eth: bnxt: fix counting packets discarded due to OOM and netpoll

[ Upstream commit 730117730709992c9f6535dd7b47638ee561ec45 ]

I added OOM and netpoll discard counters, naively assuming that
the cpr

eth: bnxt: fix counting packets discarded due to OOM and netpoll

[ Upstream commit 730117730709992c9f6535dd7b47638ee561ec45 ]

I added OOM and netpoll discard counters, naively assuming that
the cpr pointer is pointing to a common completion ring.
Turns out that is usually *a* completion ring but not *the*
completion ring which bnapi->cp_ring points to. bnapi->cp_ring
is where the stats are read from, so we end up reporting 0
thru ethtool -S and qstat even though the drop events have happened.
Make 100% sure we're recording statistics in the correct structure.

Fixes: 907fd4a294db ("bnxt: count discards due to memory allocation errors")
Reviewed-by: Michael Chan <michael.chan@broadcom.com>
Link: https://lore.kernel.org/r/20240424002148.3937059-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

show more ...

bnxt_en: Fix the PCI-AER routines

[ Upstream commit a1acdc226baec331512f815d6ac9dd6f8435cc7f ]

We do not support two simultaneous recoveries so check for reset
flag, BNXT_STATE_IN_FW_RESET, and do

bnxt_en: Fix the PCI-AER routines

[ Upstream commit a1acdc226baec331512f815d6ac9dd6f8435cc7f ]

We do not support two simultaneous recoveries so check for reset
flag, BNXT_STATE_IN_FW_RESET, and do not proceed with AER further.
When the pci channel state is pci_channel_io_frozen, the PCIe link
can not be trusted so we disable the traffic immediately and stop
BAR access by calling bnxt_fw_fatal_close(). BAR access after
AER fatal error can cause an NMI.

Fixes: f75d9a0aa967 ("bnxt_en: Re-write PCI BARs after PCI fatal error.")
Signed-off-by: Vikas Gupta <vikas.gupta@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>

show more ...

bnxt_en: refactor reset close code

[ Upstream commit 7474b1c82be3780692d537d331f9aa7fc1e5a368 ]

Introduce bnxt_fw_fatal_close() API which can be used
to stop data path and disable device when firmw

bnxt_en: refactor reset close code

[ Upstream commit 7474b1c82be3780692d537d331f9aa7fc1e5a368 ]

Introduce bnxt_fw_fatal_close() API which can be used
to stop data path and disable device when firmware
is in fatal state.

Signed-off-by: Vikas Gupta <vikas.gupta@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Stable-dep-of: a1acdc226bae ("bnxt_en: Fix the PCI-AER routines")
Signed-off-by: Sasha Levin <sashal@kernel.org>

show more ...

bnxt_en: Reset PTP tx_avail after possible firmware reset

[ Upstream commit faa12ca245585379d612736a4b5e98e88481ea59 ]

It is possible that during error recovery and firmware reset,
there is a pendi

bnxt_en: Reset PTP tx_avail after possible firmware reset

[ Upstream commit faa12ca245585379d612736a4b5e98e88481ea59 ]

It is possible that during error recovery and firmware reset,
there is a pending TX PTP packet waiting for the timestamp.
We need to reset this condition so that after recovery, the
tx_avail count for PTP is reset back to the initial value.
Otherwise, we may not accept any PTP TX timestamps after
recovery.

Fixes: 118612d519d8 ("bnxt_en: Add PTP clock APIs, ioctls, and ethtool methods")
Reviewed-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
Signed-off-by: Pavan Chebbi <pavan.chebbi@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>

show more ...

eth: bnxt: fix counting packets discarded due to OOM and netpoll

[ Upstream commit 730117730709992c9f6535dd7b47638ee561ec45 ]

I added OOM and netpoll discard counters, naively assuming that
the cpr

eth: bnxt: fix counting packets discarded due to OOM and netpoll

[ Upstream commit 730117730709992c9f6535dd7b47638ee561ec45 ]

I added OOM and netpoll discard counters, naively assuming that
the cpr pointer is pointing to a common completion ring.
Turns out that is usually *a* completion ring but not *the*
completion ring which bnapi->cp_ring points to. bnapi->cp_ring
is where the stats are read from, so we end up reporting 0
thru ethtool -S and qstat even though the drop events have happened.
Make 100% sure we're recording statistics in the correct structure.

