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Message-Id: <1692719255-20183-3-git-send-email-sharmaajay@linuxonhyperv.com>
Date: Tue, 22 Aug 2023 08:47:33 -0700
From: sharmaajay@...uxonhyperv.com
To: Long Li <longli@...rosoft.com>,
Jason Gunthorpe <jgg@...pe.ca>,
Leon Romanovsky <leon@...nel.org>,
Dexuan Cui <decui@...rosoft.com>,
Wei Liu <wei.liu@...nel.org>,
"David S. Miller" <davem@...emloft.net>,
Eric Dumazet <edumazet@...gle.com>,
Jakub Kicinski <kuba@...nel.org>,
Paolo Abeni <pabeni@...hat.com>
Cc: linux-rdma@...r.kernel.org,
linux-hyperv@...r.kernel.org,
netdev@...r.kernel.org,
linux-kernel@...r.kernel.org,
Ajay Sharma <sharmaajay@...rosoft.com>
Subject: [Patch v4 2/4] RDMA/mana_ib : Register Mana IB device with Management SW
From: Ajay Sharma <sharmaajay@...rosoft.com>
Each of the MANA infiniband devices must be registered
with the management software to request services/resources.
Register the Mana IB device with Management
which would later help get an adapter handle.
Signed-off-by: Ajay Sharma <sharmaajay@...rosoft.com>
---
drivers/infiniband/hw/mana/device.c | 20 +++++--
drivers/infiniband/hw/mana/main.c | 58 ++++++-------------
drivers/infiniband/hw/mana/mana_ib.h | 1 +
drivers/infiniband/hw/mana/mr.c | 17 ++----
drivers/infiniband/hw/mana/qp.c | 8 +--
.../net/ethernet/microsoft/mana/gdma_main.c | 5 ++
include/net/mana/gdma.h | 3 +
7 files changed, 54 insertions(+), 58 deletions(-)
diff --git a/drivers/infiniband/hw/mana/device.c b/drivers/infiniband/hw/mana/device.c
index 083f27246ba8..ea4c8c8fc10d 100644
--- a/drivers/infiniband/hw/mana/device.c
+++ b/drivers/infiniband/hw/mana/device.c
@@ -78,22 +78,34 @@ static int mana_ib_probe(struct auxiliary_device *adev,
mib_dev->ib_dev.num_comp_vectors = 1;
mib_dev->ib_dev.dev.parent = mdev->gdma_context->dev;
- ret = ib_register_device(&mib_dev->ib_dev, "mana_%d",
- mdev->gdma_context->dev);
+ ret = mana_gd_register_device(&mib_dev->gc->mana_ib);
if (ret) {
- ib_dealloc_device(&mib_dev->ib_dev);
- return ret;
+ ibdev_err(&mib_dev->ib_dev, "Failed to register device, ret %d",
+ ret);
+ goto free_ib_device;
}
+ ret = ib_register_device(&mib_dev->ib_dev, "mana_%d",
+ mdev->gdma_context->dev);
+ if (ret)
+ goto deregister_device;
+
dev_set_drvdata(&adev->dev, mib_dev);
return 0;
+
+deregister_device:
+ mana_gd_deregister_device(&mib_dev->gc->mana_ib);
+free_ib_device:
+ ib_dealloc_device(&mib_dev->ib_dev);
+ return ret;
}
static void mana_ib_remove(struct auxiliary_device *adev)
{
struct mana_ib_dev *mib_dev = dev_get_drvdata(&adev->dev);
+ mana_gd_deregister_device(&mib_dev->gc->mana_ib);
ib_unregister_device(&mib_dev->ib_dev);
ib_dealloc_device(&mib_dev->ib_dev);
}
diff --git a/drivers/infiniband/hw/mana/main.c b/drivers/infiniband/hw/mana/main.c
index 189e774cdab6..2c4e3c496644 100644
--- a/drivers/infiniband/hw/mana/main.c
+++ b/drivers/infiniband/hw/mana/main.c
@@ -8,7 +8,7 @@
