From mboxrd@z Thu Jan 1 00:00:00 1970 From: Sagi Grimberg Subject: [PATCH WIP 03/43] ocrdma: Support ib_alloc_mr verb Date: Wed, 22 Jul 2015 09:55:03 +0300 Message-ID: <1437548143-24893-4-git-send-email-sagig@mellanox.com> References: <1437548143-24893-1-git-send-email-sagig@mellanox.com> Return-path: In-Reply-To: <1437548143-24893-1-git-send-email-sagig-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org> Sender: linux-rdma-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org Cc: Liran Liss , Oren Duer List-Id: linux-rdma@vger.kernel.org Signed-off-by: Sagi Grimberg --- drivers/infiniband/hw/ocrdma/ocrdma_main.c | 1 + drivers/infiniband/hw/ocrdma/ocrdma_verbs.c | 47 +++++++++++++++++++++++++++++ drivers/infiniband/hw/ocrdma/ocrdma_verbs.h | 4 +++ 3 files changed, 52 insertions(+) diff --git a/drivers/infiniband/hw/ocrdma/ocrdma_main.c b/drivers/infiniband/hw/ocrdma/ocrdma_main.c index 8a1398b..d7ebe04 100644 --- a/drivers/infiniband/hw/ocrdma/ocrdma_main.c +++ b/drivers/infiniband/hw/ocrdma/ocrdma_main.c @@ -294,6 +294,7 @@ static int ocrdma_register_device(struct ocrdma_dev *dev) dev->ibdev.dereg_mr = ocrdma_dereg_mr; dev->ibdev.reg_user_mr = ocrdma_reg_user_mr; + dev->ibdev.alloc_mr = ocrdma_alloc_mr; dev->ibdev.alloc_fast_reg_mr = ocrdma_alloc_frmr; dev->ibdev.alloc_fast_reg_page_list = ocrdma_alloc_frmr_page_list; dev->ibdev.free_fast_reg_page_list = ocrdma_free_frmr_page_list; diff --git a/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c b/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c index 5bb61eb..3487780 100644 --- a/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c +++ b/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c @@ -2983,6 +2983,53 @@ int ocrdma_arm_cq(struct ib_cq *ibcq, enum ib_cq_notify_flags cq_flags) return 0; } +struct ib_mr *ocrdma_alloc_mr(struct ib_pd *ibpd, + enum ib_mr_type mr_type, + u32 max_entries, + u32 flags) +{ + int status; + struct ocrdma_mr *mr; + struct ocrdma_pd *pd = get_ocrdma_pd(ibpd); + struct ocrdma_dev *dev = get_ocrdma_dev(ibpd->device); + + if (mr_type != IB_MR_TYPE_FAST_REG || flags) + return ERR_PTR(-EINVAL); + + if (max_entries > dev->attr.max_pages_per_frmr) + return ERR_PTR(-EINVAL); + + mr = kzalloc(sizeof(*mr), GFP_KERNEL); + if (!mr) + return ERR_PTR(-ENOMEM); + + status = ocrdma_get_pbl_info(dev, mr, max_entries); + if (status) + goto pbl_err; + mr->hwmr.fr_mr = 1; + mr->hwmr.remote_rd = 0; + mr->hwmr.remote_wr = 0; + mr->hwmr.local_rd = 0; + mr->hwmr.local_wr = 0; + mr->hwmr.mw_bind = 0; + status = ocrdma_build_pbl_tbl(dev, &mr->hwmr); + if (status) + goto pbl_err; + status = ocrdma_reg_mr(dev, &mr->hwmr, pd->id, 0); + if (status) + goto mbx_err; + mr->ibmr.rkey = mr->hwmr.lkey; + mr->ibmr.lkey = mr->hwmr.lkey; + dev->stag_arr[(mr->hwmr.lkey >> 8) & (OCRDMA_MAX_STAG - 1)] = + (unsigned long) mr; + return &mr->ibmr; +mbx_err: + ocrdma_free_mr_pbl_tbl(dev, &mr->hwmr); +pbl_err: + kfree(mr); + return ERR_PTR(-ENOMEM); +} + struct ib_mr *ocrdma_alloc_frmr(struct ib_pd *ibpd, int max_page_list_len) { int status; diff --git a/drivers/infiniband/hw/ocrdma/ocrdma_verbs.h b/drivers/infiniband/hw/ocrdma/ocrdma_verbs.h index b15c608..eebcda2 100644 --- a/drivers/infiniband/hw/ocrdma/ocrdma_verbs.h +++ b/drivers/infiniband/hw/ocrdma/ocrdma_verbs.h @@ -96,6 +96,10 @@ struct ib_mr *ocrdma_reg_kernel_mr(struct ib_pd *, int num_phys_buf, int acc, u64 *iova_start); struct ib_mr *ocrdma_reg_user_mr(struct ib_pd *, u64 start, u64 length, u64 virt, int acc, struct ib_udata *); +struct ib_mr *ocrdma_alloc_mr(struct ib_pd *pd, + enum ib_mr_type mr_type, + u32 max_entries, + u32 flags); struct ib_mr *ocrdma_alloc_frmr(struct ib_pd *pd, int max_page_list_len); struct ib_fast_reg_page_list *ocrdma_alloc_frmr_page_list(struct ib_device *ibdev, -- 1.8.4.3 -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html