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Diffstat (limited to 'drivers/infiniband/hw/mthca')
-rw-r--r--drivers/infiniband/hw/mthca/mthca_main.c2
-rw-r--r--drivers/infiniband/hw/mthca/mthca_provider.c139
-rw-r--r--drivers/infiniband/hw/mthca/mthca_qp.c13
-rw-r--r--drivers/infiniband/hw/mthca/mthca_srq.c21
4 files changed, 81 insertions, 94 deletions
diff --git a/drivers/infiniband/hw/mthca/mthca_main.c b/drivers/infiniband/hw/mthca/mthca_main.c
index 92c49bff22bc..fe9654a7af71 100644
--- a/drivers/infiniband/hw/mthca/mthca_main.c
+++ b/drivers/infiniband/hw/mthca/mthca_main.c
@@ -961,7 +961,7 @@ static int __mthca_init_one(struct pci_dev *pdev, int hca_type)
/* We can handle large RDMA requests, so allow larger segments. */
dma_set_max_seg_size(&pdev->dev, 1024 * 1024 * 1024);
- mdev = (struct mthca_dev *) ib_alloc_device(sizeof *mdev);
+ mdev = ib_alloc_device(mthca_dev, ib_dev);
if (!mdev) {
dev_err(&pdev->dev, "Device struct alloc failed, "
"aborting.\n");
diff --git a/drivers/infiniband/hw/mthca/mthca_provider.c b/drivers/infiniband/hw/mthca/mthca_provider.c
index e3e9dd54caa2..d063d7a37762 100644
--- a/drivers/infiniband/hw/mthca/mthca_provider.c
+++ b/drivers/infiniband/hw/mthca/mthca_provider.c
@@ -37,6 +37,7 @@
#include <rdma/ib_smi.h>
#include <rdma/ib_umem.h>
#include <rdma/ib_user_verbs.h>
+#include <rdma/uverbs_ioctl.h>
#include <linux/sched.h>
#include <linux/slab.h>
@@ -300,17 +301,16 @@ static int mthca_query_gid(struct ib_device *ibdev, u8 port,
return err;
}
-static struct ib_ucontext *mthca_alloc_ucontext(struct ib_device *ibdev,
- struct ib_udata *udata)
+static int mthca_alloc_ucontext(struct ib_ucontext *uctx,
+ struct ib_udata *udata)
{
- struct mthca_alloc_ucontext_resp uresp;
- struct mthca_ucontext *context;
+ struct ib_device *ibdev = uctx->device;
+ struct mthca_alloc_ucontext_resp uresp = {};
+ struct mthca_ucontext *context = to_mucontext(uctx);
int err;
if (!(to_mdev(ibdev)->active))
- return ERR_PTR(-EAGAIN);
-
- memset(&uresp, 0, sizeof uresp);
+ return -EAGAIN;
uresp.qp_tab_size = to_mdev(ibdev)->limits.num_qps;
if (mthca_is_memfree(to_mdev(ibdev)))
@@ -318,44 +318,33 @@ static struct ib_ucontext *mthca_alloc_ucontext(struct ib_device *ibdev,
else
uresp.uarc_size = 0;
- context = kmalloc(sizeof *context, GFP_KERNEL);
- if (!context)
- return ERR_PTR(-ENOMEM);
-
err = mthca_uar_alloc(to_mdev(ibdev), &context->uar);
- if (err) {
- kfree(context);
- return ERR_PTR(err);
- }
+ if (err)
+ return err;
context->db_tab = mthca_init_user_db_tab(to_mdev(ibdev));
if (IS_ERR(context->db_tab)) {
err = PTR_ERR(context->db_tab);
mthca_uar_free(to_mdev(ibdev), &context->uar);
- kfree(context);
- return ERR_PTR(err);
+ return err;
}
- if (ib_copy_to_udata(udata, &uresp, sizeof uresp)) {
+ if (ib_copy_to_udata(udata, &uresp, sizeof(uresp))) {
