[PATCH 6.8 586/715] RDMA/mana_ib: Introduce mdev_to_gc helper function

Sasha Levin
2024-03-24T22:44:37Z

From: Konstantin Taranov <kotaranov@microsoft.com>

[ Upstream commit 71c8cbfcdc8f1dc651b976d4c12dc9b9fce675c1 ]

Use a helper function to access gdma_context from mana_ib_dev.
This patch removes code repetitions as well as removes the need
to explicitly use gdma_dev, which was error-prone.

Signed-off-by: Konstantin Taranov <kotaranov@microsoft.com>
Link: https://lore.kernel.org/r/1705965781-3235-2-git-send-email-kotaranov@linux.microsoft.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Stable-dep-of: 2d5c00815778 ("RDMA/mana_ib: Use virtual address in dma regions for MRs")
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/infiniband/hw/mana/cq.c | 4 ++--
drivers/infiniband/hw/mana/main.c | 30 +++++++++++-----------------
drivers/infiniband/hw/mana/mana_ib.h | 5 +++++
drivers/infiniband/hw/mana/mr.c | 13 +++---------
drivers/infiniband/hw/mana/qp.c | 12 +++++------
5 files changed, 27 insertions(+), 37 deletions(-)

diff --git a/drivers/infiniband/hw/mana/cq.c b/drivers/infiniband/hw/mana/cq.c
index 83ebd070535ab..3369e7b665f9f 100644
--- a/drivers/infiniband/hw/mana/cq.c
+++ b/drivers/infiniband/hw/mana/cq.c
@@ -16,7 +16,7 @@ int mana_ib_create_cq(struct ib_cq *ibcq, const struct ib_cq_init_attr *attr,
int err;

mdev = container_of(ibdev, struct mana_ib_dev, ib_dev);
- gc = mdev->gdma_dev->gdma_context;
+ gc = mdev_to_gc(mdev);

if (udata->inlen < sizeof(ucmd))
return -EINVAL;
@@ -81,7 +81,7 @@ int mana_ib_destroy_cq(struct ib_cq *ibcq, struct ib_udata *udata)
int err;

mdev = container_of(ibdev, struct mana_ib_dev, ib_dev);
- gc = mdev->gdma_dev->gdma_context;
+ gc = mdev_to_gc(mdev);

err = mana_ib_gd_destroy_dma_region(mdev, cq->gdma_region);
if (err) {
diff --git a/drivers/infiniband/hw/mana/main.c b/drivers/infiniband/hw/mana/main.c
index 7840c9e2631cc..233ee76402641 100644
--- a/drivers/infiniband/hw/mana/main.c
+++ b/drivers/infiniband/hw/mana/main.c
@@ -79,17 +79,17 @@ int mana_ib_alloc_pd(struct ib_pd *ibpd, struct ib_udata *udata)
struct gdma_create_pd_req req = {};
enum gdma_pd_flags flags = 0;
struct mana_ib_dev *dev;
- struct gdma_dev *mdev;
+ struct gdma_context *gc;
int err;

dev = container_of(ibdev, struct mana_ib_dev, ib_dev);
- mdev = dev->gdma_dev;
+ gc = mdev_to_gc(dev);

mana_gd_init_req_hdr(&req.hdr, GDMA_CREATE_PD, sizeof(req),
sizeof(resp));

req.flags = flags;
- err = mana_gd_send_request(mdev->gdma_context, sizeof(req), &req,
+ err = mana_gd_send_request(gc, sizeof(req), &req,
sizeof(resp), &resp);

if (err || resp.hdr.status) {
@@ -119,17 +119,17 @@ int mana_ib_dealloc_pd(struct ib_pd *ibpd, struct ib_udata *udata)
struct gdma_destory_pd_resp resp = {};
struct gdma_destroy_pd_req req = {};
struct mana_ib_dev *dev;
- struct gdma_dev *mdev;
+ struct gdma_context *gc;
int err;

dev = container_of(ibdev, struct mana_ib_dev, ib_dev);
- mdev = dev->gdma_dev;
+ gc = mdev_to_gc(dev);

mana_gd_init_req_hdr(&req.hdr, GDMA_DESTROY_PD, sizeof(req),
sizeof(resp));

req.pd_handle = pd->pd_handle;
- err = mana_gd_send_request(mdev->gdma_context, sizeof(req), &req,
+ err = mana_gd_send_request(gc, sizeof(req), &req,
sizeof(resp), &resp);

if (err || resp.hdr.status) {
@@ -206,13 +206,11 @@ int mana_ib_alloc_ucontext(struct ib_ucontext *ibcontext,
struct ib_device *ibdev = ibcontext->device;
struct mana_ib_dev *mdev;
struct gdma_context *gc;
- struct gdma_dev *dev;
int doorbell_page;
int ret;

mdev = container_of(ibdev, struct mana_ib_dev, ib_dev);
- dev = mdev->gdma_dev;
- gc = dev->gdma_context;
+ gc = mdev_to_gc(mdev);

