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| author | Martin Habets <habetsm.xilinx@gmail.com> | 2022-06-01 08:36:02 +0200 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2022-06-02 02:47:16 +0200 |
| commit | 183614bff5fc1682240ab7604201e18afb118092 (patch) | |
| tree | dbe998eb0930ab95cbf8df7e6ab71ad80c42bfcc /drivers/net/ethernet | |
| parent | Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/klasse... (diff) | |
| download | linux-183614bff5fc1682240ab7604201e18afb118092.tar.xz linux-183614bff5fc1682240ab7604201e18afb118092.zip | |
sfc/siena: fix considering that all channels have TX queues
Normally, all channels have RX and TX queues, but this is not true if
modparam efx_separate_tx_channels=1 is used. In that cases, some
channels only have RX queues and others only TX queues (or more
preciselly, they have them allocated, but not initialized).
Fix efx_channel_has_tx_queues to return the correct value for this case
too.
This has been already done for sfc, do it also for sfc_siena.
Messages shown at probe time before the fix:
sfc 0000:03:00.0 ens6f0np0: MC command 0x82 inlen 544 failed rc=-22 (raw=0) arg=0
------------[ cut here ]------------
netdevice: ens6f0np0: failed to initialise TXQ -1
WARNING: CPU: 1 PID: 626 at drivers/net/ethernet/sfc/ef10.c:2393 efx_ef10_tx_init+0x201/0x300 [sfc]
[...] stripped
RIP: 0010:efx_ef10_tx_init+0x201/0x300 [sfc]
[...] stripped
Call Trace:
efx_init_tx_queue+0xaa/0xf0 [sfc]
efx_start_channels+0x49/0x120 [sfc]
efx_start_all+0x1f8/0x430 [sfc]
efx_net_open+0x5a/0xe0 [sfc]
__dev_open+0xd0/0x190
__dev_change_flags+0x1b3/0x220
dev_change_flags+0x21/0x60
[...] stripped
Messages shown at remove time before the fix:
sfc 0000:03:00.0 ens6f0np0: failed to flush 10 queues
sfc 0000:03:00.0 ens6f0np0: failed to flush queues
Fixes: 8700aff08984 ("sfc: fix channel allocation with brute force")
Reported-by: Tianhao Zhao <tizhao@redhat.com>
Signed-off-by: Martin Habets <habetsm.xilinx@gmail.com>
Tested-by: Íñigo Huguet <ihuguet@redhat.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'drivers/net/ethernet')
| -rw-r--r-- | drivers/net/ethernet/sfc/siena/net_driver.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/ethernet/sfc/siena/net_driver.h b/drivers/net/ethernet/sfc/siena/net_driver.h index a8f6c3699c8b..c4a97fbf4672 100644 --- a/drivers/net/ethernet/sfc/siena/net_driver.h +++ b/drivers/net/ethernet/sfc/siena/net_driver.h @@ -1529,7 +1529,7 @@ static inline bool efx_channel_is_xdp_tx(struct efx_channel *channel) static inline bool efx_channel_has_tx_queues(struct efx_channel *channel) { - return true; + return channel && channel->channel >= channel->efx->tx_channel_offset; } static inline unsigned int efx_channel_num_tx_queues(struct efx_channel *channel) |