mthca_cleanup_user_db_tab(to_mdev(ibdev), &context->uar, context->db_tab);
mthca_uar_free(to_mdev(ibdev), &context->uar);
- kfree(context);
- return ERR_PTR(-EFAULT);
+ return -EFAULT;
}
context->reg_mr_warned = 0;
- return &context->ibucontext;
+ return 0;
}
-static int mthca_dealloc_ucontext(struct ib_ucontext *context)
+static void mthca_dealloc_ucontext(struct ib_ucontext *context)
{
mthca_cleanup_user_db_tab(to_mdev(context->device), &to_mucontext(context)->uar,
to_mucontext(context)->db_tab);
mthca_uar_free(to_mdev(context->device), &to_mucontext(context)->uar);
- kfree(to_mucontext(context));
-
- return 0;
}
static int mthca_mmap_uar(struct ib_ucontext *context,
@@ -374,40 +363,30 @@ static int mthca_mmap_uar(struct ib_ucontext *context,
return 0;
}
-static struct ib_pd *mthca_alloc_pd(struct ib_device *ibdev,
- struct ib_ucontext *context,
- struct ib_udata *udata)
+static int mthca_alloc_pd(struct ib_pd *ibpd, struct ib_ucontext *context,
+ struct ib_udata *udata)
{
- struct mthca_pd *pd;
+ struct ib_device *ibdev = ibpd->device;
+ struct mthca_pd *pd = to_mpd(ibpd);
int err;
- pd = kmalloc(sizeof *pd, GFP_KERNEL);
- if (!pd)
- return ERR_PTR(-ENOMEM);
-
err = mthca_pd_alloc(to_mdev(ibdev), !context, pd);
- if (err) {
- kfree(pd);
- return ERR_PTR(err);
- }
+ if (err)
+ return err;
if (context) {
if (ib_copy_to_udata(udata, &pd->pd_num, sizeof (__u32))) {
mthca_pd_free(to_mdev(ibdev), pd);
- kfree(pd);
- return ERR_PTR(-EFAULT);
+ return -EFAULT;
}
}
- return &pd->ibpd;
+ return 0;
}
-static int mthca_dealloc_pd(struct ib_pd *pd)
+static void mthca_dealloc_pd(struct ib_pd *pd)
{
mthca_pd_free(to_mdev(pd->device), to_mpd(pd));
- kfree(pd);
-
- return 0;
}
static struct ib_ah *mthca_ah_create(struct ib_pd *pd,
@@ -445,7 +424,8 @@ static struct ib_srq *mthca_create_srq(struct ib_pd *pd,
struct ib_udata *udata)
{
struct mthca_create_srq ucmd;
- struct mthca_ucontext *context = NULL;
+ struct mthca_ucontext *context = rdma_udata_to_drv_context(
+ udata, struct mthca_ucontext, ibucontext);
struct mthca_srq *srq;
int err;
@@ -457,8 +437,6 @@ static struct ib_srq *mthca_create_srq(struct ib_pd *pd,
return ERR_PTR(-ENOMEM);
if (udata) {
- context = to_mucontext(pd->uobject->context);
-
if (ib_copy_from_udata(&ucmd, udata, sizeof ucmd)) {
err = -EFAULT;
goto err_free;
@@ -520,6 +498,8 @@ static struct ib_qp *mthca_create_qp(struct ib_pd *pd,
struct ib_qp_init_attr *init_attr,
struct ib_udata *udata)
{
+ struct mthca_ucontext *context = rdma_udata_to_drv_context(
+ udata, struct mthca_ucontext, ibucontext);
struct mthca_create_qp ucmd;
struct mthca_qp *qp;
int err;
@@ -532,15 +512,11 @@ static struct ib_qp *mthca_create_qp(struct ib_pd *pd,
case IB_QPT_UC:
case IB_QPT_UD:
{
- struct mthca_ucontext *context;
-
qp = kzalloc(sizeof(*qp), GFP_KERNEL);
if (!qp)
return ERR_PTR(-ENOMEM);
if (udata) {
