Commit c91d7072 authored by Linus Torvalds's avatar Linus Torvalds
Browse files

Merge git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending

Pull SCSI target fixes from Nicholas Bellinger:
 "This includes a iser-target series from Jenny + Sagi @ Mellanox that
  addresses the few remaining active I/O shutdown bugs, along with a
  patch to support zero-copy for immediate data payloads that gives a
  nice performance improvement for small block WRITEs.

  Also included are some recent >= v4.2 regression bug-fixes.  The most
  notable is a RCU conversion regression for SPC-3 PR registrations, and
  recent removal of obsolete RFC-3720 markers that introduced a login
  regression bug with MSFT iSCSI initiators.

  Thanks to everyone who has been testing + reporting bugs for v4.x"

* git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending:
  iscsi-target: Avoid OFMarker + IFMarker negotiation
  target: Make TCM_WRITE_PROTECT failure honor D_SENSE bit
  target: Fix target_sense_desc_format NULL pointer dereference
  target: Propigate backend read-only to core_tpg_add_lun
  target: Fix PR registration + APTPL RCU conversion regression
  iser-target: Skip data copy if all the command data comes as immediate
  iser-target: Change the recv buffers posting logic
  iser-target: Fix pending connections handling in target stack shutdown sequnce
  iser-target: Remove np_ prefix from isert_np members
  iser-target: Remove unused variables
  iser-target: Put the reference on commands waiting for unsol data
  iser-target: remove command with state ISTATE_REMOVE
parents bcba282a 673681ca
......@@ -238,8 +238,6 @@ isert_alloc_rx_descriptors(struct isert_conn *isert_conn)
rx_sg->lkey = device->pd->local_dma_lkey;
}
isert_conn->rx_desc_head = 0;
return 0;
dma_map_fail:
......@@ -634,7 +632,7 @@ static void
isert_init_conn(struct isert_conn *isert_conn)
{
isert_conn->state = ISER_CONN_INIT;
INIT_LIST_HEAD(&isert_conn->accept_node);
INIT_LIST_HEAD(&isert_conn->node);
init_completion(&isert_conn->login_comp);
init_completion(&isert_conn->login_req_comp);
init_completion(&isert_conn->wait);
......@@ -762,28 +760,15 @@ isert_connect_request(struct rdma_cm_id *cma_id, struct rdma_cm_event *event)
ret = isert_rdma_post_recvl(isert_conn);
if (ret)
goto out_conn_dev;
/*
* Obtain the second reference now before isert_rdma_accept() to
* ensure that any initiator generated REJECT CM event that occurs
* asynchronously won't drop the last reference until the error path
* in iscsi_target_login_sess_out() does it's ->iscsit_free_conn() ->
* isert_free_conn() -> isert_put_conn() -> kref_put().
*/
if (!kref_get_unless_zero(&isert_conn->kref)) {
isert_warn("conn %p connect_release is running\n", isert_conn);
goto out_conn_dev;
}
ret = isert_rdma_accept(isert_conn);
if (ret)
goto out_conn_dev;
mutex_lock(&isert_np->np_accept_mutex);
list_add_tail(&isert_conn->accept_node, &isert_np->np_accept_list);
mutex_unlock(&isert_np->np_accept_mutex);
mutex_lock(&isert_np->mutex);
list_add_tail(&isert_conn->node, &isert_np->accepted);
mutex_unlock(&isert_np->mutex);
isert_info("np %p: Allow accept_np to continue\n", np);
