wait_for_completion(&target->done);
}
+static bool srp_change_state(struct srp_target_port *target,
+ enum srp_target_state old,
+ enum srp_target_state new)
+{
+ bool changed = false;
+
+ spin_lock_irq(&target->lock);
+ if (target->state == old) {
+ target->state = new;
+ changed = true;
+ }
+ spin_unlock_irq(&target->lock);
+ return changed;
+}
+
static void srp_remove_work(struct work_struct *work)
{
struct srp_target_port *target =
container_of(work, struct srp_target_port, work);
- spin_lock_irq(target->scsi_host->host_lock);
- if (target->state != SRP_TARGET_DEAD) {
- spin_unlock_irq(target->scsi_host->host_lock);
+ if (!srp_change_state(target, SRP_TARGET_DEAD, SRP_TARGET_REMOVED))
return;
- }
- target->state = SRP_TARGET_REMOVED;
- spin_unlock_irq(target->scsi_host->host_lock);
spin_lock(&target->srp_host->target_lock);
list_del(&target->list);
scsi_sg_count(scmnd), scmnd->sc_data_direction);
}
-static void srp_remove_req(struct srp_target_port *target, struct srp_request *req)
+static void srp_remove_req(struct srp_target_port *target,
+ struct srp_request *req, s32 req_lim_delta)
{
+ unsigned long flags;
+
srp_unmap_data(req->scmnd, target, req);
- list_move_tail(&req->list, &target->free_reqs);
+ spin_lock_irqsave(&target->lock, flags);
+ target->req_lim += req_lim_delta;
+ req->scmnd = NULL;
+ list_add_tail(&req->list, &target->free_reqs);
+ spin_unlock_irqrestore(&target->lock, flags);
}
static void srp_reset_req(struct srp_target_port *target, struct srp_request *req)
{
req->scmnd->result = DID_RESET << 16;
req->scmnd->scsi_done(req->scmnd);
- srp_remove_req(target, req);
+ srp_remove_req(target, req, 0);
}
static int srp_reconnect_target(struct srp_target_port *target)
{
struct ib_qp_attr qp_attr;
- struct srp_request *req, *tmp;
struct ib_wc wc;
- int ret;
+ int i, ret;
- spin_lock_irq(target->scsi_host->host_lock);
- if (target->state != SRP_TARGET_LIVE) {
- spin_unlock_irq(target->scsi_host->host_lock);
+ if (!srp_change_state(target, SRP_TARGET_LIVE, SRP_TARGET_CONNECTING))
return -EAGAIN;
- }
- target->state = SRP_TARGET_CONNECTING;
- spin_unlock_irq(target->scsi_host->host_lock);
srp_disconnect_target(target);
/*
while (ib_poll_cq(target->send_cq, 1, &wc) > 0)
; /* nothing */
- spin_lock_irq(target->scsi_host->host_lock);
- list_for_each_entry_safe(req, tmp, &target->req_queue, list)
- srp_reset_req(target, req);
- spin_unlock_irq(target->scsi_host->host_lock);
+ for (i = 0; i < SRP_CMD_SQ_SIZE; ++i) {
+ struct srp_request *req = &target->req_ring[i];
+ if (req->scmnd)
+ srp_reset_req(target, req);
+ }
- target->rx_head = 0;
- target->tx_head = 0;
- target->tx_tail = 0;
+ INIT_LIST_HEAD(&target->free_tx);
+ for (i = 0; i < SRP_SQ_SIZE; ++i)
+ list_add(&target->tx_ring[i]->list, &target->free_tx);
target->qp_in_error = 0;
ret = srp_connect_target(target);
if (ret)
goto err;
- spin_lock_irq(target->scsi_host->host_lock);
- if (target->state == SRP_TARGET_CONNECTING) {
- ret = 0;
- target->state = SRP_TARGET_LIVE;
- } else
+ if (!srp_change_state(target, SRP_TARGET_CONNECTING, SRP_TARGET_LIVE))
ret = -EAGAIN;
- spin_unlock_irq(target->scsi_host->host_lock);
return ret;
/*
* We couldn't reconnect, so kill our target port off.
- * However, we have to defer the real removal because we might
- * be in the context of the SCSI error handler now, which
- * would deadlock if we call scsi_remove_host().
+ * However, we have to defer the real removal because we
+ * are in the context of the SCSI error handler now, which
+ * will deadlock if we call scsi_remove_host().
