* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*
- * $Id: mad.c 2817 2005-07-07 11:29:26Z halr $
+ * $Id: mad.c 5596 2006-03-03 01:00:07Z sean.hefty $
*/
#include <linux/dma-mapping.h>
if (!is_vendor_oui(mad_reg_req->oui))
goto error1;
}
+ /* Make sure class supplied is consistent with RMPP */
+ if (!ib_is_mad_class_rmpp(mad_reg_req->mgmt_class)) {
+ if (rmpp_version)
+ goto error1;
+ }
/* Make sure class supplied is consistent with QP type */
if (qp_type == IB_QPT_SMI) {
if ((mad_reg_req->mgmt_class !=
INIT_WORK(&mad_agent_priv->local_work, local_completions,
mad_agent_priv);
atomic_set(&mad_agent_priv->refcount, 1);
- init_waitqueue_head(&mad_agent_priv->wait);
+ init_completion(&mad_agent_priv->comp);
return &mad_agent_priv->agent;
mad_snoop_priv->agent.qp = port_priv->qp_info[qpn].qp;
mad_snoop_priv->agent.port_num = port_num;
mad_snoop_priv->mad_snoop_flags = mad_snoop_flags;
- init_waitqueue_head(&mad_snoop_priv->wait);
+ init_completion(&mad_snoop_priv->comp);
mad_snoop_priv->snoop_index = register_snoop_agent(
&port_priv->qp_info[qpn],
mad_snoop_priv);
}
EXPORT_SYMBOL(ib_register_mad_snoop);
+static inline void deref_mad_agent(struct ib_mad_agent_private *mad_agent_priv)
+{
+ if (atomic_dec_and_test(&mad_agent_priv->refcount))
+ complete(&mad_agent_priv->comp);
+}
+
+static inline void deref_snoop_agent(struct ib_mad_snoop_private *mad_snoop_priv)
+{
+ if (atomic_dec_and_test(&mad_snoop_priv->refcount))
+ complete(&mad_snoop_priv->comp);
+}
+
static void unregister_mad_agent(struct ib_mad_agent_private *mad_agent_priv)
{
struct ib_mad_port_private *port_priv;
flush_workqueue(port_priv->wq);
ib_cancel_rmpp_recvs(mad_agent_priv);
- atomic_dec(&mad_agent_priv->refcount);
- wait_event(mad_agent_priv->wait,
- !atomic_read(&mad_agent_priv->refcount));
+ deref_mad_agent(mad_agent_priv);
+ wait_for_completion(&mad_agent_priv->comp);
kfree(mad_agent_priv->reg_req);
ib_dereg_mr(mad_agent_priv->agent.mr);
atomic_dec(&qp_info->snoop_count);
spin_unlock_irqrestore(&qp_info->snoop_lock, flags);
- atomic_dec(&mad_snoop_priv->refcount);
- wait_event(mad_snoop_priv->wait,
- !atomic_read(&mad_snoop_priv->refcount));
+ deref_snoop_agent(mad_snoop_priv);
+ wait_for_completion(&mad_snoop_priv->comp);
kfree(mad_snoop_priv);
}
spin_unlock_irqrestore(&qp_info->snoop_lock, flags);
mad_snoop_priv->agent.snoop_handler(&mad_snoop_priv->agent,
send_buf, mad_send_wc);
- if (atomic_dec_and_test(&mad_snoop_priv->refcount))
- wake_up(&mad_snoop_priv->wait);
+ deref_snoop_agent(mad_snoop_priv);
spin_lock_irqsave(&qp_info->snoop_lock, flags);
}
spin_unlock_irqrestore(&qp_info->snoop_lock, flags);
