RDMA/ocrdma: Remove redundant dev reference
authorNaresh Gottumukkala <bgottumukkala@emulex.com>
Wed, 7 Aug 2013 07:22:33 +0000 (12:52 +0530)
committerRoland Dreier <roland@purestorage.com>
Mon, 12 Aug 2013 17:58:38 +0000 (10:58 -0700)
Remove redundant dev reference from structures:

1) ocrdma_cq.
2) ocrdma_ah.
3) ocrdma_hw_mr.
4) ocrdma_mw.
5) ocrdma_srq.

Signed-off-by: Naresh Gottumukkala <bgottumukkala@emulex.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
drivers/infiniband/hw/ocrdma/ocrdma.h
drivers/infiniband/hw/ocrdma/ocrdma_ah.c
drivers/infiniband/hw/ocrdma/ocrdma_hw.c
drivers/infiniband/hw/ocrdma/ocrdma_hw.h
drivers/infiniband/hw/ocrdma/ocrdma_verbs.c

index 5c00600135ed62f41f5bf1815e03aa67574150cb..8d54dc74ca77be9ea45451371456426530dd7e16 100644 (file)
@@ -172,7 +172,6 @@ struct ocrdma_dev {
 
 struct ocrdma_cq {
        struct ib_cq ibcq;
-       struct ocrdma_dev *dev;
        struct ocrdma_cqe *va;
        u32 phase;
        u32 getp;       /* pointer to pending wrs to
@@ -214,7 +213,6 @@ struct ocrdma_pd {
 
 struct ocrdma_ah {
        struct ib_ah ibah;
-       struct ocrdma_dev *dev;
        struct ocrdma_av *av;
        u16 sgid_index;
        u32 id;
@@ -234,7 +232,6 @@ struct ocrdma_qp_hwq_info {
 
 struct ocrdma_srq {
        struct ib_srq ibsrq;
-       struct ocrdma_dev *dev;
        u8 __iomem *db;
        struct ocrdma_qp_hwq_info rq;
        u64 *rqe_wr_id_tbl;
@@ -293,7 +290,6 @@ struct ocrdma_qp {
 };
 
 struct ocrdma_hw_mr {
-       struct ocrdma_dev *dev;
        u32 lkey;
        u8 fr_mr;
        u8 remote_atomic;
@@ -321,7 +317,6 @@ struct ocrdma_mr {
 
 struct ocrdma_ucontext {
        struct ib_ucontext ibucontext;
-       struct ocrdma_dev *dev;
 
        struct list_head mm_head;
        struct mutex mm_list_lock; /* protects list entries of mm type */
index a6bb3d074d2d2eef495804b8eaeedd7075515b7b..df9e73758afbe344f8327e2cdf8455c2b831b3df 100644 (file)
 #include "ocrdma_ah.h"
 #include "ocrdma_hw.h"
 
-static inline int set_av_attr(struct ocrdma_ah *ah,
+static inline int set_av_attr(struct ocrdma_dev *dev, struct ocrdma_ah *ah,
                                struct ib_ah_attr *attr, int pdid)
 {
        int status = 0;
        u16 vlan_tag; bool vlan_enabled = false;
-       struct ocrdma_dev *dev = ah->dev;
        struct ocrdma_eth_vlan eth;
        struct ocrdma_grh grh;
        int eth_sz;
@@ -100,12 +99,11 @@ struct ib_ah *ocrdma_create_ah(struct ib_pd *ibpd, struct ib_ah_attr *attr)
        ah = kzalloc(sizeof *ah, GFP_ATOMIC);
        if (!ah)
                return ERR_PTR(-ENOMEM);
-       ah->dev = dev;
 
        status = ocrdma_alloc_av(dev, ah);
        if (status)
                goto av_err;
-       status = set_av_attr(ah, attr, pd->id);
+       status = set_av_attr(dev, ah, attr, pd->id);
        if (status)
                goto av_conf_err;
 
