Target copies spectral report and CFR report through dbring to
host for further processing. This mechanism involves ring and
buffer management in the Host, FW, and uCode, where improper
tail pointer update issues are seen.
This dbring debug support help to debug such issues by tracking
head and tail pointer movement along with the timestamp at which
each buffer is received and replenished.
Provide a debugfs interface to enalbe/disable dbring debug
support and dump the dbring debug entries.
Also introduced a new hardware param to add dbring debugfs support
for few hardwares which are using dbings.
Usage:
echo <dbr_id> <val> > /sys/kernel/debug/ath11k/ipq8074_2/
mac0/enable_dbr_debug
dbr_id: 0 for spectral and 1 for CFR
val: 0 - disable, 1 - enable.
Tested-on: IPQ8074 WLAN.HK.2.4.0.1-01467-QCAHKSWPL_SILICONZ-1
Signed-off-by: Venkateswara Naralasetty <quic_vnaralas@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/1645366059-11798-1-git-send-email-quic_vnaralas@quicinc.com
Translate HE status to radiotap format. This uses HE radiotap
definitions from include/net/ieee80211_radiotap.h.
Co-developed-by: Miles Hu <milehu@codeaurora.org>
Signed-off-by: Miles Hu <milehu@codeaurora.org>
Signed-off-by: Anilkumar Kolli <akolli@codeaurora.org>
Signed-off-by: Pradeep Kumar Chitrapu <pradeepc@codeaurora.org>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20220217012112.31211-4-pradeepc@codeaurora.org
Add new bitmasks and macro definitions required for parsing HE
status tlvs. Decode HE status tlvs, which will used in dumping
ppdu stats as well as updating radiotap headers.
Co-developed-by: Miles Hu <milehu@codeaurora.org>
Signed-off-by: Miles Hu <milehu@codeaurora.org>
Signed-off-by: Pradeep Kumar Chitrapu <pradeepc@codeaurora.org>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20220217012112.31211-3-pradeepc@codeaurora.org
This allows us to pass HE rates down into the stack.
Co-developed-by: Miles Hu <milehu@codeaurora.org>
Signed-off-by: Miles Hu <milehu@codeaurora.org>
Signed-off-by: John Crispin <john@phrozen.org>
Signed-off-by: Pradeep Kumar Chitrapu <pradeepc@codeaurora.org>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20220217012112.31211-2-pradeepc@codeaurora.org
In some scenarios like firmware crashes during init time
and hardware gets restarted after qmi firmware ready event.
During restart, ath11k_core_qmi_firmware_ready() returns timeout.
But, this failure is not handled and ATH11K_FLAG_REGISTERED is set.
When hardware restart completed, firmware sends firmware ready event
again. Since ATH11K_FLAG_REGISTERED is already set, ath11k handles
this as core restart. Inits are not done because of previous timeout.
But ath11k_core_restart does deinit's which causes NULL pointer crash.
Fix this by handling failure from ath11k_core_qmi_firmware_ready().
Tested-on: QCN9074 hw1.0 PCI WLAN.HK.2.7.0.1-00881-QCAHKSWPL_SILICONZ-1
Signed-off-by: Seevalamuthu Mariappan <quic_seevalam@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/1645079195-13564-1-git-send-email-quic_seevalam@quicinc.com
REO2SW ring descriptor is currently allocated in cacheable memory.
While reaping reo ring entries on second trial after updating head
pointer, first entry is not invalidated before accessing it.
This results in host reaping and using cached descriptor which is
already overwritten in memory by DMA device (HW).
Since the contents of descriptor(buffer id, peer info and other information
bits) are outdated host throws errors like below while parsing corresponding
MSDU's and drops them.
[347712.048904] ath11k_pci 0004:01:00.0: msdu_done bit in attention is not set
[349173.355503] ath11k_pci 0004:01:00.0: frame rx with invalid buf_id 962
Move the try_again: label above ath11k_hal_srng_access_begin()
so that first entry will be invalidated and prefetched.
Tested-on: QCN9074 hw1.0 PCI WLAN.HK.2.5.0.1-01100-QCAHKSWPL_SILICONZ-1
Fixes: 6452f0a3d5 ("ath11k: allocate dst ring descriptors from cacheable memory")
Signed-off-by: Rameshkumar Sundaram <quic_ramess@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/1645000354-32558-1-git-send-email-quic_ramess@quicinc.com
Hardware random number generators are supposed to use the hw_random
framework. This commit turns ath9k's kthread-based design into a proper
hw_random driver.
