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-rw-r--r--drivers/infiniband/hw/ocrdma/ocrdma.h3
-rw-r--r--drivers/infiniband/hw/ocrdma/ocrdma_hw.c5
-rw-r--r--drivers/infiniband/hw/ocrdma/ocrdma_hw.h7
-rw-r--r--drivers/infiniband/hw/ocrdma/ocrdma_main.c1
-rw-r--r--drivers/infiniband/hw/ocrdma/ocrdma_sli.h4
-rw-r--r--drivers/infiniband/hw/ocrdma/ocrdma_verbs.c359
6 files changed, 339 insertions, 40 deletions
diff --git a/drivers/infiniband/hw/ocrdma/ocrdma.h b/drivers/infiniband/hw/ocrdma/ocrdma.h
index 1c8ba4cefcba..fde8fb097a8c 100644
--- a/drivers/infiniband/hw/ocrdma/ocrdma.h
+++ b/drivers/infiniband/hw/ocrdma/ocrdma.h
@@ -324,6 +324,9 @@ struct ocrdma_ucontext {
struct list_head mm_head;
struct mutex mm_list_lock; /* protects list entries of mm type */
+ struct ocrdma_pd *cntxt_pd;
+ int pd_in_use;
+
struct {
u32 *va;
dma_addr_t pa;
diff --git a/drivers/infiniband/hw/ocrdma/ocrdma_hw.c b/drivers/infiniband/hw/ocrdma/ocrdma_hw.c
index 16ce664dc466..618c2124e619 100644
--- a/drivers/infiniband/hw/ocrdma/ocrdma_hw.c
+++ b/drivers/infiniband/hw/ocrdma/ocrdma_hw.c
@@ -1309,7 +1309,7 @@ static void ocrdma_unbind_eq(struct ocrdma_dev *dev, u16 eq_id)
}
int ocrdma_mbx_create_cq(struct ocrdma_dev *dev, struct ocrdma_cq *cq,
- int entries, int dpp_cq)
+ int entries, int dpp_cq, u16 pd_id)
{
int status = -ENOMEM; int max_hw_cqe;
struct pci_dev *pdev = dev->nic_info.pdev;
@@ -1357,7 +1357,7 @@ int ocrdma_mbx_create_cq(struct ocrdma_dev *dev, struct ocrdma_cq *cq,
cmd->cmd.ev_cnt_flags = OCRDMA_CREATE_CQ_DEF_FLAGS;
cq->eqn = ocrdma_bind_eq(dev);
- cmd->cmd.req.rsvd_version = OCRDMA_CREATE_CQ_VER2;
+ cmd->cmd.req.rsvd_version = OCRDMA_CREATE_CQ_VER3;
cqe_count = cq->len / cqe_size;
if (cqe_count > 1024) {
/* Set cnt to 3 to indicate more than 1024 cq entries */
@@ -1393,6 +1393,7 @@ int ocrdma_mbx_create_cq(struct ocrdma_dev *dev, struct ocrdma_cq *cq,
cq->phase_change = true;
}
+ cmd->cmd.pd_id = pd_id; /* valid only for v3 */
ocrdma_build_q_pages(&cmd->cmd.pa[0], hw_pages, cq->pa, page_size);
status = ocrdma_mbx_cmd(dev, (struct ocrdma_mqe *)cmd);
if (status)
diff --git a/drivers/infiniband/hw/ocrdma/ocrdma_hw.h b/drivers/infiniband/hw/ocrdma/ocrdma_hw.h
index cc90ac3b6d42..044db74e780a 100644
--- a/drivers/infiniband/hw/ocrdma/ocrdma_hw.h
+++ b/drivers/infiniband/hw/ocrdma/ocrdma_hw.h
@@ -78,6 +78,11 @@ static inline void ocrdma_copy_le32_to_cpu(void *dst, void *src, u32 len)
#endif
}
+static inline u64 ocrdma_get_db_addr(struct ocrdma_dev *dev, u32 pdid)
+{
