#include "mana_ib.h"
#include "linux/pci.h"
void mana_ib_uncfg_vport(struct mana_ib_dev *dev, struct mana_ib_pd *pd,
u32 port)
{
struct mana_port_context *mpc;
struct net_device *ndev;
ndev = mana_ib_get_netdev(&dev->ib_dev, port);
mpc = netdev_priv(ndev);
mutex_lock(&pd->vport_mutex);
pd->vport_use_count--;
WARN_ON(pd->vport_use_count < 0);
if (!pd->vport_use_count)
mana_uncfg_vport(mpc);
mutex_unlock(&pd->vport_mutex);
}
int mana_ib_cfg_vport(struct mana_ib_dev *dev, u32 port, struct mana_ib_pd *pd,
u32 doorbell_id)
{
struct mana_port_context *mpc;
struct net_device *ndev;
int err;
ndev = mana_ib_get_netdev(&dev->ib_dev, port);
mpc = netdev_priv(ndev);
mutex_lock(&pd->vport_mutex);
pd->vport_use_count++;
if (pd->vport_use_count > 1) {
ibdev_dbg(&dev->ib_dev,
"Skip as this PD is already configured vport\n");
mutex_unlock(&pd->vport_mutex);
return 0;
}
err = mana_cfg_vport(mpc, pd->pdn, doorbell_id);
if (err) {
pd->vport_use_count--;
mutex_unlock(&pd->vport_mutex);
ibdev_dbg(&dev->ib_dev, "Failed to configure vPort %d\n", err);
return err;
}
mutex_unlock(&pd->vport_mutex);
pd->tx_shortform_allowed = mpc->tx_shortform_allowed;
pd->tx_vp_offset = mpc->tx_vp_offset;
ibdev_dbg(&dev->ib_dev, "vport handle %llx pdid %x doorbell_id %x\n",
mpc->port_handle, pd->pdn, doorbell_id);
return 0;
}
int mana_ib_alloc_pd(struct ib_pd *ibpd, struct ib_udata *udata)
{
struct mana_ib_pd *pd = container_of(ibpd, struct mana_ib_pd, ibpd);
struct ib_device *ibdev = ibpd->device;
struct gdma_create_pd_resp resp = {};
struct gdma_create_pd_req req = {};
enum gdma_pd_flags flags = 0;
struct mana_ib_dev *dev;
struct gdma_context *gc;
int err;
dev = container_of(ibdev, struct mana_ib_dev, ib_dev);
gc = mdev_to_gc(dev);
mana_gd_init_req_hdr(&req.hdr, GDMA_CREATE_PD, sizeof(req),
sizeof(resp));
if (!udata)
flags |= GDMA_PD_FLAG_ALLOW_GPA_MR;
req.flags = flags;
err = mana_gd_send_request(gc, sizeof(req), &req,
sizeof(resp), &resp);
if (err || resp.hdr.status) {
ibdev_dbg(&dev->ib_dev,
"Failed to get pd_id err %d status %u\n", err,
resp.hdr.status);
if (!err)
err = -EPROTO;
return err;
}
pd->pd_handle = resp.pd_handle;
pd->pdn = resp.pd_id;
ibdev_dbg(&dev->ib_dev, "pd_handle 0x%llx pd_id %d\n",
pd->pd_handle, pd->pdn);
mutex_init(&pd->vport_mutex);
pd->vport_use_count = 0;
return 0;
}
int mana_ib_dealloc_pd(struct ib_pd *ibpd, struct ib_udata *udata)
{
struct mana_ib_pd *pd = container_of(ibpd, struct mana_ib_pd, ibpd);
struct ib_device *ibdev = ibpd->device;
struct gdma_destory_pd_resp resp = {};
struct gdma_destroy_pd_req req = {};
struct mana_ib_dev *dev;
struct gdma_context *gc;
int err;
dev = container_of(ibdev, struct mana_ib_dev, ib_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(gc, sizeof(req), &req,
sizeof(resp), &resp);
if (err || resp.hdr.status) {
ibdev_dbg(&dev->ib_dev,
"Failed to destroy pd_handle 0x%llx err %d status %u",
pd->pd_handle, err, resp.hdr.status);
if (!err)
err = -EPROTO;
}
return err;
}
static int mana_gd_destroy_doorbell_page(struct gdma_context *gc,
int doorbell_page)
{