spin_unlock_irqrestore(&qp_info->snoop_lock, flags);
mad_snoop_priv->agent.recv_handler(&mad_snoop_priv->agent,
mad_recv_wc);
- if (atomic_dec_and_test(&mad_snoop_priv->refcount))
- wake_up(&mad_snoop_priv->wait);
+ deref_snoop_agent(mad_snoop_priv);
spin_lock_irqsave(&qp_info->snoop_lock, flags);
}
spin_unlock_irqrestore(&qp_info->snoop_lock, flags);
goto out;
}
/* Check to post send on QP or process locally */
- ret = smi_check_local_dr_smp(smp, device, port_num);
- if (!ret || !device->process_mad)
+ ret = smi_check_local_smp(smp, device);
+ if (!ret)
goto out;
local = kmalloc(sizeof *local, GFP_ATOMIC);
return ret;
}
-static int get_buf_length(int hdr_len, int data_len)
+static int get_pad_size(int hdr_len, int data_len)
{
int seg_size, pad;
seg_size = sizeof(struct ib_mad) - hdr_len;
if (data_len && seg_size) {
pad = seg_size - data_len % seg_size;
- if (pad == seg_size)
- pad = 0;
+ return pad == seg_size ? 0 : pad;
} else
- pad = seg_size;
- return hdr_len + data_len + pad;
+ return seg_size;
+}
+
+static void free_send_rmpp_list(struct ib_mad_send_wr_private *mad_send_wr)
+{
+ struct ib_rmpp_segment *s, *t;
+
+ list_for_each_entry_safe(s, t, &mad_send_wr->rmpp_list, list) {
+ list_del(&s->list);
+ kfree(s);
+ }
+}
+
+static int alloc_send_rmpp_list(struct ib_mad_send_wr_private *send_wr,
+ gfp_t gfp_mask)
+{
+ struct ib_mad_send_buf *send_buf = &send_wr->send_buf;
+ struct ib_rmpp_mad *rmpp_mad = send_buf->mad;
+ struct ib_rmpp_segment *seg = NULL;
+ int left, seg_size, pad;
+
+ send_buf->seg_size = sizeof (struct ib_mad) - send_buf->hdr_len;
+ seg_size = send_buf->seg_size;
+ pad = send_wr->pad;
+
+ /* Allocate data segments. */
+ for (left = send_buf->data_len + pad; left > 0; left -= seg_size) {
+ seg = kmalloc(sizeof (*seg) + seg_size, gfp_mask);
+ if (!seg) {
+ printk(KERN_ERR "alloc_send_rmpp_segs: RMPP mem "
+ "alloc failed for len %zd, gfp %#x\n",
+ sizeof (*seg) + seg_size, gfp_mask);
+ free_send_rmpp_list(send_wr);
+ return -ENOMEM;
+ }
+ seg->num = ++send_buf->seg_count;
+ list_add_tail(&seg->list, &send_wr->rmpp_list);
+ }
+
+ /* Zero any padding */
+ if (pad)
+ memset(seg->data + seg_size - pad, 0, pad);
+
+ rmpp_mad->rmpp_hdr.rmpp_version = send_wr->mad_agent_priv->
+ agent.rmpp_version;
+ rmpp_mad->rmpp_hdr.rmpp_type = IB_MGMT_RMPP_TYPE_DATA;
+ ib_set_rmpp_flags(&rmpp_mad->rmpp_hdr, IB_MGMT_RMPP_FLAG_ACTIVE);
+
+ send_wr->cur_seg = container_of(send_wr->rmpp_list.next,
+ struct ib_rmpp_segment, list);
+ send_wr->last_ack_seg = send_wr->cur_seg;
+ return 0;
}
struct ib_mad_send_buf * ib_create_send_mad(struct ib_mad_agent *mad_agent,
{
struct ib_mad_agent_private *mad_agent_priv;
struct ib_mad_send_wr_private *mad_send_wr;