@@ -126,7 +124,9 @@ av_err:
 int ocrdma_destroy_ah(struct ib_ah *ibah)
 {
        struct ocrdma_ah *ah = get_ocrdma_ah(ibah);
-       ocrdma_free_av(ah->dev, ah);
+       struct ocrdma_dev *dev = get_ocrdma_dev(ibah->device);
+
+       ocrdma_free_av(dev, ah);
        kfree(ah);
        return 0;
 }
index eb41a1c9ad69ff2f91cc569dee0fb749aeaa7724..6bbcc786ef6d1ef0dbac92db32b3df6238f5025d 100644 (file)
@@ -523,16 +523,21 @@ static int ocrdma_mbx_mq_cq_create(struct ocrdma_dev *dev,
        ocrdma_init_mch(&cmd->req, OCRDMA_CMD_CREATE_CQ,
                        OCRDMA_SUBSYS_COMMON, sizeof(*cmd));
 
-       cmd->pgsz_pgcnt = PAGES_4K_SPANNED(cq->va, cq->size);
+       cmd->req.rsvd_version = OCRDMA_CREATE_CQ_VER2;
+       cmd->pgsz_pgcnt = (cq->size / OCRDMA_MIN_Q_PAGE_SIZE) <<
+               OCRDMA_CREATE_CQ_PAGE_SIZE_SHIFT;
+       cmd->pgsz_pgcnt |= PAGES_4K_SPANNED(cq->va, cq->size);
+
        cmd->ev_cnt_flags = OCRDMA_CREATE_CQ_DEF_FLAGS;
-       cmd->eqn = (eq->id << OCRDMA_CREATE_CQ_EQID_SHIFT);
+       cmd->eqn = eq->id;
+       cmd->cqe_count = cq->size / sizeof(struct ocrdma_mcqe);
 
-       ocrdma_build_q_pages(&cmd->pa[0], cmd->pgsz_pgcnt,
+       ocrdma_build_q_pages(&cmd->pa[0], cq->size / OCRDMA_MIN_Q_PAGE_SIZE,
                             cq->dma, PAGE_SIZE_4K);
        status = be_roce_mcc_cmd(dev->nic_info.netdev,
                                 cmd, sizeof(*cmd), NULL, NULL);
        if (!status) {
-               cq->id = (rsp->cq_id & OCRDMA_CREATE_CQ_RSP_CQ_ID_MASK);
+               cq->id = (u16) (rsp->cq_id & OCRDMA_CREATE_CQ_RSP_CQ_ID_MASK);
                cq->created = true;
        }
        return status;
@@ -2326,7 +2331,7 @@ mbx_err:
        return status;
 }
 
-int ocrdma_mbx_create_srq(struct ocrdma_srq *srq,
+int ocrdma_mbx_create_srq(struct ocrdma_dev *dev, struct ocrdma_srq *srq,
                          struct ib_srq_init_attr *srq_attr,
                          struct ocrdma_pd *pd)
 {
@@ -2336,7 +2341,6 @@ int ocrdma_mbx_create_srq(struct ocrdma_srq *srq,
        struct ocrdma_create_srq_rsp *rsp;
        struct ocrdma_create_srq *cmd;
        dma_addr_t pa;
-       struct ocrdma_dev *dev = srq->dev;
        struct pci_dev *pdev = dev->nic_info.pdev;
        u32 max_rqe_allocated;
 