up(&isert_np->np_sem);
return 0;
out_conn_dev:
......@@ -831,13 +816,21 @@ static void
isert_connected_handler(struct rdma_cm_id *cma_id)
{
struct isert_conn *isert_conn = cma_id->qp->qp_context;
struct isert_np *isert_np = cma_id->context;
isert_info("conn %p\n", isert_conn);
mutex_lock(&isert_conn->mutex);
if (isert_conn->state != ISER_CONN_FULL_FEATURE)
isert_conn->state = ISER_CONN_UP;
isert_conn->state = ISER_CONN_UP;
kref_get(&isert_conn->kref);
mutex_unlock(&isert_conn->mutex);
mutex_lock(&isert_np->mutex);
list_move_tail(&isert_conn->node, &isert_np->pending);
mutex_unlock(&isert_np->mutex);
isert_info("np %p: Allow accept_np to continue\n", isert_np);
up(&isert_np->sem);
}
static void
......@@ -903,14 +896,14 @@ isert_np_cma_handler(struct isert_np *isert_np,
switch (event) {
case RDMA_CM_EVENT_DEVICE_REMOVAL:
isert_np->np_cm_id = NULL;
isert_np->cm_id = NULL;
break;
case RDMA_CM_EVENT_ADDR_CHANGE:
isert_np->np_cm_id = isert_setup_id(isert_np);
if (IS_ERR(isert_np->np_cm_id)) {
isert_np->cm_id = isert_setup_id(isert_np);
if (IS_ERR(isert_np->cm_id)) {
isert_err("isert np %p setup id failed: %ld\n",
isert_np, PTR_ERR(isert_np->np_cm_id));
isert_np->np_cm_id = NULL;
isert_np, PTR_ERR(isert_np->cm_id));
isert_np->cm_id = NULL;
}
break;
default:
......@@ -929,7 +922,7 @@ isert_disconnected_handler(struct rdma_cm_id *cma_id,
struct isert_conn *isert_conn;
bool terminating = false;
if (isert_np->np_cm_id == cma_id)
if (isert_np->cm_id == cma_id)
return isert_np_cma_handler(cma_id->context, event);
isert_conn = cma_id->qp->qp_context;
......@@ -945,13 +938,13 @@ isert_disconnected_handler(struct rdma_cm_id *cma_id,
if (terminating)
goto out;
mutex_lock(&isert_np->np_accept_mutex);
if (!list_empty(&isert_conn->accept_node)) {
list_del_init(&isert_conn->accept_node);
mutex_lock(&isert_np->mutex);
if (!list_empty(&isert_conn->node)) {
list_del_init(&isert_conn->node);
isert_put_conn(isert_conn);
queue_work(isert_release_wq, &isert_conn->release_work);
}
mutex_unlock(&isert_np->np_accept_mutex);
mutex_unlock(&isert_np->mutex);
out:
return 0;
......@@ -962,6 +955,7 @@ isert_connect_error(struct rdma_cm_id *cma_id)
{
struct isert_conn *isert_conn = cma_id->qp->qp_context;
list_del_init(&isert_conn->node);
isert_conn->cm_id = NULL;
isert_put_conn(isert_conn);
......@@ -1006,35 +1000,51 @@ isert_cma_handler(struct rdma_cm_id *cma_id, struct rdma_cm_event *event)
}
static int
isert_post_recv(struct isert_conn *isert_conn, u32 count)
isert_post_recvm(struct isert_conn *isert_conn, u32 count)
{
struct ib_recv_wr *rx_wr, *rx_wr_failed;
int i, ret;
unsigned int rx_head = isert_conn->rx_desc_head;
struct iser_rx_desc *rx_desc;
for (rx_wr = isert_conn->rx_wr, i = 0; i < count; i++, rx_wr++) {
rx_desc = &isert_conn->rx_descs[rx_head];
rx_wr->wr_id = (uintptr_t)rx_desc;
rx_wr->sg_list = &rx_desc->rx_sg;
rx_wr->num_sge = 1;
rx_wr->next = rx_wr + 1;
rx_head = (rx_head + 1) & (ISERT_QP_MAX_RECV_DTOS - 1);
rx_desc = &isert_conn->rx_descs[i];
rx_wr->wr_id = (uintptr_t)rx_desc;
rx_wr->sg_list = &rx_desc->rx_sg;
rx_wr->num_sge = 1;
rx_wr->next = rx_wr + 1;
}
rx_wr--;
rx_wr->next = NULL; /* mark end of work requests list */
