Commit Graph

121739 Commits

Author SHA1 Message Date
Dean Nelson 31c15a2f24 e1000: save skb counts in TX to avoid cache misses
Virtual Machines with emulated e1000 network adapter running on Parallels'
server were seeing kernel panics due to the e1000 driver dereferencing an
unexpected NULL pointer retrieved from buffer_info->skb.

The problem has been addressed for the e1000e driver, but not for the e1000.
Since the two drivers share similar code in the affected area, a port of the
following e1000e driver commit solves the issue for the e1000 driver:

commit 9ed318d546
Author: Tom Herbert <therbert@google.com>
Date:   Wed May 5 14:02:27 2010 +0000

    e1000e: save skb counts in TX to avoid cache misses

    In e1000_tx_map, precompute number of segements and bytecounts which
    are derived from fields in skb; these are stored in buffer_info.  When
    cleaning tx in e1000_clean_tx_irq use the values in the associated
    buffer_info for statistics counting, this eliminates cache misses
    on skb fields.

Signed-off-by: Dean Nelson <dnelson@redhat.com>
Acked-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-26 12:55:18 -04:00
Dan Carpenter 18cf1248ec bna: off by one in bfa_msgq_rspq_pi_update()
The rspq->rsphdlr[] array has BFI_MC_MAX elements, so this test was
off by one.

Signed-off-by: Dan Carpenter <error27@gmail.com>
Acked-by: Rasesh Mody <rmody@brocade.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-26 12:55:18 -04:00
Dan Carpenter 44861f4455 bna: unlock on error path in pnad_pci_probe()
We introduced a new lock here, so there was error path which needs
an unlock now.

Signed-off-by: Dan Carpenter <error27@gmail.com>
Acked-by: Rasesh Mody <rmody@brocade.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-26 12:55:18 -04:00
Yaniv Rosner 3756a89f3d bnx2x: Add new PHY BCM54616
The BCM54616 PHY is very similar to the 54618SE, only without EEE support, which will not be activated due to querying the actual PHY type.
This check is already done by reading a dedicated PHY register.

Signed-off-by: Yaniv Rosner <yanivr@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-26 12:55:18 -04:00
Michal Schmidt 6e68c912ee bnx2x: resurrect RX hashing
bnx2x used to be able to set rxhash, but this was lost in the conversion
to hw_features (commit 66371c441).
Restore it and enable it by default.

Signed-off-by: Michal Schmidt <mschmidt@redhat.com>
CC: Vladislav Zolotarov <vladz@broadcom.com>
CC: Eilon Greenstein <eilong@broadcom.com>
CC: Dmitry Kravkov <dmitry@broadcom.com>
CC: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-26 12:49:23 -04:00
Ian Campbell 165c68d5a2 fcoe: convert to SKB paged frag API.
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: Robert Love <robert.w.love@intel.com>
Cc: "James E.J. Bottomley" <JBottomley@parallels.com>
Cc: devel@open-fcoe.org
Cc: linux-scsi@vger.kernel.org
Cc: netdev@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-26 12:38:43 -04:00
Ian Campbell 94b06fdbfc bnx2fc: convert to SKB paged frag API.
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: Bhanu Prakash Gollapudi <bprakash@broadcom.com>
Cc: "James E.J. Bottomley" <JBottomley@parallels.com>
Cc: linux-scsi@vger.kernel.org
Cc: netdev@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-26 12:38:43 -04:00
Ian Campbell f55c957247 bnx2x: convert to SKB paged frag API.
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: Eilon Greenstein <eilong@broadcom.com>
Cc: netdev@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-26 12:38:43 -04:00
Ian Campbell b7b6a688d2 bnx2: convert to SKB paged frag API.
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: Michael Chan <mchan@broadcom.com>
Cc: netdev@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-26 12:38:43 -04:00
Ian Campbell dc234d0b24 tg3: convert to SKB paged frag API.
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: Matt Carlson <mcarlson@broadcom.com>
Cc: Michael Chan <mchan@broadcom.com>
Cc: netdev@vger.kernel.org
Cc: devicetree-discuss@lists.ozlabs.org
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-26 12:38:43 -04:00
Ian Campbell 5581be3b48 IPoIB: convert to SKB paged frag API.
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: Roland Dreier <roland@kernel.org>
Cc: Sean Hefty <sean.hefty@intel.com>
Cc: Hal Rosenstock <hal.rosenstock@gmail.com>
Cc: linux-rdma@vger.kernel.org
Cc: netdev@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-26 12:38:42 -04:00
Ian Campbell cf383ebb13 IB: nes: convert to SKB paged frag API.
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: Faisal Latif <faisal.latif@intel.com>
Cc: Roland Dreier <roland@kernel.org>
Cc: Sean Hefty <sean.hefty@intel.com>
Cc: Hal Rosenstock <hal.rosenstock@gmail.com>
Cc: linux-rdma@vger.kernel.org
Cc: netdev@vger.kernel.org
Acked-by: Faisal Latif <faisal.latif@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-26 12:38:42 -04:00
Ian Campbell 70b1052ad2 IB: amso1100: convert to SKB paged frag API.
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: Tom Tucker <tom@opengridcomputing.com>
Cc: Steve Wise <swise@opengridcomputing.com>
Cc: Roland Dreier <roland@kernel.org>
Cc: Sean Hefty <sean.hefty@intel.com>
Cc: Hal Rosenstock <hal.rosenstock@gmail.com>
Cc: linux-rdma@vger.kernel.org
Cc: netdev@vger.kernel.org
Acked-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-26 12:38:42 -04:00
Ian Campbell c517202f3c atm: convert to SKB paged frag API.
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: Chas Williams <chas@cmf.nrl.navy.mil>
Cc: linux-atm-general@lists.sourceforge.net
Cc: netdev@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-26 12:38:42 -04:00
Luis R. Rodriguez a508a6ea23 ath9k: add AR9580 support
This has been tested in STA and AP mode by Florian.