struct gdma_destroy_resource_range_req req = {};
struct gdma_resp_hdr resp = {};
int err;
mana_gd_init_req_hdr(&req.hdr, GDMA_DESTROY_RESOURCE_RANGE,
sizeof(req), sizeof(resp));
req.resource_type = GDMA_RESOURCE_DOORBELL_PAGE;
req.num_resources = 1;
req.allocated_resources = doorbell_page;
err = mana_gd_send_request(gc, sizeof(req), &req, sizeof(resp), &resp);
if (err || resp.status) {
dev_err(gc->dev,
"Failed to destroy doorbell page: ret %d, 0x%x\n",
err, resp.status);
return err ?: -EPROTO;
}
return 0;
}
static int mana_gd_allocate_doorbell_page(struct gdma_context *gc,
int *doorbell_page)
{
struct gdma_allocate_resource_range_req req = {};
struct gdma_allocate_resource_range_resp resp = {};
int err;
mana_gd_init_req_hdr(&req.hdr, GDMA_ALLOCATE_RESOURCE_RANGE,
sizeof(req), sizeof(resp));
req.resource_type = GDMA_RESOURCE_DOORBELL_PAGE;
req.num_resources = 1;
req.alignment = PAGE_SIZE / MANA_PAGE_SIZE;
req.allocated_resources = 0;
err = mana_gd_send_request(gc, sizeof(req), &req, sizeof(resp), &resp);
if (err || resp.hdr.status) {
dev_err(gc->dev,
"Failed to allocate doorbell page: ret %d, 0x%x\n",
err, resp.hdr.status);
return err ?: -EPROTO;
}
*doorbell_page = resp.allocated_resources;
return 0;
}
int mana_ib_alloc_ucontext(struct ib_ucontext *ibcontext,
struct ib_udata *udata)
{
struct mana_ib_ucontext *ucontext =
container_of(ibcontext, struct mana_ib_ucontext, ibucontext);
struct ib_device *ibdev = ibcontext->device;
struct mana_ib_dev *mdev;
struct gdma_context *gc;
int doorbell_page;
int ret;
mdev = container_of(ibdev, struct mana_ib_dev, ib_dev);
gc = mdev_to_gc(mdev);
ret = mana_gd_allocate_doorbell_page(gc, &doorbell_page);
if (ret) {
ibdev_dbg(ibdev, "Failed to allocate doorbell page %d\n", ret);
return ret;
}
ibdev_dbg(ibdev, "Doorbell page allocated %d\n", doorbell_page);
ucontext->doorbell = doorbell_page;
return 0;
}
void mana_ib_dealloc_ucontext(struct ib_ucontext *ibcontext)
{
struct mana_ib_ucontext *mana_ucontext =
container_of(ibcontext, struct mana_ib_ucontext, ibucontext);
struct ib_device *ibdev = ibcontext->device;
struct mana_ib_dev *mdev;
struct gdma_context *gc;
int ret;
mdev = container_of(ibdev, struct mana_ib_dev, ib_dev);
gc = mdev_to_gc(mdev);
ret = mana_gd_destroy_doorbell_page(gc, mana_ucontext->doorbell);
if (ret)
ibdev_dbg(ibdev, "Failed to destroy doorbell page %d\n", ret);
}
int mana_ib_create_kernel_queue(struct mana_ib_dev *mdev, u32 size, enum gdma_queue_type type,
struct mana_ib_queue *queue)
{
struct gdma_queue_spec spec = {};
int err;
queue->id = INVALID_QUEUE_ID;
queue->gdma_region = GDMA_INVALID_DMA_REGION;
spec.type = type;
spec.monitor_avl_buf = false;
spec.queue_size = size;
err = mana_gd_create_mana_wq_cq(mdev->gdma_dev, &spec, &queue->kmem);
if (err)
return err;
queue->gdma_region = queue->kmem->mem_info.dma_region_handle;
queue->kmem->mem_info.dma_region_handle = GDMA_INVALID_DMA_REGION;
return 0;
}
int mana_ib_create_queue(struct mana_ib_dev *mdev, u64 addr, u32 size,
struct mana_ib_queue *queue)
{
struct ib_umem *umem;
int err;
queue->umem = NULL;
