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authorMustafa Ismail <mustafa.ismail@intel.com>2016-07-18 14:21:49 -0500
committerDoug Ledford <dledford@redhat.com>2016-08-03 21:03:33 -0400
commite972dabf9c38f7051d3dbaa48d8e77cfbe3a1baa (patch)
tree05658cd67adac9ac28335d74ab51f606ca78a3da /drivers/infiniband/core/iwpm_util.c
parentIB/ipoib: Report SG feature regardless of HW UD CSUM capability (diff)
downloadlinux-dev-e972dabf9c38f7051d3dbaa48d8e77cfbe3a1baa.tar.xz
linux-dev-e972dabf9c38f7051d3dbaa48d8e77cfbe3a1baa.zip
Use smaller 512 byte messages for portmapper messages
Portmapper messages are short and do not occupy more than 512 bytes. Lower portmapper message size to 512 bytes. This change significantly reduces the amount of memory needed when trying to establish a large number of connections simultaneously. The old value is based on page size. Signed-off-by: Faisal Latif <faisal.latif@intel.com> Signed-off-by: Mustafa Ismail <mustafa.ismail@intel.com> Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com> Reviewed-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'drivers/infiniband/core/iwpm_util.c')
-rw-r--r--drivers/infiniband/core/iwpm_util.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/infiniband/core/iwpm_util.c b/drivers/infiniband/core/iwpm_util.c
index b65e06c560d7..ade71e7f0131 100644
--- a/drivers/infiniband/core/iwpm_util.c
+++ b/drivers/infiniband/core/iwpm_util.c
@@ -37,6 +37,7 @@
#define IWPM_MAPINFO_HASH_MASK (IWPM_MAPINFO_HASH_SIZE - 1)
#define IWPM_REMINFO_HASH_SIZE 64
#define IWPM_REMINFO_HASH_MASK (IWPM_REMINFO_HASH_SIZE - 1)
+#define IWPM_MSG_SIZE 512
static LIST_HEAD(iwpm_nlmsg_req_list);
static DEFINE_SPINLOCK(iwpm_nlmsg_req_lock);
@@ -452,7 +453,7 @@ struct sk_buff *iwpm_create_nlmsg(u32 nl_op, struct nlmsghdr **nlh,
{
struct sk_buff *skb = NULL;
- skb = dev_alloc_skb(NLMSG_GOODSIZE);
+ skb = dev_alloc_skb(IWPM_MSG_SIZE);
if (!skb) {
pr_err("%s Unable to allocate skb\n", __func__);
goto create_nlmsg_exit;