Cc: David Quan <dquan@qca.qualcomm.com>
Cc: Kathy Giori <kgiori@qca.qualcomm.com>
Cc: Senthil Balasubramanian <senthilb@qca.qualcomm.com>
Tested-by: Florian Fainelli <florian@openwrt.org>
Signed-off-by: Luis R. Rodriguez <mcgrof@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-26 10:47:58 -04:00
Christian Lamparter 80d6e96be8 carl9170: Use do_div for 64-bit division to fix 32-bit kernels
Use the do_div macro for 64-bit division. Otherwise, the module will
reference __udivdi3 under 32-bit kernels, which is not allowed in
kernel space.

drivers/built-in.o: In function `carl9170_collect_tally':
cmd.c:191: undefined reference to `__udivdi3'
cmd.c:192: undefined reference to `__udivdi3'
cmd.c:193: undefined reference to `__udivdi3'

Reported-by: Kalle Valo <kvalo@adurom.com>
Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>
Tested-by: Kalle Valo <kvalo@adurom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-26 10:47:58 -04:00
Luis R. Rodriguez 5a63ef0faf ath9k_hw: add AR9580 support
Here are the AR9580 1.0 initvals checksums using the
Atheros initvals-tools [1]. This is useful for when
we udate the initvals again with other values. It ensures
that we match the same initvals used internally. The
tool is documented on the wiki [2].

$ ./initvals -f ar9580-1p0
0x00000000e912711f        ar9580_1p0_modes_fast_clock
0x000000004a488fc7        ar9580_1p0_radio_postamble
0x00000000f3888b02        ar9580_1p0_baseband_core
0x0000000003f783bb        ar9580_1p0_mac_postamble
0x0000000094be244a        ar9580_1p0_low_ob_db_tx_gain_table
0x0000000094be244a        ar9580_1p0_high_power_tx_gain_table
0x0000000090be244a        ar9580_1p0_lowest_ob_db_tx_gain_table
0x00000000ed9eaac6        ar9580_1p0_baseband_core_txfir_coeff_japan_2484
0x00000000c4d66d1b        ar9580_1p0_mac_core
0x00000000e8e9043a        ar9580_1p0_mixed_ob_db_tx_gain_table
0x000000003521a300        ar9580_1p0_wo_xlna_rx_gain_table
0x00000000301fc841        ar9580_1p0_soc_postamble
0x00000000a9a06b3a        ar9580_1p0_high_ob_db_tx_gain_table
0x00000000a15ccf1b        ar9580_1p0_soc_preamble
0x0000000029495000        ar9580_1p0_rx_gain_table
0x0000000037ac0ee8        ar9580_1p0_radio_core
0x00000000603a1b80        ar9580_1p0_baseband_postamble
0x000000003d8b4396        ar9580_1p0_pcie_phy_clkreq_enable_L1
0x00000000398b4396        ar9580_1p0_pcie_phy_clkreq_disable_L1
0x00000000397b4396        ar9580_1p0_pcie_phy_pll_on_clkreq