- context = to_mucontext(pd->uobject->context);
-
if (ib_copy_from_udata(&ucmd, udata, sizeof ucmd)) {
kfree(qp);
return ERR_PTR(-EFAULT);
@@ -578,8 +554,6 @@ static struct ib_qp *mthca_create_qp(struct ib_pd *pd,
&init_attr->cap, qp, udata);
if (err && udata) {
- context = to_mucontext(pd->uobject->context);
-
mthca_unmap_user_db(to_mdev(pd->device),
&context->uar,
context->db_tab,
@@ -684,7 +658,7 @@ static struct ib_cq *mthca_create_cq(struct ib_device *ibdev,
goto err_unmap_set;
}
- cq = kmalloc(sizeof *cq, GFP_KERNEL);
+ cq = kzalloc(sizeof(*cq), GFP_KERNEL);
if (!cq) {
err = -ENOMEM;
goto err_unmap_arm;
@@ -907,22 +881,23 @@ static struct ib_mr *mthca_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
u64 virt, int acc, struct ib_udata *udata)
{
struct mthca_dev *dev = to_mdev(pd->device);
- struct scatterlist *sg;
+ struct sg_dma_page_iter sg_iter;
+ struct mthca_ucontext *context = rdma_udata_to_drv_context(
+ udata, struct mthca_ucontext, ibucontext);
struct mthca_mr *mr;
struct mthca_reg_mr ucmd;
u64 *pages;
- int shift, n, len;
- int i, k, entry;
+ int n, i;
int err = 0;
int write_mtt_size;
if (udata->inlen < sizeof ucmd) {
- if (!to_mucontext(pd->uobject->context)->reg_mr_warned) {
+ if (!context->reg_mr_warned) {
mthca_warn(dev, "Process '%s' did not pass in MR attrs.\n",
current->comm);
mthca_warn(dev, " Update libmthca to fix this.\n");
}
- ++to_mucontext(pd->uobject->context)->reg_mr_warned;
+ ++context->reg_mr_warned;
ucmd.mr_attrs = 0;
} else if (ib_copy_from_udata(&ucmd, udata, sizeof ucmd))
return ERR_PTR(-EFAULT);
@@ -931,7 +906,7 @@ static struct ib_mr *mthca_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
if (!mr)
return ERR_PTR(-ENOMEM);
- mr->umem = ib_umem_get(pd->uobject->context, start, length, acc,
+ mr->umem = ib_umem_get(udata, start, length, acc,
ucmd.mr_attrs & MTHCA_MR_DMASYNC);
if (IS_ERR(mr->umem)) {
@@ -939,7 +914,6 @@ static struct ib_mr *mthca_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
goto err;
}
- shift = mr->umem->page_shift;
n = mr->umem->nmap;
mr->mtt = mthca_alloc_mtt(dev, n);
@@ -958,21 +932,19 @@ static struct ib_mr *mthca_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
write_mtt_size = min(mthca_write_mtt_size(dev), (int) (PAGE_SIZE / sizeof *pages));
- for_each_sg(mr->umem->sg_head.sgl, sg, mr->umem->nmap, entry) {
- len = sg_dma_len(sg) >> shift;
- for (k = 0; k < len; ++k) {
- pages[i++] = sg_dma_address(sg) + (k << shift);
- /*
- * Be friendly to write_mtt and pass it chunks
- * of appropriate size.
- */
- if (i == write_mtt_size) {
- err = mthca_write_mtt(dev, mr->mtt, n, pages, i);
- if (err)
- goto mtt_done;
- n += i;
- i = 0;
- }
+ for_each_sg_dma_page(mr->umem->sg_head.sgl, &sg_iter, mr->umem->nmap, 0) {
+ pages[i++] = sg_page_iter_dma_address(&sg_iter);
+
+ /*
+ * Be friendly to write_mtt and pass it chunks
+ * of appropriate size.