@@ -2406,13 +2410,15 @@ int ocrdma_mbx_modify_srq(struct ocrdma_srq *srq, struct ib_srq_attr *srq_attr)
 {
        int status = -ENOMEM;
        struct ocrdma_modify_srq *cmd;
+       struct ocrdma_dev *dev = get_ocrdma_dev(srq->ibsrq.device);
+
        cmd = ocrdma_init_emb_mqe(OCRDMA_CMD_CREATE_SRQ, sizeof(*cmd));
        if (!cmd)
                return status;
        cmd->id = srq->id;
        cmd->limit_max_rqe |= srq_attr->srq_limit <<
            OCRDMA_MODIFY_SRQ_LIMIT_SHIFT;
-       status = ocrdma_mbx_cmd(srq->dev, (struct ocrdma_mqe *)cmd);
+       status = ocrdma_mbx_cmd(dev, (struct ocrdma_mqe *)cmd);
        kfree(cmd);
        return status;
 }
@@ -2421,11 +2427,13 @@ int ocrdma_mbx_query_srq(struct ocrdma_srq *srq, struct ib_srq_attr *srq_attr)
 {
        int status = -ENOMEM;
        struct ocrdma_query_srq *cmd;
+       struct ocrdma_dev *dev = get_ocrdma_dev(srq->ibsrq.device);
+
        cmd = ocrdma_init_emb_mqe(OCRDMA_CMD_CREATE_SRQ, sizeof(*cmd));
        if (!cmd)
                return status;
        cmd->id = srq->rq.dbid;
-       status = ocrdma_mbx_cmd(srq->dev, (struct ocrdma_mqe *)cmd);
+       status = ocrdma_mbx_cmd(dev, (struct ocrdma_mqe *)cmd);
        if (status == 0) {
                struct ocrdma_query_srq_rsp *rsp =
                    (struct ocrdma_query_srq_rsp *)cmd;
@@ -2450,7 +2458,7 @@ int ocrdma_mbx_destroy_srq(struct ocrdma_dev *dev, struct ocrdma_srq *srq)
        if (!cmd)
                return status;
        cmd->id = srq->id;
-       status = ocrdma_mbx_cmd(srq->dev, (struct ocrdma_mqe *)cmd);
+       status = ocrdma_mbx_cmd(dev, (struct ocrdma_mqe *)cmd);
        if (srq->rq.va)
                dma_free_coherent(&pdev->dev, srq->rq.len,
                                  srq->rq.va, srq->rq.pa);
index be5db77404dbae1c9660997d05d85e0ac16c1027..5d8e6f518f874cf4e8b5a338fc5837b063542b60 100644 (file)
@@ -112,8 +112,7 @@ int ocrdma_mbx_modify_qp(struct ocrdma_dev *, struct ocrdma_qp *,
 int ocrdma_mbx_query_qp(struct ocrdma_dev *, struct ocrdma_qp *,
                        struct ocrdma_qp_params *param);
 int ocrdma_mbx_destroy_qp(struct ocrdma_dev *, struct ocrdma_qp *);
-
-int ocrdma_mbx_create_srq(struct ocrdma_srq *,
+int ocrdma_mbx_create_srq(struct ocrdma_dev *, struct ocrdma_srq *,
                          struct ib_srq_init_attr *,
                          struct ocrdma_pd *);
 int ocrdma_mbx_modify_srq(struct ocrdma_srq *, struct ib_srq_attr *);
index 77fc50a5cc933585b30f60461c01112854c4ff41..c9ace64fc3432cab957fcc32261e51487d2396bc 100644 (file)
@@ -229,7 +229,6 @@ struct ib_ucontext *ocrdma_alloc_ucontext(struct ib_device *ibdev,
        ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
        if (!ctx)
                return ERR_PTR(-ENOMEM);
-       ctx->dev = dev;
        INIT_LIST_HEAD(&ctx->mm_head);
        mutex_init(&ctx->mm_list_lock);
 
@@ -274,7 +273,8 @@ int ocrdma_dealloc_ucontext(struct ib_ucontext *ibctx)
 {
        struct ocrdma_mm *mm, *tmp;
        struct ocrdma_ucontext *uctx = get_ocrdma_ucontext(ibctx);
-       struct pci_dev *pdev = uctx->dev->nic_info.pdev;
+       struct ocrdma_dev *dev = get_ocrdma_dev(ibctx->device);
+       struct pci_dev *pdev = dev->nic_info.pdev;
 
        ocrdma_del_mmap(uctx, uctx->ah_tbl.pa, uctx->ah_tbl.len);
        dma_free_coherent(&pdev->dev, uctx->ah_tbl.len, uctx->ah_tbl.va,
@@ -291,7 +291,7 @@ int ocrdma_dealloc_ucontext(struct ib_ucontext *ibctx)
 int ocrdma_mmap(struct ib_ucontext *context, struct vm_area_struct *vma)
 {
        struct ocrdma_ucontext *ucontext = get_ocrdma_ucontext(context);
-       struct ocrdma_dev *dev = ucontext->dev;
+       struct ocrdma_dev *dev = get_ocrdma_dev(context->device);
        unsigned long vm_page = vma->vm_pgoff << PAGE_SHIFT;
        u64 unmapped_db = (u64) dev->nic_info.unmapped_db;
        unsigned long len = (vma->vm_end - vma->vm_start);
@@ -432,11 +432,10 @@ int ocrdma_dealloc_pd(struct ib_pd *ibpd)
        return status;
 }
 