/* Allocate a doorbell page index */
ret = mana_gd_allocate_doorbell_page(gc, &doorbell_page);
@@ -238,7 +236,7 @@ void mana_ib_dealloc_ucontext(struct ib_ucontext *ibcontext)
int ret;

mdev = container_of(ibdev, struct mana_ib_dev, ib_dev);
- gc = mdev->gdma_dev->gdma_context;
+ gc = mdev_to_gc(mdev);

ret = mana_gd_destroy_doorbell_page(gc, mana_ucontext->doorbell);
if (ret)
@@ -322,15 +320,13 @@ int mana_ib_gd_create_dma_region(struct mana_ib_dev *dev, struct ib_umem *umem,
size_t max_pgs_create_cmd;
struct gdma_context *gc;
size_t num_pages_total;
- struct gdma_dev *mdev;
unsigned long page_sz;
unsigned int tail = 0;
u64 *page_addr_list;
void *request_buf;
int err;

- mdev = dev->gdma_dev;
- gc = mdev->gdma_context;
+ gc = mdev_to_gc(dev);
hwc = gc->hwc.driver_data;

/* Hardware requires dma region to align to chosen page size */
@@ -426,10 +422,8 @@ int mana_ib_gd_create_dma_region(struct mana_ib_dev *dev, struct ib_umem *umem,

int mana_ib_gd_destroy_dma_region(struct mana_ib_dev *dev, u64 gdma_region)
{
- struct gdma_dev *mdev = dev->gdma_dev;
- struct gdma_context *gc;
+ struct gdma_context *gc = mdev_to_gc(dev);

- gc = mdev->gdma_context;
ibdev_dbg(&dev->ib_dev, "destroy dma region 0x%llx\n", gdma_region);

return mana_gd_destroy_dma_region(gc, gdma_region);
@@ -447,7 +441,7 @@ int mana_ib_mmap(struct ib_ucontext *ibcontext, struct vm_area_struct *vma)
int ret;

mdev = container_of(ibdev, struct mana_ib_dev, ib_dev);
- gc = mdev->gdma_dev->gdma_context;
+ gc = mdev_to_gc(mdev);

if (vma->vm_pgoff != 0) {
ibdev_dbg(ibdev, "Unexpected vm_pgoff %lu\n", vma->vm_pgoff);
@@ -531,7 +525,7 @@ int mana_ib_gd_query_adapter_caps(struct mana_ib_dev *dev)
req.hdr.resp.msg_version = GDMA_MESSAGE_V3;
req.hdr.dev_id = dev->gdma_dev->dev_id;

- err = mana_gd_send_request(dev->gdma_dev->gdma_context, sizeof(req),
+ err = mana_gd_send_request(mdev_to_gc(dev), sizeof(req),
&req, sizeof(resp), &resp);

if (err) {
diff --git a/drivers/infiniband/hw/mana/mana_ib.h b/drivers/infiniband/hw/mana/mana_ib.h
index 6bdc0f5498d5b..ebb6537620eea 100644
--- a/drivers/infiniband/hw/mana/mana_ib.h
+++ b/drivers/infiniband/hw/mana/mana_ib.h
@@ -142,6 +142,11 @@ struct mana_ib_query_adapter_caps_resp {
u32 max_inline_data_size;
}; /* HW Data */

+static inline struct gdma_context *mdev_to_gc(struct mana_ib_dev *mdev)
+{
+ return mdev->gdma_dev->gdma_context;
+}
+
int mana_ib_gd_create_dma_region(struct mana_ib_dev *dev, struct ib_umem *umem,
mana_handle_t *gdma_region);

diff --git a/drivers/infiniband/hw/mana/mr.c b/drivers/infiniband/hw/mana/mr.c
index 351207c60eb65..ee4d4f83467c8 100644
--- a/drivers/infiniband/hw/mana/mr.c
+++ b/drivers/infiniband/hw/mana/mr.c
@@ -30,12 +30,9 @@ static int mana_ib_gd_create_mr(struct mana_ib_dev *dev, struct mana_ib_mr *mr,
{
struct gdma_create_mr_response resp = {};
struct gdma_create_mr_request req = {};
- struct gdma_dev *mdev = dev->gdma_dev;
- struct gdma_context *gc;
+ struct gdma_context *gc = mdev_to_gc(dev);
int err;

