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if_mcx.c revision 1.28
      1 /*	$NetBSD: if_mcx.c,v 1.28 2024/07/05 04:31:51 rin Exp $ */
      2 /*	$OpenBSD: if_mcx.c,v 1.101 2021/06/02 19:16:11 patrick Exp $ */
      3 
      4 /*
      5  * Copyright (c) 2017 David Gwynne <dlg (at) openbsd.org>
      6  * Copyright (c) 2019 Jonathan Matthew <jmatthew (at) openbsd.org>
      7  *
      8  * Permission to use, copy, modify, and distribute this software for any
      9  * purpose with or without fee is hereby granted, provided that the above
     10  * copyright notice and this permission notice appear in all copies.
     11  *
     12  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
     13  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
     14  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
     15  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
     16  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
     17  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
     18  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
     19  */
     20 
     21 #ifdef _KERNEL_OPT
     22 #include "opt_net_mpsafe.h"
     23 #endif
     24 
     25 #include <sys/cdefs.h>
     26 __KERNEL_RCSID(0, "$NetBSD: if_mcx.c,v 1.28 2024/07/05 04:31:51 rin Exp $");
     27 
     28 #include <sys/param.h>
     29 #include <sys/systm.h>
     30 #include <sys/sockio.h>
     31 #include <sys/mbuf.h>
     32 #include <sys/kernel.h>
     33 #include <sys/socket.h>
     34 #include <sys/device.h>
     35 #include <sys/pool.h>
     36 #include <sys/queue.h>
     37 #include <sys/callout.h>
     38 #include <sys/workqueue.h>
     39 #include <sys/atomic.h>
     40 #include <sys/timetc.h>
     41 #include <sys/kmem.h>
     42 #include <sys/bus.h>
     43 #include <sys/interrupt.h>
     44 #include <sys/pcq.h>
     45 #include <sys/cpu.h>
     46 #include <sys/bitops.h>
     47 
     48 #include <machine/intr.h>
     49 
     50 #include <net/if.h>
     51 #include <net/if_dl.h>
     52 #include <net/if_ether.h>
     53 #include <net/if_media.h>
     54 #include <net/if_vlanvar.h>
     55 #include <net/toeplitz.h>
     56 
     57 #include <net/bpf.h>
     58 
     59 #include <netinet/in.h>
     60 
     61 #include <dev/pci/pcireg.h>
     62 #include <dev/pci/pcivar.h>
     63 #include <dev/pci/pcidevs.h>
     64 
     65 /* TODO: Port kstat key/value stuff to evcnt/sysmon */
     66 #define	NKSTAT		0
     67 
     68 /* XXX This driver is not yet MP-safe; don't claim to be! */
     69 /* #ifdef NET_MPSAFE */
     70 /* #define	MCX_MPSAFE	1 */
     71 /* #define	CALLOUT_FLAGS	CALLOUT_MPSAFE */
     72 /* #else */
     73 #define	CALLOUT_FLAGS	0
     74 /* #endif */
     75 
     76 #define	MCX_TXQ_NUM		2048
     77 
     78 #define BUS_DMASYNC_PRERW	(BUS_DMASYNC_PREREAD|BUS_DMASYNC_PREWRITE)
     79 #define BUS_DMASYNC_POSTRW	(BUS_DMASYNC_POSTREAD|BUS_DMASYNC_POSTWRITE)
     80 
     81 #define MCX_HCA_BAR	PCI_MAPREG_START /* BAR 0 */
     82 
     83 #define MCX_FW_VER			0x0000
     84 #define  MCX_FW_VER_MAJOR(_v)			((_v) & 0xffff)
     85 #define  MCX_FW_VER_MINOR(_v)			((_v) >> 16)
     86 #define MCX_CMDIF_FW_SUBVER		0x0004
     87 #define  MCX_FW_VER_SUBMINOR(_v)		((_v) & 0xffff)
     88 #define  MCX_CMDIF(_v)				((_v) >> 16)
     89 
     90 #define MCX_ISSI			1 /* as per the PRM */
     91 #define MCX_CMD_IF_SUPPORTED		5
     92 
     93 #define MCX_HARDMTU			9500
     94 
     95 #define MCX_PAGE_SHIFT			12
     96 #define MCX_PAGE_SIZE			(1 << MCX_PAGE_SHIFT)
     97 
     98 /* queue sizes */
     99 #define MCX_LOG_EQ_SIZE			7
    100 #define MCX_LOG_CQ_SIZE			12
    101 #define MCX_LOG_RQ_SIZE			10
    102 #define MCX_LOG_SQ_SIZE			11
    103 
    104 #define MCX_MAX_QUEUES			16
    105 
    106 /* completion event moderation - about 10khz, or 90% of the cq */
    107 #define MCX_CQ_MOD_PERIOD		50
    108 #define MCX_CQ_MOD_COUNTER		\
    109 	(((1 << (MCX_LOG_CQ_SIZE - 1)) * 9) / 10)
    110 
    111 #define MCX_LOG_SQ_ENTRY_SIZE		6
    112 #define MCX_SQ_ENTRY_MAX_SLOTS		4
    113 #define MCX_SQ_SEGS_PER_SLOT		\
    114 	(sizeof(struct mcx_sq_entry) / sizeof(struct mcx_sq_entry_seg))
    115 #define MCX_SQ_MAX_SEGMENTS		\
    116 	1 + ((MCX_SQ_ENTRY_MAX_SLOTS-1) * MCX_SQ_SEGS_PER_SLOT)
    117 
    118 #define MCX_LOG_FLOW_TABLE_SIZE		5
    119 #define MCX_NUM_STATIC_FLOWS		4 /* promisc, allmulti, ucast, bcast */
    120 #define MCX_NUM_MCAST_FLOWS 		\
    121 	((1 << MCX_LOG_FLOW_TABLE_SIZE) - MCX_NUM_STATIC_FLOWS)
    122 
    123 #define MCX_SQ_INLINE_SIZE		18
    124 CTASSERT(ETHER_HDR_LEN + ETHER_VLAN_ENCAP_LEN == MCX_SQ_INLINE_SIZE);
    125 
    126 /* doorbell offsets */
    127 #define MCX_DOORBELL_AREA_SIZE		MCX_PAGE_SIZE
    128 
    129 #define MCX_CQ_DOORBELL_BASE		0
    130 #define MCX_CQ_DOORBELL_STRIDE		64
    131 
    132 #define MCX_WQ_DOORBELL_BASE		MCX_PAGE_SIZE/2
    133 #define MCX_WQ_DOORBELL_STRIDE		64
    134 /* make sure the doorbells fit */
    135 CTASSERT(MCX_MAX_QUEUES * MCX_CQ_DOORBELL_STRIDE < MCX_WQ_DOORBELL_BASE);
    136 CTASSERT(MCX_MAX_QUEUES * MCX_WQ_DOORBELL_STRIDE <
    137     MCX_DOORBELL_AREA_SIZE - MCX_WQ_DOORBELL_BASE);
    138 
    139 #define MCX_WQ_DOORBELL_MASK		0xffff
    140 
    141 /* uar registers */
    142 #define MCX_UAR_CQ_DOORBELL		0x20
    143 #define MCX_UAR_EQ_DOORBELL_ARM		0x40
    144 #define MCX_UAR_EQ_DOORBELL		0x48
    145 #define MCX_UAR_BF			0x800
    146 
    147 #define MCX_CMDQ_ADDR_HI		0x0010
    148 #define MCX_CMDQ_ADDR_LO		0x0014
    149 #define MCX_CMDQ_ADDR_NMASK		0xfff
    150 #define MCX_CMDQ_LOG_SIZE(_v)		((_v) >> 4 & 0xf)
    151 #define MCX_CMDQ_LOG_STRIDE(_v)		((_v) >> 0 & 0xf)
    152 #define MCX_CMDQ_INTERFACE_MASK		(0x3 << 8)
    153 #define MCX_CMDQ_INTERFACE_FULL_DRIVER	(0x0 << 8)
    154 #define MCX_CMDQ_INTERFACE_DISABLED	(0x1 << 8)
    155 
    156 #define MCX_CMDQ_DOORBELL		0x0018
    157 
    158 #define MCX_STATE			0x01fc
    159 #define MCX_STATE_MASK				(1U << 31)
    160 #define MCX_STATE_INITIALIZING			(1 << 31)
    161 #define MCX_STATE_READY				(0 << 31)
    162 #define MCX_STATE_INTERFACE_MASK		(0x3 << 24)
    163 #define MCX_STATE_INTERFACE_FULL_DRIVER		(0x0 << 24)
    164 #define MCX_STATE_INTERFACE_DISABLED		(0x1 << 24)
    165 
    166 #define MCX_INTERNAL_TIMER		0x1000
    167 #define MCX_INTERNAL_TIMER_H		0x1000
    168 #define MCX_INTERNAL_TIMER_L		0x1004
    169 
    170 #define MCX_CLEAR_INT			0x100c
    171 
    172 #define MCX_REG_OP_WRITE		0
    173 #define MCX_REG_OP_READ			1
    174 
    175 #define MCX_REG_PMLP			0x5002
    176 #define MCX_REG_PMTU			0x5003
    177 #define MCX_REG_PTYS			0x5004
    178 #define MCX_REG_PAOS			0x5006
    179 #define MCX_REG_PFCC			0x5007
    180 #define MCX_REG_PPCNT			0x5008
    181 #define MCX_REG_MTCAP			0x9009 /* mgmt temp capabilities */
    182 #define MCX_REG_MTMP			0x900a /* mgmt temp */
    183 #define MCX_REG_MCIA			0x9014
    184 #define MCX_REG_MCAM			0x907f
    185 
    186 #define MCX_ETHER_CAP_SGMII		0
    187 #define MCX_ETHER_CAP_1000_KX		1
    188 #define MCX_ETHER_CAP_10G_CX4		2
    189 #define MCX_ETHER_CAP_10G_KX4		3
    190 #define MCX_ETHER_CAP_10G_KR		4
    191 #define MCX_ETHER_CAP_20G_KR2		5
    192 #define MCX_ETHER_CAP_40G_CR4		6
    193 #define MCX_ETHER_CAP_40G_KR4		7
    194 #define MCX_ETHER_CAP_56G_R4		8
    195 #define MCX_ETHER_CAP_10G_CR		12
    196 #define MCX_ETHER_CAP_10G_SR		13
    197 #define MCX_ETHER_CAP_10G_LR		14
    198 #define MCX_ETHER_CAP_40G_SR4		15
    199 #define MCX_ETHER_CAP_40G_LR4		16
    200 #define MCX_ETHER_CAP_50G_SR2		18
    201 #define MCX_ETHER_CAP_100G_CR4		20
    202 #define MCX_ETHER_CAP_100G_SR4		21
    203 #define MCX_ETHER_CAP_100G_KR4		22
    204 #define MCX_ETHER_CAP_100G_LR4		23
    205 #define MCX_ETHER_CAP_100_TX		24
    206 #define MCX_ETHER_CAP_1000_T		25
    207 #define MCX_ETHER_CAP_10G_T		26
    208 #define MCX_ETHER_CAP_25G_CR		27
    209 #define MCX_ETHER_CAP_25G_KR		28
    210 #define MCX_ETHER_CAP_25G_SR		29
    211 #define MCX_ETHER_CAP_50G_CR2		30
    212 #define MCX_ETHER_CAP_50G_KR2		31
    213 
    214 #define MCX_MAX_CQE			32
    215 
    216 #define MCX_CMD_QUERY_HCA_CAP		0x100
    217 #define MCX_CMD_QUERY_ADAPTER		0x101
    218 #define MCX_CMD_INIT_HCA		0x102
    219 #define MCX_CMD_TEARDOWN_HCA		0x103
    220 #define MCX_CMD_ENABLE_HCA		0x104
    221 #define MCX_CMD_DISABLE_HCA		0x105
    222 #define MCX_CMD_QUERY_PAGES		0x107
    223 #define MCX_CMD_MANAGE_PAGES		0x108
    224 #define MCX_CMD_SET_HCA_CAP		0x109
    225 #define MCX_CMD_QUERY_ISSI		0x10a
    226 #define MCX_CMD_SET_ISSI		0x10b
    227 #define MCX_CMD_SET_DRIVER_VERSION	0x10d
    228 #define MCX_CMD_QUERY_SPECIAL_CONTEXTS	0x203
    229 #define MCX_CMD_CREATE_EQ		0x301
    230 #define MCX_CMD_DESTROY_EQ		0x302
    231 #define MCX_CMD_QUERY_EQ		0x303
    232 #define MCX_CMD_CREATE_CQ		0x400
    233 #define MCX_CMD_DESTROY_CQ		0x401
    234 #define MCX_CMD_QUERY_CQ		0x402
    235 #define MCX_CMD_QUERY_NIC_VPORT_CONTEXT 0x754
    236 #define MCX_CMD_MODIFY_NIC_VPORT_CONTEXT \
    237 					0x755
    238 #define MCX_CMD_QUERY_VPORT_COUNTERS 	0x770
    239 #define MCX_CMD_ALLOC_PD		0x800
    240 #define MCX_CMD_ALLOC_UAR		0x802
    241 #define MCX_CMD_ACCESS_REG		0x805
    242 #define MCX_CMD_ALLOC_TRANSPORT_DOMAIN	0x816
    243 #define MCX_CMD_CREATE_TIR		0x900
    244 #define MCX_CMD_DESTROY_TIR		0x902
    245 #define MCX_CMD_CREATE_SQ		0x904
    246 #define MCX_CMD_MODIFY_SQ		0x905
    247 #define MCX_CMD_DESTROY_SQ		0x906
    248 #define MCX_CMD_QUERY_SQ		0x907
    249 #define MCX_CMD_CREATE_RQ		0x908
    250 #define MCX_CMD_MODIFY_RQ		0x909
    251 #define MCX_CMD_DESTROY_RQ		0x90a
    252 #define MCX_CMD_QUERY_RQ		0x90b
    253 #define MCX_CMD_CREATE_TIS		0x912
    254 #define MCX_CMD_DESTROY_TIS		0x914
    255 #define MCX_CMD_CREATE_RQT		0x916
    256 #define MCX_CMD_DESTROY_RQT		0x918
    257 #define MCX_CMD_SET_FLOW_TABLE_ROOT	0x92f
    258 #define MCX_CMD_CREATE_FLOW_TABLE	0x930
    259 #define MCX_CMD_DESTROY_FLOW_TABLE	0x931
    260 #define MCX_CMD_QUERY_FLOW_TABLE	0x932
    261 #define MCX_CMD_CREATE_FLOW_GROUP	0x933
    262 #define MCX_CMD_DESTROY_FLOW_GROUP	0x934
    263 #define MCX_CMD_QUERY_FLOW_GROUP	0x935
    264 #define MCX_CMD_SET_FLOW_TABLE_ENTRY	0x936
    265 #define MCX_CMD_QUERY_FLOW_TABLE_ENTRY	0x937
    266 #define MCX_CMD_DELETE_FLOW_TABLE_ENTRY	0x938
    267 #define MCX_CMD_ALLOC_FLOW_COUNTER	0x939
    268 #define MCX_CMD_QUERY_FLOW_COUNTER	0x93b
    269 
    270 #define MCX_QUEUE_STATE_RST		0
    271 #define MCX_QUEUE_STATE_RDY		1
    272 #define MCX_QUEUE_STATE_ERR		3
    273 
    274 #define MCX_FLOW_TABLE_TYPE_RX		0
    275 #define MCX_FLOW_TABLE_TYPE_TX		1
    276 
    277 #define MCX_CMDQ_INLINE_DATASIZE	16
    278 
    279 struct mcx_cmdq_entry {
    280 	uint8_t			cq_type;
    281 #define MCX_CMDQ_TYPE_PCIE		0x7
    282 	uint8_t			cq_reserved0[3];
    283 
    284 	uint32_t		cq_input_length;
    285 	uint64_t		cq_input_ptr;
    286 	uint8_t			cq_input_data[MCX_CMDQ_INLINE_DATASIZE];
    287 
    288 	uint8_t			cq_output_data[MCX_CMDQ_INLINE_DATASIZE];
    289 	uint64_t		cq_output_ptr;
    290 	uint32_t		cq_output_length;
    291 
    292 	uint8_t			cq_token;
    293 	uint8_t			cq_signature;
    294 	uint8_t			cq_reserved1[1];
    295 	uint8_t			cq_status;
    296 #define MCX_CQ_STATUS_SHIFT		1
    297 #define MCX_CQ_STATUS_MASK		(0x7f << MCX_CQ_STATUS_SHIFT)
    298 #define MCX_CQ_STATUS_OK		(0x00 << MCX_CQ_STATUS_SHIFT)
    299 #define MCX_CQ_STATUS_INT_ERR		(0x01 << MCX_CQ_STATUS_SHIFT)
    300 #define MCX_CQ_STATUS_BAD_OPCODE	(0x02 << MCX_CQ_STATUS_SHIFT)
    301 #define MCX_CQ_STATUS_BAD_PARAM		(0x03 << MCX_CQ_STATUS_SHIFT)
    302 #define MCX_CQ_STATUS_BAD_SYS_STATE	(0x04 << MCX_CQ_STATUS_SHIFT)
    303 #define MCX_CQ_STATUS_BAD_RESOURCE	(0x05 << MCX_CQ_STATUS_SHIFT)
    304 #define MCX_CQ_STATUS_RESOURCE_BUSY	(0x06 << MCX_CQ_STATUS_SHIFT)
    305 #define MCX_CQ_STATUS_EXCEED_LIM	(0x08 << MCX_CQ_STATUS_SHIFT)
    306 #define MCX_CQ_STATUS_BAD_RES_STATE	(0x09 << MCX_CQ_STATUS_SHIFT)
    307 #define MCX_CQ_STATUS_BAD_INDEX		(0x0a << MCX_CQ_STATUS_SHIFT)
    308 #define MCX_CQ_STATUS_NO_RESOURCES	(0x0f << MCX_CQ_STATUS_SHIFT)
    309 #define MCX_CQ_STATUS_BAD_INPUT_LEN	(0x50 << MCX_CQ_STATUS_SHIFT)
    310 #define MCX_CQ_STATUS_BAD_OUTPUT_LEN	(0x51 << MCX_CQ_STATUS_SHIFT)
    311 #define MCX_CQ_STATUS_BAD_RESOURCE_STATE \
    312 					(0x10 << MCX_CQ_STATUS_SHIFT)
    313 #define MCX_CQ_STATUS_BAD_SIZE		(0x40 << MCX_CQ_STATUS_SHIFT)
    314 #define MCX_CQ_STATUS_OWN_MASK		0x1
    315 #define MCX_CQ_STATUS_OWN_SW		0x0
    316 #define MCX_CQ_STATUS_OWN_HW		0x1
    317 } __packed __aligned(8);
    318 
    319 #define MCX_CMDQ_MAILBOX_DATASIZE	512
    320 
    321 struct mcx_cmdq_mailbox {
    322 	uint8_t			mb_data[MCX_CMDQ_MAILBOX_DATASIZE];
    323 	uint8_t			mb_reserved0[48];
    324 	uint64_t		mb_next_ptr;
    325 	uint32_t		mb_block_number;
    326 	uint8_t			mb_reserved1[1];
    327 	uint8_t			mb_token;
    328 	uint8_t			mb_ctrl_signature;
    329 	uint8_t			mb_signature;
    330 } __packed __aligned(8);
    331 
    332 #define MCX_CMDQ_MAILBOX_ALIGN	(1 << 10)
    333 #define MCX_CMDQ_MAILBOX_SIZE	roundup(sizeof(struct mcx_cmdq_mailbox), \
    334 				    MCX_CMDQ_MAILBOX_ALIGN)
    335 /*
    336  * command mailbox structures
    337  */
    338 
    339 struct mcx_cmd_enable_hca_in {
    340 	uint16_t		cmd_opcode;
    341 	uint8_t			cmd_reserved0[4];
    342 	uint16_t		cmd_op_mod;
    343 	uint8_t			cmd_reserved1[2];
    344 	uint16_t		cmd_function_id;
    345 	uint8_t			cmd_reserved2[4];
    346 } __packed __aligned(4);
    347 
    348 struct mcx_cmd_enable_hca_out {
    349 	uint8_t			cmd_status;
    350 	uint8_t			cmd_reserved0[3];
    351 	uint32_t		cmd_syndrome;
    352 	uint8_t			cmd_reserved1[4];
    353 } __packed __aligned(4);
    354 
    355 struct mcx_cmd_init_hca_in {
    356 	uint16_t		cmd_opcode;
    357 	uint8_t			cmd_reserved0[4];
    358 	uint16_t		cmd_op_mod;
    359 	uint8_t			cmd_reserved1[8];
    360 } __packed __aligned(4);
    361 
    362 struct mcx_cmd_init_hca_out {
    363 	uint8_t			cmd_status;
    364 	uint8_t			cmd_reserved0[3];
    365 	uint32_t		cmd_syndrome;
    366 	uint8_t			cmd_reserved1[8];
    367 } __packed __aligned(4);
    368 
    369 struct mcx_cmd_teardown_hca_in {
    370 	uint16_t		cmd_opcode;
    371 	uint8_t			cmd_reserved0[4];
    372 	uint16_t		cmd_op_mod;
    373 	uint8_t			cmd_reserved1[2];
    374 #define MCX_CMD_TEARDOWN_HCA_GRACEFUL	0x0
    375 #define MCX_CMD_TEARDOWN_HCA_PANIC	0x1
    376 	uint16_t		cmd_profile;
    377 	uint8_t			cmd_reserved2[4];
    378 } __packed __aligned(4);
    379 
    380 struct mcx_cmd_teardown_hca_out {
    381 	uint8_t			cmd_status;
    382 	uint8_t			cmd_reserved0[3];
    383 	uint32_t		cmd_syndrome;
    384 	uint8_t			cmd_reserved1[8];
    385 } __packed __aligned(4);
    386 
    387 struct mcx_cmd_access_reg_in {
    388 	uint16_t		cmd_opcode;
    389 	uint8_t			cmd_reserved0[4];
    390 	uint16_t		cmd_op_mod;
    391 	uint8_t			cmd_reserved1[2];
    392 	uint16_t		cmd_register_id;
    393 	uint32_t		cmd_argument;
    394 } __packed __aligned(4);
    395 
    396 struct mcx_cmd_access_reg_out {
    397 	uint8_t			cmd_status;
    398 	uint8_t			cmd_reserved0[3];
    399 	uint32_t		cmd_syndrome;
    400 	uint8_t			cmd_reserved1[8];
    401 } __packed __aligned(4);
    402 
    403 struct mcx_reg_pmtu {
    404 	uint8_t			rp_reserved1;
    405 	uint8_t			rp_local_port;
    406 	uint8_t			rp_reserved2[2];
    407 	uint16_t		rp_max_mtu;
    408 	uint8_t			rp_reserved3[2];
    409 	uint16_t		rp_admin_mtu;
    410 	uint8_t			rp_reserved4[2];
    411 	uint16_t		rp_oper_mtu;
    412 	uint8_t			rp_reserved5[2];
    413 } __packed __aligned(4);
    414 
    415 struct mcx_reg_ptys {
    416 	uint8_t			rp_reserved1;
    417 	uint8_t			rp_local_port;
    418 	uint8_t			rp_reserved2;
    419 	uint8_t			rp_proto_mask;
    420 #define MCX_REG_PTYS_PROTO_MASK_ETH		(1 << 2)
    421 	uint8_t			rp_reserved3[8];
    422 	uint32_t		rp_eth_proto_cap;
    423 	uint8_t			rp_reserved4[8];
    424 	uint32_t		rp_eth_proto_admin;
    425 	uint8_t			rp_reserved5[8];
    426 	uint32_t		rp_eth_proto_oper;
    427 	uint8_t			rp_reserved6[24];
    428 } __packed __aligned(4);
    429 
    430 struct mcx_reg_paos {
    431 	uint8_t			rp_reserved1;
    432 	uint8_t			rp_local_port;
    433 	uint8_t			rp_admin_status;
    434 #define MCX_REG_PAOS_ADMIN_STATUS_UP		1
    435 #define MCX_REG_PAOS_ADMIN_STATUS_DOWN		2
    436 #define MCX_REG_PAOS_ADMIN_STATUS_UP_ONCE	3
    437 #define MCX_REG_PAOS_ADMIN_STATUS_DISABLED	4
    438 	uint8_t			rp_oper_status;
    439 #define MCX_REG_PAOS_OPER_STATUS_UP		1
    440 #define MCX_REG_PAOS_OPER_STATUS_DOWN		2
    441 #define MCX_REG_PAOS_OPER_STATUS_FAILED		4
    442 	uint8_t			rp_admin_state_update;
    443 #define MCX_REG_PAOS_ADMIN_STATE_UPDATE_EN	(1 << 7)
    444 	uint8_t			rp_reserved2[11];
    445 } __packed __aligned(4);
    446 
    447 struct mcx_reg_pfcc {
    448 	uint8_t			rp_reserved1;
    449 	uint8_t			rp_local_port;
    450 	uint8_t			rp_reserved2[3];
    451 	uint8_t			rp_prio_mask_tx;
    452 	uint8_t			rp_reserved3;
    453 	uint8_t			rp_prio_mask_rx;
    454 	uint8_t			rp_pptx_aptx;
    455 	uint8_t			rp_pfctx;
    456 	uint8_t			rp_fctx_dis;
    457 	uint8_t			rp_reserved4;
    458 	uint8_t			rp_pprx_aprx;
    459 	uint8_t			rp_pfcrx;
    460 	uint8_t			rp_reserved5[2];
    461 	uint16_t		rp_dev_stall_min;
    462 	uint16_t		rp_dev_stall_crit;
    463 	uint8_t			rp_reserved6[12];
    464 } __packed __aligned(4);
    465 
    466 #define MCX_PMLP_MODULE_NUM_MASK	0xff
    467 struct mcx_reg_pmlp {
    468 	uint8_t			rp_rxtx;
    469 	uint8_t			rp_local_port;
    470 	uint8_t			rp_reserved0;
    471 	uint8_t			rp_width;
    472 	uint32_t		rp_lane0_mapping;
    473 	uint32_t		rp_lane1_mapping;
    474 	uint32_t		rp_lane2_mapping;
    475 	uint32_t		rp_lane3_mapping;
    476 	uint8_t			rp_reserved1[44];
    477 } __packed __aligned(4);
    478 
    479 struct mcx_reg_ppcnt {
    480 	uint8_t			ppcnt_swid;
    481 	uint8_t			ppcnt_local_port;
    482 	uint8_t			ppcnt_pnat;
    483 	uint8_t			ppcnt_grp;
    484 #define MCX_REG_PPCNT_GRP_IEEE8023		0x00
    485 #define MCX_REG_PPCNT_GRP_RFC2863		0x01
    486 #define MCX_REG_PPCNT_GRP_RFC2819		0x02
    487 #define MCX_REG_PPCNT_GRP_RFC3635		0x03
    488 #define MCX_REG_PPCNT_GRP_PER_PRIO		0x10
    489 #define MCX_REG_PPCNT_GRP_PER_TC		0x11
    490 #define MCX_REG_PPCNT_GRP_PER_RX_BUFFER		0x11
    491 
    492 	uint8_t			ppcnt_clr;
    493 	uint8_t			ppcnt_reserved1[2];
    494 	uint8_t			ppcnt_prio_tc;
    495 #define MCX_REG_PPCNT_CLR			(1 << 7)
    496 
    497 	uint8_t			ppcnt_counter_set[248];
    498 } __packed __aligned(8);
    499 CTASSERT(sizeof(struct mcx_reg_ppcnt) == 256);
    500 CTASSERT((offsetof(struct mcx_reg_ppcnt, ppcnt_counter_set) %
    501     sizeof(uint64_t)) == 0);
    502 
    503 enum mcx_ppcnt_ieee8023 {
    504 	frames_transmitted_ok,
    505 	frames_received_ok,
    506 	frame_check_sequence_errors,
    507 	alignment_errors,
    508 	octets_transmitted_ok,
    509 	octets_received_ok,
    510 	multicast_frames_xmitted_ok,
    511 	broadcast_frames_xmitted_ok,
    512 	multicast_frames_received_ok,
    513 	broadcast_frames_received_ok,
    514 	in_range_length_errors,
    515 	out_of_range_length_field,
    516 	frame_too_long_errors,
    517 	symbol_error_during_carrier,
    518 	mac_control_frames_transmitted,
    519 	mac_control_frames_received,
    520 	unsupported_opcodes_received,
    521 	pause_mac_ctrl_frames_received,
    522 	pause_mac_ctrl_frames_transmitted,
    523 
    524 	mcx_ppcnt_ieee8023_count
    525 };
    526 CTASSERT(mcx_ppcnt_ieee8023_count * sizeof(uint64_t) == 0x98);
    527 
    528 enum mcx_ppcnt_rfc2863 {
    529 	in_octets,
    530 	in_ucast_pkts,
    531 	in_discards,
    532 	in_errors,
    533 	in_unknown_protos,
    534 	out_octets,
    535 	out_ucast_pkts,
    536 	out_discards,
    537 	out_errors,
    538 	in_multicast_pkts,
    539 	in_broadcast_pkts,
    540 	out_multicast_pkts,
    541 	out_broadcast_pkts,
    542 
    543 	mcx_ppcnt_rfc2863_count
    544 };
    545 CTASSERT(mcx_ppcnt_rfc2863_count * sizeof(uint64_t) == 0x68);
    546 
    547 enum mcx_ppcnt_rfc2819 {
    548 	drop_events,
    549 	octets,
    550 	pkts,
    551 	broadcast_pkts,
    552 	multicast_pkts,
    553 	crc_align_errors,
    554 	undersize_pkts,
    555 	oversize_pkts,
    556 	fragments,
    557 	jabbers,
    558 	collisions,
    559 	pkts64octets,
    560 	pkts65to127octets,
    561 	pkts128to255octets,
    562 	pkts256to511octets,
    563 	pkts512to1023octets,
    564 	pkts1024to1518octets,
    565 	pkts1519to2047octets,
    566 	pkts2048to4095octets,
    567 	pkts4096to8191octets,
    568 	pkts8192to10239octets,
    569 
    570 	mcx_ppcnt_rfc2819_count
    571 };
    572 CTASSERT((mcx_ppcnt_rfc2819_count * sizeof(uint64_t)) == 0xa8);
    573 
    574 enum mcx_ppcnt_rfc3635 {
    575 	dot3stats_alignment_errors,
    576 	dot3stats_fcs_errors,
    577 	dot3stats_single_collision_frames,
    578 	dot3stats_multiple_collision_frames,
    579 	dot3stats_sqe_test_errors,
    580 	dot3stats_deferred_transmissions,
    581 	dot3stats_late_collisions,
    582 	dot3stats_excessive_collisions,
    583 	dot3stats_internal_mac_transmit_errors,
    584 	dot3stats_carrier_sense_errors,
    585 	dot3stats_frame_too_longs,
    586 	dot3stats_internal_mac_receive_errors,
    587 	dot3stats_symbol_errors,
    588 	dot3control_in_unknown_opcodes,
    589 	dot3in_pause_frames,
    590 	dot3out_pause_frames,
    591 
    592 	mcx_ppcnt_rfc3635_count
    593 };
    594 CTASSERT((mcx_ppcnt_rfc3635_count * sizeof(uint64_t)) == 0x80);
    595 
    596 struct mcx_reg_mcam {
    597 	uint8_t			_reserved1[1];
    598 	uint8_t			mcam_feature_group;
    599 	uint8_t			_reserved2[1];
    600 	uint8_t			mcam_access_reg_group;
    601 	uint8_t			_reserved3[4];
    602 	uint8_t			mcam_access_reg_cap_mask[16];
    603 	uint8_t			_reserved4[16];
    604 	uint8_t			mcam_feature_cap_mask[16];
    605 	uint8_t			_reserved5[16];
    606 } __packed __aligned(4);
    607 
    608 #define MCX_BITFIELD_BIT(bf, b)	(bf[(sizeof bf - 1) - (b / 8)] & (b % 8))
    609 
    610 #define MCX_MCAM_FEATURE_CAP_SENSOR_MAP	6
    611 
    612 struct mcx_reg_mtcap {
    613 	uint8_t			_reserved1[3];
    614 	uint8_t			mtcap_sensor_count;
    615 	uint8_t			_reserved2[4];
    616 
    617 	uint64_t		mtcap_sensor_map;
    618 };
    619 
    620 struct mcx_reg_mtmp {
    621 	uint8_t			_reserved1[2];
    622 	uint16_t		mtmp_sensor_index;
    623 
    624 	uint8_t			_reserved2[2];
    625 	uint16_t		mtmp_temperature;
    626 
    627 	uint16_t		mtmp_mte_mtr;
    628 #define MCX_REG_MTMP_MTE		(1 << 15)
    629 #define MCX_REG_MTMP_MTR		(1 << 14)
    630 	uint16_t		mtmp_max_temperature;
    631 
    632 	uint16_t		mtmp_tee;
    633 #define MCX_REG_MTMP_TEE_NOPE		(0 << 14)
    634 #define MCX_REG_MTMP_TEE_GENERATE	(1 << 14)
    635 #define MCX_REG_MTMP_TEE_GENERATE_ONE	(2 << 14)
    636 	uint16_t		mtmp_temperature_threshold_hi;
    637 
    638 	uint8_t			_reserved3[2];
    639 	uint16_t		mtmp_temperature_threshold_lo;
    640 
    641 	uint8_t			_reserved4[4];
    642 
    643 	uint8_t			mtmp_sensor_name[8];
    644 };
    645 CTASSERT(sizeof(struct mcx_reg_mtmp) == 0x20);
    646 CTASSERT(offsetof(struct mcx_reg_mtmp, mtmp_sensor_name) == 0x18);
    647 
    648 #define MCX_MCIA_EEPROM_BYTES	32
    649 struct mcx_reg_mcia {
    650 	uint8_t			rm_l;
    651 	uint8_t			rm_module;
    652 	uint8_t			rm_reserved0;
    653 	uint8_t			rm_status;
    654 	uint8_t			rm_i2c_addr;
    655 	uint8_t			rm_page_num;
    656 	uint16_t		rm_dev_addr;
    657 	uint16_t		rm_reserved1;
    658 	uint16_t		rm_size;
    659 	uint32_t		rm_reserved2;
    660 	uint8_t			rm_data[48];
    661 } __packed __aligned(4);
    662 
    663 struct mcx_cmd_query_issi_in {
    664 	uint16_t		cmd_opcode;
    665 	uint8_t			cmd_reserved0[4];
    666 	uint16_t		cmd_op_mod;
    667 	uint8_t			cmd_reserved1[8];
    668 } __packed __aligned(4);
    669 
    670 struct mcx_cmd_query_issi_il_out {
    671 	uint8_t			cmd_status;
    672 	uint8_t			cmd_reserved0[3];
    673 	uint32_t		cmd_syndrome;
    674 	uint8_t			cmd_reserved1[2];
    675 	uint16_t		cmd_current_issi;
    676 	uint8_t			cmd_reserved2[4];
    677 } __packed __aligned(4);
    678 
    679 CTASSERT(sizeof(struct mcx_cmd_query_issi_il_out) == MCX_CMDQ_INLINE_DATASIZE);
    680 
    681 struct mcx_cmd_query_issi_mb_out {
    682 	uint8_t			cmd_reserved2[16];
    683 	uint8_t			cmd_supported_issi[80]; /* very big endian */
    684 } __packed __aligned(4);
    685 
    686 CTASSERT(sizeof(struct mcx_cmd_query_issi_mb_out) <= MCX_CMDQ_MAILBOX_DATASIZE);
    687 
    688 struct mcx_cmd_set_issi_in {
    689 	uint16_t		cmd_opcode;
    690 	uint8_t			cmd_reserved0[4];
    691 	uint16_t		cmd_op_mod;
    692 	uint8_t			cmd_reserved1[2];
    693 	uint16_t		cmd_current_issi;
    694 	uint8_t			cmd_reserved2[4];
    695 } __packed __aligned(4);
    696 
    697 CTASSERT(sizeof(struct mcx_cmd_set_issi_in) <= MCX_CMDQ_INLINE_DATASIZE);
    698 
    699 struct mcx_cmd_set_issi_out {
    700 	uint8_t			cmd_status;
    701 	uint8_t			cmd_reserved0[3];
    702 	uint32_t		cmd_syndrome;
    703 	uint8_t			cmd_reserved1[8];
    704 } __packed __aligned(4);
    705 
    706 CTASSERT(sizeof(struct mcx_cmd_set_issi_out) <= MCX_CMDQ_INLINE_DATASIZE);
    707 
    708 struct mcx_cmd_query_pages_in {
    709 	uint16_t		cmd_opcode;
    710 	uint8_t			cmd_reserved0[4];
    711 	uint16_t		cmd_op_mod;
    712 #define MCX_CMD_QUERY_PAGES_BOOT	0x01
    713 #define MCX_CMD_QUERY_PAGES_INIT	0x02
    714 #define MCX_CMD_QUERY_PAGES_REGULAR	0x03
    715 	uint8_t			cmd_reserved1[8];
    716 } __packed __aligned(4);
    717 
    718 struct mcx_cmd_query_pages_out {
    719 	uint8_t			cmd_status;
    720 	uint8_t			cmd_reserved0[3];
    721 	uint32_t		cmd_syndrome;
    722 	uint8_t			cmd_reserved1[2];
    723 	uint16_t		cmd_func_id;
    724 	int32_t			cmd_num_pages;
    725 } __packed __aligned(4);
    726 
    727 struct mcx_cmd_manage_pages_in {
    728 	uint16_t		cmd_opcode;
    729 	uint8_t			cmd_reserved0[4];
    730 	uint16_t		cmd_op_mod;
    731 #define MCX_CMD_MANAGE_PAGES_ALLOC_FAIL \
    732 					0x00
    733 #define MCX_CMD_MANAGE_PAGES_ALLOC_SUCCESS \
    734 					0x01
    735 #define MCX_CMD_MANAGE_PAGES_HCA_RETURN_PAGES \
    736 					0x02
    737 	uint8_t			cmd_reserved1[2];
    738 	uint16_t		cmd_func_id;
    739 	uint32_t		cmd_input_num_entries;
    740 } __packed __aligned(4);
    741 
    742 CTASSERT(sizeof(struct mcx_cmd_manage_pages_in) == MCX_CMDQ_INLINE_DATASIZE);
    743 
    744 struct mcx_cmd_manage_pages_out {
    745 	uint8_t			cmd_status;
    746 	uint8_t			cmd_reserved0[3];
    747 	uint32_t		cmd_syndrome;
    748 	uint32_t		cmd_output_num_entries;
    749 	uint8_t			cmd_reserved1[4];
    750 } __packed __aligned(4);
    751 
    752 CTASSERT(sizeof(struct mcx_cmd_manage_pages_out) == MCX_CMDQ_INLINE_DATASIZE);
    753 
    754 struct mcx_cmd_query_hca_cap_in {
    755 	uint16_t		cmd_opcode;
    756 	uint8_t			cmd_reserved0[4];
    757 	uint16_t		cmd_op_mod;
    758 #define MCX_CMD_QUERY_HCA_CAP_MAX	(0x0 << 0)
    759 #define MCX_CMD_QUERY_HCA_CAP_CURRENT	(0x1 << 0)
    760 #define MCX_CMD_QUERY_HCA_CAP_DEVICE	(0x0 << 1)
    761 #define MCX_CMD_QUERY_HCA_CAP_OFFLOAD	(0x1 << 1)
    762 #define MCX_CMD_QUERY_HCA_CAP_FLOW	(0x7 << 1)
    763 	uint8_t			cmd_reserved1[8];
    764 } __packed __aligned(4);
    765 
    766 struct mcx_cmd_query_hca_cap_out {
    767 	uint8_t			cmd_status;
    768 	uint8_t			cmd_reserved0[3];
    769 	uint32_t		cmd_syndrome;
    770 	uint8_t			cmd_reserved1[8];
    771 } __packed __aligned(4);
    772 
    773 #define MCX_HCA_CAP_LEN			0x1000
    774 #define MCX_HCA_CAP_NMAILBOXES		\
    775 	(MCX_HCA_CAP_LEN / MCX_CMDQ_MAILBOX_DATASIZE)
    776 
    777 #if __GNUC_PREREQ__(4, 3)
    778 #define __counter__		__COUNTER__
    779 #else
    780 #define __counter__		__LINE__
    781 #endif
    782 
    783 #define __token(_tok, _num)	_tok##_num
    784 #define _token(_tok, _num)	__token(_tok, _num)
    785 #define __reserved__		_token(__reserved, __counter__)
    786 
    787 struct mcx_cap_device {
    788 	uint8_t			reserved0[16];
    789 
    790 	uint8_t			log_max_srq_sz;
    791 	uint8_t			log_max_qp_sz;
    792 	uint8_t			__reserved__[1];
    793 	uint8_t			log_max_qp; /* 5 bits */
    794 #define MCX_CAP_DEVICE_LOG_MAX_QP	0x1f
    795 
    796 	uint8_t			__reserved__[1];
    797 	uint8_t			log_max_srq; /* 5 bits */
    798 #define MCX_CAP_DEVICE_LOG_MAX_SRQ	0x1f
    799 	uint8_t			__reserved__[2];
    800 
    801 	uint8_t			__reserved__[1];
    802 	uint8_t			log_max_cq_sz;
    803 	uint8_t			__reserved__[1];
    804 	uint8_t			log_max_cq; /* 5 bits */
    805 #define MCX_CAP_DEVICE_LOG_MAX_CQ	0x1f
    806 
    807 	uint8_t			log_max_eq_sz;
    808 	uint8_t			log_max_mkey; /* 6 bits */
    809 #define MCX_CAP_DEVICE_LOG_MAX_MKEY	0x3f
    810 	uint8_t			__reserved__[1];
    811 	uint8_t			log_max_eq; /* 4 bits */
    812 #define MCX_CAP_DEVICE_LOG_MAX_EQ	0x0f
    813 
    814 	uint8_t			max_indirection;
    815 	uint8_t			log_max_mrw_sz; /* 7 bits */
    816 #define MCX_CAP_DEVICE_LOG_MAX_MRW_SZ	0x7f
    817 	uint8_t			teardown_log_max_msf_list_size;
    818 #define MCX_CAP_DEVICE_FORCE_TEARDOWN	0x80
    819 #define MCX_CAP_DEVICE_LOG_MAX_MSF_LIST_SIZE \
    820 					0x3f
    821 	uint8_t			log_max_klm_list_size; /* 6 bits */
    822 #define MCX_CAP_DEVICE_LOG_MAX_KLM_LIST_SIZE \
    823 					0x3f
    824 
    825 	uint8_t			__reserved__[1];
    826 	uint8_t			log_max_ra_req_dc; /* 6 bits */
    827 #define MCX_CAP_DEVICE_LOG_MAX_REQ_DC	0x3f
    828 	uint8_t			__reserved__[1];
    829 	uint8_t			log_max_ra_res_dc; /* 6 bits */
    830 #define MCX_CAP_DEVICE_LOG_MAX_RA_RES_DC \
    831 					0x3f
    832 
    833 	uint8_t			__reserved__[1];
    834 	uint8_t			log_max_ra_req_qp; /* 6 bits */
    835 #define MCX_CAP_DEVICE_LOG_MAX_RA_REQ_QP \
    836 					0x3f
    837 	uint8_t			__reserved__[1];
    838 	uint8_t			log_max_ra_res_qp; /* 6 bits */
    839 #define MCX_CAP_DEVICE_LOG_MAX_RA_RES_QP \
    840 					0x3f
    841 
    842 	uint8_t			flags1;
    843 #define MCX_CAP_DEVICE_END_PAD		0x80
    844 #define MCX_CAP_DEVICE_CC_QUERY_ALLOWED	0x40
    845 #define MCX_CAP_DEVICE_CC_MODIFY_ALLOWED \
    846 					0x20
    847 #define MCX_CAP_DEVICE_START_PAD	0x10
    848 #define MCX_CAP_DEVICE_128BYTE_CACHELINE \
    849 					0x08
    850 	uint8_t			__reserved__[1];
    851 	uint16_t		gid_table_size;
    852 
    853 	uint16_t		flags2;
    854 #define MCX_CAP_DEVICE_OUT_OF_SEQ_CNT	0x8000
    855 #define MCX_CAP_DEVICE_VPORT_COUNTERS	0x4000
    856 #define MCX_CAP_DEVICE_RETRANSMISSION_Q_COUNTERS \
    857 					0x2000
    858 #define MCX_CAP_DEVICE_DEBUG		0x1000
    859 #define MCX_CAP_DEVICE_MODIFY_RQ_COUNTERS_SET_ID \
    860 					0x8000
    861 #define MCX_CAP_DEVICE_RQ_DELAY_DROP	0x4000
    862 #define MCX_CAP_DEVICe_MAX_QP_CNT_MASK	0x03ff
    863 	uint16_t		pkey_table_size;
    864 
    865 	uint8_t			flags3;
    866 #define MCX_CAP_DEVICE_VPORT_GROUP_MANAGER \
    867 					0x80
    868 #define MCX_CAP_DEVICE_VHCA_GROUP_MANAGER \
    869 					0x40
    870 #define MCX_CAP_DEVICE_IB_VIRTUAL	0x20
    871 #define MCX_CAP_DEVICE_ETH_VIRTUAL	0x10
    872 #define MCX_CAP_DEVICE_ETS		0x04
    873 #define MCX_CAP_DEVICE_NIC_FLOW_TABLE	0x02
    874 #define MCX_CAP_DEVICE_ESWITCH_FLOW_TABLE \
    875 					0x01
    876 	uint8_t			local_ca_ack_delay; /* 5 bits */
    877 #define MCX_CAP_DEVICE_LOCAL_CA_ACK_DELAY \
    878 					0x1f
    879 #define MCX_CAP_DEVICE_MCAM_REG		0x40
    880 	uint8_t			port_type;
    881 #define MCX_CAP_DEVICE_PORT_MODULE_EVENT \
    882 					0x80
    883 #define MCX_CAP_DEVICE_PORT_TYPE	0x03
    884 #define MCX_CAP_DEVICE_PORT_TYPE_ETH	0x01
    885 	uint8_t			num_ports;
    886 
    887 	uint8_t			snapshot_log_max_msg;
    888 #define MCX_CAP_DEVICE_SNAPSHOT		0x80
    889 #define MCX_CAP_DEVICE_LOG_MAX_MSG	0x1f
    890 	uint8_t			max_tc; /* 4 bits */
    891 #define MCX_CAP_DEVICE_MAX_TC		0x0f
    892 	uint8_t			flags4;
    893 #define MCX_CAP_DEVICE_TEMP_WARN_EVENT	0x80
    894 #define MCX_CAP_DEVICE_DCBX		0x40
    895 #define MCX_CAP_DEVICE_ROL_S		0x02
    896 #define MCX_CAP_DEVICE_ROL_G		0x01
    897 	uint8_t			wol;
    898 #define MCX_CAP_DEVICE_WOL_S		0x40
    899 #define MCX_CAP_DEVICE_WOL_G		0x20
    900 #define MCX_CAP_DEVICE_WOL_A		0x10
    901 #define MCX_CAP_DEVICE_WOL_B		0x08
    902 #define MCX_CAP_DEVICE_WOL_M		0x04
    903 #define MCX_CAP_DEVICE_WOL_U		0x02
    904 #define MCX_CAP_DEVICE_WOL_P		0x01
    905 
    906 	uint16_t		stat_rate_support;
    907 	uint8_t			__reserved__[1];
    908 	uint8_t			cqe_version; /* 4 bits */
    909 #define MCX_CAP_DEVICE_CQE_VERSION	0x0f
    910 
    911 	uint32_t		flags5;
    912 #define MCX_CAP_DEVICE_COMPACT_ADDRESS_VECTOR \
    913 					0x80000000
    914 #define MCX_CAP_DEVICE_STRIDING_RQ	0x40000000
    915 #define MCX_CAP_DEVICE_IPOIP_ENHANCED_OFFLOADS \
    916 					0x10000000
    917 #define MCX_CAP_DEVICE_IPOIP_IPOIP_OFFLOADS \
    918 					0x08000000
    919 #define MCX_CAP_DEVICE_DC_CONNECT_CP	0x00040000
    920 #define MCX_CAP_DEVICE_DC_CNAK_DRACE	0x00020000
    921 #define MCX_CAP_DEVICE_DRAIN_SIGERR	0x00010000
    922 #define MCX_CAP_DEVICE_DRAIN_SIGERR	0x00010000
    923 #define MCX_CAP_DEVICE_CMDIF_CHECKSUM	0x0000c000
    924 #define MCX_CAP_DEVICE_SIGERR_QCE	0x00002000
    925 #define MCX_CAP_DEVICE_WQ_SIGNATURE	0x00000800
    926 #define MCX_CAP_DEVICE_SCTR_DATA_CQE	0x00000400
    927 #define MCX_CAP_DEVICE_SHO		0x00000100
    928 #define MCX_CAP_DEVICE_TPH		0x00000080
    929 #define MCX_CAP_DEVICE_RF		0x00000040
    930 #define MCX_CAP_DEVICE_DCT		0x00000020
    931 #define MCX_CAP_DEVICE_QOS		0x00000010
    932 #define MCX_CAP_DEVICe_ETH_NET_OFFLOADS	0x00000008
    933 #define MCX_CAP_DEVICE_ROCE		0x00000004
    934 #define MCX_CAP_DEVICE_ATOMIC		0x00000002
    935 
    936 	uint32_t		flags6;
    937 #define MCX_CAP_DEVICE_CQ_OI		0x80000000
    938 #define MCX_CAP_DEVICE_CQ_RESIZE	0x40000000
    939 #define MCX_CAP_DEVICE_CQ_MODERATION	0x20000000
    940 #define MCX_CAP_DEVICE_CQ_PERIOD_MODE_MODIFY \
    941 					0x10000000
    942 #define MCX_CAP_DEVICE_CQ_INVALIDATE	0x08000000
    943 #define MCX_CAP_DEVICE_RESERVED_AT_255	0x04000000
    944 #define MCX_CAP_DEVICE_CQ_EQ_REMAP	0x02000000
    945 #define MCX_CAP_DEVICE_PG		0x01000000
    946 #define MCX_CAP_DEVICE_BLOCK_LB_MC	0x00800000
    947 #define MCX_CAP_DEVICE_EXPONENTIAL_BACKOFF \
    948 					0x00400000
    949 #define MCX_CAP_DEVICE_SCQE_BREAK_MODERATION \
    950 					0x00200000
    951 #define MCX_CAP_DEVICE_CQ_PERIOD_START_FROM_CQE \
    952 					0x00100000
    953 #define MCX_CAP_DEVICE_CD		0x00080000
    954 #define MCX_CAP_DEVICE_ATM		0x00040000
    955 #define MCX_CAP_DEVICE_APM		0x00020000
    956 #define MCX_CAP_DEVICE_IMAICL		0x00010000
    957 #define MCX_CAP_DEVICE_QKV		0x00000200
    958 #define MCX_CAP_DEVICE_PKV		0x00000100
    959 #define MCX_CAP_DEVICE_SET_DETH_SQPN	0x00000080
    960 #define MCX_CAP_DEVICE_XRC		0x00000008
    961 #define MCX_CAP_DEVICE_UD		0x00000004
    962 #define MCX_CAP_DEVICE_UC		0x00000002
    963 #define MCX_CAP_DEVICE_RC		0x00000001
    964 
    965 	uint8_t			uar_flags;
    966 #define MCX_CAP_DEVICE_UAR_4K		0x80
    967 	uint8_t			uar_sz;	/* 6 bits */
    968 #define MCX_CAP_DEVICE_UAR_SZ		0x3f
    969 	uint8_t			__reserved__[1];
    970 	uint8_t			log_pg_sz;
    971 
    972 	uint8_t			flags7;
    973 #define MCX_CAP_DEVICE_BF		0x80
    974 #define MCX_CAP_DEVICE_DRIVER_VERSION	0x40
    975 #define MCX_CAP_DEVICE_PAD_TX_ETH_PACKET \
    976 					0x20
    977 	uint8_t			log_bf_reg_size; /* 5 bits */
    978 #define MCX_CAP_DEVICE_LOG_BF_REG_SIZE	0x1f
    979 	uint8_t			__reserved__[2];
    980 
    981 	uint16_t		num_of_diagnostic_counters;
    982 	uint16_t		max_wqe_sz_sq;
    983 
    984 	uint8_t			__reserved__[2];
    985 	uint16_t		max_wqe_sz_rq;
    986 
    987 	uint8_t			__reserved__[2];
    988 	uint16_t		max_wqe_sz_sq_dc;
    989 
    990 	uint32_t		max_qp_mcg; /* 25 bits */
    991 #define MCX_CAP_DEVICE_MAX_QP_MCG	0x1ffffff
    992 
    993 	uint8_t			__reserved__[3];
    994 	uint8_t			log_max_mcq;
    995 
    996 	uint8_t			log_max_transport_domain; /* 5 bits */
    997 #define MCX_CAP_DEVICE_LOG_MAX_TRANSORT_DOMAIN \
    998 					0x1f
    999 	uint8_t			log_max_pd; /* 5 bits */
   1000 #define MCX_CAP_DEVICE_LOG_MAX_PD	0x1f
   1001 	uint8_t			__reserved__[1];
   1002 	uint8_t			log_max_xrcd; /* 5 bits */
   1003 #define MCX_CAP_DEVICE_LOG_MAX_XRCD	0x1f
   1004 
   1005 	uint8_t			__reserved__[2];
   1006 	uint16_t		max_flow_counter;
   1007 
   1008 	uint8_t			log_max_rq; /* 5 bits */
   1009 #define MCX_CAP_DEVICE_LOG_MAX_RQ	0x1f
   1010 	uint8_t			log_max_sq; /* 5 bits */
   1011 #define MCX_CAP_DEVICE_LOG_MAX_SQ	0x1f
   1012 	uint8_t			log_max_tir; /* 5 bits */
   1013 #define MCX_CAP_DEVICE_LOG_MAX_TIR	0x1f
   1014 	uint8_t			log_max_tis; /* 5 bits */
   1015 #define MCX_CAP_DEVICE_LOG_MAX_TIS	0x1f
   1016 
   1017 	uint8_t 		flags8;
   1018 #define MCX_CAP_DEVICE_BASIC_CYCLIC_RCV_WQE \
   1019 					0x80
   1020 #define MCX_CAP_DEVICE_LOG_MAX_RMP	0x1f
   1021 	uint8_t			log_max_rqt; /* 5 bits */
   1022 #define MCX_CAP_DEVICE_LOG_MAX_RQT	0x1f
   1023 	uint8_t			log_max_rqt_size; /* 5 bits */
   1024 #define MCX_CAP_DEVICE_LOG_MAX_RQT_SIZE	0x1f
   1025 	uint8_t			log_max_tis_per_sq; /* 5 bits */
   1026 #define MCX_CAP_DEVICE_LOG_MAX_TIS_PER_SQ \
   1027 					0x1f
   1028 
   1029 	uint8_t			flags9;
   1030 #define MXC_CAP_DEVICE_EXT_STRIDE_NUM_RANGES \
   1031 					0x80
   1032 #define MXC_CAP_DEVICE_LOG_MAX_STRIDE_SZ_RQ \
   1033 					0x1f
   1034 	uint8_t			log_min_stride_sz_rq; /* 5 bits */
   1035 #define MXC_CAP_DEVICE_LOG_MIN_STRIDE_SZ_RQ \
   1036 					0x1f
   1037 	uint8_t			log_max_stride_sz_sq; /* 5 bits */
   1038 #define MXC_CAP_DEVICE_LOG_MAX_STRIDE_SZ_SQ \
   1039 					0x1f
   1040 	uint8_t			log_min_stride_sz_sq; /* 5 bits */
   1041 #define MXC_CAP_DEVICE_LOG_MIN_STRIDE_SZ_SQ \
   1042 					0x1f
   1043 
   1044 	uint8_t			log_max_hairpin_queues;
   1045 #define MXC_CAP_DEVICE_HAIRPIN		0x80
   1046 #define MXC_CAP_DEVICE_LOG_MAX_HAIRPIN_QUEUES \
   1047 					0x1f
   1048 	uint8_t			log_min_hairpin_queues;
   1049 #define MXC_CAP_DEVICE_LOG_MIN_HAIRPIN_QUEUES \
   1050 					0x1f
   1051 	uint8_t			log_max_hairpin_num_packets;
   1052 #define MXC_CAP_DEVICE_LOG_MAX_HAIRPIN_NUM_PACKETS \
   1053 					0x1f
   1054 	uint8_t			log_max_mq_sz;
   1055 #define MXC_CAP_DEVICE_LOG_MAX_WQ_SZ \
   1056 					0x1f
   1057 
   1058 	uint8_t			log_min_hairpin_wq_data_sz;
   1059 #define MXC_CAP_DEVICE_NIC_VPORT_CHANGE_EVENT \
   1060 					0x80
   1061 #define MXC_CAP_DEVICE_DISABLE_LOCAL_LB_UC \
   1062 					0x40
   1063 #define MXC_CAP_DEVICE_DISABLE_LOCAL_LB_MC \
   1064 					0x20
   1065 #define MCX_CAP_DEVICE_LOG_MIN_HAIRPIN_WQ_DATA_SZ \
   1066 					0x1f
   1067 	uint8_t			log_max_vlan_list;
   1068 #define MXC_CAP_DEVICE_SYSTEM_IMAGE_GUID_MODIFIABLE \
   1069 					0x80
   1070 #define MXC_CAP_DEVICE_LOG_MAX_VLAN_LIST \
   1071 					0x1f
   1072 	uint8_t			log_max_current_mc_list;
   1073 #define MXC_CAP_DEVICE_LOG_MAX_CURRENT_MC_LIST \
   1074 					0x1f
   1075 	uint8_t			log_max_current_uc_list;
   1076 #define MXC_CAP_DEVICE_LOG_MAX_CURRENT_UC_LIST \
   1077 					0x1f
   1078 
   1079 	uint8_t			__reserved__[4];
   1080 
   1081 	uint32_t		create_qp_start_hint; /* 24 bits */
   1082 
   1083 	uint8_t			log_max_uctx; /* 5 bits */
   1084 #define MXC_CAP_DEVICE_LOG_MAX_UCTX	0x1f
   1085 	uint8_t			log_max_umem; /* 5 bits */
   1086 #define MXC_CAP_DEVICE_LOG_MAX_UMEM	0x1f
   1087 	uint16_t		max_num_eqs;
   1088 
   1089 	uint8_t			log_max_l2_table; /* 5 bits */
   1090 #define MXC_CAP_DEVICE_LOG_MAX_L2_TABLE	0x1f
   1091 	uint8_t			__reserved__[1];
   1092 	uint16_t		log_uar_page_sz;
   1093 
   1094 	uint8_t			__reserved__[8];
   1095 
   1096 	uint32_t		device_frequency_mhz;
   1097 	uint32_t		device_frequency_khz;
   1098 } __packed __aligned(8);
   1099 
   1100 CTASSERT(offsetof(struct mcx_cap_device, max_indirection) == 0x20);
   1101 CTASSERT(offsetof(struct mcx_cap_device, flags1) == 0x2c);
   1102 CTASSERT(offsetof(struct mcx_cap_device, flags2) == 0x30);
   1103 CTASSERT(offsetof(struct mcx_cap_device, snapshot_log_max_msg) == 0x38);
   1104 CTASSERT(offsetof(struct mcx_cap_device, flags5) == 0x40);
   1105 CTASSERT(offsetof(struct mcx_cap_device, flags7) == 0x4c);
   1106 CTASSERT(offsetof(struct mcx_cap_device, device_frequency_mhz) == 0x98);
   1107 CTASSERT(offsetof(struct mcx_cap_device, device_frequency_khz) == 0x9c);
   1108 CTASSERT(sizeof(struct mcx_cap_device) <= MCX_CMDQ_MAILBOX_DATASIZE);
   1109 
   1110 struct mcx_cmd_set_driver_version_in {
   1111 	uint16_t		cmd_opcode;
   1112 	uint8_t			cmd_reserved0[4];
   1113 	uint16_t		cmd_op_mod;
   1114 	uint8_t			cmd_reserved1[8];
   1115 } __packed __aligned(4);
   1116 
   1117 struct mcx_cmd_set_driver_version_out {
   1118 	uint8_t			cmd_status;
   1119 	uint8_t			cmd_reserved0[3];
   1120 	uint32_t		cmd_syndrome;
   1121 	uint8_t			cmd_reserved1[8];
   1122 } __packed __aligned(4);
   1123 
   1124 struct mcx_cmd_set_driver_version {
   1125 	uint8_t			cmd_driver_version[64];
   1126 } __packed __aligned(8);
   1127 
   1128 struct mcx_cmd_modify_nic_vport_context_in {
   1129 	uint16_t		cmd_opcode;
   1130 	uint8_t			cmd_reserved0[4];
   1131 	uint16_t		cmd_op_mod;
   1132 	uint8_t			cmd_reserved1[4];
   1133 	uint32_t		cmd_field_select;
   1134 #define MCX_CMD_MODIFY_NIC_VPORT_CONTEXT_FIELD_ADDR	0x04
   1135 #define MCX_CMD_MODIFY_NIC_VPORT_CONTEXT_FIELD_PROMISC	0x10
   1136 #define MCX_CMD_MODIFY_NIC_VPORT_CONTEXT_FIELD_MTU	0x40
   1137 } __packed __aligned(4);
