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History log of /src/sys/dev/pci/if_rtw_pci.c
RevisionDateAuthorComments
 1.25  25-Sep-2022  thorpej Remove unnecessary include of <sys/malloc.h>.
 1.24  09-Dec-2018  jdolecek use pci_intr_establish_xname() everywhere
 1.23  29-Mar-2014  christos branches: 1.23.28; 1.23.30;
make pci_intr_string and eisa_intr_string take a buffer and a length
instead of relying in local static storage.
 1.22  30-Sep-2012  dsl branches: 1.22.2;
Fix debug build
 1.21  23-Sep-2012  chs reformat product array to match openbsd.
 1.20  26-Jul-2011  dyoung branches: 1.20.2; 1.20.12;
Replace anonymous constants, 0x10, 0x14, ..., with PCI_BAR(0),
PCI_BAR(1), .... There was no change in the generated assembly. I used
this semantic patch:

@ mapsit @
identifier bar;
expression pact;
@@

(
pci_mapreg_map
|
Cardbus_mapreg_map
)(pact, bar, ...)

@ depends on mapsit @
identifier mapsit.bar;
@@
(
- #define bar 0x10
+ #define bar PCI_BAR(0)
|
- #define bar 0x14
+ #define bar PCI_BAR(1)
|
- #define bar 0x18
+ #define bar PCI_BAR(2)
|
- #define bar 0x1C
+ #define bar PCI_BAR(3)
|
- #define bar 0x20
+ #define bar PCI_BAR(4)
)
 1.19  26-Jan-2011  dyoung Make oodles of mainly cosmetic changes that make rtw(4)'s PCI attachment
resemble its CardBus attachment very, very closely: slightly more than
24 lines are different. Alas, I cannot commit the CardBus part of this
change, yet, because I have to finish my overhaul of CardBus resource
handling, first.
 1.18  04-Mar-2010  dyoung branches: 1.18.2; 1.18.4; 1.18.6;
Make cosmetic changes in order to reduce differences with
sys/dev/cardbus/if_rtw_cardbus.c: remove an unnecessary #include.
Change a few cut & paste instances of ADM8211 to RTL8180. Make the
suspend & resume functions static, add declarations for them at the top
of the file, and move the functions themselves to the bottom.
 1.17  24-Feb-2010  dyoung A pointer typedef entails trading too much flexibility to declare const
and non-const types, and the kernel uses both const and non-const
PMF qualifiers and device suspensors, so change the pmf_qual_t and
device_suspensor_t typedefs from "pointers to const" to non-pointer,
non-const types.
 1.16  08-Jan-2010  dyoung branches: 1.16.2;
Expand PMF_FN_* macros.
 1.15  16-Sep-2009  dyoung In pmf(9), improve the implementation of device self-suspension
and make suspension by self, by drvctl(8), and by ACPI system sleep
play nice together. Start solidifying some temporary API changes.

1. Extract a new header file, <sys/device_if.h>, from <sys/device.h> and
#include it from <sys/pmf.h> instead of <sys/device.h> to break the
circular dependency between <sys/device.h> and <sys/pmf.h>.

2. Introduce pmf_qual_t, an aggregate of qualifications on a PMF
suspend/resume call. Start to replace instances of PMF_FN_PROTO,
PMF_FN_ARGS, et cetera, with a pmf_qual_t.

3. Introduce the notion of a "suspensor," an entity that holds a
device in suspension. More than one suspensor may hold a device
at once. A device stays suspended as long as at least one
suspensor holds it. A device resumes when the last suspensor
releases it.

Currently, the kernel defines three suspensors,

3a the system-suspensor: for system suspension, initiated
by 'sysctl -w machdep.sleep_state=3', by lid closure, by
power-button press, et cetera,

3b the drvctl-suspensor: for device suspension by /dev/drvctl
ioctl, e.g., drvctl -S sip0.

3c the system self-suspensor: for device drivers that suspend
themselves and their children. Several drivers for network
interfaces put the network device to sleep while it is not
administratively up, that is, after the kernel calls if_stop(,
1). The self-suspensor should not be used directly. See
the description of suspensor delegates, below.

A suspensor can have one or more "delegates". A suspensor can
release devices that its delegates hold suspended. Right now,
only the system self-suspensor has delegates. For each device
that a self-suspending driver attaches, it creates the device's
self-suspensor, a delegate of the system self-suspensor.

Suspensors stop a system-wide suspend/resume cycle from waking
devices that the operator put to sleep with drvctl before the cycle.
They also help self-suspension to work more simply, safely, and in
accord with expectations.

4. Add the notion of device activation level, devact_level_t,
and a routine for checking the current activation level,
device_activation(). Current activation levels are DEVACT_LEVEL_BUS,
DEVACT_LEVEL_DRIVER, and DEVACT_LEVEL_CLASS, which respectively
indicate that the device's bus is active, that the bus and device are
active, and that the bus, device, and the functions of the device's
class (network, audio) are active.