- gc = mdev->gdma_context;
-
mana_gd_init_req_hdr(&req.hdr, GDMA_CREATE_MR, sizeof(req),
sizeof(resp));
req.pd_handle = mr_params->pd_handle;
@@ -77,12 +74,9 @@ static int mana_ib_gd_destroy_mr(struct mana_ib_dev *dev, u64 mr_handle)
{
struct gdma_destroy_mr_response resp = {};
struct gdma_destroy_mr_request req = {};
- struct gdma_dev *mdev = dev->gdma_dev;
- struct gdma_context *gc;
+ struct gdma_context *gc = mdev_to_gc(dev);
int err;

- gc = mdev->gdma_context;
-
mana_gd_init_req_hdr(&req.hdr, GDMA_DESTROY_MR, sizeof(req),
sizeof(resp));

@@ -164,8 +158,7 @@ struct ib_mr *mana_ib_reg_user_mr(struct ib_pd *ibpd, u64 start, u64 length,
return &mr->ibmr;

err_dma_region:
- mana_gd_destroy_dma_region(dev->gdma_dev->gdma_context,
- dma_region_handle);
+ mana_gd_destroy_dma_region(mdev_to_gc(dev), dma_region_handle);

err_umem:
ib_umem_release(mr->umem);
diff --git a/drivers/infiniband/hw/mana/qp.c b/drivers/infiniband/hw/mana/qp.c
index 21ac9fcadf3f2..0c8d6ecfbb2a3 100644
--- a/drivers/infiniband/hw/mana/qp.c
+++ b/drivers/infiniband/hw/mana/qp.c
@@ -17,12 +17,10 @@ static int mana_ib_cfg_vport_steering(struct mana_ib_dev *dev,
struct mana_cfg_rx_steer_resp resp = {};
mana_handle_t *req_indir_tab;
struct gdma_context *gc;
- struct gdma_dev *mdev;
u32 req_buf_size;
int i, err;

- gc = dev->gdma_dev->gdma_context;
- mdev = &gc->mana;
+ gc = mdev_to_gc(dev);

req_buf_size =
sizeof(*req) + sizeof(mana_handle_t) * MANA_INDIRECT_TABLE_SIZE;
@@ -39,7 +37,7 @@ static int mana_ib_cfg_vport_steering(struct mana_ib_dev *dev,
req->rx_enable = 1;
req->update_default_rxobj = 1;
req->default_rxobj = default_rxobj;
- req->hdr.dev_id = mdev->dev_id;
+ req->hdr.dev_id = gc->mana.dev_id;

/* If there are more than 1 entries in indirection table, enable RSS */
if (log_ind_tbl_size)
@@ -99,6 +97,7 @@ static int mana_ib_create_qp_rss(struct ib_qp *ibqp, struct ib_pd *pd,
struct mana_ib_qp *qp = container_of(ibqp, struct mana_ib_qp, ibqp);
struct mana_ib_dev *mdev =
container_of(pd->device, struct mana_ib_dev, ib_dev);
+ struct gdma_context *gc = mdev_to_gc(mdev);
struct ib_rwq_ind_table *ind_tbl = attr->rwq_ind_tbl;
struct mana_ib_create_qp_rss_resp resp = {};
struct mana_ib_create_qp_rss ucmd = {};
@@ -109,7 +108,6 @@ static int mana_ib_create_qp_rss(struct ib_qp *ibqp, struct ib_pd *pd,
unsigned int ind_tbl_size;
struct mana_context *mc;
struct net_device *ndev;
- struct gdma_context *gc;
struct mana_ib_cq *cq;
struct mana_ib_wq *wq;
struct gdma_dev *gd;
@@ -120,7 +118,6 @@ static int mana_ib_create_qp_rss(struct ib_qp *ibqp, struct ib_pd *pd,
u32 port;
int ret;

- gc = mdev->gdma_dev->gdma_context;
gd = &gc->mana;
mc = gd->driver_data;

@@ -307,6 +304,7 @@ static int mana_ib_create_qp_raw(struct ib_qp *ibqp, struct ib_pd *ibpd,
rdma_udata_to_drv_context(udata, struct mana_ib_ucontext,
ibucontext);
struct gdma_dev *gd = &mdev->gdma_dev->gdma_context->mana;
+ struct gdma_context *gc = mdev_to_gc(mdev);
struct mana_ib_create_qp_resp resp = {};
struct mana_ib_create_qp ucmd = {};
struct gdma_queue *gdma_cq = NULL;
@@ -450,7 +448,7 @@ static int mana_ib_create_qp_raw(struct ib_qp *ibqp, struct ib_pd *ibpd,

err_release_gdma_cq:
kfree(gdma_cq);
- gd->gdma_context->cq_table[send_cq->id] = NULL;
+ gc->cq_table[send_cq->id] = NULL;

err_destroy_wq_obj:
mana_destroy_wq_obj(mpc, GDMA_SQ, qp->tx_object);
--
2.43.0