+ *
+ * Schedule our work inside the lock to avoid a race with
+ * the flush_scheduled_work() in srp_remove_one().
*/
- spin_lock_irq(target->scsi_host->host_lock);
+ spin_lock_irq(&target->lock);
if (target->state == SRP_TARGET_CONNECTING) {
target->state = SRP_TARGET_DEAD;
INIT_WORK(&target->work, srp_remove_work);
- schedule_work(&target->work);
+ queue_work(ib_wq, &target->work);
}
- spin_unlock_irq(target->scsi_host->host_lock);
+ spin_unlock_irq(&target->lock);
return ret;
}
struct srp_direct_buf *buf = (void *) cmd->add_data;
buf->va = cpu_to_be64(ib_sg_dma_address(ibdev, scat));
- buf->key = cpu_to_be32(dev->mr->rkey);
+ buf->key = cpu_to_be32(target->rkey);
buf->len = cpu_to_be32(ib_sg_dma_len(ibdev, scat));
} else if (srp_map_fmr(target, scat, count, req,
(void *) cmd->add_data)) {
buf->desc_list[i].va =
cpu_to_be64(ib_sg_dma_address(ibdev, sg));
buf->desc_list[i].key =
- cpu_to_be32(dev->mr->rkey);
+ cpu_to_be32(target->rkey);
buf->desc_list[i].len = cpu_to_be32(dma_len);
datalen += dma_len;
}
buf->table_desc.va =
cpu_to_be64(req->cmd->dma + sizeof *cmd + sizeof *buf);
buf->table_desc.key =
- cpu_to_be32(target->srp_host->srp_dev->mr->rkey);
+ cpu_to_be32(target->rkey);
buf->table_desc.len =
cpu_to_be32(count * sizeof (struct srp_direct_buf));
}
/*
- * Must be called with target->scsi_host->host_lock held to protect
- * req_lim and tx_head. Lock cannot be dropped between call here and
- * call to __srp_post_send().
+ * Return an IU and possible credit to the free pool
+ */
+static void srp_put_tx_iu(struct srp_target_port *target, struct srp_iu *iu,
+ enum srp_iu_type iu_type)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&target->lock, flags);
+ list_add(&iu->list, &target->free_tx);
+ if (iu_type != SRP_IU_RSP)
+ ++target->req_lim;
+ spin_unlock_irqrestore(&target->lock, flags);
+}
+
+/*
+ * Must be called with target->lock held to protect req_lim and free_tx.
+ * If IU is not sent, it must be returned using srp_put_tx_iu().
*
* Note:
* An upper limit for the number of allocated information units for each
srp_send_completion(target->send_cq, target);
- if (target->tx_head - target->tx_tail >= SRP_SQ_SIZE)
+ if (list_empty(&target->free_tx))
return NULL;
/* Initiator responses to target requests do not consume credits */
- if (target->req_lim <= rsv && iu_type != SRP_IU_RSP) {
- ++target->zero_req_lim;
- return NULL;
+ if (iu_type != SRP_IU_RSP) {
+ if (target->req_lim <= rsv) {
+ ++target->zero_req_lim;
+ return NULL;
+ }
+
+ --target->req_lim;
}
- iu = target->tx_ring[target->tx_head & SRP_SQ_MASK];
- iu->type = iu_type;
+ iu = list_first_entry(&target->free_tx, struct srp_iu, list);
+ list_del(&iu->list);
return iu;
}
-/*
- * Must be called with target->scsi_host->host_lock held to protect
- * req_lim and tx_head.
