diff options
| author | Edward Cree <ecree@solarflare.com> | 2018-03-27 17:44:36 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2018-03-27 13:33:20 -0400 |
| commit | e0a65e3c5e3b7b11ec9320524b8fcc210f2026e9 (patch) | |
| tree | e82d5fb1d37ef7bff0c1d75a2cbe1f7f0ede3e57 /drivers/net/ethernet/sfc/net_driver.h | |
| parent | 31b842955211f427a099f78a6a63d18a6bbc8d55 (diff) | |
sfc: protect list of RSS contexts under a mutex
Otherwise races are possible between ethtool ops and
efx_ef10_rx_restore_rss_contexts().
Also, don't try to perform the restore on every reset, only after an MC
reboot, otherwise we'll leak RSS contexts on the NIC.
Fixes: 42356d9a137b ("sfc: support RSS spreading of ethtool ntuple filters")
Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/sfc/net_driver.h')
| -rw-r--r-- | drivers/net/ethernet/sfc/net_driver.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/net/ethernet/sfc/net_driver.h b/drivers/net/ethernet/sfc/net_driver.h index 92ee55d84b7d..5e379a83c729 100644 --- a/drivers/net/ethernet/sfc/net_driver.h +++ b/drivers/net/ethernet/sfc/net_driver.h @@ -796,6 +796,7 @@ struct efx_rss_context { * @rx_scatter: Scatter mode enabled for receives * @rss_context: Main RSS context. Its @list member is the head of the list of * RSS contexts created by user requests + * @rss_lock: Protects custom RSS context software state in @rss_context.list * @int_error_count: Number of internal errors seen recently * @int_error_expire: Time at which error count will be expired * @irq_soft_enabled: Are IRQs soft-enabled? If not, IRQ handler will @@ -940,6 +941,7 @@ struct efx_nic { int rx_packet_ts_offset; bool rx_scatter; struct efx_rss_context rss_context; + struct mutex rss_lock; unsigned int_error_count; unsigned long int_error_expire; |