Suspend/resume calls can be qualified with a devact_level_t.
The power-management framework treats a devact_level_t that
qualifies a device suspension as the device's current activation
level; it only runs hooks to reduce the activation level from
the presumed current level to the fully suspended state. The
framework treats a devact_level_t qualifying device resumption
as the target activation level; it only runs hooks to raise the
activation level to the target.

5. Use pmf_qual_t, devact_level_t, and self-suspensors in several
drivers.

6. Temporarily add an unused power-management workqueue that I will
remove or replace, soon.
 1.14  05-Sep-2009  tsutsui Invert logic around nested pmf(9) registrations for readability.

XXX: should these pmf(9) calls be moved into MI attach functions
XXX: using function pointers for suspend and resume passed via softc?
 1.13  06-May-2009  cegger struct cfdata * -> cfdata_t, no functional changes intended.
 1.12  28-Apr-2008  martin branches: 1.12.14;
Remove clause 3 and 4 from TNF licenses
 1.11  21-Mar-2008  dyoung branches: 1.11.2; 1.11.4;
pci_activate() expects for its void * argument to be a device_t,
so change the type of the argument to device_t. Update each use
of pci_activate().

Use device_t and accessors. Use aprint_*_dev().
 1.10  12-Mar-2008  dyoung Use device_t and its accessors throughout. Use aprint_*_dev().

Improve PMF-ability.

Add a 'flags' argument to suspend/resume handlers and
callers such as pmf_system_suspend().

Define a flag, PMF_F_SELF, which indicates to PMF that a
device is suspending/resuming itself. Add helper routines,
pmf_device_suspend_self(dev) and pmf_device_resume_self(dev),
that call pmf_device_suspend(dev, PMF_F_SELF) and
pmf_device_resume(dev, PMF_F_SELF), respectively. Use
PMF_F_SELF to suspend/resume self in ath(4), audio(4),
rtw(4), and sip(4).

In ath(4) and in rtw(4), replace the icky sc_enable/sc_disable
callbacks, provided by the bus front-end, with
self-suspension/resumption. Also, clean up the bus
front-ends. Make sure that the interrupt handler is
disestablished during suspension. Get rid of driver-private
flags (e.g., RTW_F_ENABLED, ath_softc->sc_invalid); use
device_is_active()/device_has_power() calls, instead.

In the network-class suspend handler, call if_stop(, 0)
instead of if_stop(, 1), because the latter is superfluous
(bus- and driver-suspension hooks will 'disable' the NIC),
and it may cause recursion.

In the network-class resume handler, prevent infinite
recursion through if_init() by getting out early if we are
self-suspending (PMF_F_SELF).

rtw(4) improvements:

Destroy rtw(4) callouts when we detach it. Make rtw at
pci detachable. Print some more information with the "rx
frame too long" warning.

Remove activate() methods:

Get rid of rtw_activate() and ath_activate(). The device
activate() methods are not good for much these days.

Make ath at cardbus resume with crypto functions intact:

Introduce a boolean device property, "pmf-powerdown". If
pmf-powerdown is present and false, it indicates that a
bus back-end should not remove power from a device.

Honor this property in cardbus_child_suspend().

Set this property to 'false' in ath_attach(), since removing
power from an ath at cardbus seems to lobotomize the WPA
crypto engine. XXX Should the pmf-powerdown property
propagate toward the root of the device tree?

Miscellaneous ath(4) changes:

Warn if ath(4) tries to write crypto keys to suspended
hardware.

Reduce differences between FreeBSD and NetBSD in ath(4)
multicast filter setup.

Make ath_printrxbuf() print an rx descriptor's status &
key index, to help debug crypto errors.

Shorten a staircase in ath_ioctl(). Don't check for
ieee80211_ioctl() return code ERESTART, it never happens.
 1.9  21-Dec-2007  dyoung branches: 1.9.2; 1.9.6;
Do not embed a struct device in rtw_softc any longer. Register
both pci and cardbus attachments with CFATTACH_DECL_NEW(). Access
the softc through the device_t using device_private().

