On 12/07/2015 12:51 PM, Christoph Hellwig wrote:
This adds an abstraction that allows ULP to simply pass a completion
^^^
I think this should either be changed into either "an ULP" or "ULPs".
+/**
+ * ib_process_direct_cq - process a CQ in caller context
+ * @cq: CQ to process
+ * @budget: number of CQEs to poll for
+ *
+ * This function is used to process all outstanding CQ entries on a
+ * %IB_POLL_DIRECT CQ. It does not offload CQ processing to a different
+ * context and does not ask from completion interrupts from the HCA.
^^^^
Should this perhaps be changed into "for" ?
+ *
+ * Note: for compatibility reasons -1 can be passed in %budget for unlimited
+ * polling. Do not use this feature in new code, it will be remove soon.
^^^^^^
Did you perhaps intend "removed" ?
+struct ib_cq *ib_alloc_cq(struct ib_device *dev, void *private,
+ int nr_cqe, int comp_vector, enum ib_poll_context poll_ctx)
+{
> [ ... ]
+ cq->wc = kmalloc_array(IB_POLL_BATCH, sizeof(*cq->wc), GFP_KERNEL);
Why is the wc array allocated separately instead of being embedded in
struct ib_cq ? I think the faster completion queues can be created the
better so if it is possible to eliminate the above kmalloc() call I
would prefer that.
--- a/drivers/infiniband/ulp/srp/ib_srp.c
+++ b/drivers/infiniband/ulp/srp/ib_srp.c
@@ -457,10 +457,11 @@ static struct srp_fr_pool *srp_alloc_fr_pool(struct srp_target_port *target)
static void srp_destroy_qp(struct srp_rdma_ch *ch)
{
static struct ib_qp_attr attr = { .qp_state = IB_QPS_ERR };
- static struct ib_recv_wr wr = { .wr_id = SRP_LAST_WR_ID };
+ static struct ib_recv_wr wr = { 0 };
struct ib_recv_wr *bad_wr;
int ret;
Is explicit initialization to "{ 0 }" really needed for static structures ?
Bart.
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