Cc: Toke Høiland-Jørgensen <toke@redhat.com>
Cc: Kalle Valo <kvalo@kernel.org>
Cc: Rui Salvaterra <rsalvaterra@gmail.com>
Cc: Dominik Brodowski <linux@dominikbrodowski.net>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Tested-by: Rui Salvaterra <rsalvaterra@gmail.com>
Acked-by: Toke Høiland-Jørgensen <toke@toke.dk>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20220216113323.53332-1-Jason@zx2c4.com
The rddm_size is needed by firmware while mhi enter RDDM state, add it
to support recovery when ath11k receive MHI_CB_EE_RDDM message.
Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-03003-QCAHSPSWPL_V1_V2_SILICONZ_LITE-2
Signed-off-by: Wen Gong <quic_wgong@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20220209060012.32478-4-quic_wgong@quicinc.com
This is to fix m3 buffer reuse issue as m3_mem->size isn't set to
ZERO in free function, which leads invalid m3 downloading to
firmware and firmware crashed.
Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-03003-QCAHSPSWPL_V1_V2_SILICONZ_LITE-2
Signed-off-by: Carl Huang <quic_cjhuang@quicinc.com>
Signed-off-by: Wen Gong <quic_wgong@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20220209060012.32478-3-quic_wgong@quicinc.com
ath11k_qmi_free_target_mem_chunk() and ath11k_qmi_m3_free() is static
in qmi.c, they are needed for recovery, export them in a new function.
Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-03003-QCAHSPSWPL_V1_V2_SILICONZ_LITE-2
Signed-off-by: Wen Gong <quic_wgong@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20220209060012.32478-2-quic_wgong@quicinc.com
Replace zero-length array with flexible-array member and make use
of the struct_size() helper in kmalloc(). For example:
struct wcn36xx_hal_ind_msg {
struct list_head list;
size_t msg_len;
u8 msg[];
};
Make use of the struct_size() helper instead of an open-coded version
in order to avoid any potential type mistakes.
Reported-by: Zeal Robot <zealci@zte.com.cn>
Signed-off-by: Minghao Chi (CGEL ZTE) <chi.minghao@zte.com.cn>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20220208015606.1514022-1-chi.minghao@zte.com.cn
More than 20000 PPDU id jumping causing status ring and destination
ring processing not sync. The status ring is processed and the
destination ring is not processed. Since destination is not reaped for
so long, backpressure occurs at the destination ring.
To address this issue update the PPDU id with the latest PPDU, this
will allow the destination ring to be reaped and will prevent the
rings from getting out of sync.
Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.4.0.1.r1-00026-QCAHKSWPL_SILICONZ-2
Signed-off-by: Karthikeyan Kathirvel <quic_kathirve@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20220210064706.6171-1-quic_kathirve@quicinc.com
Radar detection fails in the secondary 80 MHz when the
the AP's primary 80 MHz is in non-DFS region in 160 MHz.
This is due to WMI channel flag WMI_CHAN_INFO_DFS_FREQ2 is not set
properly in case of the primary 80 MHz is in non-DFS region.
HALPHY detects the radar pulses in the secondary 80 MHz only when
WMI_CHAN_INFO_DFS_FREQ2 is set.
Fix this issue by setting WMI channel flag WMI_CHAN_INFO_DFS_FREQ2
based on the radar_enabled flag from the channel context.
Tested-on: QCN9074 hw1.0 PCI WLAN.HK.2.5.0.1-01100-QCAHKSWPL_SILICONZ-1
Signed-off-by: Venkateswara Naralasetty <quic_vnaralas@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/1644416019-820-2-git-send-email-quic_vnaralas@quicinc.com
Fix WARN_ON() from ath11k_mac_update_vif_chan() if vdev is not up.
Since change_chanctx can be called even before vdev_up from
ieee80211_start_ap->ieee80211_vif_use_channel->
ieee80211_recalc_radar_chanctx.
Do vdev stop followed by a vdev start in case of vdev is down.
Tested-on: QCN9074 hw1.0 PCI WLAN.HK.2.5.0.1-01100-QCAHKSWPL_SILICONZ-1
Signed-off-by: Venkateswara Naralasetty <quic_vnaralas@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/1644416019-820-1-git-send-email-quic_vnaralas@quicinc.com
The rate_idx which passed to ath11k_debugfs_sta_add_tx_stats() by
ath11k_dp_tx_update_txcompl() is not initialized, add initialization
for it.
Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-03003-QCAHSPSWPL_V1_V2_SILICONZ_LITE-2
Fixes: 1b8bb94c06 ("ath11k: report tx bitrate for iw wlan station dump")
Signed-off-by: Wen Gong <quic_wgong@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20220209060816.423-1-quic_wgong@quicinc.com
This code needs "channel" to be initialized to NULL for it to work
correctly.