queue->id = INVALID_QUEUE_ID;
queue->gdma_region = GDMA_INVALID_DMA_REGION;
umem = ib_umem_get(&mdev->ib_dev, addr, size, IB_ACCESS_LOCAL_WRITE);
if (IS_ERR(umem)) {
ibdev_dbg(&mdev->ib_dev, "Failed to get umem, %pe\n", umem);
return PTR_ERR(umem);
}
err = mana_ib_create_zero_offset_dma_region(mdev, umem, &queue->gdma_region);
if (err) {
ibdev_dbg(&mdev->ib_dev, "Failed to create dma region, %d\n", err);
goto free_umem;
}
queue->umem = umem;
ibdev_dbg(&mdev->ib_dev, "created dma region 0x%llx\n", queue->gdma_region);
return 0;
free_umem:
ib_umem_release(umem);
return err;
}
void mana_ib_destroy_queue(struct mana_ib_dev *mdev, struct mana_ib_queue *queue)
{
mana_ib_gd_destroy_dma_region(mdev, queue->gdma_region);
ib_umem_release(queue->umem);
if (queue->kmem)
mana_gd_destroy_queue(mdev_to_gc(mdev), queue->kmem);
}
static int
mana_ib_gd_first_dma_region(struct mana_ib_dev *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)
{
struct gdma_create_dma_region_resp create_resp = {};
unsigned int create_req_msg_size;
int err;
create_req_msg_size =
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,
sizeof(create_resp), &create_resp);
if (err || create_resp.hdr.status != expected_status) {
ibdev_dbg(&dev->ib_dev,
"Failed to create DMA region: %d, 0x%x\n",
err, create_resp.hdr.status);
if (!err)
err = -EPROTO;
return err;
}
*gdma_region = create_resp.dma_region_handle;
ibdev_dbg(&dev->ib_dev, "Created DMA region handle 0x%llx\n",
*gdma_region);
return 0;
}
static int
mana_ib_gd_add_dma_region(struct mana_ib_dev *dev, struct gdma_context *gc,
struct gdma_dma_region_add_pages_req *add_req,
unsigned int num_pages, u32 expected_status)
{
unsigned int add_req_msg_size =
struct_size(add_req, page_addr_list, num_pages);
struct gdma_general_resp add_resp = {};
int err;
mana_gd_init_req_hdr(&add_req->hdr, GDMA_DMA_REGION_ADD_PAGES,
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,
sizeof(add_resp), &add_resp);
if (err || add_resp.hdr.status != expected_status) {
ibdev_dbg(&dev->ib_dev,
"Failed to create DMA region: %d, 0x%x\n",
err, add_resp.hdr.status);
if (!err)
err = -EPROTO;
return err;
}
return 0;
}
static int mana_ib_gd_create_dma_region(struct mana_ib_dev *dev, struct ib_umem *umem,
mana_handle_t *gdma_region, unsigned long page_sz)
{
struct gdma_dma_region_add_pages_req *add_req = NULL;
size_t num_pages_processed = 0, num_pages_to_handle;
struct gdma_create_dma_region_req *create_req;
unsigned int create_req_msg_size;
struct hw_channel_context *hwc;
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;
unsigned int tail = 0;
u64 *page_addr_list;
void *request_buf;
int err = 0;
gc = mdev_to_gc(dev);
hwc = gc->hwc.driver_data;
num_pages_total = ib_umem_num_dma_blocks(umem, page_sz);
max_pgs_create_cmd =
(hwc->max_req_msg_size - sizeof(*create_req)) / sizeof(u64);
num_pages_to_handle =
min_t(size_t, num_pages_total, max_pgs_create_cmd);
create_req_msg_size =
struct_size(create_req, page_addr_list, num_pages_to_handle);
request_buf = kzalloc(hwc->max_req_msg_size, GFP_KERNEL);
if (!request_buf)
