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901db39c |
| 08-Nov-2011 |
Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com> |
ath6kl: Fix packet drop when ath6kl_cookie runs out "ath6kl: Maintain virtual interface in a list" mistakenly stops the netq only when the mode is ibss. This causes packet drops in sta m
ath6kl: Fix packet drop when ath6kl_cookie runs out "ath6kl: Maintain virtual interface in a list" mistakenly stops the netq only when the mode is ibss. This causes packet drops in sta mode when the available cookies (buffer abstraction in ath6kl and also used for tx throttling) runs out for the highest priority traffic. This patch just fixes this regression though the original code may still need fixes which can be addressed in separate patches. Reported-by: Kalle Valo <kvalo@qca.qualcomm.com> Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
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Revision tags: v3.2-rc1 |
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#
f3803eb2 |
| 07-Nov-2011 |
Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com> |
ath6kl: Fix accessing wrong skb->data in ath6kl_tx_complete() When buffer alignmnet is applied, the data pointer of skb taken from cookie will no longer point to the first byte of the ac
ath6kl: Fix accessing wrong skb->data in ath6kl_tx_complete() When buffer alignmnet is applied, the data pointer of skb taken from cookie will no longer point to the first byte of the actual data. But the skb->data pointer is used in ath6kl_tx_complete() to get the index of the virtual interface which will not give the correct interface index and sometimes may give the following WARN_ON() message. Use packet->buf instead of skb->data to fix this. WARNING: at drivers/net/wireless/ath/ath6kl/wmi.c:88 ath6kl_get_vif_by_index+0x5b/0x60 [ath6kl]() Hardware name: 2842K3U Modules linked in: ath6kl mmc_block cfg80211 binfmt_misc ppdev nfs nfsd lockd nfs_acl auth_rpcgss sunrpc exportfs snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_intel +snd_hda_codec snd_hwdep snd_pcm_oss snd_mixer_oss snd_pcm snd_seq_dummy thinkpad_acpi snd_seq_oss snd_seq_midi snd_rawmidi joydev fbcon tileblit font bitblit softcursor +snd_seq_midi_event snd_seq snd_timer snd_seq_device i915 uvcvideo drm_kms_helper drm psmouse serio_raw snd i2c_algo_bit sdhci_pci videodev intel_agp soundcore intel_gtt jmb38x_ms +memstick sdhci snd_page_alloc nvram lp parport agpgart video ahci r8169 mii libahci [last unloaded: ath6kl] Pid: 15482, comm: kworker/u:1 Tainted: G W 3.1.0-rc10-wl+ #2 Call Trace: [<c0144d72>] warn_slowpath_common+0x72/0xa0 [<fb7c94fb>] ? ath6kl_get_vif_by_index+0x5b/0x60 [ath6kl] [<fb7c94fb>] ? ath6kl_get_vif_by_index+0x5b/0x60 [ath6kl] [<c0144dc2>] warn_slowpath_null+0x22/0x30 [<fb7c94fb>] ath6kl_get_vif_by_index+0x5b/0x60 [ath6kl] [<fb7c7028>] ath6kl_tx_complete+0x128/0x4d0 [ath6kl] [<c04df920>] ? mmc_request_done+0x80/0x80 [<fb7b9e2e>] htc_tx_complete+0x5e/0x70 [ath6kl] [<c05e4cf6>] ? _raw_spin_unlock_bh+0x16/0x20 [<fb7ce588>] ? ath6kl_sdio_scatter_req_add+0x48/0x60 [ath6kl] [<fb7b9f42>] htc_async_tx_scat_complete+0xb2/0x120 [ath6kl] [<fb7ce9e7>] ath6kl_sdio_scat_rw+0x87/0x370 [ath6kl] [<c0101e12>] ? __switch_to+0xd2/0x190 [<c01397b5>] ? finish_task_switch+0x45/0xd0 [<c05e272e>] ? __schedule+0x3ae/0x8b0 [<fb7cf00a>] ath6kl_sdio_write_async_work+0x4a/0xf0 [ath6kl] [<c015d266>] process_one_work+0x116/0x3c0 [<fb7cefc0>] ? ath6kl_sdio_read_write_sync+0xb0/0xb0 [ath6kl] [<c015f5b0>] worker_thread+0x140/0x3b0 [<c015f470>] ? manage_workers+0x1f0/0x1f0 [<c0163424>] kthread+0x74/0x80 [<c01633b0>] ? kthread_worker_fn+0x160/0x160 [<c05ebdc6>] kernel_thread_helper+0x6/0x10 Reported-by: Aarthi Thiruvengadam <athiruve@qca.qualcomm.com> Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
