Commit a53d26eb authored by Bert Kenward's avatar Bert Kenward Committed by David S. Miller
Browse files

sfc: tx ring can only have 2048 entries for all EF10 NICs 



Fixes: dd248f1b ("sfc: Add PCI ID for Solarflare 8000 series 10/40G NIC")
Reported-by: default avatarPatrick Talbert <ptalbert@redhat.com>
Signed-off-by: default avatarBert Kenward <bkenward@solarflare.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent f6478218

drivers/net/ethernet/sfc/efx.h

+4 −1
Original line number Diff line number Diff line
@@ -74,7 +74,10 @@ void efx_schedule_slow_fill(struct efx_rx_queue *rx_queue); 
#define EFX_RXQ_MIN_ENT		128U

#define EFX_TXQ_MIN_ENT(efx)	(2 * efx_tx_max_skb_descs(efx))



#define EFX_TXQ_MAX_ENT(efx)	(EFX_WORKAROUND_35388(efx) ? \

/* All EF10 architecture NICs steal one bit of the DMAQ size for various

 * other purposes when counting TxQ entries, so we halve the queue size.

 */

#define EFX_TXQ_MAX_ENT(efx)	(EFX_WORKAROUND_EF10(efx) ? \

				 EFX_MAX_DMAQ_SIZE / 2 : EFX_MAX_DMAQ_SIZE)



static inline bool efx_rss_enabled(struct efx_nic *efx)

drivers/net/ethernet/sfc/workarounds.h

+1 −0
Original line number Diff line number Diff line
@@ -16,6 +16,7 @@ 
 */



#define EFX_WORKAROUND_SIENA(efx) (efx_nic_rev(efx) == EFX_REV_SIENA_A0)

#define EFX_WORKAROUND_EF10(efx) (efx_nic_rev(efx) >= EFX_REV_HUNT_A0)

#define EFX_WORKAROUND_10G(efx) 1



/* Bit-bashed I2C reads cause performance drop */

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