void mana_ib_uncfg_vport(struct mana_ib_dev *mib_dev, struct mana_ib_pd *pd,
u32 port)
{
- struct gdma_dev *gd = mib_dev->gdma_dev;
+ struct gdma_dev *gd = &mib_dev->gc->mana;
struct mana_port_context *mpc;
struct net_device *ndev;
struct mana_context *mc;
@@ -32,7 +32,7 @@ int mana_ib_cfg_vport(struct mana_ib_dev *mib_dev, u32 port,
struct mana_ib_pd *pd,
u32 doorbell_id)
{
- struct gdma_dev *mdev = mib_dev->gdma_dev;
+ struct gdma_dev *mdev = &mib_dev->gc->mana;
struct mana_port_context *mpc;
struct mana_context *mc;
struct net_device *ndev;
@@ -81,17 +81,16 @@ 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 *mib_dev;
- struct gdma_dev *mdev;
+
int err;
mib_dev = container_of(ibdev, struct mana_ib_dev, ib_dev);
- mdev = mib_dev->gdma_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(mib_dev->gc, sizeof(req), &req,
sizeof(resp), &resp);
if (err || resp.hdr.status) {
@@ -121,17 +120,15 @@ 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 *mib_dev;
- struct gdma_dev *mdev;
int err;
mib_dev = container_of(ibdev, struct mana_ib_dev, ib_dev);
- mdev = mib_dev->gdma_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(mib_dev->gc, sizeof(req), &req,
sizeof(resp), &resp);
if (err || resp.hdr.status) {
@@ -207,17 +204,13 @@ int mana_ib_alloc_ucontext(struct ib_ucontext *ibcontext,
container_of(ibcontext, struct mana_ib_ucontext, ibucontext);
struct ib_device *ibdev = ibcontext->device;
struct mana_ib_dev *mib_dev;
- struct gdma_context *gc;
- struct gdma_dev *dev;
int doorbell_page;
int ret;
mib_dev = container_of(ibdev, struct mana_ib_dev, ib_dev);
- dev = mib_dev->gdma_dev;
- gc = dev->gdma_context;
/* Allocate a doorbell page index */
- ret = mana_gd_allocate_doorbell_page(gc, &doorbell_page);
+ ret = mana_gd_allocate_doorbell_page(mib_dev->gc, &doorbell_page);
if (ret) {
ibdev_dbg(ibdev, "Failed to allocate doorbell page %d\n", ret);
return ret;
@@ -236,20 +229,17 @@ void mana_ib_dealloc_ucontext(struct ib_ucontext *ibcontext)
container_of(ibcontext, struct mana_ib_ucontext, ibucontext);
struct ib_device *ibdev = ibcontext->device;
struct mana_ib_dev *mib_dev;
- struct gdma_context *gc;
int ret;
mib_dev = container_of(ibdev, struct mana_ib_dev, ib_dev);
- gc = mib_dev->gdma_dev->gdma_context;
- ret = mana_gd_destroy_doorbell_page(gc, mana_ucontext->doorbell);
+ ret = mana_gd_destroy_doorbell_page(mib_dev->gc, mana_ucontext->doorbell);
if (ret)
ibdev_dbg(ibdev, "Failed to destroy doorbell page %d\n", ret);
}
static int
mana_ib_gd_first_dma_region(struct mana_ib_dev *mib_dev,
- struct gdma_context *gc,
struct gdma_create_dma_region_req *create_req,
size_t num_pages, mana_handle_t *gdma_region,
u32 expected_status)
@@ -262,7 +252,7 @@ mana_ib_gd_first_dma_region(struct mana_ib_dev *mib_dev,
struct_size(create_req, page_addr_list, num_pages);
create_req->page_addr_list_len = num_pages;
- err = mana_gd_send_request(gc, create_req_msg_size, create_req,