return -ENOMEM;
create_req = request_buf;
mana_gd_init_req_hdr(&create_req->hdr, GDMA_CREATE_DMA_REGION,
create_req_msg_size,
sizeof(struct gdma_create_dma_region_resp));
create_req->length = umem->length;
create_req->offset_in_page = ib_umem_dma_offset(umem, page_sz);
create_req->gdma_page_type = order_base_2(page_sz) - MANA_PAGE_SHIFT;
create_req->page_count = num_pages_total;
ibdev_dbg(&dev->ib_dev, "size_dma_region %lu num_pages_total %lu\n",
umem->length, num_pages_total);
ibdev_dbg(&dev->ib_dev, "page_sz %lu offset_in_page %u\n",
page_sz, create_req->offset_in_page);
ibdev_dbg(&dev->ib_dev, "num_pages_to_handle %lu, gdma_page_type %u",
num_pages_to_handle, create_req->gdma_page_type);
page_addr_list = create_req->page_addr_list;
rdma_umem_for_each_dma_block(umem, &biter, page_sz) {
u32 expected_status = 0;
page_addr_list[tail++] = rdma_block_iter_dma_address(&biter);
if (tail < num_pages_to_handle)
continue;
if (num_pages_processed + num_pages_to_handle <
num_pages_total)
expected_status = GDMA_STATUS_MORE_ENTRIES;
if (!num_pages_processed) {
err = mana_ib_gd_first_dma_region(dev, gc, create_req,
tail, gdma_region,
expected_status);
if (err)
goto out;
max_pgs_add_cmd = (hwc->max_req_msg_size -
sizeof(*add_req)) / sizeof(u64);
add_req = request_buf;
add_req->dma_region_handle = *gdma_region;
add_req->reserved3 = 0;
page_addr_list = add_req->page_addr_list;
} else {
err = mana_ib_gd_add_dma_region(dev, gc, add_req, tail,
expected_status);
if (err)
break;
}
num_pages_processed += tail;
tail = 0;
num_pages_to_handle =
min_t(size_t,
num_pages_total - num_pages_processed,
max_pgs_add_cmd);
}
if (err)
mana_ib_gd_destroy_dma_region(dev, *gdma_region);
out:
kfree(request_buf);
return err;
}
int mana_ib_create_dma_region(struct mana_ib_dev *dev, struct ib_umem *umem,
mana_handle_t *gdma_region, u64 virt)
{
unsigned long page_sz;
page_sz = ib_umem_find_best_pgsz(umem, dev->adapter_caps.page_size_cap, virt);
if (!page_sz) {
ibdev_dbg(&dev->ib_dev, "Failed to find page size.\n");
return -EINVAL;
}
return mana_ib_gd_create_dma_region(dev, umem, gdma_region, page_sz);
}
int mana_ib_create_zero_offset_dma_region(struct mana_ib_dev *dev, struct ib_umem *umem,
mana_handle_t *gdma_region)
{
unsigned long page_sz;
page_sz = ib_umem_find_best_pgoff(umem, dev->adapter_caps.page_size_cap, 0);
if (!page_sz) {
ibdev_dbg(&dev->ib_dev, "Failed to find page size.\n");
return -EINVAL;
}
return mana_ib_gd_create_dma_region(dev, umem, gdma_region, page_sz);
}
int mana_ib_gd_destroy_dma_region(struct mana_ib_dev *dev, u64 gdma_region)
{
struct gdma_context *gc = mdev_to_gc(dev);
ibdev_dbg(&dev->ib_dev, "destroy dma region 0x%llx\n", gdma_region);
return mana_gd_destroy_dma_region(gc, gdma_region);
}
int mana_ib_mmap(struct ib_ucontext *ibcontext, struct vm_area_struct *vma)
{
struct mana_ib_ucontext *mana_ucontext =
container_of(ibcontext, struct mana_ib_ucontext, ibucontext);
struct ib_device *ibdev = ibcontext->device;
struct mana_ib_dev *mdev;
struct gdma_context *gc;
phys_addr_t pfn;
pgprot_t prot;
int ret;
