Commit Graph

29 Commits

Author SHA1 Message Date
Vladimir Kondratiev
8bf6adb988 wil6210: fix memory leak in the AP flow
When switching between STA and AP modes, memory allocated for Rx vring leaks
This is because start_ap() allocates Rx vring but stop_ap() do not free it.
Logically, Rx vring is not valid (HW can't use it anymore), so free it in reset()
Also, check double init for Rx vring and bail out with -EINVAL

Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-03-17 13:44:18 -04:00
Vladimir Kondratiev
972072aa79 wil6210: reset on power good
Configure hardware to perform full reset on "power good". This mean,
reset HW on system boot. This improves card stability.
By default this is off.

Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-03-17 13:44:17 -04:00
Vladimir Kondratiev
1712399121 wil6210: sort HW registers definitions
Put all registers in order for easier navigation;
fix naming to reflect hardware cluster

Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-03-17 13:44:17 -04:00
Vladimir Kondratiev
98a65b59f8 wil6210: report reset time
Useful to detect hardware problems

Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-03-17 13:44:17 -04:00
Vladimir Kondratiev
36b10a7239 wil6210: update target reset to support new HW
Support for new chip revision. Revision read from the
internal register, PCIE config's "revision id" register
do not indicate HW version properly

Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-03-17 13:44:17 -04:00
Vladimir Kondratiev
e83eb2fcae wil6210: enable scan while connected
New firmware do support scan while connected. Enable it.

Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-03-17 13:44:16 -04:00
Vladimir Kondratiev
e58c9f7043 wil6210: Block data till "data port open" reported
When connection established, as reported by WMI_CONNECT_EVENTID,
4-way handshaking required for the secure connection is not done
yet. It is indicated by another WMI event. Wait for it and only then
allow data traffic. In case of non-secure connection, FW reports
"data port open" immediately after connection.

Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-03-17 13:44:16 -04:00
Vladimir Kondratiev
4d55a0a1a8 wil6210: single station disconnect
implement del_station() method in the struct cfg80211_ops
It allows to disconnect single peer from the AP

Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-02-28 14:33:37 -05:00
Vladimir Kondratiev
108d1eb612 wil6210: use ether_addr_equal
Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-02-28 14:33:37 -05:00
Vladimir Kondratiev
91886b0b7d wil6210: disconnect only requested peer
Disconnect event reported by the FW, should lead to disconnection
of only requested peer. Find for the appropriate CID and disconnect
only it

For AP-like interface, notify cfg80211 with del_sta(),
for the client type interface, disconnect and turn link off.

Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-02-28 14:33:34 -05:00
Vladimir Kondratiev
9a1773847d wil6210: Find free vring for Tx
There are 24 possible Tx vrings; when doind multiple connections, more then
one vring has to be used. Search for free one and select it.

Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-02-28 14:33:31 -05:00
Vladimir Kondratiev
b4490f423c wil6210: Block ACK
When running multiple connections, hardware can't do BACK reordering
and it should be done on the host.

Model after mac80211's implementation. Drop RCU for now;
to be re-added when BACK will be stabilized

BACK handshaking is not implemented yet in the hardware,
pretend it was done to support the way FW operating

Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-02-28 14:33:30 -05:00
Vladimir Kondratiev
3df2cd3618 wil6210: multiple connect - initial support
Enable multiple (up to 8 - HW/FW limitation) simultaneous connections.
Each connection has its own CID (connection ID) that describes chip's
beam-forming entity. Tx Vring should refer to correct CID for frame to reach
its destination.

Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-02-28 14:33:29 -05:00
Wolfram Sang
16735d022f tree-wide: use reinit_completion instead of INIT_COMPLETION
Use this new function to make code more comprehensible, since we are
reinitialzing the completion, not initializing.

[akpm@linux-foundation.org: linux-next resyncs]
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Acked-by: Linus Walleij <linus.walleij@linaro.org> (personally at LCE13)
Cc: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-11-15 09:32:21 +09:00
Kirshenbaum Erez
4c895f41a7 wil6210: Fix AP/PCP start flow
WMI PCP Start flow should not be handled through:
net_device_ops->ndo_open()->wil_up()->__wil_up()
because it missing mandatory FW parameters (SSID,Channel,IEs, Security...).

Prior to AP starting __wil_up() may be called with iftype set
cfg80211_ops->change_virtual_intf(NL80211_IFTYPE_AP or STATION)
depend on the application hostapd/wpa_supplicant/iw.
there should not be an attempt to start an AP flow,
AP/PCP start flow will be started latter by cfg80211_ops->start_ap().