   1138 
   1139 struct mcx_cmd_modify_nic_vport_context_out {
   1140 	uint8_t			cmd_status;
   1141 	uint8_t			cmd_reserved0[3];
   1142 	uint32_t		cmd_syndrome;
   1143 	uint8_t			cmd_reserved1[8];
   1144 } __packed __aligned(4);
   1145 
   1146 struct mcx_cmd_query_nic_vport_context_in {
   1147 	uint16_t		cmd_opcode;
   1148 	uint8_t			cmd_reserved0[4];
   1149 	uint16_t		cmd_op_mod;
   1150 	uint8_t			cmd_reserved1[4];
   1151 	uint8_t			cmd_allowed_list_type;
   1152 	uint8_t			cmd_reserved2[3];
   1153 } __packed __aligned(4);
   1154 
   1155 struct mcx_cmd_query_nic_vport_context_out {
   1156 	uint8_t			cmd_status;
   1157 	uint8_t			cmd_reserved0[3];
   1158 	uint32_t		cmd_syndrome;
   1159 	uint8_t			cmd_reserved1[8];
   1160 } __packed __aligned(4);
   1161 
   1162 struct mcx_nic_vport_ctx {
   1163 	uint32_t		vp_min_wqe_inline_mode;
   1164 	uint8_t			vp_reserved0[32];
   1165 	uint32_t		vp_mtu;
   1166 	uint8_t			vp_reserved1[200];
   1167 	uint16_t		vp_flags;
   1168 #define MCX_NIC_VPORT_CTX_LIST_UC_MAC			(0)
   1169 #define MCX_NIC_VPORT_CTX_LIST_MC_MAC			(1 << 24)
   1170 #define MCX_NIC_VPORT_CTX_LIST_VLAN			(2 << 24)
   1171 #define MCX_NIC_VPORT_CTX_PROMISC_ALL			(1 << 13)
   1172 #define MCX_NIC_VPORT_CTX_PROMISC_MCAST			(1 << 14)
   1173 #define MCX_NIC_VPORT_CTX_PROMISC_UCAST			(1 << 15)
   1174 	uint16_t		vp_allowed_list_size;
   1175 	uint64_t		vp_perm_addr;
   1176 	uint8_t			vp_reserved2[4];
   1177 	/* allowed list follows */
   1178 } __packed __aligned(4);
   1179 
   1180 struct mcx_counter {
   1181 	uint64_t		packets;
   1182 	uint64_t		octets;
   1183 } __packed __aligned(4);
   1184 
   1185 struct mcx_nic_vport_counters {
   1186 	struct mcx_counter	rx_err;
   1187 	struct mcx_counter	tx_err;
   1188 	uint8_t			reserved0[64]; /* 0x30 */
   1189 	struct mcx_counter	rx_bcast;
   1190 	struct mcx_counter	tx_bcast;
   1191 	struct mcx_counter	rx_ucast;
   1192 	struct mcx_counter	tx_ucast;
   1193 	struct mcx_counter	rx_mcast;
   1194 	struct mcx_counter	tx_mcast;
   1195 	uint8_t			reserved1[0x210 - 0xd0];
   1196 } __packed __aligned(4);
   1197 
   1198 struct mcx_cmd_query_vport_counters_in {
   1199 	uint16_t		cmd_opcode;
   1200 	uint8_t			cmd_reserved0[4];
   1201 	uint16_t		cmd_op_mod;
   1202 	uint8_t			cmd_reserved1[8];
   1203 } __packed __aligned(4);
   1204 
   1205 struct mcx_cmd_query_vport_counters_mb_in {
   1206 	uint8_t			cmd_reserved0[8];
   1207 	uint8_t			cmd_clear;
   1208 	uint8_t			cmd_reserved1[7];
   1209 } __packed __aligned(4);
   1210 
   1211 struct mcx_cmd_query_vport_counters_out {
   1212 	uint8_t			cmd_status;
   1213 	uint8_t			cmd_reserved0[3];
   1214 	uint32_t		cmd_syndrome;
   1215 	uint8_t			cmd_reserved1[8];
   1216 } __packed __aligned(4);
   1217 
   1218 struct mcx_cmd_query_flow_counter_in {
   1219 	uint16_t		cmd_opcode;
   1220 	uint8_t			cmd_reserved0[4];
   1221 	uint16_t		cmd_op_mod;
   1222 	uint8_t			cmd_reserved1[8];
   1223 } __packed __aligned(4);
   1224 
   1225 struct mcx_cmd_query_flow_counter_mb_in {
   1226 	uint8_t			cmd_reserved0[8];
   1227 	uint8_t			cmd_clear;
   1228 	uint8_t			cmd_reserved1[5];
   1229 	uint16_t		cmd_flow_counter_id;
   1230 } __packed __aligned(4);
   1231 
   1232 struct mcx_cmd_query_flow_counter_out {
   1233 	uint8_t			cmd_status;
   1234 	uint8_t			cmd_reserved0[3];
   1235 	uint32_t		cmd_syndrome;
   1236 	uint8_t			cmd_reserved1[8];
   1237 } __packed __aligned(4);
   1238 
   1239 struct mcx_cmd_alloc_uar_in {
   1240 	uint16_t		cmd_opcode;
   1241 	uint8_t			cmd_reserved0[4];
   1242 	uint16_t		cmd_op_mod;
   1243 	uint8_t			cmd_reserved1[8];
   1244 } __packed __aligned(4);
   1245 
   1246 struct mcx_cmd_alloc_uar_out {
   1247 	uint8_t			cmd_status;
   1248 	uint8_t			cmd_reserved0[3];
   1249 	uint32_t		cmd_syndrome;
   1250 	uint32_t		cmd_uar;
   1251 	uint8_t			cmd_reserved1[4];
   1252 } __packed __aligned(4);
   1253 
   1254 struct mcx_cmd_query_special_ctx_in {
   1255 	uint16_t		cmd_opcode;
   1256 	uint8_t			cmd_reserved0[4];
   1257 	uint16_t		cmd_op_mod;
   1258 	uint8_t			cmd_reserved1[8];
   1259 } __packed __aligned(4);
   1260 
   1261 struct mcx_cmd_query_special_ctx_out {
   1262 	uint8_t			cmd_status;
   1263 	uint8_t			cmd_reserved0[3];
   1264 	uint32_t		cmd_syndrome;
   1265 	uint8_t			cmd_reserved1[4];
   1266 	uint32_t		cmd_resd_lkey;
   1267 } __packed __aligned(4);
   1268 
   1269 struct mcx_eq_ctx {
   1270 	uint32_t		eq_status;
   1271 #define MCX_EQ_CTX_STATE_SHIFT		8
   1272 #define MCX_EQ_CTX_STATE_MASK		(0xf << MCX_EQ_CTX_STATE_SHIFT)
   1273 #define MCX_EQ_CTX_STATE_ARMED		0x9
   1274 #define MCX_EQ_CTX_STATE_FIRED		0xa
   1275 #define MCX_EQ_CTX_OI_SHIFT		17
   1276 #define MCX_EQ_CTX_OI			(1 << MCX_EQ_CTX_OI_SHIFT)
   1277 #define MCX_EQ_CTX_EC_SHIFT		18
   1278 #define MCX_EQ_CTX_EC			(1 << MCX_EQ_CTX_EC_SHIFT)
   1279 #define MCX_EQ_CTX_STATUS_SHIFT		28
   1280 #define MCX_EQ_CTX_STATUS_MASK		(0xf << MCX_EQ_CTX_STATUS_SHIFT)
   1281 #define MCX_EQ_CTX_STATUS_OK		0x0
   1282 #define MCX_EQ_CTX_STATUS_EQ_WRITE_FAILURE 0xa
   1283 	uint32_t		eq_reserved1;
   1284 	uint32_t		eq_page_offset;
   1285 #define MCX_EQ_CTX_PAGE_OFFSET_SHIFT	5
   1286 	uint32_t		eq_uar_size;
   1287 #define MCX_EQ_CTX_UAR_PAGE_MASK	0xffffff
   1288 #define MCX_EQ_CTX_LOG_EQ_SIZE_SHIFT	24
   1289 	uint32_t		eq_reserved2;
   1290 	uint8_t			eq_reserved3[3];
   1291 	uint8_t			eq_intr;
   1292 	uint32_t		eq_log_page_size;
   1293 #define MCX_EQ_CTX_LOG_PAGE_SIZE_SHIFT	24
   1294 	uint32_t		eq_reserved4[3];
   1295 	uint32_t		eq_consumer_counter;
   1296 	uint32_t		eq_producer_counter;
   1297 #define MCX_EQ_CTX_COUNTER_MASK		0xffffff
   1298 	uint32_t		eq_reserved5[4];
   1299 } __packed __aligned(4);
   1300 
   1301 CTASSERT(sizeof(struct mcx_eq_ctx) == 64);
   1302 
   1303 struct mcx_cmd_create_eq_in {
   1304 	uint16_t		cmd_opcode;
   1305 	uint8_t			cmd_reserved0[4];
   1306 	uint16_t		cmd_op_mod;
   1307 	uint8_t			cmd_reserved1[8];
   1308 } __packed __aligned(4);
   1309 
   1310 struct mcx_cmd_create_eq_mb_in {
   1311 	struct mcx_eq_ctx	cmd_eq_ctx;
   1312 	uint8_t			cmd_reserved0[8];
   1313 	uint64_t		cmd_event_bitmask;
   1314 #define MCX_EVENT_TYPE_COMPLETION	0x00
   1315 #define MCX_EVENT_TYPE_CQ_ERROR		0x04
   1316 #define MCX_EVENT_TYPE_INTERNAL_ERROR	0x08
   1317 #define MCX_EVENT_TYPE_PORT_CHANGE	0x09
   1318 #define MCX_EVENT_TYPE_CMD_COMPLETION	0x0a
   1319 #define MCX_EVENT_TYPE_PAGE_REQUEST	0x0b
   1320 #define MCX_EVENT_TYPE_LAST_WQE		0x13
   1321 	uint8_t			cmd_reserved1[176];
   1322 } __packed __aligned(4);
   1323 
   1324 struct mcx_cmd_create_eq_out {
   1325 	uint8_t			cmd_status;
   1326 	uint8_t			cmd_reserved0[3];
   1327 	uint32_t		cmd_syndrome;
   1328 	uint32_t		cmd_eqn;
   1329 	uint8_t			cmd_reserved1[4];
   1330 } __packed __aligned(4);
   1331 
   1332 struct mcx_cmd_query_eq_in {
   1333 	uint16_t		cmd_opcode;
   1334 	uint8_t			cmd_reserved0[4];
   1335 	uint16_t		cmd_op_mod;
   1336 	uint32_t		cmd_eqn;
   1337 	uint8_t			cmd_reserved1[4];
   1338 } __packed __aligned(4);
   1339 
   1340 struct mcx_cmd_query_eq_out {
   1341 	uint8_t			cmd_status;
   1342 	uint8_t			cmd_reserved0[3];
   1343 	uint32_t		cmd_syndrome;
   1344 	uint8_t			cmd_reserved1[8];
   1345 } __packed __aligned(4);
   1346 
   1347 struct mcx_eq_entry {
   1348 	uint8_t			eq_reserved1;
   1349 	uint8_t			eq_event_type;
   1350 	uint8_t			eq_reserved2;
   1351 	uint8_t			eq_event_sub_type;
   1352 
   1353 	uint8_t			eq_reserved3[28];
   1354 	uint32_t		eq_event_data[7];
   1355 	uint8_t			eq_reserved4[2];
   1356 	uint8_t			eq_signature;
   1357 	uint8_t			eq_owner;
   1358 #define MCX_EQ_ENTRY_OWNER_INIT			1
   1359 } __packed __aligned(4);
   1360 
   1361 CTASSERT(sizeof(struct mcx_eq_entry) == 64);
   1362 
   1363 struct mcx_cmd_alloc_pd_in {
   1364 	uint16_t		cmd_opcode;
   1365 	uint8_t			cmd_reserved0[4];
   1366 	uint16_t		cmd_op_mod;
   1367 	uint8_t			cmd_reserved1[8];
   1368 } __packed __aligned(4);
   1369 
   1370 struct mcx_cmd_alloc_pd_out {
   1371 	uint8_t			cmd_status;
   1372 	uint8_t			cmd_reserved0[3];
   1373 	uint32_t		cmd_syndrome;
   1374 	uint32_t		cmd_pd;
   1375 	uint8_t			cmd_reserved1[4];
   1376 } __packed __aligned(4);
   1377 
   1378 struct mcx_cmd_alloc_td_in {
   1379 	uint16_t		cmd_opcode;
   1380 	uint8_t			cmd_reserved0[4];
   1381 	uint16_t		cmd_op_mod;
   1382 	uint8_t			cmd_reserved1[8];
   1383 } __packed __aligned(4);
   1384 
   1385 struct mcx_cmd_alloc_td_out {
   1386 	uint8_t			cmd_status;
   1387 	uint8_t			cmd_reserved0[3];
   1388 	uint32_t		cmd_syndrome;
   1389 	uint32_t		cmd_tdomain;
   1390 	uint8_t			cmd_reserved1[4];
   1391 } __packed __aligned(4);
   1392 
   1393 struct mcx_cmd_create_tir_in {
   1394 	uint16_t		cmd_opcode;
   1395 	uint8_t			cmd_reserved0[4];
   1396 	uint16_t		cmd_op_mod;
   1397 	uint8_t			cmd_reserved1[8];
   1398 } __packed __aligned(4);
   1399 
   1400 struct mcx_cmd_create_tir_mb_in {
   1401 	uint8_t			cmd_reserved0[20];
   1402 	uint32_t		cmd_disp_type;
   1403 #define MCX_TIR_CTX_DISP_TYPE_DIRECT	0
   1404 #define MCX_TIR_CTX_DISP_TYPE_INDIRECT	1
   1405 #define MCX_TIR_CTX_DISP_TYPE_SHIFT	28
   1406 	uint8_t			cmd_reserved1[8];
   1407 	uint32_t		cmd_lro;
   1408 	uint8_t			cmd_reserved2[8];
   1409 	uint32_t		cmd_inline_rqn;
   1410 	uint32_t		cmd_indir_table;
   1411 	uint32_t		cmd_tdomain;
   1412 #define MCX_TIR_CTX_HASH_TOEPLITZ	2
   1413 #define MCX_TIR_CTX_HASH_SHIFT		28
   1414 	uint8_t			cmd_rx_hash_key[40];
   1415 	uint32_t		cmd_rx_hash_sel_outer;
   1416 #define MCX_TIR_CTX_HASH_SEL_SRC_IP	(1 << 0)
   1417 #define MCX_TIR_CTX_HASH_SEL_DST_IP	(1 << 1)
   1418 #define MCX_TIR_CTX_HASH_SEL_SPORT	(1 << 2)
   1419 #define MCX_TIR_CTX_HASH_SEL_DPORT	(1 << 3)
   1420 #define MCX_TIR_CTX_HASH_SEL_IPV4	(0 << 31)
   1421 #define MCX_TIR_CTX_HASH_SEL_IPV6	(1 << 31)
   1422 #define MCX_TIR_CTX_HASH_SEL_TCP	(0 << 30)
   1423 #define MCX_TIR_CTX_HASH_SEL_UDP	(1 << 30)
   1424 	uint32_t		cmd_rx_hash_sel_inner;
   1425 	uint8_t			cmd_reserved3[152];
   1426 } __packed __aligned(4);
   1427 
   1428 struct mcx_cmd_create_tir_out {
   1429 	uint8_t			cmd_status;
   1430 	uint8_t			cmd_reserved0[3];
   1431 	uint32_t		cmd_syndrome;
   1432 	uint32_t		cmd_tirn;
   1433 	uint8_t			cmd_reserved1[4];
   1434 } __packed __aligned(4);
   1435 
   1436 struct mcx_cmd_destroy_tir_in {
   1437 	uint16_t		cmd_opcode;
   1438 	uint8_t			cmd_reserved0[4];
   1439 	uint16_t		cmd_op_mod;
   1440 	uint32_t		cmd_tirn;
   1441 	uint8_t			cmd_reserved1[4];
   1442 } __packed __aligned(4);
   1443 
   1444 struct mcx_cmd_destroy_tir_out {
   1445 	uint8_t			cmd_status;
   1446 	uint8_t			cmd_reserved0[3];
   1447 	uint32_t		cmd_syndrome;
   1448 	uint8_t			cmd_reserved1[8];
   1449 } __packed __aligned(4);
   1450 
   1451 struct mcx_cmd_create_tis_in {
   1452 	uint16_t		cmd_opcode;
   1453 	uint8_t			cmd_reserved0[4];
   1454 	uint16_t		cmd_op_mod;
   1455 	uint8_t			cmd_reserved1[8];
   1456 } __packed __aligned(4);
   1457 
   1458 struct mcx_cmd_create_tis_mb_in {
   1459 	uint8_t			cmd_reserved[16];
   1460 	uint32_t		cmd_prio;
   1461 	uint8_t			cmd_reserved1[32];
   1462 	uint32_t		cmd_tdomain;
   1463 	uint8_t			cmd_reserved2[120];
   1464 } __packed __aligned(4);
   1465 
   1466 struct mcx_cmd_create_tis_out {
   1467 	uint8_t			cmd_status;
   1468 	uint8_t			cmd_reserved0[3];
   1469 	uint32_t		cmd_syndrome;
   1470 	uint32_t		cmd_tisn;
   1471 	uint8_t			cmd_reserved1[4];
   1472 } __packed __aligned(4);
   1473 
   1474 struct mcx_cmd_destroy_tis_in {
   1475 	uint16_t		cmd_opcode;
   1476 	uint8_t			cmd_reserved0[4];
   1477 	uint16_t		cmd_op_mod;
   1478 	uint32_t		cmd_tisn;
   1479 	uint8_t			cmd_reserved1[4];
   1480 } __packed __aligned(4);
   1481 
   1482 struct mcx_cmd_destroy_tis_out {
   1483 	uint8_t			cmd_status;
   1484 	uint8_t			cmd_reserved0[3];
   1485 	uint32_t		cmd_syndrome;
   1486 	uint8_t			cmd_reserved1[8];
   1487 } __packed __aligned(4);
   1488 
   1489 struct mcx_cmd_create_rqt_in {
   1490 	uint16_t		cmd_opcode;
   1491 	uint8_t			cmd_reserved0[4];
   1492 	uint16_t		cmd_op_mod;
   1493 	uint8_t			cmd_reserved1[8];
   1494 } __packed __aligned(4);
   1495 
   1496 struct mcx_rqt_ctx {
   1497 	uint8_t			cmd_reserved0[20];
   1498 	uint16_t		cmd_reserved1;
   1499 	uint16_t		cmd_rqt_max_size;
   1500 	uint16_t		cmd_reserved2;
   1501 	uint16_t		cmd_rqt_actual_size;
   1502 	uint8_t			cmd_reserved3[212];
   1503 } __packed __aligned(4);
   1504 
   1505 struct mcx_cmd_create_rqt_mb_in {
   1506 	uint8_t			cmd_reserved0[16];
   1507 	struct mcx_rqt_ctx	cmd_rqt;
   1508 } __packed __aligned(4);
   1509 
   1510 struct mcx_cmd_create_rqt_out {
   1511 	uint8_t			cmd_status;
   1512 	uint8_t			cmd_reserved0[3];
   1513 	uint32_t		cmd_syndrome;
   1514 	uint32_t		cmd_rqtn;
   1515 	uint8_t			cmd_reserved1[4];
   1516 } __packed __aligned(4);
   1517 
   1518 struct mcx_cmd_destroy_rqt_in {
   1519 	uint16_t		cmd_opcode;
   1520 	uint8_t			cmd_reserved0[4];
   1521 	uint16_t		cmd_op_mod;
   1522 	uint32_t		cmd_rqtn;
   1523 	uint8_t			cmd_reserved1[4];
   1524 } __packed __aligned(4);
   1525 
   1526 struct mcx_cmd_destroy_rqt_out {
   1527 	uint8_t			cmd_status;
   1528 	uint8_t			cmd_reserved0[3];
   1529 	uint32_t		cmd_syndrome;
   1530 	uint8_t			cmd_reserved1[8];
   1531 } __packed __aligned(4);
   1532 
   1533 struct mcx_cq_ctx {
   1534 	uint32_t		cq_status;
   1535 #define MCX_CQ_CTX_STATUS_SHIFT		28
   1536 #define MCX_CQ_CTX_STATUS_MASK		(0xf << MCX_CQ_CTX_STATUS_SHIFT)
   1537 #define MCX_CQ_CTX_STATUS_OK		0x0
   1538 #define MCX_CQ_CTX_STATUS_OVERFLOW	0x9
   1539 #define MCX_CQ_CTX_STATUS_WRITE_FAIL	0xa
   1540 #define MCX_CQ_CTX_STATE_SHIFT		8
   1541 #define MCX_CQ_CTX_STATE_MASK		(0xf << MCX_CQ_CTX_STATE_SHIFT)
   1542 #define MCX_CQ_CTX_STATE_SOLICITED	0x6
   1543 #define MCX_CQ_CTX_STATE_ARMED		0x9
   1544 #define MCX_CQ_CTX_STATE_FIRED		0xa
   1545 	uint32_t		cq_reserved1;
   1546 	uint32_t		cq_page_offset;
   1547 	uint32_t		cq_uar_size;
   1548 #define MCX_CQ_CTX_UAR_PAGE_MASK	0xffffff
   1549 #define MCX_CQ_CTX_LOG_CQ_SIZE_SHIFT	24
   1550 	uint32_t		cq_period_max_count;
   1551 #define MCX_CQ_CTX_PERIOD_SHIFT		16
   1552 	uint32_t		cq_eqn;
   1553 	uint32_t		cq_log_page_size;
   1554 #define MCX_CQ_CTX_LOG_PAGE_SIZE_SHIFT	24
   1555 	uint32_t		cq_reserved2;
   1556 	uint32_t		cq_last_notified;
   1557 	uint32_t		cq_last_solicit;
   1558 	uint32_t		cq_consumer_counter;
   1559 	uint32_t		cq_producer_counter;
   1560 	uint8_t			cq_reserved3[8];
   1561 	uint64_t		cq_doorbell;
   1562 } __packed __aligned(4);
   1563 
   1564 CTASSERT(sizeof(struct mcx_cq_ctx) == 64);
   1565 
   1566 struct mcx_cmd_create_cq_in {
   1567 	uint16_t		cmd_opcode;
   1568 	uint8_t			cmd_reserved0[4];
   1569 	uint16_t		cmd_op_mod;
   1570 	uint8_t			cmd_reserved1[8];
   1571 } __packed __aligned(4);
   1572 
   1573 struct mcx_cmd_create_cq_mb_in {
   1574 	struct mcx_cq_ctx	cmd_cq_ctx;
   1575 	uint8_t			cmd_reserved1[192];
   1576 } __packed __aligned(4);
   1577 
   1578 struct mcx_cmd_create_cq_out {
   1579 	uint8_t			cmd_status;
   1580 	uint8_t			cmd_reserved0[3];
   1581 	uint32_t		cmd_syndrome;
   1582 	uint32_t		cmd_cqn;
   1583 	uint8_t			cmd_reserved1[4];
   1584 } __packed __aligned(4);
   1585 
   1586 struct mcx_cmd_destroy_cq_in {
   1587 	uint16_t		cmd_opcode;
   1588 	uint8_t			cmd_reserved0[4];
   1589 	uint16_t		cmd_op_mod;
   1590 	uint32_t		cmd_cqn;
   1591 	uint8_t			cmd_reserved1[4];
   1592 } __packed __aligned(4);
   1593 
   1594 struct mcx_cmd_destroy_cq_out {
   1595 	uint8_t			cmd_status;
   1596 	uint8_t			cmd_reserved0[3];
   1597 	uint32_t		cmd_syndrome;
   1598 	uint8_t			cmd_reserved1[8];
   1599 } __packed __aligned(4);
   1600 
   1601 struct mcx_cmd_query_cq_in {
   1602 	uint16_t		cmd_opcode;
   1603 	uint8_t			cmd_reserved0[4];
   1604 	uint16_t		cmd_op_mod;
   1605 	uint32_t		cmd_cqn;
   1606 	uint8_t			cmd_reserved1[4];
   1607 } __packed __aligned(4);
   1608 
   1609 struct mcx_cmd_query_cq_out {
   1610 	uint8_t			cmd_status;
   1611 	uint8_t			cmd_reserved0[3];
   1612 	uint32_t		cmd_syndrome;
   1613 	uint8_t			cmd_reserved1[8];
   1614 } __packed __aligned(4);
   1615 
   1616 struct mcx_cq_entry {
   1617 	uint32_t		__reserved__;
   1618 	uint32_t		cq_lro;
   1619 	uint32_t		cq_lro_ack_seq_num;
   1620 	uint32_t		cq_rx_hash;
   1621 	uint8_t			cq_rx_hash_type;
   1622 	uint8_t			cq_ml_path;
   1623 	uint16_t		__reserved__;
   1624 	uint32_t		cq_checksum;
   1625 	uint32_t		__reserved__;
   1626 	uint32_t		cq_flags;
   1627 #define MCX_CQ_ENTRY_FLAGS_L4_OK		(1 << 26)
   1628 #define MCX_CQ_ENTRY_FLAGS_L3_OK		(1 << 25)
   1629 #define MCX_CQ_ENTRY_FLAGS_L2_OK		(1 << 24)
   1630 #define MCX_CQ_ENTRY_FLAGS_CV			(1 << 16)
   1631 #define MCX_CQ_ENTRY_FLAGS_VLAN_MASK		(0xffff)
   1632 
   1633 	uint32_t		cq_lro_srqn;
   1634 	uint32_t		__reserved__[2];
   1635 	uint32_t		cq_byte_cnt;
   1636 	uint64_t		cq_timestamp;
   1637 	uint8_t			cq_rx_drops;
   1638 	uint8_t			cq_flow_tag[3];
   1639 	uint16_t		cq_wqe_count;
   1640 	uint8_t			cq_signature;
   1641 	uint8_t			cq_opcode_owner;
   1642 #define MCX_CQ_ENTRY_FLAG_OWNER			(1 << 0)
   1643 #define MCX_CQ_ENTRY_FLAG_SE			(1 << 1)
   1644 #define MCX_CQ_ENTRY_FORMAT_SHIFT		2
   1645 #define MCX_CQ_ENTRY_OPCODE_SHIFT		4
   1646 
   1647 #define MCX_CQ_ENTRY_FORMAT_NO_INLINE		0
   1648 #define MCX_CQ_ENTRY_FORMAT_INLINE_32		1
   1649 #define MCX_CQ_ENTRY_FORMAT_INLINE_64		2
   1650 #define MCX_CQ_ENTRY_FORMAT_COMPRESSED		3
   1651 
   1652 #define MCX_CQ_ENTRY_OPCODE_REQ			0
   1653 #define MCX_CQ_ENTRY_OPCODE_SEND		2
   1654 #define MCX_CQ_ENTRY_OPCODE_REQ_ERR		13
   1655 #define MCX_CQ_ENTRY_OPCODE_SEND_ERR		14
   1656 #define MCX_CQ_ENTRY_OPCODE_INVALID		15
   1657 
   1658 } __packed __aligned(4);
   1659 
   1660 CTASSERT(sizeof(struct mcx_cq_entry) == 64);
   1661 
   1662 struct mcx_cq_doorbell {
   1663 	uint32_t		 db_update_ci;
   1664 	uint32_t		 db_arm_ci;
   1665 #define MCX_CQ_DOORBELL_ARM_CMD_SN_SHIFT	28
   1666 #define MCX_CQ_DOORBELL_ARM_CMD			(1 << 24)
   1667 #define MCX_CQ_DOORBELL_ARM_CI_MASK		(0xffffff)
   1668 } __packed __aligned(8);
   1669 
   1670 struct mcx_wq_ctx {
   1671 	uint8_t			 wq_type;
   1672 #define MCX_WQ_CTX_TYPE_CYCLIC			(1 << 4)
   1673 #define MCX_WQ_CTX_TYPE_SIGNATURE		(1 << 3)
   1674 	uint8_t			 wq_reserved0[5];
   1675 	uint16_t		 wq_lwm;
   1676 	uint32_t		 wq_pd;
   1677 	uint32_t		 wq_uar_page;
   1678 	uint64_t		 wq_doorbell;
   1679 	uint32_t		 wq_hw_counter;
   1680 	uint32_t		 wq_sw_counter;
   1681 	uint16_t		 wq_log_stride;
   1682 	uint8_t			 wq_log_page_sz;
   1683 	uint8_t			 wq_log_size;
   1684 	uint8_t			 wq_reserved1[156];
   1685 } __packed __aligned(4);
   1686 
   1687 CTASSERT(sizeof(struct mcx_wq_ctx) == 0xC0);
   1688 
   1689 struct mcx_sq_ctx {
   1690 	uint32_t		sq_flags;
   1691 #define MCX_SQ_CTX_RLKEY			(1U << 31)
   1692 #define MCX_SQ_CTX_FRE_SHIFT			(1 << 29)
   1693 #define MCX_SQ_CTX_FLUSH_IN_ERROR		(1 << 28)
   1694 #define MCX_SQ_CTX_MIN_WQE_INLINE_SHIFT		24
   1695 #define MCX_SQ_CTX_STATE_SHIFT			20
   1696 #define MCX_SQ_CTX_STATE_MASK			(0xf << 20)
   1697 #define MCX_SQ_CTX_STATE_RST			0
   1698 #define MCX_SQ_CTX_STATE_RDY			1
   1699 #define MCX_SQ_CTX_STATE_ERR			3
   1700 	uint32_t		sq_user_index;
   1701 	uint32_t		sq_cqn;
   1702 	uint32_t		sq_reserved1[5];
   1703 	uint32_t		sq_tis_lst_sz;
   1704 #define MCX_SQ_CTX_TIS_LST_SZ_SHIFT		16
   1705 	uint32_t		sq_reserved2[2];
   1706 	uint32_t		sq_tis_num;
   1707 	struct mcx_wq_ctx	sq_wq;
   1708 } __packed __aligned(4);
   1709 
   1710 struct mcx_sq_entry_seg {
   1711 	uint32_t		sqs_byte_count;
   1712 	uint32_t		sqs_lkey;
   1713 	uint64_t		sqs_addr;
   1714 } __packed __aligned(4);
   1715 
   1716 struct mcx_sq_entry {
   1717 	/* control segment */
   1718 	uint32_t		sqe_opcode_index;
   1719 #define MCX_SQE_WQE_INDEX_SHIFT			8
   1720 #define MCX_SQE_WQE_OPCODE_NOP			0x00
   1721 #define MCX_SQE_WQE_OPCODE_SEND			0x0a
   1722 	uint32_t		sqe_ds_sq_num;
   1723 #define MCX_SQE_SQ_NUM_SHIFT			8
   1724 	uint32_t		sqe_signature;
   1725 #define MCX_SQE_SIGNATURE_SHIFT			24
   1726 #define MCX_SQE_SOLICITED_EVENT			0x02
   1727 #define MCX_SQE_CE_CQE_ON_ERR			0x00
   1728 #define MCX_SQE_CE_CQE_FIRST_ERR		0x04
   1729 #define MCX_SQE_CE_CQE_ALWAYS			0x08
   1730 #define MCX_SQE_CE_CQE_SOLICIT			0x0C
   1731 #define MCX_SQE_FM_NO_FENCE			0x00
   1732 #define MCX_SQE_FM_SMALL_FENCE			0x40
   1733 	uint32_t		sqe_mkey;
   1734 
   1735 	/* ethernet segment */
   1736 	uint32_t		sqe_reserved1;
   1737 	uint32_t		sqe_mss_csum;
   1738 #define MCX_SQE_L4_CSUM				(1 << 31)
   1739 #define MCX_SQE_L3_CSUM				(1 << 30)
   1740 	uint32_t		sqe_reserved2;
   1741 	uint16_t		sqe_inline_header_size;
   1742 	uint16_t		sqe_inline_headers[9];
   1743 
   1744 	/* data segment */
   1745 	struct mcx_sq_entry_seg sqe_segs[1];
   1746 } __packed __aligned(64);
   1747 
   1748 CTASSERT(sizeof(struct mcx_sq_entry) == 64);
   1749 
   1750 struct mcx_cmd_create_sq_in {
   1751 	uint16_t		cmd_opcode;
   1752 	uint8_t			cmd_reserved0[4];
   1753 	uint16_t		cmd_op_mod;
   1754 	uint8_t			cmd_reserved1[8];
   1755 } __packed __aligned(4);
   1756 
   1757 struct mcx_cmd_create_sq_out {
   1758 	uint8_t			cmd_status;
   1759 	uint8_t			cmd_reserved0[3];
   1760 	uint32_t		cmd_syndrome;
   1761 	uint32_t		cmd_sqn;
   1762 	uint8_t			cmd_reserved1[4];
   1763 } __packed __aligned(4);
   1764 
   1765 struct mcx_cmd_modify_sq_in {
   1766 	uint16_t		cmd_opcode;
   1767 	uint8_t			cmd_reserved0[4];
   1768 	uint16_t		cmd_op_mod;
   1769 	uint32_t		cmd_sq_state;
   1770 	uint8_t			cmd_reserved1[4];
   1771 } __packed __aligned(4);
   1772 
   1773 struct mcx_cmd_modify_sq_mb_in {
   1774 	uint32_t		cmd_modify_hi;
   1775 	uint32_t		cmd_modify_lo;
   1776 	uint8_t			cmd_reserved0[8];
   1777 	struct mcx_sq_ctx	cmd_sq_ctx;
   1778 } __packed __aligned(4);
   1779 
   1780 struct mcx_cmd_modify_sq_out {
   1781 	uint8_t			cmd_status;
   1782 	uint8_t			cmd_reserved0[3];
   1783 	uint32_t		cmd_syndrome;
   1784 	uint8_t			cmd_reserved1[8];
   1785 } __packed __aligned(4);
   1786 
   1787 struct mcx_cmd_destroy_sq_in {
   1788 	uint16_t		cmd_opcode;
   1789 	uint8_t			cmd_reserved0[4];
   1790 	uint16_t		cmd_op_mod;
   1791 	uint32_t		cmd_sqn;
   1792 	uint8_t			cmd_reserved1[4];
   1793 } __packed __aligned(4);
   1794 
   1795 struct mcx_cmd_destroy_sq_out {
   1796 	uint8_t			cmd_status;
   1797 	uint8_t			cmd_reserved0[3];
   1798 	uint32_t		cmd_syndrome;
   1799 	uint8_t			cmd_reserved1[8];
   1800 } __packed __aligned(4);
   1801 
   1802 
   1803 struct mcx_rq_ctx {
   1804 	uint32_t		rq_flags;
   1805 #define MCX_RQ_CTX_RLKEY			(1U << 31)
   1806 #define MCX_RQ_CTX_VLAN_STRIP_DIS		(1 << 28)
   1807 #define MCX_RQ_CTX_MEM_RQ_TYPE_SHIFT		24
   1808 #define MCX_RQ_CTX_STATE_SHIFT			20
   1809 #define MCX_RQ_CTX_STATE_MASK			(0xf << 20)
   1810 #define MCX_RQ_CTX_STATE_RST			0
   1811 #define MCX_RQ_CTX_STATE_RDY			1
   1812 #define MCX_RQ_CTX_STATE_ERR			3
   1813 #define MCX_RQ_CTX_FLUSH_IN_ERROR		(1 << 18)
   1814 	uint32_t		rq_user_index;
   1815 	uint32_t		rq_cqn;
   1816 	uint32_t		rq_reserved1;
   1817 	uint32_t		rq_rmpn;
   1818 	uint32_t		rq_reserved2[7];
   1819 	struct mcx_wq_ctx	rq_wq;
   1820 } __packed __aligned(4);
   1821 
   1822 struct mcx_rq_entry {
   1823 	uint32_t		rqe_byte_count;
   1824 	uint32_t		rqe_lkey;
   1825 	uint64_t		rqe_addr;
   1826 } __packed __aligned(16);
   1827 
   1828 struct mcx_cmd_create_rq_in {
   1829 	uint16_t		cmd_opcode;
   1830 	uint8_t			cmd_reserved0[4];
   1831 	uint16_t		cmd_op_mod;
   1832 	uint8_t			cmd_reserved1[8];
   1833 } __packed __aligned(4);
   1834 
   1835 struct mcx_cmd_create_rq_out {
   1836 	uint8_t			cmd_status;
   1837 	uint8_t			cmd_reserved0[3];
   1838 	uint32_t		cmd_syndrome;
   1839 	uint32_t		cmd_rqn;
   1840 	uint8_t			cmd_reserved1[4];
   1841 } __packed __aligned(4);
   1842 
   1843 struct mcx_cmd_modify_rq_in {
   1844 	uint16_t		cmd_opcode;
   1845 	uint8_t			cmd_reserved0[4];
   1846 	uint16_t		cmd_op_mod;
   1847 	uint32_t		cmd_rq_state;
   1848 	uint8_t			cmd_reserved1[4];
   1849 } __packed __aligned(4);
   1850 
   1851 struct mcx_cmd_modify_rq_mb_in {
   1852 	uint32_t		cmd_modify_hi;
   1853 	uint32_t		cmd_modify_lo;
   1854 	uint8_t			cmd_reserved0[8];
   1855 	struct mcx_rq_ctx	cmd_rq_ctx;
   1856 } __packed __aligned(4);
   1857 
   1858 struct mcx_cmd_modify_rq_out {
   1859 	uint8_t			cmd_status;
   1860 	uint8_t			cmd_reserved0[3];
   1861 	uint32_t		cmd_syndrome;
   1862 	uint8_t			cmd_reserved1[8];
   1863 } __packed __aligned(4);
   1864 
   1865 struct mcx_cmd_destroy_rq_in {
   1866 	uint16_t		cmd_opcode;
   1867 	uint8_t			cmd_reserved0[4];
   1868 	uint16_t		cmd_op_mod;
   1869 	uint32_t		cmd_rqn;
   1870 	uint8_t			cmd_reserved1[4];
   1871 } __packed __aligned(4);
   1872 
   1873 struct mcx_cmd_destroy_rq_out {
   1874 	uint8_t			cmd_status;
   1875 	uint8_t			cmd_reserved0[3];
   1876 	uint32_t		cmd_syndrome;
   1877 	uint8_t			cmd_reserved1[8];
   1878 } __packed __aligned(4);
   1879 
   1880 struct mcx_cmd_create_flow_table_in {
   1881 	uint16_t		cmd_opcode;
   1882 	uint8_t			cmd_reserved0[4];
   1883 	uint16_t		cmd_op_mod;
   1884 	uint8_t			cmd_reserved1[8];
   1885 } __packed __aligned(4);
   1886 
   1887 struct mcx_flow_table_ctx {
   1888 	uint8_t			ft_miss_action;
   1889 	uint8_t			ft_level;
   1890 	uint8_t			ft_reserved0;
   1891 	uint8_t			ft_log_size;
   1892 	uint32_t		ft_table_miss_id;
   1893 	uint8_t			ft_reserved1[28];
   1894 } __packed __aligned(4);
   1895 
   1896 struct mcx_cmd_create_flow_table_mb_in {
   1897 	uint8_t			cmd_table_type;
   1898 	uint8_t			cmd_reserved0[7];
   1899 	struct mcx_flow_table_ctx cmd_ctx;
   1900 } __packed __aligned(4);
   1901 
   1902 struct mcx_cmd_create_flow_table_out {
   1903 	uint8_t			cmd_status;
   1904 	uint8_t			cmd_reserved0[3];
   1905 	uint32_t		cmd_syndrome;
   1906 	uint32_t		cmd_table_id;
   1907 	uint8_t			cmd_reserved1[4];
   1908 } __packed __aligned(4);
   1909 
   1910 struct mcx_cmd_destroy_flow_table_in {
   1911 	uint16_t		cmd_opcode;
   1912 	uint8_t			cmd_reserved0[4];
   1913 	uint16_t		cmd_op_mod;
   1914 	uint8_t			cmd_reserved1[8];
   1915 } __packed __aligned(4);
   1916 
   1917 struct mcx_cmd_destroy_flow_table_mb_in {
   1918 	uint8_t			cmd_table_type;
   1919 	uint8_t			cmd_reserved0[3];
   1920 	uint32_t		cmd_table_id;
   1921 	uint8_t			cmd_reserved1[40];
   1922 } __packed __aligned(4);
   1923 
   1924 struct mcx_cmd_destroy_flow_table_out {
   1925 	uint8_t			cmd_status;
   1926 	uint8_t			cmd_reserved0[3];
   1927 	uint32_t		cmd_syndrome;
   1928 	uint8_t			cmd_reserved1[8];
   1929 } __packed __aligned(4);
   1930 
   1931 struct mcx_cmd_set_flow_table_root_in {
   1932 	uint16_t		cmd_opcode;
   1933 	uint8_t			cmd_reserved0[4];
   1934 	uint16_t		cmd_op_mod;
   1935 	uint8_t			cmd_reserved1[8];
   1936 } __packed __aligned(4);
   1937 
   1938 struct mcx_cmd_set_flow_table_root_mb_in {
   1939 	uint8_t			cmd_table_type;
   1940 	uint8_t			cmd_reserved0[3];
   1941 	uint32_t		cmd_table_id;
   1942 	uint8_t			cmd_reserved1[56];
   1943 } __packed __aligned(4);
   1944 
   1945 struct mcx_cmd_set_flow_table_root_out {
   1946 	uint8_t			cmd_status;
   1947 	uint8_t			cmd_reserved0[3];
   1948 	uint32_t		cmd_syndrome;
   1949 	uint8_t			cmd_reserved1[8];
   1950 } __packed __aligned(4);
   1951 
   1952 struct mcx_flow_match {
   1953 	/* outer headers */
   1954 	uint8_t			mc_src_mac[6];
   1955 	uint16_t		mc_ethertype;
   1956 	uint8_t			mc_dest_mac[6];
   1957 	uint16_t		mc_first_vlan;
   1958 	uint8_t			mc_ip_proto;
   1959 	uint8_t			mc_ip_dscp_ecn;
   1960 	uint8_t			mc_vlan_flags;
   1961 #define MCX_FLOW_MATCH_IP_FRAG	(1 << 5)
   1962 	uint8_t			mc_tcp_flags;
   1963 	uint16_t		mc_tcp_sport;
   1964 	uint16_t		mc_tcp_dport;
   1965 	uint32_t		mc_reserved0;
   1966 	uint16_t		mc_udp_sport;
   1967 	uint16_t		mc_udp_dport;
   1968 	uint8_t			mc_src_ip[16];
   1969 	uint8_t			mc_dest_ip[16];
   1970 
   1971 	/* misc parameters */
   1972 	uint8_t			mc_reserved1[8];
   1973 	uint16_t		mc_second_vlan;
   1974 	uint8_t			mc_reserved2[2];
   1975 	uint8_t			mc_second_vlan_flags;
   1976 	uint8_t			mc_reserved3[15];
   1977 	uint32_t		mc_outer_ipv6_flow_label;
   1978 	uint8_t			mc_reserved4[32];
   1979 
   1980 	uint8_t			mc_reserved[384];
   1981 } __packed __aligned(4);
   1982 
   1983 CTASSERT(sizeof(struct mcx_flow_match) == 512);
   1984 
   1985 struct mcx_cmd_create_flow_group_in {
   1986 	uint16_t		cmd_opcode;
   1987 	uint8_t			cmd_reserved0[4];
   1988 	uint16_t		cmd_op_mod;
   1989 	uint8_t			cmd_reserved1[8];
   1990 } __packed __aligned(4);
   1991 
   1992 struct mcx_cmd_create_flow_group_mb_in {
   1993 	uint8_t			cmd_table_type;
   1994 	uint8_t			cmd_reserved0[3];
   1995 	uint32_t		cmd_table_id;
   1996 	uint8_t			cmd_reserved1[4];
   1997 	uint32_t		cmd_start_flow_index;
   1998 	uint8_t			cmd_reserved2[4];
   1999 	uint32_t		cmd_end_flow_index;
   2000 	uint8_t			cmd_reserved3[23];
   2001 	uint8_t			cmd_match_criteria_enable;
   2002 #define MCX_CREATE_FLOW_GROUP_CRIT_OUTER	(1 << 0)
   2003 #define MCX_CREATE_FLOW_GROUP_CRIT_MISC		(1 << 1)
   2004 #define MCX_CREATE_FLOW_GROUP_CRIT_INNER	(1 << 2)
   2005 	struct mcx_flow_match	cmd_match_criteria;
   2006 	uint8_t			cmd_reserved4[448];
   2007 } __packed __aligned(4);
   2008 
   2009 struct mcx_cmd_create_flow_group_out {
   2010 	uint8_t			cmd_status;
   2011 	uint8_t			cmd_reserved0[3];
   2012 	uint32_t		cmd_syndrome;
   2013 	uint32_t		cmd_group_id;
   2014 	uint8_t			cmd_reserved1[4];
   2015 } __packed __aligned(4);
   2016 
   2017 struct mcx_flow_ctx {
   2018 	uint8_t			fc_reserved0[4];
   2019 	uint32_t		fc_group_id;
   2020 	uint32_t		fc_flow_tag;
   2021 	uint32_t		fc_action;
   2022 #define MCX_FLOW_CONTEXT_ACTION_ALLOW		(1 << 0)
   2023 #define MCX_FLOW_CONTEXT_ACTION_DROP		(1 << 1)
   2024 #define MCX_FLOW_CONTEXT_ACTION_FORWARD		(1 << 2)
   2025 #define MCX_FLOW_CONTEXT_ACTION_COUNT		(1 << 3)
   2026 	uint32_t		fc_dest_list_size;
   2027 	uint32_t		fc_counter_list_size;
   2028 	uint8_t			fc_reserved1[40];
   2029 	struct mcx_flow_match	fc_match_value;
   2030 	uint8_t			fc_reserved2[192];
   2031 } __packed __aligned(4);
   2032 
   2033 #define MCX_FLOW_CONTEXT_DEST_TYPE_TABLE	(1 << 24)
   2034 #define MCX_FLOW_CONTEXT_DEST_TYPE_TIR		(2 << 24)
   2035 
   2036 struct mcx_cmd_destroy_flow_group_in {
   2037 	uint16_t		cmd_opcode;
   2038 	uint8_t			cmd_reserved0[4];
   2039 	uint16_t		cmd_op_mod;
   2040 	uint8_t			cmd_reserved1[8];
   2041 } __packed __aligned(4);
   2042 
   2043 struct mcx_cmd_destroy_flow_group_mb_in {
   2044 	uint8_t			cmd_table_type;
   2045 	uint8_t			cmd_reserved0[3];
   2046 	uint32_t		cmd_table_id;
   2047 	uint32_t		cmd_group_id;
   2048 	uint8_t			cmd_reserved1[36];
   2049 } __packed __aligned(4);
   2050 
   2051 struct mcx_cmd_destroy_flow_group_out {
   2052 	uint8_t			cmd_status;
   2053 	uint8_t			cmd_reserved0[3];
   2054 	uint32_t		cmd_syndrome;
   2055 	uint8_t			cmd_reserved1[8];
   2056 } __packed __aligned(4);
   2057 
   2058 struct mcx_cmd_set_flow_table_entry_in {
   2059 	uint16_t		cmd_opcode;
   2060 	uint8_t			cmd_reserved0[4];
   2061 	uint16_t		cmd_op_mod;
   2062 	uint8_t			cmd_reserved1[8];
   2063 } __packed __aligned(4);
   2064 
   2065 struct mcx_cmd_set_flow_table_entry_mb_in {
   2066 	uint8_t			cmd_table_type;
   2067 	uint8_t			cmd_reserved0[3];
   2068 	uint32_t		cmd_table_id;
   2069 	uint32_t		cmd_modify_enable_mask;
   2070 	uint8_t			cmd_reserved1[4];
   2071 	uint32_t		cmd_flow_index;
   2072 	uint8_t			cmd_reserved2[28];
   2073 	struct mcx_flow_ctx	cmd_flow_ctx;
   2074 } __packed __aligned(4);
   2075 
   2076 struct mcx_cmd_set_flow_table_entry_out {
   2077 	uint8_t			cmd_status;
   2078 	uint8_t			cmd_reserved0[3];
   2079 	uint32_t		cmd_syndrome;
   2080 	uint8_t			cmd_reserved1[8];
   2081 } __packed __aligned(4);
   2082 
   2083 struct mcx_cmd_query_flow_table_entry_in {
   2084 	uint16_t		cmd_opcode;
   2085 	uint8_t			cmd_reserved0[4];
   2086 	uint16_t		cmd_op_mod;
   2087 	uint8_t			cmd_reserved1[8];
   2088 } __packed __aligned(4);
   2089 
   2090 struct mcx_cmd_query_flow_table_entry_mb_in {
   2091 	uint8_t			cmd_table_type;
   2092 	uint8_t			cmd_reserved0[3];
   2093 	uint32_t		cmd_table_id;
   2094 	uint8_t			cmd_reserved1[8];
   2095 	uint32_t		cmd_flow_index;
   2096 	uint8_t			cmd_reserved2[28];
   2097 } __packed __aligned(4);
   2098 
   2099 struct mcx_cmd_query_flow_table_entry_out {
   2100 	uint8_t			cmd_status;
   2101 	uint8_t			cmd_reserved0[3];
   2102 	uint32_t		cmd_syndrome;
   2103 	uint8_t			cmd_reserved1[8];
   2104 } __packed __aligned(4);
   2105 
   2106 struct mcx_cmd_query_flow_table_entry_mb_out {
   2107 	uint8_t			cmd_reserved0[48];
   2108 	struct mcx_flow_ctx	cmd_flow_ctx;
   2109 } __packed __aligned(4);
   2110 
   2111 struct mcx_cmd_delete_flow_table_entry_in {
   2112 	uint16_t		cmd_opcode;
   2113 	uint8_t			cmd_reserved0[4];
   2114 	uint16_t		cmd_op_mod;
   2115 	uint8_t			cmd_reserved1[8];
   2116 } __packed __aligned(4);
   2117 
   2118 struct mcx_cmd_delete_flow_table_entry_mb_in {
   2119 	uint8_t			cmd_table_type;
   2120 	uint8_t			cmd_reserved0[3];
   2121 	uint32_t		cmd_table_id;
   2122 	uint8_t			cmd_reserved1[8];
   2123 	uint32_t		cmd_flow_index;
   2124 	uint8_t			cmd_reserved2[28];
   2125 } __packed __aligned(4);
   2126 
   2127 struct mcx_cmd_delete_flow_table_entry_out {
   2128 	uint8_t			cmd_status;
   2129 	uint8_t			cmd_reserved0[3];
   2130 	uint32_t		cmd_syndrome;
   2131 	uint8_t			cmd_reserved1[8];
   2132 } __packed __aligned(4);
   2133 
   2134 struct mcx_cmd_query_flow_group_in {
   2135 	uint16_t		cmd_opcode;
   2136 	uint8_t			cmd_reserved0[4];
   2137 	uint16_t		cmd_op_mod;
   2138 	uint8_t			cmd_reserved1[8];
   2139 } __packed __aligned(4);
   2140 
   2141 struct mcx_cmd_query_flow_group_mb_in {
   2142 	uint8_t			cmd_table_type;
   2143 	uint8_t			cmd_reserved0[3];
   2144 	uint32_t		cmd_table_id;
   2145 	uint32_t		cmd_group_id;
   2146 	uint8_t			cmd_reserved1[36];
   2147 } __packed __aligned(4);
   2148 
   2149 struct mcx_cmd_query_flow_group_out {
   2150 	uint8_t			cmd_status;
   2151 	uint8_t			cmd_reserved0[3];
   2152 	uint32_t		cmd_syndrome;
   2153 	uint8_t			cmd_reserved1[8];
   2154 } __packed __aligned(4);
   2155 
   2156 struct mcx_cmd_query_flow_group_mb_out {
   2157 	uint8_t			cmd_reserved0[12];
   2158 	uint32_t		cmd_start_flow_index;
   2159 	uint8_t			cmd_reserved1[4];
   2160 	uint32_t		cmd_end_flow_index;
   2161 	uint8_t			cmd_reserved2[20];
   2162 	uint32_t		cmd_match_criteria_enable;
   2163 	uint8_t			cmd_match_criteria[512];
   2164 	uint8_t			cmd_reserved4[448];
   2165 } __packed __aligned(4);
   2166 
   2167 struct mcx_cmd_query_flow_table_in {
   2168 	uint16_t		cmd_opcode;
   2169 	uint8_t			cmd_reserved0[4];
   2170 	uint16_t		cmd_op_mod;
   2171 	uint8_t			cmd_reserved1[8];
   2172 } __packed __aligned(4);
   2173 
   2174 struct mcx_cmd_query_flow_table_mb_in {
   2175 	uint8_t			cmd_table_type;
   2176 	uint8_t			cmd_reserved0[3];
   2177 	uint32_t		cmd_table_id;
   2178 	uint8_t			cmd_reserved1[40];
   2179 } __packed __aligned(4);
   2180 
   2181 struct mcx_cmd_query_flow_table_out {
   2182 	uint8_t			cmd_status;
   2183 	uint8_t			cmd_reserved0[3];
   2184 	uint32_t		cmd_syndrome;
   2185 	uint8_t			cmd_reserved1[8];
   2186 } __packed __aligned(4);
   2187 
   2188 struct mcx_cmd_query_flow_table_mb_out {
   2189 	uint8_t			cmd_reserved0[4];
   2190 	struct mcx_flow_table_ctx cmd_ctx;
   2191 } __packed __aligned(4);
   2192 
   2193 struct mcx_cmd_alloc_flow_counter_in {
   2194 	uint16_t		cmd_opcode;
   2195 	uint8_t			cmd_reserved0[4];
   2196 	uint16_t		cmd_op_mod;
   2197 	uint8_t			cmd_reserved1[8];
   2198 } __packed __aligned(4);
   2199 
   2200 struct mcx_cmd_query_rq_in {
   2201 	uint16_t		cmd_opcode;
   2202 	uint8_t			cmd_reserved0[4];
   2203 	uint16_t		cmd_op_mod;
   2204 	uint32_t		cmd_rqn;
   2205 	uint8_t			cmd_reserved1[4];
   2206 } __packed __aligned(4);
   2207 
   2208 struct mcx_cmd_query_rq_out {
   2209 	uint8_t			cmd_status;
   2210 	uint8_t			cmd_reserved0[3];
   2211 	uint32_t		cmd_syndrome;
   2212 	uint8_t			cmd_reserved1[8];
   2213 } __packed __aligned(4);
   2214 
   2215 struct mcx_cmd_query_rq_mb_out {
   2216 	uint8_t			cmd_reserved0[16];
   2217 	struct mcx_rq_ctx	cmd_ctx;
   2218 };
   2219 
   2220 struct mcx_cmd_query_sq_in {
   2221 	uint16_t		cmd_opcode;
   2222 	uint8_t			cmd_reserved0[4];
   2223 	uint16_t		cmd_op_mod;
   2224 	uint32_t		cmd_sqn;
   2225 	uint8_t			cmd_reserved1[4];
   2226 } __packed __aligned(4);
   2227 
   2228 struct mcx_cmd_query_sq_out {
   2229 	uint8_t			cmd_status;
   2230 	uint8_t			cmd_reserved0[3];
   2231 	uint32_t		cmd_syndrome;
   2232 	uint8_t			cmd_reserved1[8];
   2233 } __packed __aligned(4);
   2234 
   2235 struct mcx_cmd_query_sq_mb_out {
   2236 	uint8_t			cmd_reserved0[16];
   2237 	struct mcx_sq_ctx	cmd_ctx;
   2238 };
   2239 
   2240 struct mcx_cmd_alloc_flow_counter_out {
   2241 	uint8_t			cmd_status;
   2242 	uint8_t			cmd_reserved0[3];
   2243 	uint32_t		cmd_syndrome;
   2244 	uint8_t			cmd_reserved1[2];
   2245 	uint16_t		cmd_flow_counter_id;
   2246 	uint8_t			cmd_reserved2[4];
   2247 } __packed __aligned(4);
   2248 
   2249 struct mcx_wq_doorbell {
   2250 	uint32_t		 db_recv_counter;
   2251 	uint32_t		 db_send_counter;
   2252 } __packed __aligned(8);
   2253 
   2254 struct mcx_dmamem {
   2255 	bus_dmamap_t		 mxm_map;
   2256 	bus_dma_segment_t	 mxm_seg;
   2257 	int			 mxm_nsegs;
   2258 	size_t			 mxm_size;
   2259 	void			*mxm_kva;
   2260 };
   2261 #define MCX_DMA_MAP(_mxm)	((_mxm)->mxm_map)
   2262 #define MCX_DMA_DVA(_mxm)	((_mxm)->mxm_map->dm_segs[0].ds_addr)
   2263 #define MCX_DMA_KVA(_mxm)	((void *)(_mxm)->mxm_kva)
   2264 #define MCX_DMA_OFF(_mxm, _off)	((void *)((char *)(_mxm)->mxm_kva + (_off)))
   2265 #define MCX_DMA_LEN(_mxm)	((_mxm)->mxm_size)
   2266 
   2267 struct mcx_hwmem {
   2268 	bus_dmamap_t		 mhm_map;
   2269 	bus_dma_segment_t	*mhm_segs;
   2270 	unsigned int		 mhm_seg_count;
   2271 	unsigned int		 mhm_npages;
   2272 };
   2273 
   2274 struct mcx_slot {
   2275 	bus_dmamap_t		 ms_map;
   2276 	struct mbuf		*ms_m;
   2277 };
   2278 
   2279 struct mcx_eq {
   2280 	int			 eq_n;
   2281 	uint32_t		 eq_cons;
   2282 	struct mcx_dmamem	 eq_mem;
   2283 };
   2284 
   2285 struct mcx_cq {
   2286 	int			 cq_n;
   2287 	struct mcx_dmamem	 cq_mem;
   2288 	bus_addr_t		 cq_doorbell;
   2289 	uint32_t		 cq_cons;
   2290 	uint32_t		 cq_count;
   2291 };
   2292 
   2293 struct mcx_calibration {
   2294 	uint64_t		 c_timestamp;	/* previous mcx chip time */
   2295 	uint64_t		 c_uptime;	/* previous kernel nanouptime */
   2296 	uint64_t		 c_tbase;	/* mcx chip time */
   2297 	uint64_t		 c_ubase;	/* kernel nanouptime */
   2298 	uint64_t		 c_ratio;
   2299 };
   2300 
   2301 #define MCX_CALIBRATE_FIRST    2
   2302 #define MCX_CALIBRATE_NORMAL   32
   2303 
   2304 struct mcx_rxring {
   2305 	u_int			 rxr_total;
   2306 	u_int			 rxr_inuse;
   2307 };
   2308 
   2309 MBUFQ_HEAD(mcx_mbufq);
   2310 
   2311 struct mcx_rx {
   2312 	struct mcx_softc	*rx_softc;
   2313 
   2314 	int			 rx_rqn;
   2315 	struct mcx_dmamem	 rx_rq_mem;
   2316 	struct mcx_slot		*rx_slots;
   2317 	bus_addr_t		 rx_doorbell;
   2318 
   2319 	uint32_t		 rx_prod;
   2320 	callout_t		 rx_refill;
   2321 	struct mcx_rxring	 rx_rxr;
   2322 } __aligned(64);
   2323 
   2324 struct mcx_tx {
   2325 	struct mcx_softc	*tx_softc;
   2326 	kmutex_t		 tx_lock;
   2327 	pcq_t			*tx_pcq;
   2328 	void			*tx_softint;
   2329 
   2330 	int			 tx_uar;
   2331 	int			 tx_sqn;
   2332 	struct mcx_dmamem	 tx_sq_mem;
   2333 	struct mcx_slot		*tx_slots;
   2334 	bus_addr_t		 tx_doorbell;
   2335 	int			 tx_bf_offset;
   2336 
   2337 	uint32_t		 tx_cons;
   2338 	uint32_t		 tx_prod;
   2339 } __aligned(64);
   2340 
   2341 struct mcx_queues {
   2342 	void			*q_ihc;
   2343 	struct mcx_softc	*q_sc;
   2344 	int			 q_uar;
   2345 	int			 q_index;
   2346 	struct mcx_rx		 q_rx;
   2347 	struct mcx_tx		 q_tx;
   2348 	struct mcx_cq		 q_cq;
   2349 	struct mcx_eq		 q_eq;
   2350 #if NKSTAT > 0
   2351 	struct kstat		*q_kstat;
   2352 #endif
   2353 };
   2354 
   2355 struct mcx_flow_group {
   2356 	int			 g_id;
   2357 	int			 g_table;
   2358 	int			 g_start;
   2359 	int			 g_size;
   2360 };
   2361 
   2362 #define MCX_FLOW_GROUP_PROMISC		0
   2363 #define MCX_FLOW_GROUP_ALLMULTI		1
   2364 #define MCX_FLOW_GROUP_MAC		2
   2365 #define MCX_FLOW_GROUP_RSS_L4		3
   2366 #define MCX_FLOW_GROUP_RSS_L3		4
   2367 #define MCX_FLOW_GROUP_RSS_NONE		5
   2368 #define	MCX_NUM_FLOW_GROUPS		6
   2369 
   2370 #define MCX_HASH_SEL_L3		MCX_TIR_CTX_HASH_SEL_SRC_IP | \
   2371 				MCX_TIR_CTX_HASH_SEL_DST_IP
   2372 #define MCX_HASH_SEL_L4		MCX_HASH_SEL_L3 | MCX_TIR_CTX_HASH_SEL_SPORT | \
   2373 				MCX_TIR_CTX_HASH_SEL_DPORT
   2374 
   2375 #define MCX_RSS_HASH_SEL_V4_TCP MCX_HASH_SEL_L4 | MCX_TIR_CTX_HASH_SEL_TCP  |\
   2376 				MCX_TIR_CTX_HASH_SEL_IPV4
   2377 #define MCX_RSS_HASH_SEL_V6_TCP	MCX_HASH_SEL_L4 | MCX_TIR_CTX_HASH_SEL_TCP | \
   2378 				MCX_TIR_CTX_HASH_SEL_IPV6
   2379 #define MCX_RSS_HASH_SEL_V4_UDP	MCX_HASH_SEL_L4 | MCX_TIR_CTX_HASH_SEL_UDP | \
   2380 				MCX_TIR_CTX_HASH_SEL_IPV4
   2381 #define MCX_RSS_HASH_SEL_V6_UDP	MCX_HASH_SEL_L4 | MCX_TIR_CTX_HASH_SEL_UDP | \
   2382 				MCX_TIR_CTX_HASH_SEL_IPV6
   2383 #define MCX_RSS_HASH_SEL_V4	MCX_HASH_SEL_L3 | MCX_TIR_CTX_HASH_SEL_IPV4
   2384 #define MCX_RSS_HASH_SEL_V6	MCX_HASH_SEL_L3 | MCX_TIR_CTX_HASH_SEL_IPV6
   2385 
   2386 /*
   2387  * There are a few different pieces involved in configuring RSS.