mdev = container_of(ibdev, struct mana_ib_dev, ib_dev);
gc = mdev_to_gc(mdev);
if (vma->vm_pgoff != 0) {
ibdev_dbg(ibdev, "Unexpected vm_pgoff %lu\n", vma->vm_pgoff);
return -EINVAL;
}
pfn = (gc->phys_db_page_base +
gc->db_page_size * mana_ucontext->doorbell) >>
PAGE_SHIFT;
prot = pgprot_writecombine(vma->vm_page_prot);
ret = rdma_user_mmap_io(ibcontext, vma, pfn, 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 %lu, ret %d\n",
pfn, PAGE_SIZE, ret);
return ret;
}
int mana_ib_get_port_immutable(struct ib_device *ibdev, u32 port_num,
struct ib_port_immutable *immutable)
{
struct mana_ib_dev *dev = container_of(ibdev, struct mana_ib_dev, ib_dev);
struct ib_port_attr attr;
int err;
err = ib_query_port(ibdev, port_num, &attr);
if (err)
return err;
immutable->pkey_tbl_len = attr.pkey_tbl_len;
immutable->gid_tbl_len = attr.gid_tbl_len;
if (mana_ib_is_rnic(dev)) {
if (port_num == 1) {
immutable->core_cap_flags = RDMA_CORE_PORT_IBA_ROCE_UDP_ENCAP;
immutable->max_mad_size = IB_MGMT_MAD_SIZE;
} else {
immutable->core_cap_flags = RDMA_CORE_CAP_PROT_ROCE_UDP_ENCAP
| RDMA_CORE_CAP_ETH_AH;
immutable->max_mad_size = 0;
}
} else {
immutable->core_cap_flags = RDMA_CORE_PORT_RAW_PACKET;
}
return 0;
}
int mana_ib_query_device(struct ib_device *ibdev, struct ib_device_attr *props,
struct ib_udata *uhw)
{
struct mana_ib_dev *dev = container_of(ibdev, struct mana_ib_dev, ib_dev);
struct pci_dev *pdev = to_pci_dev(mdev_to_gc(dev)->dev);
memset(props, 0, sizeof(*props));
props->vendor_id = pdev->vendor;
props->vendor_part_id = dev->gdma_dev->dev_id.type;
props->max_mr_size = MANA_IB_MAX_MR_SIZE;
props->page_size_cap = dev->adapter_caps.page_size_cap;
props->max_qp = dev->adapter_caps.max_qp_count;
props->max_qp_wr = dev->adapter_caps.max_qp_wr;
props->device_cap_flags = IB_DEVICE_RC_RNR_NAK_GEN;
props->max_send_sge = dev->adapter_caps.max_send_sge_count;
props->max_recv_sge = dev->adapter_caps.max_recv_sge_count;
props->max_sge_rd = dev->adapter_caps.max_recv_sge_count;
props->max_cq = dev->adapter_caps.max_cq_count;
props->max_cqe = dev->adapter_caps.max_qp_wr;
props->max_mr = dev->adapter_caps.max_mr_count;
props->max_pd = dev->adapter_caps.max_pd_count;
props->max_qp_rd_atom = dev->adapter_caps.max_inbound_read_limit;
props->max_res_rd_atom = props->max_qp_rd_atom * props->max_qp;
props->max_qp_init_rd_atom = dev->adapter_caps.max_outbound_read_limit;
props->atomic_cap = IB_ATOMIC_NONE;
props->masked_atomic_cap = IB_ATOMIC_NONE;
props->max_ah = INT_MAX;
props->max_pkeys = 1;
props->local_ca_ack_delay = MANA_CA_ACK_DELAY;
if (!mana_ib_is_rnic(dev))
props->raw_packet_caps = IB_RAW_PACKET_CAP_IP_CSUM;
return 0;
}
int mana_ib_query_port(struct ib_device *ibdev, u32 port,
struct ib_port_attr *props)
{
struct mana_ib_dev *dev = container_of(ibdev, struct mana_ib_dev, ib_dev);
struct net_device *ndev = mana_ib_get_netdev(ibdev, port);
if (!ndev)
return -EINVAL;
memset(props, 0, sizeof(*props));
props->max_mtu = IB_MTU_4096;
props->active_mtu = ib_mtu_int_to_enum(ndev->mtu);
if (netif_carrier_ok(ndev) && netif_running(ndev)) {