Fixes: 907fd4a294db ("bnxt: count discards due to memory allocation errors")
Reviewed-by: Michael Chan <michael.chan@broadcom.com>
Link: https://lore.kernel.org/r/20240424002148.3937059-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

show more ...

bnxt_en: Fix the PCI-AER routines

[ Upstream commit a1acdc226baec331512f815d6ac9dd6f8435cc7f ]

We do not support two simultaneous recoveries so check for reset
flag, BNXT_STATE_IN_FW_RESET, and do

bnxt_en: Fix the PCI-AER routines

[ Upstream commit a1acdc226baec331512f815d6ac9dd6f8435cc7f ]

We do not support two simultaneous recoveries so check for reset
flag, BNXT_STATE_IN_FW_RESET, and do not proceed with AER further.
When the pci channel state is pci_channel_io_frozen, the PCIe link
can not be trusted so we disable the traffic immediately and stop
BAR access by calling bnxt_fw_fatal_close(). BAR access after
AER fatal error can cause an NMI.

Fixes: f75d9a0aa967 ("bnxt_en: Re-write PCI BARs after PCI fatal error.")
Signed-off-by: Vikas Gupta <vikas.gupta@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>

show more ...

bnxt_en: refactor reset close code

[ Upstream commit 7474b1c82be3780692d537d331f9aa7fc1e5a368 ]

Introduce bnxt_fw_fatal_close() API which can be used
to stop data path and disable device when firmw

bnxt_en: refactor reset close code

[ Upstream commit 7474b1c82be3780692d537d331f9aa7fc1e5a368 ]

Introduce bnxt_fw_fatal_close() API which can be used
to stop data path and disable device when firmware
is in fatal state.

Signed-off-by: Vikas Gupta <vikas.gupta@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Stable-dep-of: a1acdc226bae ("bnxt_en: Fix the PCI-AER routines")
Signed-off-by: Sasha Levin <sashal@kernel.org>

show more ...

bnxt_en: Reset PTP tx_avail after possible firmware reset

[ Upstream commit faa12ca245585379d612736a4b5e98e88481ea59 ]

It is possible that during error recovery and firmware reset,
there is a pendi

bnxt_en: Reset PTP tx_avail after possible firmware reset

[ Upstream commit faa12ca245585379d612736a4b5e98e88481ea59 ]

It is possible that during error recovery and firmware reset,
there is a pending TX PTP packet waiting for the timestamp.
We need to reset this condition so that after recovery, the
tx_avail count for PTP is reset back to the initial value.
Otherwise, we may not accept any PTP TX timestamps after
recovery.

Fixes: 118612d519d8 ("bnxt_en: Add PTP clock APIs, ioctls, and ethtool methods")
Reviewed-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
Signed-off-by: Pavan Chebbi <pavan.chebbi@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>

show more ...

eth: bnxt: fix counting packets discarded due to OOM and netpoll

[ Upstream commit 730117730709992c9f6535dd7b47638ee561ec45 ]

I added OOM and netpoll discard counters, naively assuming that
the cpr

eth: bnxt: fix counting packets discarded due to OOM and netpoll

[ Upstream commit 730117730709992c9f6535dd7b47638ee561ec45 ]

I added OOM and netpoll discard counters, naively assuming that
the cpr pointer is pointing to a common completion ring.
Turns out that is usually *a* completion ring but not *the*
completion ring which bnapi->cp_ring points to. bnapi->cp_ring
is where the stats are read from, so we end up reporting 0
thru ethtool -S and qstat even though the drop events have happened.
Make 100% sure we're recording statistics in the correct structure.

Fixes: 907fd4a294db ("bnxt: count discards due to memory allocation errors")
Reviewed-by: Michael Chan <michael.chan@broadcom.com>
Link: https://lore.kernel.org/r/20240424002148.3937059-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

show more ...

bnxt_en: Fix the PCI-AER routines

[ Upstream commit a1acdc226baec331512f815d6ac9dd6f8435cc7f ]

We do not support two simultaneous recoveries so check for reset
flag, BNXT_STATE_IN_FW_RESET, and do

bnxt_en: Fix the PCI-AER routines

[ Upstream commit a1acdc226baec331512f815d6ac9dd6f8435cc7f ]

We do not support two simultaneous recoveries so check for reset
flag, BNXT_STATE_IN_FW_RESET, and do not proceed with AER further.
When the pci channel state is pci_channel_io_frozen, the PCIe link
can not be trusted so we disable the traffic immediately and stop
BAR access by calling bnxt_fw_fatal_close(). BAR access after
AER fatal error can cause an NMI.