   2388  * A Receive Queue Table (RQT) is the indirection table that maps packets to
   2389  * different rx queues based on a hash value.  We only create one, because
   2390  * we want to scatter any traffic we can apply RSS to across all our rx
   2391  * queues.  Anything else will only be delivered to the first rx queue,
   2392  * which doesn't require an RQT.
   2393  *
   2394  * A Transport Interface Receive (TIR) delivers packets to either a single rx
   2395  * queue or an RQT, and in the latter case, specifies the set of fields
   2396  * hashed, the hash function, and the hash key.  We need one of these for each
   2397  * type of RSS traffic - v4 TCP, v6 TCP, v4 UDP, v6 UDP, other v4, other v6,
   2398  * and one for non-RSS traffic.
   2399  *
   2400  * Flow tables hold flow table entries in sequence.  The first entry that
   2401  * matches a packet is applied, sending the packet to either another flow
   2402  * table or a TIR.  We use one flow table to select packets based on
   2403  * destination MAC address, and a second to apply RSS.  The entries in the
   2404  * first table send matching packets to the second, and the entries in the
   2405  * RSS table send packets to RSS TIRs if possible, or the non-RSS TIR.
   2406  *
   2407  * The flow table entry that delivers packets to an RSS TIR must include match
   2408  * criteria that ensure packets delivered to the TIR include all the fields
   2409  * that the TIR hashes on - so for a v4 TCP TIR, the flow table entry must
   2410  * only accept v4 TCP packets.  Accordingly, we need flow table entries for
   2411  * each TIR.
   2412  *
   2413  * All of this is a lot more flexible than we need, and we can describe most
   2414  * of the stuff we need with a simple array.
   2415  *
   2416  * An RSS config creates a TIR with hashing enabled on a set of fields,
   2417  * pointing to either the first rx queue or the RQT containing all the rx
   2418  * queues, and a flow table entry that matches on an ether type and
   2419  * optionally an ip proto, that delivers packets to the TIR.
   2420  */
   2421 static struct mcx_rss_rule {
   2422 	int			hash_sel;
   2423 	int			flow_group;
   2424 	int			ethertype;
   2425 	int			ip_proto;
   2426 } mcx_rss_config[] = {
   2427 	/* udp and tcp for v4/v6 */
   2428 	{ MCX_RSS_HASH_SEL_V4_TCP, MCX_FLOW_GROUP_RSS_L4,
   2429 	  ETHERTYPE_IP, IPPROTO_TCP },
   2430 	{ MCX_RSS_HASH_SEL_V6_TCP, MCX_FLOW_GROUP_RSS_L4,
   2431 	  ETHERTYPE_IPV6, IPPROTO_TCP },
   2432 	{ MCX_RSS_HASH_SEL_V4_UDP, MCX_FLOW_GROUP_RSS_L4,
   2433 	  ETHERTYPE_IP, IPPROTO_UDP },
   2434 	{ MCX_RSS_HASH_SEL_V6_UDP, MCX_FLOW_GROUP_RSS_L4,
   2435 	  ETHERTYPE_IPV6, IPPROTO_UDP },
   2436 
   2437 	/* other v4/v6 */
   2438 	{ MCX_RSS_HASH_SEL_V4, MCX_FLOW_GROUP_RSS_L3,
   2439 	  ETHERTYPE_IP, 0 },
   2440 	{ MCX_RSS_HASH_SEL_V6, MCX_FLOW_GROUP_RSS_L3,
   2441 	  ETHERTYPE_IPV6, 0 },
   2442 
   2443 	/* non v4/v6 */
   2444 	{ 0, MCX_FLOW_GROUP_RSS_NONE, 0, 0 }
   2445 };
   2446 
   2447 struct mcx_softc {
   2448 	device_t		 sc_dev;
   2449 	struct ethercom		 sc_ec;
   2450 	struct ifmedia		 sc_media;
   2451 	uint64_t		 sc_media_status;
   2452 	uint64_t		 sc_media_active;
   2453 	kmutex_t		 sc_media_mutex;
   2454 
   2455 	pci_chipset_tag_t	 sc_pc;
   2456 	pci_intr_handle_t	*sc_intrs;
   2457 	void			*sc_ihc;
   2458 	pcitag_t		 sc_tag;
   2459 
   2460 	bus_dma_tag_t		 sc_dmat;
   2461 	bus_space_tag_t		 sc_memt;
   2462 	bus_space_handle_t	 sc_memh;
   2463 	bus_size_t		 sc_mems;
   2464 
   2465 	struct mcx_dmamem	 sc_cmdq_mem;
   2466 	unsigned int		 sc_cmdq_mask;
   2467 	unsigned int		 sc_cmdq_size;
   2468 
   2469 	unsigned int		 sc_cmdq_token;
   2470 
   2471 	struct mcx_hwmem	 sc_boot_pages;
   2472 	struct mcx_hwmem	 sc_init_pages;
   2473 	struct mcx_hwmem	 sc_regular_pages;
   2474 
   2475 	int			 sc_uar;
   2476 	int			 sc_pd;
   2477 	int			 sc_tdomain;
   2478 	uint32_t		 sc_lkey;
   2479 	int			 sc_tis;
   2480 	int			 sc_tir[__arraycount(mcx_rss_config)];
   2481 	int			 sc_rqt;
   2482 
   2483 	struct mcx_dmamem	 sc_doorbell_mem;
   2484 
   2485 	struct mcx_eq		 sc_admin_eq;
   2486 	struct mcx_eq		 sc_queue_eq;
   2487 
   2488 	int			 sc_hardmtu;
   2489 	int			 sc_rxbufsz;
   2490 
   2491 	int			 sc_bf_size;
   2492 	int			 sc_max_rqt_size;
   2493 
   2494 	struct workqueue	*sc_workq;
   2495 	struct work		 sc_port_change;
   2496 
   2497 	int			 sc_mac_flow_table_id;
   2498 	int			 sc_rss_flow_table_id;
   2499 	struct mcx_flow_group	 sc_flow_group[MCX_NUM_FLOW_GROUPS];
   2500 	int			 sc_promisc_flow_enabled;
   2501 	int			 sc_allmulti_flow_enabled;
   2502 	int			 sc_mcast_flow_base;
   2503 	int			 sc_extra_mcast;
   2504 	uint8_t			 sc_mcast_flows[MCX_NUM_MCAST_FLOWS][ETHER_ADDR_LEN];
   2505 
   2506 	struct mcx_calibration	 sc_calibration[2];
   2507 	unsigned int		 sc_calibration_gen;
   2508 	callout_t		 sc_calibrate;
   2509 	uint32_t		 sc_mhz;
   2510 	uint32_t		 sc_khz;
   2511 
   2512 	struct mcx_queues	*sc_queues;
   2513 	unsigned int		 sc_nqueues;
   2514 
   2515 	int			 sc_mcam_reg;
   2516 
   2517 #if NKSTAT > 0
   2518 	struct kstat		*sc_kstat_ieee8023;
   2519 	struct kstat		*sc_kstat_rfc2863;
   2520 	struct kstat		*sc_kstat_rfc2819;
   2521 	struct kstat		*sc_kstat_rfc3635;
   2522 	unsigned int		 sc_kstat_mtmp_count;
   2523 	struct kstat		**sc_kstat_mtmp;
   2524 #endif
   2525 
   2526 	struct timecounter	 sc_timecounter;
   2527 };
   2528 #define DEVNAME(_sc) device_xname((_sc)->sc_dev)
   2529 
   2530 static int	mcx_match(device_t, cfdata_t, void *);
   2531 static void	mcx_attach(device_t, device_t, void *);
   2532 
   2533 static void *	mcx_establish_intr(struct mcx_softc *, int, kcpuset_t *,
   2534 		    int (*)(void *), void *, const char *);
   2535 
   2536 static void	mcx_rxr_init(struct mcx_rxring *, u_int, u_int);
   2537 static u_int	mcx_rxr_get(struct mcx_rxring *, u_int);
   2538 static void	mcx_rxr_put(struct mcx_rxring *, u_int);
   2539 static u_int	mcx_rxr_inuse(struct mcx_rxring *);
   2540 
   2541 #if NKSTAT > 0
   2542 static void	mcx_kstat_attach(struct mcx_softc *);
   2543 #endif
   2544 
   2545 static void	mcx_timecounter_attach(struct mcx_softc *);
   2546 
   2547 static int	mcx_version(struct mcx_softc *);
   2548 static int	mcx_init_wait(struct mcx_softc *);
   2549 static int	mcx_enable_hca(struct mcx_softc *);
   2550 static int	mcx_teardown_hca(struct mcx_softc *, uint16_t);
   2551 static int	mcx_access_hca_reg(struct mcx_softc *, uint16_t, int, void *,
   2552 		    int);
   2553 static int	mcx_issi(struct mcx_softc *);
   2554 static int	mcx_pages(struct mcx_softc *, struct mcx_hwmem *, uint16_t);
   2555 static int	mcx_hca_max_caps(struct mcx_softc *);
   2556 static int	mcx_hca_set_caps(struct mcx_softc *);
   2557 static int	mcx_init_hca(struct mcx_softc *);
   2558 static int	mcx_set_driver_version(struct mcx_softc *);
   2559 static int	mcx_iff(struct mcx_softc *);
   2560 static int	mcx_alloc_uar(struct mcx_softc *, int *);
   2561 static int	mcx_alloc_pd(struct mcx_softc *);
   2562 static int	mcx_alloc_tdomain(struct mcx_softc *);
   2563 static int	mcx_create_eq(struct mcx_softc *, struct mcx_eq *, int,
   2564 		    uint64_t, int);
   2565 static int	mcx_query_nic_vport_context(struct mcx_softc *, uint8_t *);
   2566 static int	mcx_query_special_contexts(struct mcx_softc *);
   2567 static int	mcx_set_port_mtu(struct mcx_softc *, int);
   2568 static int	mcx_create_cq(struct mcx_softc *, struct mcx_cq *, int, int,
   2569 		    int);
   2570 static int	mcx_destroy_cq(struct mcx_softc *, struct mcx_cq *);
   2571 static int	mcx_create_sq(struct mcx_softc *, struct mcx_tx *, int, int,
   2572 		    int);
   2573 static int	mcx_destroy_sq(struct mcx_softc *, struct mcx_tx *);
   2574 static int	mcx_ready_sq(struct mcx_softc *, struct mcx_tx *);
   2575 static int	mcx_create_rq(struct mcx_softc *, struct mcx_rx *, int, int);
   2576 static int	mcx_destroy_rq(struct mcx_softc *, struct mcx_rx *);
   2577 static int	mcx_ready_rq(struct mcx_softc *, struct mcx_rx *);
   2578 static int	mcx_create_tir_direct(struct mcx_softc *, struct mcx_rx *,
   2579 		    int *);
   2580 static int	mcx_create_tir_indirect(struct mcx_softc *, int, uint32_t,
   2581 		    int *);
   2582 static int	mcx_destroy_tir(struct mcx_softc *, int);
   2583 static int	mcx_create_tis(struct mcx_softc *, int *);
   2584 static int	mcx_destroy_tis(struct mcx_softc *, int);
   2585 static int	mcx_create_rqt(struct mcx_softc *, int, int *, int *);
   2586 static int	mcx_destroy_rqt(struct mcx_softc *, int);
   2587 static int	mcx_create_flow_table(struct mcx_softc *, int, int, int *);
   2588 static int	mcx_set_flow_table_root(struct mcx_softc *, int);
   2589 static int	mcx_destroy_flow_table(struct mcx_softc *, int);
   2590 static int	mcx_create_flow_group(struct mcx_softc *, int, int, int,
   2591 		    int, int, struct mcx_flow_match *);
   2592 static int	mcx_destroy_flow_group(struct mcx_softc *, int);
   2593 static int	mcx_set_flow_table_entry_mac(struct mcx_softc *, int, int,
   2594 		    const uint8_t *, uint32_t);
   2595 static int	mcx_set_flow_table_entry_proto(struct mcx_softc *, int, int,
   2596 		    int, int, uint32_t);
   2597 static int	mcx_delete_flow_table_entry(struct mcx_softc *, int, int);
   2598 
   2599 #if NKSTAT > 0
   2600 static int	mcx_query_rq(struct mcx_softc *, struct mcx_rx *, struct mcx_rq_ctx *);
   2601 static int	mcx_query_sq(struct mcx_softc *, struct mcx_tx *, struct mcx_sq_ctx *);
   2602 static int	mcx_query_cq(struct mcx_softc *, struct mcx_cq *, struct mcx_cq_ctx *);
   2603 static int	mcx_query_eq(struct mcx_softc *, struct mcx_eq *, struct mcx_eq_ctx *);
   2604 #endif
   2605 
   2606 #if 0
   2607 static int	mcx_dump_flow_table(struct mcx_softc *, int);
   2608 static int	mcx_dump_flow_table_entry(struct mcx_softc *, int, int);
   2609 static int	mcx_dump_flow_group(struct mcx_softc *, int);
   2610 #endif
   2611 
   2612 
   2613 /*
   2614 static void	mcx_cmdq_dump(const struct mcx_cmdq_entry *);
   2615 static void	mcx_cmdq_mbox_dump(struct mcx_dmamem *, int);
   2616 */
   2617 static void	mcx_refill(void *);
   2618 static int	mcx_process_rx(struct mcx_softc *, struct mcx_rx *,
   2619 		    struct mcx_cq_entry *, struct mcx_mbufq *,
   2620 		    const struct mcx_calibration *);
   2621 static int	mcx_process_txeof(struct mcx_softc *, struct mcx_tx *,
   2622 		    struct mcx_cq_entry *);
   2623 static void	mcx_process_cq(struct mcx_softc *, struct mcx_queues *,
   2624 		    struct mcx_cq *);
   2625 
   2626 static void	mcx_arm_cq(struct mcx_softc *, struct mcx_cq *, int);
   2627 static void	mcx_arm_eq(struct mcx_softc *, struct mcx_eq *, int);
   2628 static int	mcx_admin_intr(void *);
   2629 static int	mcx_cq_intr(void *);
   2630 
   2631 static int	mcx_init(struct ifnet *);
   2632 static void	mcx_stop(struct ifnet *, int);
   2633 static int	mcx_ioctl(struct ifnet *, u_long, void *);
   2634 static void	mcx_start(struct ifnet *);
   2635 static int	mcx_transmit(struct ifnet *, struct mbuf *);
   2636 static void	mcx_deferred_transmit(void *);
   2637 static void	mcx_media_add_types(struct mcx_softc *);
   2638 static void	mcx_media_status(struct ifnet *, struct ifmediareq *);
   2639 static int	mcx_media_change(struct ifnet *);
   2640 #if 0
   2641 static int	mcx_get_sffpage(struct ifnet *, struct if_sffpage *);
   2642 #endif
   2643 static void	mcx_port_change(struct work *, void *);
   2644 
   2645 static void	mcx_calibrate_first(struct mcx_softc *);
   2646 static void	mcx_calibrate(void *);
   2647 
   2648 static inline uint32_t
   2649 		mcx_rd(struct mcx_softc *, bus_size_t);
   2650 static inline void
   2651 		mcx_wr(struct mcx_softc *, bus_size_t, uint32_t);
   2652 static inline void
   2653 		mcx_bar(struct mcx_softc *, bus_size_t, bus_size_t, int);
   2654 
   2655 static uint64_t	mcx_timer(struct mcx_softc *);
   2656 
   2657 static int	mcx_dmamem_alloc(struct mcx_softc *, struct mcx_dmamem *,
   2658 		    bus_size_t, u_int align);
   2659 static void	mcx_dmamem_zero(struct mcx_dmamem *);
   2660 static void	mcx_dmamem_free(struct mcx_softc *, struct mcx_dmamem *);
   2661 
   2662 static int	mcx_hwmem_alloc(struct mcx_softc *, struct mcx_hwmem *,
   2663 		    unsigned int);
   2664 static void	mcx_hwmem_free(struct mcx_softc *, struct mcx_hwmem *);
   2665 
   2666 CFATTACH_DECL_NEW(mcx, sizeof(struct mcx_softc), mcx_match, mcx_attach, NULL, NULL);
   2667 
   2668 static const struct {
   2669 	pci_vendor_id_t		vendor;
   2670 	pci_product_id_t	product;
   2671 } mcx_devices[] = {
   2672 	{ PCI_VENDOR_MELLANOX,	PCI_PRODUCT_MELLANOX_MT27700 },
   2673 	{ PCI_VENDOR_MELLANOX,	PCI_PRODUCT_MELLANOX_MT27700VF },
   2674 	{ PCI_VENDOR_MELLANOX,	PCI_PRODUCT_MELLANOX_MT27710 },
   2675 	{ PCI_VENDOR_MELLANOX,	PCI_PRODUCT_MELLANOX_MT27710VF },
   2676 	{ PCI_VENDOR_MELLANOX,	PCI_PRODUCT_MELLANOX_MT27800 },
   2677 	{ PCI_VENDOR_MELLANOX,	PCI_PRODUCT_MELLANOX_MT27800VF },
   2678 	{ PCI_VENDOR_MELLANOX,	PCI_PRODUCT_MELLANOX_MT28800 },
   2679 	{ PCI_VENDOR_MELLANOX,	PCI_PRODUCT_MELLANOX_MT28800VF },
   2680 	{ PCI_VENDOR_MELLANOX,	PCI_PRODUCT_MELLANOX_MT28908 },
   2681 	{ PCI_VENDOR_MELLANOX,	PCI_PRODUCT_MELLANOX_MT2892 },
   2682 	{ PCI_VENDOR_MELLANOX,	PCI_PRODUCT_MELLANOX_MT2894 },
   2683 };
   2684 
   2685 struct mcx_eth_proto_capability {
   2686 	uint64_t	cap_media;
   2687 	uint64_t	cap_baudrate;
   2688 };
   2689 
   2690 static const struct mcx_eth_proto_capability mcx_eth_cap_map[] = {
   2691 	[MCX_ETHER_CAP_SGMII]		= { IFM_1000_SGMII,	IF_Gbps(1) },
   2692 	[MCX_ETHER_CAP_1000_KX]		= { IFM_1000_KX,	IF_Gbps(1) },
   2693 	[MCX_ETHER_CAP_10G_CX4]		= { IFM_10G_CX4,	IF_Gbps(10) },
   2694 	[MCX_ETHER_CAP_10G_KX4]		= { IFM_10G_KX4,	IF_Gbps(10) },
   2695 	[MCX_ETHER_CAP_10G_KR]		= { IFM_10G_KR,		IF_Gbps(10) },
   2696 	[MCX_ETHER_CAP_20G_KR2]		= { IFM_20G_KR2,	IF_Gbps(20) },
   2697 	[MCX_ETHER_CAP_40G_CR4]		= { IFM_40G_CR4,	IF_Gbps(40) },
   2698 	[MCX_ETHER_CAP_40G_KR4]		= { IFM_40G_KR4,	IF_Gbps(40) },
   2699 	[MCX_ETHER_CAP_56G_R4]		= { IFM_56G_R4,		IF_Gbps(56) },
   2700 	[MCX_ETHER_CAP_10G_CR]		= { IFM_10G_CR1,	IF_Gbps(10) },
   2701 	[MCX_ETHER_CAP_10G_SR]		= { IFM_10G_SR,		IF_Gbps(10) },
   2702 	[MCX_ETHER_CAP_10G_LR]		= { IFM_10G_LR,		IF_Gbps(10) },
   2703 	[MCX_ETHER_CAP_40G_SR4]		= { IFM_40G_SR4,	IF_Gbps(40) },
   2704 	[MCX_ETHER_CAP_40G_LR4]		= { IFM_40G_LR4,	IF_Gbps(40) },
   2705 	[MCX_ETHER_CAP_50G_SR2]		= { IFM_50G_SR2,	IF_Gbps(50) },
   2706 	[MCX_ETHER_CAP_100G_CR4]	= { IFM_100G_CR4,	IF_Gbps(100) },
   2707 	[MCX_ETHER_CAP_100G_SR4]	= { IFM_100G_SR4,	IF_Gbps(100) },
   2708 	[MCX_ETHER_CAP_100G_KR4]	= { IFM_100G_KR4,	IF_Gbps(100) },
   2709 	[MCX_ETHER_CAP_100G_LR4]	= { IFM_100G_LR4,	IF_Gbps(100) },
   2710 	[MCX_ETHER_CAP_100_TX]		= { IFM_100_TX,		IF_Mbps(100) },
   2711 	[MCX_ETHER_CAP_1000_T]		= { IFM_1000_T,		IF_Gbps(1) },
   2712 	[MCX_ETHER_CAP_10G_T]		= { IFM_10G_T,		IF_Gbps(10) },
   2713 	[MCX_ETHER_CAP_25G_CR]		= { IFM_25G_CR,		IF_Gbps(25) },
   2714 	[MCX_ETHER_CAP_25G_KR]		= { IFM_25G_KR,		IF_Gbps(25) },
   2715 	[MCX_ETHER_CAP_25G_SR]		= { IFM_25G_SR,		IF_Gbps(25) },
   2716 	[MCX_ETHER_CAP_50G_CR2]		= { IFM_50G_CR2,	IF_Gbps(50) },
   2717 	[MCX_ETHER_CAP_50G_KR2]		= { IFM_50G_KR2,	IF_Gbps(50) },
   2718 };
   2719 
   2720 static int
   2721 mcx_get_id(uint32_t val)
   2722 {
   2723 	return be32toh(val) & 0x00ffffff;
   2724 }
   2725 
   2726 static int
   2727 mcx_match(device_t parent, cfdata_t cf, void *aux)
   2728 {
   2729 	struct pci_attach_args *pa = aux;
   2730 	int n;
   2731 
   2732 	for (n = 0; n < __arraycount(mcx_devices); n++) {
   2733 		if (PCI_VENDOR(pa->pa_id) == mcx_devices[n].vendor &&
   2734 		    PCI_PRODUCT(pa->pa_id) == mcx_devices[n].product)
   2735 			return 1;
   2736 	}
   2737 
   2738 	return 0;
   2739 }
   2740 
   2741 void
   2742 mcx_attach(device_t parent, device_t self, void *aux)
   2743 {
   2744 	struct mcx_softc *sc = device_private(self);
   2745 	struct ifnet *ifp = &sc->sc_ec.ec_if;
   2746 	struct pci_attach_args *pa = aux;
   2747 	struct ifcapreq ifcr;
   2748 	uint8_t enaddr[ETHER_ADDR_LEN];
   2749 	int counts[PCI_INTR_TYPE_SIZE];
   2750 	char intrxname[32];
   2751 	pcireg_t memtype;
   2752 	uint32_t r;
   2753 	unsigned int cq_stride;
   2754 	unsigned int cq_size;
   2755 	int i, msix;
   2756 	kcpuset_t *affinity;
   2757 
   2758 	sc->sc_dev = self;
   2759 	sc->sc_pc = pa->pa_pc;
   2760 	sc->sc_tag = pa->pa_tag;
   2761 	if (pci_dma64_available(pa))
   2762 		sc->sc_dmat = pa->pa_dmat64;
   2763 	else
   2764 		sc->sc_dmat = pa->pa_dmat;
   2765 
   2766 	/* Map the PCI memory space */
   2767 	memtype = pci_mapreg_type(sc->sc_pc, sc->sc_tag, MCX_HCA_BAR);
   2768 	if (pci_mapreg_map(pa, MCX_HCA_BAR, memtype,
   2769 #ifdef __NetBSD__
   2770 	    0,
   2771 #else
   2772 	    BUS_SPACE_MAP_PREFETCHABLE,
   2773 #endif
   2774 	    &sc->sc_memt, &sc->sc_memh,
   2775 	    NULL, &sc->sc_mems)) {
   2776 		aprint_error(": unable to map register memory\n");
   2777 		return;
   2778 	}
   2779 
   2780 	pci_aprint_devinfo(pa, "Ethernet controller");
   2781 
   2782 	mutex_init(&sc->sc_media_mutex, MUTEX_DEFAULT, IPL_SOFTNET);
   2783 
   2784 	if (mcx_version(sc) != 0) {
   2785 		/* error printed by mcx_version */
   2786 		goto unmap;
   2787 	}
   2788 
   2789 	r = mcx_rd(sc, MCX_CMDQ_ADDR_LO);
   2790 	cq_stride = 1 << MCX_CMDQ_LOG_STRIDE(r); /* size of the entries */
   2791 	cq_size = 1 << MCX_CMDQ_LOG_SIZE(r); /* number of entries */
   2792 	if (cq_size > MCX_MAX_CQE) {
   2793 		aprint_error_dev(self,
   2794 		    "command queue size overflow %u\n", cq_size);
   2795 		goto unmap;
   2796 	}
   2797 	if (cq_stride < sizeof(struct mcx_cmdq_entry)) {
   2798 		aprint_error_dev(self,
   2799 		    "command queue entry size underflow %u\n", cq_stride);
   2800 		goto unmap;
   2801 	}
   2802 	if (cq_stride * cq_size > MCX_PAGE_SIZE) {
   2803 		aprint_error_dev(self, "command queue page overflow\n");
   2804 		goto unmap;
   2805 	}
   2806 
   2807 	if (mcx_dmamem_alloc(sc, &sc->sc_doorbell_mem, MCX_DOORBELL_AREA_SIZE,
   2808 	    MCX_PAGE_SIZE) != 0) {
   2809 		aprint_error_dev(self, "unable to allocate doorbell memory\n");
   2810 		goto unmap;
   2811 	}
   2812 
   2813 	if (mcx_dmamem_alloc(sc, &sc->sc_cmdq_mem, MCX_PAGE_SIZE,
   2814 	    MCX_PAGE_SIZE) != 0) {
   2815 		aprint_error_dev(self, "unable to allocate command queue\n");
   2816 		goto dbfree;
   2817 	}
   2818 
   2819 	mcx_wr(sc, MCX_CMDQ_ADDR_HI, MCX_DMA_DVA(&sc->sc_cmdq_mem) >> 32);
   2820 	mcx_bar(sc, MCX_CMDQ_ADDR_HI, sizeof(uint32_t),
   2821 	    BUS_SPACE_BARRIER_WRITE);
   2822 	mcx_wr(sc, MCX_CMDQ_ADDR_LO, MCX_DMA_DVA(&sc->sc_cmdq_mem));
   2823 	mcx_bar(sc, MCX_CMDQ_ADDR_LO, sizeof(uint32_t),
   2824 	    BUS_SPACE_BARRIER_WRITE);
   2825 
   2826 	if (mcx_init_wait(sc) != 0) {
   2827 		aprint_error_dev(self, "timeout waiting for init\n");
   2828 		goto cqfree;
   2829 	}
   2830 
   2831 	sc->sc_cmdq_mask = cq_size - 1;
   2832 	sc->sc_cmdq_size = cq_stride;
   2833 
   2834 	if (mcx_enable_hca(sc) != 0) {
   2835 		/* error printed by mcx_enable_hca */
   2836 		goto cqfree;
   2837 	}
   2838 
   2839 	if (mcx_issi(sc) != 0) {
   2840 		/* error printed by mcx_issi */
   2841 		goto teardown;
   2842 	}
   2843 
   2844 	if (mcx_pages(sc, &sc->sc_boot_pages,
   2845 	    htobe16(MCX_CMD_QUERY_PAGES_BOOT)) != 0) {
   2846 		/* error printed by mcx_pages */
   2847 		goto teardown;
   2848 	}
   2849 
   2850 	if (mcx_hca_max_caps(sc) != 0) {
   2851 		/* error printed by mcx_hca_max_caps */
   2852 		goto teardown;
   2853 	}
   2854 
   2855 	if (mcx_hca_set_caps(sc) != 0) {
   2856 		/* error printed by mcx_hca_set_caps */
   2857 		goto teardown;
   2858 	}
   2859 
   2860 	if (mcx_pages(sc, &sc->sc_init_pages,
   2861 	    htobe16(MCX_CMD_QUERY_PAGES_INIT)) != 0) {
   2862 		/* error printed by mcx_pages */
   2863 		goto teardown;
   2864 	}
   2865 
   2866 	if (mcx_init_hca(sc) != 0) {
   2867 		/* error printed by mcx_init_hca */
   2868 		goto teardown;
   2869 	}
   2870 
   2871 	if (mcx_pages(sc, &sc->sc_regular_pages,
   2872 	    htobe16(MCX_CMD_QUERY_PAGES_REGULAR)) != 0) {
   2873 		/* error printed by mcx_pages */
   2874 		goto teardown;
   2875 	}
   2876 
   2877 	/* apparently not necessary? */
   2878 	if (mcx_set_driver_version(sc) != 0) {
   2879 		/* error printed by mcx_set_driver_version */
   2880 		goto teardown;
   2881 	}
   2882 
   2883 	if (mcx_iff(sc) != 0) {	/* modify nic vport context */
   2884 		/* error printed by mcx_iff? */
   2885 		goto teardown;
   2886 	}
   2887 
   2888 	if (mcx_alloc_uar(sc, &sc->sc_uar) != 0) {
   2889 		/* error printed by mcx_alloc_uar */
   2890 		goto teardown;
   2891 	}
   2892 
   2893 	if (mcx_alloc_pd(sc) != 0) {
   2894 		/* error printed by mcx_alloc_pd */
   2895 		goto teardown;
   2896 	}
   2897 
   2898 	if (mcx_alloc_tdomain(sc) != 0) {
   2899 		/* error printed by mcx_alloc_tdomain */
   2900 		goto teardown;
   2901 	}
   2902 
   2903 	/*
   2904 	 * PRM makes no mention of msi interrupts, just legacy and msi-x.
   2905 	 * mellanox support tells me legacy interrupts are not supported,
   2906 	 * so we're stuck with just msi-x.