props->state = IB_PORT_ACTIVE;
props->phys_state = IB_PORT_PHYS_STATE_LINK_UP;
} else {
props->state = IB_PORT_DOWN;
props->phys_state = IB_PORT_PHYS_STATE_DISABLED;
}
props->active_width = IB_WIDTH_4X;
props->active_speed = IB_SPEED_EDR;
props->pkey_tbl_len = 1;
if (mana_ib_is_rnic(dev)) {
props->gid_tbl_len = 16;
props->ip_gids = true;
if (port == 1)
props->port_cap_flags = IB_PORT_CM_SUP;
}
return 0;
}
enum rdma_link_layer mana_ib_get_link_layer(struct ib_device *device, u32 port_num)
{
return IB_LINK_LAYER_ETHERNET;
}
int mana_ib_query_pkey(struct ib_device *ibdev, u32 port, u16 index, u16 *pkey)
{
if (index != 0)
return -EINVAL;
*pkey = IB_DEFAULT_PKEY_FULL;
return 0;
}
int mana_ib_query_gid(struct ib_device *ibdev, u32 port, int index,
union ib_gid *gid)
{
return 0;
}
void mana_ib_disassociate_ucontext(struct ib_ucontext *ibcontext)
{
}
int mana_ib_gd_query_adapter_caps(struct mana_ib_dev *dev)
{
struct mana_ib_adapter_caps *caps = &dev->adapter_caps;
struct mana_ib_query_adapter_caps_resp resp = {};
struct mana_ib_query_adapter_caps_req req = {};
int err;
mana_gd_init_req_hdr(&req.hdr, MANA_IB_GET_ADAPTER_CAP, sizeof(req),
sizeof(resp));
req.hdr.resp.msg_version = GDMA_MESSAGE_V4;
req.hdr.dev_id = dev->gdma_dev->dev_id;
err = mana_gd_send_request(mdev_to_gc(dev), sizeof(req),
&req, sizeof(resp), &resp);
if (err) {
ibdev_err(&dev->ib_dev,
"Failed to query adapter caps err %d", err);
return err;
}
caps->max_sq_id = resp.max_sq_id;
caps->max_rq_id = resp.max_rq_id;
caps->max_cq_id = resp.max_cq_id;
caps->max_qp_count = resp.max_qp_count;
caps->max_cq_count = resp.max_cq_count;
caps->max_mr_count = resp.max_mr_count;
caps->max_pd_count = resp.max_pd_count;
caps->max_inbound_read_limit = resp.max_inbound_read_limit;
caps->max_outbound_read_limit = resp.max_outbound_read_limit;
caps->mw_count = resp.mw_count;
caps->max_srq_count = resp.max_srq_count;
caps->max_qp_wr = min_t(u32,
resp.max_requester_sq_size / GDMA_MAX_SQE_SIZE,
resp.max_requester_rq_size / GDMA_MAX_RQE_SIZE);
caps->max_inline_data_size = resp.max_inline_data_size;
caps->max_send_sge_count = resp.max_send_sge_count;
caps->max_recv_sge_count = resp.max_recv_sge_count;
caps->feature_flags = resp.feature_flags;
caps->page_size_cap = PAGE_SZ_BM;
if (mdev_to_gc(dev)->pf_cap_flags1 & GDMA_DRV_CAP_FLAG_1_GDMA_PAGES_4MB_1GB_2GB)
caps->page_size_cap |= (SZ_4M | SZ_1G | SZ_2G);
return 0;
}
int mana_eth_query_adapter_caps(struct mana_ib_dev *dev)
{
struct mana_ib_adapter_caps *caps = &dev->adapter_caps;
struct gdma_query_max_resources_resp resp = {};
struct gdma_general_req req = {};
int err;
mana_gd_init_req_hdr(&req.hdr, GDMA_QUERY_MAX_RESOURCES,
sizeof(req), sizeof(resp));
err = mana_gd_send_request(mdev_to_gc(dev), sizeof(req), &req, sizeof(resp), &resp);
if (err) {
ibdev_err(&dev->ib_dev,
"Failed to query adapter caps err %d", err);
return err;
}
caps->max_qp_count = min_t(u32, resp.max_sq, resp.max_rq);
caps->max_cq_count = resp.max_cq;
caps->max_mr_count = resp.max_mst;
caps->max_pd_count = 0x6000;