[1] git://git.kernel.org/pub/scm/linux/kernel/git/mcgrof/initvals-tool.git
[2] http://wireless.kernel.org/en/users/Drivers/ath9k_hw/initvals-tool

Cc: David Quan <dquan@qca.qualcomm.com>
Cc: Kathy Giori <kgiori@qca.qualcomm.com>
Cc: Senthil Balasubramanian <senthilb@qca.qualcomm.com>
Tested-by: Florian Fainelli <florian@openwrt.org>
Signed-off-by: Luis R. Rodriguez <mcgrof@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-26 10:47:58 -04:00
Mohammed Shafi Shajakhan 5fa71984f3 ath9k_htc: Add get_stats call back
currently this call back is used only in debugfs of mac80211

Signed-off-by: Mohammed Shafi Shajakhan <mohammed@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-26 10:47:57 -04:00
John W. Linville c3e5fac8e5 b43: correct warning for uninitialized variable 'macstat'
CC [M]  drivers/net/wireless/b43/pio.o
drivers/net/wireless/b43/pio.c: In function ‘pio_rx_frame’:
drivers/net/wireless/b43/pio.c:614:6: warning: ‘macstat’ may be used uninitialized in this function

Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-26 10:47:57 -04:00
John W. Linville 22c55e6e7e ath9k: remove replicated null check in ath_pci_aspm_init
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-26 10:47:57 -04:00
Rafał Miłecki ea5a08cfa5 b43: HT-PHY: read clip state
We don't know yet when to restore it, implement just reading. We found
out what for are that PHY ops by comparing HT with N code.

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-26 10:47:57 -04:00
Rafał Miłecki c750f795c7 b43: HT-PHY: use separated function for forcing RF sequence
Comparison of the HT and N code has shown similarities in the ops
performed after b43_mac_phy_clock_set. That way we understood what is
happening in the HT-PHY code.

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-26 10:47:57 -04:00
Rajkumar Manoharan 1a6e9d0f2e ath9k: Send legacy rated frames as unaggregated
Currently the aggregation is formed till the aggregation limit
is reached and the rate lookup is done for the first frame alone.
But there can be a legacy rated frames in tid queue. This patch
limits the subframe addition based on presence of legacy rate and
sends the legacy rated frames as unaggregated one.

Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-26 10:47:55 -04:00
Rafał Miłecki df766267c8 b43: drop Kconfig option of forcing PIO mode
We have module param called use_pio which is much easier to use.

Cc: Larry Finger <larry.finger@lwfinger.net>
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-26 10:47:55 -04:00
Francois Romieu cd29678036 sunbmac: use standard #defines from mii.h.
Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
2011-08-25 11:08:21 +02:00
Francois Romieu 78f6a6bd89 dl2k: use standard #defines from mii.h.
Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
2011-08-25 11:08:16 +02:00
Sathya Perla 15133fbbb9 be2net: remove unused variable
Signed-off-by: Sathya Perla <sathya.perla@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-24 16:19:29 -07:00
Sathya Perla e2edb7d51f be2net: increase FW update completion timeout
Flashing some of the PHYs can take longer thus increasing the total flash
update time to a max of 40s.

Signed-off-by: Sathya Perla <sathya.perla@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-24 16:19:29 -07:00
Sathya Perla 09c1c68f22 be2net: fix erx->rx_drops_no_frags wrap around
The rx_drops_no_frags HW counter for RSS rings is 16bits in HW and can
wraparound often. Maintain a 32-bit accumulator in the driver to prevent
frequent wraparound.

Also, incorporated Eric's feedback to use ACCESS_ONCE() for the accumulator
write.

Signed-off-by: Sathya Perla <sathya.perla@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-24 16:19:29 -07:00
Sathya Perla db3ea7819d be2net: get rid of memory mapped pci-cfg space address
Get rid of adapter->pcicfg and its use. Use pci_config_read/write_dword()
instead.