- */
-static int __srp_post_send(struct srp_target_port *target,
- struct srp_iu *iu, int len)
+static int srp_post_send(struct srp_target_port *target,
+ struct srp_iu *iu, int len)
{
struct ib_sge list;
struct ib_send_wr wr, *bad_wr;
- int ret = 0;
list.addr = iu->dma;
list.length = len;
- list.lkey = target->srp_host->srp_dev->mr->lkey;
+ list.lkey = target->lkey;
wr.next = NULL;
- wr.wr_id = target->tx_head & SRP_SQ_MASK;
+ wr.wr_id = (uintptr_t) iu;
wr.sg_list = &list;
wr.num_sge = 1;
wr.opcode = IB_WR_SEND;
wr.send_flags = IB_SEND_SIGNALED;
- ret = ib_post_send(target->qp, &wr, &bad_wr);
-
- if (!ret) {
- ++target->tx_head;
- if (iu->type != SRP_IU_RSP)
- --target->req_lim;
- }
-
- return ret;
+ return ib_post_send(target->qp, &wr, &bad_wr);
}
-static int srp_post_recv(struct srp_target_port *target)
+static int srp_post_recv(struct srp_target_port *target, struct srp_iu *iu)
{
- unsigned long flags;
- struct srp_iu *iu;
- struct ib_sge list;
struct ib_recv_wr wr, *bad_wr;
- unsigned int next;
- int ret;
-
- spin_lock_irqsave(target->scsi_host->host_lock, flags);
-
- next = target->rx_head & SRP_RQ_MASK;
- wr.wr_id = next;
- iu = target->rx_ring[next];
+ struct ib_sge list;
list.addr = iu->dma;
list.length = iu->size;
- list.lkey = target->srp_host->srp_dev->mr->lkey;
+ list.lkey = target->lkey;
wr.next = NULL;
+ wr.wr_id = (uintptr_t) iu;
wr.sg_list = &list;
wr.num_sge = 1;
- ret = ib_post_recv(target->qp, &wr, &bad_wr);
- if (!ret)
- ++target->rx_head;
-
- spin_unlock_irqrestore(target->scsi_host->host_lock, flags);
-
- return ret;
+ return ib_post_recv(target->qp, &wr, &bad_wr);
}
static void srp_process_rsp(struct srp_target_port *target, struct srp_rsp *rsp)
struct srp_request *req;
struct scsi_cmnd *scmnd;
unsigned long flags;
- s32 delta;
-
- delta = (s32) be32_to_cpu(rsp->req_lim_delta);
-
- spin_lock_irqsave(target->scsi_host->host_lock, flags);
-
- target->req_lim += delta;
-
- req = &target->req_ring[rsp->tag & ~SRP_TAG_TSK_MGMT];
if (unlikely(rsp->tag & SRP_TAG_TSK_MGMT)) {
- if (be32_to_cpu(rsp->resp_data_len) < 4)
- req->tsk_status = -1;
- else
- req->tsk_status = rsp->data[3];
- complete(&req->done);
+ spin_lock_irqsave(&target->lock, flags);
+ target->req_lim += be32_to_cpu(rsp->req_lim_delta);
+ spin_unlock_irqrestore(&target->lock, flags);
+
+ target->tsk_mgmt_status = -1;
+ if (be32_to_cpu(rsp->resp_data_len) >= 4)
+ target->tsk_mgmt_status = rsp->data[3];
+ complete(&target->tsk_mgmt_done);
} else {
+ req = &target->req_ring[rsp->tag];
scmnd = req->scmnd;
if (!scmnd)
shost_printk(KERN_ERR, target->scsi_host,
else if (rsp->flags & (SRP_RSP_FLAG_DIOVER | SRP_RSP_FLAG_DIUNDER))
scsi_set_resid(scmnd, be32_to_cpu(rsp->data_in_res_cnt));
- if (!req->tsk_mgmt) {
- scmnd->host_scribble = (void *) -1L;
- scmnd->scsi_done(scmnd);
-
- srp_remove_req(target, req);
- } else
- req->cmd_done = 1;
+ srp_remove_req(target, req, be32_to_cpu(rsp->req_lim_delta));
+ scmnd->host_scribble = NULL;
+ scmnd->scsi_done(scmnd);
}
-
- spin_unlock_irqrestore(target->scsi_host->host_lock, flags);
}
static int srp_response_common(struct srp_target_port *target, s32 req_delta,
void *rsp, int len)
{
- struct ib_device *dev;
+ struct ib_device *dev = target->srp_host->srp_dev->dev;
unsigned long flags;