-static int ocrdma_alloc_lkey(struct ocrdma_mr *mr, u32 pdid, int acc,
-                           u32 num_pbls, u32 addr_check)
+static int ocrdma_alloc_lkey(struct ocrdma_dev *dev, struct ocrdma_mr *mr,
+                           u32 pdid, int acc, u32 num_pbls, u32 addr_check)
 {
        int status;
-       struct ocrdma_dev *dev = mr->hwmr.dev;
 
        mr->hwmr.fr_mr = 0;
        mr->hwmr.local_rd = 1;
@@ -473,8 +472,7 @@ struct ib_mr *ocrdma_get_dma_mr(struct ib_pd *ibpd, int acc)
        if (!mr)
                return ERR_PTR(-ENOMEM);
 
-       mr->hwmr.dev = dev;
-       status = ocrdma_alloc_lkey(mr, pd->id, acc, 0,
+       status = ocrdma_alloc_lkey(dev, mr, pd->id, acc, 0,
                                   OCRDMA_ADDR_CHECK_DISABLE);
        if (status) {
                kfree(mr);
@@ -503,7 +501,8 @@ static void ocrdma_free_mr_pbl_tbl(struct ocrdma_dev *dev,
        }
 }
 
-static int ocrdma_get_pbl_info(struct ocrdma_mr *mr, u32 num_pbes)
+static int ocrdma_get_pbl_info(struct ocrdma_dev *dev, struct ocrdma_mr *mr,
+                             u32 num_pbes)
 {
        u32 num_pbls = 0;
        u32 idx = 0;
@@ -519,7 +518,7 @@ static int ocrdma_get_pbl_info(struct ocrdma_mr *mr, u32 num_pbes)
                num_pbls = roundup(num_pbes, (pbl_size / sizeof(u64)));
                num_pbls = num_pbls / (pbl_size / sizeof(u64));
                idx++;
-       } while (num_pbls >= mr->hwmr.dev->attr.max_num_mr_pbl);
+       } while (num_pbls >= dev->attr.max_num_mr_pbl);
 
        mr->hwmr.num_pbes = num_pbes;
        mr->hwmr.num_pbls = num_pbls;
@@ -627,14 +626,13 @@ struct ib_mr *ocrdma_reg_user_mr(struct ib_pd *ibpd, u64 start, u64 len,
        mr = kzalloc(sizeof(*mr), GFP_KERNEL);
        if (!mr)
                return ERR_PTR(status);
-       mr->hwmr.dev = dev;
        mr->umem = ib_umem_get(ibpd->uobject->context, start, len, acc, 0);
        if (IS_ERR(mr->umem)) {
                status = -EFAULT;
                goto umem_err;
        }
        num_pbes = ib_umem_page_count(mr->umem);
-       status = ocrdma_get_pbl_info(mr, num_pbes);
+       status = ocrdma_get_pbl_info(dev, mr, num_pbes);
        if (status)
                goto umem_err;
 
@@ -670,7 +668,7 @@ umem_err:
 int ocrdma_dereg_mr(struct ib_mr *ib_mr)
 {
        struct ocrdma_mr *mr = get_ocrdma_mr(ib_mr);
-       struct ocrdma_dev *dev = mr->hwmr.dev;
+       struct ocrdma_dev *dev = get_ocrdma_dev(ib_mr->device);
        int status;
 
        status = ocrdma_mbx_dealloc_lkey(dev, mr->hwmr.fr_mr, mr->hwmr.lkey);
@@ -685,7 +683,8 @@ int ocrdma_dereg_mr(struct ib_mr *ib_mr)
        return status;
 }
 