+ return dev->nic_info.unmapped_db + (pdid * dev->nic_info.db_page_size);
+}
+
int ocrdma_init_hw(struct ocrdma_dev *);
void ocrdma_cleanup_hw(struct ocrdma_dev *);
@@ -100,7 +105,7 @@ int ocrdma_mbx_dealloc_lkey(struct ocrdma_dev *, int fmr, u32 lkey);
int ocrdma_reg_mr(struct ocrdma_dev *, struct ocrdma_hw_mr *hwmr,
u32 pd_id, int acc);
int ocrdma_mbx_create_cq(struct ocrdma_dev *, struct ocrdma_cq *,
- int entries, int dpp_cq);
+ int entries, int dpp_cq, u16 pd_id);
int ocrdma_mbx_destroy_cq(struct ocrdma_dev *, struct ocrdma_cq *);
int ocrdma_mbx_create_qp(struct ocrdma_qp *, struct ib_qp_init_attr *attrs,
diff --git a/drivers/infiniband/hw/ocrdma/ocrdma_main.c b/drivers/infiniband/hw/ocrdma/ocrdma_main.c
index 4eeea56f7b31..7d43ba924bfb 100644
--- a/drivers/infiniband/hw/ocrdma/ocrdma_main.c
+++ b/drivers/infiniband/hw/ocrdma/ocrdma_main.c
@@ -326,6 +326,7 @@ static int ocrdma_register_device(struct ocrdma_dev *dev)
dev->ibdev.req_notify_cq = ocrdma_arm_cq;
dev->ibdev.get_dma_mr = ocrdma_get_dma_mr;
+ dev->ibdev.reg_phys_mr = ocrdma_reg_kernel_mr;
dev->ibdev.dereg_mr = ocrdma_dereg_mr;
dev->ibdev.reg_user_mr = ocrdma_reg_user_mr;
diff --git a/drivers/infiniband/hw/ocrdma/ocrdma_sli.h b/drivers/infiniband/hw/ocrdma/ocrdma_sli.h
index d1a9fb72a4bd..1e2992fee4be 100644
--- a/drivers/infiniband/hw/ocrdma/ocrdma_sli.h
+++ b/drivers/infiniband/hw/ocrdma/ocrdma_sli.h
@@ -547,6 +547,7 @@ enum {
enum {
OCRDMA_CREATE_CQ_VER2 = 2,
+ OCRDMA_CREATE_CQ_VER3 = 3,
OCRDMA_CREATE_CQ_PAGE_CNT_MASK = 0xFFFF,
OCRDMA_CREATE_CQ_PAGE_SIZE_SHIFT = 16,
@@ -580,7 +581,8 @@ struct ocrdma_create_cq_cmd {
u32 pgsz_pgcnt;
u32 ev_cnt_flags;
u32 eqn;
- u32 cqe_count;
+ u16 cqe_count;
+ u16 pd_id;
u32 rsvd6;
struct ocrdma_pa pa[OCRDMA_CREATE_CQ_MAX_PAGES];
};
diff --git a/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c b/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c
index 3e80f65f42a3..e554fc258a68 100644
--- a/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c
+++ b/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c
@@ -215,6 +215,108 @@ static bool ocrdma_search_mmap(struct ocrdma_ucontext *uctx, u64 phy_addr,
return found;
}
+static struct ocrdma_pd *_ocrdma_alloc_pd(struct ocrdma_dev *dev,
+ struct ocrdma_ucontext *uctx,
+ struct ib_udata *udata)
+{
+ struct ocrdma_pd *pd = NULL;
+ int status = 0;
+
+ pd = kzalloc(sizeof(*pd), GFP_KERNEL);
+ if (!pd)
+ return ERR_PTR(-ENOMEM);
+
+ if (udata && uctx) {
+ pd->dpp_enabled =
+ dev->nic_info.dev_family == OCRDMA_GEN2_FAMILY;
+ pd->num_dpp_qp =