- int buf_size;
+ int pad, message_size, ret, size;
void *buf;
mad_agent_priv = container_of(mad_agent, struct ib_mad_agent_private,
agent);
- buf_size = get_buf_length(hdr_len, data_len);
+ pad = get_pad_size(hdr_len, data_len);
+ message_size = hdr_len + data_len + pad;
if ((!mad_agent->rmpp_version &&
- (rmpp_active || buf_size > sizeof(struct ib_mad))) ||
- (!rmpp_active && buf_size > sizeof(struct ib_mad)))
+ (rmpp_active || message_size > sizeof(struct ib_mad))) ||
+ (!rmpp_active && message_size > sizeof(struct ib_mad)))
return ERR_PTR(-EINVAL);
- buf = kzalloc(sizeof *mad_send_wr + buf_size, gfp_mask);
+ size = rmpp_active ? hdr_len : sizeof(struct ib_mad);
+ buf = kzalloc(sizeof *mad_send_wr + size, gfp_mask);
if (!buf)
return ERR_PTR(-ENOMEM);
- mad_send_wr = buf + buf_size;
+ mad_send_wr = buf + size;
+ INIT_LIST_HEAD(&mad_send_wr->rmpp_list);
mad_send_wr->send_buf.mad = buf;
+ mad_send_wr->send_buf.hdr_len = hdr_len;
+ mad_send_wr->send_buf.data_len = data_len;
+ mad_send_wr->pad = pad;
mad_send_wr->mad_agent_priv = mad_agent_priv;
- mad_send_wr->sg_list[0].length = buf_size;
+ mad_send_wr->sg_list[0].length = hdr_len;
mad_send_wr->sg_list[0].lkey = mad_agent->mr->lkey;
+ mad_send_wr->sg_list[1].length = sizeof(struct ib_mad) - hdr_len;
+ mad_send_wr->sg_list[1].lkey = mad_agent->mr->lkey;
mad_send_wr->send_wr.wr_id = (unsigned long) mad_send_wr;
mad_send_wr->send_wr.sg_list = mad_send_wr->sg_list;
- mad_send_wr->send_wr.num_sge = 1;
+ mad_send_wr->send_wr.num_sge = 2;
mad_send_wr->send_wr.opcode = IB_WR_SEND;
mad_send_wr->send_wr.send_flags = IB_SEND_SIGNALED;
mad_send_wr->send_wr.wr.ud.remote_qpn = remote_qpn;
mad_send_wr->send_wr.wr.ud.pkey_index = pkey_index;
if (rmpp_active) {
- struct ib_rmpp_mad *rmpp_mad = mad_send_wr->send_buf.mad;
- rmpp_mad->rmpp_hdr.paylen_newwin = cpu_to_be32(hdr_len -
- IB_MGMT_RMPP_HDR + data_len);
- rmpp_mad->rmpp_hdr.rmpp_version = mad_agent->rmpp_version;
- rmpp_mad->rmpp_hdr.rmpp_type = IB_MGMT_RMPP_TYPE_DATA;
- ib_set_rmpp_flags(&rmpp_mad->rmpp_hdr,
- IB_MGMT_RMPP_FLAG_ACTIVE);
+ ret = alloc_send_rmpp_list(mad_send_wr, gfp_mask);
+ if (ret) {
+ kfree(buf);
+ return ERR_PTR(ret);
+ }
}
mad_send_wr->send_buf.mad_agent = mad_agent;
}
EXPORT_SYMBOL(ib_create_send_mad);
+int ib_get_mad_data_offset(u8 mgmt_class)
+{
+ if (mgmt_class == IB_MGMT_CLASS_SUBN_ADM)
+ return IB_MGMT_SA_HDR;
+ else if ((mgmt_class == IB_MGMT_CLASS_DEVICE_MGMT) ||
+ (mgmt_class == IB_MGMT_CLASS_DEVICE_ADM) ||
+ (mgmt_class == IB_MGMT_CLASS_BIS))
+ return IB_MGMT_DEVICE_HDR;
+ else if ((mgmt_class >= IB_MGMT_CLASS_VENDOR_RANGE2_START) &&
+ (mgmt_class <= IB_MGMT_CLASS_VENDOR_RANGE2_END))