Signed-off-by: Sathya Perla <sathya.perla@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-24 16:19:29 -07:00
Sathya Perla 857c99059e be2net: Fix race in posting rx buffers.
There is a possibility of be_post_rx_frags() being called simultaneously from
both be_worker() (when rx_post_starved) and be_poll_rx() (when rxq->used is 0).
This can be avoided by posting rx buffers only when some completions have been
reaped.

Signed-off-by: Sathya Perla <sathya.perla@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-24 16:19:28 -07:00
Amitkumar Karwar 25232490af libertas: update readme file
Since all wext specific code is removed, currently there is no
way to configure deep sleep mode. This patch removes deep sleep
configuration information in readme file.

Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-24 14:57:21 -04:00
Larry Finger 5b62bb5cc1 rtlwifi: rtl8192de: Convert to use the new rate-mapping routine in rtlwifi
This patch also deletes the now unused parts of rtl8192de/def.h.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Chaoming Li <chaoming_li@realsil.com.cn>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-24 14:57:21 -04:00
Larry Finger 8e35337731 rtlwifi: rtl8192se: Convert to use the new rate-mapping routine in rtlwifi
This patch also deletes the now unused parts of rtl8192se/def.h.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Chaoming Li <chaoming_li@realsil.com.cn>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-24 14:57:20 -04:00
Larry Finger 2b67e88f64 rtlwifi: rtl8192cu: Convert to use the new rate-mapping routine in rtlwifi
This patch also removes the now unused code from rtl8192ce/def.h.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Chaoming Li <chaoming_li@realsil.com.cn>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-24 14:57:19 -04:00
Larry Finger 78851b66b1 rtlwifi: rtl8192ce: Convert to use the new rate-mapping routine in rtlwifi
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Chaoming Li <chaoming_li@realsil.com.cn>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-24 14:57:19 -04:00
Larry Finger 7ad0ce3576 rtlwifi: Install updated rate-mapping routine
In preparation for fixing the rate-mapping situation, place a driver-agnostic
version in rtlwifi. This one contains the updated rate incormation.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Chaoming Li <chaoming_li@realsil.com.cn>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-24 14:57:18 -04:00
Julia Lawall f750323009 drivers/net/wireless/mwifiex/scan.c: test the just-initialized value
Test the just-initialized value rather than some other one.

The semantic match that finds this problem is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@r@
identifier x,y,f!={PTR_ERR,ERR_PTR,ERR_CAST};
statement S;
@@

x = f(...);
(
if (\(x == NULL\|IS_ERR(x)\)) S
|
*if (\(y == NULL\|IS_ERR(y)\))
 { ... when != x
   return ...; }
)
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Acked-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-24 14:57:17 -04:00
Michael Büsch 8b0be90c4d b43/legacy: Remove firmware IDs
This removes the "FWxx" ID strings from the b43 and b43legacy
drivers. They were once used to match a specific driver revision
to a set of firmware files. However, this is hardly useful today.
Additionally, the IDs are not updated and maintained properly, so
they might mislead users.

Signed-off-by: Michael Buesch <m@bues.ch>
Acked-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-24 14:57:17 -04:00
Rajkumar Manoharan 8ad38d22dc ath9k_hw: Disable Walsh spatial spreading for 2 chains
The Walsh bit is disabled for regulatory consideration.

FCC limit for walsh enable is lower than that for walsh disable. So
disabling walsh bit will not limit tx power/affect tx power even in
cases where we are not FCC limited (most client cards). If the tx
power is not FCC limited, then enabling/disabling walsh bit will
not affect Avg. EVM/overall performance in any visible manner.

Cc: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-24 14:57:16 -04:00
Rajkumar Manoharan a35e278022 ath9k: Change rate control to use legacy rate as last MRR
In congested network, having all rate reties at MCS rates
is failing to transmit the frame offenly. By the time reaching
the success rate set, the application gets timed out. One such
scenario is that authentication time out during 4-Way handshake.
This patch uses a legacy rate as last retry sequnce for
unaggregated frames or if the first selected rate's PER is ~80%
of max limit. And also observed from the tx status that the frame
was trasmitted successfully by using legacy rates.

Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-24 14:57:15 -04:00
Rajkumar Manoharan 2a15b394f8 ath9k_hw: Fix descriptor status of TxOpExceeded
Cc: stable@kernel.org
Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-24 14:57:15 -04:00
Mohammed Shafi Shajakhan 52c94f413f ath9k: Add support for get_stats callback
this useful for debugging and to keep track of success/failure of
frames such as ACK, RTS and FCS error count in a noisy environment

Signed-off-by: Mohammed Shafi Shajakhan <mohammed@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-24 14:57:14 -04:00
Christian Lamparter 0d78156eef p54: improve site survey
The firmware keeps track of channel usage. This data can
be used by the automatic channel selection to find the best
channel.