   2907 	 */
   2908 	counts[PCI_INTR_TYPE_MSIX] = -1;
   2909 	counts[PCI_INTR_TYPE_MSI] = 0;
   2910 	counts[PCI_INTR_TYPE_INTX] = 0;
   2911 	if (pci_intr_alloc(pa, &sc->sc_intrs, counts, PCI_INTR_TYPE_MSIX) != 0) {
   2912 		aprint_error_dev(self, "unable to allocate interrupt\n");
   2913 		goto teardown;
   2914 	}
   2915 	if (counts[PCI_INTR_TYPE_MSIX] < 2) {
   2916 		aprint_error_dev(self, "not enough MSI-X vectors\n");
   2917 		goto teardown;
   2918 	}
   2919 	KASSERT(pci_intr_type(sc->sc_pc, sc->sc_intrs[0]) == PCI_INTR_TYPE_MSIX);
   2920 	snprintf(intrxname, sizeof(intrxname), "%s adminq", DEVNAME(sc));
   2921 	sc->sc_ihc = mcx_establish_intr(sc, 0, NULL, mcx_admin_intr, sc,
   2922 	    intrxname);
   2923 	if (sc->sc_ihc == NULL) {
   2924 		aprint_error_dev(self, "couldn't establish adminq interrupt\n");
   2925 		goto teardown;
   2926 	}
   2927 
   2928 	if (mcx_create_eq(sc, &sc->sc_admin_eq, sc->sc_uar,
   2929 	    (1ull << MCX_EVENT_TYPE_INTERNAL_ERROR) |
   2930 	    (1ull << MCX_EVENT_TYPE_PORT_CHANGE) |
   2931 	    (1ull << MCX_EVENT_TYPE_CMD_COMPLETION) |
   2932 	    (1ull << MCX_EVENT_TYPE_PAGE_REQUEST), 0) != 0) {
   2933 		/* error printed by mcx_create_eq */
   2934 		goto teardown;
   2935 	}
   2936 
   2937 	if (mcx_query_nic_vport_context(sc, enaddr) != 0) {
   2938 		/* error printed by mcx_query_nic_vport_context */
   2939 		goto teardown;
   2940 	}
   2941 
   2942 	if (mcx_query_special_contexts(sc) != 0) {
   2943 		/* error printed by mcx_query_special_contexts */
   2944 		goto teardown;
   2945 	}
   2946 
   2947 	if (mcx_set_port_mtu(sc, MCX_HARDMTU) != 0) {
   2948 		/* error printed by mcx_set_port_mtu */
   2949 		goto teardown;
   2950 	}
   2951 
   2952 	aprint_normal_dev(sc->sc_dev, "Ethernet address %s\n",
   2953 	    ether_sprintf(enaddr));
   2954 
   2955 	msix = counts[PCI_INTR_TYPE_MSIX];
   2956 	msix--; /* admin ops took one */
   2957 
   2958 	sc->sc_nqueues = uimin(MCX_MAX_QUEUES, msix);
   2959 	sc->sc_nqueues = uimin(sc->sc_nqueues, ncpu);
   2960 	/* Round down to a power of two.  */
   2961 	sc->sc_nqueues = 1U << ilog2(sc->sc_nqueues);
   2962 	sc->sc_queues = kmem_zalloc(sc->sc_nqueues * sizeof(*sc->sc_queues),
   2963 	    KM_SLEEP);
   2964 
   2965 	strlcpy(ifp->if_xname, DEVNAME(sc), IFNAMSIZ);
   2966 	ifp->if_softc = sc;
   2967 	ifp->if_flags = IFF_BROADCAST | IFF_MULTICAST | IFF_SIMPLEX;
   2968 #ifdef MCX_MPSAFE
   2969 	ifp->if_extflags = IFEF_MPSAFE;
   2970 #endif
   2971 	ifp->if_init = mcx_init;
   2972 	ifp->if_stop = mcx_stop;
   2973 	ifp->if_ioctl = mcx_ioctl;
   2974 	ifp->if_start = mcx_start;
   2975 	if (sc->sc_nqueues > 1) {
   2976 		ifp->if_transmit = mcx_transmit;
   2977 	}
   2978 	ifp->if_mtu = sc->sc_hardmtu;
   2979 	ifp->if_capabilities = IFCAP_CSUM_IPv4_Rx | IFCAP_CSUM_IPv4_Tx |
   2980 	    IFCAP_CSUM_UDPv4_Rx | IFCAP_CSUM_UDPv4_Tx |
   2981 	    IFCAP_CSUM_UDPv6_Rx | IFCAP_CSUM_UDPv6_Tx |
   2982 	    IFCAP_CSUM_TCPv4_Rx | IFCAP_CSUM_TCPv4_Tx |
   2983 	    IFCAP_CSUM_TCPv6_Rx | IFCAP_CSUM_TCPv6_Tx;
   2984 	IFQ_SET_MAXLEN(&ifp->if_snd, 1024);
   2985 	IFQ_SET_READY(&ifp->if_snd);
   2986 
   2987 	sc->sc_ec.ec_capabilities = ETHERCAP_JUMBO_MTU |
   2988 	    ETHERCAP_VLAN_MTU | ETHERCAP_VLAN_HWTAGGING;
   2989 	sc->sc_ec.ec_capenable |= ETHERCAP_VLAN_HWTAGGING;
   2990 
   2991 	sc->sc_ec.ec_ifmedia = &sc->sc_media;
   2992 	ifmedia_init_with_lock(&sc->sc_media, IFM_IMASK, mcx_media_change,
   2993 	    mcx_media_status, &sc->sc_media_mutex);
   2994 	mcx_media_add_types(sc);
   2995 	ifmedia_add(&sc->sc_media, IFM_ETHER | IFM_AUTO, 0, NULL);
   2996 	ifmedia_set(&sc->sc_media, IFM_ETHER | IFM_AUTO);
   2997 
   2998 	if_attach(ifp);
   2999 
   3000 	/* Enable hardware offload by default */
   3001 	memset(&ifcr, 0, sizeof(ifcr));
   3002 	ifcr.ifcr_capenable = ifp->if_capabilities;
   3003 	ifioctl_common(ifp, SIOCSIFCAP, &ifcr);
   3004 
   3005 	if_deferred_start_init(ifp, NULL);
   3006 
   3007 	ether_ifattach(ifp, enaddr);
   3008 
   3009 	kcpuset_create(&affinity, false);
   3010 	kcpuset_set(affinity, 0);
   3011 
   3012 	for (i = 0; i < sc->sc_nqueues; i++) {
   3013 		struct mcx_queues *q = &sc->sc_queues[i];
   3014 		struct mcx_rx *rx = &q->q_rx;
   3015 		struct mcx_tx *tx = &q->q_tx;
   3016 		int vec;
   3017 
   3018 		vec = i + 1;
   3019 		q->q_sc = sc;
   3020 		q->q_index = i;
   3021 
   3022 		if (mcx_alloc_uar(sc, &q->q_uar) != 0) {
   3023 			aprint_error_dev(self, "unable to alloc uar %d\n", i);
   3024 			goto teardown;
   3025 		}
   3026 
   3027 		if (mcx_create_eq(sc, &q->q_eq, q->q_uar, 0, vec) != 0) {
   3028 			aprint_error_dev(self,
   3029 			    "unable to create event queue %d\n", i);
   3030 			goto teardown;
   3031 		}
   3032 
   3033 		rx->rx_softc = sc;
   3034 		callout_init(&rx->rx_refill, CALLOUT_FLAGS);
   3035 		callout_setfunc(&rx->rx_refill, mcx_refill, rx);
   3036 
   3037 		tx->tx_softc = sc;
   3038 		mutex_init(&tx->tx_lock, MUTEX_DEFAULT, IPL_NET);
   3039 		tx->tx_pcq = pcq_create(MCX_TXQ_NUM, KM_SLEEP);
   3040 		tx->tx_softint = softint_establish(SOFTINT_NET|SOFTINT_MPSAFE,
   3041 		    mcx_deferred_transmit, tx);
   3042 
   3043 		snprintf(intrxname, sizeof(intrxname), "%s queue %d",
   3044 		    DEVNAME(sc), i);
   3045 		q->q_ihc = mcx_establish_intr(sc, vec, affinity, mcx_cq_intr,
   3046 		    q, intrxname);
   3047 	}
   3048 
   3049 	callout_init(&sc->sc_calibrate, CALLOUT_FLAGS);
   3050 	callout_setfunc(&sc->sc_calibrate, mcx_calibrate, sc);
   3051 
   3052 	if (workqueue_create(&sc->sc_workq, "mcxportchg", mcx_port_change, sc,
   3053 	    PRI_NONE, IPL_NET, 0) != 0) {
   3054 		aprint_error_dev(self, "couldn't create port change workq\n");
   3055 		goto teardown;
   3056 	}
   3057 
   3058 	mcx_port_change(&sc->sc_port_change, sc);
   3059 
   3060 	sc->sc_mac_flow_table_id = -1;
   3061 	sc->sc_rss_flow_table_id = -1;
   3062 	sc->sc_rqt = -1;
   3063 	for (i = 0; i < MCX_NUM_FLOW_GROUPS; i++) {
   3064 		struct mcx_flow_group *mfg = &sc->sc_flow_group[i];
   3065 		mfg->g_id = -1;
   3066 		mfg->g_table = -1;
   3067 		mfg->g_size = 0;
   3068 		mfg->g_start = 0;
   3069 	}
   3070 	sc->sc_extra_mcast = 0;
   3071 	memset(sc->sc_mcast_flows, 0, sizeof(sc->sc_mcast_flows));
   3072 
   3073 #if NKSTAT > 0
   3074 	mcx_kstat_attach(sc);
   3075 #endif
   3076 	mcx_timecounter_attach(sc);
   3077 	return;
   3078 
   3079 teardown:
   3080 	mcx_teardown_hca(sc, htobe16(MCX_CMD_TEARDOWN_HCA_GRACEFUL));
   3081 	/* error printed by mcx_teardown_hca, and we're already unwinding */
   3082 cqfree:
   3083 	mcx_wr(sc, MCX_CMDQ_ADDR_HI, MCX_DMA_DVA(&sc->sc_cmdq_mem) >> 32);
   3084 	mcx_bar(sc, MCX_CMDQ_ADDR_HI, sizeof(uint64_t),
   3085 	    BUS_SPACE_BARRIER_WRITE);
   3086 	mcx_wr(sc, MCX_CMDQ_ADDR_LO, MCX_DMA_DVA(&sc->sc_cmdq_mem) |
   3087 	    MCX_CMDQ_INTERFACE_DISABLED);
   3088 	mcx_bar(sc, MCX_CMDQ_ADDR_LO, sizeof(uint64_t),
   3089 	    BUS_SPACE_BARRIER_WRITE);
   3090 
   3091 	mcx_wr(sc, MCX_CMDQ_ADDR_HI, 0);
   3092 	mcx_bar(sc, MCX_CMDQ_ADDR_HI, sizeof(uint64_t),
   3093 	    BUS_SPACE_BARRIER_WRITE);
   3094 	mcx_wr(sc, MCX_CMDQ_ADDR_LO, MCX_CMDQ_INTERFACE_DISABLED);
   3095 
   3096 	mcx_dmamem_free(sc, &sc->sc_cmdq_mem);
   3097 dbfree:
   3098 	mcx_dmamem_free(sc, &sc->sc_doorbell_mem);
   3099 unmap:
   3100 	bus_space_unmap(sc->sc_memt, sc->sc_memh, sc->sc_mems);
   3101 	sc->sc_mems = 0;
   3102 }
   3103 
   3104 static void *
   3105 mcx_establish_intr(struct mcx_softc *sc, int index, kcpuset_t *affinity,
   3106     int (*func)(void *), void *arg, const char *xname)
   3107 {
   3108 	char intrbuf[PCI_INTRSTR_LEN];
   3109 	const char *intrstr;
   3110 	void *ih;
   3111 
   3112 	pci_intr_setattr(sc->sc_pc, &sc->sc_intrs[index], PCI_INTR_MPSAFE,
   3113 	    true);
   3114 
   3115 	intrstr = pci_intr_string(sc->sc_pc, sc->sc_intrs[index], intrbuf,
   3116 	    sizeof(intrbuf));
   3117 	ih = pci_intr_establish_xname(sc->sc_pc, sc->sc_intrs[index], IPL_NET,
   3118 	    func, arg, xname);
   3119 	if (ih == NULL) {
   3120 		aprint_error_dev(sc->sc_dev,
   3121 		    "unable to establish interrupt%s%s\n",
   3122 		    intrstr ? " at " : "",
   3123 		    intrstr ? intrstr : "");
   3124 		return NULL;
   3125 	}
   3126 
   3127 	if (affinity != NULL && index > 0) {
   3128 		/* Round-robin affinity */
   3129 		kcpuset_zero(affinity);
   3130 		kcpuset_set(affinity, (index - 1) % ncpu);
   3131 		interrupt_distribute(ih, affinity, NULL);
   3132 	}
   3133 
   3134 	return ih;
   3135 }
   3136 
   3137 static void
   3138 mcx_rxr_init(struct mcx_rxring *rxr, u_int lwm __unused, u_int hwm)
   3139 {
   3140 	rxr->rxr_total = hwm;
   3141 	rxr->rxr_inuse = 0;
   3142 }
   3143 
   3144 static u_int
   3145 mcx_rxr_get(struct mcx_rxring *rxr, u_int max)
   3146 {
   3147 	const u_int taken = MIN(max, rxr->rxr_total - rxr->rxr_inuse);
   3148 
   3149 	rxr->rxr_inuse += taken;
   3150 
   3151 	return taken;
   3152 }
   3153 
   3154 static void
   3155 mcx_rxr_put(struct mcx_rxring *rxr, u_int n)
   3156 {
   3157 	rxr->rxr_inuse -= n;
   3158 }
   3159 
   3160 static u_int
   3161 mcx_rxr_inuse(struct mcx_rxring *rxr)
   3162 {
   3163 	return rxr->rxr_inuse;
   3164 }
   3165 
   3166 static int
   3167 mcx_version(struct mcx_softc *sc)
   3168 {
   3169 	uint32_t fw0, fw1;
   3170 	uint16_t cmdif;
   3171 
   3172 	fw0 = mcx_rd(sc, MCX_FW_VER);
   3173 	fw1 = mcx_rd(sc, MCX_CMDIF_FW_SUBVER);
   3174 
   3175 	aprint_normal_dev(sc->sc_dev, "FW %u.%u.%04u\n", MCX_FW_VER_MAJOR(fw0),
   3176 	    MCX_FW_VER_MINOR(fw0), MCX_FW_VER_SUBMINOR(fw1));
   3177 
   3178 	cmdif = MCX_CMDIF(fw1);
   3179 	if (cmdif != MCX_CMD_IF_SUPPORTED) {
   3180 		aprint_error_dev(sc->sc_dev,
   3181 		    "unsupported command interface %u\n", cmdif);
   3182 		return (-1);
   3183 	}
   3184 
   3185 	return (0);
   3186 }
   3187 
   3188 static int
   3189 mcx_init_wait(struct mcx_softc *sc)
   3190 {
   3191 	unsigned int i;
   3192 	uint32_t r;
   3193 
   3194 	for (i = 0; i < 2000; i++) {
   3195 		r = mcx_rd(sc, MCX_STATE);
   3196 		if ((r & MCX_STATE_MASK) == MCX_STATE_READY)
   3197 			return (0);
   3198 
   3199 		delay(1000);
   3200 		mcx_bar(sc, MCX_STATE, sizeof(uint32_t),
   3201 		    BUS_SPACE_BARRIER_READ);
   3202 	}
   3203 
   3204 	return (-1);
   3205 }
   3206 
   3207 static uint8_t
   3208 mcx_cmdq_poll(struct mcx_softc *sc, struct mcx_cmdq_entry *cqe,
   3209     unsigned int msec)
   3210 {
   3211 	unsigned int i;
   3212 
   3213 	for (i = 0; i < msec; i++) {
   3214 		bus_dmamap_sync(sc->sc_dmat, MCX_DMA_MAP(&sc->sc_cmdq_mem),
   3215 		    0, MCX_DMA_LEN(&sc->sc_cmdq_mem), BUS_DMASYNC_POSTRW);
   3216 
   3217 		if ((cqe->cq_status & MCX_CQ_STATUS_OWN_MASK) ==
   3218 		    MCX_CQ_STATUS_OWN_SW)
   3219 			return (0);
   3220 
   3221 		delay(1000);
   3222 	}
   3223 
   3224 	return (ETIMEDOUT);
   3225 }
   3226 
   3227 static uint32_t
   3228 mcx_mix_u64(uint32_t xor, uint64_t u64)
   3229 {
   3230 	xor ^= u64 >> 32;
   3231 	xor ^= u64;
   3232 
   3233 	return (xor);
   3234 }
   3235 
   3236 static uint32_t
   3237 mcx_mix_u32(uint32_t xor, uint32_t u32)
   3238 {
   3239 	xor ^= u32;
   3240 
   3241 	return (xor);
   3242 }
   3243 
   3244 static uint32_t
   3245 mcx_mix_u8(uint32_t xor, uint8_t u8)
   3246 {
   3247 	xor ^= u8;
   3248 
   3249 	return (xor);
   3250 }
   3251 
   3252 static uint8_t
   3253 mcx_mix_done(uint32_t xor)
   3254 {
   3255 	xor ^= xor >> 16;
   3256 	xor ^= xor >> 8;
   3257 
   3258 	return (xor);
   3259 }
   3260 
   3261 static uint8_t
   3262 mcx_xor(const void *buf, size_t len)
   3263 {
   3264 	const uint32_t *dwords = buf;
   3265 	uint32_t xor = 0xff;
   3266 	size_t i;
   3267 
   3268 	len /= sizeof(*dwords);
   3269 
   3270 	for (i = 0; i < len; i++)
   3271 		xor ^= dwords[i];
   3272 
   3273 	return (mcx_mix_done(xor));
   3274 }
   3275 
   3276 static uint8_t
   3277 mcx_cmdq_token(struct mcx_softc *sc)
   3278 {
   3279 	uint8_t token;
   3280 
   3281 	do {
   3282 		token = ++sc->sc_cmdq_token;
   3283 	} while (token == 0);
   3284 
   3285 	return (token);
   3286 }
   3287 
   3288 static void
   3289 mcx_cmdq_init(struct mcx_softc *sc, struct mcx_cmdq_entry *cqe,
   3290     uint32_t ilen, uint32_t olen, uint8_t token)
   3291 {
   3292 	memset(cqe, 0, sc->sc_cmdq_size);
   3293 
   3294 	cqe->cq_type = MCX_CMDQ_TYPE_PCIE;
   3295 	be32enc(&cqe->cq_input_length, ilen);
   3296 	be32enc(&cqe->cq_output_length, olen);
   3297 	cqe->cq_token = token;
   3298 	cqe->cq_status = MCX_CQ_STATUS_OWN_HW;
   3299 }
   3300 
   3301 static void
   3302 mcx_cmdq_sign(struct mcx_cmdq_entry *cqe)
   3303 {
   3304 	cqe->cq_signature = ~mcx_xor(cqe, sizeof(*cqe));
   3305 }
   3306 
   3307 static int
   3308 mcx_cmdq_verify(const struct mcx_cmdq_entry *cqe)
   3309 {
   3310 	/* return (mcx_xor(cqe, sizeof(*cqe)) ? -1 :  0); */
   3311 	return (0);
   3312 }
   3313 
   3314 static void *
   3315 mcx_cmdq_in(struct mcx_cmdq_entry *cqe)
   3316 {
   3317 	return (&cqe->cq_input_data);
   3318 }
   3319 
   3320 static void *
   3321 mcx_cmdq_out(struct mcx_cmdq_entry *cqe)
   3322 {
   3323 	return (&cqe->cq_output_data);
   3324 }
   3325 
   3326 static void
   3327 mcx_cmdq_post(struct mcx_softc *sc, struct mcx_cmdq_entry *cqe,
   3328     unsigned int slot)
   3329 {
   3330 	mcx_cmdq_sign(cqe);
   3331 
   3332 	bus_dmamap_sync(sc->sc_dmat, MCX_DMA_MAP(&sc->sc_cmdq_mem),
   3333 	    0, MCX_DMA_LEN(&sc->sc_cmdq_mem), BUS_DMASYNC_PRERW);
   3334 
   3335 	mcx_wr(sc, MCX_CMDQ_DOORBELL, 1U << slot);
   3336 	mcx_bar(sc, MCX_CMDQ_DOORBELL, sizeof(uint32_t),
   3337 	    BUS_SPACE_BARRIER_WRITE);
   3338 }
   3339 
   3340 static int
   3341 mcx_enable_hca(struct mcx_softc *sc)
   3342 {
   3343 	struct mcx_cmdq_entry *cqe;
   3344 	struct mcx_cmd_enable_hca_in *in;
   3345 	struct mcx_cmd_enable_hca_out *out;
   3346 	int error;
   3347 	uint8_t status;
   3348 
   3349 	cqe = MCX_DMA_KVA(&sc->sc_cmdq_mem);
   3350 	mcx_cmdq_init(sc, cqe, sizeof(*in), sizeof(*out), mcx_cmdq_token(sc));
   3351 
   3352 	in = mcx_cmdq_in(cqe);
   3353 	in->cmd_opcode = htobe16(MCX_CMD_ENABLE_HCA);
   3354 	in->cmd_op_mod = htobe16(0);
   3355 	in->cmd_function_id = htobe16(0);
   3356 
   3357 	mcx_cmdq_post(sc, cqe, 0);
   3358 
   3359 	error = mcx_cmdq_poll(sc, cqe, 1000);
   3360 	if (error != 0) {
   3361 		printf(", hca enable timeout\n");
   3362 		return (-1);
   3363 	}
   3364 	if (mcx_cmdq_verify(cqe) != 0) {
   3365 		printf(", hca enable command corrupt\n");
   3366 		return (-1);
   3367 	}
   3368 
   3369 	status = cqe->cq_output_data[0];
   3370 	if (status != MCX_CQ_STATUS_OK) {
   3371 		printf(", hca enable failed (%x)\n", status);
   3372 		return (-1);
   3373 	}
   3374 
   3375 	return (0);
   3376 }
   3377 
   3378 static int
   3379 mcx_teardown_hca(struct mcx_softc *sc, uint16_t profile)
   3380 {
   3381 	struct mcx_cmdq_entry *cqe;
   3382 	struct mcx_cmd_teardown_hca_in *in;
   3383 	struct mcx_cmd_teardown_hca_out *out;
   3384 	int error;
   3385 	uint8_t status;
   3386 
   3387 	cqe = MCX_DMA_KVA(&sc->sc_cmdq_mem);
   3388 	mcx_cmdq_init(sc, cqe, sizeof(*in), sizeof(*out), mcx_cmdq_token(sc));
   3389 
   3390 	in = mcx_cmdq_in(cqe);
   3391 	in->cmd_opcode = htobe16(MCX_CMD_TEARDOWN_HCA);
   3392 	in->cmd_op_mod = htobe16(0);
   3393 	in->cmd_profile = profile;
   3394 
   3395 	mcx_cmdq_post(sc, cqe, 0);
   3396 
   3397 	error = mcx_cmdq_poll(sc, cqe, 1000);
   3398 	if (error != 0) {
   3399 		printf(", hca teardown timeout\n");
   3400 		return (-1);
   3401 	}
   3402 	if (mcx_cmdq_verify(cqe) != 0) {
   3403 		printf(", hca teardown command corrupt\n");
   3404 		return (-1);
   3405 	}
   3406 
   3407 	status = cqe->cq_output_data[0];
   3408 	if (status != MCX_CQ_STATUS_OK) {
   3409 		printf(", hca teardown failed (%x)\n", status);
   3410 		return (-1);
   3411 	}
   3412 
   3413 	return (0);
   3414 }
   3415 
   3416 static int
   3417 mcx_cmdq_mboxes_alloc(struct mcx_softc *sc, struct mcx_dmamem *mxm,
   3418     unsigned int nmb, uint64_t *ptr, uint8_t token)
   3419 {
   3420 	uint8_t *kva;
   3421 	uint64_t dva;
   3422 	int i;
   3423 	int error;
   3424 
   3425 	error = mcx_dmamem_alloc(sc, mxm,
   3426 	    nmb * MCX_CMDQ_MAILBOX_SIZE, MCX_CMDQ_MAILBOX_ALIGN);
   3427 	if (error != 0)
   3428 		return (error);
   3429 
   3430 	mcx_dmamem_zero(mxm);
   3431 
   3432 	dva = MCX_DMA_DVA(mxm);
   3433 	kva = MCX_DMA_KVA(mxm);
   3434 	for (i = 0; i < nmb; i++) {
   3435 		struct mcx_cmdq_mailbox *mbox = (struct mcx_cmdq_mailbox *)kva;
   3436 
   3437 		/* patch the cqe or mbox pointing at this one */
   3438 		be64enc(ptr, dva);
   3439 
   3440 		/* fill in this mbox */
   3441 		be32enc(&mbox->mb_block_number, i);
   3442 		mbox->mb_token = token;
   3443 
   3444 		/* move to the next one */
   3445 		ptr = &mbox->mb_next_ptr;
   3446 
   3447 		dva += MCX_CMDQ_MAILBOX_SIZE;
   3448 		kva += MCX_CMDQ_MAILBOX_SIZE;
   3449 	}
   3450 
   3451 	return (0);
   3452 }
   3453 
   3454 static uint32_t
   3455 mcx_cmdq_mbox_ctrl_sig(const struct mcx_cmdq_mailbox *mb)
   3456 {
   3457 	uint32_t xor = 0xff;
   3458 
   3459 	/* only 3 fields get set, so mix them directly */
   3460 	xor = mcx_mix_u64(xor, mb->mb_next_ptr);
   3461 	xor = mcx_mix_u32(xor, mb->mb_block_number);
   3462 	xor = mcx_mix_u8(xor, mb->mb_token);
   3463 
   3464 	return (mcx_mix_done(xor));
   3465 }
   3466 
   3467 static void
   3468 mcx_cmdq_mboxes_sign(struct mcx_dmamem *mxm, unsigned int nmb)
   3469 {
   3470 	uint8_t *kva;
   3471 	int i;
   3472 
   3473 	kva = MCX_DMA_KVA(mxm);
   3474 
   3475 	for (i = 0; i < nmb; i++) {
   3476 		struct mcx_cmdq_mailbox *mb = (struct mcx_cmdq_mailbox *)kva;
   3477 		uint8_t sig = mcx_cmdq_mbox_ctrl_sig(mb);
   3478 		mb->mb_ctrl_signature = sig;
   3479 		mb->mb_signature = sig ^
   3480 		    mcx_xor(mb->mb_data, sizeof(mb->mb_data));
   3481 
   3482 		kva += MCX_CMDQ_MAILBOX_SIZE;
   3483 	}
   3484 }
   3485 
   3486 static void
   3487 mcx_cmdq_mboxes_sync(struct mcx_softc *sc, struct mcx_dmamem *mxm, int ops)
   3488 {
   3489 	bus_dmamap_sync(sc->sc_dmat, MCX_DMA_MAP(mxm),
   3490 	    0, MCX_DMA_LEN(mxm), ops);
   3491 }
   3492 
   3493 static struct mcx_cmdq_mailbox *
   3494 mcx_cq_mbox(struct mcx_dmamem *mxm, unsigned int i)
   3495 {
   3496 	uint8_t *kva;
   3497 
   3498 	kva = MCX_DMA_KVA(mxm);
   3499 	kva += i * MCX_CMDQ_MAILBOX_SIZE;
   3500 
   3501 	return ((struct mcx_cmdq_mailbox *)kva);
   3502 }
   3503 
   3504 static inline void *
   3505 mcx_cq_mbox_data(struct mcx_cmdq_mailbox *mb)
   3506 {
   3507 	return (&mb->mb_data);
   3508 }
   3509 
   3510 static void
   3511 mcx_cmdq_mboxes_copyin(struct mcx_dmamem *mxm, unsigned int nmb,
   3512     void *b, size_t len)
   3513 {
   3514 	uint8_t *buf = b;
   3515 	struct mcx_cmdq_mailbox *mb;
   3516 	int i;
   3517 
   3518 	mb = (struct mcx_cmdq_mailbox *)MCX_DMA_KVA(mxm);
   3519 	for (i = 0; i < nmb; i++) {
   3520 
   3521 		memcpy(mb->mb_data, buf, uimin(sizeof(mb->mb_data), len));
   3522 
   3523 		if (sizeof(mb->mb_data) >= len)
   3524 			break;
   3525 
   3526 		buf += sizeof(mb->mb_data);
   3527 		len -= sizeof(mb->mb_data);
   3528 		mb++;
   3529 	}
   3530 }
   3531 
   3532 static void
   3533 mcx_cmdq_mboxes_pas(struct mcx_dmamem *mxm, int offset, int npages,
   3534     struct mcx_dmamem *buf)
   3535 {
   3536 	uint64_t *pas;
   3537 	int mbox, mbox_pages, i;
   3538 
   3539 	mbox = offset / MCX_CMDQ_MAILBOX_DATASIZE;
   3540 	offset %= MCX_CMDQ_MAILBOX_DATASIZE;
   3541 
   3542 	pas = mcx_cq_mbox_data(mcx_cq_mbox(mxm, mbox));
   3543 	pas += (offset / sizeof(*pas));
   3544 	mbox_pages = (MCX_CMDQ_MAILBOX_DATASIZE - offset) / sizeof(*pas);
   3545 	for (i = 0; i < npages; i++) {
   3546 		if (i == mbox_pages) {
   3547 			mbox++;
   3548 			pas = mcx_cq_mbox_data(mcx_cq_mbox(mxm, mbox));
   3549 			mbox_pages += MCX_CMDQ_MAILBOX_DATASIZE / sizeof(*pas);
   3550 		}
   3551 		*pas = htobe64(MCX_DMA_DVA(buf) + (i * MCX_PAGE_SIZE));
   3552 		pas++;
   3553 	}
   3554 }
   3555 
   3556 static void
   3557 mcx_cmdq_mboxes_copyout(struct mcx_dmamem *mxm, int nmb, void *b, size_t len)
   3558 {
   3559 	uint8_t *buf = b;
   3560 	struct mcx_cmdq_mailbox *mb;
   3561 	int i;
   3562 
   3563 	mb = (struct mcx_cmdq_mailbox *)MCX_DMA_KVA(mxm);
   3564 	for (i = 0; i < nmb; i++) {
   3565 		memcpy(buf, mb->mb_data, uimin(sizeof(mb->mb_data), len));
   3566 
   3567 		if (sizeof(mb->mb_data) >= len)
   3568 			break;
   3569 
   3570 		buf += sizeof(mb->mb_data);
   3571 		len -= sizeof(mb->mb_data);
   3572 		mb++;
   3573 	}
   3574 }
   3575 
   3576 static void
   3577 mcx_cq_mboxes_free(struct mcx_softc *sc, struct mcx_dmamem *mxm)
   3578 {
   3579 	mcx_dmamem_free(sc, mxm);
   3580 }
   3581 
   3582 #if 0
   3583 static void
   3584 mcx_cmdq_dump(const struct mcx_cmdq_entry *cqe)
   3585 {
   3586 	unsigned int i;
   3587 
   3588 	printf(" type %02x, ilen %u, iptr %016llx", cqe->cq_type,
   3589 	    be32dec(&cqe->cq_input_length), be64dec(&cqe->cq_input_ptr));
   3590 
   3591 	printf(", idata ");
   3592 	for (i = 0; i < sizeof(cqe->cq_input_data); i++)
   3593 		printf("%02x", cqe->cq_input_data[i]);
   3594 
   3595 	printf(", odata ");
   3596 	for (i = 0; i < sizeof(cqe->cq_output_data); i++)
   3597 		printf("%02x", cqe->cq_output_data[i]);
   3598 
   3599 	printf(", optr %016llx, olen %u, token %02x, sig %02x, status %02x",
   3600 	    be64dec(&cqe->cq_output_ptr), be32dec(&cqe->cq_output_length),
   3601 	    cqe->cq_token, cqe->cq_signature, cqe->cq_status);
   3602 }
   3603 
   3604 static void
   3605 mcx_cmdq_mbox_dump(struct mcx_dmamem *mboxes, int num)
   3606 {
   3607 	int i, j;
   3608 	uint8_t *d;
   3609 
   3610 	for (i = 0; i < num; i++) {
   3611 		struct mcx_cmdq_mailbox *mbox;
   3612 		mbox = mcx_cq_mbox(mboxes, i);
   3613 
   3614 		d = mcx_cq_mbox_data(mbox);
   3615 		for (j = 0; j < MCX_CMDQ_MAILBOX_DATASIZE; j++) {
   3616 			if (j != 0 && (j % 16 == 0))
   3617 				printf("\n");
   3618 			printf("%.2x ", d[j]);
   3619 		}
   3620 	}
   3621 }
   3622 #endif
   3623 
   3624 static int
   3625 mcx_access_hca_reg(struct mcx_softc *sc, uint16_t reg, int op, void *data,
   3626     int len)
   3627 {
   3628 	struct mcx_dmamem mxm;
   3629 	struct mcx_cmdq_entry *cqe;
   3630 	struct mcx_cmd_access_reg_in *in;
   3631 	struct mcx_cmd_access_reg_out *out;
   3632 	uint8_t token = mcx_cmdq_token(sc);
   3633 	int error, nmb;
   3634 
   3635 	cqe = MCX_DMA_KVA(&sc->sc_cmdq_mem);
   3636 	mcx_cmdq_init(sc, cqe, sizeof(*in) + len, sizeof(*out) + len,
   3637 	    token);
   3638 
   3639 	in = mcx_cmdq_in(cqe);
   3640 	in->cmd_opcode = htobe16(MCX_CMD_ACCESS_REG);
   3641 	in->cmd_op_mod = htobe16(op);
   3642 	in->cmd_register_id = htobe16(reg);
   3643 
   3644 	nmb = howmany(len, MCX_CMDQ_MAILBOX_DATASIZE);
   3645 	if (mcx_cmdq_mboxes_alloc(sc, &mxm, nmb,
   3646 	    &cqe->cq_output_ptr, token) != 0) {
   3647 		printf(", unable to allocate access reg mailboxen\n");
   3648 		return (-1);
   3649 	}
   3650 	cqe->cq_input_ptr = cqe->cq_output_ptr;
   3651 	mcx_cmdq_mboxes_copyin(&mxm, nmb, data, len);
   3652 	mcx_cmdq_mboxes_sign(&mxm, nmb);
   3653 	mcx_cmdq_mboxes_sync(sc, &mxm, BUS_DMASYNC_PRERW);
   3654 
   3655 	mcx_cmdq_post(sc, cqe, 0);
   3656 	error = mcx_cmdq_poll(sc, cqe, 1000);
   3657 	mcx_cmdq_mboxes_sync(sc, &mxm, BUS_DMASYNC_POSTRW);
   3658 
   3659 	if (error != 0) {
   3660 		printf("%s: access reg (%s %x) timeout\n", DEVNAME(sc),
   3661 		    (op == MCX_REG_OP_WRITE ? "write" : "read"), reg);
   3662 		goto free;
   3663 	}
   3664 	error = mcx_cmdq_verify(cqe);
   3665 	if (error != 0) {
   3666 		printf("%s: access reg (%s %x) reply corrupt\n",
   3667 		    (op == MCX_REG_OP_WRITE ? "write" : "read"), DEVNAME(sc),
   3668 		    reg);
   3669 		goto free;
   3670 	}
   3671 
   3672 	out = mcx_cmdq_out(cqe);
   3673 	if (out->cmd_status != MCX_CQ_STATUS_OK) {
   3674 		printf("%s: access reg (%s %x) failed (%x, %.6x)\n",
   3675 		    DEVNAME(sc), (op == MCX_REG_OP_WRITE ? "write" : "read"),
   3676 		    reg, out->cmd_status, be32toh(out->cmd_syndrome));
   3677 		error = -1;
   3678 		goto free;
   3679 	}
   3680 
   3681 	mcx_cmdq_mboxes_copyout(&mxm, nmb, data, len);
   3682 free:
   3683 	mcx_dmamem_free(sc, &mxm);
   3684 
   3685 	return (error);
   3686 }
   3687 
   3688 static int
   3689 mcx_set_issi(struct mcx_softc *sc, struct mcx_cmdq_entry *cqe,
   3690     unsigned int slot)
   3691 {
   3692 	struct mcx_cmd_set_issi_in *in;
   3693 	struct mcx_cmd_set_issi_out *out;
   3694 	uint8_t status;
   3695 
   3696 	mcx_cmdq_init(sc, cqe, sizeof(*in), sizeof(*out), mcx_cmdq_token(sc));
   3697 
   3698 	in = mcx_cmdq_in(cqe);
   3699 	in->cmd_opcode = htobe16(MCX_CMD_SET_ISSI);
   3700 	in->cmd_op_mod = htobe16(0);
   3701 	in->cmd_current_issi = htobe16(MCX_ISSI);
   3702 
   3703 	mcx_cmdq_post(sc, cqe, slot);
   3704 	if (mcx_cmdq_poll(sc, cqe, 1000) != 0)
   3705 		return (-1);
   3706 	if (mcx_cmdq_verify(cqe) != 0)
   3707 		return (-1);
   3708 
   3709 	status = cqe->cq_output_data[0];
   3710 	if (status != MCX_CQ_STATUS_OK)
   3711 		return (-1);
   3712 
   3713 	return (0);
   3714 }
   3715 
   3716 static int
   3717 mcx_issi(struct mcx_softc *sc)
   3718 {
   3719 	struct mcx_dmamem mxm;
   3720 	struct mcx_cmdq_entry *cqe;
   3721 	struct mcx_cmd_query_issi_in *in;
   3722 	struct mcx_cmd_query_issi_il_out *out;
   3723 	struct mcx_cmd_query_issi_mb_out *mb;
   3724 	uint8_t token = mcx_cmdq_token(sc);
   3725 	uint8_t status;
   3726 	int error;
   3727 
   3728 	cqe = MCX_DMA_KVA(&sc->sc_cmdq_mem);
   3729 	mcx_cmdq_init(sc, cqe, sizeof(*in), sizeof(*out) + sizeof(*mb), token);
   3730 
   3731 	in = mcx_cmdq_in(cqe);
   3732 	in->cmd_opcode = htobe16(MCX_CMD_QUERY_ISSI);
   3733 	in->cmd_op_mod = htobe16(0);
   3734 
   3735 	CTASSERT(sizeof(*mb) <= MCX_CMDQ_MAILBOX_DATASIZE);
   3736 	if (mcx_cmdq_mboxes_alloc(sc, &mxm, 1,
   3737 	    &cqe->cq_output_ptr, token) != 0) {
   3738 		printf(", unable to allocate query issi mailbox\n");
   3739 		return (-1);
   3740 	}
   3741 	mcx_cmdq_mboxes_sign(&mxm, 1);
   3742 
   3743 	mcx_cmdq_post(sc, cqe, 0);
   3744 	error = mcx_cmdq_poll(sc, cqe, 1000);
   3745 	if (error != 0) {
   3746 		printf(", query issi timeout\n");
   3747 		goto free;
   3748 	}
   3749 	error = mcx_cmdq_verify(cqe);
   3750 	if (error != 0) {
   3751 		printf(", query issi reply corrupt\n");
   3752 		goto free;
   3753 	}
   3754 
   3755 	status = cqe->cq_output_data[0];
   3756 	switch (status) {
   3757 	case MCX_CQ_STATUS_OK:
   3758 		break;
   3759 	case MCX_CQ_STATUS_BAD_OPCODE:
   3760 		/* use ISSI 0 */
   3761 		goto free;
   3762 	default:
   3763 		printf(", query issi failed (%x)\n", status);
   3764 		error = -1;
   3765 		goto free;
   3766 	}
   3767 
   3768 	out = mcx_cmdq_out(cqe);
   3769 	if (out->cmd_current_issi == htobe16(MCX_ISSI)) {
   3770 		/* use ISSI 1 */
   3771 		goto free;
   3772 	}
   3773 
   3774 	/* don't need to read cqe anymore, can be used for SET ISSI */
   3775 
   3776 	mb = mcx_cq_mbox_data(mcx_cq_mbox(&mxm, 0));
   3777 	CTASSERT(MCX_ISSI < NBBY);
   3778 	 /* XXX math is hard */
   3779 	if (!ISSET(mb->cmd_supported_issi[79], 1 << MCX_ISSI)) {
   3780 		/* use ISSI 0 */
   3781 		goto free;
   3782 	}
   3783 
   3784 	if (mcx_set_issi(sc, cqe, 0) != 0) {
   3785 		/* ignore the error, just use ISSI 0 */
   3786 	} else {
   3787 		/* use ISSI 1 */
   3788 	}
   3789 
   3790 free:
   3791 	mcx_cq_mboxes_free(sc, &mxm);
   3792 	return (error);
   3793 }
   3794 
   3795 static int
   3796 mcx_query_pages(struct mcx_softc *sc, uint16_t type,
   3797     int32_t *npages, uint16_t *func_id)
   3798 {
   3799 	struct mcx_cmdq_entry *cqe;
   3800 	struct mcx_cmd_query_pages_in *in;
   3801 	struct mcx_cmd_query_pages_out *out;
   3802 
   3803 	cqe = MCX_DMA_KVA(&sc->sc_cmdq_mem);
   3804 	mcx_cmdq_init(sc, cqe, sizeof(*in), sizeof(*out), mcx_cmdq_token(sc));
   3805 
   3806 	in = mcx_cmdq_in(cqe);
   3807 	in->cmd_opcode = htobe16(MCX_CMD_QUERY_PAGES);
   3808 	in->cmd_op_mod = type;
   3809 
   3810 	mcx_cmdq_post(sc, cqe, 0);
   3811 	if (mcx_cmdq_poll(sc, cqe, 1000) != 0) {
   3812 		printf(", query pages timeout\n");
   3813 		return (-1);
   3814 	}
   3815 	if (mcx_cmdq_verify(cqe) != 0) {
   3816 		printf(", query pages reply corrupt\n");
   3817 		return (-1);
   3818 	}
   3819 
   3820 	out = mcx_cmdq_out(cqe);
   3821 	if (out->cmd_status != MCX_CQ_STATUS_OK) {
   3822 		printf(", query pages failed (%x)\n", out->cmd_status);
   3823 		return (-1);
   3824 	}
   3825 
   3826 	*func_id = out->cmd_func_id;
   3827 	*npages = be32dec(&out->cmd_num_pages);
   3828 
   3829 	return (0);
   3830 }
   3831 
   3832 struct bus_dma_iter {
   3833 	bus_dmamap_t		i_map;
   3834 	bus_size_t		i_offset;
   3835 	unsigned int		i_index;
   3836 };
   3837 
   3838 static void
   3839 bus_dma_iter_init(struct bus_dma_iter *i, bus_dmamap_t map)
   3840 {
   3841 	i->i_map = map;
   3842 	i->i_offset = 0;
   3843 	i->i_index = 0;
   3844 }
   3845 
   3846 static bus_addr_t
   3847 bus_dma_iter_addr(struct bus_dma_iter *i)
   3848 {
   3849 	return (i->i_map->dm_segs[i->i_index].ds_addr + i->i_offset);
   3850 }
   3851 
   3852 static void
   3853 bus_dma_iter_add(struct bus_dma_iter *i, bus_size_t size)
   3854 {
   3855 	bus_dma_segment_t *seg = i->i_map->dm_segs + i->i_index;
   3856 	bus_size_t diff;
   3857 
   3858 	do {
   3859 		diff = seg->ds_len - i->i_offset;
   3860 		if (size < diff)
   3861 			break;
   3862 
   3863 		size -= diff;
   3864 
   3865 		seg++;
   3866 
   3867 		i->i_offset = 0;
   3868 		i->i_index++;
   3869 	} while (size > 0);
   3870 
   3871 	i->i_offset += size;
   3872 }
   3873 
   3874 static int
   3875 mcx_add_pages(struct mcx_softc *sc, struct mcx_hwmem *mhm, uint16_t func_id)
   3876 {
   3877 	struct mcx_dmamem mxm;
   3878 	struct mcx_cmdq_entry *cqe;
   3879 	struct mcx_cmd_manage_pages_in *in;
   3880 	struct mcx_cmd_manage_pages_out *out;
   3881 	unsigned int paslen, nmb, i, j, npages;
   3882 	struct bus_dma_iter iter;
   3883 	uint64_t *pas;
   3884 	uint8_t status;
   3885 	uint8_t token = mcx_cmdq_token(sc);
   3886 	int error;
   3887 
   3888 	npages = mhm->mhm_npages;
   3889 
   3890 	paslen = sizeof(*pas) * npages;
   3891 	nmb = howmany(paslen, MCX_CMDQ_MAILBOX_DATASIZE);
   3892 
   3893 	cqe = MCX_DMA_KVA(&sc->sc_cmdq_mem);
   3894 	mcx_cmdq_init(sc, cqe, sizeof(*in) + paslen, sizeof(*out), token);
   3895 
   3896 	in = mcx_cmdq_in(cqe);
   3897 	in->cmd_opcode = htobe16(MCX_CMD_MANAGE_PAGES);
   3898 	in->cmd_op_mod = htobe16(MCX_CMD_MANAGE_PAGES_ALLOC_SUCCESS);
   3899 	in->cmd_func_id = func_id;
   3900 	be32enc(&in->cmd_input_num_entries, npages);
   3901 
   3902 	if (mcx_cmdq_mboxes_alloc(sc, &mxm, nmb,
   3903 	    &cqe->cq_input_ptr, token) != 0) {
   3904 		printf(", unable to allocate manage pages mailboxen\n");
   3905 		return (-1);
   3906 	}
   3907 
   3908 	bus_dma_iter_init(&iter, mhm->mhm_map);
   3909 	for (i = 0; i < nmb; i++) {
   3910 		unsigned int lim;
   3911 
   3912 		pas = mcx_cq_mbox_data(mcx_cq_mbox(&mxm, i));
   3913 		lim = uimin(MCX_CMDQ_MAILBOX_DATASIZE / sizeof(*pas), npages);
   3914 
   3915 		for (j = 0; j < lim; j++) {
   3916 			be64enc(&pas[j], bus_dma_iter_addr(&iter));
   3917 			bus_dma_iter_add(&iter, MCX_PAGE_SIZE);
   3918 		}
   3919 
   3920 		npages -= lim;
   3921 	}
   3922 
   3923 	mcx_cmdq_mboxes_sign(&mxm, nmb);
   3924 
   3925 	mcx_cmdq_post(sc, cqe, 0);
   3926 	error = mcx_cmdq_poll(sc, cqe, 1000);
   3927 	if (error != 0) {
   3928 		printf(", manage pages timeout\n");
   3929 		goto free;
   3930 	}
   3931 	error = mcx_cmdq_verify(cqe);
   3932 	if (error != 0) {
   3933 		printf(", manage pages reply corrupt\n");
   3934 		goto free;
   3935 	}
   3936 
   3937 	status = cqe->cq_output_data[0];
   3938 	if (status != MCX_CQ_STATUS_OK) {
   3939 		printf(", manage pages failed (%x)\n", status);
   3940 		error = -1;
   3941 		goto free;
   3942 	}
   3943 
   3944 free:
   3945 	mcx_dmamem_free(sc, &mxm);
   3946 
   3947 	return (error);
   3948 }
   3949 
   3950 static int
   3951 mcx_pages(struct mcx_softc *sc, struct mcx_hwmem *mhm, uint16_t type)
   3952 {
   3953 	int32_t npages;
   3954 	uint16_t func_id;
   3955 
   3956 	if (mcx_query_pages(sc, type, &npages, &func_id) != 0) {
   3957 		/* error printed by mcx_query_pages */
   3958 		return (-1);
   3959 	}
   3960 
   3961 	if (npages < 1)
   3962 		return (0);
   3963 
   3964 	if (mcx_hwmem_alloc(sc, mhm, npages) != 0) {
   3965 		printf(", unable to allocate hwmem\n");
   3966 		return (-1);
   3967 	}
   3968 
   3969 	if (mcx_add_pages(sc, mhm, func_id) != 0) {
   3970 		printf(", unable to add hwmem\n");
   3971 		goto free;
   3972 	}
   3973 
   3974 	return (0);
   3975 
   3976 free:
   3977 	mcx_hwmem_free(sc, mhm);
   3978 
   3979 	return (-1);
   3980 }
   3981 
   3982 static int
   3983 mcx_hca_max_caps(struct mcx_softc *sc)
   3984 {
   3985 	struct mcx_dmamem mxm;
   3986 	struct mcx_cmdq_entry *cqe;
   3987 	struct mcx_cmd_query_hca_cap_in *in;
   3988 	struct mcx_cmd_query_hca_cap_out *out;
   3989 	struct mcx_cmdq_mailbox *mb;
   3990 	struct mcx_cap_device *hca;
   3991 	uint8_t status;
   3992 	uint8_t token = mcx_cmdq_token(sc);
   3993 	int error;
   3994 
   3995 	cqe = MCX_DMA_KVA(&sc->sc_cmdq_mem);
   3996 	mcx_cmdq_init(sc, cqe, sizeof(*in), sizeof(*out) + MCX_HCA_CAP_LEN,
   3997 	    token);
   3998 
   3999 	in = mcx_cmdq_in(cqe);
   4000 	in->cmd_opcode = htobe16(MCX_CMD_QUERY_HCA_CAP);
   4001 	in->cmd_op_mod = htobe16(MCX_CMD_QUERY_HCA_CAP_MAX |
   4002 	    MCX_CMD_QUERY_HCA_CAP_DEVICE);
   4003 
   4004 	if (mcx_cmdq_mboxes_alloc(sc, &mxm, MCX_HCA_CAP_NMAILBOXES,
   4005 	    &cqe->cq_output_ptr, token) != 0) {
   4006 		printf(", unable to allocate query hca caps mailboxen\n");
   4007 		return (-1);
   4008 	}
   4009 	mcx_cmdq_mboxes_sign(&mxm, MCX_HCA_CAP_NMAILBOXES);
   4010 	mcx_cmdq_mboxes_sync(sc, &mxm, BUS_DMASYNC_PRERW);
   4011 
   4012 	mcx_cmdq_post(sc, cqe, 0);
   4013 	error = mcx_cmdq_poll(sc, cqe, 1000);
   4014 	mcx_cmdq_mboxes_sync(sc, &mxm, BUS_DMASYNC_POSTRW);
   4015 
   4016 	if (error != 0) {
   4017 		printf(", query hca caps timeout\n");
   4018 		goto free;
   4019 	}
   4020 	error = mcx_cmdq_verify(cqe);
   4021 	if (error != 0) {
   4022 		printf(", query hca caps reply corrupt\n");
   4023 		goto free;
   4024 	}
   4025 
   4026 	status = cqe->cq_output_data[0];
   4027 	if (status != MCX_CQ_STATUS_OK) {
   4028 		printf(", query hca caps failed (%x)\n", status);
   4029 		error = -1;
   4030 		goto free;
   4031 	}
   4032 
   4033 	mb = mcx_cq_mbox(&mxm, 0);
   4034 	hca = mcx_cq_mbox_data(mb);
   4035 
   4036 	if ((hca->port_type & MCX_CAP_DEVICE_PORT_TYPE)
   4037 	    != MCX_CAP_DEVICE_PORT_TYPE_ETH) {
   4038 		printf(", not in ethernet mode\n");
   4039 		error = -1;
   4040 		goto free;
   4041 	}
   4042 	if (hca->log_pg_sz > PAGE_SHIFT) {
   4043 		printf(", minimum system page shift %u is too large\n",
   4044 		    hca->log_pg_sz);
   4045 		error = -1;
   4046 		goto free;
   4047 	}
   4048 	/*
   4049 	 * blueflame register is split into two buffers, and we must alternate
   4050 	 * between the two of them.
   4051 	 */
   4052 	sc->sc_bf_size = (1 << hca->log_bf_reg_size) / 2;
   4053 	sc->sc_max_rqt_size = (1 << hca->log_max_rqt_size);
   4054 
   4055 	if (hca->local_ca_ack_delay & MCX_CAP_DEVICE_MCAM_REG)
   4056 		sc->sc_mcam_reg = 1;
   4057 
   4058 	sc->sc_mhz = be32dec(&hca->device_frequency_mhz);
   4059 	sc->sc_khz = be32dec(&hca->device_frequency_khz);
   4060 
   4061 free:
   4062 	mcx_dmamem_free(sc, &mxm);
   4063 
   4064 	return (error);
   4065 }
   4066 
   4067 static int
   4068 mcx_hca_set_caps(struct mcx_softc *sc)
   4069 {
   4070 	struct mcx_dmamem mxm;
   4071 	struct mcx_cmdq_entry *cqe;
   4072 	struct mcx_cmd_query_hca_cap_in *in;
   4073 	struct mcx_cmd_query_hca_cap_out *out;
   4074 	struct mcx_cmdq_mailbox *mb;
   4075 	struct mcx_cap_device *hca;
   4076 	uint8_t status;
   4077 	uint8_t token = mcx_cmdq_token(sc);
   4078 	int error;
   4079 
   4080 	cqe = MCX_DMA_KVA(&sc->sc_cmdq_mem);
   4081 	mcx_cmdq_init(sc, cqe, sizeof(*in), sizeof(*out) + MCX_HCA_CAP_LEN,
   4082 	    token);
   4083 
   4084 	in = mcx_cmdq_in(cqe);
   4085 	in->cmd_opcode = htobe16(MCX_CMD_QUERY_HCA_CAP);
   4086 	in->cmd_op_mod = htobe16(MCX_CMD_QUERY_HCA_CAP_CURRENT |
   4087 	    MCX_CMD_QUERY_HCA_CAP_DEVICE);
   4088 
   4089 	if (mcx_cmdq_mboxes_alloc(sc, &mxm, MCX_HCA_CAP_NMAILBOXES,
   4090 	    &cqe->cq_output_ptr, token) != 0) {
   4091 		printf(", unable to allocate manage pages mailboxen\n");
   4092 		return (-1);
   4093 	}
   4094 	mcx_cmdq_mboxes_sign(&mxm, MCX_HCA_CAP_NMAILBOXES);
   4095 	mcx_cmdq_mboxes_sync(sc, &mxm, BUS_DMASYNC_PRERW);
   4096 
   4097 	mcx_cmdq_post(sc, cqe, 0);
   4098 	error = mcx_cmdq_poll(sc, cqe, 1000);
   4099 	mcx_cmdq_mboxes_sync(sc, &mxm, BUS_DMASYNC_POSTRW);
   4100 
   4101 	if (error != 0) {
   4102 		printf(", query hca caps timeout\n");
   4103 		goto free;
   4104 	}
   4105 	error = mcx_cmdq_verify(cqe);
   4106 	if (error != 0) {
   4107 		printf(", query hca caps reply corrupt\n");
   4108 		goto free;
   4109 	}
   4110 
   4111 	status = cqe->cq_output_data[0];
   4112 	if (status != MCX_CQ_STATUS_OK) {
   4113 		printf(", query hca caps failed (%x)\n", status);
   4114 		error = -1;
   4115 		goto free;
   4116 	}
   4117 
   4118 	mb = mcx_cq_mbox(&mxm, 0);
   4119 	hca = mcx_cq_mbox_data(mb);
   4120 
   4121 	hca->log_pg_sz = PAGE_SHIFT;
   4122 
   4123 free:
   4124 	mcx_dmamem_free(sc, &mxm);
   4125 
   4126 	return (error);
   4127 }
   4128 
   4129 
   4130 static int
   4131 mcx_init_hca(struct mcx_softc *sc)
   4132 {
   4133 	struct mcx_cmdq_entry *cqe;
   4134 	struct mcx_cmd_init_hca_in *in;
   4135 	struct mcx_cmd_init_hca_out *out;
   4136 	int error;
   4137 	uint8_t status;
   4138 
   4139 	cqe = MCX_DMA_KVA(&sc->sc_cmdq_mem);
   4140 	mcx_cmdq_init(sc, cqe, sizeof(*in), sizeof(*out), mcx_cmdq_token(sc));
   4141 
   4142 	in = mcx_cmdq_in(cqe);
   4143 	in->cmd_opcode = htobe16(MCX_CMD_INIT_HCA);
   4144 	in->cmd_op_mod = htobe16(0);
   4145 
   4146 	mcx_cmdq_post(sc, cqe, 0);
   4147 
   4148 	error = mcx_cmdq_poll(sc, cqe, 1000);
   4149 	if (error != 0) {
   4150 		printf(", hca init timeout\n");
   4151 		return (-1);
   4152 	}
   4153 	if (mcx_cmdq_verify(cqe) != 0) {
   4154 		printf(", hca init command corrupt\n");
   4155 		return (-1);
   4156 	}
   4157 
   4158 	status = cqe->cq_output_data[0];
   4159 	if (status != MCX_CQ_STATUS_OK) {
   4160 		printf(", hca init failed (%x)\n", status);
   4161 		return (-1);
   4162 	}
   4163 
   4164 	return (0);
   4165 }
   4166 
   4167 static int
   4168 mcx_set_driver_version(struct mcx_softc *sc)
   4169 {
   4170 	struct mcx_dmamem mxm;
   4171 	struct mcx_cmdq_entry *cqe;
   4172 	struct mcx_cmd_set_driver_version_in *in;
   4173 	struct mcx_cmd_set_driver_version_out *out;
   4174 	int error;
   4175 	int token;
   4176 	uint8_t status;
   4177 
   4178 	cqe = MCX_DMA_KVA(&sc->sc_cmdq_mem);
   4179 	token = mcx_cmdq_token(sc);
   4180 	mcx_cmdq_init(sc, cqe, sizeof(*in) +
   4181 	    sizeof(struct mcx_cmd_set_driver_version), sizeof(*out), token);
   4182 
   4183 	in = mcx_cmdq_in(cqe);
   4184 	in->cmd_opcode = htobe16(MCX_CMD_SET_DRIVER_VERSION);
   4185 	in->cmd_op_mod = htobe16(0);
   4186 
   4187 	if (mcx_cmdq_mboxes_alloc(sc, &mxm, 1,
   4188 	    &cqe->cq_input_ptr, token) != 0) {
   4189 		printf(", unable to allocate set driver version mailboxen\n");
   4190 		return (-1);
   4191 	}
   4192 	strlcpy(mcx_cq_mbox_data(mcx_cq_mbox(&mxm, 0)),
   4193 	    "OpenBSD,mcx,1.000.000000", MCX_CMDQ_MAILBOX_DATASIZE);
   4194 
   4195 	mcx_cmdq_mboxes_sign(&mxm, 1);
   4196 	mcx_cmdq_post(sc, cqe, 0);
   4197 
   4198 	error = mcx_cmdq_poll(sc, cqe, 1000);
   4199 	if (error != 0) {
   4200 		printf(", set driver version timeout\n");
   4201 		goto free;
   4202 	}
   4203 	if (mcx_cmdq_verify(cqe) != 0) {
   4204 		printf(", set driver version command corrupt\n");
   4205 		goto free;
   4206 	}
   4207 
   4208 	status = cqe->cq_output_data[0];
   4209 	if (status != MCX_CQ_STATUS_OK) {
   4210 		printf(", set driver version failed (%x)\n", status);
   4211 		error = -1;
   4212 		goto free;
   4213 	}
   4214 
   4215 free:
   4216 	mcx_dmamem_free(sc, &mxm);
   4217 
   4218 	return (error);
   4219 }
   4220 
   4221 static int
   4222 mcx_iff(struct mcx_softc *sc)
   4223 {
   4224 	struct ifnet *ifp = &sc->sc_ec.ec_if;
   4225 	struct mcx_dmamem mxm;
   4226 	struct mcx_cmdq_entry *cqe;
   4227 	struct mcx_cmd_modify_nic_vport_context_in *in;
   4228 	struct mcx_cmd_modify_nic_vport_context_out *out;
   4229 	struct mcx_nic_vport_ctx *ctx;
   4230 	int error;
   4231 	int token;
   4232 	int insize;
   4233 	uint32_t dest;
   4234 
   4235 	dest = MCX_FLOW_CONTEXT_DEST_TYPE_TABLE |
   4236 	    sc->sc_rss_flow_table_id;
   4237 
   4238 	/* enable or disable the promisc flow */
   4239 	if (ISSET(ifp->if_flags, IFF_PROMISC)) {
   4240 		if (sc->sc_promisc_flow_enabled == 0) {
   4241 			mcx_set_flow_table_entry_mac(sc,
   4242 			    MCX_FLOW_GROUP_PROMISC, 0, NULL, dest);
   4243 			sc->sc_promisc_flow_enabled = 1;
   4244 		}
   4245 	} else if (sc->sc_promisc_flow_enabled != 0) {
   4246 		mcx_delete_flow_table_entry(sc, MCX_FLOW_GROUP_PROMISC, 0);
   4247 		sc->sc_promisc_flow_enabled = 0;
   4248 	}
   4249 
   4250 	/* enable or disable the all-multicast flow */
   4251 	if (ISSET(ifp->if_flags, IFF_ALLMULTI)) {
   4252 		if (sc->sc_allmulti_flow_enabled == 0) {
   4253 			uint8_t mcast[ETHER_ADDR_LEN];
   4254 
   4255 			memset(mcast, 0, sizeof(mcast));
   4256 			mcast[0] = 0x01;
   4257 			mcx_set_flow_table_entry_mac(sc,
   4258 			    MCX_FLOW_GROUP_ALLMULTI, 0, mcast, dest);
   4259 			sc->sc_allmulti_flow_enabled = 1;
   4260 		}
   4261 	} else if (sc->sc_allmulti_flow_enabled != 0) {
   4262 		mcx_delete_flow_table_entry(sc, MCX_FLOW_GROUP_ALLMULTI, 0);
   4263 		sc->sc_allmulti_flow_enabled = 0;
   4264 	}
   4265 
   4266 	insize = sizeof(struct mcx_nic_vport_ctx) + 240;
   4267 
   4268 	cqe = MCX_DMA_KVA(&sc->sc_cmdq_mem);
   4269 	token = mcx_cmdq_token(sc);
   4270 	mcx_cmdq_init(sc, cqe, sizeof(*in) + insize, sizeof(*out), token);
   4271 
   4272 	in = mcx_cmdq_in(cqe);
   4273 	in->cmd_opcode = htobe16(MCX_CMD_MODIFY_NIC_VPORT_CONTEXT);
   4274 	in->cmd_op_mod = htobe16(0);
   4275 	in->cmd_field_select = htobe32(
   4276 	    MCX_CMD_MODIFY_NIC_VPORT_CONTEXT_FIELD_PROMISC |
   4277 	    MCX_CMD_MODIFY_NIC_VPORT_CONTEXT_FIELD_MTU);
   4278 
   4279 	if (mcx_cmdq_mboxes_alloc(sc, &mxm, 1, &cqe->cq_input_ptr, token) != 0) {
   4280 		printf(", unable to allocate modify "
   4281 		    "nic vport context mailboxen\n");
   4282 		return (-1);
   4283 	}
   4284 	ctx = (struct mcx_nic_vport_ctx *)
   4285 	    (((char *)mcx_cq_mbox_data(mcx_cq_mbox(&mxm, 0))) + 240);
   4286 	ctx->vp_mtu = htobe32(sc->sc_hardmtu);
   4287 	/*
   4288          * always leave promisc-all enabled on the vport since we
   4289          * can't give it a vlan list, and we're already doing multicast
   4290          * filtering in the flow table.