+ err = mana_gd_send_request(mib_dev->gc, create_req_msg_size, create_req,
sizeof(create_resp), &create_resp);
if (err || create_resp.hdr.status != expected_status) {
ibdev_dbg(&mib_dev->ib_dev,
@@ -282,7 +272,7 @@ mana_ib_gd_first_dma_region(struct mana_ib_dev *mib_dev,
}
static int
-mana_ib_gd_add_dma_region(struct mana_ib_dev *mib_dev, struct gdma_context *gc,
+mana_ib_gd_add_dma_region(struct mana_ib_dev *mib_dev,
struct gdma_dma_region_add_pages_req *add_req,
unsigned int num_pages, u32 expected_status)
{
@@ -295,7 +285,7 @@ mana_ib_gd_add_dma_region(struct mana_ib_dev *mib_dev, struct gdma_context *gc,
add_req_msg_size, sizeof(add_resp));
add_req->page_addr_list_len = num_pages;
- err = mana_gd_send_request(gc, add_req_msg_size, add_req,
+ err = mana_gd_send_request(mib_dev->gc, add_req_msg_size, add_req,
sizeof(add_resp), &add_resp);
if (err || add_resp.hdr.status != expected_status) {
ibdev_dbg(&mib_dev->ib_dev,
@@ -323,18 +313,14 @@ int mana_ib_gd_create_dma_region(struct mana_ib_dev *mib_dev,
struct ib_block_iter biter;
size_t max_pgs_add_cmd = 0;
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 = mib_dev->gdma_dev;
- gc = mdev->gdma_context;
- hwc = gc->hwc.driver_data;
+ hwc = mib_dev->gc->hwc.driver_data;
/* Hardware requires dma region to align to chosen page size */
page_sz = ib_umem_find_best_pgsz(umem, PAGE_SZ_BM, 0);
@@ -388,7 +374,7 @@ int mana_ib_gd_create_dma_region(struct mana_ib_dev *mib_dev,
if (!num_pages_processed) {
/* First create message */
- err = mana_ib_gd_first_dma_region(mib_dev, gc, create_req,
+ err = mana_ib_gd_first_dma_region(mib_dev, create_req,
tail, gdma_region,
expected_status);
if (err)
@@ -403,7 +389,7 @@ int mana_ib_gd_create_dma_region(struct mana_ib_dev *mib_dev,
page_addr_list = add_req->page_addr_list;
} else {
/* Subsequent create messages */
- err = mana_ib_gd_add_dma_region(mib_dev, gc, add_req, tail,
+ err = mana_ib_gd_add_dma_region(mib_dev, add_req, tail,
expected_status);
if (err)
break;
@@ -429,13 +415,9 @@ int mana_ib_gd_create_dma_region(struct mana_ib_dev *mib_dev,
int mana_ib_gd_destroy_dma_region(struct mana_ib_dev *mib_dev, u64 gdma_region)
{
- struct gdma_dev *mdev = mib_dev->gdma_dev;
- struct gdma_context *gc;
-
- gc = mdev->gdma_context;
ibdev_dbg(&mib_dev->ib_dev, "destroy dma region 0x%llx\n", gdma_region);
- return mana_gd_destroy_dma_region(gc, gdma_region);
+ return mana_gd_destroy_dma_region(mib_dev->gc, gdma_region);
}
int mana_ib_mmap(struct ib_ucontext *ibcontext, struct vm_area_struct *vma)
@@ -444,13 +426,11 @@ int mana_ib_mmap(struct ib_ucontext *ibcontext, struct vm_area_struct *vma)
container_of(ibcontext, struct mana_ib_ucontext, ibucontext);
struct ib_device *ibdev = ibcontext->device;
struct mana_ib_dev *mib_dev;
- struct gdma_context *gc;
phys_addr_t pfn;
pgprot_t prot;
int ret;
mib_dev = container_of(ibdev, struct mana_ib_dev, ib_dev);
- gc = mib_dev->gdma_dev->gdma_context;
if (vma->vm_pgoff != 0) {