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#
a29517ce |
| 04-Nov-2011 |
Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com> |
ath6kl: Fix tx packet drop in AP mode with bridge skb is dropped in ath6kl_data_tx() when the headroom in skb is insufficient. We hit this condition for every skb in AP mode which is
ath6kl: Fix tx packet drop in AP mode with bridge skb is dropped in ath6kl_data_tx() when the headroom in skb is insufficient. We hit this condition for every skb in AP mode which is used with bridge, so all tx packets are getting dropped when tried to send traffic to wireless client from bridge. Fix this by reallocating the headroom instead of dropping the skb when it has lesser headroom than needed. Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
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#
a918fb3c |
| 07-Nov-2011 |
Raja Mani <rmani@qca.qualcomm.com> |
ath6kl: Perform WOW resume in RX path in case of SDIO IRQ wake up The target triggers sdio data line to wake up the host when WOW pattern matches. This causes sdio irq handler is being
ath6kl: Perform WOW resume in RX path in case of SDIO IRQ wake up The target triggers sdio data line to wake up the host when WOW pattern matches. This causes sdio irq handler is being executed in the host side which internally hits ath6kl's RX path. WOW resume should happen before start processing any data from the target. So it's required to perform WOW resume in RX path. This area needs bit rework to avoid WOW resume in RX path, As of now it's fine to have this model, rework will be done later. Signed-off-by: Raja Mani <rmani@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
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#
11f6e40d |
| 01-Nov-2011 |
Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com> |
ath6kl: Fix lockdep warning The following is the lockdep warning which detects possible deadlock condition with the way ar->lock and ar->list_lock are being used. (&(&ar->
ath6kl: Fix lockdep warning The following is the lockdep warning which detects possible deadlock condition with the way ar->lock and ar->list_lock are being used. (&(&ar->lock)->rlock){+.-...}, at: [<ffffffffa0492d13>] ath6kl_indicate_tx_activity+0x83/0x110 [ath6kl] but this lock took another, SOFTIRQ-unsafe lock in the past: (&(&ar->list_lock)->rlock){+.+...} and interrupts could create inverse lock ordering between them. other info that might help us debug this: Possible interrupt unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&(&ar->list_lock)->rlock); local_irq_disable(); lock(&(&ar->lock)->rlock); lock(&(&ar->list_lock)->rlock); <Interrupt> lock(&(&ar->lock)->rlock); *** DEADLOCK *** softirqs have to be disabled when acquiring ar->list_lock to avoid the above deadlock condition. When the above warning printed the interface is still up and running without issue. Reported-by: Kalle Valo <kvalo@qca.qualcomm.com> Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
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#
778e6502 |
| 27-Oct-2011 |
Kalle Valo <kvalo@qca.qualcomm.com> |
ath6kl: don't print an error for canceled packets ath6kl_tx_complete() was printing an error when packet was canceled. That causes unnecessary errors when hardware is powered off.