isert_conn->post_recv_buf_count += count;
ret = ib_post_recv(isert_conn->qp, isert_conn->rx_wr,
&rx_wr_failed);
&rx_wr_failed);
if (ret) {
isert_err("ib_post_recv() failed with ret: %d\n", ret);
isert_conn->post_recv_buf_count -= count;
} else {
isert_dbg("Posted %d RX buffers\n", count);
isert_conn->rx_desc_head = rx_head;
}
return ret;
}
static int
isert_post_recv(struct isert_conn *isert_conn, struct iser_rx_desc *rx_desc)
{
struct ib_recv_wr *rx_wr_failed, rx_wr;
int ret;
rx_wr.wr_id = (uintptr_t)rx_desc;
rx_wr.sg_list = &rx_desc->rx_sg;
rx_wr.num_sge = 1;
rx_wr.next = NULL;
isert_conn->post_recv_buf_count++;
ret = ib_post_recv(isert_conn->qp, &rx_wr, &rx_wr_failed);
if (ret) {
isert_err("ib_post_recv() failed with ret: %d\n", ret);
isert_conn->post_recv_buf_count--;
}
return ret;
}
......@@ -1205,7 +1215,8 @@ isert_put_login_tx(struct iscsi_conn *conn, struct iscsi_login *login,
if (ret)
return ret;
ret = isert_post_recv(isert_conn, ISERT_MIN_POSTED_RX);
ret = isert_post_recvm(isert_conn,
ISERT_QP_MAX_RECV_DTOS);
if (ret)
return ret;
......@@ -1278,7 +1289,7 @@ isert_rx_login_req(struct isert_conn *isert_conn)
}
static struct iscsi_cmd
*isert_allocate_cmd(struct iscsi_conn *conn)
*isert_allocate_cmd(struct iscsi_conn *conn, struct iser_rx_desc *rx_desc)
{
struct isert_conn *isert_conn = conn->context;
struct isert_cmd *isert_cmd;
......@@ -1292,6 +1303,7 @@ static struct iscsi_cmd
isert_cmd = iscsit_priv_cmd(cmd);
isert_cmd->conn = isert_conn;
isert_cmd->iscsi_cmd = cmd;
isert_cmd->rx_desc = rx_desc;
return cmd;
}
......@@ -1303,9 +1315,9 @@ isert_handle_scsi_cmd(struct isert_conn *isert_conn,
{
struct iscsi_conn *conn = isert_conn->conn;
struct iscsi_scsi_req *hdr = (struct iscsi_scsi_req *)buf;
struct scatterlist *sg;
int imm_data, imm_data_len, unsol_data, sg_nents, rc;
bool dump_payload = false;
unsigned int data_len;
rc = iscsit_setup_scsi_cmd(conn, cmd, buf);
if (rc < 0)
......@@ -1314,7 +1326,10 @@ isert_handle_scsi_cmd(struct isert_conn *isert_conn,
imm_data = cmd->immediate_data;
imm_data_len = cmd->first_burst_len;
unsol_data = cmd->unsolicited_data;
data_len = cmd->se_cmd.data_length;
if (imm_data && imm_data_len == data_len)
cmd->se_cmd.se_cmd_flags |= SCF_PASSTHROUGH_SG_TO_MEM_NOALLOC;
rc = iscsit_process_scsi_cmd(conn, cmd, hdr);
if (rc < 0) {
return 0;
......@@ -1326,13 +1341,20 @@ isert_handle_scsi_cmd(struct isert_conn *isert_conn,
if (!imm_data)
return 0;
sg = &cmd->se_cmd.t_data_sg[0];
sg_nents = max(1UL, DIV_ROUND_UP(imm_data_len, PAGE_SIZE));
isert_dbg("Copying Immediate SG: %p sg_nents: %u from %p imm_data_len: %d\n",
sg, sg_nents, &rx_desc->data[0], imm_data_len);
sg_copy_from_buffer(sg, sg_nents, &rx_desc->data[0], imm_data_len);
if (imm_data_len != data_len) {
sg_nents = max(1UL, DIV_ROUND_UP(imm_data_len, PAGE_SIZE));
sg_copy_from_buffer(cmd->se_cmd.t_data_sg, sg_nents,
&rx_desc->data[0], imm_data_len);
isert_dbg("Copy Immediate sg_nents: %u imm_data_len: %d\n",
sg_nents, imm_data_len);
} else {
sg_init_table(&isert_cmd->sg, 1);
cmd->se_cmd.t_data_sg = &isert_cmd->sg;
cmd->se_cmd.t_data_nents = 1;