Signed-off-by: Kirshenbaum Erez <erezk@wilocity.com>
Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-06-12 15:06:52 -04:00
Vladimir Kondratiev
e31b25627f wil6210: Init Rx vring right after reset
at the vring initialisation, memory pool get allocated in the FW.
Make it 1-st because FW need this memory pool to precess
next commands

Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-06-12 15:06:52 -04:00
Vladimir Kondratiev
b338f74e33 wil6210: Don't use wdev->sme_state
sme_state is private wdev's variable.
Track connection state internally

Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-05-29 15:22:32 -04:00
Vladimir Kondratiev
e0287c4ab8 wil6210: use NAPI
Introduce NAPI for Rx and Tx completion.

This fixes packet reordering that happens when Rx handled right in
the IRQ: netif_rx puts packet in 'percpu' queue, then network stack
fetches packets from 'percpu' queues for processing, with different
pattern of queue switching. As result, network stack see packets
in different order. This causes hard to understand TCP throughput
degradation in about 30min

Complete polling if only one packet was processed - this eliminates
empty polls that would be otherwise done at the end of each burst

Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-05-22 15:08:35 -04:00
Vladimir Kondratiev
b80231773a wil6210: sync with new firmware
Adjust driver for changes in the FW API.
Noticeable changes in the FW are:
- temperature sensing
- infrastructure for multiple connections
- infrastructure for P2P
- signal strength indication

This commit introduces only changes that are required to support same functionality
as previous firmware, no new features.

Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-03-13 14:26:21 -04:00
Vladimir Kondratiev
55f7acdd24 wil6210: new SW reset
New firmware allows for shorter SW reset procedure.
After SW reset, FW raises "fw done" IRQ, at this
moment mailbox control structures are initialized, driver caches it.

New status bit wil_status_reset_done introduced to track completion
of the reset. It is set by "fw ready" irq, and required for WMI rx flow
to access control structures.

WMI Tx flow protected by other status bit, wil_status_fwready. It can't
be set before wil_status_reset_done is set by design.

Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-03-13 14:26:21 -04:00
Vladimir Kondratiev
c7996ef852 wil6210: headers clean-up
Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-03-13 14:26:21 -04:00
Vladimir Kondratiev
d81079f170 wil6210: refactor connect_worker
Move wmi_connect_worker() to the main.c and change names for consistency.

Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-03-13 14:23:04 -04:00
Vladimir Kondratiev
afda8bb50b wil6210: checkpatch warnings
Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-01-30 15:07:18 -05:00
Vladimir Kondratiev
7743882d6f wil6210: fix checkpatch CamelCase warnings
Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-01-30 15:07:17 -05:00
Vladimir Kondratiev
e08b5906cc wil6210: Reorder reset preparation sequence
Disable interrupts first to prevent spurious WMI events arrival

Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-01-30 15:07:16 -05:00
Vladimir Kondratiev
56f004b467 wil6210: Separate common code for mbox regs caching to function
Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-01-30 15:07:16 -05:00
Vladimir Kondratiev
b98917d742 wil6210: Fix "don't scan after connect" logic
When connect times out, scan was not re-enabled.

Strictly say, it is firmware issue - it should issue "disconnect"
event but it does not. Compensate in the driver.

Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-01-30 15:07:15 -05:00
Vladimir Kondratiev
2057ebb2bd wil6210: remove raw wil_dbg() calls
Introduce debug category "MISC", convert all raw wil_dbg() to this category.
This improves dynamic debug manageability

Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-01-30 15:07:12 -05:00
Vladimir Kondratiev
2be7d22f06 wireless: add new wil6210 802.11ad 60GHz driver
This adds support for the 60 GHz 802.11ad Wilocity card
through a new driver, wil6210. Wilocity implemented the
firmware, QCA maintains the device driver.

Currently supported:

- STA: with security
- AP: limited to 1 connected STA, security disabled
- Monitor: due to a hardware/firmware limitation
  either control or non-control frames are monitored

Using a STA and AP with this drive, one can assemble
a fully functional BSS. Throughput of 1.2Gbps is achieved
with iperf.

The wil6210 cards have on-board flash memory for the
firmware, the cards comes pre-flashed and no firmware
download is required.

For more details see:

http://wireless.kernel.org/en/users/Drivers/wil6210

Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-off-by: Luis R. Rodriguez <mcgrof@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-01-04 16:10:53 -05:00