ath6kl: don't print an error for canceled packets ath6kl_tx_complete() was printing an error when packet was canceled. That causes unnecessary errors when hardware is powered off. Also change the error to a warning and cleanup the message. Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
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#
990bd915 |
| 25-Oct-2011 |
Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com> |
ath6kl: Maintain virtual interface in a list This patch removes all references to ar->vif and takes vif from a list. Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qca.qualc
ath6kl: Maintain virtual interface in a list This patch removes all references to ar->vif and takes vif from a list. Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
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#
478ac027 |
| 25-Oct-2011 |
Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com> |
ath6kl: Introduce spinlock to protect vif specific information Use this spinlock to protect the vif's data instead of one from ath6kl. Signed-off-by: Vasanthakumar Thiagarajan <
ath6kl: Introduce spinlock to protect vif specific information Use this spinlock to protect the vif's data instead of one from ath6kl. Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
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#
6765d0aa |
| 25-Oct-2011 |
Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com> |
ath6kl: Use interface index from wmi data headr Interface index is passed in wmi data header as well, use it to get the corresponding vif structure. Signed-off-by: Vasanthakumar
ath6kl: Use interface index from wmi data headr Interface index is passed in wmi data header as well, use it to get the corresponding vif structure. Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
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#
28ae58dd |
| 25-Oct-2011 |
Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com> |
ath6kl: Remove net_device from ath6kl Use one which is available in vif structure instead. Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com> Signed-off-by: Ka
ath6kl: Remove net_device from ath6kl Use one which is available in vif structure instead. Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
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#
240d2799 |
| 25-Oct-2011 |
Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com> |
ath6kl: Take vif information from wmi event Interface index is passed in wmi command header from target. Use this index to get the appropriate vif. Signed-off-by: Vasanthakumar
ath6kl: Take vif information from wmi event Interface index is passed in wmi command header from target. Use this index to get the appropriate vif. Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
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#
334234b5 |
| 25-Oct-2011 |
Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com> |
ath6kl: Maintain firmware interface index in struct ath6kl_vif Pass this index to target in wmi commands to specify the interface for which the command needs to be handled. Sign
ath6kl: Maintain firmware interface index in struct ath6kl_vif Pass this index to target in wmi commands to specify the interface for which the command needs to be handled. Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
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#
b95907a7 |
| 25-Oct-2011 |
Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com> |
ath6kl: Make net and target stats vif specific Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
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#
2132c69c |
| 25-Oct-2011 |
Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com> |
ath6kl: Move aggregation information to vif structure Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
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#
f5938f24 |
| 25-Oct-2011 |
Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com> |
ath6kl: Move nw_type to vif structure Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
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#
59c98449 |
| 25-Oct-2011 |
Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com> |
ath6kl: Define interface specific states Currently ar->flag maintains interface stats. Move interface specific states from ar->flag to vif->flags. Signed-off-by: Vasanthakumar T
ath6kl: Define interface specific states Currently ar->flag maintains interface stats. Move interface specific states from ar->flag to vif->flags. Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
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Revision tags: v3.1, v3.1-rc10 |
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#
ad3f78b9 |
| 06-Oct-2011 |
Kalle Valo <kvalo@qca.qualcomm.com> |
ath6kl: fix null skb dereference in ath6kl_rx() smatch found that skb might be null in some cases in ath6kl_rx(): ath6kl/txrx.c +1252 ath6kl_rx(222) error: potential null derefence
ath6kl: fix null skb dereference in ath6kl_rx() smatch found that skb might be null in some cases in ath6kl_rx(): ath6kl/txrx.c +1252 ath6kl_rx(222) error: potential null derefence 'skb'. This will happen when ath6kl is in AP mode and two clients send traffic to each other. Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
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Revision tags: v3.1-rc9 |
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#
1555f733 |
| 30-Sep-2011 |
Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com> |
ath6kl: Fix sparse warning "symbol 'conn' shadows an earlier one" Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
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Revision tags: v3.1-rc8 |
