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Use smaller 512 byte messages for portmapper messages

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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>
This commit is contained in:
Mustafa Ismail 2016-07-18 14:21:49 -05:00 committed by Doug Ledford
parent 5faba54695
commit e972dabf9c
1 changed files with 2 additions and 1 deletions
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3
drivers/infiniband/core/iwpm_util.c
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@ -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;