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Commit e02e4d55 authored by Sagi Grimberg's avatar Sagi Grimberg Committed by Doug Ledford
Browse files

nes: Support ib_alloc_mr verb 



Signed-off-by: default avatarSagi Grimberg <sagig@mellanox.com>
Signed-off-by: default avatarDoug Ledford <dledford@redhat.com>
parent f683d3bd

drivers/infiniband/hw/nes/nes_verbs.c

+14 −5
Original line number Diff line number Diff line
@@ -375,9 +375,11 @@ static int alloc_fast_reg_mr(struct nes_device *nesdev, struct nes_pd *nespd, 
}



/*

 * nes_alloc_fast_reg_mr

 * nes_alloc_mr

 */

static struct ib_mr *nes_alloc_fast_reg_mr(struct ib_pd *ibpd, int max_page_list_len)

static struct ib_mr *nes_alloc_mr(struct ib_pd *ibpd,

				  enum ib_mr_type mr_type,

				  u32 max_num_sg)

{

	struct nes_pd *nespd = to_nespd(ibpd);

	struct nes_vnic *nesvnic = to_nesvnic(ibpd->device);
@@ -393,11 +395,18 @@ static struct ib_mr *nes_alloc_fast_reg_mr(struct ib_pd *ibpd, int max_page_list 
	u32 stag;

	int ret;

	struct ib_mr *ibmr;



	if (mr_type != IB_MR_TYPE_MEM_REG)

		return ERR_PTR(-EINVAL);



	if (max_num_sg > (NES_4K_PBL_CHUNK_SIZE / sizeof(u64)))

		return ERR_PTR(-E2BIG);



/*

 * Note:  Set to always use a fixed length single page entry PBL.  This is to allow

 *	 for the fast_reg_mr operation to always know the size of the PBL.

 */

	if (max_page_list_len > (NES_4K_PBL_CHUNK_SIZE / sizeof(u64)))

	if (max_num_sg > (NES_4K_PBL_CHUNK_SIZE / sizeof(u64)))

		return ERR_PTR(-E2BIG);



	get_random_bytes(&next_stag_index, sizeof(next_stag_index));
@@ -424,7 +433,7 @@ static struct ib_mr *nes_alloc_fast_reg_mr(struct ib_pd *ibpd, int max_page_list 
	nes_debug(NES_DBG_MR, "Allocating STag 0x%08X index = 0x%08X\n",

		  stag, stag_index);



	ret = alloc_fast_reg_mr(nesdev, nespd, stag, max_page_list_len);

	ret = alloc_fast_reg_mr(nesdev, nespd, stag, max_num_sg);



	if (ret == 0) {

		nesmr->ibmr.rkey = stag;
@@ -3929,7 +3938,7 @@ struct nes_ib_device *nes_init_ofa_device(struct net_device *netdev) 
	nesibdev->ibdev.dealloc_mw = nes_dealloc_mw;

	nesibdev->ibdev.bind_mw = nes_bind_mw;



	nesibdev->ibdev.alloc_fast_reg_mr = nes_alloc_fast_reg_mr;

	nesibdev->ibdev.alloc_mr = nes_alloc_mr;

	nesibdev->ibdev.alloc_fast_reg_page_list = nes_alloc_fast_reg_page_list;

	nesibdev->ibdev.free_fast_reg_page_list = nes_free_fast_reg_page_list;