+ pd->dpp_enabled ? OCRDMA_PD_MAX_DPP_ENABLED_QP : 0;
+ }
+
+retry:
+ status = ocrdma_mbx_alloc_pd(dev, pd);
+ if (status) {
+ if (pd->dpp_enabled) {
+ pd->dpp_enabled = false;
+ pd->num_dpp_qp = 0;
+ goto retry;
+ } else {
+ kfree(pd);
+ return ERR_PTR(status);
+ }
+ }
+
+ return pd;
+}
+
+static inline int is_ucontext_pd(struct ocrdma_ucontext *uctx,
+ struct ocrdma_pd *pd)
+{
+ return (uctx->cntxt_pd == pd ? true : false);
+}
+
+static int _ocrdma_dealloc_pd(struct ocrdma_dev *dev,
+ struct ocrdma_pd *pd)
+{
+ int status = 0;
+
+ status = ocrdma_mbx_dealloc_pd(dev, pd);
+ kfree(pd);
+ return status;
+}
+
+static int ocrdma_alloc_ucontext_pd(struct ocrdma_dev *dev,
+ struct ocrdma_ucontext *uctx,
+ struct ib_udata *udata)
+{
+ int status = 0;
+
+ uctx->cntxt_pd = _ocrdma_alloc_pd(dev, uctx, udata);
+ if (IS_ERR(uctx->cntxt_pd)) {
+ status = PTR_ERR(uctx->cntxt_pd);
+ uctx->cntxt_pd = NULL;
+ goto err;
+ }
+
+ uctx->cntxt_pd->uctx = uctx;
+ uctx->cntxt_pd->ibpd.device = &dev->ibdev;
+err:
+ return status;
+}
+
+static int ocrdma_dealloc_ucontext_pd(struct ocrdma_ucontext *uctx)
+{
+ int status = 0;
+ struct ocrdma_pd *pd = uctx->cntxt_pd;
+ struct ocrdma_dev *dev = get_ocrdma_dev(pd->ibpd.device);
+
+ BUG_ON(uctx->pd_in_use);
+ uctx->cntxt_pd = NULL;
+ status = _ocrdma_dealloc_pd(dev, pd);
+ return status;
+}
+
+static struct ocrdma_pd *ocrdma_get_ucontext_pd(struct ocrdma_ucontext *uctx)
+{
+ struct ocrdma_pd *pd = NULL;
+
+ mutex_lock(&uctx->mm_list_lock);
+ if (!uctx->pd_in_use) {
+ uctx->pd_in_use = true;
+ pd = uctx->cntxt_pd;
+ }
+ mutex_unlock(&uctx->mm_list_lock);
+
+ return pd;
+}
+
+static void ocrdma_release_ucontext_pd(struct ocrdma_ucontext *uctx)
+{
+ mutex_lock(&uctx->mm_list_lock);
+ uctx->pd_in_use = false;
+ mutex_unlock(&uctx->mm_list_lock);
+}
+
struct ib_ucontext *ocrdma_alloc_ucontext(struct ib_device *ibdev,
struct ib_udata *udata)
{
@@ -249,6 +351,11 @@ struct ib_ucontext *ocrdma_alloc_ucontext(struct ib_device *ibdev,
status = ocrdma_add_mmap(ctx, resp.ah_tbl_page, resp.ah_tbl_len);
if (status)
goto map_err;
+
+ status = ocrdma_alloc_ucontext_pd(dev, ctx, udata);
+ if (status)
+ goto pd_err;
+
resp.dev_id = dev->id;
resp.max_inline_data = dev->attr.max_inline_data;
resp.wqe_size = dev->attr.wqe_size;
@@ -262,6 +369,7 @@ struct ib_ucontext *ocrdma_alloc_ucontext(struct ib_device *ibdev,
return &ctx->ibucontext;
cpy_err:
+pd_err:
ocrdma_del_mmap(ctx, ctx->ah_tbl.pa, ctx->ah_tbl.len);
map_err:
dma_free_coherent(&pdev->dev, ctx->ah_tbl.len, ctx->ah_tbl.va,
@@ -272,11 +380,14 @@ map_err:
int ocrdma_dealloc_ucontext(struct ib_ucontext *ibctx)
{
+ int status = 0;
struct ocrdma_mm *mm, *tmp;
struct ocrdma_ucontext *uctx = get_ocrdma_ucontext(ibctx);
struct ocrdma_dev *dev = get_ocrdma_dev(ibctx->device);
struct pci_dev *pdev = dev->nic_info.pdev;
+ status = ocrdma_dealloc_ucontext_pd(uctx);
+
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,
uctx->ah_tbl.pa);
@@ -286,7 +397,7 @@ int ocrdma_dealloc_ucontext(struct ib_ucontext *ibctx)
kfree(mm);
}
kfree(uctx);
- return 0;
+ return status;
}
int ocrdma_mmap(struct ib_ucontext *context, struct vm_area_struct *vma)
@@ -346,8 +457,7 @@ static int ocrdma_copy_pd_uresp(struct ocrdma_dev *dev, struct ocrdma_pd *pd,
memset(&rsp, 0, sizeof(rsp));
rsp.id = pd->id;
rsp.dpp_enabled = pd->dpp_enabled;
- db_page_addr = dev->nic_info.unmapped_db +
- (pd->id * dev->nic_info.db_page_size);
+ db_page_addr = ocrdma_get_db_addr(dev, pd->id);
db_page_size = dev->nic_info.db_page_size;
status = ocrdma_add_mmap(uctx, db_page_addr, db_page_size);
@@ -386,31 +496,26 @@ struct ib_pd *ocrdma_alloc_pd(struct ib_device *ibdev,
{
struct ocrdma_dev *dev = get_ocrdma_dev(ibdev);
struct ocrdma_pd *pd;
+ struct ocrdma_ucontext *uctx = NULL;
int status;
+ u8 is_uctx_pd = false;
- pd = kzalloc(sizeof(*pd), GFP_KERNEL);
- if (!pd)
- return ERR_PTR(-ENOMEM);
if (udata && context) {
- pd->dpp_enabled =
- (dev->nic_info.dev_family == OCRDMA_GEN2_FAMILY);
- pd->num_dpp_qp =
- pd->dpp_enabled ? OCRDMA_PD_MAX_DPP_ENABLED_QP : 0;
- }
-retry:
- status = ocrdma_mbx_alloc_pd(dev, pd);
- if (status) {
- /* try for pd with out dpp */
- if (pd->dpp_enabled) {
- pd->dpp_enabled = false;
- pd->num_dpp_qp = 0;
- goto retry;
- } else {
- kfree(pd);
- return ERR_PTR(status);
+ uctx = get_ocrdma_ucontext(context);
+ pd = ocrdma_get_ucontext_pd(uctx);
+ if (pd) {
+ is_uctx_pd = true;
+ goto pd_mapping;
}
}
+ pd = _ocrdma_alloc_pd(dev, uctx, udata);
+ if (IS_ERR(pd)) {
+ status = PTR_ERR(pd);
+ goto exit;
+ }
+
+pd_mapping:
if (udata && context) {
status = ocrdma_copy_pd_uresp(dev, pd, context, udata);
if (status)
@@ -419,8 +524,13 @@ retry:
return &pd->ibpd;
err:
- status = ocrdma_mbx_dealloc_pd(dev, pd);
- kfree(pd);
+ if (is_uctx_pd) {
+ ocrdma_release_ucontext_pd(uctx);
+ } else {
+ status = ocrdma_mbx_dealloc_pd(dev, pd);
+ kfree(pd);
+ }
+exit:
return ERR_PTR(status);
}
@@ -428,20 +538,25 @@ int ocrdma_dealloc_pd(struct ib_pd *ibpd)
{
struct ocrdma_pd *pd = get_ocrdma_pd(ibpd);
struct ocrdma_dev *dev = get_ocrdma_dev(ibpd->device);
- int status;