caps->max_qp_wr = min_t(u32,
0x100000 / GDMA_MAX_SQE_SIZE,
0x100000 / GDMA_MAX_RQE_SIZE);
caps->max_send_sge_count = 30;
caps->max_recv_sge_count = 15;
caps->page_size_cap = PAGE_SZ_BM;
return 0;
}
static void
mana_ib_event_handler(void *ctx, struct gdma_queue *q, struct gdma_event *event)
{
struct mana_ib_dev *mdev = (struct mana_ib_dev *)ctx;
struct mana_ib_qp *qp;
struct ib_event ev;
u32 qpn;
switch (event->type) {
case GDMA_EQE_RNIC_QP_FATAL:
qpn = event->details[0];
qp = mana_get_qp_ref(mdev, qpn, false);
if (!qp)
break;
if (qp->ibqp.event_handler) {
ev.device = qp->ibqp.device;
ev.element.qp = &qp->ibqp;
ev.event = IB_EVENT_QP_FATAL;
qp->ibqp.event_handler(&ev, qp->ibqp.qp_context);
}
mana_put_qp_ref(qp);
break;
default:
break;
}
}
int mana_ib_create_eqs(struct mana_ib_dev *mdev)
{
struct gdma_context *gc = mdev_to_gc(mdev);
struct gdma_queue_spec spec = {};
int err, i;
spec.type = GDMA_EQ;
spec.monitor_avl_buf = false;
spec.queue_size = EQ_SIZE;
spec.eq.callback = mana_ib_event_handler;
spec.eq.context = mdev;
spec.eq.log2_throttle_limit = LOG2_EQ_THROTTLE;
spec.eq.msix_index = 0;
err = mana_gd_create_mana_eq(mdev->gdma_dev, &spec, &mdev->fatal_err_eq);
if (err)
return err;
mdev->eqs = kzalloc_objs(struct gdma_queue *,
mdev->ib_dev.num_comp_vectors);
if (!mdev->eqs) {
err = -ENOMEM;
goto destroy_fatal_eq;
}
spec.eq.callback = NULL;
for (i = 0; i < mdev->ib_dev.num_comp_vectors; i++) {
spec.eq.msix_index = (i + 1) % gc->num_msix_usable;
err = mana_gd_create_mana_eq(mdev->gdma_dev, &spec, &mdev->eqs[i]);
if (err)
goto destroy_eqs;
}
return 0;
destroy_eqs:
while (i-- > 0)
mana_gd_destroy_queue(gc, mdev->eqs[i]);
kfree(mdev->eqs);
destroy_fatal_eq:
mana_gd_destroy_queue(gc, mdev->fatal_err_eq);
return err;
}
void mana_ib_destroy_eqs(struct mana_ib_dev *mdev)
{
struct gdma_context *gc = mdev_to_gc(mdev);
int i;
mana_gd_destroy_queue(gc, mdev->fatal_err_eq);
for (i = 0; i < mdev->ib_dev.num_comp_vectors; i++)
mana_gd_destroy_queue(gc, mdev->eqs[i]);
kfree(mdev->eqs);
}
int mana_ib_gd_create_rnic_adapter(struct mana_ib_dev *mdev)
{
struct mana_rnic_create_adapter_resp resp = {};
struct mana_rnic_create_adapter_req req = {};
struct gdma_context *gc = mdev_to_gc(mdev);
int err;
mana_gd_init_req_hdr(&req.hdr, MANA_IB_CREATE_ADAPTER, sizeof(req), sizeof(resp));
req.hdr.req.msg_version = GDMA_MESSAGE_V2;
req.hdr.dev_id = mdev->gdma_dev->dev_id;
req.notify_eq_id = mdev->fatal_err_eq->id;
if (mdev->adapter_caps.feature_flags & MANA_IB_FEATURE_CLIENT_ERROR_CQE_SUPPORT)
req.feature_flags |= MANA_IB_FEATURE_CLIENT_ERROR_CQE_REQUEST;
err = mana_gd_send_request(gc, sizeof(req), &req, sizeof(resp), &resp);
if (err) {
ibdev_err(&mdev->ib_dev, "Failed to create RNIC adapter err %d", err);
return err;
}
mdev->adapter_handle = resp.adapter;
return 0;
}
int mana_ib_gd_destroy_rnic_adapter(struct mana_ib_dev *mdev)
{
struct mana_rnic_destroy_adapter_resp resp = {};
struct mana_rnic_destroy_adapter_req req = {};
struct gdma_context *gc;
int err;
gc = mdev_to_gc(mdev);
mana_gd_init_req_hdr(&req.hdr, MANA_IB_DESTROY_ADAPTER, sizeof(req), sizeof(resp));