Survey data from wlan4
	frequency:				5200 MHz [in use]
	noise:					-91 dBm
	channel active time:			811909 ms
	channel busy time:			63395 ms
	channel transmit time:			59636 ms
Survey data from wlan4
	frequency:				5210 MHz
	noise:					-91 dBm
	channel active time:			121 ms
	channel busy time:			119 ms
	channel transmit time:			0 ms

Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-24 14:57:13 -04:00
Samuel Ortiz e8753043f9 NFC: Reserve tx head and tail room
We can have the NFC core layer allocating the tx head and tail
room for the drivers and avoid 1 or more SKBs copy on write on
the Tx path.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-24 14:41:44 -04:00
Dan Carpenter 4e0d8cc100 bcma: signedness bug in bcma_get_next_core()
The u32 would never be less than zero so the error handling would
break.  I changed it to s32 to match how bcma_erom_get_mst_port() is
declared.

Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-24 14:41:44 -04:00
Bill Jordan 152e585dc9 ath9k: fix MGMT packets when using TKIP
Prevent 8 bytes from being truncated from MGMT packets
when using TKIP.

Signed-off-by: Bill Jordan <bjordan@rajant.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-24 14:41:43 -04:00
Rafał Miłecki cbe1e82a54 b43: warn when forcing PIO mode
We have resolved all the known issues with DMA mode, however some users
(or distros) are still forcing PIO mode by config files. Without
debugging enabled it's not noticable at all. Add the warning for them.

Cc: Gregory Bellier <gregory.bellier@gmail.com>
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Acked-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-24 14:41:43 -04:00
Alex Hacker 9489902515 ath9k_hw: fix EIFS value to microseconds
The EIFS value read from AR_D_GBL_IFS_EIFS register in core clocks and then
written back as microsecond value.

Signed-off-by: Alex Hacker <hacker@epn.ru>
Acked-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-24 14:41:43 -04:00
Rafał Miłecki dc713fb2af b43: LCN-PHY: init 0x2064 radio
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-24 14:41:43 -04:00
Rafał Miłecki 78bc2463af b43: LCN-PHY: basic PHY init
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-24 14:41:43 -04:00
Christian Lamparter 00044f17af carl9170: export HW random number generator
All AR9170 hardware have a 16-Bit random number generator.
The documentation claims the values are suitable for
"security keys".

The "throughput" is around 320Kibit/s. It's slow, but it
does work without introducing any special offload
firmware commands.

Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-24 14:41:42 -04:00
Christian Lamparter acf1771221 carl9170: improve site survey
The firmware keeps track of channel usage. This data can
be used by the automatic channel selection to find the
*best* channel.

Survey data from wlan22
	frequency:                      2412 MHz [in use]
	noise:                          -86 dBm
	channel active time:            3339608 ms
	channel busy time:              270982 ms
	channel transmit time:          121515 ms
Survey data from wlan22
	frequency:                      2417 MHz
	noise:                          -86 dBm
	channel active time:            70 ms
	channel busy time:              2 ms
	channel transmit time:          1 ms

Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-24 14:41:42 -04:00
Christian Lamparter f5e2289a14 carl9170: import updated firmware headers
Import new headers from our firmware branch:
git://git.kernel.org/pub/scm/linux/kernel/git/chr/carl9170fw.git

Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-24 14:41:42 -04:00
Christian Lamparter 7ccc83b0fc carl9170: fix timekeeping for HW_COUNTER firmwares
AR9170_PWR_REG_PLL_ADDAC is used to set the main clock
divisor which affects the AHB/CPU speed. Because this
would interfere with the firmware internal timekeeping,
the function has to be moved into the firmware.

Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-24 14:41:42 -04:00
Dan Carpenter bfe2ed8f4d libertas: handle mesh networks in lbs_iface_active()
There was an extra semicolon so the if condition wasn't used.  We
checked "priv->dev" twice instead of "priv->mesh_dev".

Signed-off-by: Dan Carpenter <error27@gmail.com>
Acked-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-24 14:41:42 -04:00
Rafał Miłecki ba2d00e816 b43: LCN-PHY: add init tables
They were taken from MMIO dump with few RegExps and vim.