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ef094103 |
| 27-Sep-2011 |
Kalle Valo <kvalo@qca.qualcomm.com> |
ath6kl: add prefix parameter to ath6kl_dbg_dump() Makes it easier to recognise longs dumps. Obligatory screenshot using "rx" prefix: ath6kl: ath6kl_rx rx 00000000: 10 1
ath6kl: add prefix parameter to ath6kl_dbg_dump() Makes it easier to recognise longs dumps. Obligatory screenshot using "rx" prefix: ath6kl: ath6kl_rx rx 00000000: 10 10 00 00 00 00 08 30 00 00 00 00 00 00 f9 0b .......0........ rx 00000010: 2c 44 08 30 00 00 f9 0b 0c a4 02 00 00 00 73 d2 ,D.0..........s. rx 00000020: 94 00 f9 0b 04 8c 01 00 02 00 07 02 02 00 f9 0b ................ Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
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#
00b1edf1 |
| 27-Sep-2011 |
Jouni Malinen <jouni@qca.qualcomm.com> |
ath6kl: fix TCP corruption Commit 94e532d1a ("ath6kl: Fix system freeze under heavy data load") aligns the skb data without checking if the skb is cloned. Because of this ath6kl can
ath6kl: fix TCP corruption Commit 94e532d1a ("ath6kl: Fix system freeze under heavy data load") aligns the skb data without checking if the skb is cloned. Because of this ath6kl can corrupt the local TCP stack information that can result in TCP retransmission failing and TCP connections stalling. To avoid the corruption we need to copy the skb. Now the alignment in ath6kl_htc_tx_buf_align() doesn't corrupt TCP packets anymore (and is not even used for the cloned skb's that got copied since the alignment of the data is handled at the copy time). Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
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Revision tags: v3.1-rc7 |
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#
5694f962 |
| 19-Sep-2011 |
Kalle Valo <kvalo@qca.qualcomm.com> |
ath6kl: pass only unicast frames for aggregation When pinging form ar6003 to the AP RTT was high even when power save was disabled: 100 packets transmitted, 97 received, 3% pack
ath6kl: pass only unicast frames for aggregation When pinging form ar6003 to the AP RTT was high even when power save was disabled: 100 packets transmitted, 97 received, 3% packet loss, time 99125ms rtt min/avg/max/mdev = 1.875/46.733/795.506/139.181 ms After some investigation one reason for this was that received multicast traffic confused the aggrecation logic and caused 400 ms timeouts when receiving multicast frames from AP. A simple way to fix is to pass only unicast frames for aggregation. This improves RTT: 100 packets transmitted, 99 received, 1% packet loss, time 99144ms rtt min/avg/max/mdev = 2.083/13.084/403.390/56.794 ms Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
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Revision tags: v3.1-rc6, v3.1-rc5, v3.1-rc4, v3.1-rc3 |
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#
8af123e8 |
| 22-Aug-2011 |
Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com> |
ath6kl: Remove unused meta_v2 from ath6kl_data_tx() Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
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#
94e532d1 |
| 22-Aug-2011 |
Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com> |
ath6kl: Fix system freeze under heavy data load Patch "ath6kl: Fix buffer alignment for scatter-gather write" does memmove for a length (scat_req->scat_list[i].len) which is not the
ath6kl: Fix system freeze under heavy data load Patch "ath6kl: Fix buffer alignment for scatter-gather write" does memmove for a length (scat_req->scat_list[i].len) which is not the actual length of data that is suppossed to be moved. The right lengh is packet->act_len + HTC_HDR_LENGTH. Using wrong length for data move during buffer alignment causes system freeze after the following WARN_ON and sometimes target assert. WARNING: at drivers/net/wireless/ath/ath6kl/main.c:771 ath6k_credit_distribute+0x196/0x1a0 [<ffffffffa051cf5f>] ath6kl_htc_rxmsg_pending_handler+0x83f/0xe00 [ath6kl] [<ffffffff8104a743>] ? __wake_up+0x53/0x70 [<ffffffffa0518b18>] ath6kldev_intr_bh_handler+0x188/0x650 [ath6kl] [<ffffffffa052d316>] ath6kl_sdio_irq_handler+0x36/0x80 [ath6kl] [<ffffffff81492b3c>] sdio_irq_thread+0xfc/0x360 [<ffffffff81051c52>] ? default_wake_function+0x12/0x20 [<ffffffff81492a40>] ? sdio_claim_irq+0x220/0x220 [<ffffffff81080c36>] kthread+0x96/0xa0 [<ffffffff815b9fb4>] kernel_thread_helper+0x4/0x10 [<ffffffff81080ba0>] ? kthread_worker_fn+0x190/0x190 [<ffffffff815b9fb0>] ? gs_change+0x13/0x13 Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
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#
1df94a85 |
| 17-Aug-2011 |
Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com> |
ath6kl: Fix buffer alignment for scatter-gather I/O For non-scatter buffers, there is already a bounce buffer which takes care of alignment. This patch is influenced by a rough patch of
ath6kl: Fix buffer alignment for scatter-gather I/O For non-scatter buffers, there is already a bounce buffer which takes care of alignment. This patch is influenced by a rough patch of Kalle. Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
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#
13e34ea1 |
| 16-Aug-2011 |
Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com> |
ath6kl: Fix bug in computing AMSU subframe padding This fixes AMSDU rx, otherwise it fails with the following warnings. "802.3 AMSDU frame bound check failed" Signed-off-by
ath6kl: Fix bug in computing AMSU subframe padding This fixes AMSDU rx, otherwise it fails with the following warnings. "802.3 AMSDU frame bound check failed" Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
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