+ return IB_MGMT_VENDOR_HDR;
+ else
+ return IB_MGMT_MAD_HDR;
+}
+EXPORT_SYMBOL(ib_get_mad_data_offset);
+
+int ib_is_mad_class_rmpp(u8 mgmt_class)
+{
+ if ((mgmt_class == IB_MGMT_CLASS_SUBN_ADM) ||
+ (mgmt_class == IB_MGMT_CLASS_DEVICE_MGMT) ||
+ (mgmt_class == IB_MGMT_CLASS_DEVICE_ADM) ||
+ (mgmt_class == IB_MGMT_CLASS_BIS) ||
+ ((mgmt_class >= IB_MGMT_CLASS_VENDOR_RANGE2_START) &&
+ (mgmt_class <= IB_MGMT_CLASS_VENDOR_RANGE2_END)))
+ return 1;
+ return 0;
+}
+EXPORT_SYMBOL(ib_is_mad_class_rmpp);
+
+void *ib_get_rmpp_segment(struct ib_mad_send_buf *send_buf, int seg_num)
+{
+ struct ib_mad_send_wr_private *mad_send_wr;
+ struct list_head *list;
+
+ mad_send_wr = container_of(send_buf, struct ib_mad_send_wr_private,
+ send_buf);
+ list = &mad_send_wr->cur_seg->list;
+
+ if (mad_send_wr->cur_seg->num < seg_num) {
+ list_for_each_entry(mad_send_wr->cur_seg, list, list)
+ if (mad_send_wr->cur_seg->num == seg_num)
+ break;
+ } else if (mad_send_wr->cur_seg->num > seg_num) {
+ list_for_each_entry_reverse(mad_send_wr->cur_seg, list, list)
+ if (mad_send_wr->cur_seg->num == seg_num)
+ break;
+ }
+ return mad_send_wr->cur_seg->data;
+}
+EXPORT_SYMBOL(ib_get_rmpp_segment);
+
+static inline void *ib_get_payload(struct ib_mad_send_wr_private *mad_send_wr)
+{
+ if (mad_send_wr->send_buf.seg_count)
+ return ib_get_rmpp_segment(&mad_send_wr->send_buf,
+ mad_send_wr->seg_num);
+ else
+ return mad_send_wr->send_buf.mad +
+ mad_send_wr->send_buf.hdr_len;
+}
+
void ib_free_send_mad(struct ib_mad_send_buf *send_buf)
{
struct ib_mad_agent_private *mad_agent_priv;
+ struct ib_mad_send_wr_private *mad_send_wr;
mad_agent_priv = container_of(send_buf->mad_agent,
struct ib_mad_agent_private, agent);
- kfree(send_buf->mad);
+ mad_send_wr = container_of(send_buf, struct ib_mad_send_wr_private,
+ send_buf);
- if (atomic_dec_and_test(&mad_agent_priv->refcount))
- wake_up(&mad_agent_priv->wait);
+ free_send_rmpp_list(mad_send_wr);
+ kfree(send_buf->mad);
+ deref_mad_agent(mad_agent_priv);
}
EXPORT_SYMBOL(ib_free_send_mad);
mad_agent = mad_send_wr->send_buf.mad_agent;
sge = mad_send_wr->sg_list;
- sge->addr = dma_map_single(mad_agent->device->dma_device,
- mad_send_wr->send_buf.mad, sge->length,
- DMA_TO_DEVICE);
- pci_unmap_addr_set(mad_send_wr, mapping, sge->addr);
+ sge[0].addr = dma_map_single(mad_agent->device->dma_device,
+ mad_send_wr->send_buf.mad,
+ sge[0].length,
+ DMA_TO_DEVICE);
+ pci_unmap_addr_set(mad_send_wr, header_mapping, sge[0].addr);
+
+ sge[1].addr = dma_map_single(mad_agent->device->dma_device,
+ ib_get_payload(mad_send_wr),
+ sge[1].length,
+ DMA_TO_DEVICE);