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-24 14:41:42 -04:00
Rafał Miłecki 7ed8852888 b43: LCN-PHY: switch analog
Analog is switched on right after reading PHY version:
 read16 0xfaafc3e0 -> 0xa801
 phy_read(0x043b) -> 0x0000
phy_write(0x043b) <- 0x0000
Switched off after after killing radio:
>>> Switch Radio(OFF) end
 phy_read(0x043c) -> 0x0000
phy_write(0x043c) <- 0x0007
 phy_read(0x043b) -> 0x0000
phy_write(0x043b) <- 0x0007

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-24 14:41:41 -04:00
Rafał Miłecki ba356b569f b43: LCN-PHY: implement disabling radio
wl reads radio version, then disables it. That's how we found it in MMIO
dump:
 radio_read(0x0000) -> 0x0031 <-- RADIO READ WITHOUT 0x200 SET!
 radio_read(0x0001) -> 0x0064 <-- RADIO READ WITHOUT 0x200 SET!
 radio_read(0x0002) -> 0x0020 <-- RADIO READ WITHOUT 0x200 SET!
 read32 0xfaafc120 -> 0x04000400
 phy_read(0x044d) -> 0x0000
phy_write(0x044d) <- 0x0000
 phy_read(0x044c) -> 0x1fff
phy_write(0x044c) <- 0x1fff
 phy_read(0x04b7) -> 0x0000
phy_write(0x04b7) <- 0x0000
 phy_read(0x04b1) -> 0x0000
phy_write(0x04b1) <- 0x0000
 phy_read(0x04b0) -> 0x7dff
phy_write(0x04b0) <- 0x7dff
 phy_read(0x04fa) -> 0x0000
phy_write(0x04fa) <- 0x0000
 phy_read(0x04f9) -> 0x007f
phy_write(0x04f9) <- 0x007f

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-24 14:41:41 -04:00
Rafał Miłecki f928668f2d b43: LCN-PHY: add very basic PHY ops
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-24 14:41:41 -04:00
Rafał Miłecki 0cc9772a6b b43: fix DMA on some bugged hardware
Some hardware with 64-bit DMA uses lower address word for setting
routing (translation) bit. Add workaround for such boards.

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-24 14:41:41 -04:00
Rafał Miłecki 04023afcce ssb: fix DMA translation for some specific boards
Signed-off-by: Michael Buesch <m@bues.ch>
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-24 14:41:41 -04:00
Felix Fietkau 292121dce2 ath9k: remove a bogus WARN_ON
On embedded hardware it's normal to not have a PCI device for the PCI
bridge that the wifi card is attached to. pdev->bus->self will be
NULL in that case. In that case, simply return without emitting an
useless kernel stack trace.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-24 14:05:19 -04:00
Rajkumar Manoharan d069a46be8 ath9k: Dump modal noisefloor calibration history
Debugfs file location:
<debugfs_mnt>/ieee80211/phy#/ath9k/dump_nfcal

Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-24 13:59:46 -04:00
Rajkumar Manoharan e338a85e21 ath9k: Fix invalid noisefloor reading due to channel update
While switching b/w HT20/40, the current channel's nf values
are updated into history buffer. Since the current channel's
channel type, channel flag got updated before reading
nf value from hw. This channel type mismatch is causing invalid
readings when hw is on ht20 but getnf tries to read on extn chains.

Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-24 13:59:46 -04:00
Rajkumar Manoharan 6b3d348681 ath9k: Fix noisefloor history update for extn chains
Before doing hw reset the current channel's noisefloor readings
are updated into history buffer. The extension chain's readings
are considered only if the current channel was configured in HT40.
While moving from HT40 to HT20, the extn chain's readings are
skipped though the current channel is in ht40. This patch updates
extn chain reading based on channel flag.

Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-24 13:59:46 -04:00
Rajkumar Manoharan f82b4bde17 ath9k: Move ath9k_init_crypto to common
Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-24 13:59:45 -04:00
Rajkumar Manoharan d77bf3eb51 ath9k: Remove SC_OP_ENABLE_APM
Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-24 13:59:45 -04:00
Rajkumar Manoharan 56266bff6d ath9k_hw: Remove unnecessary chainmask configuration
The chainmasks were already configured at process_ini
before doing init calibration.

Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-24 13:59:45 -04:00
Rajkumar Manoharan 479c68927a ath9k: qinfo never be NULL in setuptxqueue
Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-24 13:59:45 -04:00
Rajkumar Manoharan 3de2111697 ath9k: Remove unused argument tsf from ath9k_hw_rxprocdesc
Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-24 13:59:44 -04:00
Rajkumar Manoharan 29ab0b3632 ath9k: Re-enable RXOEL interrupt after processing rx buffers
Once RXEOL was disabled, it never be enabled again. This patch
re-enables rxeol at the end of rx tasklet.

Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-24 13:59:44 -04:00
Rajkumar Manoharan 0682c9b52b ath9k: Fix rx overrun interrupt storm
Whenever RXEOL is received, both RXORN and RXEOL got cleared
to avoid rx overrun interrupt storm. This was handled only for
edma chips. The same scenario was also observered with AR9280,
doing frequent channel type switch b/w HT20/40 with bidi traffic
that is causing failure to stop rx dma. This patch clears
the RXEOL & RXORN interrupts for all chips.

ath: DMA failed to stop in 10 ms AR_CR=0x00000024 AR_DIAG_SW=0x42000020
DMADBG_7=0x000062c0
ath: Could not stop RX, we could be confusing the DMA engine when we
start RX up
------------[ cut here ]------------
WARNING: at drivers/net/wireless/ath/ath9k/recv.c:532
ath_stoprecv+0x110/0x120 [ath9k]()
Call Trace:
 [<ffffffff8104a55a>] warn_slowpath_common+0x7a/0xb0
 [<ffffffff8104a5a5>] warn_slowpath_null+0x15/0x20
 [<ffffffffa0560380>] ath_stoprecv+0x110/0x120 [ath9k]
 [<ffffffffa055e6fa>] ath_reset+0x6a/0x200 [ath9k]

Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-24 13:59:44 -04:00
Rajkumar Manoharan 7a12dfdbf5 ath9k_hw: Fix exceed transmission burst-time of 5GHz
The WAR which adds extra delimiters when using RTS/CTS
with aggregation and non-enterprise AR9003 chips.
This extra padding is done after doing all the 4ms limit
checks and hence the total aggregate sizes are exceeding
the allowed duration. This patch limits the aggregate
sizes appropriately after including these extra delimiters.

Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-24 13:59:44 -04:00
Rafał Miłecki 87a8c8cb20 b43: HT-PHY: allow writing longer tables with a single call
Sometimes we need to write table which is 2-10 elements long. It's
easier to create such a function instead of defining array every time.

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-23 16:14:19 -04:00
David S. Miller 7ae9ed8d32 Merge branch 'for-davem' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next 2011-08-22 14:47:43 -07:00
Rafał Miłecki 98f8dc72ac b43: HT-PHY: init: add missing small-tables writes
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-22 14:46:02 -04:00
Stefan Assmann b5be7e4c8f rtlwifi: add module parameter to set global debug level
No need to recompile the module anymore to set the debug level.

Signed-off-by: Stefan Assmann <sassmann@kpanic.de>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-22 14:46:01 -04:00
Rafał Miłecki a4042bb093 b43: HT-PHY: init: add some AFE (Analog Frontend) operation
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-22 14:46:01 -04:00
Rafał Miłecki 357e24d2d0 b43: HT-PHY: init: add missing PHY mask/set ops
MMIO hacks were used to trick ndis&wl. For example following:
 phy_read(0x0280) -> 0xffff
phy_write(0x0280) <- 0xff3e
***
 phy_read(0x0280) -> 0x0000
phy_write(0x0280) <- 0x003e
was translated to mask 0xff00 and set 0x3e.

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-22 14:46:01 -04:00
Rafał Miłecki b50583484a b43: HT-PHY: init: init BPHY and upload 0x1a table
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-22 14:46:01 -04:00
Rafał Miłecki 19240f36cf b43: HT-PHY: init: copy tables and reset CCA
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-22 14:46:01 -04:00
Rafał Miłecki f457f1842d b43: HT-PHY: init: implement few simple PHY writes
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-22 14:46:01 -04:00
Rafał Miłecki 15222b582d b43: HT-PHY: init: zero EXTG registers
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-22 14:46:00 -04:00
Nishant Sarmukadam a63d7e67fc mwl8k: Traffic to clients gets affected when one client leaves a cyrpto bss
When a client disassociates from a crypto enabled bss, data traffic to
other clients connected to the bss is stalled. This was due to a boolean
variable used to keep track if HW crypto is enabled i.e. if set key has
been called to add a key.  This flag was being reset every time delete
key was called e.g when a station leaves the bss. Once the flag is
reset, rx status flags were not being set for connected clients which
disrupts traffic to these clients. Fix this issue by not resetting the
flag since we do not need to reset this flag during the life time of the
bss.