Fixes: f75d9a0aa967 ("bnxt_en: Re-write PCI BARs after PCI fatal error.")
Signed-off-by: Vikas Gupta <vikas.gupta@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>

show more ...

bnxt_en: refactor reset close code

[ Upstream commit 7474b1c82be3780692d537d331f9aa7fc1e5a368 ]

Introduce bnxt_fw_fatal_close() API which can be used
to stop data path and disable device when firmw

bnxt_en: refactor reset close code

[ Upstream commit 7474b1c82be3780692d537d331f9aa7fc1e5a368 ]

Introduce bnxt_fw_fatal_close() API which can be used
to stop data path and disable device when firmware
is in fatal state.

Signed-off-by: Vikas Gupta <vikas.gupta@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Stable-dep-of: a1acdc226bae ("bnxt_en: Fix the PCI-AER routines")
Signed-off-by: Sasha Levin <sashal@kernel.org>

show more ...

bnxt_en: Reset PTP tx_avail after possible firmware reset

[ Upstream commit faa12ca245585379d612736a4b5e98e88481ea59 ]

It is possible that during error recovery and firmware reset,
there is a pendi

bnxt_en: Reset PTP tx_avail after possible firmware reset

[ Upstream commit faa12ca245585379d612736a4b5e98e88481ea59 ]

It is possible that during error recovery and firmware reset,
there is a pending TX PTP packet waiting for the timestamp.
We need to reset this condition so that after recovery, the
tx_avail count for PTP is reset back to the initial value.
Otherwise, we may not accept any PTP TX timestamps after
recovery.

Fixes: 118612d519d8 ("bnxt_en: Add PTP clock APIs, ioctls, and ethtool methods")
Reviewed-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
Signed-off-by: Pavan Chebbi <pavan.chebbi@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>

show more ...

bnxt_en: Reset PTP tx_avail after possible firmware reset

[ Upstream commit faa12ca245585379d612736a4b5e98e88481ea59 ]

It is possible that during error recovery and firmware reset,
there is a pendi

bnxt_en: Reset PTP tx_avail after possible firmware reset

[ Upstream commit faa12ca245585379d612736a4b5e98e88481ea59 ]

It is possible that during error recovery and firmware reset,
there is a pending TX PTP packet waiting for the timestamp.
We need to reset this condition so that after recovery, the
tx_avail count for PTP is reset back to the initial value.
Otherwise, we may not accept any PTP TX timestamps after
recovery.

Fixes: 118612d519d8 ("bnxt_en: Add PTP clock APIs, ioctls, and ethtool methods")
Reviewed-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
Signed-off-by: Pavan Chebbi <pavan.chebbi@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>

show more ...

bnxt_en: Reset PTP tx_avail after possible firmware reset

[ Upstream commit faa12ca245585379d612736a4b5e98e88481ea59 ]

It is possible that during error recovery and firmware reset,
there is a pendi

bnxt_en: Reset PTP tx_avail after possible firmware reset

[ Upstream commit faa12ca245585379d612736a4b5e98e88481ea59 ]

It is possible that during error recovery and firmware reset,
there is a pending TX PTP packet waiting for the timestamp.
We need to reset this condition so that after recovery, the
tx_avail count for PTP is reset back to the initial value.
Otherwise, we may not accept any PTP TX timestamps after
recovery.

Fixes: 118612d519d8 ("bnxt_en: Add PTP clock APIs, ioctls, and ethtool methods")
Reviewed-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
Signed-off-by: Pavan Chebbi <pavan.chebbi@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>

show more ...

bnxt_en: Reset PTP tx_avail after possible firmware reset

[ Upstream commit faa12ca245585379d612736a4b5e98e88481ea59 ]

It is possible that during error recovery and firmware reset,
there is a pendi

bnxt_en: Reset PTP tx_avail after possible firmware reset

[ Upstream commit faa12ca245585379d612736a4b5e98e88481ea59 ]

It is possible that during error recovery and firmware reset,
there is a pending TX PTP packet waiting for the timestamp.
We need to reset this condition so that after recovery, the
tx_avail count for PTP is reset back to the initial value.
Otherwise, we may not accept any PTP TX timestamps after
recovery.