+ */
+ if (i == write_mtt_size) {
+ err = mthca_write_mtt(dev, mr->mtt, n, pages, i);
+ if (err)
+ goto mtt_done;
+ n += i;
+ i = 0;
}
}
@@ -983,7 +955,7 @@ mtt_done:
if (err)
goto err_mtt;
- err = mthca_mr_alloc(dev, to_mpd(pd)->pd_num, shift, virt, length,
+ err = mthca_mr_alloc(dev, to_mpd(pd)->pd_num, PAGE_SHIFT, virt, length,
convert_access(acc), mr);
if (err)
@@ -1081,7 +1053,8 @@ static ssize_t hw_rev_show(struct device *device,
struct device_attribute *attr, char *buf)
{
struct mthca_dev *dev =
- container_of(device, struct mthca_dev, ib_dev.dev);
+ rdma_device_to_drv_device(device, struct mthca_dev, ib_dev);
+
return sprintf(buf, "%x\n", dev->rev_id);
}
static DEVICE_ATTR_RO(hw_rev);
@@ -1090,7 +1063,8 @@ static ssize_t hca_type_show(struct device *device,
struct device_attribute *attr, char *buf)
{
struct mthca_dev *dev =
- container_of(device, struct mthca_dev, ib_dev.dev);
+ rdma_device_to_drv_device(device, struct mthca_dev, ib_dev);
+
switch (dev->pdev->device) {
case PCI_DEVICE_ID_MELLANOX_TAVOR:
return sprintf(buf, "MT23108\n");
@@ -1111,7 +1085,8 @@ static ssize_t board_id_show(struct device *device,
struct device_attribute *attr, char *buf)
{
struct mthca_dev *dev =
- container_of(device, struct mthca_dev, ib_dev.dev);
+ rdma_device_to_drv_device(device, struct mthca_dev, ib_dev);
+
return sprintf(buf, "%.*s\n", MTHCA_BOARD_ID_LEN, dev->board_id);
}
static DEVICE_ATTR_RO(board_id);
@@ -1225,6 +1200,8 @@ static const struct ib_device_ops mthca_dev_ops = {
.query_qp = mthca_query_qp,
.reg_user_mr = mthca_reg_user_mr,
.resize_cq = mthca_resize_cq,
+ INIT_RDMA_OBJ_SIZE(ib_pd, mthca_pd, ibpd),
+ INIT_RDMA_OBJ_SIZE(ib_ucontext, mthca_ucontext, ibucontext),
};
static const struct ib_device_ops mthca_dev_arbel_srq_ops = {
@@ -1338,7 +1315,7 @@ int mthca_register_device(struct mthca_dev *dev)
rdma_set_device_sysfs_group(&dev->ib_dev, &mthca_attr_group);
dev->ib_dev.driver_id = RDMA_DRIVER_MTHCA;
- ret = ib_register_device(&dev->ib_dev, "mthca%d", NULL);
+ ret = ib_register_device(&dev->ib_dev, "mthca%d");
if (ret)
return ret;
diff --git a/drivers/infiniband/hw/mthca/mthca_qp.c b/drivers/infiniband/hw/mthca/mthca_qp.c
index 4e5b5cc17f1d..7a5b25d13faa 100644
--- a/drivers/infiniband/hw/mthca/mthca_qp.c
+++ b/drivers/infiniband/hw/mthca/mthca_qp.c
@@ -42,6 +42,7 @@
#include <rdma/ib_verbs.h>
#include <rdma/ib_cache.h>
#include <rdma/ib_pack.h>
+#include <rdma/uverbs_ioctl.h>
#include "mthca_dev.h"
#include "mthca_cmd.h"
@@ -554,10 +555,14 @@ static int mthca_path_set(struct mthca_dev *dev, const struct rdma_ah_attr *ah,
static int __mthca_modify_qp(struct ib_qp *ibqp,
const struct ib_qp_attr *attr, int attr_mask,
- enum ib_qp_state cur_state, enum ib_qp_state new_state)
+ enum ib_qp_state cur_state,
+ enum ib_qp_state new_state,
+ struct ib_udata *udata)
{
struct mthca_dev *dev = to_mdev(ibqp->device);
struct mthca_qp *qp = to_mqp(ibqp);
+ struct mthca_ucontext *context = rdma_udata_to_drv_context(