Fixes: d6f2746691 ("wcn36xx: Track the band and channel we are tuned to")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Bryan O'Donoghue <bryan.odonghue@linaro.org>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20220201125941.GA22458@kili
These calls are used for debugging and will be required for WFA
certification tests.
Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.5.0.1-01179-QCAHKSWPL_SILICONZ-1
Signed-off-by: John Crispin <john@phrozen.org>
Signed-off-by: Aloka Dixit <alokad@codeaurora.org>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20220131031043.1295-1-alokad@codeaurora.org
Add debugfs interface "fw_dbglog_config" to configure firmware log level.
Configuration is done via WMI command WMI_DBGLOG_CFG_CMDID.
Command to configure,
echo "<dbglog_param> <values>" >
/sys/kernel/debug/ath11k/<hw>/macX/fw_dbglog_config
where dbglog_param can be,
1) WMI_DEBUG_LOG_PARAM_LOG_LEVEL - configure log level for a given module
here, <values> = <0xaaaa00bb>, 'aaaa' - module id and 'bb' - loglevel
2) WMI_DEBUG_LOG_PARAM_VDEV_ENABLE - enable debug log for a given vdev
here, <values> = vdev_id
3) WMI_DEBUG_LOG_PARAM_VDEV_DISABLE - disable debug log for a given vdev
except ERROR logs
here, <values> = vdev_id
4) WMI_DEBUG_LOG_PARAM_VDEV_ENABLE_BITMAP - set vdev enable bitmap
here, <values> = vdev_enable_bitmap
5) WMI_DEBUG_LOG_PARAM_MOD_ENABLE_BITMAP - set a given log level to all the
modules specified in the module bitmap. Command to configure for this log param,
$ echo "5 <values> <module_id_index> <is_end>" >
/sys/kernel/debug/ath11k/<hw>/macX/fw_dbglog_config
here,
<values> = <0xaaaaaaaa000000bb>, 'aaaaaaaa' - module bitmap and
'bb' - loglevel
<module_id_index> = index of module bitmap. Max module id is 512.
So, module_id_index is 0-15.
<is_end> = to indicate if more configuration to follow.
6) WMI_DEBUG_LOG_PARAM_WOW_MOD_ENABLE_BITMAP - Wow mode specific logging enable.
Command to configure for this log param,
$ echo "6 <values> <module_id_index> <is_end>" >
/sys/kernel/debug/ath11k/<hw>/macX/fw_dbglog_config
here,
<values> = <0xaaaaaaaa000000bb>, 'aaaaaaaa' - module bitmap and
'bb' - loglevel
<module_id_index> = index of module bitmap. Max module id is 512.
So, module_id_index is 0-15.
<is_end> = to indicate if more configuration to follow.
Sample command usage,
To enable module WLAN_MODULE_WMI and log level ATH11K_FW_DBGLOG_VERBOSE,
echo "1 0x10001" > /sys/kernel/debug/ath11k/<hw>/macX/fw_dbglog_config
To enable module bit map from 32 to 63 and log level ATH11K_FW_DBGLOG_VERBOSE,
echo "5 0xffffffff00000001 1 1" > /sys/kernel/debug/ath11k/<hw>/macX/fw_dbglog_config
Tested-on: QCN9074 hw1.0 PCI WLAN.HK.2.4.0.1-01734-QCAHKSWPL_SILICONZ-1
Signed-off-by: Seevalamuthu Mariappan <quic_seevalam@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/1642405103-32302-1-git-send-email-quic_seevalam@quicinc.com
Currently tx_params is being re-assigned with a new value and the
previous setting IEEE80211_HT_MCS_TX_RX_DIFF is being overwritten.
The assignment operator is incorrect, the original intent was to
bit-wise or the value in. Fix this by replacing the = operator
with |= instead.
Kudos to Christian Lamparter for suggesting the correct fix.
Fixes: fe8ee9ad80 ("carl9170: mac80211 glue and command interface")
Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Cc: <Stable@vger.kernel.org>
Acked-by: Christian Lamparter <chunkeey@gmail.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20220125004406.344422-1-colin.i.king@gmail.com
The spread of capability between the three WiFi silicon parts wcn36xx
supports is:
wcn3620 - 802.11 a/b/g
wcn3660 - 802.11 a/b/g/n
wcn3680 - 802.11 a/b/g/n/ac
We currently treat wcn3660 as wcn3620 thus limiting it to 2GHz channels.
Fix this regression by ensuring we differentiate between all three parts.