Signed-off-by: Nishant Sarmukadam <nishants@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-22 14:46:00 -04:00
Rafał Miłecki f6a3e99da8 b43: make forcing clock common (HT-PHY also uses that)
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-22 14:45:59 -04:00
Rafał Miłecki 6a461c23e7 b43: include HT-PHY in some common code
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-22 14:45:59 -04:00
Rafał Miłecki 984e5befba bcma: implement BCM4331 workaround for external PA lines
We need to disable ext. PA lines for reading SPROM. It's disabled by
default, but this patch allows using bcma after loading wl, which leaves
workaround enabled.

Cc: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-22 14:45:59 -04:00
Rafał Miłecki 17030f48e3 b43: support new RX header, noticed to be used in 598.314+ fw
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-22 14:45:59 -04:00
Rafał Miłecki 5d85290556 b43: support new TX header, noticed to be used by 598.314+ fw
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-22 14:45:58 -04:00
Rafał Miłecki efe0249b0f b43: use enum for firmware header format
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-22 14:45:58 -04:00
Rafał Miłecki 2391b7e8d4 b43: rename TX header formats
Replace "old" and "new" with number of the first firmware known to use
the given format.

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-22 14:45:58 -04:00
Felix Fietkau 2a190322d4 b43: reload phy and bss settings after core restarts
b43_op_config and b43_op_bss_info_changed apply many settings by directly
writing to hardware registers. These settings are lost as soon as the core
is restarted and the initvals are reloaded. This was discovered because
restarting hostapd led to the beacon interval getting set to ~33s (see
https://dev.openwrt.org/ticket/8033 for more information).

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-22 14:45:57 -04:00
Stanislaw Gruszka 69ce674bfa ath9k: do btcoex ASPM disabling at initialization time
Disable ASPM in pci ->probe on upstream (device) and downstream
(PCIe port) component. According to e1000e driver authors this is
required. I did not find that requirement in PCIe spec, but it seems
to be logical for me.

This need to be fixed for CONFIG_PCIEASPM, that will be done later ...

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-22 14:45:57 -04:00
Stanislaw Gruszka 3b9cf1be8c ath9k: merge common ->config_pci_powersave() checks
Move common checks into wrapper function. Since ASPM can be only enabled
on PCIe devices ->is_pciexpress check is unneeded.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-22 14:45:57 -04:00
Stanislaw Gruszka 84c87dc86e ath9k: remove ->config_pci_powersave() redundant argument
We always call ->config_pci_powersave() with both restore and power_off
arguments equal to 0 or both equal to 1, so merge them into one
argument.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-22 14:45:57 -04:00
Jesper Juhl c8d755b59a net/wan/hdlc_ppp: use break in switch
We'll either hit one of the case labels or the default in the switch
and in all cases do we then 'goto out' and we also have a 'goto out'
after the switch that is redundant. Change to just use break in the
case statements and leave the 'goto out' after the lop for everyone to
hit.

Signed-off-by: Jesper Juhl <jj@chaosbits.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-22 11:30:38 -07:00
John W. Linville b38d355eaa Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next into for-davem
Conflicts:
	drivers/staging/ath6kl/miscdrv/ar3kps/ar3kpsparser.c
	drivers/staging/ath6kl/os/linux/ar6000_drv.c
2011-08-22 14:28:50 -04:00
David S. Miller ca1ba7caa6 Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/jkirsher/net-next
Conflicts:
	drivers/net/ethernet/intel/e1000e/netdev.c
2011-08-20 17:25:36 -07:00
Vladimir Zapolskiy 2e025c71ce dm9000: define debug level as a module parameter
This change allows to get driver specific debug messages output
providing a module parameter. As far as the maximum level of verbosity
is too high, it is demoted by default.

Signed-off-by: Vladimir Zapolskiy <vz@mleia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-20 14:15:55 -07:00