ibdev_dbg(ibdev, "Unexpected vm_pgoff %lu\n", vma->vm_pgoff);
@@ -458,18 +438,18 @@ int mana_ib_mmap(struct ib_ucontext *ibcontext, struct vm_area_struct *vma)
}
/* Map to the page indexed by ucontext->doorbell */
- pfn = (gc->phys_db_page_base +
- gc->db_page_size * mana_ucontext->doorbell) >>
+ pfn = (mib_dev->gc->phys_db_page_base +
+ mib_dev->gc->db_page_size * mana_ucontext->doorbell) >>
PAGE_SHIFT;
prot = pgprot_writecombine(vma->vm_page_prot);
- ret = rdma_user_mmap_io(ibcontext, vma, pfn, gc->db_page_size, prot,
- NULL);
+ ret = rdma_user_mmap_io(ibcontext, vma, pfn, mib_dev->gc->db_page_size,
+ prot, NULL);
if (ret)
ibdev_dbg(ibdev, "can't rdma_user_mmap_io ret %d\n", ret);
else
ibdev_dbg(ibdev, "mapped I/O pfn 0x%llx page_size %u, ret %d\n",
- pfn, gc->db_page_size, ret);
+ pfn, mib_dev->gc->db_page_size, ret);
return ret;
}
diff --git a/drivers/infiniband/hw/mana/mana_ib.h b/drivers/infiniband/hw/mana/mana_ib.h
index ee4efd0af278..3a2ba6b96f15 100644
--- a/drivers/infiniband/hw/mana/mana_ib.h
+++ b/drivers/infiniband/hw/mana/mana_ib.h
@@ -30,6 +30,7 @@
struct mana_ib_dev {
struct ib_device ib_dev;
struct gdma_dev *gdma_dev;
+ struct gdma_context *gc;
};
struct mana_ib_wq {
diff --git a/drivers/infiniband/hw/mana/mr.c b/drivers/infiniband/hw/mana/mr.c
index f6a53906204d..3106d1bce837 100644
--- a/drivers/infiniband/hw/mana/mr.c
+++ b/drivers/infiniband/hw/mana/mr.c
@@ -29,13 +29,10 @@ static int mana_ib_gd_create_mr(struct mana_ib_dev *mib_dev,
struct mana_ib_mr *mr,
struct gdma_create_mr_params *mr_params)
{
- struct gdma_dev *mdev = mib_dev->gdma_dev;
struct gdma_create_mr_response resp = {};
struct gdma_create_mr_request req = {};
- struct gdma_context *gc;
int err;
- gc = mdev->gdma_context;
mana_gd_init_req_hdr(&req.hdr, GDMA_CREATE_MR, sizeof(req),
sizeof(resp));
@@ -56,7 +53,8 @@ static int mana_ib_gd_create_mr(struct mana_ib_dev *mib_dev,
return -EINVAL;
}
- err = mana_gd_send_request(gc, sizeof(req), &req, sizeof(resp), &resp);
+ err = mana_gd_send_request(mib_dev->gc, sizeof(req), &req,
+ sizeof(resp), &resp);
if (err || resp.hdr.status) {
ibdev_dbg(&mib_dev->ib_dev, "Failed to create mr %d, %u", err,
@@ -77,22 +75,19 @@ static int mana_ib_gd_create_mr(struct mana_ib_dev *mib_dev,
static int mana_ib_gd_destroy_mr(struct mana_ib_dev *mib_dev, u64 mr_handle)
{
struct gdma_destroy_mr_response resp = {};
- struct gdma_dev *mdev = mib_dev->gdma_dev;
struct gdma_destroy_mr_request req = {};
- struct gdma_context *gc;
int err;
- gc = mdev->gdma_context;
-
mana_gd_init_req_hdr(&req.hdr, GDMA_DESTROY_MR, sizeof(req),
sizeof(resp));
req.mr_handle = mr_handle;
- err = mana_gd_send_request(gc, sizeof(req), &req, sizeof(resp), &resp);
+ err = mana_gd_send_request(mib_dev->gc, sizeof(req), &req,
+ sizeof(resp), &resp);
if (err || resp.hdr.status) {
- dev_err(gc->dev, "Failed to destroy MR: %d, 0x%x\n", err,
- resp.hdr.status);
+ dev_err(mib_dev->gc->dev, "Failed to destroy MR: %d, 0x%x\n",