   4291 	 */
   4292 	ctx->vp_flags = htobe16(MCX_NIC_VPORT_CTX_PROMISC_ALL);
   4293 
   4294 	mcx_cmdq_mboxes_sign(&mxm, 1);
   4295 	mcx_cmdq_post(sc, cqe, 0);
   4296 
   4297 	error = mcx_cmdq_poll(sc, cqe, 1000);
   4298 	if (error != 0) {
   4299 		printf(", modify nic vport context timeout\n");
   4300 		goto free;
   4301 	}
   4302 	if (mcx_cmdq_verify(cqe) != 0) {
   4303 		printf(", modify nic vport context command corrupt\n");
   4304 		goto free;
   4305 	}
   4306 
   4307 	out = mcx_cmdq_out(cqe);
   4308 	if (out->cmd_status != MCX_CQ_STATUS_OK) {
   4309 		printf(", modify nic vport context failed (%x, %x)\n",
   4310 		    out->cmd_status, be32toh(out->cmd_syndrome));
   4311 		error = -1;
   4312 		goto free;
   4313 	}
   4314 
   4315 free:
   4316 	mcx_dmamem_free(sc, &mxm);
   4317 
   4318 	return (error);
   4319 }
   4320 
   4321 static int
   4322 mcx_alloc_uar(struct mcx_softc *sc, int *uar)
   4323 {
   4324 	struct mcx_cmdq_entry *cqe;
   4325 	struct mcx_cmd_alloc_uar_in *in;
   4326 	struct mcx_cmd_alloc_uar_out *out;
   4327 	int error;
   4328 
   4329 	cqe = MCX_DMA_KVA(&sc->sc_cmdq_mem);
   4330 	mcx_cmdq_init(sc, cqe, sizeof(*in), sizeof(*out), mcx_cmdq_token(sc));
   4331 
   4332 	in = mcx_cmdq_in(cqe);
   4333 	in->cmd_opcode = htobe16(MCX_CMD_ALLOC_UAR);
   4334 	in->cmd_op_mod = htobe16(0);
   4335 
   4336 	mcx_cmdq_post(sc, cqe, 0);
   4337 
   4338 	error = mcx_cmdq_poll(sc, cqe, 1000);
   4339 	if (error != 0) {
   4340 		printf(", alloc uar timeout\n");
   4341 		return (-1);
   4342 	}
   4343 	if (mcx_cmdq_verify(cqe) != 0) {
   4344 		printf(", alloc uar command corrupt\n");
   4345 		return (-1);
   4346 	}
   4347 
   4348 	out = mcx_cmdq_out(cqe);
   4349 	if (out->cmd_status != MCX_CQ_STATUS_OK) {
   4350 		printf(", alloc uar failed (%x)\n", out->cmd_status);
   4351 		return (-1);
   4352 	}
   4353 
   4354 	*uar = mcx_get_id(out->cmd_uar);
   4355 	return (0);
   4356 }
   4357 
   4358 static int
   4359 mcx_create_eq(struct mcx_softc *sc, struct mcx_eq *eq, int uar,
   4360     uint64_t events, int vector)
   4361 {
   4362 	struct mcx_cmdq_entry *cqe;
   4363 	struct mcx_dmamem mxm;
   4364 	struct mcx_cmd_create_eq_in *in;
   4365 	struct mcx_cmd_create_eq_mb_in *mbin;
   4366 	struct mcx_cmd_create_eq_out *out;
   4367 	struct mcx_eq_entry *eqe;
   4368 	int error;
   4369 	uint64_t *pas;
   4370 	int insize, npages, paslen, i, token;
   4371 
   4372 	eq->eq_cons = 0;
   4373 
   4374 	npages = howmany((1 << MCX_LOG_EQ_SIZE) * sizeof(struct mcx_eq_entry),
   4375 	    MCX_PAGE_SIZE);
   4376 	paslen = npages * sizeof(*pas);
   4377 	insize = sizeof(struct mcx_cmd_create_eq_mb_in) + paslen;
   4378 
   4379 	if (mcx_dmamem_alloc(sc, &eq->eq_mem, npages * MCX_PAGE_SIZE,
   4380 	    MCX_PAGE_SIZE) != 0) {
   4381 		printf(", unable to allocate event queue memory\n");
   4382 		return (-1);
   4383 	}
   4384 
   4385 	eqe = (struct mcx_eq_entry *)MCX_DMA_KVA(&eq->eq_mem);
   4386 	for (i = 0; i < (1 << MCX_LOG_EQ_SIZE); i++) {
   4387 		eqe[i].eq_owner = MCX_EQ_ENTRY_OWNER_INIT;
   4388 	}
   4389 
   4390 	cqe = MCX_DMA_KVA(&sc->sc_cmdq_mem);
   4391 	token = mcx_cmdq_token(sc);
   4392 	mcx_cmdq_init(sc, cqe, sizeof(*in) + insize, sizeof(*out), token);
   4393 
   4394 	in = mcx_cmdq_in(cqe);
   4395 	in->cmd_opcode = htobe16(MCX_CMD_CREATE_EQ);
   4396 	in->cmd_op_mod = htobe16(0);
   4397 
   4398 	if (mcx_cmdq_mboxes_alloc(sc, &mxm,
   4399 	    howmany(insize, MCX_CMDQ_MAILBOX_DATASIZE),
   4400 	    &cqe->cq_input_ptr, token) != 0) {
   4401 		printf(", unable to allocate create eq mailboxen\n");
   4402 		goto free_eq;
   4403 	}
   4404 	mbin = mcx_cq_mbox_data(mcx_cq_mbox(&mxm, 0));
   4405 	mbin->cmd_eq_ctx.eq_uar_size = htobe32(
   4406 	    (MCX_LOG_EQ_SIZE << MCX_EQ_CTX_LOG_EQ_SIZE_SHIFT) | uar);
   4407 	mbin->cmd_eq_ctx.eq_intr = vector;
   4408 	mbin->cmd_event_bitmask = htobe64(events);
   4409 
   4410 	bus_dmamap_sync(sc->sc_dmat, MCX_DMA_MAP(&eq->eq_mem),
   4411 	    0, MCX_DMA_LEN(&eq->eq_mem), BUS_DMASYNC_PREREAD);
   4412 
   4413 	/* physical addresses follow the mailbox in data */
   4414 	mcx_cmdq_mboxes_pas(&mxm, sizeof(*mbin), npages, &eq->eq_mem);
   4415 	mcx_cmdq_mboxes_sign(&mxm, howmany(insize, MCX_CMDQ_MAILBOX_DATASIZE));
   4416 	mcx_cmdq_post(sc, cqe, 0);
   4417 
   4418 	error = mcx_cmdq_poll(sc, cqe, 1000);
   4419 	if (error != 0) {
   4420 		printf(", create eq timeout\n");
   4421 		goto free_mxm;
   4422 	}
   4423 	if (mcx_cmdq_verify(cqe) != 0) {
   4424 		printf(", create eq command corrupt\n");
   4425 		goto free_mxm;
   4426 	}
   4427 
   4428 	out = mcx_cmdq_out(cqe);
   4429 	if (out->cmd_status != MCX_CQ_STATUS_OK) {
   4430 		printf(", create eq failed (%x, %x)\n", out->cmd_status,
   4431 		    be32toh(out->cmd_syndrome));
   4432 		goto free_mxm;
   4433 	}
   4434 
   4435 	eq->eq_n = mcx_get_id(out->cmd_eqn);
   4436 
   4437 	mcx_dmamem_free(sc, &mxm);
   4438 
   4439 	mcx_arm_eq(sc, eq, uar);
   4440 
   4441 	return (0);
   4442 
   4443 free_mxm:
   4444 	bus_dmamap_sync(sc->sc_dmat, MCX_DMA_MAP(&eq->eq_mem),
   4445 	    0, MCX_DMA_LEN(&eq->eq_mem), BUS_DMASYNC_POSTREAD);
   4446 	mcx_dmamem_free(sc, &mxm);
   4447 free_eq:
   4448 	mcx_dmamem_free(sc, &eq->eq_mem);
   4449 	return (-1);
   4450 }
   4451 
   4452 static int
   4453 mcx_alloc_pd(struct mcx_softc *sc)
   4454 {
   4455 	struct mcx_cmdq_entry *cqe;
   4456 	struct mcx_cmd_alloc_pd_in *in;
   4457 	struct mcx_cmd_alloc_pd_out *out;
   4458 	int error;
   4459 
   4460 	cqe = MCX_DMA_KVA(&sc->sc_cmdq_mem);
   4461 	mcx_cmdq_init(sc, cqe, sizeof(*in), sizeof(*out), mcx_cmdq_token(sc));
   4462 
   4463 	in = mcx_cmdq_in(cqe);
   4464 	in->cmd_opcode = htobe16(MCX_CMD_ALLOC_PD);
   4465 	in->cmd_op_mod = htobe16(0);
   4466 
   4467 	mcx_cmdq_post(sc, cqe, 0);
   4468 
   4469 	error = mcx_cmdq_poll(sc, cqe, 1000);
   4470 	if (error != 0) {
   4471 		printf(", alloc pd timeout\n");
   4472 		return (-1);
   4473 	}
   4474 	if (mcx_cmdq_verify(cqe) != 0) {
   4475 		printf(", alloc pd command corrupt\n");
   4476 		return (-1);
   4477 	}
   4478 
   4479 	out = mcx_cmdq_out(cqe);
   4480 	if (out->cmd_status != MCX_CQ_STATUS_OK) {
   4481 		printf(", alloc pd failed (%x)\n", out->cmd_status);
   4482 		return (-1);
   4483 	}
   4484 
   4485 	sc->sc_pd = mcx_get_id(out->cmd_pd);
   4486 	return (0);
   4487 }
   4488 
   4489 static int
   4490 mcx_alloc_tdomain(struct mcx_softc *sc)
   4491 {
   4492 	struct mcx_cmdq_entry *cqe;
   4493 	struct mcx_cmd_alloc_td_in *in;
   4494 	struct mcx_cmd_alloc_td_out *out;
   4495 	int error;
   4496 
   4497 	cqe = MCX_DMA_KVA(&sc->sc_cmdq_mem);
   4498 	mcx_cmdq_init(sc, cqe, sizeof(*in), sizeof(*out), mcx_cmdq_token(sc));
   4499 
   4500 	in = mcx_cmdq_in(cqe);
   4501 	in->cmd_opcode = htobe16(MCX_CMD_ALLOC_TRANSPORT_DOMAIN);
   4502 	in->cmd_op_mod = htobe16(0);
   4503 
   4504 	mcx_cmdq_post(sc, cqe, 0);
   4505 
   4506 	error = mcx_cmdq_poll(sc, cqe, 1000);
   4507 	if (error != 0) {
   4508 		printf(", alloc transport domain timeout\n");
   4509 		return (-1);
   4510 	}
   4511 	if (mcx_cmdq_verify(cqe) != 0) {
   4512 		printf(", alloc transport domain command corrupt\n");
   4513 		return (-1);
   4514 	}
   4515 
   4516 	out = mcx_cmdq_out(cqe);
   4517 	if (out->cmd_status != MCX_CQ_STATUS_OK) {
   4518 		printf(", alloc transport domain failed (%x)\n",
   4519 		    out->cmd_status);
   4520 		return (-1);
   4521 	}
   4522 
   4523 	sc->sc_tdomain = mcx_get_id(out->cmd_tdomain);
   4524 	return (0);
   4525 }
   4526 
   4527 static int
   4528 mcx_query_nic_vport_context(struct mcx_softc *sc, uint8_t *enaddr)
   4529 {
   4530 	struct mcx_dmamem mxm;
   4531 	struct mcx_cmdq_entry *cqe;
   4532 	struct mcx_cmd_query_nic_vport_context_in *in;
   4533 	struct mcx_cmd_query_nic_vport_context_out *out;
   4534 	struct mcx_nic_vport_ctx *ctx;
   4535 	uint8_t *addr;
   4536 	int error, token, i;
   4537 
   4538 	cqe = MCX_DMA_KVA(&sc->sc_cmdq_mem);
   4539 	token = mcx_cmdq_token(sc);
   4540 	mcx_cmdq_init(sc, cqe, sizeof(*in), sizeof(*out) + sizeof(*ctx), token);
   4541 
   4542 	in = mcx_cmdq_in(cqe);
   4543 	in->cmd_opcode = htobe16(MCX_CMD_QUERY_NIC_VPORT_CONTEXT);
   4544 	in->cmd_op_mod = htobe16(0);
   4545 	in->cmd_allowed_list_type = 0;
   4546 
   4547 	if (mcx_cmdq_mboxes_alloc(sc, &mxm, 1,
   4548 	    &cqe->cq_output_ptr, token) != 0) {
   4549 		printf(", unable to allocate "
   4550 		    "query nic vport context mailboxen\n");
   4551 		return (-1);
   4552 	}
   4553 	mcx_cmdq_mboxes_sign(&mxm, 1);
   4554 	mcx_cmdq_post(sc, cqe, 0);
   4555 
   4556 	error = mcx_cmdq_poll(sc, cqe, 1000);
   4557 	if (error != 0) {
   4558 		printf(", query nic vport context timeout\n");
   4559 		goto free;
   4560 	}
   4561 	if (mcx_cmdq_verify(cqe) != 0) {
   4562 		printf(", query nic vport context command corrupt\n");
   4563 		goto free;
   4564 	}
   4565 
   4566 	out = mcx_cmdq_out(cqe);
   4567 	if (out->cmd_status != MCX_CQ_STATUS_OK) {
   4568 		printf(", query nic vport context failed (%x, %x)\n",
   4569 		    out->cmd_status, be32toh(out->cmd_syndrome));
   4570 		error = -1;
   4571 		goto free;
   4572 	}
   4573 
   4574 	ctx = (struct mcx_nic_vport_ctx *)
   4575 	    mcx_cq_mbox_data(mcx_cq_mbox(&mxm, 0));
   4576 	addr = (uint8_t *)&ctx->vp_perm_addr;
   4577 	for (i = 0; i < ETHER_ADDR_LEN; i++) {
   4578 		enaddr[i] = addr[i + 2];
   4579 	}
   4580 free:
   4581 	mcx_dmamem_free(sc, &mxm);
   4582 
   4583 	return (error);
   4584 }
   4585 
   4586 static int
   4587 mcx_query_special_contexts(struct mcx_softc *sc)
   4588 {
   4589 	struct mcx_cmdq_entry *cqe;
   4590 	struct mcx_cmd_query_special_ctx_in *in;
   4591 	struct mcx_cmd_query_special_ctx_out *out;
   4592 	int error;
   4593 
   4594 	cqe = MCX_DMA_KVA(&sc->sc_cmdq_mem);
   4595 	mcx_cmdq_init(sc, cqe, sizeof(*in), sizeof(*out), mcx_cmdq_token(sc));
   4596 
   4597 	in = mcx_cmdq_in(cqe);
   4598 	in->cmd_opcode = htobe16(MCX_CMD_QUERY_SPECIAL_CONTEXTS);
   4599 	in->cmd_op_mod = htobe16(0);
   4600 
   4601 	mcx_cmdq_post(sc, cqe, 0);
   4602 
   4603 	error = mcx_cmdq_poll(sc, cqe, 1000);
   4604 	if (error != 0) {
   4605 		printf(", query special contexts timeout\n");
   4606 		return (-1);
   4607 	}
   4608 	if (mcx_cmdq_verify(cqe) != 0) {
   4609 		printf(", query special contexts command corrupt\n");
   4610 		return (-1);
   4611 	}
   4612 
   4613 	out = mcx_cmdq_out(cqe);
   4614 	if (out->cmd_status != MCX_CQ_STATUS_OK) {
   4615 		printf(", query special contexts failed (%x)\n",
   4616 		    out->cmd_status);
   4617 		return (-1);
   4618 	}
   4619 
   4620 	sc->sc_lkey = be32toh(out->cmd_resd_lkey);
   4621 	return (0);
   4622 }
   4623 
   4624 static int
   4625 mcx_set_port_mtu(struct mcx_softc *sc, int mtu)
   4626 {
   4627 	struct mcx_reg_pmtu pmtu;
   4628 	int error;
   4629 
   4630 	/* read max mtu */
   4631 	memset(&pmtu, 0, sizeof(pmtu));
   4632 	pmtu.rp_local_port = 1;
   4633 	error = mcx_access_hca_reg(sc, MCX_REG_PMTU, MCX_REG_OP_READ, &pmtu,
   4634 	    sizeof(pmtu));
   4635 	if (error != 0) {
   4636 		printf(", unable to get port MTU\n");
   4637 		return error;
   4638 	}
   4639 
   4640 	mtu = uimin(mtu, be16toh(pmtu.rp_max_mtu));
   4641 	pmtu.rp_admin_mtu = htobe16(mtu);
   4642 	error = mcx_access_hca_reg(sc, MCX_REG_PMTU, MCX_REG_OP_WRITE, &pmtu,
   4643 	    sizeof(pmtu));
   4644 	if (error != 0) {
   4645 		printf(", unable to set port MTU\n");
   4646 		return error;
   4647 	}
   4648 
   4649 	sc->sc_hardmtu = mtu;
   4650 	sc->sc_rxbufsz = roundup(mtu + ETHER_ALIGN, sizeof(long));
   4651 	return 0;
   4652 }
   4653 
   4654 static int
   4655 mcx_create_cq(struct mcx_softc *sc, struct mcx_cq *cq, int uar, int db, int eqn)
   4656 {
   4657 	struct mcx_cmdq_entry *cmde;
   4658 	struct mcx_cq_entry *cqe;
   4659 	struct mcx_dmamem mxm;
   4660 	struct mcx_cmd_create_cq_in *in;
   4661 	struct mcx_cmd_create_cq_mb_in *mbin;
   4662 	struct mcx_cmd_create_cq_out *out;
   4663 	int error;
   4664 	uint64_t *pas;
   4665 	int insize, npages, paslen, i, token;
   4666 
   4667 	cq->cq_doorbell = MCX_CQ_DOORBELL_BASE + (MCX_CQ_DOORBELL_STRIDE * db);
   4668 
   4669 	npages = howmany((1 << MCX_LOG_CQ_SIZE) * sizeof(struct mcx_cq_entry),
   4670 	    MCX_PAGE_SIZE);
   4671 	paslen = npages * sizeof(*pas);
   4672 	insize = sizeof(struct mcx_cmd_create_cq_mb_in) + paslen;
   4673 
   4674 	if (mcx_dmamem_alloc(sc, &cq->cq_mem, npages * MCX_PAGE_SIZE,
   4675 	    MCX_PAGE_SIZE) != 0) {
   4676 		printf("%s: unable to allocate completion queue memory\n",
   4677 		    DEVNAME(sc));
   4678 		return (-1);
   4679 	}
   4680 	cqe = MCX_DMA_KVA(&cq->cq_mem);
   4681 	for (i = 0; i < (1 << MCX_LOG_CQ_SIZE); i++) {
   4682 		cqe[i].cq_opcode_owner = MCX_CQ_ENTRY_FLAG_OWNER;
   4683 	}
   4684 
   4685 	cmde = MCX_DMA_KVA(&sc->sc_cmdq_mem);
   4686 	token = mcx_cmdq_token(sc);
   4687 	mcx_cmdq_init(sc, cmde, sizeof(*in) + insize, sizeof(*out), token);
   4688 
   4689 	in = mcx_cmdq_in(cmde);
   4690 	in->cmd_opcode = htobe16(MCX_CMD_CREATE_CQ);
   4691 	in->cmd_op_mod = htobe16(0);
   4692 
   4693 	if (mcx_cmdq_mboxes_alloc(sc, &mxm,
   4694 	    howmany(insize, MCX_CMDQ_MAILBOX_DATASIZE),
   4695 	    &cmde->cq_input_ptr, token) != 0) {
   4696 		printf("%s: unable to allocate create cq mailboxen\n",
   4697 		    DEVNAME(sc));
   4698 		goto free_cq;
   4699 	}
   4700 	mbin = mcx_cq_mbox_data(mcx_cq_mbox(&mxm, 0));
   4701 	mbin->cmd_cq_ctx.cq_uar_size = htobe32(
   4702 	    (MCX_LOG_CQ_SIZE << MCX_CQ_CTX_LOG_CQ_SIZE_SHIFT) | uar);
   4703 	mbin->cmd_cq_ctx.cq_eqn = htobe32(eqn);
   4704 	mbin->cmd_cq_ctx.cq_period_max_count = htobe32(
   4705 	    (MCX_CQ_MOD_PERIOD << MCX_CQ_CTX_PERIOD_SHIFT) |
   4706 	    MCX_CQ_MOD_COUNTER);
   4707 	mbin->cmd_cq_ctx.cq_doorbell = htobe64(
   4708 	    MCX_DMA_DVA(&sc->sc_doorbell_mem) + cq->cq_doorbell);
   4709 
   4710 	bus_dmamap_sync(sc->sc_dmat, MCX_DMA_MAP(&cq->cq_mem),
   4711 	    0, MCX_DMA_LEN(&cq->cq_mem), BUS_DMASYNC_PREREAD);
   4712 
   4713 	/* physical addresses follow the mailbox in data */
   4714 	mcx_cmdq_mboxes_pas(&mxm, sizeof(*mbin), npages, &cq->cq_mem);
   4715 	mcx_cmdq_post(sc, cmde, 0);
   4716 
   4717 	error = mcx_cmdq_poll(sc, cmde, 1000);
   4718 	if (error != 0) {
   4719 		printf("%s: create cq timeout\n", DEVNAME(sc));
   4720 		goto free_mxm;
   4721 	}
   4722 	if (mcx_cmdq_verify(cmde) != 0) {
   4723 		printf("%s: create cq command corrupt\n", DEVNAME(sc));
   4724 		goto free_mxm;
   4725 	}
   4726 
   4727 	out = mcx_cmdq_out(cmde);
   4728 	if (out->cmd_status != MCX_CQ_STATUS_OK) {
   4729 		printf("%s: create cq failed (%x, %x)\n", DEVNAME(sc),
   4730 		    out->cmd_status, be32toh(out->cmd_syndrome));
   4731 		goto free_mxm;
   4732 	}
   4733 
   4734 	cq->cq_n = mcx_get_id(out->cmd_cqn);
   4735 	cq->cq_cons = 0;
   4736 	cq->cq_count = 0;
   4737 
   4738 	mcx_dmamem_free(sc, &mxm);
   4739 
   4740 	bus_dmamap_sync(sc->sc_dmat, MCX_DMA_MAP(&sc->sc_doorbell_mem),
   4741 	    cq->cq_doorbell, sizeof(struct mcx_cq_doorbell),
   4742 	    BUS_DMASYNC_PREWRITE);
   4743 
   4744 	mcx_arm_cq(sc, cq, uar);
   4745 
   4746 	return (0);
   4747 
   4748 free_mxm:
   4749 	bus_dmamap_sync(sc->sc_dmat, MCX_DMA_MAP(&cq->cq_mem),
   4750 	    0, MCX_DMA_LEN(&cq->cq_mem), BUS_DMASYNC_POSTREAD);
   4751 	mcx_dmamem_free(sc, &mxm);
   4752 free_cq:
   4753 	mcx_dmamem_free(sc, &cq->cq_mem);
   4754 	return (-1);
   4755 }
   4756 
   4757 static int
   4758 mcx_destroy_cq(struct mcx_softc *sc, struct mcx_cq *cq)
   4759 {
   4760 	struct mcx_cmdq_entry *cqe;
   4761 	struct mcx_cmd_destroy_cq_in *in;
   4762 	struct mcx_cmd_destroy_cq_out *out;
   4763 	int error;
   4764 	int token;
   4765 
   4766 	cqe = MCX_DMA_KVA(&sc->sc_cmdq_mem);
   4767 	token = mcx_cmdq_token(sc);
   4768 	mcx_cmdq_init(sc, cqe, sizeof(*in), sizeof(*out), token);
   4769 
   4770 	in = mcx_cmdq_in(cqe);
   4771 	in->cmd_opcode = htobe16(MCX_CMD_DESTROY_CQ);
   4772 	in->cmd_op_mod = htobe16(0);
   4773 	in->cmd_cqn = htobe32(cq->cq_n);
   4774 
   4775 	mcx_cmdq_post(sc, cqe, 0);
   4776 	error = mcx_cmdq_poll(sc, cqe, 1000);
   4777 	if (error != 0) {
   4778 		printf("%s: destroy cq timeout\n", DEVNAME(sc));
   4779 		return error;
   4780 	}
   4781 	if (mcx_cmdq_verify(cqe) != 0) {
   4782 		printf("%s: destroy cq command corrupt\n", DEVNAME(sc));
   4783 		return error;
   4784 	}
   4785 
   4786 	out = mcx_cmdq_out(cqe);
   4787 	if (out->cmd_status != MCX_CQ_STATUS_OK) {
   4788 		printf("%s: destroy cq failed (%x, %x)\n", DEVNAME(sc),
   4789 		    out->cmd_status, be32toh(out->cmd_syndrome));
   4790 		return -1;
   4791 	}
   4792 
   4793 	bus_dmamap_sync(sc->sc_dmat, MCX_DMA_MAP(&sc->sc_doorbell_mem),
   4794 	    cq->cq_doorbell, sizeof(struct mcx_cq_doorbell),
   4795 	    BUS_DMASYNC_POSTWRITE);
   4796 
   4797 	bus_dmamap_sync(sc->sc_dmat, MCX_DMA_MAP(&cq->cq_mem),
   4798 	    0, MCX_DMA_LEN(&cq->cq_mem), BUS_DMASYNC_POSTREAD);
   4799 	mcx_dmamem_free(sc, &cq->cq_mem);
   4800 
   4801 	cq->cq_n = 0;
   4802 	cq->cq_cons = 0;
   4803 	cq->cq_count = 0;
   4804 	return 0;
   4805 }
   4806 
   4807 static int
   4808 mcx_create_rq(struct mcx_softc *sc, struct mcx_rx *rx, int db, int cqn)
   4809 {
   4810 	struct mcx_cmdq_entry *cqe;
   4811 	struct mcx_dmamem mxm;
   4812 	struct mcx_cmd_create_rq_in *in;
   4813 	struct mcx_cmd_create_rq_out *out;
   4814 	struct mcx_rq_ctx *mbin;
   4815 	int error;
   4816 	uint64_t *pas;
   4817 	uint32_t rq_flags;
   4818 	int insize, npages, paslen, token;
   4819 
   4820 	rx->rx_doorbell = MCX_WQ_DOORBELL_BASE +
   4821 	    (db * MCX_WQ_DOORBELL_STRIDE);
   4822 
   4823 	npages = howmany((1 << MCX_LOG_RQ_SIZE) * sizeof(struct mcx_rq_entry),
   4824 	    MCX_PAGE_SIZE);
   4825 	paslen = npages * sizeof(*pas);
   4826 	insize = 0x10 + sizeof(struct mcx_rq_ctx) + paslen;
   4827 
   4828 	if (mcx_dmamem_alloc(sc, &rx->rx_rq_mem, npages * MCX_PAGE_SIZE,
   4829 	    MCX_PAGE_SIZE) != 0) {
   4830 		printf("%s: unable to allocate receive queue memory\n",
   4831 		    DEVNAME(sc));
   4832 		return (-1);
   4833 	}
   4834 
   4835 	cqe = MCX_DMA_KVA(&sc->sc_cmdq_mem);
   4836 	token = mcx_cmdq_token(sc);
   4837 	mcx_cmdq_init(sc, cqe, sizeof(*in) + insize, sizeof(*out), token);
   4838 
   4839 	in = mcx_cmdq_in(cqe);
   4840 	in->cmd_opcode = htobe16(MCX_CMD_CREATE_RQ);
   4841 	in->cmd_op_mod = htobe16(0);
   4842 
   4843 	if (mcx_cmdq_mboxes_alloc(sc, &mxm,
   4844 	    howmany(insize, MCX_CMDQ_MAILBOX_DATASIZE),
   4845 	    &cqe->cq_input_ptr, token) != 0) {
   4846 		printf("%s: unable to allocate create rq mailboxen\n",
   4847 		    DEVNAME(sc));
   4848 		goto free_rq;
   4849 	}
   4850 	mbin = (struct mcx_rq_ctx *)
   4851 	    (((char *)mcx_cq_mbox_data(mcx_cq_mbox(&mxm, 0))) + 0x10);
   4852 	rq_flags = MCX_RQ_CTX_RLKEY;
   4853 	mbin->rq_flags = htobe32(rq_flags);
   4854 	mbin->rq_cqn = htobe32(cqn);
   4855 	mbin->rq_wq.wq_type = MCX_WQ_CTX_TYPE_CYCLIC;
   4856 	mbin->rq_wq.wq_pd = htobe32(sc->sc_pd);
   4857 	mbin->rq_wq.wq_doorbell = htobe64(MCX_DMA_DVA(&sc->sc_doorbell_mem) +
   4858 	    rx->rx_doorbell);
   4859 	mbin->rq_wq.wq_log_stride = htobe16(4);
   4860 	mbin->rq_wq.wq_log_size = MCX_LOG_RQ_SIZE;
   4861 
   4862 	bus_dmamap_sync(sc->sc_dmat, MCX_DMA_MAP(&rx->rx_rq_mem),
   4863 	    0, MCX_DMA_LEN(&rx->rx_rq_mem), BUS_DMASYNC_PREWRITE);
   4864 
   4865 	/* physical addresses follow the mailbox in data */
   4866 	mcx_cmdq_mboxes_pas(&mxm, sizeof(*mbin) + 0x10, npages, &rx->rx_rq_mem);
   4867 	mcx_cmdq_post(sc, cqe, 0);
   4868 
   4869 	error = mcx_cmdq_poll(sc, cqe, 1000);
   4870 	if (error != 0) {
   4871 		printf("%s: create rq timeout\n", DEVNAME(sc));
   4872 		goto free_mxm;
   4873 	}
   4874 	if (mcx_cmdq_verify(cqe) != 0) {
   4875 		printf("%s: create rq command corrupt\n", DEVNAME(sc));
   4876 		goto free_mxm;
   4877 	}
   4878 
   4879 	out = mcx_cmdq_out(cqe);
   4880 	if (out->cmd_status != MCX_CQ_STATUS_OK) {
   4881 		printf("%s: create rq failed (%x, %x)\n", DEVNAME(sc),
   4882 		    out->cmd_status, be32toh(out->cmd_syndrome));
   4883 		goto free_mxm;
   4884 	}
   4885 
   4886 	rx->rx_rqn = mcx_get_id(out->cmd_rqn);
   4887 
   4888 	mcx_dmamem_free(sc, &mxm);
   4889 
   4890 	bus_dmamap_sync(sc->sc_dmat, MCX_DMA_MAP(&sc->sc_doorbell_mem),
   4891 	    rx->rx_doorbell, sizeof(uint32_t), BUS_DMASYNC_PREWRITE);
   4892 
   4893 	return (0);
   4894 
   4895 free_mxm:
   4896 	bus_dmamap_sync(sc->sc_dmat, MCX_DMA_MAP(&rx->rx_rq_mem),
   4897 	    0, MCX_DMA_LEN(&rx->rx_rq_mem), BUS_DMASYNC_POSTWRITE);
   4898 	mcx_dmamem_free(sc, &mxm);
   4899 free_rq:
   4900 	mcx_dmamem_free(sc, &rx->rx_rq_mem);
   4901 	return (-1);
   4902 }
   4903 
   4904 static int
   4905 mcx_ready_rq(struct mcx_softc *sc, struct mcx_rx *rx)
   4906 {
   4907 	struct mcx_cmdq_entry *cqe;
   4908 	struct mcx_dmamem mxm;
   4909 	struct mcx_cmd_modify_rq_in *in;
   4910 	struct mcx_cmd_modify_rq_mb_in *mbin;
   4911 	struct mcx_cmd_modify_rq_out *out;
   4912 	int error;
   4913 	int token;
   4914 
   4915 	cqe = MCX_DMA_KVA(&sc->sc_cmdq_mem);
   4916 	token = mcx_cmdq_token(sc);
   4917 	mcx_cmdq_init(sc, cqe, sizeof(*in) + sizeof(*mbin),
   4918 	    sizeof(*out), token);
   4919 
   4920 	in = mcx_cmdq_in(cqe);
   4921 	in->cmd_opcode = htobe16(MCX_CMD_MODIFY_RQ);
   4922 	in->cmd_op_mod = htobe16(0);
   4923 	in->cmd_rq_state = htobe32((MCX_QUEUE_STATE_RST << 28) | rx->rx_rqn);
   4924 
   4925 	if (mcx_cmdq_mboxes_alloc(sc, &mxm, 1,
   4926 	    &cqe->cq_input_ptr, token) != 0) {
   4927 		printf("%s: unable to allocate modify rq mailbox\n",
   4928 		    DEVNAME(sc));
   4929 		return (-1);
   4930 	}
   4931 	mbin = mcx_cq_mbox_data(mcx_cq_mbox(&mxm, 0));
   4932 	mbin->cmd_rq_ctx.rq_flags = htobe32(
   4933 	    MCX_QUEUE_STATE_RDY << MCX_RQ_CTX_STATE_SHIFT);
   4934 
   4935 	mcx_cmdq_mboxes_sign(&mxm, 1);
   4936 	mcx_cmdq_post(sc, cqe, 0);
   4937 	error = mcx_cmdq_poll(sc, cqe, 1000);
   4938 	if (error != 0) {
   4939 		printf("%s: modify rq timeout\n", DEVNAME(sc));
   4940 		goto free;
   4941 	}
   4942 	if (mcx_cmdq_verify(cqe) != 0) {
   4943 		printf("%s: modify rq command corrupt\n", DEVNAME(sc));
   4944 		goto free;
   4945 	}
   4946 
   4947 	out = mcx_cmdq_out(cqe);
   4948 	if (out->cmd_status != MCX_CQ_STATUS_OK) {
   4949 		printf("%s: modify rq failed (%x, %x)\n", DEVNAME(sc),
   4950 		    out->cmd_status, be32toh(out->cmd_syndrome));
   4951 		error = -1;
   4952 		goto free;
   4953 	}
   4954 
   4955 free:
   4956 	mcx_dmamem_free(sc, &mxm);
   4957 	return (error);
   4958 }
   4959 
   4960 static int
   4961 mcx_destroy_rq(struct mcx_softc *sc, struct mcx_rx *rx)
   4962 {
   4963 	struct mcx_cmdq_entry *cqe;
   4964 	struct mcx_cmd_destroy_rq_in *in;
   4965 	struct mcx_cmd_destroy_rq_out *out;
   4966 	int error;
   4967 	int token;
   4968 
   4969 	cqe = MCX_DMA_KVA(&sc->sc_cmdq_mem);
   4970 	token = mcx_cmdq_token(sc);
   4971 	mcx_cmdq_init(sc, cqe, sizeof(*in), sizeof(*out), token);
   4972 
   4973 	in = mcx_cmdq_in(cqe);
   4974 	in->cmd_opcode = htobe16(MCX_CMD_DESTROY_RQ);
   4975 	in->cmd_op_mod = htobe16(0);
   4976 	in->cmd_rqn = htobe32(rx->rx_rqn);
   4977 
   4978 	mcx_cmdq_post(sc, cqe, 0);
   4979 	error = mcx_cmdq_poll(sc, cqe, 1000);
   4980 	if (error != 0) {
   4981 		printf("%s: destroy rq timeout\n", DEVNAME(sc));
   4982 		return error;
   4983 	}
   4984 	if (mcx_cmdq_verify(cqe) != 0) {
   4985 		printf("%s: destroy rq command corrupt\n", DEVNAME(sc));
   4986 		return error;
   4987 	}
   4988 
   4989 	out = mcx_cmdq_out(cqe);
   4990 	if (out->cmd_status != MCX_CQ_STATUS_OK) {
   4991 		printf("%s: destroy rq failed (%x, %x)\n", DEVNAME(sc),
   4992 		    out->cmd_status, be32toh(out->cmd_syndrome));
   4993 		return -1;
   4994 	}
   4995 
   4996 	bus_dmamap_sync(sc->sc_dmat, MCX_DMA_MAP(&sc->sc_doorbell_mem),
   4997 	    rx->rx_doorbell, sizeof(uint32_t), BUS_DMASYNC_POSTWRITE);
   4998 
   4999 	bus_dmamap_sync(sc->sc_dmat, MCX_DMA_MAP(&rx->rx_rq_mem),
   5000 	    0, MCX_DMA_LEN(&rx->rx_rq_mem), BUS_DMASYNC_POSTWRITE);
   5001 	mcx_dmamem_free(sc, &rx->rx_rq_mem);
   5002 
   5003 	rx->rx_rqn = 0;
   5004 	return 0;
   5005 }
   5006 
   5007 static int
   5008 mcx_create_tir_direct(struct mcx_softc *sc, struct mcx_rx *rx, int *tirn)
   5009 {
   5010 	struct mcx_cmdq_entry *cqe;
   5011 	struct mcx_dmamem mxm;
   5012 	struct mcx_cmd_create_tir_in *in;
   5013 	struct mcx_cmd_create_tir_mb_in *mbin;
   5014 	struct mcx_cmd_create_tir_out *out;
   5015 	int error;
   5016 	int token;
   5017 
   5018 	cqe = MCX_DMA_KVA(&sc->sc_cmdq_mem);
   5019 	token = mcx_cmdq_token(sc);
   5020 	mcx_cmdq_init(sc, cqe, sizeof(*in) + sizeof(*mbin),
   5021 	    sizeof(*out), token);
   5022 
   5023 	in = mcx_cmdq_in(cqe);
   5024 	in->cmd_opcode = htobe16(MCX_CMD_CREATE_TIR);
   5025 	in->cmd_op_mod = htobe16(0);
   5026 
   5027 	if (mcx_cmdq_mboxes_alloc(sc, &mxm, 1,
   5028 	    &cqe->cq_input_ptr, token) != 0) {
   5029 		printf("%s: unable to allocate create tir mailbox\n",
   5030 		    DEVNAME(sc));
   5031 		return (-1);
   5032 	}
   5033 	mbin = mcx_cq_mbox_data(mcx_cq_mbox(&mxm, 0));
   5034 	/* leave disp_type = 0, so packets get sent to the inline rqn */
   5035 	mbin->cmd_inline_rqn = htobe32(rx->rx_rqn);
   5036 	mbin->cmd_tdomain = htobe32(sc->sc_tdomain);
   5037 
   5038 	mcx_cmdq_post(sc, cqe, 0);
   5039 	error = mcx_cmdq_poll(sc, cqe, 1000);
   5040 	if (error != 0) {
   5041 		printf("%s: create tir timeout\n", DEVNAME(sc));
   5042 		goto free;
   5043 	}
   5044 	if (mcx_cmdq_verify(cqe) != 0) {
   5045 		printf("%s: create tir command corrupt\n", DEVNAME(sc));
   5046 		goto free;
   5047 	}
   5048 
   5049 	out = mcx_cmdq_out(cqe);
   5050 	if (out->cmd_status != MCX_CQ_STATUS_OK) {
   5051 		printf("%s: create tir failed (%x, %x)\n", DEVNAME(sc),
   5052 		    out->cmd_status, be32toh(out->cmd_syndrome));
   5053 		error = -1;
   5054 		goto free;
   5055 	}
   5056 
   5057 	*tirn = mcx_get_id(out->cmd_tirn);
   5058 free:
   5059 	mcx_dmamem_free(sc, &mxm);
   5060 	return (error);
   5061 }
   5062 
   5063 static int
   5064 mcx_create_tir_indirect(struct mcx_softc *sc, int rqtn, uint32_t hash_sel,
   5065     int *tirn)
   5066 {
   5067 	struct mcx_cmdq_entry *cqe;
   5068 	struct mcx_dmamem mxm;
   5069 	struct mcx_cmd_create_tir_in *in;
   5070 	struct mcx_cmd_create_tir_mb_in *mbin;
   5071 	struct mcx_cmd_create_tir_out *out;
   5072 	int error;
   5073 	int token;
   5074 
   5075 	cqe = MCX_DMA_KVA(&sc->sc_cmdq_mem);
   5076 	token = mcx_cmdq_token(sc);
   5077 	mcx_cmdq_init(sc, cqe, sizeof(*in) + sizeof(*mbin),
   5078 	    sizeof(*out), token);
   5079 
   5080 	in = mcx_cmdq_in(cqe);
   5081 	in->cmd_opcode = htobe16(MCX_CMD_CREATE_TIR);
   5082 	in->cmd_op_mod = htobe16(0);
   5083 
   5084 	if (mcx_cmdq_mboxes_alloc(sc, &mxm, 1,
   5085 	    &cqe->cq_input_ptr, token) != 0) {
   5086 		printf("%s: unable to allocate create tir mailbox\n",
   5087 		    DEVNAME(sc));
   5088 		return (-1);
   5089 	}
   5090 	mbin = mcx_cq_mbox_data(mcx_cq_mbox(&mxm, 0));
   5091 	mbin->cmd_disp_type = htobe32(MCX_TIR_CTX_DISP_TYPE_INDIRECT
   5092 	    << MCX_TIR_CTX_DISP_TYPE_SHIFT);
   5093 	mbin->cmd_indir_table = htobe32(rqtn);
   5094 	mbin->cmd_tdomain = htobe32(sc->sc_tdomain |
   5095 	    MCX_TIR_CTX_HASH_TOEPLITZ << MCX_TIR_CTX_HASH_SHIFT);
   5096 	mbin->cmd_rx_hash_sel_outer = htobe32(hash_sel);
   5097 	stoeplitz_to_key(&mbin->cmd_rx_hash_key,
   5098 	    sizeof(mbin->cmd_rx_hash_key));
   5099 
   5100 	mcx_cmdq_post(sc, cqe, 0);
   5101 	error = mcx_cmdq_poll(sc, cqe, 1000);
   5102 	if (error != 0) {
   5103 		printf("%s: create tir timeout\n", DEVNAME(sc));
   5104 		goto free;
   5105 	}
   5106 	if (mcx_cmdq_verify(cqe) != 0) {
   5107 		printf("%s: create tir command corrupt\n", DEVNAME(sc));
   5108 		goto free;
   5109 	}
   5110 
   5111 	out = mcx_cmdq_out(cqe);
   5112 	if (out->cmd_status != MCX_CQ_STATUS_OK) {
   5113 		printf("%s: create tir failed (%x, %x)\n", DEVNAME(sc),
   5114 		    out->cmd_status, be32toh(out->cmd_syndrome));
   5115 		error = -1;
   5116 		goto free;
   5117 	}
   5118 
   5119 	*tirn = mcx_get_id(out->cmd_tirn);
   5120 free:
   5121 	mcx_dmamem_free(sc, &mxm);
   5122 	return (error);
   5123 }
   5124 
   5125 static int
   5126 mcx_destroy_tir(struct mcx_softc *sc, int tirn)
   5127 {
   5128 	struct mcx_cmdq_entry *cqe;
   5129 	struct mcx_cmd_destroy_tir_in *in;
   5130 	struct mcx_cmd_destroy_tir_out *out;
   5131 	int error;
   5132 	int token;
   5133 
   5134 	cqe = MCX_DMA_KVA(&sc->sc_cmdq_mem);
   5135 	token = mcx_cmdq_token(sc);
   5136 	mcx_cmdq_init(sc, cqe, sizeof(*in), sizeof(*out), token);
   5137 
   5138 	in = mcx_cmdq_in(cqe);
   5139 	in->cmd_opcode = htobe16(MCX_CMD_DESTROY_TIR);
   5140 	in->cmd_op_mod = htobe16(0);
   5141 	in->cmd_tirn = htobe32(tirn);
   5142 
   5143 	mcx_cmdq_post(sc, cqe, 0);
   5144 	error = mcx_cmdq_poll(sc, cqe, 1000);
   5145 	if (error != 0) {
   5146 		printf("%s: destroy tir timeout\n", DEVNAME(sc));
   5147 		return error;
   5148 	}
   5149 	if (mcx_cmdq_verify(cqe) != 0) {
   5150 		printf("%s: destroy tir command corrupt\n", DEVNAME(sc));
   5151 		return error;
   5152 	}
   5153 
   5154 	out = mcx_cmdq_out(cqe);
   5155 	if (out->cmd_status != MCX_CQ_STATUS_OK) {
   5156 		printf("%s: destroy tir failed (%x, %x)\n", DEVNAME(sc),
   5157 		    out->cmd_status, be32toh(out->cmd_syndrome));
   5158 		return -1;
   5159 	}
   5160 
   5161 	return (0);
   5162 }
   5163 
   5164 static int
   5165 mcx_create_sq(struct mcx_softc *sc, struct mcx_tx *tx, int uar, int db,
   5166     int cqn)
   5167 {
   5168 	struct mcx_cmdq_entry *cqe;
   5169 	struct mcx_dmamem mxm;
   5170 	struct mcx_cmd_create_sq_in *in;
   5171 	struct mcx_sq_ctx *mbin;
   5172 	struct mcx_cmd_create_sq_out *out;
   5173 	int error;
   5174 	uint64_t *pas;
   5175 	int insize, npages, paslen, token;
   5176 
   5177 	tx->tx_doorbell = MCX_WQ_DOORBELL_BASE +
   5178 	    (db * MCX_WQ_DOORBELL_STRIDE) + 4;
   5179 
   5180 	npages = howmany((1 << MCX_LOG_SQ_SIZE) * sizeof(struct mcx_sq_entry),
   5181 	    MCX_PAGE_SIZE);
   5182 	paslen = npages * sizeof(*pas);
   5183 	insize = sizeof(struct mcx_sq_ctx) + paslen;
   5184 
   5185 	if (mcx_dmamem_alloc(sc, &tx->tx_sq_mem, npages * MCX_PAGE_SIZE,
   5186 	    MCX_PAGE_SIZE) != 0) {
   5187 		printf("%s: unable to allocate send queue memory\n",
   5188 		    DEVNAME(sc));
   5189 		return (-1);
   5190 	}
   5191 
   5192 	cqe = MCX_DMA_KVA(&sc->sc_cmdq_mem);
   5193 	token = mcx_cmdq_token(sc);
   5194 	mcx_cmdq_init(sc, cqe, sizeof(*in) + insize + paslen, sizeof(*out),
   5195 	    token);
   5196 
   5197 	in = mcx_cmdq_in(cqe);
   5198 	in->cmd_opcode = htobe16(MCX_CMD_CREATE_SQ);
   5199 	in->cmd_op_mod = htobe16(0);
   5200 
   5201 	if (mcx_cmdq_mboxes_alloc(sc, &mxm,
   5202 	    howmany(insize, MCX_CMDQ_MAILBOX_DATASIZE),
   5203 	    &cqe->cq_input_ptr, token) != 0) {
   5204 		printf("%s: unable to allocate create sq mailboxen\n",
   5205 		    DEVNAME(sc));
   5206 		goto free_sq;
   5207 	}
   5208 	mbin = (struct mcx_sq_ctx *)
   5209 	    (((char *)mcx_cq_mbox_data(mcx_cq_mbox(&mxm, 0))) + 0x10);
   5210 	mbin->sq_flags = htobe32(MCX_SQ_CTX_RLKEY |
   5211 	    (1 << MCX_SQ_CTX_MIN_WQE_INLINE_SHIFT));
   5212 	mbin->sq_cqn = htobe32(cqn);
   5213 	mbin->sq_tis_lst_sz = htobe32(1 << MCX_SQ_CTX_TIS_LST_SZ_SHIFT);
   5214 	mbin->sq_tis_num = htobe32(sc->sc_tis);
   5215 	mbin->sq_wq.wq_type = MCX_WQ_CTX_TYPE_CYCLIC;
   5216 	mbin->sq_wq.wq_pd = htobe32(sc->sc_pd);
   5217 	mbin->sq_wq.wq_uar_page = htobe32(uar);
   5218 	mbin->sq_wq.wq_doorbell = htobe64(MCX_DMA_DVA(&sc->sc_doorbell_mem) +
   5219 	    tx->tx_doorbell);
   5220 	mbin->sq_wq.wq_log_stride = htobe16(MCX_LOG_SQ_ENTRY_SIZE);
   5221 	mbin->sq_wq.wq_log_size = MCX_LOG_SQ_SIZE;
   5222 
   5223 	bus_dmamap_sync(sc->sc_dmat, MCX_DMA_MAP(&tx->tx_sq_mem),
   5224 	    0, MCX_DMA_LEN(&tx->tx_sq_mem), BUS_DMASYNC_PREWRITE);
   5225 
   5226 	/* physical addresses follow the mailbox in data */
   5227 	mcx_cmdq_mboxes_pas(&mxm, sizeof(*mbin) + 0x10,
   5228 	    npages, &tx->tx_sq_mem);
   5229 	mcx_cmdq_post(sc, cqe, 0);
   5230 
   5231 	error = mcx_cmdq_poll(sc, cqe, 1000);
   5232 	if (error != 0) {
   5233 		printf("%s: create sq timeout\n", DEVNAME(sc));
   5234 		goto free_mxm;
   5235 	}
   5236 	if (mcx_cmdq_verify(cqe) != 0) {
   5237 		printf("%s: create sq command corrupt\n", DEVNAME(sc));
   5238 		goto free_mxm;
   5239 	}
   5240 
   5241 	out = mcx_cmdq_out(cqe);
   5242 	if (out->cmd_status != MCX_CQ_STATUS_OK) {
   5243 		printf("%s: create sq failed (%x, %x)\n", DEVNAME(sc),
   5244 		    out->cmd_status, be32toh(out->cmd_syndrome));
   5245 		goto free_mxm;
   5246 	}
   5247 
   5248 	tx->tx_uar = uar;
   5249 	tx->tx_sqn = mcx_get_id(out->cmd_sqn);
   5250 
   5251 	mcx_dmamem_free(sc, &mxm);
   5252 
   5253 	bus_dmamap_sync(sc->sc_dmat, MCX_DMA_MAP(&sc->sc_doorbell_mem),
   5254 	    tx->tx_doorbell, sizeof(uint32_t), BUS_DMASYNC_PREWRITE);
   5255 
   5256 	return (0);
   5257 
   5258 free_mxm:
   5259 	bus_dmamap_sync(sc->sc_dmat, MCX_DMA_MAP(&tx->tx_sq_mem),
   5260 	    0, MCX_DMA_LEN(&tx->tx_sq_mem), BUS_DMASYNC_POSTWRITE);
   5261 	mcx_dmamem_free(sc, &mxm);
   5262 free_sq:
   5263 	mcx_dmamem_free(sc, &tx->tx_sq_mem);
   5264 	return (-1);
   5265 }
   5266 
   5267 static int
   5268 mcx_destroy_sq(struct mcx_softc *sc, struct mcx_tx *tx)
   5269 {
   5270 	struct mcx_cmdq_entry *cqe;
   5271 	struct mcx_cmd_destroy_sq_in *in;
   5272 	struct mcx_cmd_destroy_sq_out *out;
   5273 	int error;
   5274 	int token;
   5275 
   5276 	cqe = MCX_DMA_KVA(&sc->sc_cmdq_mem);
   5277 	token = mcx_cmdq_token(sc);
   5278 	mcx_cmdq_init(sc, cqe, sizeof(*in), sizeof(*out), token);
   5279 
   5280 	in = mcx_cmdq_in(cqe);
   5281 	in->cmd_opcode = htobe16(MCX_CMD_DESTROY_SQ);
   5282 	in->cmd_op_mod = htobe16(0);
   5283 	in->cmd_sqn = htobe32(tx->tx_sqn);
   5284 
   5285 	mcx_cmdq_post(sc, cqe, 0);
   5286 	error = mcx_cmdq_poll(sc, cqe, 1000);
   5287 	if (error != 0) {
   5288 		printf("%s: destroy sq timeout\n", DEVNAME(sc));
   5289 		return error;
   5290 	}
   5291 	if (mcx_cmdq_verify(cqe) != 0) {
   5292 		printf("%s: destroy sq command corrupt\n", DEVNAME(sc));
   5293 		return error;
   5294 	}
   5295 
   5296 	out = mcx_cmdq_out(cqe);
   5297 	if (out->cmd_status != MCX_CQ_STATUS_OK) {
   5298 		printf("%s: destroy sq failed (%x, %x)\n", DEVNAME(sc),
   5299 		    out->cmd_status, be32toh(out->cmd_syndrome));
   5300 		return -1;
   5301 	}
   5302 
   5303 	bus_dmamap_sync(sc->sc_dmat, MCX_DMA_MAP(&sc->sc_doorbell_mem),
   5304 	    tx->tx_doorbell, sizeof(uint32_t), BUS_DMASYNC_POSTWRITE);
   5305 
   5306 	bus_dmamap_sync(sc->sc_dmat, MCX_DMA_MAP(&tx->tx_sq_mem),
   5307 	    0, MCX_DMA_LEN(&tx->tx_sq_mem), BUS_DMASYNC_POSTWRITE);
   5308 	mcx_dmamem_free(sc, &tx->tx_sq_mem);
   5309 
   5310 	tx->tx_sqn = 0;
   5311 	return 0;
   5312 }
   5313 
   5314 static int
   5315 mcx_ready_sq(struct mcx_softc *sc, struct mcx_tx *tx)
   5316 {
   5317 	struct mcx_cmdq_entry *cqe;
   5318 	struct mcx_dmamem mxm;
   5319 	struct mcx_cmd_modify_sq_in *in;
   5320 	struct mcx_cmd_modify_sq_mb_in *mbin;
   5321 	struct mcx_cmd_modify_sq_out *out;
   5322 	int error;
   5323 	int token;
   5324 
   5325 	cqe = MCX_DMA_KVA(&sc->sc_cmdq_mem);
   5326 	token = mcx_cmdq_token(sc);
   5327 	mcx_cmdq_init(sc, cqe, sizeof(*in) + sizeof(*mbin),
   5328 	    sizeof(*out), token);
   5329 
   5330 	in = mcx_cmdq_in(cqe);
   5331 	in->cmd_opcode = htobe16(MCX_CMD_MODIFY_SQ);
   5332 	in->cmd_op_mod = htobe16(0);
   5333 	in->cmd_sq_state = htobe32((MCX_QUEUE_STATE_RST << 28) | tx->tx_sqn);
   5334 
   5335 	if (mcx_cmdq_mboxes_alloc(sc, &mxm, 1,
   5336 	    &cqe->cq_input_ptr, token) != 0) {
   5337 		printf("%s: unable to allocate modify sq mailbox\n",
   5338 		    DEVNAME(sc));
   5339 		return (-1);
   5340 	}
   5341 	mbin = mcx_cq_mbox_data(mcx_cq_mbox(&mxm, 0));
   5342 	mbin->cmd_sq_ctx.sq_flags = htobe32(
   5343 	    MCX_QUEUE_STATE_RDY << MCX_SQ_CTX_STATE_SHIFT);
   5344 
   5345 	mcx_cmdq_mboxes_sign(&mxm, 1);
   5346 	mcx_cmdq_post(sc, cqe, 0);
   5347 	error = mcx_cmdq_poll(sc, cqe, 1000);
   5348 	if (error != 0) {
   5349 		printf("%s: modify sq timeout\n", DEVNAME(sc));
   5350 		goto free;
   5351 	}
   5352 	if (mcx_cmdq_verify(cqe) != 0) {
   5353 		printf("%s: modify sq command corrupt\n", DEVNAME(sc));
   5354 		goto free;
   5355 	}
   5356 
   5357 	out = mcx_cmdq_out(cqe);
   5358 	if (out->cmd_status != MCX_CQ_STATUS_OK) {
   5359 		printf("%s: modify sq failed (%x, %x)\n", DEVNAME(sc),
   5360 		    out->cmd_status, be32toh(out->cmd_syndrome));
   5361 		error = -1;
   5362 		goto free;
   5363 	}
   5364 
   5365 free:
   5366 	mcx_dmamem_free(sc, &mxm);
   5367 	return (error);
   5368 }
   5369 
   5370 static int
   5371 mcx_create_tis(struct mcx_softc *sc, int *tis)
   5372 {
   5373 	struct mcx_cmdq_entry *cqe;
   5374 	struct mcx_dmamem mxm;
   5375 	struct mcx_cmd_create_tis_in *in;
   5376 	struct mcx_cmd_create_tis_mb_in *mbin;
   5377 	struct mcx_cmd_create_tis_out *out;
   5378 	int error;
   5379 	int token;
   5380 
   5381 	cqe = MCX_DMA_KVA(&sc->sc_cmdq_mem);
   5382 	token = mcx_cmdq_token(sc);
   5383 	mcx_cmdq_init(sc, cqe, sizeof(*in) + sizeof(*mbin),
   5384 	    sizeof(*out), token);
   5385 
   5386 	in = mcx_cmdq_in(cqe);
   5387 	in->cmd_opcode = htobe16(MCX_CMD_CREATE_TIS);
   5388 	in->cmd_op_mod = htobe16(0);
   5389 
   5390 	if (mcx_cmdq_mboxes_alloc(sc, &mxm, 1,
   5391 	    &cqe->cq_input_ptr, token) != 0) {
   5392 		printf("%s: unable to allocate create tis mailbox\n",
   5393 		    DEVNAME(sc));
   5394 		return (-1);
   5395 	}
   5396 	mbin = mcx_cq_mbox_data(mcx_cq_mbox(&mxm, 0));
   5397 	mbin->cmd_tdomain = htobe32(sc->sc_tdomain);
   5398 
   5399 	mcx_cmdq_mboxes_sign(&mxm, 1);
   5400 	mcx_cmdq_post(sc, cqe, 0);
   5401 	error = mcx_cmdq_poll(sc, cqe, 1000);
   5402 	if (error != 0) {
   5403 		printf("%s: create tis timeout\n", DEVNAME(sc));
   5404 		goto free;
   5405 	}
   5406 	if (mcx_cmdq_verify(cqe) != 0) {
   5407 		printf("%s: create tis command corrupt\n", DEVNAME(sc));
   5408 		goto free;
   5409 	}
   5410 
   5411 	out = mcx_cmdq_out(cqe);
   5412 	if (out->cmd_status != MCX_CQ_STATUS_OK) {
   5413 		printf("%s: create tis failed (%x, %x)\n", DEVNAME(sc),
   5414 		    out->cmd_status, be32toh(out->cmd_syndrome));
   5415 		error = -1;
   5416 		goto free;
   5417 	}
   5418 
   5419 	*tis = mcx_get_id(out->cmd_tisn);
   5420 free:
   5421 	mcx_dmamem_free(sc, &mxm);
   5422 	return (error);
   5423 }
   5424 
   5425 static int
   5426 mcx_destroy_tis(struct mcx_softc *sc, int tis)
   5427 {
   5428 	struct mcx_cmdq_entry *cqe;
   5429 	struct mcx_cmd_destroy_tis_in *in;
   5430 	struct mcx_cmd_destroy_tis_out *out;
   5431 	int error;
   5432 	int token;
   5433 
   5434 	cqe = MCX_DMA_KVA(&sc->sc_cmdq_mem);
   5435 	token = mcx_cmdq_token(sc);
   5436 	mcx_cmdq_init(sc, cqe, sizeof(*in), sizeof(*out), token);
   5437 
   5438 	in = mcx_cmdq_in(cqe);
   5439 	in->cmd_opcode = htobe16(MCX_CMD_DESTROY_TIS);
   5440 	in->cmd_op_mod = htobe16(0);
   5441 	in->cmd_tisn = htobe32(tis);
   5442 
   5443 	mcx_cmdq_post(sc, cqe, 0);
   5444 	error = mcx_cmdq_poll(sc, cqe, 1000);
   5445 	if (error != 0) {
   5446 		printf("%s: destroy tis timeout\n", DEVNAME(sc));
   5447 		return error;
   5448 	}
   5449 	if (mcx_cmdq_verify(cqe) != 0) {
   5450 		printf("%s: destroy tis command corrupt\n", DEVNAME(sc));
   5451 		return error;
   5452 	}
   5453 
   5454 	out = mcx_cmdq_out(cqe);
   5455 	if (out->cmd_status != MCX_CQ_STATUS_OK) {
   5456 		printf("%s: destroy tis failed (%x, %x)\n", DEVNAME(sc),
   5457 		    out->cmd_status, be32toh(out->cmd_syndrome));
   5458 		return -1;
   5459 	}
   5460 
   5461 	return 0;
   5462 }
   5463 
   5464 static int
   5465 mcx_create_rqt(struct mcx_softc *sc, int size, int *rqns, int *rqt)
   5466 {
   5467 	struct mcx_cmdq_entry *cqe;
   5468 	struct mcx_dmamem mxm;
   5469 	struct mcx_cmd_create_rqt_in *in;
   5470 	struct mcx_cmd_create_rqt_mb_in *mbin;
   5471 	struct mcx_cmd_create_rqt_out *out;
   5472 	struct mcx_rqt_ctx *rqt_ctx;
   5473 	int *rqtn;
   5474 	int error;
   5475 	int token;
   5476 	int i;
   5477 
   5478 	cqe = MCX_DMA_KVA(&sc->sc_cmdq_mem);
   5479 	token = mcx_cmdq_token(sc);
   5480 	mcx_cmdq_init(sc, cqe, sizeof(*in) + sizeof(*mbin) +
   5481 	    (size * sizeof(int)), sizeof(*out), token);
   5482 
   5483 	in = mcx_cmdq_in(cqe);
   5484 	in->cmd_opcode = htobe16(MCX_CMD_CREATE_RQT);
   5485 	in->cmd_op_mod = htobe16(0);
   5486 
   5487 	if (mcx_cmdq_mboxes_alloc(sc, &mxm, 1,
   5488 	    &cqe->cq_input_ptr, token) != 0) {
   5489 		printf("%s: unable to allocate create rqt mailbox\n",
   5490 		    DEVNAME(sc));
   5491 		return (-1);
   5492 	}
   5493 	mbin = mcx_cq_mbox_data(mcx_cq_mbox(&mxm, 0));
   5494 	rqt_ctx = &mbin->cmd_rqt;
   5495 	rqt_ctx->cmd_rqt_max_size = htobe16(sc->sc_max_rqt_size);
   5496 	rqt_ctx->cmd_rqt_actual_size = htobe16(size);
   5497 
   5498 	/* rqt list follows the rqt context */
   5499 	rqtn = (int *)(rqt_ctx + 1);
   5500 	for (i = 0; i < size; i++) {
   5501 		rqtn[i] = htobe32(rqns[i]);
   5502 	}
   5503 
   5504 	mcx_cmdq_mboxes_sign(&mxm, 1);
   5505 	mcx_cmdq_post(sc, cqe, 0);
   5506 	error = mcx_cmdq_poll(sc, cqe, 1000);
   5507 	if (error != 0) {
   5508 		printf("%s: create rqt timeout\n", DEVNAME(sc));
   5509 		goto free;
   5510 	}
   5511 	if (mcx_cmdq_verify(cqe) != 0) {
   5512 		printf("%s: create rqt command corrupt\n", DEVNAME(sc));
   5513 		goto free;
   5514 	}
   5515 
   5516 	out = mcx_cmdq_out(cqe);
   5517 	if (out->cmd_status != MCX_CQ_STATUS_OK) {
   5518 		printf("%s: create rqt failed (%x, %x)\n", DEVNAME(sc),
   5519 		    out->cmd_status, be32toh(out->cmd_syndrome));
   5520 		error = -1;
   5521 		goto free;
   5522 	}
   5523 
   5524 	*rqt = mcx_get_id(out->cmd_rqtn);
   5525 	return (0);
   5526 free:
   5527 	mcx_dmamem_free(sc, &mxm);
   5528 	return (error);
   5529 }
   5530 
   5531 static int
   5532 mcx_destroy_rqt(struct mcx_softc *sc, int rqt)
   5533 {
   5534 	struct mcx_cmdq_entry *cqe;
   5535 	struct mcx_cmd_destroy_rqt_in *in;
   5536 	struct mcx_cmd_destroy_rqt_out *out;
   5537 	int error;
   5538 	int token;
   5539 
   5540 	cqe = MCX_DMA_KVA(&sc->sc_cmdq_mem);
   5541 	token = mcx_cmdq_token(sc);
   5542 	mcx_cmdq_init(sc, cqe, sizeof(*in), sizeof(*out), token);
   5543 
   5544 	in = mcx_cmdq_in(cqe);
   5545 	in->cmd_opcode = htobe16(MCX_CMD_DESTROY_RQT);
   5546 	in->cmd_op_mod = htobe16(0);
   5547 	in->cmd_rqtn = htobe32(rqt);
   5548 
   5549 	mcx_cmdq_post(sc, cqe, 0);
   5550 	error = mcx_cmdq_poll(sc, cqe, 1000);
   5551 	if (error != 0) {
   5552 		printf("%s: destroy rqt timeout\n", DEVNAME(sc));
   5553 		return error;
   5554 	}
   5555 	if (mcx_cmdq_verify(cqe) != 0) {
   5556 		printf("%s: destroy rqt command corrupt\n", DEVNAME(sc));
   5557 		return error;
   5558 	}
   5559 
   5560 	out = mcx_cmdq_out(cqe);
   5561 	if (out->cmd_status != MCX_CQ_STATUS_OK) {
   5562 		printf("%s: destroy rqt failed (%x, %x)\n", DEVNAME(sc),
   5563 		    out->cmd_status, be32toh(out->cmd_syndrome));
   5564 		return -1;
   5565 	}
   5566 
   5567 	return 0;
   5568 }
   5569 
   5570 #if 0
   5571 static int
   5572 mcx_alloc_flow_counter(struct mcx_softc *sc, int i)
   5573 {
   5574 	struct mcx_cmdq_entry *cqe;
   5575 	struct mcx_cmd_alloc_flow_counter_in *in;
   5576 	struct mcx_cmd_alloc_flow_counter_out *out;
   5577 	int error;
   5578 
   5579 	cqe = MCX_DMA_KVA(&sc->sc_cmdq_mem);
   5580 	mcx_cmdq_init(sc, cqe, sizeof(*in), sizeof(*out), mcx_cmdq_token(sc));
   5581 
   5582 	in = mcx_cmdq_in(cqe);
   5583 	in->cmd_opcode = htobe16(MCX_CMD_ALLOC_FLOW_COUNTER);
   5584 	in->cmd_op_mod = htobe16(0);
   5585 
   5586 	mcx_cmdq_post(sc, cqe, 0);
   5587 
   5588 	error = mcx_cmdq_poll(sc, cqe, 1000);
   5589 	if (error != 0) {
   5590 		printf("%s: alloc flow counter timeout\n", DEVNAME(sc));
   5591 		return (-1);
   5592 	}
   5593 	if (mcx_cmdq_verify(cqe) != 0) {
   5594 		printf("%s: alloc flow counter command corrupt\n", DEVNAME(sc));
   5595 		return (-1);
   5596 	}
   5597 
   5598 	out = (struct mcx_cmd_alloc_flow_counter_out *)cqe->cq_output_data;
   5599 	if (out->cmd_status != MCX_CQ_STATUS_OK) {
   5600 		printf("%s: alloc flow counter failed (%x)\n", DEVNAME(sc),
   5601 		    out->cmd_status);
   5602 		return (-1);
   5603 	}
   5604 
   5605 	sc->sc_flow_counter_id[i]  = be16toh(out->cmd_flow_counter_id);
   5606 	printf("flow counter id %d = %d\n", i, sc->sc_flow_counter_id[i]);
   5607 
   5608 	return (0);