Fixes: 118612d519d8 ("bnxt_en: Add PTP clock APIs, ioctls, and ethtool methods")
Reviewed-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
Signed-off-by: Pavan Chebbi <pavan.chebbi@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>

show more ...

bnxt_en: Reset PTP tx_avail after possible firmware reset

[ Upstream commit faa12ca245585379d612736a4b5e98e88481ea59 ]

It is possible that during error recovery and firmware reset,
there is a pendi

bnxt_en: Reset PTP tx_avail after possible firmware reset

[ Upstream commit faa12ca245585379d612736a4b5e98e88481ea59 ]

It is possible that during error recovery and firmware reset,
there is a pending TX PTP packet waiting for the timestamp.
We need to reset this condition so that after recovery, the
tx_avail count for PTP is reset back to the initial value.
Otherwise, we may not accept any PTP TX timestamps after
recovery.

Fixes: 118612d519d8 ("bnxt_en: Add PTP clock APIs, ioctls, and ethtool methods")
Reviewed-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
Signed-off-by: Pavan Chebbi <pavan.chebbi@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>

show more ...

bnxt_en: Reset PTP tx_avail after possible firmware reset

[ Upstream commit faa12ca245585379d612736a4b5e98e88481ea59 ]

It is possible that during error recovery and firmware reset,
there is a pendi

bnxt_en: Reset PTP tx_avail after possible firmware reset

[ Upstream commit faa12ca245585379d612736a4b5e98e88481ea59 ]

It is possible that during error recovery and firmware reset,
there is a pending TX PTP packet waiting for the timestamp.
We need to reset this condition so that after recovery, the
tx_avail count for PTP is reset back to the initial value.
Otherwise, we may not accept any PTP TX timestamps after
recovery.

Fixes: 118612d519d8 ("bnxt_en: Add PTP clock APIs, ioctls, and ethtool methods")
Reviewed-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
Signed-off-by: Pavan Chebbi <pavan.chebbi@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>

show more ...

bnxt_en: Reset PTP tx_avail after possible firmware reset

[ Upstream commit faa12ca245585379d612736a4b5e98e88481ea59 ]

It is possible that during error recovery and firmware reset,
there is a pendi

bnxt_en: Reset PTP tx_avail after possible firmware reset

[ Upstream commit faa12ca245585379d612736a4b5e98e88481ea59 ]

It is possible that during error recovery and firmware reset,
there is a pending TX PTP packet waiting for the timestamp.
We need to reset this condition so that after recovery, the
tx_avail count for PTP is reset back to the initial value.
Otherwise, we may not accept any PTP TX timestamps after
recovery.

Fixes: 118612d519d8 ("bnxt_en: Add PTP clock APIs, ioctls, and ethtool methods")
Reviewed-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
Signed-off-by: Pavan Chebbi <pavan.chebbi@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>

show more ...

bnxt_en: Reset PTP tx_avail after possible firmware reset

[ Upstream commit faa12ca245585379d612736a4b5e98e88481ea59 ]

It is possible that during error recovery and firmware reset,
there is a pendi

bnxt_en: Reset PTP tx_avail after possible firmware reset

[ Upstream commit faa12ca245585379d612736a4b5e98e88481ea59 ]

It is possible that during error recovery and firmware reset,
there is a pending TX PTP packet waiting for the timestamp.
We need to reset this condition so that after recovery, the
tx_avail count for PTP is reset back to the initial value.
Otherwise, we may not accept any PTP TX timestamps after
recovery.

Fixes: 118612d519d8 ("bnxt_en: Add PTP clock APIs, ioctls, and ethtool methods")
Reviewed-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
Signed-off-by: Pavan Chebbi <pavan.chebbi@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>

show more ...

bnxt_en: Prevent kernel warning when running offline self test

[ Upstream commit c20f482129a582455f02eb9a6dcb2a4215274599 ]

We call bnxt_half_open_nic() to setup the chip partially to run
loopback

bnxt_en: Prevent kernel warning when running offline self test

[ Upstream commit c20f482129a582455f02eb9a6dcb2a4215274599 ]

We call bnxt_half_open_nic() to setup the chip partially to run
loopback tests. The rings and buffers are initialized normally
so that we can transmit and receive packets in loopback mode.
That means page pool buffers are allocated for the aggregation ring
just like the normal case. NAPI is not needed because we are just
polling for the loopback packets.

When we're done with the loopback tests, we call bnxt_half_close_nic()
to clean up. When freeing the page pools, we hit a WARN_ON()
in page_pool_unlink_napi() because the NAPI state linked to the
page pool is uninitialized.

The simplest way to avoid this warning is just to initialize the
NAPIs during half open and delete the NAPIs during half close.
Trying to skip the page pool initialization or skip linking of
NAPI during half open will be more complicated.

