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| author |   Varun Prakash <varun@chelsio.com> | 2021-10-13 19:55:09 +0530 |
|---|---|---|
| committer |   Martin K. Petersen <martin.petersen@oracle.com> | 2021-10-18 22:38:35 -0400 |
| commit | d1e51ea6bf5f72f67937f4446a5b6d56330f9d79 (patch) | |
| tree | a865b8991511649583fe55df41527d57a90e859f /drivers/target/iscsi/cxgbit/cxgbit_target.c | |
| parent | scsi: target: cxgbit: Increase max DataSegmentLength (diff) | |
| download | linux-dev-d1e51ea6bf5f72f67937f4446a5b6d56330f9d79.tar.xz linux-dev-d1e51ea6bf5f72f67937f4446a5b6d56330f9d79.zip | |
scsi: target: cxgbit: Enable Delayed ACK
Enable Delayed ACK to reduce the number of TCP ACKs.
Link: https://lore.kernel.org/r/1634135109-5044-1-git-send-email-varun@chelsio.com
Signed-off-by: Varun Prakash <varun@chelsio.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/target/iscsi/cxgbit/cxgbit_target.c')
| -rw-r--r-- | drivers/target/iscsi/cxgbit/cxgbit_target.c | 28 |
1 files changed, 23 insertions, 5 deletions
diff --git a/drivers/target/iscsi/cxgbit/cxgbit_target.c b/drivers/target/iscsi/cxgbit/cxgbit_target.c index 282297ffc404..d314ee120a48 100644 --- a/drivers/target/iscsi/cxgbit/cxgbit_target.c +++ b/drivers/target/iscsi/cxgbit/cxgbit_target.c @@ -189,8 +189,8 @@ cxgbit_tx_data_wr(struct cxgbit_sock *csk, struct sk_buff *skb, u32 dlen, wr_ulp_mode = FW_OFLD_TX_DATA_WR_ULPMODE_V(ULP_MODE_ISCSI) | FW_OFLD_TX_DATA_WR_ULPSUBMODE_V(submode); - req->tunnel_to_proxy = htonl((wr_ulp_mode) | force | - FW_OFLD_TX_DATA_WR_SHOVE_V(skb_peek(&csk->txq) ? 0 : 1)); + req->tunnel_to_proxy = htonl(wr_ulp_mode | force | + FW_OFLD_TX_DATA_WR_SHOVE_F); } static void cxgbit_arp_failure_skb_discard(void *handle, struct sk_buff *skb) @@ -1531,7 +1531,7 @@ out: return ret; } -static int cxgbit_rx_lro_skb(struct cxgbit_sock *csk, struct sk_buff *skb) +static int cxgbit_t5_rx_lro_skb(struct cxgbit_sock *csk, struct sk_buff *skb) { struct cxgbit_lro_cb *lro_cb = cxgbit_skb_lro_cb(skb); struct cxgbit_lro_pdu_cb *pdu_cb = cxgbit_skb_lro_pdu_cb(skb, 0); @@ -1557,6 +1557,24 @@ static int cxgbit_rx_lro_skb(struct cxgbit_sock *csk, struct sk_buff *skb) return ret; } +static int cxgbit_rx_lro_skb(struct cxgbit_sock *csk, struct sk_buff *skb) +{ + struct cxgbit_lro_cb *lro_cb = cxgbit_skb_lro_cb(skb); + int ret; + + ret = cxgbit_process_lro_skb(csk, skb); + if (ret) + return ret; + + csk->rx_credits += lro_cb->pdu_totallen; + if (csk->rx_credits >= csk->rcv_win) { + csk->rx_credits = 0; + cxgbit_rx_data_ack(csk); + } + + return 0; +} + static int cxgbit_rx_skb(struct cxgbit_sock *csk, struct sk_buff *skb) { struct cxgb4_lld_info *lldi = &csk->com.cdev->lldi; @@ -1564,9 +1582,9 @@ static int cxgbit_rx_skb(struct cxgbit_sock *csk, struct sk_buff *skb) if (likely(cxgbit_skcb_flags(skb) & SKCBF_RX_LRO)) { if (is_t5(lldi->adapter_type)) - ret = cxgbit_rx_lro_skb(csk, skb); + ret = cxgbit_t5_rx_lro_skb(csk, skb); else - ret = cxgbit_process_lro_skb(csk, skb); + ret = cxgbit_rx_lro_skb(csk, skb); } __kfree_skb(skb); |