struct srp_iu *iu;
- int err = 1;
-
- dev = target->srp_host->srp_dev->dev;
+ int err;
- spin_lock_irqsave(target->scsi_host->host_lock, flags);
+ spin_lock_irqsave(&target->lock, flags);
target->req_lim += req_delta;
-
iu = __srp_get_tx_iu(target, SRP_IU_RSP);
+ spin_unlock_irqrestore(&target->lock, flags);
+
if (!iu) {
shost_printk(KERN_ERR, target->scsi_host, PFX
"no IU available to send response\n");
- goto out;
+ return 1;
}
ib_dma_sync_single_for_cpu(dev, iu->dma, len, DMA_TO_DEVICE);
memcpy(iu->buf, rsp, len);
ib_dma_sync_single_for_device(dev, iu->dma, len, DMA_TO_DEVICE);
- err = __srp_post_send(target, iu, len);
- if (err)
+ err = srp_post_send(target, iu, len);
+ if (err) {
shost_printk(KERN_ERR, target->scsi_host, PFX
"unable to post response: %d\n", err);
+ srp_put_tx_iu(target, iu, SRP_IU_RSP);
+ }
-out:
- spin_unlock_irqrestore(target->scsi_host->host_lock, flags);
return err;
}
static void srp_handle_recv(struct srp_target_port *target, struct ib_wc *wc)
{
- struct ib_device *dev;
- struct srp_iu *iu;
+ struct ib_device *dev = target->srp_host->srp_dev->dev;
+ struct srp_iu *iu = (struct srp_iu *) wc->wr_id;
int res;
u8 opcode;
- iu = target->rx_ring[wc->wr_id];
-
- dev = target->srp_host->srp_dev->dev;
ib_dma_sync_single_for_cpu(dev, iu->dma, target->max_ti_iu_len,
DMA_FROM_DEVICE);
ib_dma_sync_single_for_device(dev, iu->dma, target->max_ti_iu_len,
DMA_FROM_DEVICE);
- res = srp_post_recv(target);
+ res = srp_post_recv(target, iu);
if (res != 0)
shost_printk(KERN_ERR, target->scsi_host,
PFX "Recv failed with error code %d\n", res);
{
struct srp_target_port *target = target_ptr;
struct ib_wc wc;
+ struct srp_iu *iu;
while (ib_poll_cq(cq, 1, &wc) > 0) {
if (wc.status) {
break;
}
- ++target->tx_tail;
+ iu = (struct srp_iu *) wc.wr_id;
+ list_add(&iu->list, &target->free_tx);
}
}
-static int srp_queuecommand_lck(struct scsi_cmnd *scmnd,
- void (*done)(struct scsi_cmnd *))
+static int srp_queuecommand(struct Scsi_Host *shost, struct scsi_cmnd *scmnd)
{
- struct srp_target_port *target = host_to_target(scmnd->device->host);
+ struct srp_target_port *target = host_to_target(shost);
struct srp_request *req;
struct srp_iu *iu;
struct srp_cmd *cmd;
struct ib_device *dev;
+ unsigned long flags;
int len;
if (target->state == SRP_TARGET_CONNECTING)
if (target->state == SRP_TARGET_DEAD ||
target->state == SRP_TARGET_REMOVED) {
scmnd->result = DID_BAD_TARGET << 16;
- done(scmnd);
+ scmnd->scsi_done(scmnd);
return 0;
}
+ spin_lock_irqsave(&target->lock, flags);
iu = __srp_get_tx_iu(target, SRP_IU_CMD);
if (!iu)
- goto err;
+ goto err_unlock;
+
+ req = list_first_entry(&target->free_reqs, struct srp_request, list);
+ list_del(&req->list);
+ spin_unlock_irqrestore(&target->lock, flags);
dev = target->srp_host->srp_dev->dev;
ib_dma_sync_single_for_cpu(dev, iu->dma, srp_max_iu_len,
DMA_TO_DEVICE);
- req = list_first_entry(&target->free_reqs, struct srp_request, list);
-
- scmnd->scsi_done = done;
scmnd->result = 0;
- scmnd->host_scribble = (void *) (long) req->index;
+ scmnd->host_scribble = (void *) req;
cmd = iu->buf;
memset(cmd, 0, sizeof *cmd);
req->scmnd = scmnd;
req->cmd = iu;
- req->cmd_done = 0;
- req->tsk_mgmt = NULL;
len = srp_map_data(scmnd, target, req);
if (len < 0) {