-static int ocrdma_copy_cq_uresp(struct ocrdma_cq *cq, struct ib_udata *udata,
+static int ocrdma_copy_cq_uresp(struct ocrdma_dev *dev, struct ocrdma_cq *cq,
+                               struct ib_udata *udata,
                                struct ib_ucontext *ib_ctx)
 {
        int status;
@@ -698,13 +697,13 @@ static int ocrdma_copy_cq_uresp(struct ocrdma_cq *cq, struct ib_udata *udata,
        uresp.num_pages = 1;
        uresp.max_hw_cqe = cq->max_hw_cqe;
        uresp.page_addr[0] = cq->pa;
-       uresp.db_page_addr = cq->dev->nic_info.unmapped_db;
-       uresp.db_page_size = cq->dev->nic_info.db_page_size;
+       uresp.db_page_addr = dev->nic_info.unmapped_db;
+       uresp.db_page_size = dev->nic_info.db_page_size;
        uresp.phase_change = cq->phase_change ? 1 : 0;
        status = ib_copy_to_udata(udata, &uresp, sizeof(uresp));
        if (status) {
                pr_err("%s(%d) copy error cqid=0x%x.\n",
-                      __func__, cq->dev->id, cq->id);
+                      __func__, dev->id, cq->id);
                goto err;
        }
        uctx = get_ocrdma_ucontext(ib_ctx);
@@ -743,7 +742,6 @@ struct ib_cq *ocrdma_create_cq(struct ib_device *ibdev, int entries, int vector,
        spin_lock_init(&cq->comp_handler_lock);
        INIT_LIST_HEAD(&cq->sq_head);
        INIT_LIST_HEAD(&cq->rq_head);
-       cq->dev = dev;
 
        status = ocrdma_mbx_create_cq(dev, cq, entries, ureq.dpp_cq);
        if (status) {
@@ -751,7 +749,7 @@ struct ib_cq *ocrdma_create_cq(struct ib_device *ibdev, int entries, int vector,
                return ERR_PTR(status);
        }
        if (ib_ctx) {
-               status = ocrdma_copy_cq_uresp(cq, udata, ib_ctx);
+               status = ocrdma_copy_cq_uresp(dev, cq, udata, ib_ctx);
                if (status)
                        goto ctx_err;
        }
@@ -785,7 +783,7 @@ int ocrdma_destroy_cq(struct ib_cq *ibcq)
 {
        int status;
        struct ocrdma_cq *cq = get_ocrdma_cq(ibcq);
-       struct ocrdma_dev *dev = cq->dev;
+       struct ocrdma_dev *dev = get_ocrdma_dev(ibcq->device);
 
        status = ocrdma_mbx_destroy_cq(dev, cq);
 
@@ -1457,7 +1455,8 @@ int ocrdma_destroy_qp(struct ib_qp *ibqp)
        return status;
 }
 
-static int ocrdma_copy_srq_uresp(struct ocrdma_srq *srq, struct ib_udata *udata)
+static int ocrdma_copy_srq_uresp(struct ocrdma_dev *dev, struct ocrdma_srq *srq,
+                               struct ib_udata *udata)
 {
        int status;
        struct ocrdma_create_srq_uresp uresp;
@@ -1467,11 +1466,11 @@ static int ocrdma_copy_srq_uresp(struct ocrdma_srq *srq, struct ib_udata *udata)
        uresp.num_rq_pages = 1;
        uresp.rq_page_addr[0] = srq->rq.pa;
        uresp.rq_page_size = srq->rq.len;
-       uresp.db_page_addr = srq->dev->nic_info.unmapped_db +
-           (srq->pd->id * srq->dev->nic_info.db_page_size);
-       uresp.db_page_size = srq->dev->nic_info.db_page_size;
+       uresp.db_page_addr = dev->nic_info.unmapped_db +
+           (srq->pd->id * dev->nic_info.db_page_size);
+       uresp.db_page_size = dev->nic_info.db_page_size;
        uresp.num_rqe_allocated = srq->rq.max_cnt;
-       if (srq->dev->nic_info.dev_family == OCRDMA_GEN2_FAMILY) {
+       if (dev->nic_info.dev_family == OCRDMA_GEN2_FAMILY) {
                uresp.db_rq_offset = OCRDMA_DB_GEN2_RQ1_OFFSET;
                uresp.db_shift = 24;
        } else {
@@ -1508,10 +1507,9 @@ struct ib_srq *ocrdma_create_srq(struct ib_pd *ibpd,
                return ERR_PTR(status);
 
