diff options
| author | Jayamohan Kallickal <jayamohan.kallickal@emulex.com> | 2014-05-05 21:41:26 -0400 |
|---|---|---|
| committer | Christoph Hellwig <hch@lst.de> | 2014-05-28 18:13:15 +0200 |
| commit | 73af08e11c6638e2abd6b1fa13cdab58c2bbdbf8 (patch) | |
| tree | f0e8c962e78abbe22c5fe034022368dc8453d2ea /drivers/scsi/be2iscsi/be_mgmt.c | |
| parent | 0598b8afd65d6b0893d217f7cf77ea315cdfcb5b (diff) | |
be2iscsi: Fix interrupt Coalescing mechanism.
Signed-off-by: Minh Tran <minhduc.tran@emulex.com>
Signed-off-by: John Soni Jose <sony.john-n@emulex.com>
Signed-off-by: Jayamohan Kallickal <jayamohan.kallickal@emulex.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'drivers/scsi/be2iscsi/be_mgmt.c')
| -rw-r--r-- | drivers/scsi/be2iscsi/be_mgmt.c | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/drivers/scsi/be2iscsi/be_mgmt.c b/drivers/scsi/be2iscsi/be_mgmt.c index 712911fba075..52a36fba1e2b 100644 --- a/drivers/scsi/be2iscsi/be_mgmt.c +++ b/drivers/scsi/be2iscsi/be_mgmt.c @@ -155,6 +155,43 @@ void beiscsi_ue_detect(struct beiscsi_hba *phba) } } +int be_cmd_modify_eq_delay(struct beiscsi_hba *phba, + struct be_set_eqd *set_eqd, int num) +{ + struct be_ctrl_info *ctrl = &phba->ctrl; + struct be_mcc_wrb *wrb; + struct be_cmd_req_modify_eq_delay *req; + unsigned int tag = 0; + int i; + + spin_lock(&ctrl->mbox_lock); + tag = alloc_mcc_tag(phba); + if (!tag) { + spin_unlock(&ctrl->mbox_lock); + return tag; + } + + wrb = wrb_from_mccq(phba); + req = embedded_payload(wrb); + + wrb->tag0 |= tag; + be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0); + be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_COMMON, + OPCODE_COMMON_MODIFY_EQ_DELAY, sizeof(*req)); + + req->num_eq = cpu_to_le32(num); + for (i = 0; i < num; i++) { + req->delay[i].eq_id = cpu_to_le32(set_eqd[i].eq_id); + req->delay[i].phase = 0; + req->delay[i].delay_multiplier = + cpu_to_le32(set_eqd[i].delay_multiplier); + } + + be_mcc_notify(phba); + spin_unlock(&ctrl->mbox_lock); + return tag; +} + /** * mgmt_reopen_session()- Reopen a session based on reopen_type * @phba: Device priv structure instance |