shost_printk(KERN_ERR, target->scsi_host,
PFX "Failed to map data\n");
- goto err;
+ goto err_iu;
}
ib_dma_sync_single_for_device(dev, iu->dma, srp_max_iu_len,
DMA_TO_DEVICE);
- if (__srp_post_send(target, iu, len)) {
+ if (srp_post_send(target, iu, len)) {
shost_printk(KERN_ERR, target->scsi_host, PFX "Send failed\n");
goto err_unmap;
}
- list_move_tail(&req->list, &target->req_queue);
-
return 0;
err_unmap:
srp_unmap_data(scmnd, target, req);
+err_iu:
+ srp_put_tx_iu(target, iu, SRP_IU_CMD);
+
+ spin_lock_irqsave(&target->lock, flags);
+ list_add(&req->list, &target->free_reqs);
+
+err_unlock:
+ spin_unlock_irqrestore(&target->lock, flags);
+
err:
return SCSI_MLQUEUE_HOST_BUSY;
}
-static DEF_SCSI_QCMD(srp_queuecommand)
-
static int srp_alloc_iu_bufs(struct srp_target_port *target)
{
int i;
GFP_KERNEL, DMA_TO_DEVICE);
if (!target->tx_ring[i])
goto err;
+
+ list_add(&target->tx_ring[i]->list, &target->free_tx);
}
return 0;
break;
for (i = 0; i < SRP_RQ_SIZE; i++) {
- target->status = srp_post_recv(target);
+ struct srp_iu *iu = target->rx_ring[i];
+ target->status = srp_post_recv(target, iu);
if (target->status)
break;
}
}
static int srp_send_tsk_mgmt(struct srp_target_port *target,
- struct srp_request *req, u8 func)
+ u64 req_tag, unsigned int lun, u8 func)
{
struct ib_device *dev = target->srp_host->srp_dev->dev;
struct srp_iu *iu;
struct srp_tsk_mgmt *tsk_mgmt;
- spin_lock_irq(target->scsi_host->host_lock);
-
if (target->state == SRP_TARGET_DEAD ||
- target->state == SRP_TARGET_REMOVED) {
- req->scmnd->result = DID_BAD_TARGET << 16;
- goto out;
- }
+ target->state == SRP_TARGET_REMOVED)
+ return -1;
- init_completion(&req->done);
+ init_completion(&target->tsk_mgmt_done);
+ spin_lock_irq(&target->lock);
iu = __srp_get_tx_iu(target, SRP_IU_TSK_MGMT);
+ spin_unlock_irq(&target->lock);
+
if (!iu)
- goto out;
+ return -1;
ib_dma_sync_single_for_cpu(dev, iu->dma, sizeof *tsk_mgmt,
DMA_TO_DEVICE);
memset(tsk_mgmt, 0, sizeof *tsk_mgmt);
tsk_mgmt->opcode = SRP_TSK_MGMT;
- tsk_mgmt->lun = cpu_to_be64((u64) req->scmnd->device->lun << 48);
- tsk_mgmt->tag = req->index | SRP_TAG_TSK_MGMT;
+ tsk_mgmt->lun = cpu_to_be64((u64) lun << 48);
+ tsk_mgmt->tag = req_tag | SRP_TAG_TSK_MGMT;
tsk_mgmt->tsk_mgmt_func = func;
- tsk_mgmt->task_tag = req->index;
+ tsk_mgmt->task_tag = req_tag;
ib_dma_sync_single_for_device(dev, iu->dma, sizeof *tsk_mgmt,
DMA_TO_DEVICE);
- if (__srp_post_send(target, iu, sizeof *tsk_mgmt))
- goto out;
-
- req->tsk_mgmt = iu;
-
- spin_unlock_irq(target->scsi_host->host_lock);
-
- if (!wait_for_completion_timeout(&req->done,
- msecs_to_jiffies(SRP_ABORT_TIMEOUT_MS)))
+ if (srp_post_send(target, iu, sizeof *tsk_mgmt)) {
+ srp_put_tx_iu(target, iu, SRP_IU_TSK_MGMT);
return -1;
+ }
- return 0;
-
-out:
- spin_unlock_irq(target->scsi_host->host_lock);
- return -1;
-}
-
-static int srp_find_req(struct srp_target_port *target,
- struct scsi_cmnd *scmnd,
- struct srp_request **req)
-{
- if (scmnd->host_scribble == (void *) -1L)
+ if (!wait_for_completion_timeout(&target->tsk_mgmt_done,
+ msecs_to_jiffies(SRP_ABORT_TIMEOUT_MS)))
return -1;
- *req = &target->req_ring[(long) scmnd->host_scribble];
-
return 0;
}
static int srp_abort(struct scsi_cmnd *scmnd)
{
struct srp_target_port *target = host_to_target(scmnd->device->host);