sg_set_buf(&isert_cmd->sg, &rx_desc->data[0], imm_data_len);
isert_dbg("Transfer Immediate imm_data_len: %d\n",
imm_data_len);
}
cmd->write_data_done += imm_data_len;
......@@ -1407,6 +1429,15 @@ isert_handle_iscsi_dataout(struct isert_conn *isert_conn,
if (rc < 0)
return rc;
/*
* multiple data-outs on the same command can arrive -
* so post the buffer before hand
*/
rc = isert_post_recv(isert_conn, rx_desc);
if (rc) {
isert_err("ib_post_recv failed with %d\n", rc);
return rc;
}
return 0;
}
......@@ -1479,7 +1510,7 @@ isert_rx_opcode(struct isert_conn *isert_conn, struct iser_rx_desc *rx_desc,
switch (opcode) {
case ISCSI_OP_SCSI_CMD:
cmd = isert_allocate_cmd(conn);
cmd = isert_allocate_cmd(conn, rx_desc);
if (!cmd)
break;
......@@ -1493,7 +1524,7 @@ isert_rx_opcode(struct isert_conn *isert_conn, struct iser_rx_desc *rx_desc,
rx_desc, (unsigned char *)hdr);
break;
case ISCSI_OP_NOOP_OUT:
cmd = isert_allocate_cmd(conn);
cmd = isert_allocate_cmd(conn, rx_desc);
if (!cmd)
break;
......@@ -1506,7 +1537,7 @@ isert_rx_opcode(struct isert_conn *isert_conn, struct iser_rx_desc *rx_desc,
(unsigned char *)hdr);
break;
case ISCSI_OP_SCSI_TMFUNC:
cmd = isert_allocate_cmd(conn);
cmd = isert_allocate_cmd(conn, rx_desc);
if (!cmd)
break;
......@@ -1514,22 +1545,20 @@ isert_rx_opcode(struct isert_conn *isert_conn, struct iser_rx_desc *rx_desc,
(unsigned char *)hdr);
break;
case ISCSI_OP_LOGOUT:
cmd = isert_allocate_cmd(conn);
cmd = isert_allocate_cmd(conn, rx_desc);
if (!cmd)
break;
ret = iscsit_handle_logout_cmd(conn, cmd, (unsigned char *)hdr);
break;
case ISCSI_OP_TEXT:
if (be32_to_cpu(hdr->ttt) != 0xFFFFFFFF) {
if (be32_to_cpu(hdr->ttt) != 0xFFFFFFFF)
cmd = iscsit_find_cmd_from_itt(conn, hdr->itt);
if (!cmd)
break;
} else {
cmd = isert_allocate_cmd(conn);
if (!cmd)
break;
}
else
cmd = isert_allocate_cmd(conn, rx_desc);
if (!cmd)
break;
isert_cmd = iscsit_priv_cmd(cmd);
ret = isert_handle_text_cmd(isert_conn, isert_cmd, cmd,
......@@ -1589,7 +1618,7 @@ isert_rcv_completion(struct iser_rx_desc *desc,
struct ib_device *ib_dev = isert_conn->cm_id->device;
struct iscsi_hdr *hdr;
u64 rx_dma;
int rx_buflen, outstanding;
int rx_buflen;
if ((char *)desc == isert_conn->login_req_buf) {
rx_dma = isert_conn->login_req_dma;
......@@ -1629,22 +1658,6 @@ isert_rcv_completion(struct iser_rx_desc *desc,
DMA_FROM_DEVICE);
isert_conn->post_recv_buf_count--;
isert_dbg("Decremented post_recv_buf_count: %d\n",
isert_conn->post_recv_buf_count);
if ((char *)desc == isert_conn->login_req_buf)
return;
outstanding = isert_conn->post_recv_buf_count;
if (outstanding + ISERT_MIN_POSTED_RX <= ISERT_QP_MAX_RECV_DTOS) {
int err, count = min(ISERT_QP_MAX_RECV_DTOS - outstanding,
ISERT_MIN_POSTED_RX);
err = isert_post_recv(isert_conn, count);
if (err) {
isert_err("isert_post_recv() count: %d failed, %d\n",
count, err);
}
}
}
static int
......@@ -2156,6 +2169,12 @@ isert_post_response(struct isert_conn *isert_conn, struct isert_cmd *isert_cmd)
struct ib_send_wr *wr_failed;
int ret;
ret = isert_post_recv(isert_conn, isert_cmd->rx_desc);
if (ret) {
isert_err("ib_post_recv failed with %d\n", ret);
return ret;
}
ret = ib_post_send(isert_conn->qp, &isert_cmd->tx_desc.send_wr,