+ pci_unmap_addr_set(mad_send_wr, payload_mapping, sge[1].addr);
spin_lock_irqsave(&qp_info->send_queue.lock, flags);
if (qp_info->send_queue.count < qp_info->send_queue.max_active) {
list_add_tail(&mad_send_wr->mad_list.list, list);
}
spin_unlock_irqrestore(&qp_info->send_queue.lock, flags);
- if (ret)
+ if (ret) {
dma_unmap_single(mad_agent->device->dma_device,
- pci_unmap_addr(mad_send_wr, mapping),
- sge->length, DMA_TO_DEVICE);
-
+ pci_unmap_addr(mad_send_wr, header_mapping),
+ sge[0].length, DMA_TO_DEVICE);
+ dma_unmap_single(mad_agent->device->dma_device,
+ pci_unmap_addr(mad_send_wr, payload_mapping),
+ sge[1].length, DMA_TO_DEVICE);
+ }
return ret;
}
goto error;
}
+ if (!ib_is_mad_class_rmpp(((struct ib_mad_hdr *) send_buf->mad)->mgmt_class)) {
+ if (mad_agent_priv->agent.rmpp_version) {
+ ret = -EINVAL;
+ goto error;
+ }
+ }
+
/*
* Save pointer to next work request to post in case the
* current one completes, and the user modifies the work
(rmpp_mad->rmpp_hdr.rmpp_type == IB_MGMT_RMPP_TYPE_DATA);
}
+static inline int rcv_has_same_class(struct ib_mad_send_wr_private *wr,
+ struct ib_mad_recv_wc *rwc)
+{
+ return ((struct ib_mad *)(wr->send_buf.mad))->mad_hdr.mgmt_class ==
+ rwc->recv_buf.mad->mad_hdr.mgmt_class;
+}
+
+static inline int rcv_has_same_gid(struct ib_mad_send_wr_private *wr,
+ struct ib_mad_recv_wc *rwc )
+{
+ struct ib_ah_attr attr;
+ u8 send_resp, rcv_resp;
+
+ send_resp = ((struct ib_mad *)(wr->send_buf.mad))->
+ mad_hdr.method & IB_MGMT_METHOD_RESP;
+ rcv_resp = rwc->recv_buf.mad->mad_hdr.method & IB_MGMT_METHOD_RESP;
+
+ if (!send_resp && rcv_resp)
+ /* is request/response. GID/LIDs are both local (same). */
+ return 1;
+
+ if (send_resp == rcv_resp)
+ /* both requests, or both responses. GIDs different */
+ return 0;
+
+ if (ib_query_ah(wr->send_buf.ah, &attr))
+ /* Assume not equal, to avoid false positives. */
+ return 0;
+
+ if (!(attr.ah_flags & IB_AH_GRH) && !(rwc->wc->wc_flags & IB_WC_GRH))
+ return attr.dlid == rwc->wc->slid;
+ else if ((attr.ah_flags & IB_AH_GRH) &&
+ (rwc->wc->wc_flags & IB_WC_GRH))
+ return memcmp(attr.grh.dgid.raw,
+ rwc->recv_buf.grh->sgid.raw, 16) == 0;
+ else
+ /* one has GID, other does not. Assume different */
+ return 0;
+}
struct ib_mad_send_wr_private*
-ib_find_send_mad(struct ib_mad_agent_private *mad_agent_priv, __be64 tid)
+ib_find_send_mad(struct ib_mad_agent_private *mad_agent_priv,
+ struct ib_mad_recv_wc *mad_recv_wc)
{
struct ib_mad_send_wr_private *mad_send_wr;
+ struct ib_mad *mad;
+
+ mad = (struct ib_mad *)mad_recv_wc->recv_buf.mad;
list_for_each_entry(mad_send_wr, &mad_agent_priv->wait_list,
agent_list) {
- if (mad_send_wr->tid == tid)