This fix avoids this warning:

WARNING: CPU: 4 PID: 46967 at net/core/page_pool.c:946 page_pool_unlink_napi+0x1f/0x30
CPU: 4 PID: 46967 Comm: ethtool Tainted: G S W 6.7.0-rc5+ #22
Hardware name: Dell Inc. PowerEdge R750/06V45N, BIOS 1.3.8 08/31/2021
RIP: 0010:page_pool_unlink_napi+0x1f/0x30
Code: 90 90 90 90 90 90 90 90 90 90 90 0f 1f 44 00 00 48 8b 47 18 48 85 c0 74 1b 48 8b 50 10 83 e2 01 74 08 8b 40 34 83 f8 ff 74 02 <0f> 0b 48 c7 47 18 00 00 00 00 c3 cc cc cc cc 66 90 90 90 90 90 90
RSP: 0018:ffa000003d0dfbe8 EFLAGS: 00010246
RAX: ff110003607ce640 RBX: ff110010baf5d000 RCX: 0000000000000008
RDX: 0000000000000000 RSI: ff110001e5e522c0 RDI: ff110010baf5d000
RBP: ff11000145539b40 R08: 0000000000000001 R09: ffffffffc063f641
R10: ff110001361eddb8 R11: 000000000040000f R12: 0000000000000001
R13: 000000000000001c R14: ff1100014553a080 R15: 0000000000003fc0
FS: 00007f9301c4f740(0000) GS:ff1100103fd00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f91344fa8f0 CR3: 00000003527cc005 CR4: 0000000000771ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
PKRU: 55555554
Call Trace:
<TASK>
? __warn+0x81/0x140
? page_pool_unlink_napi+0x1f/0x30
? report_bug+0x102/0x200
? handle_bug+0x44/0x70
? exc_invalid_op+0x13/0x60
? asm_exc_invalid_op+0x16/0x20
? bnxt_free_ring.isra.123+0xb1/0xd0 [bnxt_en]
? page_pool_unlink_napi+0x1f/0x30
page_pool_destroy+0x3e/0x150
bnxt_free_mem+0x441/0x5e0 [bnxt_en]
bnxt_half_close_nic+0x2a/0x40 [bnxt_en]
bnxt_self_test+0x21d/0x450 [bnxt_en]
__dev_ethtool+0xeda/0x2e30
? native_queued_spin_lock_slowpath+0x17f/0x2b0
? __link_object+0xa1/0x160
? _raw_spin_unlock_irqrestore+0x23/0x40
? __create_object+0x5f/0x90
? __kmem_cache_alloc_node+0x317/0x3c0
? dev_ethtool+0x59/0x170
dev_ethtool+0xa7/0x170
dev_ioctl+0xc3/0x530
sock_do_ioctl+0xa8/0xf0
sock_ioctl+0x270/0x310
__x64_sys_ioctl+0x8c/0xc0
do_syscall_64+0x3e/0xf0
entry_SYSCALL_64_after_hwframe+0x6e/0x76

Fixes: 294e39e0d034 ("bnxt: hook NAPIs to page pools")
Reviewed-by: Andy Gospodarek <andrew.gospodarek@broadcom.com>
Reviewed-by: Ajit Khaparde <ajit.khaparde@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Link: https://lore.kernel.org/r/20240117234515.226944-5-michael.chan@broadcom.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

show more ...

bnxt_en: Wait for FLR to complete during probe

[ Upstream commit 3c1069fa42872f95cf3c6fedf80723d391e12d57 ]

The first message to firmware may fail if the device is undergoing FLR.
The driver has so

bnxt_en: Wait for FLR to complete during probe

[ Upstream commit 3c1069fa42872f95cf3c6fedf80723d391e12d57 ]

The first message to firmware may fail if the device is undergoing FLR.
The driver has some recovery logic for this failure scenario but we must
wait 100 msec for FLR to complete before proceeding. Otherwise the
recovery will always fail.

Fixes: ba02629ff6cb ("bnxt_en: log firmware status on firmware init failure")
Reviewed-by: Damodharam Ammepalli <damodharam.ammepalli@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Link: https://lore.kernel.org/r/20240117234515.226944-2-michael.chan@broadcom.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

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bnxt_en: Remove mis-applied code from bnxt_cfg_ntp_filters()

[ Upstream commit e009b2efb7a8850498796b360043ac25c8d3d28f ]

The 2 lines to check for the BNXT_HWRM_PF_UNLOAD_SP_EVENT bit was
mis-appli

bnxt_en: Remove mis-applied code from bnxt_cfg_ntp_filters()

[ Upstream commit e009b2efb7a8850498796b360043ac25c8d3d28f ]

The 2 lines to check for the BNXT_HWRM_PF_UNLOAD_SP_EVENT bit was
mis-applied to bnxt_cfg_ntp_filters() and should have been applied to
bnxt_sp_task().

