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

[karo-tx-linux.git] / drivers / net / ethernet / sfc / efx.h

diff --git a/drivers/net/ethernet/sfc/efx.h b/drivers/net/ethernet/sfc/efx.h
index ee14662415c5dfc827a02cb577794af495b0433c..a0c52e3281024b566dfe4b58e3014f26aadb0eaf 100644 (file)
--- a/drivers/net/ethernet/sfc/efx.h
+++ b/drivers/net/ethernet/sfc/efx.h
@@ -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)