- struct srp_request *req;
+ struct srp_request *req = (struct srp_request *) scmnd->host_scribble;
int ret = SUCCESS;
shost_printk(KERN_ERR, target->scsi_host, "SRP abort called\n");
- if (target->qp_in_error)
+ if (!req || target->qp_in_error)
return FAILED;
- if (srp_find_req(target, scmnd, &req))
+ if (srp_send_tsk_mgmt(target, req->index, scmnd->device->lun,
+ SRP_TSK_ABORT_TASK))
return FAILED;
- if (srp_send_tsk_mgmt(target, req, SRP_TSK_ABORT_TASK))
- return FAILED;
-
- spin_lock_irq(target->scsi_host->host_lock);
- if (req->cmd_done) {
- srp_remove_req(target, req);
- scmnd->scsi_done(scmnd);
- } else if (!req->tsk_status) {
- srp_remove_req(target, req);
- scmnd->result = DID_ABORT << 16;
- } else
- ret = FAILED;
-
- spin_unlock_irq(target->scsi_host->host_lock);
+ if (req->scmnd) {
+ if (!target->tsk_mgmt_status) {
+ srp_remove_req(target, req, 0);
+ scmnd->result = DID_ABORT << 16;
+ } else
+ ret = FAILED;
+ }
return ret;
}
static int srp_reset_device(struct scsi_cmnd *scmnd)
{
struct srp_target_port *target = host_to_target(scmnd->device->host);
- struct srp_request *req, *tmp;
+ int i;
shost_printk(KERN_ERR, target->scsi_host, "SRP reset_device called\n");
if (target->qp_in_error)
return FAILED;
- if (srp_find_req(target, scmnd, &req))
+ if (srp_send_tsk_mgmt(target, SRP_TAG_NO_REQ, scmnd->device->lun,
+ SRP_TSK_LUN_RESET))
return FAILED;
- if (srp_send_tsk_mgmt(target, req, SRP_TSK_LUN_RESET))
+ if (target->tsk_mgmt_status)
return FAILED;
- if (req->tsk_status)
- return FAILED;
-
- spin_lock_irq(target->scsi_host->host_lock);
- list_for_each_entry_safe(req, tmp, &target->req_queue, list)
- if (req->scmnd->device == scmnd->device)
+ for (i = 0; i < SRP_CMD_SQ_SIZE; ++i) {
+ struct srp_request *req = &target->req_ring[i];
+ if (req->scmnd && req->scmnd->device == scmnd->device)
srp_reset_req(target, req);
-
- spin_unlock_irq(target->scsi_host->host_lock);
+ }
return SUCCESS;
}
target->io_class = SRP_REV16A_IB_IO_CLASS;
target->scsi_host = target_host;
target->srp_host = host;
+ target->lkey = host->srp_dev->mr->lkey;
+ target->rkey = host->srp_dev->mr->rkey;
+ spin_lock_init(&target->lock);
+ INIT_LIST_HEAD(&target->free_tx);
INIT_LIST_HEAD(&target->free_reqs);
- INIT_LIST_HEAD(&target->req_queue);
for (i = 0; i < SRP_CMD_SQ_SIZE; ++i) {
target->req_ring[i].index = i;
list_add_tail(&target->req_ring[i].list, &target->free_reqs);
*/
spin_lock(&host->target_lock);
list_for_each_entry(target, &host->target_list, list) {
- spin_lock_irq(target->scsi_host->host_lock);
+ spin_lock_irq(&target->lock);
target->state = SRP_TARGET_REMOVED;
- spin_unlock_irq(target->scsi_host->host_lock);
+ spin_unlock_irq(&target->lock);
}
spin_unlock(&host->target_lock);
* started before we marked our target ports as
* removed, and any target port removal tasks.
*/
- flush_scheduled_work();
+ flush_workqueue(ib_wq);
list_for_each_entry_safe(target, tmp_target,
&host->target_list, list) {
{
int ret;
- BUILD_BUG_ON_NOT_POWER_OF_2(SRP_SQ_SIZE);
- BUILD_BUG_ON_NOT_POWER_OF_2(SRP_RQ_SIZE);
+ BUILD_BUG_ON(FIELD_SIZEOF(struct ib_wc, wr_id) < sizeof(void *));
if (srp_sg_tablesize > 255) {
printk(KERN_WARNING PFX "Clamping srp_sg_tablesize to 255\n");
projects / mv-sheeva.git / blobdiff