diff options
Diffstat (limited to 'drivers/infiniband/ulp/iser/iscsi_iser.c')
| -rw-r--r-- | drivers/infiniband/ulp/iser/iscsi_iser.c | 48 |
1 files changed, 25 insertions, 23 deletions
diff --git a/drivers/infiniband/ulp/iser/iscsi_iser.c b/drivers/infiniband/ulp/iser/iscsi_iser.c index 1e5b6446231d..12876392516e 100644 --- a/drivers/infiniband/ulp/iser/iscsi_iser.c +++ b/drivers/infiniband/ulp/iser/iscsi_iser.c @@ -119,6 +119,14 @@ error: iscsi_conn_failure(conn, rc); } +static int iscsi_iser_pdu_alloc(struct iscsi_task *task, uint8_t opcode) +{ + struct iscsi_iser_task *iser_task = task->dd_data; + + task->hdr = (struct iscsi_hdr *)&iser_task->desc.iscsi_header; + task->hdr_max = sizeof(iser_task->desc.iscsi_header); + return 0; +} /** * iscsi_iser_task_init - Initialize task @@ -180,25 +188,26 @@ static int iscsi_iser_task_xmit_unsol_data(struct iscsi_conn *conn, struct iscsi_task *task) { - struct iscsi_data hdr; + struct iscsi_r2t_info *r2t = &task->unsol_r2t; + struct iscsi_data hdr; int error = 0; /* Send data-out PDUs while there's still unsolicited data to send */ - while (task->unsol_count > 0) { - iscsi_prep_unsolicit_data_pdu(task, &hdr); + while (iscsi_task_has_unsol_data(task)) { + iscsi_prep_data_out_pdu(task, r2t, &hdr); debug_scsi("Sending data-out: itt 0x%x, data count %d\n", - hdr.itt, task->data_count); + hdr.itt, r2t->data_count); /* the buffer description has been passed with the command */ /* Send the command */ error = iser_send_data_out(conn, task, &hdr); if (error) { - task->unsol_datasn--; + r2t->datasn--; goto iscsi_iser_task_xmit_unsol_data_exit; } - task->unsol_count -= task->data_count; + r2t->sent += r2t->data_count; debug_scsi("Need to send %d more as data-out PDUs\n", - task->unsol_count); + r2t->data_length - r2t->sent); } iscsi_iser_task_xmit_unsol_data_exit: @@ -220,7 +229,7 @@ iscsi_iser_task_xmit(struct iscsi_task *task) debug_scsi("cmd [itt %x total %d imm %d unsol_data %d\n", task->itt, scsi_bufflen(task->sc), - task->imm_count, task->unsol_count); + task->imm_count, task->unsol_r2t.data_length); } debug_scsi("task deq [cid %d itt 0x%x]\n", @@ -235,7 +244,7 @@ iscsi_iser_task_xmit(struct iscsi_task *task) } /* Send unsolicited data-out PDU(s) if necessary */ - if (task->unsol_count) + if (iscsi_task_has_unsol_data(task)) error = iscsi_iser_task_xmit_unsol_data(conn, task); iscsi_iser_task_xmit_exit: @@ -244,13 +253,15 @@ iscsi_iser_task_xmit(struct iscsi_task *task) return error; } -static void -iscsi_iser_cleanup_task(struct iscsi_conn *conn, struct iscsi_task *task) +static void iscsi_iser_cleanup_task(struct iscsi_task *task) { struct iscsi_iser_task *iser_task = task->dd_data; - /* mgmt tasks do not need special cleanup */ - if (!task->sc) + /* + * mgmt tasks do not need special cleanup and we do not + * allocate anything in the init task callout + */ + if (!task->sc || task->state == ISCSI_TASK_PENDING) return; if (iser_task->status == ISER_TASK_STATUS_STARTED) { @@ -391,9 +402,6 @@ iscsi_iser_session_create(struct iscsi_endpoint *ep, struct iscsi_cls_session *cls_session; struct iscsi_session *session; struct Scsi_Host *shost; - int i; - struct iscsi_task *task; - struct iscsi_iser_task *iser_task; struct iser_conn *ib_conn; shost = iscsi_host_alloc(&iscsi_iser_sht, 0, ISCSI_MAX_CMD_PER_LUN); @@ -430,13 +438,6 @@ iscsi_iser_session_create(struct iscsi_endpoint *ep, session = cls_session->dd_data; shost->can_queue = session->scsi_cmds_max; - /* libiscsi setup itts, data and pool so just set desc fields */ - for (i = 0; i < session->cmds_max; i++) { - task = session->cmds[i]; - iser_task = task->dd_data; - task->hdr = (struct iscsi_cmd *)&iser_task->desc.iscsi_header; - task->hdr_max = sizeof(iser_task->desc.iscsi_header); - } return cls_session; remove_host: @@ -652,6 +653,7 @@ static struct iscsi_transport iscsi_iser_transport = { .init_task = iscsi_iser_task_init, .xmit_task = iscsi_iser_task_xmit, .cleanup_task = iscsi_iser_cleanup_task, + .alloc_pdu = iscsi_iser_pdu_alloc, /* recovery */ .session_recovery_timedout = iscsi_session_recovery_timedout, |