   5609 }
   5610 #endif
   5611 
   5612 static int
   5613 mcx_create_flow_table(struct mcx_softc *sc, int log_size, int level,
   5614     int *flow_table_id)
   5615 {
   5616 	struct mcx_cmdq_entry *cqe;
   5617 	struct mcx_dmamem mxm;
   5618 	struct mcx_cmd_create_flow_table_in *in;
   5619 	struct mcx_cmd_create_flow_table_mb_in *mbin;
   5620 	struct mcx_cmd_create_flow_table_out *out;
   5621 	int error;
   5622 	int token;
   5623 
   5624 	cqe = MCX_DMA_KVA(&sc->sc_cmdq_mem);
   5625 	token = mcx_cmdq_token(sc);
   5626 	mcx_cmdq_init(sc, cqe, sizeof(*in) + sizeof(*mbin),
   5627 	    sizeof(*out), token);
   5628 
   5629 	in = mcx_cmdq_in(cqe);
   5630 	in->cmd_opcode = htobe16(MCX_CMD_CREATE_FLOW_TABLE);
   5631 	in->cmd_op_mod = htobe16(0);
   5632 
   5633 	if (mcx_cmdq_mboxes_alloc(sc, &mxm, 1,
   5634 	    &cqe->cq_input_ptr, token) != 0) {
   5635 		printf("%s: unable to allocate create flow table mailbox\n",
   5636 		    DEVNAME(sc));
   5637 		return (-1);
   5638 	}
   5639 	mbin = mcx_cq_mbox_data(mcx_cq_mbox(&mxm, 0));
   5640 	mbin->cmd_table_type = MCX_FLOW_TABLE_TYPE_RX;
   5641 	mbin->cmd_ctx.ft_log_size = log_size;
   5642 	mbin->cmd_ctx.ft_level = level;
   5643 
   5644 	mcx_cmdq_mboxes_sign(&mxm, 1);
   5645 	mcx_cmdq_post(sc, cqe, 0);
   5646 	error = mcx_cmdq_poll(sc, cqe, 1000);
   5647 	if (error != 0) {
   5648 		printf("%s: create flow table timeout\n", DEVNAME(sc));
   5649 		goto free;
   5650 	}
   5651 	if (mcx_cmdq_verify(cqe) != 0) {
   5652 		printf("%s: create flow table command corrupt\n", DEVNAME(sc));
   5653 		goto free;
   5654 	}
   5655 
   5656 	out = mcx_cmdq_out(cqe);
   5657 	if (out->cmd_status != MCX_CQ_STATUS_OK) {
   5658 		printf("%s: create flow table failed (%x, %x)\n", DEVNAME(sc),
   5659 		    out->cmd_status, be32toh(out->cmd_syndrome));
   5660 		error = -1;
   5661 		goto free;
   5662 	}
   5663 
   5664 	*flow_table_id = mcx_get_id(out->cmd_table_id);
   5665 free:
   5666 	mcx_dmamem_free(sc, &mxm);
   5667 	return (error);
   5668 }
   5669 
   5670 static int
   5671 mcx_set_flow_table_root(struct mcx_softc *sc, int flow_table_id)
   5672 {
   5673 	struct mcx_cmdq_entry *cqe;
   5674 	struct mcx_dmamem mxm;
   5675 	struct mcx_cmd_set_flow_table_root_in *in;
   5676 	struct mcx_cmd_set_flow_table_root_mb_in *mbin;
   5677 	struct mcx_cmd_set_flow_table_root_out *out;
   5678 	int error;
   5679 	int token;
   5680 
   5681 	cqe = MCX_DMA_KVA(&sc->sc_cmdq_mem);
   5682 	token = mcx_cmdq_token(sc);
   5683 	mcx_cmdq_init(sc, cqe, sizeof(*in) + sizeof(*mbin),
   5684 	    sizeof(*out), token);
   5685 
   5686 	in = mcx_cmdq_in(cqe);
   5687 	in->cmd_opcode = htobe16(MCX_CMD_SET_FLOW_TABLE_ROOT);
   5688 	in->cmd_op_mod = htobe16(0);
   5689 
   5690 	if (mcx_cmdq_mboxes_alloc(sc, &mxm, 1,
   5691 	    &cqe->cq_input_ptr, token) != 0) {
   5692 		printf("%s: unable to allocate set flow table root mailbox\n",
   5693 		    DEVNAME(sc));
   5694 		return (-1);
   5695 	}
   5696 	mbin = mcx_cq_mbox_data(mcx_cq_mbox(&mxm, 0));
   5697 	mbin->cmd_table_type = MCX_FLOW_TABLE_TYPE_RX;
   5698 	mbin->cmd_table_id = htobe32(flow_table_id);
   5699 
   5700 	mcx_cmdq_mboxes_sign(&mxm, 1);
   5701 	mcx_cmdq_post(sc, cqe, 0);
   5702 	error = mcx_cmdq_poll(sc, cqe, 1000);
   5703 	if (error != 0) {
   5704 		printf("%s: set flow table root timeout\n", DEVNAME(sc));
   5705 		goto free;
   5706 	}
   5707 	if (mcx_cmdq_verify(cqe) != 0) {
   5708 		printf("%s: set flow table root command corrupt\n",
   5709 		    DEVNAME(sc));
   5710 		goto free;
   5711 	}
   5712 
   5713 	out = mcx_cmdq_out(cqe);
   5714 	if (out->cmd_status != MCX_CQ_STATUS_OK) {
   5715 		printf("%s: set flow table root failed (%x, %x)\n",
   5716 		    DEVNAME(sc), out->cmd_status, be32toh(out->cmd_syndrome));
   5717 		error = -1;
   5718 		goto free;
   5719 	}
   5720 
   5721 free:
   5722 	mcx_dmamem_free(sc, &mxm);
   5723 	return (error);
   5724 }
   5725 
   5726 static int
   5727 mcx_destroy_flow_table(struct mcx_softc *sc, int flow_table_id)
   5728 {
   5729 	struct mcx_cmdq_entry *cqe;
   5730 	struct mcx_dmamem mxm;
   5731 	struct mcx_cmd_destroy_flow_table_in *in;
   5732 	struct mcx_cmd_destroy_flow_table_mb_in *mb;
   5733 	struct mcx_cmd_destroy_flow_table_out *out;
   5734 	int error;
   5735 	int token;
   5736 
   5737 	cqe = MCX_DMA_KVA(&sc->sc_cmdq_mem);
   5738 	token = mcx_cmdq_token(sc);
   5739 	mcx_cmdq_init(sc, cqe, sizeof(*in) + sizeof(*mb), sizeof(*out), token);
   5740 
   5741 	in = mcx_cmdq_in(cqe);
   5742 	in->cmd_opcode = htobe16(MCX_CMD_DESTROY_FLOW_TABLE);
   5743 	in->cmd_op_mod = htobe16(0);
   5744 
   5745 	if (mcx_cmdq_mboxes_alloc(sc, &mxm, 1,
   5746 	    &cqe->cq_input_ptr, token) != 0) {
   5747 		printf("%s: unable to allocate destroy flow table mailbox\n",
   5748 		    DEVNAME(sc));
   5749 		return (-1);
   5750 	}
   5751 	mb = mcx_cq_mbox_data(mcx_cq_mbox(&mxm, 0));
   5752 	mb->cmd_table_type = MCX_FLOW_TABLE_TYPE_RX;
   5753 	mb->cmd_table_id = htobe32(flow_table_id);
   5754 
   5755 	mcx_cmdq_mboxes_sign(&mxm, 1);
   5756 	mcx_cmdq_post(sc, cqe, 0);
   5757 	error = mcx_cmdq_poll(sc, cqe, 1000);
   5758 	if (error != 0) {
   5759 		printf("%s: destroy flow table timeout\n", DEVNAME(sc));
   5760 		goto free;
   5761 	}
   5762 	if (mcx_cmdq_verify(cqe) != 0) {
   5763 		printf("%s: destroy flow table command corrupt\n",
   5764 		    DEVNAME(sc));
   5765 		goto free;
   5766 	}
   5767 
   5768 	out = mcx_cmdq_out(cqe);
   5769 	if (out->cmd_status != MCX_CQ_STATUS_OK) {
   5770 		printf("%s: destroy flow table failed (%x, %x)\n", DEVNAME(sc),
   5771 		    out->cmd_status, be32toh(out->cmd_syndrome));
   5772 		error = -1;
   5773 		goto free;
   5774 	}
   5775 
   5776 free:
   5777 	mcx_dmamem_free(sc, &mxm);
   5778 	return (error);
   5779 }
   5780 
   5781 
   5782 static int
   5783 mcx_create_flow_group(struct mcx_softc *sc, int flow_table_id, int group,
   5784     int start, int size, int match_enable, struct mcx_flow_match *match)
   5785 {
   5786 	struct mcx_cmdq_entry *cqe;
   5787 	struct mcx_dmamem mxm;
   5788 	struct mcx_cmd_create_flow_group_in *in;
   5789 	struct mcx_cmd_create_flow_group_mb_in *mbin;
   5790 	struct mcx_cmd_create_flow_group_out *out;
   5791 	struct mcx_flow_group *mfg;
   5792 	int error;
   5793 	int token;
   5794 
   5795 	cqe = MCX_DMA_KVA(&sc->sc_cmdq_mem);
   5796 	token = mcx_cmdq_token(sc);
   5797 	mcx_cmdq_init(sc, cqe, sizeof(*in) + sizeof(*mbin), sizeof(*out),
   5798 	    token);
   5799 
   5800 	in = mcx_cmdq_in(cqe);
   5801 	in->cmd_opcode = htobe16(MCX_CMD_CREATE_FLOW_GROUP);
   5802 	in->cmd_op_mod = htobe16(0);
   5803 
   5804 	if (mcx_cmdq_mboxes_alloc(sc, &mxm, 2, &cqe->cq_input_ptr, token)
   5805 	    != 0) {
   5806 		printf("%s: unable to allocate create flow group mailbox\n",
   5807 		    DEVNAME(sc));
   5808 		return (-1);
   5809 	}
   5810 	mbin = mcx_cq_mbox_data(mcx_cq_mbox(&mxm, 0));
   5811 	mbin->cmd_table_type = MCX_FLOW_TABLE_TYPE_RX;
   5812 	mbin->cmd_table_id = htobe32(flow_table_id);
   5813 	mbin->cmd_start_flow_index = htobe32(start);
   5814 	mbin->cmd_end_flow_index = htobe32(start + (size - 1));
   5815 
   5816 	mbin->cmd_match_criteria_enable = match_enable;
   5817 	memcpy(&mbin->cmd_match_criteria, match, sizeof(*match));
   5818 
   5819 	mcx_cmdq_mboxes_sign(&mxm, 2);
   5820 	mcx_cmdq_post(sc, cqe, 0);
   5821 	error = mcx_cmdq_poll(sc, cqe, 1000);
   5822 	if (error != 0) {
   5823 		printf("%s: create flow group timeout\n", DEVNAME(sc));
   5824 		goto free;
   5825 	}
   5826 	if (mcx_cmdq_verify(cqe) != 0) {
   5827 		printf("%s: create flow group command corrupt\n", DEVNAME(sc));
   5828 		goto free;
   5829 	}
   5830 
   5831 	out = mcx_cmdq_out(cqe);
   5832 	if (out->cmd_status != MCX_CQ_STATUS_OK) {
   5833 		printf("%s: create flow group failed (%x, %x)\n", DEVNAME(sc),
   5834 		    out->cmd_status, be32toh(out->cmd_syndrome));
   5835 		error = -1;
   5836 		goto free;
   5837 	}
   5838 
   5839 	mfg = &sc->sc_flow_group[group];
   5840 	mfg->g_id = mcx_get_id(out->cmd_group_id);
   5841 	mfg->g_table = flow_table_id;
   5842 	mfg->g_start = start;
   5843 	mfg->g_size = size;
   5844 
   5845 free:
   5846 	mcx_dmamem_free(sc, &mxm);
   5847 	return (error);
   5848 }
   5849 
   5850 static int
   5851 mcx_destroy_flow_group(struct mcx_softc *sc, int group)
   5852 {
   5853 	struct mcx_cmdq_entry *cqe;
   5854 	struct mcx_dmamem mxm;
   5855 	struct mcx_cmd_destroy_flow_group_in *in;
   5856 	struct mcx_cmd_destroy_flow_group_mb_in *mb;
   5857 	struct mcx_cmd_destroy_flow_group_out *out;
   5858 	struct mcx_flow_group *mfg;
   5859 	int error;
   5860 	int token;
   5861 
   5862 	cqe = MCX_DMA_KVA(&sc->sc_cmdq_mem);
   5863 	token = mcx_cmdq_token(sc);
   5864 	mcx_cmdq_init(sc, cqe, sizeof(*in) + sizeof(*mb), sizeof(*out), token);
   5865 
   5866 	in = mcx_cmdq_in(cqe);
   5867 	in->cmd_opcode = htobe16(MCX_CMD_DESTROY_FLOW_GROUP);
   5868 	in->cmd_op_mod = htobe16(0);
   5869 
   5870 	if (mcx_cmdq_mboxes_alloc(sc, &mxm, 2,
   5871 	    &cqe->cq_input_ptr, token) != 0) {
   5872 		printf("%s: unable to allocate destroy flow group mailbox\n",
   5873 		    DEVNAME(sc));
   5874 		return (-1);
   5875 	}
   5876 	mb = mcx_cq_mbox_data(mcx_cq_mbox(&mxm, 0));
   5877 	mb->cmd_table_type = MCX_FLOW_TABLE_TYPE_RX;
   5878 	mfg = &sc->sc_flow_group[group];
   5879 	mb->cmd_table_id = htobe32(mfg->g_table);
   5880 	mb->cmd_group_id = htobe32(mfg->g_id);
   5881 
   5882 	mcx_cmdq_mboxes_sign(&mxm, 2);
   5883 	mcx_cmdq_post(sc, cqe, 0);
   5884 	error = mcx_cmdq_poll(sc, cqe, 1000);
   5885 	if (error != 0) {
   5886 		printf("%s: destroy flow group timeout\n", DEVNAME(sc));
   5887 		goto free;
   5888 	}
   5889 	if (mcx_cmdq_verify(cqe) != 0) {
   5890 		printf("%s: destroy flow group command corrupt\n", DEVNAME(sc));
   5891 		goto free;
   5892 	}
   5893 
   5894 	out = mcx_cmdq_out(cqe);
   5895 	if (out->cmd_status != MCX_CQ_STATUS_OK) {
   5896 		printf("%s: destroy flow group failed (%x, %x)\n", DEVNAME(sc),
   5897 		    out->cmd_status, be32toh(out->cmd_syndrome));
   5898 		error = -1;
   5899 		goto free;
   5900 	}
   5901 
   5902 	mfg->g_id = -1;
   5903 	mfg->g_table = -1;
   5904 	mfg->g_size = 0;
   5905 	mfg->g_start = 0;
   5906 free:
   5907 	mcx_dmamem_free(sc, &mxm);
   5908 	return (error);
   5909 }
   5910 
   5911 static int
   5912 mcx_set_flow_table_entry_mac(struct mcx_softc *sc, int group, int index,
   5913     const uint8_t *macaddr, uint32_t dest)
   5914 {
   5915 	struct mcx_cmdq_entry *cqe;
   5916 	struct mcx_dmamem mxm;
   5917 	struct mcx_cmd_set_flow_table_entry_in *in;
   5918 	struct mcx_cmd_set_flow_table_entry_mb_in *mbin;
   5919 	struct mcx_cmd_set_flow_table_entry_out *out;
   5920 	struct mcx_flow_group *mfg;
   5921 	uint32_t *pdest;
   5922 	int error;
   5923 	int token;
   5924 
   5925 	cqe = MCX_DMA_KVA(&sc->sc_cmdq_mem);
   5926 	token = mcx_cmdq_token(sc);
   5927 	mcx_cmdq_init(sc, cqe, sizeof(*in) + sizeof(*mbin) + sizeof(*pdest),
   5928 	    sizeof(*out), token);
   5929 
   5930 	in = mcx_cmdq_in(cqe);
   5931 	in->cmd_opcode = htobe16(MCX_CMD_SET_FLOW_TABLE_ENTRY);
   5932 	in->cmd_op_mod = htobe16(0);
   5933 
   5934 	if (mcx_cmdq_mboxes_alloc(sc, &mxm, 2, &cqe->cq_input_ptr, token)
   5935 	    != 0) {
   5936 		printf("%s: unable to allocate set flow table entry mailbox\n",
   5937 		    DEVNAME(sc));
   5938 		return (-1);
   5939 	}
   5940 
   5941 	mbin = mcx_cq_mbox_data(mcx_cq_mbox(&mxm, 0));
   5942 	mbin->cmd_table_type = MCX_FLOW_TABLE_TYPE_RX;
   5943 
   5944 	mfg = &sc->sc_flow_group[group];
   5945 	mbin->cmd_table_id = htobe32(mfg->g_table);
   5946 	mbin->cmd_flow_index = htobe32(mfg->g_start + index);
   5947 	mbin->cmd_flow_ctx.fc_group_id = htobe32(mfg->g_id);
   5948 
   5949 	/* flow context ends at offset 0x330, 0x130 into the second mbox */
   5950 	pdest = (uint32_t *)
   5951 	    (((char *)mcx_cq_mbox_data(mcx_cq_mbox(&mxm, 1))) + 0x130);
   5952 	mbin->cmd_flow_ctx.fc_action = htobe32(MCX_FLOW_CONTEXT_ACTION_FORWARD);
   5953 	mbin->cmd_flow_ctx.fc_dest_list_size = htobe32(1);
   5954 	*pdest = htobe32(dest);
   5955 
   5956 	/* the only thing we match on at the moment is the dest mac address */
   5957 	if (macaddr != NULL) {
   5958 		memcpy(mbin->cmd_flow_ctx.fc_match_value.mc_dest_mac, macaddr,
   5959 		    ETHER_ADDR_LEN);
   5960 	}
   5961 
   5962 	mcx_cmdq_mboxes_sign(&mxm, 2);
   5963 	mcx_cmdq_post(sc, cqe, 0);
   5964 	error = mcx_cmdq_poll(sc, cqe, 1000);
   5965 	if (error != 0) {
   5966 		printf("%s: set flow table entry timeout\n", DEVNAME(sc));
   5967 		goto free;
   5968 	}
   5969 	if (mcx_cmdq_verify(cqe) != 0) {
   5970 		printf("%s: set flow table entry command corrupt\n",
   5971 		    DEVNAME(sc));
   5972 		goto free;
   5973 	}
   5974 
   5975 	out = mcx_cmdq_out(cqe);
   5976 	if (out->cmd_status != MCX_CQ_STATUS_OK) {
   5977 		printf("%s: set flow table entry failed (%x, %x)\n",
   5978 		    DEVNAME(sc), out->cmd_status, be32toh(out->cmd_syndrome));
   5979 		error = -1;
   5980 		goto free;
   5981 	}
   5982 
   5983 free:
   5984 	mcx_dmamem_free(sc, &mxm);
   5985 	return (error);
   5986 }
   5987 
   5988 static int
   5989 mcx_set_flow_table_entry_proto(struct mcx_softc *sc, int group, int index,
   5990     int ethertype, int ip_proto, uint32_t dest)
   5991 {
   5992 	struct mcx_cmdq_entry *cqe;
   5993 	struct mcx_dmamem mxm;
   5994 	struct mcx_cmd_set_flow_table_entry_in *in;
   5995 	struct mcx_cmd_set_flow_table_entry_mb_in *mbin;
   5996 	struct mcx_cmd_set_flow_table_entry_out *out;
   5997 	struct mcx_flow_group *mfg;
   5998 	uint32_t *pdest;
   5999 	int error;
   6000 	int token;
   6001 
   6002 	cqe = MCX_DMA_KVA(&sc->sc_cmdq_mem);
   6003 	token = mcx_cmdq_token(sc);
   6004 	mcx_cmdq_init(sc, cqe, sizeof(*in) + sizeof(*mbin) + sizeof(*pdest),
   6005 	    sizeof(*out), token);
   6006 
   6007 	in = mcx_cmdq_in(cqe);
   6008 	in->cmd_opcode = htobe16(MCX_CMD_SET_FLOW_TABLE_ENTRY);
   6009 	in->cmd_op_mod = htobe16(0);
   6010 
   6011 	if (mcx_cmdq_mboxes_alloc(sc, &mxm, 2, &cqe->cq_input_ptr, token)
   6012 	    != 0) {
   6013 		printf("%s: unable to allocate set flow table entry mailbox\n",
   6014 		    DEVNAME(sc));
   6015 		return (-1);
   6016 	}
   6017 
   6018 	mbin = mcx_cq_mbox_data(mcx_cq_mbox(&mxm, 0));
   6019 	mbin->cmd_table_type = MCX_FLOW_TABLE_TYPE_RX;
   6020 
   6021 	mfg = &sc->sc_flow_group[group];
   6022 	mbin->cmd_table_id = htobe32(mfg->g_table);
   6023 	mbin->cmd_flow_index = htobe32(mfg->g_start + index);
   6024 	mbin->cmd_flow_ctx.fc_group_id = htobe32(mfg->g_id);
   6025 
   6026 	/* flow context ends at offset 0x330, 0x130 into the second mbox */
   6027 	pdest = (uint32_t *)
   6028 	    (((char *)mcx_cq_mbox_data(mcx_cq_mbox(&mxm, 1))) + 0x130);
   6029 	mbin->cmd_flow_ctx.fc_action = htobe32(MCX_FLOW_CONTEXT_ACTION_FORWARD);
   6030 	mbin->cmd_flow_ctx.fc_dest_list_size = htobe32(1);
   6031 	*pdest = htobe32(dest);
   6032 
   6033 	mbin->cmd_flow_ctx.fc_match_value.mc_ethertype = htobe16(ethertype);
   6034 	mbin->cmd_flow_ctx.fc_match_value.mc_ip_proto = ip_proto;
   6035 
   6036 	mcx_cmdq_mboxes_sign(&mxm, 2);
   6037 	mcx_cmdq_post(sc, cqe, 0);
   6038 	error = mcx_cmdq_poll(sc, cqe, 1000);
   6039 	if (error != 0) {
   6040 		printf("%s: set flow table entry timeout\n", DEVNAME(sc));
   6041 		goto free;
   6042 	}
   6043 	if (mcx_cmdq_verify(cqe) != 0) {
   6044 		printf("%s: set flow table entry command corrupt\n",
   6045 		    DEVNAME(sc));
   6046 		goto free;
   6047 	}
   6048 
   6049 	out = mcx_cmdq_out(cqe);
   6050 	if (out->cmd_status != MCX_CQ_STATUS_OK) {
   6051 		printf("%s: set flow table entry failed (%x, %x)\n",
   6052 		    DEVNAME(sc), out->cmd_status, be32toh(out->cmd_syndrome));
   6053 		error = -1;
   6054 		goto free;
   6055 	}
   6056 
   6057 free:
   6058 	mcx_dmamem_free(sc, &mxm);
   6059 	return (error);
   6060 }
   6061 
   6062 static int
   6063 mcx_delete_flow_table_entry(struct mcx_softc *sc, int group, int index)
   6064 {
   6065 	struct mcx_cmdq_entry *cqe;
   6066 	struct mcx_dmamem mxm;
   6067 	struct mcx_cmd_delete_flow_table_entry_in *in;
   6068 	struct mcx_cmd_delete_flow_table_entry_mb_in *mbin;
   6069 	struct mcx_cmd_delete_flow_table_entry_out *out;
   6070 	struct mcx_flow_group *mfg;
   6071 	int error;
   6072 	int token;
   6073 
   6074 	cqe = MCX_DMA_KVA(&sc->sc_cmdq_mem);
   6075 	token = mcx_cmdq_token(sc);
   6076 	mcx_cmdq_init(sc, cqe, sizeof(*in) + sizeof(*mbin), sizeof(*out),
   6077 	    token);
   6078 
   6079 	in = mcx_cmdq_in(cqe);
   6080 	in->cmd_opcode = htobe16(MCX_CMD_DELETE_FLOW_TABLE_ENTRY);
   6081 	in->cmd_op_mod = htobe16(0);
   6082 
   6083 	if (mcx_cmdq_mboxes_alloc(sc, &mxm, 2,
   6084 	    &cqe->cq_input_ptr, token) != 0) {
   6085 		printf("%s: unable to allocate "
   6086 		    "delete flow table entry mailbox\n", DEVNAME(sc));
   6087 		return (-1);
   6088 	}
   6089 	mbin = mcx_cq_mbox_data(mcx_cq_mbox(&mxm, 0));
   6090 	mbin->cmd_table_type = MCX_FLOW_TABLE_TYPE_RX;
   6091 
   6092 	mfg = &sc->sc_flow_group[group];
   6093 	mbin->cmd_table_id = htobe32(mfg->g_table);
   6094 	mbin->cmd_flow_index = htobe32(mfg->g_start + index);
   6095 
   6096 	mcx_cmdq_mboxes_sign(&mxm, 2);
   6097 	mcx_cmdq_post(sc, cqe, 0);
   6098 	error = mcx_cmdq_poll(sc, cqe, 1000);
   6099 	if (error != 0) {
   6100 		printf("%s: delete flow table entry timeout\n", DEVNAME(sc));
   6101 		goto free;
   6102 	}
   6103 	if (mcx_cmdq_verify(cqe) != 0) {
   6104 		printf("%s: delete flow table entry command corrupt\n",
   6105 		    DEVNAME(sc));
   6106 		goto free;
   6107 	}
   6108 
   6109 	out = mcx_cmdq_out(cqe);
   6110 	if (out->cmd_status != MCX_CQ_STATUS_OK) {
   6111 		printf("%s: delete flow table entry %d:%d failed (%x, %x)\n",
   6112 		    DEVNAME(sc), group, index, out->cmd_status,
   6113 		    be32toh(out->cmd_syndrome));
   6114 		error = -1;
   6115 		goto free;
   6116 	}
   6117 
   6118 free:
   6119 	mcx_dmamem_free(sc, &mxm);
   6120 	return (error);
   6121 }
   6122 
   6123 #if 0
   6124 int
   6125 mcx_dump_flow_table(struct mcx_softc *sc, int flow_table_id)
   6126 {
   6127 	struct mcx_dmamem mxm;
   6128 	struct mcx_cmdq_entry *cqe;
   6129 	struct mcx_cmd_query_flow_table_in *in;
   6130 	struct mcx_cmd_query_flow_table_mb_in *mbin;
   6131 	struct mcx_cmd_query_flow_table_out *out;
   6132 	struct mcx_cmd_query_flow_table_mb_out *mbout;
   6133 	uint8_t token = mcx_cmdq_token(sc);
   6134 	int error;
   6135 	int i;
   6136 	uint8_t *dump;
   6137 
   6138 	cqe = MCX_DMA_KVA(&sc->sc_cmdq_mem);
   6139 	mcx_cmdq_init(sc, cqe, sizeof(*in) + sizeof(*mbin),
   6140 	    sizeof(*out) + sizeof(*mbout) + 16, token);
   6141 
   6142 	in = mcx_cmdq_in(cqe);
   6143 	in->cmd_opcode = htobe16(MCX_CMD_QUERY_FLOW_TABLE);
   6144 	in->cmd_op_mod = htobe16(0);
   6145 
   6146 	CTASSERT(sizeof(*mbin) <= MCX_CMDQ_MAILBOX_DATASIZE);
   6147 	CTASSERT(sizeof(*mbout) <= MCX_CMDQ_MAILBOX_DATASIZE);
   6148 	if (mcx_cmdq_mboxes_alloc(sc, &mxm, 2,
   6149 	    &cqe->cq_output_ptr, token) != 0) {
   6150 		printf(", unable to allocate query flow table mailboxes\n");
   6151 		return (-1);
   6152 	}
   6153 	cqe->cq_input_ptr = cqe->cq_output_ptr;
   6154 
   6155 	mbin = mcx_cq_mbox_data(mcx_cq_mbox(&mxm, 0));
   6156 	mbin->cmd_table_type = 0;
   6157 	mbin->cmd_table_id = htobe32(flow_table_id);
   6158 
   6159 	mcx_cmdq_mboxes_sign(&mxm, 1);
   6160 
   6161 	mcx_cmdq_post(sc, cqe, 0);
   6162 	error = mcx_cmdq_poll(sc, cqe, 1000);
   6163 	if (error != 0) {
   6164 		printf("%s: query flow table timeout\n", DEVNAME(sc));
   6165 		goto free;
   6166 	}
   6167 	error = mcx_cmdq_verify(cqe);
   6168 	if (error != 0) {
   6169 		printf("%s: query flow table reply corrupt\n", DEVNAME(sc));
   6170 		goto free;
   6171 	}
   6172 
   6173 	out = mcx_cmdq_out(cqe);
   6174 	switch (out->cmd_status) {
   6175 	case MCX_CQ_STATUS_OK:
   6176 		break;
   6177 	default:
   6178 		printf("%s: query flow table failed (%x/%x)\n", DEVNAME(sc),
   6179 		    out->cmd_status, be32toh(out->cmd_syndrome));
   6180 		error = -1;
   6181 		goto free;
   6182 	}
   6183 
   6184         mbout = (struct mcx_cmd_query_flow_table_mb_out *)
   6185 	    (mcx_cq_mbox_data(mcx_cq_mbox(&mxm, 0)));
   6186 	dump = (uint8_t *)mbout + 8;
   6187 	for (i = 0; i < sizeof(struct mcx_flow_table_ctx); i++) {
   6188 		printf("%.2x ", dump[i]);
   6189 		if (i % 16 == 15)
   6190 			printf("\n");
   6191 	}
   6192 free:
   6193 	mcx_cq_mboxes_free(sc, &mxm);
   6194 	return (error);
   6195 }
   6196 int
   6197 mcx_dump_flow_table_entry(struct mcx_softc *sc, int flow_table_id, int index)
   6198 {
   6199 	struct mcx_dmamem mxm;
   6200 	struct mcx_cmdq_entry *cqe;
   6201 	struct mcx_cmd_query_flow_table_entry_in *in;
   6202 	struct mcx_cmd_query_flow_table_entry_mb_in *mbin;
   6203 	struct mcx_cmd_query_flow_table_entry_out *out;
   6204 	struct mcx_cmd_query_flow_table_entry_mb_out *mbout;
   6205 	uint8_t token = mcx_cmdq_token(sc);
   6206 	int error;
   6207 	int i;
   6208 	uint8_t *dump;
   6209 
   6210 	cqe = MCX_DMA_KVA(&sc->sc_cmdq_mem);
   6211 	mcx_cmdq_init(sc, cqe, sizeof(*in) + sizeof(*mbin),
   6212 	    sizeof(*out) + sizeof(*mbout) + 16, token);
   6213 
   6214 	in = mcx_cmdq_in(cqe);
   6215 	in->cmd_opcode = htobe16(MCX_CMD_QUERY_FLOW_TABLE_ENTRY);
   6216 	in->cmd_op_mod = htobe16(0);
   6217 
   6218 	CTASSERT(sizeof(*mbin) <= MCX_CMDQ_MAILBOX_DATASIZE);
   6219 	CTASSERT(sizeof(*mbout) <= MCX_CMDQ_MAILBOX_DATASIZE*2);
   6220 	if (mcx_cmdq_mboxes_alloc(sc, &mxm, 2,
   6221 	    &cqe->cq_output_ptr, token) != 0) {
   6222 		printf(", unable to allocate "
   6223 		    "query flow table entry mailboxes\n");
   6224 		return (-1);
   6225 	}
   6226 	cqe->cq_input_ptr = cqe->cq_output_ptr;
   6227 
   6228 	mbin = mcx_cq_mbox_data(mcx_cq_mbox(&mxm, 0));
   6229 	mbin->cmd_table_type = 0;
   6230 	mbin->cmd_table_id = htobe32(flow_table_id);
   6231 	mbin->cmd_flow_index = htobe32(index);
   6232 
   6233 	mcx_cmdq_mboxes_sign(&mxm, 1);
   6234 
   6235 	mcx_cmdq_post(sc, cqe, 0);
   6236 	error = mcx_cmdq_poll(sc, cqe, 1000);
   6237 	if (error != 0) {
   6238 		printf("%s: query flow table entry timeout\n", DEVNAME(sc));
   6239 		goto free;
   6240 	}
   6241 	error = mcx_cmdq_verify(cqe);
   6242 	if (error != 0) {
   6243 		printf("%s: query flow table entry reply corrupt\n",
   6244 		    DEVNAME(sc));
   6245 		goto free;
   6246 	}
   6247 
   6248 	out = mcx_cmdq_out(cqe);
   6249 	switch (out->cmd_status) {
   6250 	case MCX_CQ_STATUS_OK:
   6251 		break;
   6252 	default:
   6253 		printf("%s: query flow table entry failed (%x/%x)\n",
   6254 		    DEVNAME(sc), out->cmd_status, be32toh(out->cmd_syndrome));
   6255 		error = -1;
   6256 		goto free;
   6257 	}
   6258 
   6259         mbout = (struct mcx_cmd_query_flow_table_entry_mb_out *)
   6260 	    (mcx_cq_mbox_data(mcx_cq_mbox(&mxm, 0)));
   6261 	dump = (uint8_t *)mbout;
   6262 	for (i = 0; i < MCX_CMDQ_MAILBOX_DATASIZE; i++) {
   6263 		printf("%.2x ", dump[i]);
   6264 		if (i % 16 == 15)
   6265 			printf("\n");
   6266 	}
   6267 
   6268 free:
   6269 	mcx_cq_mboxes_free(sc, &mxm);
   6270 	return (error);
   6271 }
   6272 
   6273 int
   6274 mcx_dump_flow_group(struct mcx_softc *sc, int flow_table_id)
   6275 {
   6276 	struct mcx_dmamem mxm;
   6277 	struct mcx_cmdq_entry *cqe;
   6278 	struct mcx_cmd_query_flow_group_in *in;
   6279 	struct mcx_cmd_query_flow_group_mb_in *mbin;
   6280 	struct mcx_cmd_query_flow_group_out *out;
   6281 	struct mcx_cmd_query_flow_group_mb_out *mbout;
   6282 	uint8_t token = mcx_cmdq_token(sc);
   6283 	int error;
   6284 	int i;
   6285 	uint8_t *dump;
   6286 
   6287 	cqe = MCX_DMA_KVA(&sc->sc_cmdq_mem);
   6288 	mcx_cmdq_init(sc, cqe, sizeof(*in) + sizeof(*mbin),
   6289 	    sizeof(*out) + sizeof(*mbout) + 16, token);
   6290 
   6291 	in = mcx_cmdq_in(cqe);
   6292 	in->cmd_opcode = htobe16(MCX_CMD_QUERY_FLOW_GROUP);
   6293 	in->cmd_op_mod = htobe16(0);
   6294 
   6295 	CTASSERT(sizeof(*mbin) <= MCX_CMDQ_MAILBOX_DATASIZE);
   6296 	CTASSERT(sizeof(*mbout) <= MCX_CMDQ_MAILBOX_DATASIZE*2);
   6297 	if (mcx_cmdq_mboxes_alloc(sc, &mxm, 2,
   6298 	    &cqe->cq_output_ptr, token) != 0) {
   6299 		printf(", unable to allocate query flow group mailboxes\n");
   6300 		return (-1);
   6301 	}
   6302 	cqe->cq_input_ptr = cqe->cq_output_ptr;
   6303 
   6304 	mbin = mcx_cq_mbox_data(mcx_cq_mbox(&mxm, 0));
   6305 	mbin->cmd_table_type = 0;
   6306 	mbin->cmd_table_id = htobe32(flow_table_id);
   6307 	mbin->cmd_group_id = htobe32(sc->sc_flow_group_id);
   6308 
   6309 	mcx_cmdq_mboxes_sign(&mxm, 1);
   6310 
   6311 	mcx_cmdq_post(sc, cqe, 0);
   6312 	error = mcx_cmdq_poll(sc, cqe, 1000);
   6313 	if (error != 0) {
   6314 		printf("%s: query flow group timeout\n", DEVNAME(sc));
   6315 		goto free;
   6316 	}
   6317 	error = mcx_cmdq_verify(cqe);
   6318 	if (error != 0) {
   6319 		printf("%s: query flow group reply corrupt\n", DEVNAME(sc));
   6320 		goto free;
   6321 	}
   6322 
   6323 	out = mcx_cmdq_out(cqe);
   6324 	switch (out->cmd_status) {
   6325 	case MCX_CQ_STATUS_OK:
   6326 		break;
   6327 	default:
   6328 		printf("%s: query flow group failed (%x/%x)\n", DEVNAME(sc),
   6329 		    out->cmd_status, be32toh(out->cmd_syndrome));
   6330 		error = -1;
   6331 		goto free;
   6332 	}
   6333 
   6334         mbout = (struct mcx_cmd_query_flow_group_mb_out *)
   6335 	    (mcx_cq_mbox_data(mcx_cq_mbox(&mxm, 0)));
   6336 	dump = (uint8_t *)mbout;
   6337 	for (i = 0; i < MCX_CMDQ_MAILBOX_DATASIZE; i++) {
   6338 		printf("%.2x ", dump[i]);
   6339 		if (i % 16 == 15)
   6340 			printf("\n");
   6341 	}
   6342 	dump = (uint8_t *)(mcx_cq_mbox_data(mcx_cq_mbox(&mxm, 1)));
   6343 	for (i = 0; i < MCX_CMDQ_MAILBOX_DATASIZE; i++) {
   6344 		printf("%.2x ", dump[i]);
   6345 		if (i % 16 == 15)
   6346 			printf("\n");
   6347 	}
   6348 
   6349 free:
   6350 	mcx_cq_mboxes_free(sc, &mxm);
   6351 	return (error);
   6352 }
   6353 
   6354 static int
   6355 mcx_dump_counters(struct mcx_softc *sc)
   6356 {
   6357 	struct mcx_dmamem mxm;
   6358 	struct mcx_cmdq_entry *cqe;
   6359 	struct mcx_cmd_query_vport_counters_in *in;
   6360 	struct mcx_cmd_query_vport_counters_mb_in *mbin;
   6361 	struct mcx_cmd_query_vport_counters_out *out;
   6362 	struct mcx_nic_vport_counters *counters;
   6363 	int error, token;
   6364 
   6365 	cqe = MCX_DMA_KVA(&sc->sc_cmdq_mem);
   6366 	token = mcx_cmdq_token(sc);
   6367 	mcx_cmdq_init(sc, cqe, sizeof(*in) + sizeof(*mbin),
   6368 	    sizeof(*out) + sizeof(*counters), token);
   6369 
   6370 	in = mcx_cmdq_in(cqe);
   6371 	in->cmd_opcode = htobe16(MCX_CMD_QUERY_VPORT_COUNTERS);
   6372 	in->cmd_op_mod = htobe16(0);
   6373 
   6374 	if (mcx_cmdq_mboxes_alloc(sc, &mxm, 1,
   6375 	    &cqe->cq_output_ptr, token) != 0) {
   6376 		printf(", unable to allocate "
   6377 		    "query nic vport counters mailboxen\n");
   6378 		return (-1);
   6379 	}
   6380 	cqe->cq_input_ptr = cqe->cq_output_ptr;
   6381 
   6382 	mbin = mcx_cq_mbox_data(mcx_cq_mbox(&mxm, 0));
   6383 	mbin->cmd_clear = 0x80;
   6384 
   6385 	mcx_cmdq_mboxes_sign(&mxm, 1);
   6386 	mcx_cmdq_post(sc, cqe, 0);
   6387 
   6388 	error = mcx_cmdq_poll(sc, cqe, 1000);
   6389 	if (error != 0) {
   6390 		printf("%s: query nic vport counters timeout\n", DEVNAME(sc));
   6391 		goto free;
   6392 	}
   6393 	if (mcx_cmdq_verify(cqe) != 0) {
   6394 		printf("%s: query nic vport counters command corrupt\n",
   6395 		    DEVNAME(sc));
   6396 		goto free;
   6397 	}
   6398 
   6399 	out = mcx_cmdq_out(cqe);
   6400 	if (out->cmd_status != MCX_CQ_STATUS_OK) {
   6401 		printf("%s: query nic vport counters failed (%x, %x)\n",
   6402 		    DEVNAME(sc), out->cmd_status, betoh32(out->cmd_syndrome));
   6403 		error = -1;
   6404 		goto free;
   6405 	}
   6406 
   6407 	counters = (struct mcx_nic_vport_counters *)
   6408 	    (mcx_cq_mbox_data(mcx_cq_mbox(&mxm, 0)));
   6409 	if (counters->rx_bcast.packets + counters->tx_bcast.packets +
   6410 	    counters->rx_ucast.packets + counters->tx_ucast.packets +
   6411 	    counters->rx_err.packets + counters->tx_err.packets)
   6412 		printf("%s: err %llx/%llx uc %llx/%llx bc %llx/%llx\n",
   6413 		    DEVNAME(sc),
   6414 		    betoh64(counters->tx_err.packets),
   6415 		    betoh64(counters->rx_err.packets),
   6416 		    betoh64(counters->tx_ucast.packets),
   6417 		    betoh64(counters->rx_ucast.packets),
   6418 		    betoh64(counters->tx_bcast.packets),
   6419 		    betoh64(counters->rx_bcast.packets));
   6420 free:
   6421 	mcx_dmamem_free(sc, &mxm);
   6422 
   6423 	return (error);
   6424 }
   6425 
   6426 static int
   6427 mcx_dump_flow_counter(struct mcx_softc *sc, int index, const char *what)
   6428 {
   6429 	struct mcx_dmamem mxm;
   6430 	struct mcx_cmdq_entry *cqe;
   6431 	struct mcx_cmd_query_flow_counter_in *in;
   6432 	struct mcx_cmd_query_flow_counter_mb_in *mbin;
   6433 	struct mcx_cmd_query_flow_counter_out *out;
   6434 	struct mcx_counter *counters;
   6435 	int error, token;
   6436 
   6437 	cqe = MCX_DMA_KVA(&sc->sc_cmdq_mem);
   6438 	token = mcx_cmdq_token(sc);
   6439 	mcx_cmdq_init(sc, cqe, sizeof(*in) + sizeof(*mbin), sizeof(*out) +
   6440 	    sizeof(*counters), token);
   6441 
   6442 	in = mcx_cmdq_in(cqe);
   6443 	in->cmd_opcode = htobe16(MCX_CMD_QUERY_FLOW_COUNTER);
   6444 	in->cmd_op_mod = htobe16(0);
   6445 
   6446 	if (mcx_cmdq_mboxes_alloc(sc, &mxm, 1,
   6447 	    &cqe->cq_output_ptr, token) != 0) {
   6448 		printf(", unable to allocate query flow counter mailboxen\n");
   6449 		return (-1);
   6450 	}
   6451 	cqe->cq_input_ptr = cqe->cq_output_ptr;
   6452 	mbin = mcx_cq_mbox_data(mcx_cq_mbox(&mxm, 0));
   6453 	mbin->cmd_flow_counter_id = htobe16(sc->sc_flow_counter_id[index]);
   6454 	mbin->cmd_clear = 0x80;
   6455 
   6456 	mcx_cmdq_mboxes_sign(&mxm, 1);
   6457 	mcx_cmdq_post(sc, cqe, 0);
   6458 
   6459 	error = mcx_cmdq_poll(sc, cqe, 1000);
   6460 	if (error != 0) {
   6461 		printf("%s: query flow counter timeout\n", DEVNAME(sc));
   6462 		goto free;
   6463 	}
   6464 	if (mcx_cmdq_verify(cqe) != 0) {
   6465 		printf("%s: query flow counter command corrupt\n", DEVNAME(sc));
   6466 		goto free;
   6467 	}
   6468 
   6469 	out = mcx_cmdq_out(cqe);
   6470 	if (out->cmd_status != MCX_CQ_STATUS_OK) {
   6471 		printf("%s: query flow counter failed (%x, %x)\n", DEVNAME(sc),
   6472 		    out->cmd_status, betoh32(out->cmd_syndrome));
   6473 		error = -1;
   6474 		goto free;
   6475 	}
   6476 
   6477 	counters = (struct mcx_counter *)
   6478 	    (mcx_cq_mbox_data(mcx_cq_mbox(&mxm, 0)));
   6479 	if (counters->packets)
   6480 		printf("%s: %s inflow %llx\n", DEVNAME(sc), what,
   6481 		    betoh64(counters->packets));
   6482 free:
   6483 	mcx_dmamem_free(sc, &mxm);
   6484 
   6485 	return (error);
   6486 }
   6487 
   6488 #endif
   6489 
   6490 #if NKSTAT > 0
   6491 
   6492 int
   6493 mcx_query_rq(struct mcx_softc *sc, struct mcx_rx *rx, struct mcx_rq_ctx *rq_ctx)
   6494 {
   6495 	struct mcx_dmamem mxm;
   6496 	struct mcx_cmdq_entry *cqe;
   6497 	struct mcx_cmd_query_rq_in *in;
   6498 	struct mcx_cmd_query_rq_out *out;
   6499 	struct mcx_cmd_query_rq_mb_out *mbout;
   6500 	uint8_t token = mcx_cmdq_token(sc);
   6501 	int error;
   6502 
   6503 	cqe = MCX_DMA_KVA(&sc->sc_cmdq_mem);
   6504 	mcx_cmdq_init(sc, cqe, sizeof(*in), sizeof(*out) + sizeof(*mbout) + 16,
   6505 	    token);
   6506 
   6507 	in = mcx_cmdq_in(cqe);
   6508 	in->cmd_opcode = htobe16(MCX_CMD_QUERY_RQ);
   6509 	in->cmd_op_mod = htobe16(0);
   6510 	in->cmd_rqn = htobe32(rx->rx_rqn);
   6511 
   6512 	CTASSERT(sizeof(*mbout) <= MCX_CMDQ_MAILBOX_DATASIZE*2);
   6513 	if (mcx_cmdq_mboxes_alloc(sc, &mxm, 2,
   6514 	    &cqe->cq_output_ptr, token) != 0) {
   6515 		printf("%s: unable to allocate query rq mailboxes\n", DEVNAME(sc));
   6516 		return (-1);
   6517 	}
   6518 
   6519 	mcx_cmdq_mboxes_sign(&mxm, 1);
   6520 
   6521 	mcx_cmdq_post(sc, cqe, 0);
   6522 	error = mcx_cmdq_poll(sc, cqe, 1000);
   6523 	if (error != 0) {
   6524 		printf("%s: query rq timeout\n", DEVNAME(sc));
   6525 		goto free;
   6526 	}
   6527 	error = mcx_cmdq_verify(cqe);
   6528 	if (error != 0) {
   6529 		printf("%s: query rq reply corrupt\n", DEVNAME(sc));
   6530 		goto free;
   6531 	}
   6532 
   6533 	out = mcx_cmdq_out(cqe);
   6534 	switch (out->cmd_status) {
   6535 	case MCX_CQ_STATUS_OK:
   6536 		break;
   6537 	default:
   6538 		printf("%s: query rq failed (%x/%x)\n", DEVNAME(sc),
   6539 		    out->cmd_status, be32toh(out->cmd_syndrome));
   6540 		error = -1;
   6541 		goto free;
   6542 	}
   6543 
   6544         mbout = (struct mcx_cmd_query_rq_mb_out *)
   6545 	    (mcx_cq_mbox_data(mcx_cq_mbox(&mxm, 0)));
   6546 	memcpy(rq_ctx, &mbout->cmd_ctx, sizeof(*rq_ctx));
   6547 
   6548 free:
   6549 	mcx_cq_mboxes_free(sc, &mxm);
   6550 	return (error);
   6551 }
   6552 
   6553 int
   6554 mcx_query_sq(struct mcx_softc *sc, struct mcx_tx *tx, struct mcx_sq_ctx *sq_ctx)
   6555 {
   6556 	struct mcx_dmamem mxm;
   6557 	struct mcx_cmdq_entry *cqe;
   6558 	struct mcx_cmd_query_sq_in *in;
   6559 	struct mcx_cmd_query_sq_out *out;
   6560 	struct mcx_cmd_query_sq_mb_out *mbout;
   6561 	uint8_t token = mcx_cmdq_token(sc);
   6562 	int error;
   6563 
   6564 	cqe = MCX_DMA_KVA(&sc->sc_cmdq_mem);
   6565 	mcx_cmdq_init(sc, cqe, sizeof(*in), sizeof(*out) + sizeof(*mbout) + 16,
   6566 	    token);
   6567 
   6568 	in = mcx_cmdq_in(cqe);
   6569 	in->cmd_opcode = htobe16(MCX_CMD_QUERY_SQ);
   6570 	in->cmd_op_mod = htobe16(0);
   6571 	in->cmd_sqn = htobe32(tx->tx_sqn);
   6572 
   6573 	CTASSERT(sizeof(*mbout) <= MCX_CMDQ_MAILBOX_DATASIZE*2);
   6574 	if (mcx_cmdq_mboxes_alloc(sc, &mxm, 2,
   6575 	    &cqe->cq_output_ptr, token) != 0) {
   6576 		printf("%s: unable to allocate query sq mailboxes\n", DEVNAME(sc));
   6577 		return (-1);
   6578 	}
   6579 
   6580 	mcx_cmdq_mboxes_sign(&mxm, 1);
   6581 
   6582 	mcx_cmdq_post(sc, cqe, 0);
   6583 	error = mcx_cmdq_poll(sc, cqe, 1000);
   6584 	if (error != 0) {
   6585 		printf("%s: query sq timeout\n", DEVNAME(sc));
   6586 		goto free;
   6587 	}
   6588 	error = mcx_cmdq_verify(cqe);
   6589 	if (error != 0) {
   6590 		printf("%s: query sq reply corrupt\n", DEVNAME(sc));
   6591 		goto free;
   6592 	}
   6593 
   6594 	out = mcx_cmdq_out(cqe);
   6595 	switch (out->cmd_status) {
   6596 	case MCX_CQ_STATUS_OK:
   6597 		break;
   6598 	default:
   6599 		printf("%s: query sq failed (%x/%x)\n", DEVNAME(sc),
   6600 		    out->cmd_status, be32toh(out->cmd_syndrome));
   6601 		error = -1;
   6602 		goto free;
   6603 	}
   6604 
   6605         mbout = (struct mcx_cmd_query_sq_mb_out *)
   6606 	    (mcx_cq_mbox_data(mcx_cq_mbox(&mxm, 0)));
   6607 	memcpy(sq_ctx, &mbout->cmd_ctx, sizeof(*sq_ctx));
   6608 
   6609 free:
   6610 	mcx_cq_mboxes_free(sc, &mxm);
   6611 	return (error);
   6612 }
   6613 
   6614 int
   6615 mcx_query_cq(struct mcx_softc *sc, struct mcx_cq *cq, struct mcx_cq_ctx *cq_ctx)
   6616 {
   6617 	struct mcx_dmamem mxm;
   6618 	struct mcx_cmdq_entry *cqe;
   6619 	struct mcx_cmd_query_cq_in *in;
   6620 	struct mcx_cmd_query_cq_out *out;
   6621 	struct mcx_cq_ctx *ctx;
   6622 	uint8_t token = mcx_cmdq_token(sc);
   6623 	int error;
   6624 
   6625 	cqe = MCX_DMA_KVA(&sc->sc_cmdq_mem);
   6626 	mcx_cmdq_init(sc, cqe, sizeof(*in), sizeof(*out) + sizeof(*ctx) + 16,
   6627 	    token);
   6628 
   6629 	in = mcx_cmdq_in(cqe);
   6630 	in->cmd_opcode = htobe16(MCX_CMD_QUERY_CQ);
   6631 	in->cmd_op_mod = htobe16(0);
   6632 	in->cmd_cqn = htobe32(cq->cq_n);
   6633 
   6634 	CTASSERT(sizeof(*ctx) <= MCX_CMDQ_MAILBOX_DATASIZE*2);
   6635 	if (mcx_cmdq_mboxes_alloc(sc, &mxm, 2,
   6636 	    &cqe->cq_output_ptr, token) != 0) {
   6637 		printf("%s: unable to allocate query cq mailboxes\n",
   6638 		    DEVNAME(sc));
   6639 		return (-1);
   6640 	}
   6641 
   6642 	mcx_cmdq_mboxes_sign(&mxm, 1);
   6643 
   6644 	mcx_cmdq_post(sc, cqe, 0);
   6645 	error = mcx_cmdq_poll(sc, cqe, 1000);
   6646 	if (error != 0) {
   6647 		printf("%s: query cq timeout\n", DEVNAME(sc));
   6648 		goto free;
   6649 	}
   6650 	if (mcx_cmdq_verify(cqe) != 0) {
   6651 		printf("%s: query cq reply corrupt\n", DEVNAME(sc));
   6652 		goto free;
   6653 	}
   6654 
   6655 	out = mcx_cmdq_out(cqe);
   6656 	switch (out->cmd_status) {
   6657 	case MCX_CQ_STATUS_OK:
   6658 		break;
   6659 	default:
   6660 		printf("%s: query qc failed (%x/%x)\n", DEVNAME(sc),
   6661 		    out->cmd_status, be32toh(out->cmd_syndrome));
   6662 		error = -1;
   6663 		goto free;
   6664 	}
   6665 
   6666 	ctx = (struct mcx_cq_ctx *)(mcx_cq_mbox_data(mcx_cq_mbox(&mxm, 0)));
   6667 	memcpy(cq_ctx, ctx, sizeof(*cq_ctx));
   6668 free:
   6669 	mcx_dmamem_free(sc, &mxm);
   6670 	return (error);
   6671 }
   6672 
   6673 int
   6674 mcx_query_eq(struct mcx_softc *sc, struct mcx_eq *eq, struct mcx_eq_ctx *eq_ctx)
   6675 {
   6676 	struct mcx_dmamem mxm;
   6677 	struct mcx_cmdq_entry *cqe;
   6678 	struct mcx_cmd_query_eq_in *in;
   6679 	struct mcx_cmd_query_eq_out *out;
   6680 	struct mcq_eq_ctx *ctx;
   6681 	uint8_t token = mcx_cmdq_token(sc);
   6682 	int error;
   6683 
   6684 	cqe = MCX_DMA_KVA(&sc->sc_cmdq_mem);
   6685 	mcx_cmdq_init(sc, cqe, sizeof(*in), sizeof(*out) + sizeof(*ctx) + 16,
   6686 	    token);
   6687 
   6688 	in = mcx_cmdq_in(cqe);
   6689 	in->cmd_opcode = htobe16(MCX_CMD_QUERY_EQ);
   6690 	in->cmd_op_mod = htobe16(0);
   6691 	in->cmd_eqn = htobe32(eq->eq_n);
   6692 
   6693 	CTASSERT(sizeof(*ctx) <= MCX_CMDQ_MAILBOX_DATASIZE*2);
   6694 	if (mcx_cmdq_mboxes_alloc(sc, &mxm, 2,
   6695 	    &cqe->cq_output_ptr, token) != 0) {
   6696 		printf("%s: unable to allocate query eq mailboxes\n",
   6697 		    DEVNAME(sc));
   6698 		return (-1);
   6699 	}
   6700 
   6701 	mcx_cmdq_mboxes_sign(&mxm, 1);
   6702 
   6703 	mcx_cmdq_post(sc, cqe, 0);
   6704 	error = mcx_cmdq_poll(sc, cqe, 1000);
   6705 	if (error != 0) {
   6706 		printf("%s: query eq timeout\n", DEVNAME(sc));
   6707 		goto free;
   6708 	}
   6709 	if (mcx_cmdq_verify(cqe) != 0) {
   6710 		printf("%s: query eq reply corrupt\n", DEVNAME(sc));
   6711 		goto free;
   6712 	}
   6713 
   6714 	out = mcx_cmdq_out(cqe);
   6715 	switch (out->cmd_status) {
   6716 	case MCX_CQ_STATUS_OK:
   6717 		break;
   6718 	default:
   6719 		printf("%s: query eq failed (%x/%x)\n", DEVNAME(sc),
   6720 		    out->cmd_status, be32toh(out->cmd_syndrome));
   6721 		error = -1;
   6722 		goto free;
   6723 	}
   6724 
   6725 	ctx = (struct mcx_eq_ctx *)(mcx_cq_mbox_data(mcx_cq_mbox(&mxm, 0)));
   6726 	memcpy(eq_ctx, ctx, sizeof(*eq_ctx));
   6727 free:
   6728 	mcx_dmamem_free(sc, &mxm);
   6729 	return (error);
   6730 }
   6731 
   6732 #endif /* NKSTAT > 0 */
   6733 
   6734 
   6735 static inline unsigned int
   6736 mcx_rx_fill_slots(struct mcx_softc *sc, struct mcx_rx *rx, uint nslots)
   6737 {
   6738 	struct mcx_rq_entry *ring, *rqe;
   6739 	struct mcx_slot *ms;
   6740 	struct mbuf *m;
   6741 	uint slot, p, fills;
   6742 
   6743 	ring = MCX_DMA_KVA(&rx->rx_rq_mem);
   6744 	p = rx->rx_prod;
   6745 
   6746 	bus_dmamap_sync(sc->sc_dmat, MCX_DMA_MAP(&rx->rx_rq_mem),
   6747 	    0, MCX_DMA_LEN(&rx->rx_rq_mem), BUS_DMASYNC_POSTWRITE);
   6748 
   6749 	slot = (p % (1 << MCX_LOG_RQ_SIZE));
   6750 	rqe = ring;
   6751 	for (fills = 0; fills < nslots; fills++) {
   6752 		slot = p % (1 << MCX_LOG_RQ_SIZE);
   6753 
   6754 		ms = &rx->rx_slots[slot];
   6755 		rqe = &ring[slot];
   6756 
   6757 		m = NULL;
   6758 		MGETHDR(m, M_DONTWAIT, MT_DATA);
   6759 		if (m == NULL)
   6760 			break;
   6761 
   6762 		MCLGET(m, M_DONTWAIT);
   6763 		if ((m->m_flags & M_EXT) == 0) {
   6764 			m_freem(m);
   6765 			break;
   6766 		}
   6767 
   6768 		m->m_len = m->m_pkthdr.len = sc->sc_hardmtu;
   6769 		m_adj(m, m->m_ext.ext_size - sc->sc_rxbufsz);
   6770 		m_adj(m, ETHER_ALIGN);
   6771 
   6772 		if (bus_dmamap_load_mbuf(sc->sc_dmat, ms->ms_map, m,
   6773 		    BUS_DMA_NOWAIT) != 0) {
   6774 			m_freem(m);
   6775 			break;
   6776 		}
   6777 		bus_dmamap_sync(sc->sc_dmat, ms->ms_map, 0, ms->ms_map->dm_mapsize, BUS_DMASYNC_PREREAD);
   6778 		ms->ms_m = m;
   6779 
   6780 		be32enc(&rqe->rqe_byte_count, ms->ms_map->dm_segs[0].ds_len);
   6781 		be64enc(&rqe->rqe_addr, ms->ms_map->dm_segs[0].ds_addr);
   6782 		be32enc(&rqe->rqe_lkey, sc->sc_lkey);
   6783 
   6784 		p++;
   6785 	}
   6786 
   6787 	bus_dmamap_sync(sc->sc_dmat, MCX_DMA_MAP(&rx->rx_rq_mem),
   6788 	    0, MCX_DMA_LEN(&rx->rx_rq_mem), BUS_DMASYNC_PREWRITE);
   6789 
   6790 	rx->rx_prod = p;
   6791 
   6792 	bus_dmamap_sync(sc->sc_dmat, MCX_DMA_MAP(&sc->sc_doorbell_mem),
   6793 	    rx->rx_doorbell, sizeof(uint32_t), BUS_DMASYNC_POSTWRITE);
   6794 	be32enc(MCX_DMA_OFF(&sc->sc_doorbell_mem, rx->rx_doorbell),
   6795 	    p & MCX_WQ_DOORBELL_MASK);
   6796 	bus_dmamap_sync(sc->sc_dmat, MCX_DMA_MAP(&sc->sc_doorbell_mem),
   6797 	    rx->rx_doorbell, sizeof(uint32_t), BUS_DMASYNC_PREWRITE);
   6798 
   6799 	return (nslots - fills);
   6800 }
   6801 
   6802 static int
   6803 mcx_rx_fill(struct mcx_softc *sc, struct mcx_rx *rx)
   6804 {
   6805 	u_int slots;
   6806 
   6807 	slots = mcx_rxr_get(&rx->rx_rxr, (1 << MCX_LOG_RQ_SIZE));
   6808 	if (slots == 0)
   6809 		return (1);
   6810 
   6811 	slots = mcx_rx_fill_slots(sc, rx, slots);
   6812 	mcx_rxr_put(&rx->rx_rxr, slots);
   6813 	return (0);
   6814 }
   6815 
   6816 void
   6817 mcx_refill(void *xrx)
   6818 {
   6819 	struct mcx_rx *rx = xrx;
   6820 	struct mcx_softc *sc = rx->rx_softc;
   6821 
   6822 	mcx_rx_fill(sc, rx);
   6823 
   6824 	if (mcx_rxr_inuse(&rx->rx_rxr) == 0)
   6825 		callout_schedule(&rx->rx_refill, 1);
   6826 }
   6827 
   6828 static int
   6829 mcx_process_txeof(struct mcx_softc *sc, struct mcx_tx *tx,
   6830     struct mcx_cq_entry *cqe)
   6831 {
   6832 	struct mcx_slot *ms;
   6833 	bus_dmamap_t map;
   6834 	int slot, slots;
   6835 
   6836 	slot = be16toh(cqe->cq_wqe_count) % (1 << MCX_LOG_SQ_SIZE);
   6837 
   6838 	ms = &tx->tx_slots[slot];
   6839 	map = ms->ms_map;
   6840 	bus_dmamap_sync(sc->sc_dmat, map, 0, map->dm_mapsize,
   6841 	    BUS_DMASYNC_POSTWRITE);
   6842 
   6843 	slots = 1;
   6844 	if (map->dm_nsegs > 1)
   6845 		slots += (map->dm_nsegs+2) / MCX_SQ_SEGS_PER_SLOT;
   6846 
   6847 	bus_dmamap_unload(sc->sc_dmat, map);
   6848 	m_freem(ms->ms_m);
   6849 	ms->ms_m = NULL;
   6850 
   6851 	return (slots);
   6852 }
   6853 
   6854 static uint64_t
   6855 mcx_uptime(void)
   6856 {
   6857 	struct timespec ts;
   6858 
   6859 	nanouptime(&ts);
   6860 
   6861 	return ((uint64_t)ts.tv_sec * 1000000000 + (uint64_t)ts.tv_nsec);
   6862 }
   6863 
   6864 static void
   6865 mcx_calibrate_first(struct mcx_softc *sc)
   6866 {
   6867 	struct mcx_calibration *c = &sc->sc_calibration[0];
   6868 	int s;
   6869 
   6870 	sc->sc_calibration_gen = 0;
   6871 
   6872 	s = splhigh(); /* crit_enter? */
   6873 	c->c_ubase = mcx_uptime();
   6874 	c->c_tbase = mcx_timer(sc);
   6875 	splx(s);
   6876 	c->c_ratio = 0;
   6877 
   6878 #if notyet
   6879 	callout_schedule(&sc->sc_calibrate, MCX_CALIBRATE_FIRST * hz);
   6880 #endif
   6881 }
   6882 
   6883 #define MCX_TIMESTAMP_SHIFT 24
   6884 
   6885 static void
   6886 mcx_calibrate(void *arg)
   6887 {
   6888 	struct mcx_softc *sc = arg;
   6889 	struct mcx_calibration *nc, *pc;
   6890 	uint64_t udiff, tdiff;
   6891 	unsigned int gen;
   6892 	int s;
   6893 
   6894 	if (!ISSET(sc->sc_ec.ec_if.if_flags, IFF_RUNNING))
   6895 		return;
   6896 
   6897 	callout_schedule(&sc->sc_calibrate, MCX_CALIBRATE_NORMAL * hz);
   6898 
   6899 	gen = sc->sc_calibration_gen;
   6900 	pc = &sc->sc_calibration[gen % __arraycount(sc->sc_calibration)];
   6901 	gen++;
   6902 	nc = &sc->sc_calibration[gen % __arraycount(sc->sc_calibration)];
   6903 
   6904 	nc->c_uptime = pc->c_ubase;
   6905 	nc->c_timestamp = pc->c_tbase;
   6906 
   6907 	s = splhigh(); /* crit_enter? */
   6908 	nc->c_ubase = mcx_uptime();
   6909 	nc->c_tbase = mcx_timer(sc);
   6910 	splx(s);
   6911 
   6912 	udiff = nc->c_ubase - nc->c_uptime;
   6913 	tdiff = nc->c_tbase - nc->c_timestamp;
   6914 
   6915 	/*
   6916 	 * udiff is the wall clock time between calibration ticks,
   6917 	 * which should be 32 seconds or 32 billion nanoseconds. if
   6918 	 * we squint, 1 billion nanoseconds is kind of like a 32 bit
   6919 	 * number, so 32 billion should still have a lot of high bits
   6920 	 * spare. we use this space by shifting the nanoseconds up
   6921 	 * 24 bits so we have a nice big number to divide by the
   6922 	 * number of mcx timer ticks.