        spin_lock_init(&srq->q_lock);
-       srq->dev = dev;
        srq->pd = pd;
        srq->db = dev->nic_info.db + (pd->id * dev->nic_info.db_page_size);
-       status = ocrdma_mbx_create_srq(srq, init_attr, pd);
+       status = ocrdma_mbx_create_srq(dev, srq, init_attr, pd);
        if (status)
                goto err;
 
@@ -1538,7 +1536,7 @@ struct ib_srq *ocrdma_create_srq(struct ib_pd *ibpd,
        }
 
        if (udata) {
-               status = ocrdma_copy_srq_uresp(srq, udata);
+               status = ocrdma_copy_srq_uresp(dev, srq, udata);
                if (status)
                        goto arm_err;
        }
@@ -1584,10 +1582,9 @@ int ocrdma_destroy_srq(struct ib_srq *ibsrq)
 {
        int status;
        struct ocrdma_srq *srq;
-       struct ocrdma_dev *dev;
+       struct ocrdma_dev *dev = get_ocrdma_dev(ibsrq->device);
 
        srq = get_ocrdma_srq(ibsrq);
-       dev = srq->dev;
 
        status = ocrdma_mbx_destroy_srq(dev, srq);
 
@@ -2354,7 +2351,7 @@ static int ocrdma_poll_hwcq(struct ocrdma_cq *cq, int num_entries,
        bool expand = false;
        int polled_hw_cqes = 0;
        struct ocrdma_qp *qp = NULL;
-       struct ocrdma_dev *dev = cq->dev;
+       struct ocrdma_dev *dev = get_ocrdma_dev(cq->ibcq.device);
        struct ocrdma_cqe *cqe;
        u16 cur_getp; bool polled = false; bool stop = false;
 
@@ -2435,14 +2432,11 @@ static int ocrdma_add_err_cqe(struct ocrdma_cq *cq, int num_entries,
 int ocrdma_poll_cq(struct ib_cq *ibcq, int num_entries, struct ib_wc *wc)
 {
        int cqes_to_poll = num_entries;
-       struct ocrdma_cq *cq = NULL;
-       unsigned long flags;
-       struct ocrdma_dev *dev;
+       struct ocrdma_cq *cq = get_ocrdma_cq(ibcq);
+       struct ocrdma_dev *dev = get_ocrdma_dev(ibcq->device);
        int num_os_cqe = 0, err_cqes = 0;
        struct ocrdma_qp *qp;
-
-       cq = get_ocrdma_cq(ibcq);
-       dev = cq->dev;
+       unsigned long flags;
 
        /* poll cqes from adapter CQ */
        spin_lock_irqsave(&cq->cq_lock, flags);
@@ -2473,16 +2467,14 @@ int ocrdma_poll_cq(struct ib_cq *ibcq, int num_entries, struct ib_wc *wc)
 
 int ocrdma_arm_cq(struct ib_cq *ibcq, enum ib_cq_notify_flags cq_flags)
 {
-       struct ocrdma_cq *cq;
-       unsigned long flags;
-       struct ocrdma_dev *dev;
+       struct ocrdma_cq *cq = get_ocrdma_cq(ibcq);
+       struct ocrdma_dev *dev = get_ocrdma_dev(ibcq->device);
        u16 cq_id;
        u16 cur_getp;
        struct ocrdma_cqe *cqe;
+       unsigned long flags;
 
-       cq = get_ocrdma_cq(ibcq);
        cq_id = cq->id;
-       dev = cq->dev;
 
        spin_lock_irqsave(&cq->cq_lock, flags);
        if (cq_flags & IB_CQ_NEXT_COMP || cq_flags & IB_CQ_SOLICITED)
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