&wr_failed);
if (ret) {
......@@ -2950,6 +2969,12 @@ isert_put_datain(struct iscsi_conn *conn, struct iscsi_cmd *cmd)
&isert_cmd->tx_desc.send_wr);
isert_cmd->rdma_wr.s_send_wr.next = &isert_cmd->tx_desc.send_wr;
wr->send_wr_num += 1;
rc = isert_post_recv(isert_conn, isert_cmd->rx_desc);
if (rc) {
isert_err("ib_post_recv failed with %d\n", rc);
return rc;
}
}
rc = ib_post_send(isert_conn->qp, wr->send_wr, &wr_failed);
......@@ -2999,9 +3024,16 @@ isert_get_dataout(struct iscsi_conn *conn, struct iscsi_cmd *cmd, bool recovery)
static int
isert_immediate_queue(struct iscsi_conn *conn, struct iscsi_cmd *cmd, int state)
{
int ret;
struct isert_cmd *isert_cmd = iscsit_priv_cmd(cmd);
int ret = 0;
switch (state) {
case ISTATE_REMOVE:
spin_lock_bh(&conn->cmd_lock);
list_del_init(&cmd->i_conn_node);
spin_unlock_bh(&conn->cmd_lock);
isert_put_cmd(isert_cmd, true);
break;
case ISTATE_SEND_NOPIN_WANT_RESPONSE:
ret = isert_put_nopin(cmd, conn, false);
break;
......@@ -3106,10 +3138,10 @@ isert_setup_np(struct iscsi_np *np,
isert_err("Unable to allocate struct isert_np\n");
return -ENOMEM;
}
sema_init(&isert_np->np_sem, 0);
mutex_init(&isert_np->np_accept_mutex);
INIT_LIST_HEAD(&isert_np->np_accept_list);
init_completion(&isert_np->np_login_comp);
sema_init(&isert_np->sem, 0);
mutex_init(&isert_np->mutex);
INIT_LIST_HEAD(&isert_np->accepted);
INIT_LIST_HEAD(&isert_np->pending);
isert_np->np = np;
/*
......@@ -3125,7 +3157,7 @@ isert_setup_np(struct iscsi_np *np,
goto out;
}
isert_np->np_cm_id = isert_lid;
isert_np->cm_id = isert_lid;
np->np_context = isert_np;
return 0;
......@@ -3214,7 +3246,7 @@ isert_accept_np(struct iscsi_np *np, struct iscsi_conn *conn)
int ret;
accept_wait:
ret = down_interruptible(&isert_np->np_sem);
ret = down_interruptible(&isert_np->sem);
if (ret)
return -ENODEV;
......@@ -3231,15 +3263,15 @@ isert_accept_np(struct iscsi_np *np, struct iscsi_conn *conn)
}
spin_unlock_bh(&np->np_thread_lock);
mutex_lock(&isert_np->np_accept_mutex);
if (list_empty(&isert_np->np_accept_list)) {
mutex_unlock(&isert_np->np_accept_mutex);
mutex_lock(&isert_np->mutex);
if (list_empty(&isert_np->pending)) {
mutex_unlock(&isert_np->mutex);
goto accept_wait;
}
isert_conn = list_first_entry(&isert_np->np_accept_list,
struct isert_conn, accept_node);
list_del_init(&isert_conn->accept_node);
mutex_unlock(&isert_np->np_accept_mutex);
isert_conn = list_first_entry(&isert_np->pending,
struct isert_conn, node);
list_del_init(&isert_conn->node);
mutex_unlock(&isert_np->mutex);
conn->context = isert_conn;
isert_conn->conn = conn;
......@@ -3257,28 +3289,39 @@ isert_free_np(struct iscsi_np *np)
struct isert_np *isert_np = np->np_context;
struct isert_conn *isert_conn, *n;
if (isert_np->np_cm_id)
rdma_destroy_id(isert_np->np_cm_id);
if (isert_np->cm_id)
rdma_destroy_id(isert_np->cm_id);
/*
* FIXME: At this point we don't have a good way to insure
* that at this point we don't have hanging connections that
* completed RDMA establishment but didn't start iscsi login
* process. So work-around this by cleaning up what ever piled
* up in np_accept_list.
* up in accepted and pending lists.
