diff options
| author |   Varun Prakash <varun@chelsio.com> | 2017-01-13 20:53:25 +0530 |
|---|---|---|
| committer |   Nicholas Bellinger <nab@linux-iscsi.org> | 2017-02-18 21:24:21 -0800 |
| commit | 79e57cfe00f40d509e2d007a5662db26cdbc74db (patch) | |
| tree | b025ff0ba094a6a9c6a40ef0811237f9dcfbbbb4 /drivers/target/iscsi/cxgbit/cxgbit_cm.c | |
| parent | target/cxgbit: Enable DDP for T6 only if data sequence and pdu are in order (diff) | |
| download | linux-dev-79e57cfe00f40d509e2d007a5662db26cdbc74db.tar.xz linux-dev-79e57cfe00f40d509e2d007a5662db26cdbc74db.zip | |
target/cxgbit: add T6 iSCSI DDP completion feature
Chelsio T6 adapters reduce number of completion
to host by generating single completion for all
directly placed(DDP) iSCSI pdus in a sequence,
completion contains iSCSI hdr of the last pdu
in a sequence.
On receiving DDP completion cxgbit driver finds
iSCSI cmd using iscsit_find_cmd_from_itt_or_dump(),
then updates cmd->write_data_done, cmd->next_burst_len,
cmd->data_sn and calls __iscsit_check_dataout_hdr()
to validate iSCSI hdr.
(Update __iscsit_check_dataout_hdr parameter usage - nab)
Signed-off-by: Varun Prakash <varun@chelsio.com>
Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Diffstat (limited to 'drivers/target/iscsi/cxgbit/cxgbit_cm.c')
| -rw-r--r-- | drivers/target/iscsi/cxgbit/cxgbit_cm.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/target/iscsi/cxgbit/cxgbit_cm.c b/drivers/target/iscsi/cxgbit/cxgbit_cm.c index b26c85a65b80..37a05185dcbe 100644 --- a/drivers/target/iscsi/cxgbit/cxgbit_cm.c +++ b/drivers/target/iscsi/cxgbit/cxgbit_cm.c @@ -1114,6 +1114,9 @@ cxgbit_pass_accept_rpl(struct cxgbit_sock *csk, struct cpl_pass_accept_req *req) opt2 = RX_CHANNEL_V(0) | RSS_QUEUE_VALID_F | RSS_QUEUE_V(csk->rss_qid); + if (!is_t5(lldi->adapter_type)) + opt2 |= RX_FC_DISABLE_F; + if (req->tcpopt.tstamp) opt2 |= TSTAMPS_EN_F; if (req->tcpopt.sack) |