+ err, resp.hdr.status);
if (!err)
err = -EPROTO;
return err;
diff --git a/drivers/infiniband/hw/mana/qp.c b/drivers/infiniband/hw/mana/qp.c
index 3540bf5bb497..ef3275ac92a0 100644
--- a/drivers/infiniband/hw/mana/qp.c
+++ b/drivers/infiniband/hw/mana/qp.c
@@ -21,7 +21,7 @@ static int mana_ib_cfg_vport_steering(struct mana_ib_dev *mib_dev,
u32 req_buf_size;
int i, err;
- mdev = mib_dev->gdma_dev;
+ mdev = &mib_dev->gc->mana;
gc = mdev->gdma_context;
req_buf_size =
@@ -267,7 +267,7 @@ 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 mana_ib_create_qp_resp resp = {};
- struct gdma_dev *gd = mib_dev->gdma_dev;
+ struct gdma_dev *gd = &mib_dev->gc->mana;
struct mana_ib_create_qp ucmd = {};
struct mana_obj_spec wq_spec = {};
struct mana_obj_spec cq_spec = {};
@@ -437,7 +437,7 @@ static int mana_ib_destroy_qp_rss(struct mana_ib_qp *qp,
{
struct mana_ib_dev *mib_dev =
container_of(qp->ibqp.device, struct mana_ib_dev, ib_dev);
- struct gdma_dev *gd = mib_dev->gdma_dev;
+ struct gdma_dev *gd = &mib_dev->gc->mana;
struct mana_port_context *mpc;
struct mana_context *mc;
struct net_device *ndev;
@@ -464,7 +464,7 @@ static int mana_ib_destroy_qp_raw(struct mana_ib_qp *qp, struct ib_udata *udata)
{
struct mana_ib_dev *mib_dev =
container_of(qp->ibqp.device, struct mana_ib_dev, ib_dev);
- struct gdma_dev *gd = mib_dev->gdma_dev;
+ struct gdma_dev *gd = &mib_dev->gc->mana;
struct ib_pd *ibpd = qp->ibqp.pd;
struct mana_port_context *mpc;
struct mana_context *mc;
diff --git a/drivers/net/ethernet/microsoft/mana/gdma_main.c b/drivers/net/ethernet/microsoft/mana/gdma_main.c
index 8f3f78b68592..9fa7a2d6c2b2 100644
--- a/drivers/net/ethernet/microsoft/mana/gdma_main.c
+++ b/drivers/net/ethernet/microsoft/mana/gdma_main.c
@@ -139,6 +139,9 @@ static int mana_gd_detect_devices(struct pci_dev *pdev)
if (dev_type == GDMA_DEVICE_MANA) {
gc->mana.gdma_context = gc;
gc->mana.dev_id = dev;
+ } else if (dev_type == GDMA_DEVICE_MANA_IB) {
+ gc->mana_ib.dev_id = dev;
+ gc->mana_ib.gdma_context = gc;
}
}
@@ -940,6 +943,7 @@ int mana_gd_register_device(struct gdma_dev *gd)
return 0;
}
+EXPORT_SYMBOL(mana_gd_register_device);
int mana_gd_deregister_device(struct gdma_dev *gd)
{
@@ -970,6 +974,7 @@ int mana_gd_deregister_device(struct gdma_dev *gd)
return err;
}
+EXPORT_SYMBOL(mana_gd_deregister_device);
u32 mana_gd_wq_avail_space(struct gdma_queue *wq)
{
diff --git a/include/net/mana/gdma.h b/include/net/mana/gdma.h
index 96c120160f15..e2b212dd722b 100644
--- a/include/net/mana/gdma.h
+++ b/include/net/mana/gdma.h
@@ -63,6 +63,7 @@ enum {
GDMA_DEVICE_NONE = 0,
GDMA_DEVICE_HWC = 1,
GDMA_DEVICE_MANA = 2,
+ GDMA_DEVICE_MANA_IB = 3,
};
struct gdma_resource {
@@ -384,6 +385,8 @@ struct gdma_context {
/* Azure network adapter */
struct gdma_dev mana;
+ /* rdma device */
+ struct gdma_dev mana_ib;
};
#define MAX_NUM_GDMA_DEVICES 4
--
2.25.1
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