*/
mutex_lock(&isert_np->np_accept_mutex);
if (!list_empty(&isert_np->np_accept_list)) {
isert_info("Still have isert connections, cleaning up...\n");
mutex_lock(&isert_np->mutex);
if (!list_empty(&isert_np->pending)) {
isert_info("Still have isert pending connections\n");
list_for_each_entry_safe(isert_conn, n,
&isert_np->pending,
node) {
isert_info("cleaning isert_conn %p state (%d)\n",
isert_conn, isert_conn->state);
isert_connect_release(isert_conn);
}
}
if (!list_empty(&isert_np->accepted)) {
isert_info("Still have isert accepted connections\n");
list_for_each_entry_safe(isert_conn, n,
&isert_np->np_accept_list,
accept_node) {
&isert_np->accepted,
node) {
isert_info("cleaning isert_conn %p state (%d)\n",
isert_conn, isert_conn->state);
isert_connect_release(isert_conn);
}
}
mutex_unlock(&isert_np->np_accept_mutex);
mutex_unlock(&isert_np->mutex);
np->np_context = NULL;
kfree(isert_np);
......@@ -3345,6 +3388,41 @@ isert_wait4flush(struct isert_conn *isert_conn)
wait_for_completion(&isert_conn->wait_comp_err);
}
/**
* isert_put_unsol_pending_cmds() - Drop commands waiting for
* unsolicitate dataout
* @conn: iscsi connection
*
* We might still have commands that are waiting for unsolicited
* dataouts messages. We must put the extra reference on those
* before blocking on the target_wait_for_session_cmds
*/
static void
isert_put_unsol_pending_cmds(struct iscsi_conn *conn)
{
struct iscsi_cmd *cmd, *tmp;
static LIST_HEAD(drop_cmd_list);
spin_lock_bh(&conn->cmd_lock);
list_for_each_entry_safe(cmd, tmp, &conn->conn_cmd_list, i_conn_node) {
if ((cmd->cmd_flags & ICF_NON_IMMEDIATE_UNSOLICITED_DATA) &&
(cmd->write_data_done < conn->sess->sess_ops->FirstBurstLength) &&
(cmd->write_data_done < cmd->se_cmd.data_length))
list_move_tail(&cmd->i_conn_node, &drop_cmd_list);
}
spin_unlock_bh(&conn->cmd_lock);
list_for_each_entry_safe(cmd, tmp, &drop_cmd_list, i_conn_node) {
list_del_init(&cmd->i_conn_node);
if (cmd->i_state != ISTATE_REMOVE) {
struct isert_cmd *isert_cmd = iscsit_priv_cmd(cmd);
isert_info("conn %p dropping cmd %p\n", conn, cmd);
isert_put_cmd(isert_cmd, true);
}
}
}
static void isert_wait_conn(struct iscsi_conn *conn)
{
struct isert_conn *isert_conn = conn->context;
......@@ -3363,8 +3441,9 @@ static void isert_wait_conn(struct iscsi_conn *conn)
isert_conn_terminate(isert_conn);
mutex_unlock(&isert_conn->mutex);
isert_wait4cmds(conn);
isert_wait4flush(isert_conn);
isert_put_unsol_pending_cmds(conn);
isert_wait4cmds(conn);
isert_wait4logout(isert_conn);
queue_work(isert_release_wq, &isert_conn->release_work);
......
......@@ -113,7 +113,6 @@ enum {
};
struct isert_rdma_wr {
struct list_head wr_list;
struct isert_cmd *isert_cmd;
enum iser_ib_op_code iser_ib_op;
struct ib_sge *ib_sge;
......@@ -134,14 +133,13 @@ struct isert_cmd {
uint64_t write_va;
u64 pdu_buf_dma;
u32 pdu_buf_len;
u32 read_va_off;
u32 write_va_off;
u32 rdma_wr_num;
struct isert_conn *conn;
struct iscsi_cmd *iscsi_cmd;
struct iser_tx_desc tx_desc;
struct iser_rx_desc *rx_desc;
struct isert_rdma_wr rdma_wr;
struct work_struct comp_work;
struct scatterlist sg;
};
struct isert_device;
......@@ -159,11 +157,10 @@ struct isert_conn {
u64 login_req_dma;
int login_req_len;
u64 login_rsp_dma;
unsigned int rx_desc_head;
struct iser_rx_desc *rx_descs;
struct ib_recv_wr rx_wr[ISERT_MIN_POSTED_RX];
struct ib_recv_wr rx_wr[ISERT_QP_MAX_RECV_DTOS];
struct iscsi_conn *conn;
struct list_head accept_node;
struct list_head node;
struct completion login_comp;
struct completion login_req_comp;
struct iser_tx_desc login_tx_desc;
......@@ -222,9 +219,9 @@ struct isert_device {
struct isert_np {
struct iscsi_np *np;
struct semaphore np_sem;
struct rdma_cm_id *np_cm_id;
struct mutex np_accept_mutex;
struct list_head np_accept_list;
struct completion np_login_comp;
struct semaphore sem;
struct rdma_cm_id *cm_id;
struct mutex mutex<