+ if ((mad_send_wr->tid == mad->mad_hdr.tid) &&
+ rcv_has_same_class(mad_send_wr, mad_recv_wc) &&
+ rcv_has_same_gid(mad_send_wr, mad_recv_wc))
return mad_send_wr;
}
list_for_each_entry(mad_send_wr, &mad_agent_priv->send_list,
agent_list) {
if (is_data_mad(mad_agent_priv, mad_send_wr->send_buf.mad) &&
- mad_send_wr->tid == tid && mad_send_wr->timeout) {
+ mad_send_wr->tid == mad->mad_hdr.tid &&
+ mad_send_wr->timeout &&
+ rcv_has_same_class(mad_send_wr, mad_recv_wc) &&
+ rcv_has_same_gid(mad_send_wr, mad_recv_wc)) {
/* Verify request has not been canceled */
return (mad_send_wr->status == IB_WC_SUCCESS) ?
mad_send_wr : NULL;
struct ib_mad_send_wr_private *mad_send_wr;
struct ib_mad_send_wc mad_send_wc;
unsigned long flags;
- __be64 tid;
INIT_LIST_HEAD(&mad_recv_wc->rmpp_list);
list_add(&mad_recv_wc->recv_buf.list, &mad_recv_wc->rmpp_list);
mad_recv_wc = ib_process_rmpp_recv_wc(mad_agent_priv,
mad_recv_wc);
if (!mad_recv_wc) {
- if (atomic_dec_and_test(&mad_agent_priv->refcount))
- wake_up(&mad_agent_priv->wait);
+ deref_mad_agent(mad_agent_priv);
return;
}
}
/* Complete corresponding request */
if (response_mad(mad_recv_wc->recv_buf.mad)) {
- tid = mad_recv_wc->recv_buf.mad->mad_hdr.tid;
spin_lock_irqsave(&mad_agent_priv->lock, flags);
- mad_send_wr = ib_find_send_mad(mad_agent_priv, tid);
+ mad_send_wr = ib_find_send_mad(mad_agent_priv, mad_recv_wc);
if (!mad_send_wr) {
spin_unlock_irqrestore(&mad_agent_priv->lock, flags);
ib_free_recv_mad(mad_recv_wc);
- if (atomic_dec_and_test(&mad_agent_priv->refcount))
- wake_up(&mad_agent_priv->wait);
+ deref_mad_agent(mad_agent_priv);
return;
}
ib_mark_mad_done(mad_send_wr);
} else {
mad_agent_priv->agent.recv_handler(&mad_agent_priv->agent,
mad_recv_wc);
- if (atomic_dec_and_test(&mad_agent_priv->refcount))
- wake_up(&mad_agent_priv->wait);
+ deref_mad_agent(mad_agent_priv);
}
}
port_priv->device->node_type,
port_priv->port_num))
goto out;
- if (!smi_check_local_dr_smp(&recv->mad.smp,
- port_priv->device,
- port_priv->port_num))
+ if (!smi_check_local_smp(&recv->mad.smp, port_priv->device))
goto out;
}
mad_send_wc);
/* Release reference on agent taken when sending */
- if (atomic_dec_and_test(&mad_agent_priv->refcount))
- wake_up(&mad_agent_priv->wait);
+ deref_mad_agent(mad_agent_priv);
return;
done:
spin_unlock_irqrestore(&mad_agent_priv->lock, flags);
retry:
dma_unmap_single(mad_send_wr->send_buf.mad_agent->device->dma_device,
- pci_unmap_addr(mad_send_wr, mapping),
+ pci_unmap_addr(mad_send_wr, header_mapping),
mad_send_wr->sg_list[0].length, DMA_TO_DEVICE);
+ dma_unmap_single(mad_send_wr->send_buf.mad_agent->device->dma_device,
+ pci_unmap_addr(mad_send_wr, payload_mapping),