+ struct ocrdma_ucontext *uctx = NULL;
+ int status = 0;
u64 usr_db;
- status = ocrdma_mbx_dealloc_pd(dev, pd);
- if (pd->uctx) {
+ uctx = pd->uctx;
+ if (uctx) {
u64 dpp_db = dev->nic_info.dpp_unmapped_addr +
- (pd->id * PAGE_SIZE);
+ (pd->id * PAGE_SIZE);
if (pd->dpp_enabled)
ocrdma_del_mmap(pd->uctx, dpp_db, PAGE_SIZE);
- usr_db = dev->nic_info.unmapped_db +
- (pd->id * dev->nic_info.db_page_size);
+ usr_db = ocrdma_get_db_addr(dev, pd->id);
ocrdma_del_mmap(pd->uctx, usr_db, dev->nic_info.db_page_size);
+
+ if (is_ucontext_pd(uctx, pd)) {
+ ocrdma_release_ucontext_pd(uctx);
+ return status;
+ }
}
- kfree(pd);
+ status = _ocrdma_dealloc_pd(dev, pd);
return status;
}
@@ -701,7 +816,7 @@ static int ocrdma_copy_cq_uresp(struct ocrdma_dev *dev, struct ocrdma_cq *cq,
struct ib_ucontext *ib_ctx)
{
int status;
- struct ocrdma_ucontext *uctx;
+ struct ocrdma_ucontext *uctx = get_ocrdma_ucontext(ib_ctx);
struct ocrdma_create_cq_uresp uresp;
memset(&uresp, 0, sizeof(uresp));
@@ -710,7 +825,7 @@ static int ocrdma_copy_cq_uresp(struct ocrdma_dev *dev, struct ocrdma_cq *cq,
uresp.num_pages = 1;
uresp.max_hw_cqe = cq->max_hw_cqe;
uresp.page_addr[0] = cq->pa;
- uresp.db_page_addr = dev->nic_info.unmapped_db;
+ uresp.db_page_addr = ocrdma_get_db_addr(dev, uctx->cntxt_pd->id);
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));
@@ -719,7 +834,6 @@ static int ocrdma_copy_cq_uresp(struct ocrdma_dev *dev, struct ocrdma_cq *cq,
__func__, dev->id, cq->id);
goto err;
}
- uctx = get_ocrdma_ucontext(ib_ctx);
status = ocrdma_add_mmap(uctx, uresp.db_page_addr, uresp.db_page_size);
if (status)
goto err;
@@ -739,6 +853,8 @@ struct ib_cq *ocrdma_create_cq(struct ib_device *ibdev, int entries, int vector,
{
struct ocrdma_cq *cq;
struct ocrdma_dev *dev = get_ocrdma_dev(ibdev);
+ struct ocrdma_ucontext *uctx = NULL;
+ u16 pd_id = 0;
int status;
struct ocrdma_create_cq_ureq ureq;
@@ -756,7 +872,12 @@ struct ib_cq *ocrdma_create_cq(struct ib_device *ibdev, int entries, int vector,
INIT_LIST_HEAD(&cq->sq_head);
INIT_LIST_HEAD(&cq->rq_head);
- status = ocrdma_mbx_create_cq(dev, cq, entries, ureq.dpp_cq);
+ if (ib_ctx) {
+ uctx = get_ocrdma_ucontext(ib_ctx);
+ pd_id = uctx->cntxt_pd->id;
+ }
+
+ status = ocrdma_mbx_create_cq(dev, cq, entries, ureq.dpp_cq, pd_id);
if (status) {
kfree(cq);
return ERR_PTR(status);
@@ -797,13 +918,16 @@ int ocrdma_destroy_cq(struct ib_cq *ibcq)
int status;
struct ocrdma_cq *cq = get_ocrdma_cq(ibcq);
struct ocrdma_dev *dev = get_ocrdma_dev(ibcq->device);
+ int pdid = 0;
