iser-target: Fix isert_put_reject payload buffer post
This patch adds the missing isert_put_reject() logic to post
a outgoing payload buffer to hold the 48 bytes of original PDU
header request payload for the rejected cmd.
It also fixes ISTATE_SEND_REJECT handling in isert_response_completion()
-> isert_do_control_comp() code, and drops incorrect iscsi_cmd_t->reject_comp
usage.
Cc: Or Gerlitz <ogerlitz@mellanox.com>
Cc: Mike Christie <michaelc@cs.wisc.edu>
Cc: stable@vger.kernel.org # 3.10+
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
diff --git a/drivers/infiniband/ulp/isert/ib_isert.c b/drivers/infiniband/ulp/isert/ib_isert.c
index c48c948..1b38eff 100644
--- a/drivers/infiniband/ulp/isert/ib_isert.c
+++ b/drivers/infiniband/ulp/isert/ib_isert.c
@@ -1243,6 +1243,9 @@
* associated cmd->se_cmd needs to be released.
*/
if (cmd->se_cmd.se_tfo != NULL) {
+ pr_debug("Calling transport_generic_free_cmd from"
+ " isert_put_cmd for 0x%02x\n",
+ cmd->iscsi_opcode);
transport_generic_free_cmd(&cmd->se_cmd, 0);
break;
}
@@ -1339,8 +1342,8 @@
atomic_dec(&isert_conn->post_send_buf_count);
cmd->i_state = ISTATE_SENT_STATUS;
- complete(&cmd->reject_comp);
isert_completion_put(&isert_cmd->tx_desc, isert_cmd, ib_dev);
+ break;
case ISTATE_SEND_LOGOUTRSP:
pr_debug("Calling iscsit_logout_post_handler >>>>>>>>>>>>>>\n");
/*
@@ -1366,7 +1369,8 @@
struct iscsi_cmd *cmd = &isert_cmd->iscsi_cmd;
if (cmd->i_state == ISTATE_SEND_TASKMGTRSP ||
- cmd->i_state == ISTATE_SEND_LOGOUTRSP) {
+ cmd->i_state == ISTATE_SEND_LOGOUTRSP ||
+ cmd->i_state == ISTATE_SEND_REJECT) {
isert_unmap_tx_desc(tx_desc, ib_dev);
INIT_WORK(&isert_cmd->comp_work, isert_do_control_comp);
@@ -1658,11 +1662,25 @@
struct isert_cmd, iscsi_cmd);
struct isert_conn *isert_conn = (struct isert_conn *)conn->context;
struct ib_send_wr *send_wr = &isert_cmd->tx_desc.send_wr;
+ struct ib_device *ib_dev = isert_conn->conn_cm_id->device;
+ struct ib_sge *tx_dsg = &isert_cmd->tx_desc.tx_sg[1];
+ struct iscsi_reject *hdr =
+ (struct iscsi_reject *)&isert_cmd->tx_desc.iscsi_header;
isert_create_send_desc(isert_conn, isert_cmd, &isert_cmd->tx_desc);
- iscsit_build_reject(cmd, conn, (struct iscsi_reject *)
- &isert_cmd->tx_desc.iscsi_header);
+ iscsit_build_reject(cmd, conn, hdr);
isert_init_tx_hdrs(isert_conn, &isert_cmd->tx_desc);
+
+ hton24(hdr->dlength, ISCSI_HDR_LEN);
+ isert_cmd->sense_buf_dma = ib_dma_map_single(ib_dev,
+ (void *)cmd->buf_ptr, ISCSI_HDR_LEN,
+ DMA_TO_DEVICE);
+ isert_cmd->sense_buf_len = ISCSI_HDR_LEN;
+ tx_dsg->addr = isert_cmd->sense_buf_dma;
+ tx_dsg->length = ISCSI_HDR_LEN;
+ tx_dsg->lkey = isert_conn->conn_mr->lkey;
+ isert_cmd->tx_desc.num_sge = 2;
+
isert_init_send_wr(isert_cmd, send_wr);
pr_debug("Posting Reject IB_WR_SEND >>>>>>>>>>>>>>>>>>>>>>\n");