+ mad_send_wr->sg_list[1].length, DMA_TO_DEVICE);
queued_send_wr = NULL;
spin_lock_irqsave(&send_queue->lock, flags);
list_del(&mad_list->list);
local = list_entry(mad_agent_priv->local_list.next,
struct ib_mad_local_private,
completion_list);
+ list_del(&local->completion_list);
spin_unlock_irqrestore(&mad_agent_priv->lock, flags);
if (local->mad_priv) {
recv_mad_agent = local->recv_mad_agent;
&mad_send_wc);
spin_lock_irqsave(&mad_agent_priv->lock, flags);
- list_del(&local->completion_list);
atomic_dec(&mad_agent_priv->refcount);
if (!recv)
kmem_cache_free(ib_mad_cache, local->mad_priv);
static void ib_mad_thread_completion_handler(struct ib_cq *cq, void *arg)
{
struct ib_mad_port_private *port_priv = cq->cq_context;
+ unsigned long flags;
- queue_work(port_priv->wq, &port_priv->work);
+ spin_lock_irqsave(&ib_mad_port_list_lock, flags);
+ if (!list_empty(&port_priv->port_list))
+ queue_work(port_priv->wq, &port_priv->work);
+ spin_unlock_irqrestore(&ib_mad_port_list_lock, flags);
}
/*
}
}
sg_list.addr = dma_map_single(qp_info->port_priv->
- device->dma_device,
- &mad_priv->grh,
- sizeof *mad_priv -
- sizeof mad_priv->header,
- DMA_FROM_DEVICE);
+ device->dma_device,
+ &mad_priv->grh,
+ sizeof *mad_priv -
+ sizeof mad_priv->header,
+ DMA_FROM_DEVICE);
pci_unmap_addr_set(&mad_priv->header, mapping, sg_list.addr);
recv_wr.wr_id = (unsigned long)&mad_priv->header.mad_list;
mad_priv->header.mad_list.mad_queue = recv_queue;
}
INIT_WORK(&port_priv->work, ib_mad_completion_handler, port_priv);
+ spin_lock_irqsave(&ib_mad_port_list_lock, flags);
+ list_add_tail(&port_priv->port_list, &ib_mad_port_list);
+ spin_unlock_irqrestore(&ib_mad_port_list_lock, flags);
+
ret = ib_mad_port_start(port_priv);
if (ret) {
printk(KERN_ERR PFX "Couldn't start port\n");
goto error9;
}
- spin_lock_irqsave(&ib_mad_port_list_lock, flags);
- list_add_tail(&port_priv->port_list, &ib_mad_port_list);
- spin_unlock_irqrestore(&ib_mad_port_list_lock, flags);
return 0;
error9:
+ spin_lock_irqsave(&ib_mad_port_list_lock, flags);
+ list_del_init(&port_priv->port_list);
+ spin_unlock_irqrestore(&ib_mad_port_list_lock, flags);
+
destroy_workqueue(port_priv->wq);
error8:
destroy_mad_qp(&port_priv->qp_info[1]);
printk(KERN_ERR PFX "Port %d not found\n", port_num);
return -ENODEV;
}
- list_del(&port_priv->port_list);
+ list_del_init(&port_priv->port_list);
spin_unlock_irqrestore(&ib_mad_port_list_lock, flags);
- /* Stop processing completions. */
- flush_workqueue(port_priv->wq);
destroy_workqueue(port_priv->wq);
destroy_mad_qp(&port_priv->qp_info[1]);
destroy_mad_qp(&port_priv->qp_info[0]);
git.openpandora.org / pandora-kernel.git / blobdiff