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Commit e972dabf authored by Mustafa Ismail's avatar Mustafa Ismail Committed by Doug Ledford
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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: default avatarFaisal Latif <faisal.latif@intel.com>
Signed-off-by: default avatarMustafa Ismail <mustafa.ismail@intel.com>
Signed-off-by: default avatarShiraz Saleem <shiraz.saleem@intel.com>
Reviewed-by: default avatarLeon Romanovsky <leonro@mellanox.com>
Signed-off-by: default avatarDoug Ledford <dledford@redhat.com>
parent 5faba546

drivers/infiniband/core/iwpm_util.c

+2 −1
Original line number Diff line number Diff line
@@ -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;