diff mbox

[PATCHv2,net-next,29/31] iw_cxgb4: minor fixes/cleanup.

Message ID 1393828875-13452-30-git-send-email-hariprasad@chelsio.com
State Changes Requested, archived
Delegated to: David Miller
Headers show

Commit Message

Hariprasad Shenai March 3, 2014, 6:41 a.m. UTC
From: Steve Wise <swise@opengridcomputing.com>

Added some missing debug stats.

Use uninitialized_var().

Rate limit warning printks.

Initialize reserved fields in a FW work request.

Signed-off-by: Steve Wise <swise@opengridcomputing.com>
---
 drivers/infiniband/hw/cxgb4/cq.c       |    2 +-
 drivers/infiniband/hw/cxgb4/mem.c      |    6 +++++-
 drivers/infiniband/hw/cxgb4/qp.c       |    2 ++
 drivers/infiniband/hw/cxgb4/resource.c |   10 +++++++---
 4 files changed, 15 insertions(+), 5 deletions(-)

Comments

Sergei Shtylyov March 3, 2014, 6:55 p.m. UTC | #1
Hello.

On 03/03/2014 09:41 AM, Hariprasad Shenai wrote:

> From: Steve Wise <swise@opengridcomputing.com>

> Added some missing debug stats.

> Use uninitialized_var().

> Rate limit warning printks.

    Wasn't it already rate-limited?

> Initialize reserved fields in a FW work request.

    I don't think it's a great idea to mix several fixes and worse, cleanups 
in the same patch.

> Signed-off-by: Steve Wise <swise@opengridcomputing.com>
[...]

> diff --git a/drivers/infiniband/hw/cxgb4/resource.c b/drivers/infiniband/hw/cxgb4/resource.c
> index cdef4d7..69e57d0 100644
> --- a/drivers/infiniband/hw/cxgb4/resource.c
> +++ b/drivers/infiniband/hw/cxgb4/resource.c
[...]
> @@ -322,8 +326,8 @@ u32 c4iw_rqtpool_alloc(struct c4iw_rdev *rdev, int size)
>   	unsigned long addr = gen_pool_alloc(rdev->rqt_pool, size << 6);
>   	PDBG("%s addr 0x%x size %d\n", __func__, (u32)addr, size << 6);
>   	if (!addr)
> -		printk_ratelimited(KERN_WARNING MOD "%s: Out of RQT memory\n",
> -		       pci_name(rdev->lldi.pdev));
> +		pr_warn_ratelimited(KERN_WARNING MOD "%s: Out of RQT memory\n",

    You forgot to remove KERN_WARNING.

WBR, Sergei

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diff mbox

Patch

diff --git a/drivers/infiniband/hw/cxgb4/cq.c b/drivers/infiniband/hw/cxgb4/cq.c
index 351c8e0..6cbe4c5 100644
--- a/drivers/infiniband/hw/cxgb4/cq.c
+++ b/drivers/infiniband/hw/cxgb4/cq.c
@@ -676,7 +676,7 @@  skip_cqe:
 static int c4iw_poll_cq_one(struct c4iw_cq *chp, struct ib_wc *wc)
 {
 	struct c4iw_qp *qhp = NULL;
-	struct t4_cqe cqe = {0, 0}, *rd_cqe;
+	struct t4_cqe uninitialized_var(cqe), *rd_cqe;
 	struct t4_wq *wq;
 	u32 credit = 0;
 	u8 cqe_flushed;
diff --git a/drivers/infiniband/hw/cxgb4/mem.c b/drivers/infiniband/hw/cxgb4/mem.c
index cdaf257..ecdee18 100644
--- a/drivers/infiniband/hw/cxgb4/mem.c
+++ b/drivers/infiniband/hw/cxgb4/mem.c
@@ -259,8 +259,12 @@  static int write_tpt_entry(struct c4iw_rdev *rdev, u32 reset_tpt_entry,
 
 	if ((!reset_tpt_entry) && (*stag == T4_STAG_UNSET)) {
 		stag_idx = c4iw_get_resource(&rdev->resource.tpt_table);
-		if (!stag_idx)
+		if (!stag_idx) {
+			mutex_lock(&rdev->stats.lock);
+			rdev->stats.stag.fail++;
+			mutex_unlock(&rdev->stats.lock);
 			return -ENOMEM;
+		}
 		mutex_lock(&rdev->stats.lock);
 		rdev->stats.stag.cur += 32;
 		if (rdev->stats.stag.cur > rdev->stats.stag.max)
diff --git a/drivers/infiniband/hw/cxgb4/qp.c b/drivers/infiniband/hw/cxgb4/qp.c
index 34a0bd2..ca2f753 100644
--- a/drivers/infiniband/hw/cxgb4/qp.c
+++ b/drivers/infiniband/hw/cxgb4/qp.c
@@ -440,6 +440,8 @@  static int build_rdma_send(struct t4_sq *sq, union t4_wr *wqe,
 	default:
 		return -EINVAL;
 	}
+	wqe->send.r3 = 0;
+	wqe->send.r4 = 0;
 
 	plen = 0;
 	if (wr->num_sge) {
diff --git a/drivers/infiniband/hw/cxgb4/resource.c b/drivers/infiniband/hw/cxgb4/resource.c
index cdef4d7..69e57d0 100644
--- a/drivers/infiniband/hw/cxgb4/resource.c
+++ b/drivers/infiniband/hw/cxgb4/resource.c
@@ -179,8 +179,12 @@  u32 c4iw_get_qpid(struct c4iw_rdev *rdev, struct c4iw_dev_ucontext *uctx)
 		kfree(entry);
 	} else {
 		qid = c4iw_get_resource(&rdev->resource.qid_table);
-		if (!qid)
+		if (!qid) {
+			mutex_lock(&rdev->stats.lock);
+			rdev->stats.qid.fail++;
+			mutex_unlock(&rdev->stats.lock);
 			goto out;
+		}
 		mutex_lock(&rdev->stats.lock);
 		rdev->stats.qid.cur += rdev->qpmask + 1;
 		mutex_unlock(&rdev->stats.lock);
@@ -322,8 +326,8 @@  u32 c4iw_rqtpool_alloc(struct c4iw_rdev *rdev, int size)
 	unsigned long addr = gen_pool_alloc(rdev->rqt_pool, size << 6);
 	PDBG("%s addr 0x%x size %d\n", __func__, (u32)addr, size << 6);
 	if (!addr)
-		printk_ratelimited(KERN_WARNING MOD "%s: Out of RQT memory\n",
-		       pci_name(rdev->lldi.pdev));
+		pr_warn_ratelimited(KERN_WARNING MOD "%s: Out of RQT memory\n",
+				    pci_name(rdev->lldi.pdev));
 	mutex_lock(&rdev->stats.lock);
 	if (addr) {
 		rdev->stats.rqt.cur += roundup(size << 6, 1 << MIN_RQT_SHIFT);