   6923 	 */
   6924 	nc->c_ratio = (udiff << MCX_TIMESTAMP_SHIFT) / tdiff;
   6925 
   6926 	membar_producer();
   6927 	sc->sc_calibration_gen = gen;
   6928 }
   6929 
   6930 static int
   6931 mcx_process_rx(struct mcx_softc *sc, struct mcx_rx *rx,
   6932     struct mcx_cq_entry *cqe, struct mcx_mbufq *mq,
   6933     const struct mcx_calibration *c)
   6934 {
   6935 	struct ifnet *ifp = &sc->sc_ec.ec_if;
   6936 	struct mcx_slot *ms;
   6937 	struct mbuf *m;
   6938 	uint32_t flags, len;
   6939 	int slot;
   6940 
   6941 	len = be32dec(&cqe->cq_byte_cnt);
   6942 	slot = be16toh(cqe->cq_wqe_count) % (1 << MCX_LOG_RQ_SIZE);
   6943 
   6944 	ms = &rx->rx_slots[slot];
   6945 	bus_dmamap_sync(sc->sc_dmat, ms->ms_map, 0, len, BUS_DMASYNC_POSTREAD);
   6946 	bus_dmamap_unload(sc->sc_dmat, ms->ms_map);
   6947 
   6948 	m = ms->ms_m;
   6949 	ms->ms_m = NULL;
   6950 
   6951 	m_set_rcvif(m, &sc->sc_ec.ec_if);
   6952 	m->m_pkthdr.len = m->m_len = len;
   6953 
   6954 #if 0
   6955 	if (cqe->cq_rx_hash_type) {
   6956 		m->m_pkthdr.ph_flowid = be32toh(cqe->cq_rx_hash);
   6957 		m->m_pkthdr.csum_flags |= M_FLOWID;
   6958 	}
   6959 #endif
   6960 
   6961 	flags = be32dec(&cqe->cq_flags);
   6962 	if (flags & MCX_CQ_ENTRY_FLAGS_L3_OK) {
   6963 		if (ifp->if_capenable & IFCAP_CSUM_IPv4_Rx)
   6964 			m->m_pkthdr.csum_flags |= M_CSUM_IPv4;
   6965 	}
   6966 	if (flags & MCX_CQ_ENTRY_FLAGS_L4_OK) {
   6967 		if (ifp->if_capenable & IFCAP_CSUM_TCPv4_Rx)
   6968 			m->m_pkthdr.csum_flags |= M_CSUM_TCPv4;
   6969 		if (ifp->if_capenable & IFCAP_CSUM_TCPv6_Rx)
   6970 			m->m_pkthdr.csum_flags |= M_CSUM_TCPv6;
   6971 		if (ifp->if_capenable & IFCAP_CSUM_UDPv4_Rx)
   6972 			m->m_pkthdr.csum_flags |= M_CSUM_UDPv4;
   6973 		if (ifp->if_capenable & IFCAP_CSUM_UDPv6_Rx)
   6974 			m->m_pkthdr.csum_flags |= M_CSUM_UDPv6;
   6975 	}
   6976 	if (flags & MCX_CQ_ENTRY_FLAGS_CV) {
   6977 		vlan_set_tag(m, flags & MCX_CQ_ENTRY_FLAGS_VLAN_MASK);
   6978 	}
   6979 
   6980 #if notyet
   6981 	if (ISSET(sc->sc_ec.ec_if.if_flags, IFF_LINK0) && c->c_ratio) {
   6982 		uint64_t t = be64dec(&cqe->cq_timestamp);
   6983 		t -= c->c_timestamp;
   6984 		t *= c->c_ratio;
   6985 		t >>= MCX_TIMESTAMP_SHIFT;
   6986 		t += c->c_uptime;
   6987 
   6988 		m->m_pkthdr.ph_timestamp = t;
   6989 		SET(m->m_pkthdr.csum_flags, M_TIMESTAMP);
   6990 	}
   6991 #endif
   6992 
   6993 	MBUFQ_ENQUEUE(mq, m);
   6994 
   6995 	return (1);
   6996 }
   6997 
   6998 static struct mcx_cq_entry *
   6999 mcx_next_cq_entry(struct mcx_softc *sc, struct mcx_cq *cq)
   7000 {
   7001 	struct mcx_cq_entry *cqe;
   7002 	int next;
   7003 
   7004 	cqe = (struct mcx_cq_entry *)MCX_DMA_KVA(&cq->cq_mem);
   7005 	next = cq->cq_cons % (1 << MCX_LOG_CQ_SIZE);
   7006 
   7007 	if ((cqe[next].cq_opcode_owner & MCX_CQ_ENTRY_FLAG_OWNER) ==
   7008 	    ((cq->cq_cons >> MCX_LOG_CQ_SIZE) & 1)) {
   7009 		return (&cqe[next]);
   7010 	}
   7011 
   7012 	return (NULL);
   7013 }
   7014 
   7015 static void
   7016 mcx_arm_cq(struct mcx_softc *sc, struct mcx_cq *cq, int uar)
   7017 {
   7018 	struct mcx_cq_doorbell *db;
   7019 	bus_size_t offset;
   7020 	uint32_t val;
   7021 	uint64_t uval;
   7022 
   7023 	val = ((cq->cq_count) & 3) << MCX_CQ_DOORBELL_ARM_CMD_SN_SHIFT;
   7024 	val |= (cq->cq_cons & MCX_CQ_DOORBELL_ARM_CI_MASK);
   7025 
   7026 	db = MCX_DMA_OFF(&sc->sc_doorbell_mem, cq->cq_doorbell);
   7027 
   7028 	bus_dmamap_sync(sc->sc_dmat, MCX_DMA_MAP(&sc->sc_doorbell_mem),
   7029 	    cq->cq_doorbell, sizeof(*db), BUS_DMASYNC_POSTWRITE);
   7030 
   7031 	be32enc(&db->db_update_ci, cq->cq_cons & MCX_CQ_DOORBELL_ARM_CI_MASK);
   7032 	be32enc(&db->db_arm_ci, val);
   7033 
   7034 	bus_dmamap_sync(sc->sc_dmat, MCX_DMA_MAP(&sc->sc_doorbell_mem),
   7035 	    cq->cq_doorbell, sizeof(*db), BUS_DMASYNC_PREWRITE);
   7036 
   7037 	offset = (MCX_PAGE_SIZE * uar) + MCX_UAR_CQ_DOORBELL;
   7038 
   7039 	uval = (uint64_t)val << 32;
   7040 	uval |= cq->cq_n;
   7041 
   7042 	bus_space_write_8(sc->sc_memt, sc->sc_memh, offset, htobe64(uval));
   7043 	mcx_bar(sc, offset, sizeof(uval), BUS_SPACE_BARRIER_WRITE);
   7044 }
   7045 
   7046 void
   7047 mcx_process_cq(struct mcx_softc *sc, struct mcx_queues *q, struct mcx_cq *cq)
   7048 {
   7049 	struct mcx_rx *rx = &q->q_rx;
   7050 	struct mcx_tx *tx = &q->q_tx;
   7051 	struct ifnet *ifp = &sc->sc_ec.ec_if;
   7052 	const struct mcx_calibration *c;
   7053 	unsigned int gen;
   7054 	struct mcx_cq_entry *cqe;
   7055 	struct mcx_mbufq mq;
   7056 	struct mbuf *m;
   7057 	int rxfree, txfree;
   7058 
   7059 	MBUFQ_INIT(&mq);
   7060 
   7061 	gen = sc->sc_calibration_gen;
   7062 	membar_consumer();
   7063 	c = &sc->sc_calibration[gen % __arraycount(sc->sc_calibration)];
   7064 
   7065 	bus_dmamap_sync(sc->sc_dmat, MCX_DMA_MAP(&cq->cq_mem),
   7066 	    0, MCX_DMA_LEN(&cq->cq_mem), BUS_DMASYNC_POSTREAD);
   7067 
   7068 	rxfree = 0;
   7069 	txfree = 0;
   7070 	while ((cqe = mcx_next_cq_entry(sc, cq))) {
   7071 		uint8_t opcode;
   7072 		opcode = (cqe->cq_opcode_owner >> MCX_CQ_ENTRY_OPCODE_SHIFT);
   7073 		switch (opcode) {
   7074 		case MCX_CQ_ENTRY_OPCODE_REQ:
   7075 			txfree += mcx_process_txeof(sc, tx, cqe);
   7076 			break;
   7077 		case MCX_CQ_ENTRY_OPCODE_SEND:
   7078 			rxfree += mcx_process_rx(sc, rx, cqe, &mq, c);
   7079 			break;
   7080 		case MCX_CQ_ENTRY_OPCODE_REQ_ERR:
   7081 		case MCX_CQ_ENTRY_OPCODE_SEND_ERR:
   7082 			/* uint8_t *cqp = (uint8_t *)cqe; */
   7083 			/* printf("%s: cq completion error: %x\n",
   7084 			    DEVNAME(sc), cqp[0x37]); */
   7085 			break;
   7086 
   7087 		default:
   7088 			/* printf("%s: cq completion opcode %x??\n",
   7089 			    DEVNAME(sc), opcode); */
   7090 			break;
   7091 		}
   7092 
   7093 		cq->cq_cons++;
   7094 	}
   7095 
   7096 	bus_dmamap_sync(sc->sc_dmat, MCX_DMA_MAP(&cq->cq_mem),
   7097 	    0, MCX_DMA_LEN(&cq->cq_mem), BUS_DMASYNC_PREREAD);
   7098 
   7099 	if (rxfree > 0) {
   7100 		mcx_rxr_put(&rx->rx_rxr, rxfree);
   7101 		while (MBUFQ_FIRST(&mq) != NULL) {
   7102 			MBUFQ_DEQUEUE(&mq, m);
   7103 			if_percpuq_enqueue(ifp->if_percpuq, m);
   7104 		}
   7105 
   7106 		mcx_rx_fill(sc, rx);
   7107 		if (mcx_rxr_inuse(&rx->rx_rxr) == 0)
   7108 			callout_schedule(&rx->rx_refill, 1);
   7109 	}
   7110 
   7111 	cq->cq_count++;
   7112 	mcx_arm_cq(sc, cq, q->q_uar);
   7113 
   7114 	if (txfree > 0) {
   7115 		tx->tx_cons += txfree;
   7116 		if_schedule_deferred_start(ifp);
   7117 	}
   7118 }
   7119 
   7120 
   7121 static void
   7122 mcx_arm_eq(struct mcx_softc *sc, struct mcx_eq *eq, int uar)
   7123 {
   7124 	bus_size_t offset;
   7125 	uint32_t val;
   7126 
   7127 	offset = (MCX_PAGE_SIZE * uar) + MCX_UAR_EQ_DOORBELL_ARM;
   7128 	val = (eq->eq_n << 24) | (eq->eq_cons & 0xffffff);
   7129 
   7130 	mcx_wr(sc, offset, val);
   7131 	mcx_bar(sc, offset, sizeof(val), BUS_SPACE_BARRIER_WRITE);
   7132 }
   7133 
   7134 static struct mcx_eq_entry *
   7135 mcx_next_eq_entry(struct mcx_softc *sc, struct mcx_eq *eq)
   7136 {
   7137 	struct mcx_eq_entry *eqe;
   7138 	int next;
   7139 
   7140 	eqe = (struct mcx_eq_entry *)MCX_DMA_KVA(&eq->eq_mem);
   7141 	next = eq->eq_cons % (1 << MCX_LOG_EQ_SIZE);
   7142 	if ((eqe[next].eq_owner & 1) ==
   7143 	    ((eq->eq_cons >> MCX_LOG_EQ_SIZE) & 1)) {
   7144 		eq->eq_cons++;
   7145 		return (&eqe[next]);
   7146 	}
   7147 	return (NULL);
   7148 }
   7149 
   7150 int
   7151 mcx_admin_intr(void *xsc)
   7152 {
   7153 	struct mcx_softc *sc = (struct mcx_softc *)xsc;
   7154 	struct mcx_eq *eq = &sc->sc_admin_eq;
   7155 	struct mcx_eq_entry *eqe;
   7156 
   7157 	bus_dmamap_sync(sc->sc_dmat, MCX_DMA_MAP(&eq->eq_mem),
   7158 	    0, MCX_DMA_LEN(&eq->eq_mem), BUS_DMASYNC_POSTREAD);
   7159 
   7160 	while ((eqe = mcx_next_eq_entry(sc, eq)) != NULL) {
   7161 		switch (eqe->eq_event_type) {
   7162 		case MCX_EVENT_TYPE_LAST_WQE:
   7163 			/* printf("%s: last wqe reached?\n", DEVNAME(sc)); */
   7164 			break;
   7165 
   7166 		case MCX_EVENT_TYPE_CQ_ERROR:
   7167 			/* printf("%s: cq error\n", DEVNAME(sc)); */
   7168 			break;
   7169 
   7170 		case MCX_EVENT_TYPE_CMD_COMPLETION:
   7171 			/* wakeup probably */
   7172 			break;
   7173 
   7174 		case MCX_EVENT_TYPE_PORT_CHANGE:
   7175 			workqueue_enqueue(sc->sc_workq, &sc->sc_port_change, NULL);
   7176 			break;
   7177 
   7178 		default:
   7179 			/* printf("%s: something happened\n", DEVNAME(sc)); */
   7180 			break;
   7181 		}
   7182 	}
   7183 
   7184 	bus_dmamap_sync(sc->sc_dmat, MCX_DMA_MAP(&eq->eq_mem),
   7185 	    0, MCX_DMA_LEN(&eq->eq_mem), BUS_DMASYNC_PREREAD);
   7186 
   7187 	mcx_arm_eq(sc, eq, sc->sc_uar);
   7188 
   7189 	return (1);
   7190 }
   7191 
   7192 int
   7193 mcx_cq_intr(void *xq)
   7194 {
   7195 	struct mcx_queues *q = (struct mcx_queues *)xq;
   7196 	struct mcx_softc *sc = q->q_sc;
   7197 	struct mcx_eq *eq = &q->q_eq;
   7198 	struct mcx_eq_entry *eqe;
   7199 	int cqn;
   7200 
   7201 	bus_dmamap_sync(sc->sc_dmat, MCX_DMA_MAP(&eq->eq_mem),
   7202 	    0, MCX_DMA_LEN(&eq->eq_mem), BUS_DMASYNC_POSTREAD);
   7203 
   7204 	while ((eqe = mcx_next_eq_entry(sc, eq)) != NULL) {
   7205 		switch (eqe->eq_event_type) {
   7206 		case MCX_EVENT_TYPE_COMPLETION:
   7207 			cqn = be32toh(eqe->eq_event_data[6]);
   7208 			if (cqn == q->q_cq.cq_n)
   7209 				mcx_process_cq(sc, q, &q->q_cq);
   7210 			break;
   7211 		}
   7212 	}
   7213 
   7214 	bus_dmamap_sync(sc->sc_dmat, MCX_DMA_MAP(&eq->eq_mem),
   7215 	    0, MCX_DMA_LEN(&eq->eq_mem), BUS_DMASYNC_PREREAD);
   7216 
   7217 	mcx_arm_eq(sc, eq, q->q_uar);
   7218 
   7219 	return (1);
   7220 }
   7221 
   7222 static void
   7223 mcx_free_slots(struct mcx_softc *sc, struct mcx_slot *slots, int allocated,
   7224     int total)
   7225 {
   7226 	struct mcx_slot *ms;
   7227 
   7228 	int i = allocated;
   7229 	while (i-- > 0) {
   7230 		ms = &slots[i];
   7231 		bus_dmamap_destroy(sc->sc_dmat, ms->ms_map);
   7232 		m_freem(ms->ms_m);
   7233 	}
   7234 	kmem_free(slots, total * sizeof(*ms));
   7235 }
   7236 
   7237 static int
   7238 mcx_queue_up(struct mcx_softc *sc, struct mcx_queues *q)
   7239 {
   7240 	struct mcx_rx *rx;
   7241 	struct mcx_tx *tx;
   7242 	struct mcx_slot *ms;
   7243 	int i;
   7244 
   7245 	rx = &q->q_rx;
   7246 	rx->rx_slots = kmem_zalloc(sizeof(*ms) * (1 << MCX_LOG_RQ_SIZE),
   7247 	    KM_SLEEP);
   7248 
   7249 	for (i = 0; i < (1 << MCX_LOG_RQ_SIZE); i++) {
   7250 		ms = &rx->rx_slots[i];
   7251 		if (bus_dmamap_create(sc->sc_dmat, sc->sc_hardmtu, 1,
   7252 		    sc->sc_hardmtu, 0,
   7253 		    BUS_DMA_WAITOK | BUS_DMA_ALLOCNOW,
   7254 		    &ms->ms_map) != 0) {
   7255 			printf("%s: failed to allocate rx dma maps\n",
   7256 			    DEVNAME(sc));
   7257 			goto destroy_rx_slots;
   7258 		}
   7259 	}
   7260 
   7261 	tx = &q->q_tx;
   7262 	tx->tx_slots = kmem_zalloc(sizeof(*ms) * (1 << MCX_LOG_SQ_SIZE),
   7263 	     KM_SLEEP);
   7264 
   7265 	for (i = 0; i < (1 << MCX_LOG_SQ_SIZE); i++) {
   7266 		ms = &tx->tx_slots[i];
   7267 		if (bus_dmamap_create(sc->sc_dmat, sc->sc_hardmtu,
   7268 		    MCX_SQ_MAX_SEGMENTS, sc->sc_hardmtu, 0,
   7269 		    BUS_DMA_WAITOK | BUS_DMA_ALLOCNOW,
   7270 		    &ms->ms_map) != 0) {
   7271 			printf("%s: failed to allocate tx dma maps\n",
   7272 			    DEVNAME(sc));
   7273 			goto destroy_tx_slots;
   7274 		}
   7275 	}
   7276 
   7277 	if (mcx_create_cq(sc, &q->q_cq, q->q_uar, q->q_index,
   7278 	    q->q_eq.eq_n) != 0)
   7279 		goto destroy_tx_slots;
   7280 
   7281 	if (mcx_create_sq(sc, tx, q->q_uar, q->q_index, q->q_cq.cq_n)
   7282 	    != 0)
   7283 		goto destroy_cq;
   7284 
   7285 	if (mcx_create_rq(sc, rx, q->q_index, q->q_cq.cq_n) != 0)
   7286 		goto destroy_sq;
   7287 
   7288 	return 0;
   7289 
   7290 destroy_sq:
   7291 	mcx_destroy_sq(sc, tx);
   7292 destroy_cq:
   7293 	mcx_destroy_cq(sc, &q->q_cq);
   7294 destroy_tx_slots:
   7295 	mcx_free_slots(sc, tx->tx_slots, i, (1 << MCX_LOG_SQ_SIZE));
   7296 	tx->tx_slots = NULL;
   7297 
   7298 	i = (1 << MCX_LOG_RQ_SIZE);
   7299 destroy_rx_slots:
   7300 	mcx_free_slots(sc, rx->rx_slots, i, (1 << MCX_LOG_RQ_SIZE));
   7301 	rx->rx_slots = NULL;
   7302 	return ENOMEM;
   7303 }
   7304 
   7305 static int
   7306 mcx_rss_group_entry_count(struct mcx_softc *sc, int group)
   7307 {
   7308 	int i;
   7309 	int count;
   7310 
   7311 	count = 0;
   7312 	for (i = 0; i < __arraycount(mcx_rss_config); i++) {
   7313 		if (mcx_rss_config[i].flow_group == group)
   7314 			count++;
   7315 	}
   7316 
   7317 	return count;
   7318 }
   7319 
   7320 static int
   7321 mcx_init(struct ifnet *ifp)
   7322 {
   7323 	struct mcx_softc *sc = ifp->if_softc;
   7324 	struct mcx_rx *rx;
   7325 	struct mcx_tx *tx;
   7326 	int i, start, count, flow_group, flow_index;
   7327 	struct mcx_flow_match match_crit;
   7328 	struct mcx_rss_rule *rss;
   7329 	uint32_t dest;
   7330 	int rqns[MCX_MAX_QUEUES] = { 0 };
   7331 
   7332 	if (ISSET(ifp->if_flags, IFF_RUNNING))
   7333 		mcx_stop(ifp, 0);
   7334 
   7335 	if (mcx_create_tis(sc, &sc->sc_tis) != 0)
   7336 		goto down;
   7337 
   7338 	for (i = 0; i < sc->sc_nqueues; i++) {
   7339 		if (mcx_queue_up(sc, &sc->sc_queues[i]) != 0) {
   7340 			goto down;
   7341 		}
   7342 	}
   7343 
   7344 	/* RSS flow table and flow groups */
   7345 	if (mcx_create_flow_table(sc, MCX_LOG_FLOW_TABLE_SIZE, 1,
   7346 	    &sc->sc_rss_flow_table_id) != 0)
   7347 		goto down;
   7348 
   7349 	dest = MCX_FLOW_CONTEXT_DEST_TYPE_TABLE |
   7350 	    sc->sc_rss_flow_table_id;
   7351 
   7352 	/* L4 RSS flow group (v4/v6 tcp/udp, no fragments) */
   7353 	memset(&match_crit, 0, sizeof(match_crit));
   7354 	match_crit.mc_ethertype = 0xffff;
   7355 	match_crit.mc_ip_proto = 0xff;
   7356 	match_crit.mc_vlan_flags = MCX_FLOW_MATCH_IP_FRAG;
   7357 	start = 0;
   7358 	count = mcx_rss_group_entry_count(sc, MCX_FLOW_GROUP_RSS_L4);
   7359 	if (count != 0) {
   7360 		if (mcx_create_flow_group(sc, sc->sc_rss_flow_table_id,
   7361 		    MCX_FLOW_GROUP_RSS_L4, start, count,
   7362 		    MCX_CREATE_FLOW_GROUP_CRIT_OUTER, &match_crit) != 0)
   7363 			goto down;
   7364 		start += count;
   7365 	}
   7366 
   7367 	/* L3 RSS flow group (v4/v6, including fragments) */
   7368 	memset(&match_crit, 0, sizeof(match_crit));
   7369 	match_crit.mc_ethertype = 0xffff;
   7370 	count = mcx_rss_group_entry_count(sc, MCX_FLOW_GROUP_RSS_L3);
   7371 	if (mcx_create_flow_group(sc, sc->sc_rss_flow_table_id,
   7372 	    MCX_FLOW_GROUP_RSS_L3, start, count,
   7373 	    MCX_CREATE_FLOW_GROUP_CRIT_OUTER, &match_crit) != 0)
   7374 		goto down;
   7375 	start += count;
   7376 
   7377 	/* non-RSS flow group */
   7378 	count = mcx_rss_group_entry_count(sc, MCX_FLOW_GROUP_RSS_NONE);
   7379 	memset(&match_crit, 0, sizeof(match_crit));
   7380 	if (mcx_create_flow_group(sc, sc->sc_rss_flow_table_id,
   7381 	    MCX_FLOW_GROUP_RSS_NONE, start, count, 0, &match_crit) != 0)
   7382 		goto down;
   7383 
   7384 	/* Root flow table, matching packets based on mac address */
   7385 	if (mcx_create_flow_table(sc, MCX_LOG_FLOW_TABLE_SIZE, 0,
   7386 	    &sc->sc_mac_flow_table_id) != 0)
   7387 		goto down;
   7388 
   7389 	/* promisc flow group */
   7390 	start = 0;
   7391 	memset(&match_crit, 0, sizeof(match_crit));
   7392 	if (mcx_create_flow_group(sc, sc->sc_mac_flow_table_id,
   7393 	    MCX_FLOW_GROUP_PROMISC, start, 1, 0, &match_crit) != 0)
   7394 		goto down;
   7395 	sc->sc_promisc_flow_enabled = 0;
   7396 	start++;
   7397 
   7398 	/* all multicast flow group */
   7399 	match_crit.mc_dest_mac[0] = 0x01;
   7400 	if (mcx_create_flow_group(sc, sc->sc_mac_flow_table_id,
   7401 	    MCX_FLOW_GROUP_ALLMULTI, start, 1,
   7402 	    MCX_CREATE_FLOW_GROUP_CRIT_OUTER, &match_crit) != 0)
   7403 		goto down;
   7404 	sc->sc_allmulti_flow_enabled = 0;
   7405 	start++;
   7406 
   7407 	/* mac address matching flow group */
   7408 	memset(&match_crit.mc_dest_mac, 0xff, sizeof(match_crit.mc_dest_mac));
   7409 	if (mcx_create_flow_group(sc, sc->sc_mac_flow_table_id,
   7410 	    MCX_FLOW_GROUP_MAC, start, (1 << MCX_LOG_FLOW_TABLE_SIZE) - start,
   7411 	    MCX_CREATE_FLOW_GROUP_CRIT_OUTER, &match_crit) != 0)
   7412 		goto down;
   7413 
   7414 	/* flow table entries for unicast and broadcast */
   7415 	start = 0;
   7416 	if (mcx_set_flow_table_entry_mac(sc, MCX_FLOW_GROUP_MAC, start,
   7417 	    LLADDR(satosdl(ifp->if_dl->ifa_addr)), dest) != 0)
   7418 		goto down;
   7419 	start++;
   7420 
   7421 	if (mcx_set_flow_table_entry_mac(sc, MCX_FLOW_GROUP_MAC, start,
   7422 	    etherbroadcastaddr, dest) != 0)
   7423 		goto down;
   7424 	start++;
   7425 
   7426 	/* multicast entries go after that */
   7427 	sc->sc_mcast_flow_base = start;
   7428 
   7429 	/* re-add any existing multicast flows */
   7430 	for (i = 0; i < MCX_NUM_MCAST_FLOWS; i++) {
   7431 		if (sc->sc_mcast_flows[i][0] != 0) {
   7432 			mcx_set_flow_table_entry_mac(sc, MCX_FLOW_GROUP_MAC,
   7433 			    sc->sc_mcast_flow_base + i,
   7434 			    sc->sc_mcast_flows[i], dest);
   7435 		}
   7436 	}
   7437 
   7438 	if (mcx_set_flow_table_root(sc, sc->sc_mac_flow_table_id) != 0)
   7439 		goto down;
   7440 
   7441 	/*
   7442 	 * the RQT can be any size as long as it's a power of two.
   7443 	 * since we also restrict the number of queues to a power of two,
   7444 	 * we can just put each rx queue in once.
   7445 	 */
   7446 	for (i = 0; i < sc->sc_nqueues; i++)
   7447 		rqns[i] = sc->sc_queues[i].q_rx.rx_rqn;
   7448 
   7449 	if (mcx_create_rqt(sc, sc->sc_nqueues, rqns, &sc->sc_rqt) != 0)
   7450 		goto down;
   7451 
   7452 	start = 0;
   7453 	flow_index = 0;
   7454 	flow_group = -1;
   7455 	for (i = 0; i < __arraycount(mcx_rss_config); i++) {
   7456 		rss = &mcx_rss_config[i];
   7457 		if (rss->flow_group != flow_group) {
   7458 			flow_group = rss->flow_group;
   7459 			flow_index = 0;
   7460 		}
   7461 
   7462 		if (rss->hash_sel == 0) {
   7463 			if (mcx_create_tir_direct(sc, &sc->sc_queues[0].q_rx,
   7464 			    &sc->sc_tir[i]) != 0)
   7465 				goto down;
   7466 		} else {
   7467 			if (mcx_create_tir_indirect(sc, sc->sc_rqt,
   7468 			    rss->hash_sel, &sc->sc_tir[i]) != 0)
   7469 				goto down;
   7470 		}
   7471 
   7472 		if (mcx_set_flow_table_entry_proto(sc, flow_group,
   7473 		    flow_index, rss->ethertype, rss->ip_proto,
   7474 		    MCX_FLOW_CONTEXT_DEST_TYPE_TIR | sc->sc_tir[i]) != 0)
   7475 			goto down;
   7476 		flow_index++;
   7477 	}
   7478 
   7479 	for (i = 0; i < sc->sc_nqueues; i++) {
   7480 		struct mcx_queues *q = &sc->sc_queues[i];
   7481 		rx = &q->q_rx;
   7482 		tx = &q->q_tx;
   7483 
   7484 		/* start the queues */
   7485 		if (mcx_ready_sq(sc, tx) != 0)
   7486 			goto down;
   7487 
   7488 		if (mcx_ready_rq(sc, rx) != 0)
   7489 			goto down;
   7490 
   7491 		mcx_rxr_init(&rx->rx_rxr, 1, (1 << MCX_LOG_RQ_SIZE));
   7492 		rx->rx_prod = 0;
   7493 		mcx_rx_fill(sc, rx);
   7494 
   7495 		tx->tx_cons = 0;
   7496 		tx->tx_prod = 0;
   7497 	}
   7498 
   7499 	mcx_calibrate_first(sc);
   7500 
   7501 	SET(ifp->if_flags, IFF_RUNNING);
   7502 	CLR(ifp->if_flags, IFF_OACTIVE);
   7503 	if_schedule_deferred_start(ifp);
   7504 
   7505 	return 0;
   7506 down:
   7507 	mcx_stop(ifp, 0);
   7508 	return EIO;
   7509 }
   7510 
   7511 static void
   7512 mcx_stop(struct ifnet *ifp, int disable)
   7513 {
   7514 	struct mcx_softc *sc = ifp->if_softc;
   7515 	struct mcx_rss_rule *rss;
   7516 	int group, i, flow_group, flow_index;
   7517 
   7518 	CLR(ifp->if_flags, IFF_RUNNING);
   7519 
   7520 	/*
   7521 	 * delete flow table entries first, so no packets can arrive
   7522 	 * after the barriers
   7523 	 */
   7524 	if (sc->sc_promisc_flow_enabled)
   7525 		mcx_delete_flow_table_entry(sc, MCX_FLOW_GROUP_PROMISC, 0);
   7526 	if (sc->sc_allmulti_flow_enabled)
   7527 		mcx_delete_flow_table_entry(sc, MCX_FLOW_GROUP_ALLMULTI, 0);
   7528 	mcx_delete_flow_table_entry(sc, MCX_FLOW_GROUP_MAC, 0);
   7529 	mcx_delete_flow_table_entry(sc, MCX_FLOW_GROUP_MAC, 1);
   7530 	for (i = 0; i < MCX_NUM_MCAST_FLOWS; i++) {
   7531 		if (sc->sc_mcast_flows[i][0] != 0) {
   7532 			mcx_delete_flow_table_entry(sc, MCX_FLOW_GROUP_MAC,
   7533 			    sc->sc_mcast_flow_base + i);
   7534 		}
   7535 	}
   7536 
   7537 	flow_group = -1;
   7538 	flow_index = 0;
   7539 	for (i = 0; i < __arraycount(mcx_rss_config); i++) {
   7540 		rss = &mcx_rss_config[i];
   7541 		if (rss->flow_group != flow_group) {
   7542 			flow_group = rss->flow_group;
   7543 			flow_index = 0;
   7544 		}
   7545 
   7546 		mcx_delete_flow_table_entry(sc, flow_group, flow_index);
   7547 
   7548 		mcx_destroy_tir(sc, sc->sc_tir[i]);
   7549 		sc->sc_tir[i] = 0;
   7550 
   7551 		flow_index++;
   7552 	}
   7553 
   7554 	for (i = 0; i < sc->sc_nqueues; i++) {
   7555 		callout_halt(&sc->sc_queues[i].q_rx.rx_refill, NULL);
   7556 	}
   7557 
   7558 	callout_halt(&sc->sc_calibrate, NULL);
   7559 
   7560 	for (group = 0; group < MCX_NUM_FLOW_GROUPS; group++) {
   7561 		if (sc->sc_flow_group[group].g_id != -1)
   7562 			mcx_destroy_flow_group(sc, group);
   7563 	}
   7564 
   7565 	if (sc->sc_mac_flow_table_id != -1) {
   7566 		mcx_destroy_flow_table(sc, sc->sc_mac_flow_table_id);
   7567 		sc->sc_mac_flow_table_id = -1;
   7568 	}
   7569 	if (sc->sc_rss_flow_table_id != -1) {
   7570 		mcx_destroy_flow_table(sc, sc->sc_rss_flow_table_id);
   7571 		sc->sc_rss_flow_table_id = -1;
   7572 	}
   7573 	if (sc->sc_rqt != -1) {
   7574 		mcx_destroy_rqt(sc, sc->sc_rqt);
   7575 		sc->sc_rqt = -1;
   7576 	}
   7577 
   7578 	for (i = 0; i < sc->sc_nqueues; i++) {
   7579 		struct mcx_queues *q = &sc->sc_queues[i];
   7580 		struct mcx_rx *rx = &q->q_rx;
   7581 		struct mcx_tx *tx = &q->q_tx;
   7582 		struct mcx_cq *cq = &q->q_cq;
   7583 
   7584 		if (rx->rx_rqn != 0)
   7585 			mcx_destroy_rq(sc, rx);
   7586 
   7587 		if (tx->tx_sqn != 0)
   7588 			mcx_destroy_sq(sc, tx);
   7589 
   7590 		if (tx->tx_slots != NULL) {
   7591 			mcx_free_slots(sc, tx->tx_slots,
   7592 			    (1 << MCX_LOG_SQ_SIZE), (1 << MCX_LOG_SQ_SIZE));
   7593 			tx->tx_slots = NULL;
   7594 		}
   7595 		if (rx->rx_slots != NULL) {
   7596 			mcx_free_slots(sc, rx->rx_slots,
   7597 			    (1 << MCX_LOG_RQ_SIZE), (1 << MCX_LOG_RQ_SIZE));
   7598 			rx->rx_slots = NULL;
   7599 		}
   7600 
   7601 		if (cq->cq_n != 0)
   7602 			mcx_destroy_cq(sc, cq);
   7603 	}
   7604 	if (sc->sc_tis != 0) {
   7605 		mcx_destroy_tis(sc, sc->sc_tis);
   7606 		sc->sc_tis = 0;
   7607 	}
   7608 }
   7609 
   7610 static int
   7611 mcx_ioctl(struct ifnet *ifp, u_long cmd, void *data)
   7612 {
   7613 	struct mcx_softc *sc = (struct mcx_softc *)ifp->if_softc;
   7614 	struct ifreq *ifr = (struct ifreq *)data;
   7615 	struct ethercom *ec = &sc->sc_ec;
   7616 	uint8_t addrhi[ETHER_ADDR_LEN], addrlo[ETHER_ADDR_LEN];
   7617 	struct ether_multi *enm;
   7618 	struct ether_multistep step;
   7619 	int s, i, flags, error = 0;
   7620 	uint32_t dest;
   7621 
   7622 	s = splnet();
   7623 	switch (cmd) {
   7624 
   7625 	case SIOCADDMULTI:
   7626 		if (ether_addmulti(ifreq_getaddr(cmd, ifr), &sc->sc_ec) == ENETRESET) {
   7627 			error = ether_multiaddr(&ifr->ifr_addr, addrlo, addrhi);
   7628 			if (error != 0) {
   7629 				splx(s);
   7630 				return (error);
   7631 			}
   7632 
   7633 			dest = MCX_FLOW_CONTEXT_DEST_TYPE_TABLE |
   7634 			    sc->sc_rss_flow_table_id;
   7635 
   7636 			for (i = 0; i < MCX_NUM_MCAST_FLOWS; i++) {
   7637 				if (sc->sc_mcast_flows[i][0] == 0) {
   7638 					memcpy(sc->sc_mcast_flows[i], addrlo,
   7639 					    ETHER_ADDR_LEN);
   7640 					if (ISSET(ifp->if_flags, IFF_RUNNING)) {
   7641 						mcx_set_flow_table_entry_mac(sc,
   7642 						    MCX_FLOW_GROUP_MAC,
   7643 						    sc->sc_mcast_flow_base + i,
   7644 						    sc->sc_mcast_flows[i], dest);
   7645 					}
   7646 					break;
   7647 				}
   7648 			}
   7649 
   7650 			if (!ISSET(ifp->if_flags, IFF_ALLMULTI)) {
   7651 				if (i == MCX_NUM_MCAST_FLOWS) {
   7652 					SET(ifp->if_flags, IFF_ALLMULTI);
   7653 					sc->sc_extra_mcast++;
   7654 					error = ENETRESET;
   7655 				}
   7656 
   7657 				if (memcmp(addrlo, addrhi, ETHER_ADDR_LEN)) {
   7658 					SET(ifp->if_flags, IFF_ALLMULTI);
   7659 					error = ENETRESET;
   7660 				}
   7661 			}
   7662 		}
   7663 		break;
   7664 
   7665 	case SIOCDELMULTI:
   7666 		if (ether_delmulti(ifreq_getaddr(cmd, ifr), &sc->sc_ec) == ENETRESET) {
   7667 			error = ether_multiaddr(&ifr->ifr_addr, addrlo, addrhi);
   7668 			if (error != 0) {
   7669 				splx(s);
   7670 				return (error);
   7671 			}
   7672 
   7673 			for (i = 0; i < MCX_NUM_MCAST_FLOWS; i++) {
   7674 				if (memcmp(sc->sc_mcast_flows[i], addrlo,
   7675 				    ETHER_ADDR_LEN) == 0) {
   7676 					if (ISSET(ifp->if_flags, IFF_RUNNING)) {
   7677 						mcx_delete_flow_table_entry(sc,
   7678 						    MCX_FLOW_GROUP_MAC,
   7679 						    sc->sc_mcast_flow_base + i);
   7680 					}
   7681 					sc->sc_mcast_flows[i][0] = 0;
   7682 					break;
   7683 				}
   7684 			}
   7685 
   7686 			if (i == MCX_NUM_MCAST_FLOWS)
   7687 				sc->sc_extra_mcast--;
   7688 
   7689 			if (ISSET(ifp->if_flags, IFF_ALLMULTI) &&
   7690 			    sc->sc_extra_mcast == 0) {
   7691 				flags = 0;
   7692 				ETHER_LOCK(ec);
   7693 				ETHER_FIRST_MULTI(step, ec, enm);
   7694 				while (enm != NULL) {
   7695 					if (memcmp(enm->enm_addrlo,
   7696 					    enm->enm_addrhi, ETHER_ADDR_LEN)) {
   7697 						SET(flags, IFF_ALLMULTI);
   7698 						break;
   7699 					}
   7700 					ETHER_NEXT_MULTI(step, enm);
   7701 				}
   7702 				ETHER_UNLOCK(ec);
   7703 				if (!ISSET(flags, IFF_ALLMULTI)) {
   7704 					CLR(ifp->if_flags, IFF_ALLMULTI);
   7705 					error = ENETRESET;
   7706 				}
   7707 			}
   7708 		}
   7709 		break;
   7710 
   7711 	default:
   7712 		error = ether_ioctl(ifp, cmd, data);
   7713 	}
   7714 
   7715 	if (error == ENETRESET) {
   7716 		if ((ifp->if_flags & (IFF_UP | IFF_RUNNING)) ==
   7717 		    (IFF_UP | IFF_RUNNING))
   7718 			mcx_iff(sc);
   7719 		error = 0;
   7720 	}
   7721 	splx(s);
   7722 
   7723 	return (error);
   7724 }
   7725 
   7726 #if 0
   7727 static int
   7728 mcx_get_sffpage(struct ifnet *ifp, struct if_sffpage *sff)
   7729 {
   7730 	struct mcx_softc *sc = (struct mcx_softc *)ifp->if_softc;
   7731 	struct mcx_reg_mcia mcia;
   7732 	struct mcx_reg_pmlp pmlp;
   7733 	int offset, error;
   7734 
   7735 	/* get module number */
   7736 	memset(&pmlp, 0, sizeof(pmlp));
   7737 	pmlp.rp_local_port = 1;
   7738 	error = mcx_access_hca_reg(sc, MCX_REG_PMLP, MCX_REG_OP_READ, &pmlp,
   7739 	    sizeof(pmlp));
   7740 	if (error != 0) {
   7741 		printf("%s: unable to get eeprom module number\n",
   7742 		    DEVNAME(sc));
   7743 		return error;
   7744 	}
   7745 
   7746 	for (offset = 0; offset < 256; offset += MCX_MCIA_EEPROM_BYTES) {
   7747 		memset(&mcia, 0, sizeof(mcia));
   7748 		mcia.rm_l = 0;
   7749 		mcia.rm_module = be32toh(pmlp.rp_lane0_mapping) &
   7750 		    MCX_PMLP_MODULE_NUM_MASK;
   7751 		mcia.rm_i2c_addr = sff->sff_addr / 2;	/* apparently */
   7752 		mcia.rm_page_num = sff->sff_page;
   7753 		mcia.rm_dev_addr = htobe16(offset);
   7754 		mcia.rm_size = htobe16(MCX_MCIA_EEPROM_BYTES);
   7755 
   7756 		error = mcx_access_hca_reg(sc, MCX_REG_MCIA, MCX_REG_OP_READ,
   7757 		    &mcia, sizeof(mcia));
   7758 		if (error != 0) {
   7759 			printf("%s: unable to read eeprom at %x\n",
   7760 			    DEVNAME(sc), offset);
   7761 			return error;
   7762 		}
   7763 
   7764 		memcpy(sff->sff_data + offset, mcia.rm_data,
   7765 		    MCX_MCIA_EEPROM_BYTES);
   7766 	}
   7767 
   7768 	return 0;
   7769 }
   7770 #endif
   7771 
   7772 static int
   7773 mcx_load_mbuf(struct mcx_softc *sc, struct mcx_slot *ms, struct mbuf *m)
   7774 {
   7775 	switch (bus_dmamap_load_mbuf(sc->sc_dmat, ms->ms_map, m,
   7776 	    BUS_DMA_STREAMING | BUS_DMA_NOWAIT)) {
   7777 	case 0:
   7778 		break;
   7779 
   7780 	case EFBIG:
   7781 		if (m_defrag(m, M_DONTWAIT) != NULL &&
   7782 		    bus_dmamap_load_mbuf(sc->sc_dmat, ms->ms_map, m,
   7783 		    BUS_DMA_STREAMING | BUS_DMA_NOWAIT) == 0)
   7784 			break;
   7785 
   7786 		/* FALLTHROUGH */
   7787 	default:
   7788 		return (1);
   7789 	}
   7790 
   7791 	ms->ms_m = m;
   7792 	return (0);
   7793 }
   7794 
   7795 static void
   7796 mcx_send_common_locked(struct ifnet *ifp, struct mcx_tx *tx, bool is_transmit)
   7797 {
   7798 	struct mcx_softc *sc = ifp->if_softc;
   7799 	struct mcx_sq_entry *sq, *sqe;
   7800 	struct mcx_sq_entry_seg *sqs;
   7801 	struct mcx_slot *ms;
   7802 	bus_dmamap_t map;
   7803 	struct mbuf *m;
   7804 	u_int idx, free, used;
   7805 	uint64_t *bf;
   7806 	uint32_t csum;
   7807 	size_t bf_base;
   7808 	int i, seg, nseg;
   7809 
   7810 	KASSERT(mutex_owned(&tx->tx_lock));
   7811 
   7812 	if ((ifp->if_flags & IFF_RUNNING) == 0)
   7813 		return;
   7814 
   7815 	bf_base = (tx->tx_uar * MCX_PAGE_SIZE) + MCX_UAR_BF;
   7816 
   7817 	idx = tx->tx_prod % (1 << MCX_LOG_SQ_SIZE);
   7818 	free = (tx->tx_cons + (1 << MCX_LOG_SQ_SIZE)) - tx->tx_prod;
   7819 
   7820 	used = 0;
   7821 	bf = NULL;
   7822 
   7823 	bus_dmamap_sync(sc->sc_dmat, MCX_DMA_MAP(&tx->tx_sq_mem),
   7824 	    0, MCX_DMA_LEN(&tx->tx_sq_mem), BUS_DMASYNC_POSTWRITE);
   7825 
   7826 	sq = (struct mcx_sq_entry *)MCX_DMA_KVA(&tx->tx_sq_mem);
   7827 
   7828 	for (;;) {
   7829 		if (used + MCX_SQ_ENTRY_MAX_SLOTS >= free) {
   7830 			SET(ifp->if_flags, IFF_OACTIVE);
   7831 			break;
   7832 		}
   7833 
   7834 		if (is_transmit) {
   7835 			m = pcq_get(tx->tx_pcq);
   7836 		} else {
   7837 			IFQ_DEQUEUE(&ifp->if_snd, m);
   7838 		}
   7839 		if (m == NULL) {
   7840 			break;
   7841 		}
   7842 
   7843 		sqe = sq + idx;
   7844 		ms = &tx->tx_slots[idx];
   7845 		memset(sqe, 0, sizeof(*sqe));
   7846 
   7847 		/* ctrl segment */
   7848 		sqe->sqe_opcode_index = htobe32(MCX_SQE_WQE_OPCODE_SEND |
   7849 		    ((tx->tx_prod & 0xffff) << MCX_SQE_WQE_INDEX_SHIFT));
   7850 		/* always generate a completion event */
   7851 		sqe->sqe_signature = htobe32(MCX_SQE_CE_CQE_ALWAYS);
   7852 
   7853 		/* eth segment */
   7854 		csum = 0;
   7855 		if (m->m_pkthdr.csum_flags & M_CSUM_IPv4)
   7856 			csum |= MCX_SQE_L3_CSUM;
   7857 		if (m->m_pkthdr.csum_flags &
   7858 		    (M_CSUM_TCPv4 | M_CSUM_UDPv4 | M_CSUM_TCPv6 | M_CSUM_UDPv6))
   7859 			csum |= MCX_SQE_L4_CSUM;
   7860 		sqe->sqe_mss_csum = htobe32(csum);
   7861 		sqe->sqe_inline_header_size = htobe16(MCX_SQ_INLINE_SIZE);
   7862 		if (vlan_has_tag(m)) {
   7863 			struct ether_vlan_header *evh;
   7864 			evh = (struct ether_vlan_header *)
   7865 			    &sqe->sqe_inline_headers;
   7866 
   7867 			m_copydata(m, 0, ETHER_HDR_LEN, evh);
   7868 			evh->evl_proto = evh->evl_encap_proto;
   7869 			evh->evl_encap_proto = htons(ETHERTYPE_VLAN);
   7870 			evh->evl_tag = htons(vlan_get_tag(m));
   7871 			m_adj(m, ETHER_HDR_LEN);
   7872 		} else {
   7873 			m_copydata(m, 0, MCX_SQ_INLINE_SIZE,
   7874 			    sqe->sqe_inline_headers);
   7875 			m_adj(m, MCX_SQ_INLINE_SIZE);
   7876 		}
   7877 
   7878 		if (mcx_load_mbuf(sc, ms, m) != 0) {
   7879 			m_freem(m);
   7880 			if_statinc(ifp, if_oerrors);
   7881 			continue;
   7882 		}
   7883 		bf = (uint64_t *)sqe;
   7884 
   7885 		if (ifp->if_bpf != NULL)
   7886 			bpf_mtap2(ifp->if_bpf, sqe->sqe_inline_headers,
   7887 			    MCX_SQ_INLINE_SIZE, m, BPF_D_OUT);
   7888 
   7889 		map = ms->ms_map;
   7890 		bus_dmamap_sync(sc->sc_dmat, map, 0, map->dm_mapsize,
   7891 		    BUS_DMASYNC_PREWRITE);
   7892 
   7893 		sqe->sqe_ds_sq_num =
   7894 		    htobe32((tx->tx_sqn << MCX_SQE_SQ_NUM_SHIFT) |
   7895 		    (map->dm_nsegs + 3));
   7896 
   7897 		/* data segment - first wqe has one segment */
   7898 		sqs = sqe->sqe_segs;
   7899 		seg = 0;
   7900 		nseg = 1;
   7901 		for (i = 0; i < map->dm_nsegs; i++) {
   7902 			if (seg == nseg) {
   7903 				/* next slot */
   7904 				idx++;
   7905 				if (idx == (1 << MCX_LOG_SQ_SIZE))
   7906 					idx = 0;
   7907 				tx->tx_prod++;
   7908 				used++;
   7909 
   7910 				sqs = (struct mcx_sq_entry_seg *)(sq + idx);
   7911 				seg = 0;
   7912 				nseg = MCX_SQ_SEGS_PER_SLOT;
   7913 			}
   7914 			sqs[seg].sqs_byte_count =
   7915 			    htobe32(map->dm_segs[i].ds_len);
   7916 			sqs[seg].sqs_lkey = htobe32(sc->sc_lkey);
   7917 			sqs[seg].sqs_addr = htobe64(map->dm_segs[i].ds_addr);
   7918 			seg++;
   7919 		}
   7920 
   7921 		idx++;
   7922 		if (idx == (1 << MCX_LOG_SQ_SIZE))
   7923 			idx = 0;
   7924 		tx->tx_prod++;
   7925 		used++;
   7926 	}
   7927 
   7928 	bus_dmamap_sync(sc->sc_dmat, MCX_DMA_MAP(&tx->tx_sq_mem),
   7929 	    0, MCX_DMA_LEN(&tx->tx_sq_mem), BUS_DMASYNC_PREWRITE);
   7930 
   7931 	if (used) {
   7932 		bus_size_t blueflame;
   7933 
   7934 		bus_dmamap_sync(sc->sc_dmat, MCX_DMA_MAP(&sc->sc_doorbell_mem),
   7935 		    tx->tx_doorbell, sizeof(uint32_t), BUS_DMASYNC_POSTWRITE);
   7936 		be32enc(MCX_DMA_OFF(&sc->sc_doorbell_mem, tx->tx_doorbell),
   7937 		    tx->tx_prod & MCX_WQ_DOORBELL_MASK);
   7938 		bus_dmamap_sync(sc->sc_dmat, MCX_DMA_MAP(&sc->sc_doorbell_mem),
   7939 		    tx->tx_doorbell, sizeof(uint32_t), BUS_DMASYNC_PREWRITE);
   7940 
   7941 		/*
   7942 		 * write the first 64 bits of the last sqe we produced
   7943 		 * to the blue flame buffer
   7944 		 */
   7945 
   7946 		blueflame = bf_base + tx->tx_bf_offset;
   7947 		bus_space_write_8(sc->sc_memt, sc->sc_memh,
   7948 		    blueflame, *bf);
   7949 		mcx_bar(sc, blueflame, sizeof(*bf), BUS_SPACE_BARRIER_WRITE);
   7950 
   7951 		/* next write goes to the other buffer */
   7952 		tx->tx_bf_offset ^= sc->sc_bf_size;
   7953 	}