status = ocrdma_mbx_destroy_cq(dev, cq);
if (cq->ucontext) {
+ pdid = cq->ucontext->cntxt_pd->id;
ocrdma_del_mmap(cq->ucontext, (u64) cq->pa,
PAGE_ALIGN(cq->len));
- ocrdma_del_mmap(cq->ucontext, dev->nic_info.unmapped_db,
+ ocrdma_del_mmap(cq->ucontext,
+ ocrdma_get_db_addr(dev, pdid),
dev->nic_info.db_page_size);
}
dev->cq_tbl[cq->id] = NULL;
@@ -2686,3 +2810,166 @@ void ocrdma_free_frmr_page_list(struct ib_fast_reg_page_list *page_list)
{
kfree(page_list);
}
+
+#define MAX_KERNEL_PBE_SIZE 65536
+static inline int count_kernel_pbes(struct ib_phys_buf *buf_list,
+ int buf_cnt, u32 *pbe_size)
+{
+ u64 total_size = 0;
+ u64 buf_size = 0;
+ int i;
+ *pbe_size = roundup(buf_list[0].size, PAGE_SIZE);
+ *pbe_size = roundup_pow_of_two(*pbe_size);
+
+ /* find the smallest PBE size that we can have */
+ for (i = 0; i < buf_cnt; i++) {
+ /* first addr may not be page aligned, so ignore checking */
+ if ((i != 0) && ((buf_list[i].addr & ~PAGE_MASK) ||
+ (buf_list[i].size & ~PAGE_MASK))) {
+ return 0;
+ }
+
+ /* if configured PBE size is greater then the chosen one,
+ * reduce the PBE size.
+ */
+ buf_size = roundup(buf_list[i].size, PAGE_SIZE);
+ /* pbe_size has to be even multiple of 4K 1,2,4,8...*/
+ buf_size = roundup_pow_of_two(buf_size);
+ if (*pbe_size > buf_size)
+ *pbe_size = buf_size;
+
+ total_size += buf_size;
+ }
+ *pbe_size = *pbe_size > MAX_KERNEL_PBE_SIZE ?
+ (MAX_KERNEL_PBE_SIZE) : (*pbe_size);
+
+ /* num_pbes = total_size / (*pbe_size); this is implemented below. */
+
+ return total_size >> ilog2(*pbe_size);
+}
+
+static void build_kernel_pbes(struct ib_phys_buf *buf_list, int ib_buf_cnt,
+ u32 pbe_size, struct ocrdma_pbl *pbl_tbl,
+ struct ocrdma_hw_mr *hwmr)
+{
+ int i;
+ int idx;
+ int pbes_per_buf = 0;
+ u64 buf_addr = 0;
+ int num_pbes;
+ struct ocrdma_pbe *pbe;
+ int total_num_pbes = 0;
+
+ if (!hwmr->num_pbes)
+ return;
+
+ pbe = (struct ocrdma_pbe *)pbl_tbl->va;
+ num_pbes = 0;
+
+ /* go through the OS phy regions & fill hw pbe entries into pbls. */
+ for (i = 0; i < ib_buf_cnt; i++) {
+ buf_addr = buf_list[i].addr;
+ pbes_per_buf =
+ roundup_pow_of_two(roundup(buf_list[i].size, PAGE_SIZE)) /
+ pbe_size;
+ hwmr->len += buf_list[i].size;
+ /* number of pbes can be more for one OS buf, when
+ * buffers are of different sizes.
+ * split the ib_buf to one or more pbes.
+ */
+ for (idx = 0; idx < pbes_per_buf; idx++) {
+ /* we program always page aligned addresses,
+ * first unaligned address is taken care by fbo.
+ */
+ if (i == 0) {
+ /* for non zero fbo, assign the
+ * start of the page.