While I'm here, change a couple of KASSERT()s about the Rx buffer
length to a warning.
 1.8  19-Oct-2007  ad branches: 1.8.4; 1.8.8;
machine/{bus,cpu,intr}.h -> sys/{bus,cpu,intr}.h
 1.7  01-Sep-2006  dyoung branches: 1.7.12; 1.7.26; 1.7.28; 1.7.32;
Remove the declaration of an unused local variable 'reg'.
 1.6  17-Jun-2006  christos re-factor the pci powestate api. reviewed by gimpy
 1.5  28-Apr-2006  rpaulo branches: 1.5.2; 1.5.4;
Use aprint family of functions.
 1.4  04-Dec-2005  christos branches: 1.4.4; 1.4.6; 1.4.8; 1.4.10; 1.4.12;
PR/32181: Matthias-Christian Ott: Add support for the Belkin F5D6001 pci device
 1.3  22-Jun-2005  dyoung branches: 1.3.2;
Resolve conflicts in importation of 18-May-2005 ath(4) / net80211(9)
from FreeBSD. Introduce compatibility shims (sys/dev/ic/ath_netbsd.[ch],
sys/net80211/ieee80211_netbsd.[ch]). Update drivers (an, atu, atw,
awi, ipw, iwi, rtw, wi) for the new net80211(9) API.
 1.2  27-Feb-2005  perry nuke trailing whitespace
 1.1  26-Sep-2004  dyoung branches: 1.1.2; 1.1.6; 1.1.8;
Add Cardbus, PCI bus front-ends for RTL8180 802.11b MAC/baseband.
 1.1.8.1  19-Mar-2005  yamt sync with head. xen and whitespace. xen part is not finished.
 1.1.6.1  29-Apr-2005  kent sync with -current
 1.1.2.5  11-Dec-2005  christos Sync with head.
 1.1.2.4  10-Nov-2005  skrll Sync with HEAD. Here we go again...
 1.1.2.3  04-Mar-2005  skrll Sync with HEAD.

Hi Perry!
 1.1.2.2  19-Oct-2004  skrll Sync with HEAD
 1.1.2.1  26-Sep-2004  skrll file if_rtw_pci.c was added on branch ktrace-lwp on 2004-10-19 15:56:59 +0000
 1.3.2.6  24-Mar-2008  yamt sync with head.
 1.3.2.5  17-Mar-2008  yamt sync with head.
 1.3.2.4  21-Jan-2008  yamt sync with head
 1.3.2.3  27-Oct-2007  yamt sync with head.
 1.3.2.2  30-Dec-2006  yamt sync with head.
 1.3.2.1  21-Jun-2006  yamt sync with head.
 1.4.12.1  24-May-2006  tron Merge 2006-05-24 NetBSD-current into the "peter-altq" branch.
 1.4.10.1  11-May-2006  elad sync with head
 1.4.8.3  03-Sep-2006  yamt sync with head.
 1.4.8.2  26-Jun-2006  yamt sync with head.
 1.4.8.1  24-May-2006  yamt sync with head.
 1.4.6.1  01-Jun-2006  kardel Sync with head.
 1.4.4.1  09-Sep-2006  rpaulo sync with head
 1.5.4.1  13-Jul-2006  gdamore Merge from HEAD.
 1.5.2.1  19-Jun-2006  chap Sync with head.
 1.7.32.1  25-Oct-2007  bouyer Sync with HEAD.
 1.7.28.3  23-Mar-2008  matt sync with HEAD
 1.7.28.2  09-Jan-2008  matt sync with HEAD
 1.7.28.1  06-Nov-2007  matt sync with HEAD
 1.7.26.1  26-Oct-2007  joerg Sync with HEAD.

Follow the merge of pmap.c on i386 and amd64 and move
pmap_init_tmp_pgtbl into arch/x86/x86/pmap.c. Modify the ACPI wakeup
code to restore CR4 before jumping back into kernel space as the large
page option might cover that.
 1.7.12.1  23-Oct-2007  ad Sync with head.
 1.8.8.1  02-Jan-2008  bouyer Sync with HEAD
 1.8.4.1  26-Dec-2007  ad Sync with head.
 1.9.6.2  02-Jun-2008  mjf Sync with HEAD.
 1.9.6.1  03-Apr-2008  mjf Sync with HEAD.
 1.9.2.1  24-Mar-2008  keiichi sync with head.
 1.11.4.4  11-Mar-2010  yamt sync with head
 1.11.4.3  16-Sep-2009  yamt sync with head
 1.11.4.2  16-May-2009  yamt sync with head
 1.11.4.1  16-May-2008  yamt sync with head.
 1.11.2.1  18-May-2008  yamt sync with head.
 1.12.14.1  13-May-2009  jym Sync with HEAD.

Commit is split, to avoid a "too many arguments" protocol error.
 1.16.2.1  30-Apr-2010  uebayasi Sync with HEAD.
 1.18.6.1  08-Feb-2011  bouyer Sync with HEAD
 1.18.4.1  06-Jun-2011  jruoho Sync with HEAD.
 1.18.2.1  05-Mar-2011  rmind sync with head
 1.20.12.2  20-Aug-2014  tls Rebase to HEAD as of a few days ago.
 1.20.12.1  20-Nov-2012  tls Resync to 2012-11-19 00:00:00 UTC
 1.20.2.2  22-May-2014  yamt sync with head.

for a reference, the tree before this commit was tagged
as yamt-pagecache-tag8.

this commit was splitted into small chunks to avoid
a limitation of cvs. ("Protocol error: too many arguments")
 1.20.2.1  30-Oct-2012  yamt sync with head
 1.22.2.1  18-May-2014  rmind sync with head
 1.23.30.1  10-Jun-2019  christos Sync with HEAD
 1.23.28.1  26-Dec-2018  pgoyette Sync with HEAD, resolve a few conflicts

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