   7954 }
   7955 
   7956 static void
   7957 mcx_start(struct ifnet *ifp)
   7958 {
   7959 	struct mcx_softc *sc = ifp->if_softc;
   7960 	/* mcx_start() always uses TX ring[0] */
   7961 	struct mcx_tx *tx = &sc->sc_queues[0].q_tx;
   7962 
   7963 	mutex_enter(&tx->tx_lock);
   7964 	if (!ISSET(ifp->if_flags, IFF_OACTIVE)) {
   7965 		mcx_send_common_locked(ifp, tx, false);
   7966 	}
   7967 	mutex_exit(&tx->tx_lock);
   7968 }
   7969 
   7970 static int
   7971 mcx_transmit(struct ifnet *ifp, struct mbuf *m)
   7972 {
   7973 	struct mcx_softc *sc = ifp->if_softc;
   7974 	struct mcx_tx *tx;
   7975 
   7976 	tx = &sc->sc_queues[cpu_index(curcpu()) % sc->sc_nqueues].q_tx;
   7977 	if (__predict_false(!pcq_put(tx->tx_pcq, m))) {
   7978 		m_freem(m);
   7979 		return ENOBUFS;
   7980 	}
   7981 
   7982 	if (mutex_tryenter(&tx->tx_lock)) {
   7983 		mcx_send_common_locked(ifp, tx, true);
   7984 		mutex_exit(&tx->tx_lock);
   7985 	} else {
   7986 		softint_schedule(tx->tx_softint);
   7987 	}
   7988 
   7989 	return 0;
   7990 }
   7991 
   7992 static void
   7993 mcx_deferred_transmit(void *arg)
   7994 {
   7995 	struct mcx_tx *tx = arg;
   7996 	struct mcx_softc *sc = tx->tx_softc;
   7997 	struct ifnet *ifp = &sc->sc_ec.ec_if;
   7998 
   7999 	mutex_enter(&tx->tx_lock);
   8000 	if (pcq_peek(tx->tx_pcq) != NULL) {
   8001 		mcx_send_common_locked(ifp, tx, true);
   8002 	}
   8003 	mutex_exit(&tx->tx_lock);
   8004 }
   8005 
   8006 
   8007 static void
   8008 mcx_media_add_types(struct mcx_softc *sc)
   8009 {
   8010 	struct mcx_reg_ptys ptys;
   8011 	int i;
   8012 	uint32_t proto_cap;
   8013 
   8014 	memset(&ptys, 0, sizeof(ptys));
   8015 	ptys.rp_local_port = 1;
   8016 	ptys.rp_proto_mask = MCX_REG_PTYS_PROTO_MASK_ETH;
   8017 	if (mcx_access_hca_reg(sc, MCX_REG_PTYS, MCX_REG_OP_READ, &ptys,
   8018 	    sizeof(ptys)) != 0) {
   8019 		printf("%s: unable to read port type/speed\n", DEVNAME(sc));
   8020 		return;
   8021 	}
   8022 
   8023 	proto_cap = be32toh(ptys.rp_eth_proto_cap);
   8024 	for (i = 0; i < __arraycount(mcx_eth_cap_map); i++) {
   8025 		const struct mcx_eth_proto_capability *cap;
   8026 		if (!ISSET(proto_cap, 1U << i))
   8027 			continue;
   8028 
   8029 		cap = &mcx_eth_cap_map[i];
   8030 		if (cap->cap_media == 0)
   8031 			continue;
   8032 
   8033 		ifmedia_add(&sc->sc_media, IFM_ETHER | cap->cap_media, 0, NULL);
   8034 	}
   8035 }
   8036 
   8037 static void
   8038 mcx_media_status(struct ifnet *ifp, struct ifmediareq *ifmr)
   8039 {
   8040 	struct mcx_softc *sc = (struct mcx_softc *)ifp->if_softc;
   8041 	struct mcx_reg_ptys ptys;
   8042 	int i;
   8043 	uint32_t proto_oper;
   8044 	uint64_t media_oper;
   8045 
   8046 	memset(&ptys, 0, sizeof(ptys));
   8047 	ptys.rp_local_port = 1;
   8048 	ptys.rp_proto_mask = MCX_REG_PTYS_PROTO_MASK_ETH;
   8049 
   8050 	if (mcx_access_hca_reg(sc, MCX_REG_PTYS, MCX_REG_OP_READ, &ptys,
   8051 	    sizeof(ptys)) != 0) {
   8052 		printf("%s: unable to read port type/speed\n", DEVNAME(sc));
   8053 		return;
   8054 	}
   8055 
   8056 	proto_oper = be32toh(ptys.rp_eth_proto_oper);
   8057 
   8058 	media_oper = 0;
   8059 
   8060 	for (i = 0; i < __arraycount(mcx_eth_cap_map); i++) {
   8061 		const struct mcx_eth_proto_capability *cap;
   8062 		if (!ISSET(proto_oper, 1U << i))
   8063 			continue;
   8064 
   8065 		cap = &mcx_eth_cap_map[i];
   8066 
   8067 		if (cap->cap_media != 0)
   8068 			media_oper = cap->cap_media;
   8069 	}
   8070 
   8071 	ifmr->ifm_status = IFM_AVALID;
   8072 	if (proto_oper != 0) {
   8073 		ifmr->ifm_status |= IFM_ACTIVE;
   8074 		ifmr->ifm_active = IFM_ETHER | IFM_FDX | IFM_AUTO | media_oper;
   8075 		/* txpause, rxpause, duplex? */
   8076 	}
   8077 }
   8078 
   8079 static int
   8080 mcx_media_change(struct ifnet *ifp)
   8081 {
   8082 	struct mcx_softc *sc = (struct mcx_softc *)ifp->if_softc;
   8083 	struct mcx_reg_ptys ptys;
   8084 	struct mcx_reg_paos paos;
   8085 	uint32_t media;
   8086 	int i, error;
   8087 
   8088 	if (IFM_TYPE(sc->sc_media.ifm_media) != IFM_ETHER)
   8089 		return EINVAL;
   8090 
   8091 	error = 0;
   8092 
   8093 	if (IFM_SUBTYPE(sc->sc_media.ifm_media) == IFM_AUTO) {
   8094 		/* read ptys to get supported media */
   8095 		memset(&ptys, 0, sizeof(ptys));
   8096 		ptys.rp_local_port = 1;
   8097 		ptys.rp_proto_mask = MCX_REG_PTYS_PROTO_MASK_ETH;
   8098 		if (mcx_access_hca_reg(sc, MCX_REG_PTYS, MCX_REG_OP_READ,
   8099 		    &ptys, sizeof(ptys)) != 0) {
   8100 			printf("%s: unable to read port type/speed\n",
   8101 			    DEVNAME(sc));
   8102 			return EIO;
   8103 		}
   8104 
   8105 		media = be32toh(ptys.rp_eth_proto_cap);
   8106 	} else {
   8107 		/* map media type */
   8108 		media = 0;
   8109 		for (i = 0; i < __arraycount(mcx_eth_cap_map); i++) {
   8110 			const struct mcx_eth_proto_capability *cap;
   8111 
   8112 			cap = &mcx_eth_cap_map[i];
   8113 			if (cap->cap_media ==
   8114 			    IFM_SUBTYPE(sc->sc_media.ifm_media)) {
   8115 				media = (1 << i);
   8116 				break;
   8117 			}
   8118 		}
   8119 	}
   8120 
   8121 	/* disable the port */
   8122 	memset(&paos, 0, sizeof(paos));
   8123 	paos.rp_local_port = 1;
   8124 	paos.rp_admin_status = MCX_REG_PAOS_ADMIN_STATUS_DOWN;
   8125 	paos.rp_admin_state_update = MCX_REG_PAOS_ADMIN_STATE_UPDATE_EN;
   8126 	if (mcx_access_hca_reg(sc, MCX_REG_PAOS, MCX_REG_OP_WRITE, &paos,
   8127 	    sizeof(paos)) != 0) {
   8128 		printf("%s: unable to set port state to down\n", DEVNAME(sc));
   8129 		return EIO;
   8130 	}
   8131 
   8132 	memset(&ptys, 0, sizeof(ptys));
   8133 	ptys.rp_local_port = 1;
   8134 	ptys.rp_proto_mask = MCX_REG_PTYS_PROTO_MASK_ETH;
   8135 	ptys.rp_eth_proto_admin = htobe32(media);
   8136 	if (mcx_access_hca_reg(sc, MCX_REG_PTYS, MCX_REG_OP_WRITE, &ptys,
   8137 	    sizeof(ptys)) != 0) {
   8138 		printf("%s: unable to set port media type/speed\n",
   8139 		    DEVNAME(sc));
   8140 		error = EIO;
   8141 	}
   8142 
   8143 	/* re-enable the port to start negotiation */
   8144 	memset(&paos, 0, sizeof(paos));
   8145 	paos.rp_local_port = 1;
   8146 	paos.rp_admin_status = MCX_REG_PAOS_ADMIN_STATUS_UP;
   8147 	paos.rp_admin_state_update = MCX_REG_PAOS_ADMIN_STATE_UPDATE_EN;
   8148 	if (mcx_access_hca_reg(sc, MCX_REG_PAOS, MCX_REG_OP_WRITE, &paos,
   8149 	    sizeof(paos)) != 0) {
   8150 		printf("%s: unable to set port state to up\n", DEVNAME(sc));
   8151 		error = EIO;
   8152 	}
   8153 
   8154 	return error;
   8155 }
   8156 
   8157 static void
   8158 mcx_port_change(struct work *wk, void *xsc)
   8159 {
   8160 	struct mcx_softc *sc = xsc;
   8161 	struct ifnet *ifp = &sc->sc_ec.ec_if;
   8162 	struct mcx_reg_ptys ptys = {
   8163 		.rp_local_port = 1,
   8164 		.rp_proto_mask = MCX_REG_PTYS_PROTO_MASK_ETH,
   8165 	};
   8166 	int link_state = LINK_STATE_DOWN;
   8167 
   8168 	if (mcx_access_hca_reg(sc, MCX_REG_PTYS, MCX_REG_OP_READ, &ptys,
   8169 	    sizeof(ptys)) == 0) {
   8170 		uint32_t proto_oper = be32toh(ptys.rp_eth_proto_oper);
   8171 		uint64_t baudrate = 0;
   8172 		unsigned int i;
   8173 
   8174 		if (proto_oper != 0)
   8175 			link_state = LINK_STATE_UP;
   8176 
   8177 		for (i = 0; i < __arraycount(mcx_eth_cap_map); i++) {
   8178 			const struct mcx_eth_proto_capability *cap;
   8179 			if (!ISSET(proto_oper, 1U << i))
   8180 				continue;
   8181 
   8182 			cap = &mcx_eth_cap_map[i];
   8183 			if (cap->cap_baudrate == 0)
   8184 				continue;
   8185 
   8186 			baudrate = cap->cap_baudrate;
   8187 			break;
   8188 		}
   8189 
   8190 		ifp->if_baudrate = baudrate;
   8191 	}
   8192 
   8193 	if (link_state != ifp->if_link_state) {
   8194 		if_link_state_change(ifp, link_state);
   8195 	}
   8196 }
   8197 
   8198 
   8199 static inline uint32_t
   8200 mcx_rd(struct mcx_softc *sc, bus_size_t r)
   8201 {
   8202 	uint32_t word;
   8203 
   8204 	word = bus_space_read_4(sc->sc_memt, sc->sc_memh, r);
   8205 
   8206 	return (be32toh(word));
   8207 }
   8208 
   8209 static inline void
   8210 mcx_wr(struct mcx_softc *sc, bus_size_t r, uint32_t v)
   8211 {
   8212 	bus_space_write_4(sc->sc_memt, sc->sc_memh, r, htobe32(v));
   8213 }
   8214 
   8215 static inline void
   8216 mcx_bar(struct mcx_softc *sc, bus_size_t r, bus_size_t l, int f)
   8217 {
   8218 #ifndef __NetBSD__
   8219 	bus_space_barrier(sc->sc_memt, sc->sc_memh, r, l, f);
   8220 #endif
   8221 }
   8222 
   8223 static uint64_t
   8224 mcx_timer(struct mcx_softc *sc)
   8225 {
   8226 	uint32_t hi, lo, ni;
   8227 
   8228 	hi = mcx_rd(sc, MCX_INTERNAL_TIMER_H);
   8229 	for (;;) {
   8230 		lo = mcx_rd(sc, MCX_INTERNAL_TIMER_L);
   8231 		mcx_bar(sc, MCX_INTERNAL_TIMER_L, 8, BUS_SPACE_BARRIER_READ);
   8232 		ni = mcx_rd(sc, MCX_INTERNAL_TIMER_H);
   8233 
   8234 		if (ni == hi)
   8235 			break;
   8236 
   8237 		hi = ni;
   8238 	}
   8239 
   8240 	return (((uint64_t)hi << 32) | (uint64_t)lo);
   8241 }
   8242 
   8243 static int
   8244 mcx_dmamem_alloc(struct mcx_softc *sc, struct mcx_dmamem *mxm,
   8245     bus_size_t size, u_int align)
   8246 {
   8247 	mxm->mxm_size = size;
   8248 
   8249 	if (bus_dmamap_create(sc->sc_dmat, mxm->mxm_size, 1,
   8250 	    mxm->mxm_size, 0,
   8251 	    BUS_DMA_WAITOK | BUS_DMA_ALLOCNOW,
   8252 	    &mxm->mxm_map) != 0)
   8253 		return (1);
   8254 	if (bus_dmamem_alloc(sc->sc_dmat, mxm->mxm_size,
   8255 	    align, 0, &mxm->mxm_seg, 1, &mxm->mxm_nsegs,
   8256 	    BUS_DMA_WAITOK) != 0)
   8257 		goto destroy;
   8258 	if (bus_dmamem_map(sc->sc_dmat, &mxm->mxm_seg, mxm->mxm_nsegs,
   8259 	    mxm->mxm_size, &mxm->mxm_kva,
   8260 	    BUS_DMA_WAITOK | BUS_DMA_COHERENT) != 0)
   8261 		goto free;
   8262 	if (bus_dmamap_load(sc->sc_dmat, mxm->mxm_map, mxm->mxm_kva,
   8263 	    mxm->mxm_size, NULL, BUS_DMA_WAITOK) != 0)
   8264 		goto unmap;
   8265 
   8266 	mcx_dmamem_zero(mxm);
   8267 
   8268 	return (0);
   8269 unmap:
   8270 	bus_dmamem_unmap(sc->sc_dmat, mxm->mxm_kva, mxm->mxm_size);
   8271 free:
   8272 	bus_dmamem_free(sc->sc_dmat, &mxm->mxm_seg, 1);
   8273 destroy:
   8274 	bus_dmamap_destroy(sc->sc_dmat, mxm->mxm_map);
   8275 	return (1);
   8276 }
   8277 
   8278 static void
   8279 mcx_dmamem_zero(struct mcx_dmamem *mxm)
   8280 {
   8281 	memset(MCX_DMA_KVA(mxm), 0, MCX_DMA_LEN(mxm));
   8282 }
   8283 
   8284 static void
   8285 mcx_dmamem_free(struct mcx_softc *sc, struct mcx_dmamem *mxm)
   8286 {
   8287 	bus_dmamap_unload(sc->sc_dmat, mxm->mxm_map);
   8288 	bus_dmamem_unmap(sc->sc_dmat, mxm->mxm_kva, mxm->mxm_size);
   8289 	bus_dmamem_free(sc->sc_dmat, &mxm->mxm_seg, 1);
   8290 	bus_dmamap_destroy(sc->sc_dmat, mxm->mxm_map);
   8291 }
   8292 
   8293 static int
   8294 mcx_hwmem_alloc(struct mcx_softc *sc, struct mcx_hwmem *mhm, unsigned int pages)
   8295 {
   8296 	bus_dma_segment_t *segs;
   8297 	bus_size_t len = pages * MCX_PAGE_SIZE;
   8298 	size_t seglen;
   8299 
   8300 	segs = kmem_alloc(sizeof(*segs) * pages, KM_SLEEP);
   8301 	seglen = sizeof(*segs) * pages;
   8302 
   8303 	if (bus_dmamem_alloc(sc->sc_dmat, len, MCX_PAGE_SIZE, 0,
   8304 	    segs, pages, &mhm->mhm_seg_count, BUS_DMA_NOWAIT) != 0)
   8305 		goto free_segs;
   8306 
   8307 	if (mhm->mhm_seg_count < pages) {
   8308 		size_t nseglen;
   8309 
   8310 		mhm->mhm_segs = kmem_alloc(
   8311 		    sizeof(*mhm->mhm_segs) * mhm->mhm_seg_count, KM_SLEEP);
   8312 
   8313 		nseglen = sizeof(*mhm->mhm_segs) * mhm->mhm_seg_count;
   8314 
   8315 		memcpy(mhm->mhm_segs, segs, nseglen);
   8316 
   8317 		kmem_free(segs, seglen);
   8318 
   8319 		segs = mhm->mhm_segs;
   8320 		seglen = nseglen;
   8321 	} else
   8322 		mhm->mhm_segs = segs;
   8323 
   8324 	if (bus_dmamap_create(sc->sc_dmat, len, pages, MCX_PAGE_SIZE,
   8325 	    MCX_PAGE_SIZE, BUS_DMA_NOWAIT|BUS_DMA_ALLOCNOW /*|BUS_DMA_64BIT*/,
   8326 	    &mhm->mhm_map) != 0)
   8327 		goto free_dmamem;
   8328 
   8329 	if (bus_dmamap_load_raw(sc->sc_dmat, mhm->mhm_map,
   8330 	    mhm->mhm_segs, mhm->mhm_seg_count, len, BUS_DMA_NOWAIT) != 0)
   8331 		goto destroy;
   8332 
   8333 	bus_dmamap_sync(sc->sc_dmat, mhm->mhm_map,
   8334 	    0, mhm->mhm_map->dm_mapsize, BUS_DMASYNC_PRERW);
   8335 
   8336 	mhm->mhm_npages = pages;
   8337 
   8338 	return (0);
   8339 
   8340 destroy:
   8341 	bus_dmamap_destroy(sc->sc_dmat, mhm->mhm_map);
   8342 free_dmamem:
   8343 	bus_dmamem_free(sc->sc_dmat, mhm->mhm_segs, mhm->mhm_seg_count);
   8344 free_segs:
   8345 	kmem_free(segs, seglen);
   8346 	mhm->mhm_segs = NULL;
   8347 
   8348 	return (-1);
   8349 }
   8350 
   8351 static void
   8352 mcx_hwmem_free(struct mcx_softc *sc, struct mcx_hwmem *mhm)
   8353 {
   8354 	if (mhm->mhm_npages == 0)
   8355 		return;
   8356 
   8357 	bus_dmamap_sync(sc->sc_dmat, mhm->mhm_map,
   8358 	    0, mhm->mhm_map->dm_mapsize, BUS_DMASYNC_POSTRW);
   8359 
   8360 	bus_dmamap_unload(sc->sc_dmat, mhm->mhm_map);
   8361 	bus_dmamap_destroy(sc->sc_dmat, mhm->mhm_map);
   8362 	bus_dmamem_free(sc->sc_dmat, mhm->mhm_segs, mhm->mhm_seg_count);
   8363 	kmem_free(mhm->mhm_segs, sizeof(*mhm->mhm_segs) * mhm->mhm_seg_count);
   8364 
   8365 	mhm->mhm_npages = 0;
   8366 }
   8367 
   8368 #if NKSTAT > 0
   8369 struct mcx_ppcnt {
   8370 	char			 name[KSTAT_KV_NAMELEN];
   8371 	enum kstat_kv_unit	 unit;
   8372 };
   8373 
   8374 static const struct mcx_ppcnt mcx_ppcnt_ieee8023_tpl[] = {
   8375 	{ "Good Tx",		KSTAT_KV_U_PACKETS, },
   8376 	{ "Good Rx",		KSTAT_KV_U_PACKETS, },
   8377 	{ "FCS errs",		KSTAT_KV_U_PACKETS, },
   8378 	{ "Alignment Errs",	KSTAT_KV_U_PACKETS, },
   8379 	{ "Good Tx",		KSTAT_KV_U_BYTES, },
   8380 	{ "Good Rx",		KSTAT_KV_U_BYTES, },
   8381 	{ "Multicast Tx",	KSTAT_KV_U_PACKETS, },
   8382 	{ "Broadcast Tx",	KSTAT_KV_U_PACKETS, },
   8383 	{ "Multicast Rx",	KSTAT_KV_U_PACKETS, },
   8384 	{ "Broadcast Rx",	KSTAT_KV_U_PACKETS, },
   8385 	{ "In Range Len",	KSTAT_KV_U_PACKETS, },
   8386 	{ "Out Of Range Len",	KSTAT_KV_U_PACKETS, },
   8387 	{ "Frame Too Long",	KSTAT_KV_U_PACKETS, },
   8388 	{ "Symbol Errs",	KSTAT_KV_U_PACKETS, },
   8389 	{ "MAC Ctrl Tx",	KSTAT_KV_U_PACKETS, },
   8390 	{ "MAC Ctrl Rx",	KSTAT_KV_U_PACKETS, },
   8391 	{ "MAC Ctrl Unsup",	KSTAT_KV_U_PACKETS, },
   8392 	{ "Pause Rx",		KSTAT_KV_U_PACKETS, },
   8393 	{ "Pause Tx",		KSTAT_KV_U_PACKETS, },
   8394 };
   8395 CTASSERT(__arraycount(mcx_ppcnt_ieee8023_tpl) == mcx_ppcnt_ieee8023_count);
   8396 
   8397 static const struct mcx_ppcnt mcx_ppcnt_rfc2863_tpl[] = {
   8398 	{ "Rx Bytes",		KSTAT_KV_U_BYTES, },
   8399 	{ "Rx Unicast",		KSTAT_KV_U_PACKETS, },
   8400 	{ "Rx Discards",	KSTAT_KV_U_PACKETS, },
   8401 	{ "Rx Errors",		KSTAT_KV_U_PACKETS, },
   8402 	{ "Rx Unknown Proto",	KSTAT_KV_U_PACKETS, },
   8403 	{ "Tx Bytes",		KSTAT_KV_U_BYTES, },
   8404 	{ "Tx Unicast",		KSTAT_KV_U_PACKETS, },
   8405 	{ "Tx Discards",	KSTAT_KV_U_PACKETS, },
   8406 	{ "Tx Errors",		KSTAT_KV_U_PACKETS, },
   8407 	{ "Rx Multicast",	KSTAT_KV_U_PACKETS, },
   8408 	{ "Rx Broadcast",	KSTAT_KV_U_PACKETS, },
   8409 	{ "Tx Multicast",	KSTAT_KV_U_PACKETS, },
   8410 	{ "Tx Broadcast",	KSTAT_KV_U_PACKETS, },
   8411 };
   8412 CTASSERT(__arraycount(mcx_ppcnt_rfc2863_tpl) == mcx_ppcnt_rfc2863_count);
   8413 
   8414 static const struct mcx_ppcnt mcx_ppcnt_rfc2819_tpl[] = {
   8415 	{ "Drop Events",	KSTAT_KV_U_PACKETS, },
   8416 	{ "Octets",		KSTAT_KV_U_BYTES, },
   8417 	{ "Packets",		KSTAT_KV_U_PACKETS, },
   8418 	{ "Broadcasts",		KSTAT_KV_U_PACKETS, },
   8419 	{ "Multicasts",		KSTAT_KV_U_PACKETS, },
   8420 	{ "CRC Align Errs",	KSTAT_KV_U_PACKETS, },
   8421 	{ "Undersize",		KSTAT_KV_U_PACKETS, },
   8422 	{ "Oversize",		KSTAT_KV_U_PACKETS, },
   8423 	{ "Fragments",		KSTAT_KV_U_PACKETS, },
   8424 	{ "Jabbers",		KSTAT_KV_U_PACKETS, },
   8425 	{ "Collisions",		KSTAT_KV_U_NONE, },
   8426 	{ "64B",		KSTAT_KV_U_PACKETS, },
   8427 	{ "65-127B",		KSTAT_KV_U_PACKETS, },
   8428 	{ "128-255B",		KSTAT_KV_U_PACKETS, },
   8429 	{ "256-511B",		KSTAT_KV_U_PACKETS, },
   8430 	{ "512-1023B",		KSTAT_KV_U_PACKETS, },
   8431 	{ "1024-1518B",		KSTAT_KV_U_PACKETS, },
   8432 	{ "1519-2047B",		KSTAT_KV_U_PACKETS, },
   8433 	{ "2048-4095B",		KSTAT_KV_U_PACKETS, },
   8434 	{ "4096-8191B",		KSTAT_KV_U_PACKETS, },
   8435 	{ "8192-10239B",	KSTAT_KV_U_PACKETS, },
   8436 };
   8437 CTASSERT(__arraycount(mcx_ppcnt_rfc2819_tpl) == mcx_ppcnt_rfc2819_count);
   8438 
   8439 static const struct mcx_ppcnt mcx_ppcnt_rfc3635_tpl[] = {
   8440 	{ "Alignment Errs",	KSTAT_KV_U_PACKETS, },
   8441 	{ "FCS Errs",		KSTAT_KV_U_PACKETS, },
   8442 	{ "Single Colls",	KSTAT_KV_U_PACKETS, },
   8443 	{ "Multiple Colls",	KSTAT_KV_U_PACKETS, },
   8444 	{ "SQE Test Errs",	KSTAT_KV_U_NONE, },
   8445 	{ "Deferred Tx",	KSTAT_KV_U_PACKETS, },
   8446 	{ "Late Colls",		KSTAT_KV_U_NONE, },
   8447 	{ "Exess Colls",	KSTAT_KV_U_NONE, },
   8448 	{ "Int MAC Tx Errs",	KSTAT_KV_U_PACKETS, },
   8449 	{ "CSM Sense Errs",	KSTAT_KV_U_NONE, },
   8450 	{ "Too Long",		KSTAT_KV_U_PACKETS, },
   8451 	{ "Int MAC Rx Errs",	KSTAT_KV_U_PACKETS, },
   8452 	{ "Symbol Errs",	KSTAT_KV_U_NONE, },
   8453 	{ "Unknown Control",	KSTAT_KV_U_PACKETS, },
   8454 	{ "Pause Rx",		KSTAT_KV_U_PACKETS, },
   8455 	{ "Pause Tx",		KSTAT_KV_U_PACKETS, },
   8456 };
   8457 CTASSERT(__arraycount(mcx_ppcnt_rfc3635_tpl) == mcx_ppcnt_rfc3635_count);
   8458 
   8459 struct mcx_kstat_ppcnt {
   8460 	const char		*ksp_name;
   8461 	const struct mcx_ppcnt	*ksp_tpl;
   8462 	unsigned int		 ksp_n;
   8463 	uint8_t			 ksp_grp;
   8464 };
   8465 
   8466 static const struct mcx_kstat_ppcnt mcx_kstat_ppcnt_ieee8023 = {
   8467 	.ksp_name =		"ieee802.3",
   8468 	.ksp_tpl =		mcx_ppcnt_ieee8023_tpl,
   8469 	.ksp_n =		__arraycount(mcx_ppcnt_ieee8023_tpl),
   8470 	.ksp_grp =		MCX_REG_PPCNT_GRP_IEEE8023,
   8471 };
   8472 
   8473 static const struct mcx_kstat_ppcnt mcx_kstat_ppcnt_rfc2863 = {
   8474 	.ksp_name =		"rfc2863",
   8475 	.ksp_tpl =		mcx_ppcnt_rfc2863_tpl,
   8476 	.ksp_n =		__arraycount(mcx_ppcnt_rfc2863_tpl),
   8477 	.ksp_grp =		MCX_REG_PPCNT_GRP_RFC2863,
   8478 };
   8479 
   8480 static const struct mcx_kstat_ppcnt mcx_kstat_ppcnt_rfc2819 = {
   8481 	.ksp_name =		"rfc2819",
   8482 	.ksp_tpl =		mcx_ppcnt_rfc2819_tpl,
   8483 	.ksp_n =		__arraycount(mcx_ppcnt_rfc2819_tpl),
   8484 	.ksp_grp =		MCX_REG_PPCNT_GRP_RFC2819,
   8485 };
   8486 
   8487 static const struct mcx_kstat_ppcnt mcx_kstat_ppcnt_rfc3635 = {
   8488 	.ksp_name =		"rfc3635",
   8489 	.ksp_tpl =		mcx_ppcnt_rfc3635_tpl,
   8490 	.ksp_n =		__arraycount(mcx_ppcnt_rfc3635_tpl),
   8491 	.ksp_grp =		MCX_REG_PPCNT_GRP_RFC3635,
   8492 };
   8493 
   8494 static int	mcx_kstat_ppcnt_read(struct kstat *);
   8495 
   8496 static void	mcx_kstat_attach_tmps(struct mcx_softc *sc);
   8497 static void	mcx_kstat_attach_queues(struct mcx_softc *sc);
   8498 
   8499 static struct kstat *
   8500 mcx_kstat_attach_ppcnt(struct mcx_softc *sc,
   8501     const struct mcx_kstat_ppcnt *ksp)
   8502 {
   8503 	struct kstat *ks;
   8504 	struct kstat_kv *kvs;
   8505 	unsigned int i;
   8506 
   8507 	ks = kstat_create(DEVNAME(sc), 0, ksp->ksp_name, 0, KSTAT_T_KV, 0);
   8508 	if (ks == NULL)
   8509 		return (NULL);
   8510 
   8511 	kvs = mallocarray(ksp->ksp_n, sizeof(*kvs),
   8512 	    M_DEVBUF, M_WAITOK);
   8513 
   8514 	for (i = 0; i < ksp->ksp_n; i++) {
   8515 		const struct mcx_ppcnt *tpl = &ksp->ksp_tpl[i];
   8516 
   8517 		kstat_kv_unit_init(&kvs[i], tpl->name,
   8518 		    KSTAT_KV_T_COUNTER64, tpl->unit);
   8519 	}
   8520 
   8521 	ks->ks_softc = sc;
   8522 	ks->ks_ptr = (void *)ksp;
   8523 	ks->ks_data = kvs;
   8524 	ks->ks_datalen = ksp->ksp_n * sizeof(*kvs);
   8525 	ks->ks_read = mcx_kstat_ppcnt_read;
   8526 
   8527 	kstat_install(ks);
   8528 
   8529 	return (ks);
   8530 }
   8531 
   8532 static void
   8533 mcx_kstat_attach(struct mcx_softc *sc)
   8534 {
   8535 	sc->sc_kstat_ieee8023 = mcx_kstat_attach_ppcnt(sc,
   8536 	    &mcx_kstat_ppcnt_ieee8023);
   8537 	sc->sc_kstat_rfc2863 = mcx_kstat_attach_ppcnt(sc,
   8538 	    &mcx_kstat_ppcnt_rfc2863);
   8539 	sc->sc_kstat_rfc2819 = mcx_kstat_attach_ppcnt(sc,
   8540 	    &mcx_kstat_ppcnt_rfc2819);
   8541 	sc->sc_kstat_rfc3635 = mcx_kstat_attach_ppcnt(sc,
   8542 	    &mcx_kstat_ppcnt_rfc3635);
   8543 
   8544 	mcx_kstat_attach_tmps(sc);
   8545 	mcx_kstat_attach_queues(sc);
   8546 }
   8547 
   8548 static int
   8549 mcx_kstat_ppcnt_read(struct kstat *ks)
   8550 {
   8551 	struct mcx_softc *sc = ks->ks_softc;
   8552 	struct mcx_kstat_ppcnt *ksp = ks->ks_ptr;
   8553 	struct mcx_reg_ppcnt ppcnt = {
   8554 		.ppcnt_grp = ksp->ksp_grp,
   8555 		.ppcnt_local_port = 1,
   8556 	};
   8557 	struct kstat_kv *kvs = ks->ks_data;
   8558 	uint64_t *vs = (uint64_t *)&ppcnt.ppcnt_counter_set;
   8559 	unsigned int i;
   8560 	int rv;
   8561 
   8562 	KERNEL_LOCK(); /* XXX */
   8563 	rv = mcx_access_hca_reg(sc, MCX_REG_PPCNT, MCX_REG_OP_READ,
   8564 	    &ppcnt, sizeof(ppcnt));
   8565 	KERNEL_UNLOCK();
   8566 	if (rv != 0)
   8567 		return (EIO);
   8568 
   8569 	nanouptime(&ks->ks_updated);
   8570 
   8571 	for (i = 0; i < ksp->ksp_n; i++)
   8572 		kstat_kv_u64(&kvs[i]) = bemtoh64(&vs[i]);
   8573 
   8574 	return (0);
   8575 }
   8576 
   8577 struct mcx_kstat_mtmp {
   8578 	struct kstat_kv		ktmp_name;
   8579 	struct kstat_kv		ktmp_temperature;
   8580 	struct kstat_kv		ktmp_threshold_lo;
   8581 	struct kstat_kv		ktmp_threshold_hi;
   8582 };
   8583 
   8584 static const struct mcx_kstat_mtmp mcx_kstat_mtmp_tpl = {
   8585 	KSTAT_KV_INITIALIZER("name",		KSTAT_KV_T_ISTR),
   8586 	KSTAT_KV_INITIALIZER("temperature",	KSTAT_KV_T_TEMP),
   8587 	KSTAT_KV_INITIALIZER("lo threshold",	KSTAT_KV_T_TEMP),
   8588 	KSTAT_KV_INITIALIZER("hi threshold",	KSTAT_KV_T_TEMP),
   8589 };
   8590 
   8591 static const struct timeval mcx_kstat_mtmp_rate = { 1, 0 };
   8592 
   8593 static int mcx_kstat_mtmp_read(struct kstat *);
   8594 
   8595 static void
   8596 mcx_kstat_attach_tmps(struct mcx_softc *sc)
   8597 {
   8598 	struct kstat *ks;
   8599 	struct mcx_reg_mcam mcam;
   8600 	struct mcx_reg_mtcap mtcap;
   8601 	struct mcx_kstat_mtmp *ktmp;
   8602 	uint64_t map;
   8603 	unsigned int i, n;
   8604 
   8605 	memset(&mtcap, 0, sizeof(mtcap));
   8606 	memset(&mcam, 0, sizeof(mcam));
   8607 
   8608 	if (sc->sc_mcam_reg == 0) {
   8609 		/* no management capabilities */
   8610 		return;
   8611 	}
   8612 
   8613 	if (mcx_access_hca_reg(sc, MCX_REG_MCAM, MCX_REG_OP_READ,
   8614 	    &mcam, sizeof(mcam)) != 0) {
   8615 		/* unable to check management capabilities? */
   8616 		return;
   8617 	}
   8618 
   8619 	if (MCX_BITFIELD_BIT(mcam.mcam_feature_cap_mask,
   8620 	    MCX_MCAM_FEATURE_CAP_SENSOR_MAP) == 0) {
   8621 		/* no sensor map */
   8622 		return;
   8623 	}
   8624 
   8625 	if (mcx_access_hca_reg(sc, MCX_REG_MTCAP, MCX_REG_OP_READ,
   8626 	    &mtcap, sizeof(mtcap)) != 0) {
   8627 		/* unable to find temperature sensors */
   8628 		return;
   8629 	}
   8630 
   8631 	sc->sc_kstat_mtmp_count = mtcap.mtcap_sensor_count;
   8632 	sc->sc_kstat_mtmp = mallocarray(sc->sc_kstat_mtmp_count,
   8633 	    sizeof(*sc->sc_kstat_mtmp), M_DEVBUF, M_WAITOK);
   8634 
   8635 	n = 0;
   8636 	map = bemtoh64(&mtcap.mtcap_sensor_map);
   8637 	for (i = 0; i < sizeof(map) * NBBY; i++) {
   8638 		if (!ISSET(map, (1ULL << i)))
   8639 			continue;
   8640 
   8641 		ks = kstat_create(DEVNAME(sc), 0, "temperature", i,
   8642 		    KSTAT_T_KV, 0);
   8643 		if (ks == NULL) {
   8644 			/* unable to attach temperature sensor %u, i */
   8645 			continue;
   8646 		}
   8647 
   8648 		ktmp = malloc(sizeof(*ktmp), M_DEVBUF, M_WAITOK|M_ZERO);
   8649 		*ktmp = mcx_kstat_mtmp_tpl;
   8650 
   8651 		ks->ks_data = ktmp;
   8652 		ks->ks_datalen = sizeof(*ktmp);
   8653 		TIMEVAL_TO_TIMESPEC(&mcx_kstat_mtmp_rate, &ks->ks_interval);
   8654 		ks->ks_read = mcx_kstat_mtmp_read;
   8655 
   8656 		ks->ks_softc = sc;
   8657 		kstat_install(ks);
   8658 
   8659 		sc->sc_kstat_mtmp[n++] = ks;
   8660 		if (n >= sc->sc_kstat_mtmp_count)
   8661 			break;
   8662 	}
   8663 }
   8664 
   8665 static uint64_t
   8666 mcx_tmp_to_uK(uint16_t *t)
   8667 {
   8668 	int64_t mt = (int16_t)bemtoh16(t); /* 0.125 C units */
   8669 	mt *= 1000000 / 8; /* convert to uC */
   8670 	mt += 273150000; /* convert to uK */
   8671 
   8672 	return (mt);
   8673 }
   8674 
   8675 static int
   8676 mcx_kstat_mtmp_read(struct kstat *ks)
   8677 {
   8678 	struct mcx_softc *sc = ks->ks_softc;
   8679 	struct mcx_kstat_mtmp *ktmp = ks->ks_data;
   8680 	struct mcx_reg_mtmp mtmp;
   8681 	int rv;
   8682 	struct timeval updated;
   8683 
   8684 	TIMESPEC_TO_TIMEVAL(&updated, &ks->ks_updated);
   8685 
   8686 	if (!ratecheck(&updated, &mcx_kstat_mtmp_rate))
   8687 		return (0);
   8688 
   8689 	memset(&mtmp, 0, sizeof(mtmp));
   8690 	htobem16(&mtmp.mtmp_sensor_index, ks->ks_unit);
   8691 
   8692 	KERNEL_LOCK(); /* XXX */
   8693 	rv = mcx_access_hca_reg(sc, MCX_REG_MTMP, MCX_REG_OP_READ,
   8694 	    &mtmp, sizeof(mtmp));
   8695 	KERNEL_UNLOCK();
   8696 	if (rv != 0)
   8697 		return (EIO);
   8698 
   8699 	memset(kstat_kv_istr(&ktmp->ktmp_name), 0,
   8700 	    sizeof(kstat_kv_istr(&ktmp->ktmp_name)));
   8701 	memcpy(kstat_kv_istr(&ktmp->ktmp_name),
   8702 	    mtmp.mtmp_sensor_name, sizeof(mtmp.mtmp_sensor_name));
   8703 	kstat_kv_temp(&ktmp->ktmp_temperature) =
   8704 	    mcx_tmp_to_uK(&mtmp.mtmp_temperature);
   8705 	kstat_kv_temp(&ktmp->ktmp_threshold_lo) =
   8706 	    mcx_tmp_to_uK(&mtmp.mtmp_temperature_threshold_lo);
   8707 	kstat_kv_temp(&ktmp->ktmp_threshold_hi) =
   8708 	    mcx_tmp_to_uK(&mtmp.mtmp_temperature_threshold_hi);
   8709 
   8710 	TIMEVAL_TO_TIMESPEC(&updated, &ks->ks_updated);
   8711 
   8712 	return (0);
   8713 }
   8714 
   8715 struct mcx_queuestat {
   8716 	char			 name[KSTAT_KV_NAMELEN];
   8717 	enum kstat_kv_type	 type;
   8718 };
   8719 
   8720 static const struct mcx_queuestat mcx_queue_kstat_tpl[] = {
   8721 	{ "RQ SW prod",		KSTAT_KV_T_COUNTER64 },
   8722 	{ "RQ HW prod",		KSTAT_KV_T_COUNTER64 },
   8723 	{ "RQ HW cons",		KSTAT_KV_T_COUNTER64 },
   8724 	{ "RQ HW state",	KSTAT_KV_T_ISTR },
   8725 
   8726 	{ "SQ SW prod",		KSTAT_KV_T_COUNTER64 },
   8727 	{ "SQ SW cons",		KSTAT_KV_T_COUNTER64 },
   8728 	{ "SQ HW prod",		KSTAT_KV_T_COUNTER64 },
   8729 	{ "SQ HW cons",		KSTAT_KV_T_COUNTER64 },
   8730 	{ "SQ HW state",	KSTAT_KV_T_ISTR },
   8731 
   8732 	{ "CQ SW cons",		KSTAT_KV_T_COUNTER64 },
   8733 	{ "CQ HW prod",		KSTAT_KV_T_COUNTER64 },
   8734 	{ "CQ HW cons",		KSTAT_KV_T_COUNTER64 },
   8735 	{ "CQ HW notify",	KSTAT_KV_T_COUNTER64 },
   8736 	{ "CQ HW solicit",	KSTAT_KV_T_COUNTER64 },
   8737 	{ "CQ HW status",	KSTAT_KV_T_ISTR },
   8738 	{ "CQ HW state",	KSTAT_KV_T_ISTR },
   8739 
   8740 	{ "EQ SW cons",		KSTAT_KV_T_COUNTER64 },
   8741 	{ "EQ HW prod",		KSTAT_KV_T_COUNTER64 },
   8742 	{ "EQ HW cons",		KSTAT_KV_T_COUNTER64 },
   8743 	{ "EQ HW status",	KSTAT_KV_T_ISTR },
   8744 	{ "EQ HW state",	KSTAT_KV_T_ISTR },
   8745 };
   8746 
   8747 static int	mcx_kstat_queue_read(struct kstat *);
   8748 
   8749 static void
   8750 mcx_kstat_attach_queues(struct mcx_softc *sc)
   8751 {
   8752 	struct kstat *ks;
   8753 	struct kstat_kv *kvs;
   8754 	int q, i;
   8755 
   8756 	for (q = 0; q < sc->sc_nqueues; q++) {
   8757 		ks = kstat_create(DEVNAME(sc), 0, "mcx-queues", q,
   8758 		    KSTAT_T_KV, 0);
   8759 		if (ks == NULL) {
   8760 			/* unable to attach queue stats %u, q */
   8761 			continue;
   8762 		}
   8763 
   8764 		kvs = mallocarray(nitems(mcx_queue_kstat_tpl),
   8765 		    sizeof(*kvs), M_DEVBUF, M_WAITOK);
   8766 
   8767 		for (i = 0; i < nitems(mcx_queue_kstat_tpl); i++) {
   8768 			const struct mcx_queuestat *tpl =
   8769 			    &mcx_queue_kstat_tpl[i];
   8770 
   8771 			kstat_kv_init(&kvs[i], tpl->name, tpl->type);
   8772 		}
   8773 
   8774 		ks->ks_softc = &sc->sc_queues[q];
   8775 		ks->ks_data = kvs;
   8776 		ks->ks_datalen = nitems(mcx_queue_kstat_tpl) * sizeof(*kvs);
   8777 		ks->ks_read = mcx_kstat_queue_read;
   8778 
   8779 		sc->sc_queues[q].q_kstat = ks;
   8780 		kstat_install(ks);
   8781 	}
   8782 }
   8783 
   8784 static int
   8785 mcx_kstat_queue_read(struct kstat *ks)
   8786 {
   8787 	struct mcx_queues *q = ks->ks_softc;
   8788 	struct mcx_softc *sc = q->q_sc;
   8789 	struct kstat_kv *kvs = ks->ks_data;
   8790 	union {
   8791 		struct mcx_rq_ctx rq;
   8792 		struct mcx_sq_ctx sq;
   8793 		struct mcx_cq_ctx cq;
   8794 		struct mcx_eq_ctx eq;
   8795 	} u;
   8796 	const char *text;
   8797 	int error = 0;
   8798 
   8799 	KERNEL_LOCK();
   8800 
   8801 	if (mcx_query_rq(sc, &q->q_rx, &u.rq) != 0) {
   8802 		error = EIO;
   8803 		goto out;
   8804 	}
   8805 
   8806 	kstat_kv_u64(kvs++) = q->q_rx.rx_prod;
   8807 	kstat_kv_u64(kvs++) = bemtoh32(&u.rq.rq_wq.wq_sw_counter);
   8808 	kstat_kv_u64(kvs++) = bemtoh32(&u.rq.rq_wq.wq_hw_counter);
   8809 	switch ((bemtoh32(&u.rq.rq_flags) & MCX_RQ_CTX_STATE_MASK) >>
   8810 	    MCX_RQ_CTX_STATE_SHIFT) {
   8811 	case MCX_RQ_CTX_STATE_RST:
   8812 		text = "RST";
   8813 		break;
   8814 	case MCX_RQ_CTX_STATE_RDY:
   8815 		text = "RDY";
   8816 		break;
   8817 	case MCX_RQ_CTX_STATE_ERR:
   8818 		text = "ERR";
   8819 		break;
   8820 	default:
   8821 		text = "unknown";
   8822 		break;
   8823 	}
   8824 	strlcpy(kstat_kv_istr(kvs), text, sizeof(kstat_kv_istr(kvs)));
   8825 	kvs++;
   8826 
   8827 	if (mcx_query_sq(sc, &q->q_tx, &u.sq) != 0) {
   8828 		error = EIO;
   8829 		goto out;
   8830 	}
   8831 
   8832 	kstat_kv_u64(kvs++) = q->q_tx.tx_prod;
   8833 	kstat_kv_u64(kvs++) = q->q_tx.tx_cons;
   8834 	kstat_kv_u64(kvs++) = bemtoh32(&u.sq.sq_wq.wq_sw_counter);
   8835 	kstat_kv_u64(kvs++) = bemtoh32(&u.sq.sq_wq.wq_hw_counter);
   8836 	switch ((bemtoh32(&u.sq.sq_flags) & MCX_SQ_CTX_STATE_MASK) >>
   8837 	    MCX_SQ_CTX_STATE_SHIFT) {
   8838 	case MCX_SQ_CTX_STATE_RST:
   8839 		text = "RST";
   8840 		break;
   8841 	case MCX_SQ_CTX_STATE_RDY:
   8842 		text = "RDY";
   8843 		break;
   8844 	case MCX_SQ_CTX_STATE_ERR:
   8845 		text = "ERR";
   8846 		break;
   8847 	default:
   8848 		text = "unknown";
   8849 		break;
   8850 	}
   8851 	strlcpy(kstat_kv_istr(kvs), text, sizeof(kstat_kv_istr(kvs)));
   8852 	kvs++;
   8853 
   8854 	if (mcx_query_cq(sc, &q->q_cq, &u.cq) != 0) {
   8855 		error = EIO;
   8856 		goto out;
   8857 	}
   8858 
   8859 	kstat_kv_u64(kvs++) = q->q_cq.cq_cons;
   8860 	kstat_kv_u64(kvs++) = bemtoh32(&u.cq.cq_producer_counter);
   8861 	kstat_kv_u64(kvs++) = bemtoh32(&u.cq.cq_consumer_counter);
   8862 	kstat_kv_u64(kvs++) = bemtoh32(&u.cq.cq_last_notified);
   8863 	kstat_kv_u64(kvs++) = bemtoh32(&u.cq.cq_last_solicit);
   8864 
   8865 	switch ((bemtoh32(&u.cq.cq_status) & MCX_CQ_CTX_STATUS_MASK) >>
   8866 	    MCX_CQ_CTX_STATUS_SHIFT) {
   8867 	case MCX_CQ_CTX_STATUS_OK:
   8868 		text = "OK";
   8869 		break;
   8870 	case MCX_CQ_CTX_STATUS_OVERFLOW:
   8871 		text = "overflow";
   8872 		break;
   8873 	case MCX_CQ_CTX_STATUS_WRITE_FAIL:
   8874 		text = "write fail";
   8875 		break;
   8876 	default:
   8877 		text = "unknown";
   8878 		break;
   8879 	}
   8880 	strlcpy(kstat_kv_istr(kvs), text, sizeof(kstat_kv_istr(kvs)));
   8881 	kvs++;
   8882 
   8883 	switch ((bemtoh32(&u.cq.cq_status) & MCX_CQ_CTX_STATE_MASK) >>
   8884 	    MCX_CQ_CTX_STATE_SHIFT) {
   8885 	case MCX_CQ_CTX_STATE_SOLICITED:
   8886 		text = "solicited";
   8887 		break;
   8888 	case MCX_CQ_CTX_STATE_ARMED:
   8889 		text = "armed";
   8890 		break;
   8891 	case MCX_CQ_CTX_STATE_FIRED:
   8892 		text = "fired";
   8893 		break;
   8894 	default:
   8895 		text = "unknown";
   8896 		break;
   8897 	}
   8898 	strlcpy(kstat_kv_istr(kvs), text, sizeof(kstat_kv_istr(kvs)));
   8899 	kvs++;
   8900 
   8901 	if (mcx_query_eq(sc, &q->q_eq, &u.eq) != 0) {
   8902 		error = EIO;
   8903 		goto out;
   8904 	}
   8905 
   8906 	kstat_kv_u64(kvs++) = q->q_eq.eq_cons;
   8907 	kstat_kv_u64(kvs++) = bemtoh32(&u.eq.eq_producer_counter);
   8908 	kstat_kv_u64(kvs++) = bemtoh32(&u.eq.eq_consumer_counter);
   8909 
   8910 	switch ((bemtoh32(&u.eq.eq_status) & MCX_EQ_CTX_STATUS_MASK) >>
   8911 	    MCX_EQ_CTX_STATUS_SHIFT) {
   8912 	case MCX_EQ_CTX_STATUS_EQ_WRITE_FAILURE:
   8913 		text = "write fail";
   8914 		break;
   8915 	case MCX_EQ_CTX_STATUS_OK:
   8916 		text = "OK";
   8917 		break;
   8918 	default:
   8919 		text = "unknown";
   8920 		break;
   8921 	}
   8922 	strlcpy(kstat_kv_istr(kvs), text, sizeof(kstat_kv_istr(kvs)));
   8923 	kvs++;
   8924 
   8925 	switch ((bemtoh32(&u.eq.eq_status) & MCX_EQ_CTX_STATE_MASK) >>
   8926 	    MCX_EQ_CTX_STATE_SHIFT) {
   8927 	case MCX_EQ_CTX_STATE_ARMED:
   8928 		text = "armed";
   8929 		break;
   8930 	case MCX_EQ_CTX_STATE_FIRED:
   8931 		text = "fired";
   8932 		break;
   8933 	default:
   8934 		text = "unknown";
   8935 		break;
   8936 	}
   8937 	strlcpy(kstat_kv_istr(kvs), text, sizeof(kstat_kv_istr(kvs)));
   8938 	kvs++;
   8939 
   8940 	nanouptime(&ks->ks_updated);
   8941 out:
   8942 	KERNEL_UNLOCK();
   8943 	return (error);
   8944 }
   8945 
   8946 #endif /* NKSTAT > 0 */
   8947 
   8948 static unsigned int
   8949 mcx_timecounter_read(struct timecounter *tc)
   8950 {
   8951 	struct mcx_softc *sc = tc->tc_priv;
   8952 
   8953 	return (mcx_rd(sc, MCX_INTERNAL_TIMER_L));
   8954 }
   8955 
   8956 static void
   8957 mcx_timecounter_attach(struct mcx_softc *sc)
   8958 {
   8959 	struct timecounter *tc = &sc->sc_timecounter;
   8960 
   8961 	tc->tc_get_timecount = mcx_timecounter_read;
   8962 	tc->tc_counter_mask = ~0U;
   8963 	tc->tc_frequency = sc->sc_khz * 1000;
   8964 	tc->tc_name = device_xname(sc->sc_dev);
   8965 	tc->tc_quality = -100;
   8966 	tc->tc_priv = sc;
   8967 
   8968 	tc_init(tc);
   8969 }
   8970