+ */
+ pbe->pa_lo =
+ cpu_to_le32((u32) (buf_addr & PAGE_MASK));
+ pbe->pa_hi =
+ cpu_to_le32((u32) upper_32_bits(buf_addr));
+ } else {
+ pbe->pa_lo =
+ cpu_to_le32((u32) (buf_addr & 0xffffffff));
+ pbe->pa_hi =
+ cpu_to_le32((u32) upper_32_bits(buf_addr));
+ }
+ buf_addr += pbe_size;
+ num_pbes += 1;
+ total_num_pbes += 1;
+ pbe++;
+
+ if (total_num_pbes == hwmr->num_pbes)
+ goto mr_tbl_done;
+ /* if the pbl is full storing the pbes,
+ * move to next pbl.
+ */
+ if (num_pbes == (hwmr->pbl_size/sizeof(u64))) {
+ pbl_tbl++;
+ pbe = (struct ocrdma_pbe *)pbl_tbl->va;
+ num_pbes = 0;
+ }
+ }
+ }
+mr_tbl_done:
+ return;
+}
+
+struct ib_mr *ocrdma_reg_kernel_mr(struct ib_pd *ibpd,
+ struct ib_phys_buf *buf_list,
+ int buf_cnt, int acc, u64 *iova_start)
+{
+ int status = -ENOMEM;
+ struct ocrdma_mr *mr;
+ struct ocrdma_pd *pd = get_ocrdma_pd(ibpd);
+ struct ocrdma_dev *dev = get_ocrdma_dev(ibpd->device);
+ u32 num_pbes;
+ u32 pbe_size = 0;
+
+ if ((acc & IB_ACCESS_REMOTE_WRITE) && !(acc & IB_ACCESS_LOCAL_WRITE))
+ return ERR_PTR(-EINVAL);
+
+ mr = kzalloc(sizeof(*mr), GFP_KERNEL);
+ if (!mr)
+ return ERR_PTR(status);
+
+ num_pbes = count_kernel_pbes(buf_list, buf_cnt, &pbe_size);
+ if (num_pbes == 0) {
+ status = -EINVAL;
+ goto pbl_err;
+ }
+ status = ocrdma_get_pbl_info(dev, mr, num_pbes);
+ if (status)
+ goto pbl_err;
+
+ mr->hwmr.pbe_size = pbe_size;
+ mr->hwmr.fbo = *iova_start - (buf_list[0].addr & PAGE_MASK);
+ mr->hwmr.va = *iova_start;
+ mr->hwmr.local_rd = 1;
+ mr->hwmr.remote_wr = (acc & IB_ACCESS_REMOTE_WRITE) ? 1 : 0;
+ mr->hwmr.remote_rd = (acc & IB_ACCESS_REMOTE_READ) ? 1 : 0;
+ mr->hwmr.local_wr = (acc & IB_ACCESS_LOCAL_WRITE) ? 1 : 0;
+ mr->hwmr.remote_atomic = (acc & IB_ACCESS_REMOTE_ATOMIC) ? 1 : 0;
+ mr->hwmr.mw_bind = (acc & IB_ACCESS_MW_BIND) ? 1 : 0;
+
+ status = ocrdma_build_pbl_tbl(dev, &mr->hwmr);
+ if (status)
+ goto pbl_err;
+ build_kernel_pbes(buf_list, buf_cnt, pbe_size, mr->hwmr.pbl_table,
+ &mr->hwmr);
+ status = ocrdma_reg_mr(dev, &mr->hwmr, pd->id, acc);
+ if (status)
+ goto mbx_err;
+
+ mr->ibmr.lkey = mr->hwmr.lkey;
+ if (mr->hwmr.remote_wr || mr->hwmr.remote_rd)
+ mr->ibmr.rkey = mr->hwmr.lkey;
+ return &mr->ibmr;
+
+mbx_err:
+ ocrdma_free_mr_pbl_tbl(dev, &mr->hwmr);
+pbl_err:
+ kfree(mr);
+ return ERR_PTR(status);
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-04 18:25:41 +0100