Fixes: 8490987bdb ("wcn36xx: Hook and identify RF_IRIS_WCN3680")
Cc: stable@vger.kernel.org
Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Reviewed-by: Loic Poulain <loic.poulain@linaro.org>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20220125004046.4058284-1-bryan.odonoghue@linaro.org
For the NL80211_REGDOM_SET_BY_USER hint from cfg80211, it set the new
alpha2 code to ath11k, then ath11k send WMI_SET_INIT_COUNTRY_CMDID to
firmware for all chips currently. When test with WCN6855/QCA6390 chips,
this WMI CMD leads firmware crash.
For AP based chips(ipq8074/qcn9074), WMI_SET_INIT_COUNTRY_CMDID is used
to send to firmware, for STATION based chips(WCN6855/QCA6390), it need to
use another WMI CMD WMI_SET_CURRENT_COUNTRY_CMDID.
Add flag current_cc_support in hardware parameters, it is used to
distinguish AP/STA platform. After that, the firmware will work
normal and the regulatory feature works well for QCA6390/WCN6855.
Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-01740-QCAHSTSWPLZ_V2_TO_X86-1
Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-03003-QCAHSPSWPL_V1_V2_SILICONZ_LITE-2
Signed-off-by: Wen Gong <quic_wgong@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20220119041355.32014-1-quic_wgong@quicinc.com
When station connect to AP of 6 GHz with 40 MHz bandwidth, the TX is
always stay 20 MHz, it is because the flag WMI_PEER_40MHZ is not set
while peer assoc. Add the flag if remote peer is 40 MHz bandwidth.
Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-03003-QCAHSPSWPL_V1_V2_SILICONZ_LITE-2
Fixes: c3a7d7eb4c ("ath11k: add 6 GHz params in peer assoc command")
Signed-off-by: Wen Gong <quic_wgong@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20220119034211.28622-1-quic_wgong@quicinc.com
Syzbot reported 2 KMSAN bugs in ath9k. All of them are caused by missing
field initialization.
In htc_connect_service() svc_meta_len and pad are not initialized. Based
on code it looks like in current skb there is no service data, so simply
initialize svc_meta_len to 0.
htc_issue_send() does not initialize htc_frame_hdr::control array. Based
on firmware code, it will initialize it by itself, so simply zero whole
array to make KMSAN happy
Fail logs:
BUG: KMSAN: kernel-usb-infoleak in usb_submit_urb+0x6c1/0x2aa0 drivers/usb/core/urb.c:430
usb_submit_urb+0x6c1/0x2aa0 drivers/usb/core/urb.c:430
hif_usb_send_regout drivers/net/wireless/ath/ath9k/hif_usb.c:127 [inline]
hif_usb_send+0x5f0/0x16f0 drivers/net/wireless/ath/ath9k/hif_usb.c:479
htc_issue_send drivers/net/wireless/ath/ath9k/htc_hst.c:34 [inline]
htc_connect_service+0x143e/0x1960 drivers/net/wireless/ath/ath9k/htc_hst.c:275
...
Uninit was created at:
slab_post_alloc_hook mm/slab.h:524 [inline]
slab_alloc_node mm/slub.c:3251 [inline]
__kmalloc_node_track_caller+0xe0c/0x1510 mm/slub.c:4974
kmalloc_reserve net/core/skbuff.c:354 [inline]
__alloc_skb+0x545/0xf90 net/core/skbuff.c:426
alloc_skb include/linux/skbuff.h:1126 [inline]
htc_connect_service+0x1029/0x1960 drivers/net/wireless/ath/ath9k/htc_hst.c:258
...
Bytes 4-7 of 18 are uninitialized
Memory access of size 18 starts at ffff888027377e00
BUG: KMSAN: kernel-usb-infoleak in usb_submit_urb+0x6c1/0x2aa0 drivers/usb/core/urb.c:430
usb_submit_urb+0x6c1/0x2aa0 drivers/usb/core/urb.c:430
hif_usb_send_regout drivers/net/wireless/ath/ath9k/hif_usb.c:127 [inline]
hif_usb_send+0x5f0/0x16f0 drivers/net/wireless/ath/ath9k/hif_usb.c:479
htc_issue_send drivers/net/wireless/ath/ath9k/htc_hst.c:34 [inline]
htc_connect_service+0x143e/0x1960 drivers/net/wireless/ath/ath9k/htc_hst.c:275
...
Uninit was created at:
slab_post_alloc_hook mm/slab.h:524 [inline]
slab_alloc_node mm/slub.c:3251 [inline]
__kmalloc_node_track_caller+0xe0c/0x1510 mm/slub.c:4974
kmalloc_reserve net/core/skbuff.c:354 [inline]
__alloc_skb+0x545/0xf90 net/core/skbuff.c:426
alloc_skb include/linux/skbuff.h:1126 [inline]
htc_connect_service+0x1029/0x1960 drivers/net/wireless/ath/ath9k/htc_hst.c:258
...
