diff options
Diffstat (limited to 'drivers/net/cxgb4vf/sge.c')
| -rw-r--r-- | drivers/net/cxgb4vf/sge.c | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/drivers/net/cxgb4vf/sge.c b/drivers/net/cxgb4vf/sge.c index 37c6354547c7..f2ee9b0bcc37 100644 --- a/drivers/net/cxgb4vf/sge.c +++ b/drivers/net/cxgb4vf/sge.c @@ -1070,6 +1070,7 @@ static inline void txq_advance(struct sge_txq *tq, unsigned int n) */ int t4vf_eth_xmit(struct sk_buff *skb, struct net_device *dev) { + u32 wr_mid; u64 cntrl, *end; int qidx, credits; unsigned int flits, ndesc; @@ -1143,14 +1144,19 @@ int t4vf_eth_xmit(struct sk_buff *skb, struct net_device *dev) goto out_free; } + wr_mid = FW_WR_LEN16(DIV_ROUND_UP(flits, 2)); if (unlikely(credits < ETHTXQ_STOP_THRES)) { /* * After we're done injecting the Work Request for this * packet, we'll be below our "stop threshhold" so stop the TX - * Queue now. The queue will get started later on when the - * firmware informs us that space has opened up. + * Queue now and schedule a request for an SGE Egress Queue + * Update message. The queue will get started later on when + * the firmware processes this Work Request and sends us an + * Egress Queue Status Update message indicating that space + * has opened up. */ txq_stop(txq); + wr_mid |= FW_WR_EQUEQ | FW_WR_EQUIQ; } /* @@ -1161,7 +1167,7 @@ int t4vf_eth_xmit(struct sk_buff *skb, struct net_device *dev) */ BUG_ON(DIV_ROUND_UP(ETHTXQ_MAX_HDR, TXD_PER_EQ_UNIT) > 1); wr = (void *)&txq->q.desc[txq->q.pidx]; - wr->equiq_to_len16 = cpu_to_be32(FW_WR_LEN16(DIV_ROUND_UP(flits, 2))); + wr->equiq_to_len16 = cpu_to_be32(wr_mid); wr->r3[0] = cpu_to_be64(0); wr->r3[1] = cpu_to_be64(0); skb_copy_from_linear_data(skb, (void *)wr->ethmacdst, fw_hdr_copy_len); |