Fixes: 19241368443f ("bnxt_en: Send PF driver unload notification to all VFs.")
Reviewed-by: Andy Gospodarek <andrew.gospodarek@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>

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bnxt_en: Fix HWTSTAMP_FILTER_ALL packet timestamp logic

[ Upstream commit c13e268c0768659cdaae4bfe2fb24860bcc8ddb4 ]

When the chip is configured to timestamp all receive packets, the
timestamp in t

bnxt_en: Fix HWTSTAMP_FILTER_ALL packet timestamp logic

[ Upstream commit c13e268c0768659cdaae4bfe2fb24860bcc8ddb4 ]

When the chip is configured to timestamp all receive packets, the
timestamp in the RX completion is only valid if the metadata
present flag is not set for packets received on the wire. In
addition, internal loopback packets will never have a valid timestamp
and the timestamp field will always be zero. We must exclude
any 0 value in the timestamp field because there is no way to
determine if it is a loopback packet or not.

Add a new function bnxt_rx_ts_valid() to check for all timestamp
valid conditions.

Fixes: 66ed81dcedc6 ("bnxt_en: Enable packet timestamping for all RX packets")
Reviewed-by: Andy Gospodarek <andrew.gospodarek@broadcom.com>
Reviewed-by: Pavan Chebbi <pavan.chebbi@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Link: https://lore.kernel.org/r/20231208001658.14230-5-michael.chan@broadcom.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

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bnxt_en: Fix wrong return value check in bnxt_close_nic()

[ Upstream commit bd6781c18cb5b5e5d8c5873fa9a51668e89ec76e ]

The wait_event_interruptible_timeout() function returns 0
if the timeout elaps

bnxt_en: Fix wrong return value check in bnxt_close_nic()

[ Upstream commit bd6781c18cb5b5e5d8c5873fa9a51668e89ec76e ]

The wait_event_interruptible_timeout() function returns 0
if the timeout elapsed, -ERESTARTSYS if it was interrupted
by a signal, and the remaining jiffies otherwise if the
condition evaluated to true before the timeout elapsed.

Driver should have checked for zero return value instead of
a positive value.

MChan: Print a warning for -ERESTARTSYS. The close operation
will proceed anyway when wait_event_interruptible_timeout()
returns for any reason. Since we do the close no matter what,
we should not return this error code to the caller. Change
bnxt_close_nic() to a void function and remove all error
handling from some of the callers.

Fixes: c0c050c58d84 ("bnxt_en: New Broadcom ethernet driver.")
Reviewed-by: Andy Gospodarek <andrew.gospodarek@broadcom.com>
Reviewed-by: Vikas Gupta <vikas.gupta@broadcom.com>
Reviewed-by: Somnath Kotur <somnath.kotur@broadcom.com>
Signed-off-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Link: https://lore.kernel.org/r/20231208001658.14230-4-michael.chan@broadcom.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

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bnxt_en: Fix skb recycling logic in bnxt_deliver_skb()

[ Upstream commit aded5d1feb08e48d544845d3594d70c4d5fe6e54 ]

Receive SKBs can go through the VF-rep path or the normal path.
skb_mark_for_recy

bnxt_en: Fix skb recycling logic in bnxt_deliver_skb()

[ Upstream commit aded5d1feb08e48d544845d3594d70c4d5fe6e54 ]

Receive SKBs can go through the VF-rep path or the normal path.
skb_mark_for_recycle() is only called for the normal path. Fix it
to do it for both paths to fix possible stalled page pool shutdown
errors.

Fixes: 86b05508f775 ("bnxt_en: Use the unified RX page pool buffers for XDP and non-XDP")
Reviewed-by: Somnath Kotur <somnath.kotur@broadcom.com>
Reviewed-by: Andy Gospodarek <andrew.gospodarek@broadcom.com>
Reviewed-by: Vikas Gupta <vikas.gupta@broadcom.com>
Signed-off-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Link: https://lore.kernel.org/r/20231208001658.14230-3-michael.chan@broadcom.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

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