+ udata, struct mthca_ucontext, ibucontext);
struct mthca_mailbox *mailbox;
struct mthca_qp_param *qp_param;
struct mthca_qp_context *qp_context;
@@ -619,8 +624,7 @@ static int __mthca_modify_qp(struct ib_qp *ibqp,
/* leave arbel_sched_queue as 0 */
if (qp->ibqp.uobject)
- qp_context->usr_page =
- cpu_to_be32(to_mucontext(qp->ibqp.uobject->context)->uar.index);
+ qp_context->usr_page = cpu_to_be32(context->uar.index);
else
qp_context->usr_page = cpu_to_be32(dev->driver_uar.index);
qp_context->local_qpn = cpu_to_be32(qp->qpn);
@@ -913,7 +917,8 @@ int mthca_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, int attr_mask,
goto out;
}
- err = __mthca_modify_qp(ibqp, attr, attr_mask, cur_state, new_state);
+ err = __mthca_modify_qp(ibqp, attr, attr_mask, cur_state, new_state,
+ udata);
out:
mutex_unlock(&qp->mutex);
diff --git a/drivers/infiniband/hw/mthca/mthca_srq.c b/drivers/infiniband/hw/mthca/mthca_srq.c
index b8333c79e3fa..06b920385512 100644
--- a/drivers/infiniband/hw/mthca/mthca_srq.c
+++ b/drivers/infiniband/hw/mthca/mthca_srq.c
@@ -36,6 +36,8 @@
#include <asm/io.h>
+#include <rdma/uverbs_ioctl.h>
+
#include "mthca_dev.h"
#include "mthca_cmd.h"
#include "mthca_memfree.h"
@@ -96,17 +98,19 @@ static void mthca_tavor_init_srq_context(struct mthca_dev *dev,
struct mthca_pd *pd,
struct mthca_srq *srq,
struct mthca_tavor_srq_context *context,
- bool is_user)
+ struct ib_udata *udata)
{
+ struct mthca_ucontext *ucontext = rdma_udata_to_drv_context(
+ udata, struct mthca_ucontext, ibucontext);
+
memset(context, 0, sizeof *context);
context->wqe_base_ds = cpu_to_be64(1 << (srq->wqe_shift - 4));
context->state_pd = cpu_to_be32(pd->pd_num);
context->lkey = cpu_to_be32(srq->mr.ibmr.lkey);
- if (is_user)
- context->uar =
- cpu_to_be32(to_mucontext(pd->ibpd.uobject->context)->uar.index);
+ if (udata)
+ context->uar = cpu_to_be32(ucontext->uar.index);
else
context->uar = cpu_to_be32(dev->driver_uar.index);
}
@@ -115,8 +119,10 @@ static void mthca_arbel_init_srq_context(struct mthca_dev *dev,
struct mthca_pd *pd,
struct mthca_srq *srq,
struct mthca_arbel_srq_context *context,
- bool is_user)
+ struct ib_udata *udata)
{
+ struct mthca_ucontext *ucontext = rdma_udata_to_drv_context(
+ udata, struct mthca_ucontext, ibucontext);
int logsize, max;
memset(context, 0, sizeof *context);
@@ -131,9 +137,8 @@ static void mthca_arbel_init_srq_context(struct mthca_dev *dev,
context->lkey = cpu_to_be32(srq->mr.ibmr.lkey);
context->db_index = cpu_to_be32(srq->db_index);
context->logstride_usrpage = cpu_to_be32((srq->wqe_shift - 4) << 29);
- if (is_user)
- context->logstride_usrpage |=
- cpu_to_be32(to_mucontext(pd->ibpd.uobject->context)->uar.index);
+ if (udata)
+ context->logstride_usrpage |= cpu_to_be32(ucontext->uar.index);
else
context->logstride_usrpage |= cpu_to_be32(dev->driver_uar.index);
context->eq_pd = cpu_to_be32(MTHCA_EQ_ASYNC << 24 | pd->pd_num);
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