Bytes 16-17 of 18 are uninitialized
Memory access of size 18 starts at ffff888027377e00
Fixes: fb9987d0f7 ("ath9k_htc: Support for AR9271 chipset.")
Reported-by: syzbot+f83a1df1ed4f67e8d8ad@syzkaller.appspotmail.com
Signed-off-by: Pavel Skripkin <paskripkin@gmail.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20220115122733.11160-1-paskripkin@gmail.com
Pavel Begunkov says:
====================
udp/ipv6 optimisations
Shed some weight from udp/ipv6. Zerocopy benchmarks over dummy showed
~5% tx/s improvement, should be similar for small payload non-zc
cases.
The performance comes from killing 4 atomics and a couple of big struct
memcpy/memset. 1/10 removes a pair of atomics on dst refcounting for
cork->skb setup, 9/10 saves another pair on cork init. 5/10 and 8/10
kill extra 88B memset and memcpy respectively.
====================
Link: https://lore.kernel.org/r/cover.1643243772.git.asml.silence@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Inline a part of ipv6_fixup_options() to avoid extra overhead on
function call if opt is NULL.
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
udpv6_sendmsg() doesn't need dst after calling ip6_make_skb(), so
instead of taking an additional reference inside ip6_setup_cork()
and releasing the initial one afterwards, we can hand over a reference
into ip6_make_skb() saving two atomics. The only other user of
ip6_setup_cork() is ip6_append_data() and it requires an extra
dst_hold().
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
udpv6_sendmsg() first initialises an on-stack 88B struct flowi6 and then
copies it into cork, which is expensive. Avoid the copy in corkless case
by initialising on-stack cork->fl directly.
The main part is a couple of lines under !corkreq check. The rest
converts fl6 variable to be a pointer.
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Another preparation patch. inet_cork_full already contains a field for
iflow, so we can avoid passing a separate struct iflow6 into
__ip6_append_data() and ip6_make_skb(), and use the flow stored in
inet_cork_full. Make sure callers set cork->fl, i.e. we init it in
ip6_append_data() and before calling ip6_make_skb().
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Convert a struct inet_cork argument in __ip6_append_data() to struct
inet_cork_full. As one struct contains another inet_cork is still can
be accessed via ->base field. It's a preparation patch making further
changes a bit cleaner.
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
It doesn't appear there is any reason for ip6_cork_release() to zero
cork->fl, it'll be fully filled on next initialisation. This 88 bytes
memset accounts to 0.3-0.5% of total CPU cycles.
It's also needed in following patches and allows to remove an extar flow
copy in udp_v6_push_pending_frames().
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Clean up ip6_setup_cork() and ip6_cork_release() adding a local variable
for v6_cork->opt. It's a preparation patch for further changes.
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
ipv6_push_nfrag_opts() doesn't change passed daddr, and so
__ip6_make_skb() doesn't actually need to keep an on-stack copy of
fl6->daddr. Set initially final_dst to fl6->daddr,
ipv6_push_nfrag_opts() will override it if needed, and get rid of extra
copies.
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Corked AF_INET for ipv6 socket doesn't appear to be the hottest case,
so move it out of the common path under up->pending check to remove
overhead.
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
__ip6_make_skb() gets a cork->dst ref, hands it over to skb and shortly
after puts cork->dst. Save two atomics by stealing it without extra
referencing, ip6_cork_release() handles NULL cork->dst.
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Ido Schimmel says:
====================
mlxsw: Various updates
This patchset contains miscellaneous updates for mlxsw. No user visible
changes that I am aware of.
Patches #1-#5 rework registration of internal traps in preparation of
line cards support.
Patch #6 improves driver resilience against a misbehaving device.
Patch #7 prevents the driver from overwriting device internal actions.
See the commit message for more details.
====================
Link: https://lore.kernel.org/r/20220127090226.283442-1-idosch@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
In Spectrum-2 and later ASICs, each TCAM region has a default action
that is executed in case a packet did not match any rule in the region.
The location of the action in the database (KVDL) is computed by adding
the region's index to a base value.
Some TCAM regions are not exposed to the host and used internally by the
device. Allocate KVDL entries for the default actions of these regions
to avoid the host from overwriting them.
With mlxsw, lookups in the internal regions are not currently performed,
but it is a good practice not to overwrite their default actions.
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: Petr Machata <petrm@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