req.hdr.dev_id = mdev->gdma_dev->dev_id;
req.adapter = mdev->adapter_handle;
err = mana_gd_send_request(gc, sizeof(req), &req, sizeof(resp), &resp);
if (err) {
ibdev_err(&mdev->ib_dev, "Failed to destroy RNIC adapter err %d", err);
return err;
}
return 0;
}
int mana_ib_gd_add_gid(const struct ib_gid_attr *attr, void **context)
{
struct mana_ib_dev *mdev = container_of(attr->device, struct mana_ib_dev, ib_dev);
enum rdma_network_type ntype = rdma_gid_attr_network_type(attr);
struct mana_rnic_config_addr_resp resp = {};
struct gdma_context *gc = mdev_to_gc(mdev);
struct mana_rnic_config_addr_req req = {};
int err;
if (ntype != RDMA_NETWORK_IPV4 && ntype != RDMA_NETWORK_IPV6) {
ibdev_dbg(&mdev->ib_dev, "Unsupported rdma network type %d", ntype);
return -EINVAL;
}
mana_gd_init_req_hdr(&req.hdr, MANA_IB_CONFIG_IP_ADDR, sizeof(req), sizeof(resp));
req.hdr.dev_id = mdev->gdma_dev->dev_id;
req.adapter = mdev->adapter_handle;
req.op = ADDR_OP_ADD;
req.sgid_type = (ntype == RDMA_NETWORK_IPV6) ? SGID_TYPE_IPV6 : SGID_TYPE_IPV4;
copy_in_reverse(req.ip_addr, attr->gid.raw, sizeof(union ib_gid));
err = mana_gd_send_request(gc, sizeof(req), &req, sizeof(resp), &resp);
if (err) {
ibdev_err(&mdev->ib_dev, "Failed to config IP addr err %d\n", err);
return err;
}
return 0;
}
int mana_ib_gd_del_gid(const struct ib_gid_attr *attr, void **context)
{
struct mana_ib_dev *mdev = container_of(attr->device, struct mana_ib_dev, ib_dev);
enum rdma_network_type ntype = rdma_gid_attr_network_type(attr);
struct mana_rnic_config_addr_resp resp = {};
struct gdma_context *gc = mdev_to_gc(mdev);
struct mana_rnic_config_addr_req req = {};
int err;
if (ntype != RDMA_NETWORK_IPV4 && ntype != RDMA_NETWORK_IPV6) {
ibdev_dbg(&mdev->ib_dev, "Unsupported rdma network type %d", ntype);
return -EINVAL;
}
mana_gd_init_req_hdr(&req.hdr, MANA_IB_CONFIG_IP_ADDR, sizeof(req), sizeof(resp));
req.hdr.dev_id = mdev->gdma_dev->dev_id;
req.adapter = mdev->adapter_handle;
req.op = ADDR_OP_REMOVE;
req.sgid_type = (ntype == RDMA_NETWORK_IPV6) ? SGID_TYPE_IPV6 : SGID_TYPE_IPV4;
copy_in_reverse(req.ip_addr, attr->gid.raw, sizeof(union ib_gid));
err = mana_gd_send_request(gc, sizeof(req), &req, sizeof(resp), &resp);
if (err) {
ibdev_err(&mdev->ib_dev, "Failed to config IP addr err %d\n", err);
return err;
}
return 0;
}
int mana_ib_gd_config_mac(struct mana_ib_dev *mdev, enum mana_ib_addr_op op, u8 *mac)
{
struct mana_rnic_config_mac_addr_resp resp = {};
struct mana_rnic_config_mac_addr_req req = {};
struct gdma_context *gc = mdev_to_gc(mdev);
int err;
mana_gd_init_req_hdr(&req.hdr, MANA_IB_CONFIG_MAC_ADDR, sizeof(req), sizeof(resp));
req.hdr.dev_id = mdev->gdma_dev->dev_id;
req.adapter = mdev->adapter_handle;
req.op = op;
copy_in_reverse(req.mac_addr, mac, ETH_ALEN);
err = mana_gd_send_request(gc, sizeof(req), &req, sizeof(resp), &resp);
if (err) {
ibdev_err(&mdev->ib_dev, "Failed to config Mac addr err %d", err);
return err;
}
return 0;
}
int mana_ib_gd_create_cq(struct mana_ib_dev *mdev, struct mana_ib_cq *cq, u32 doorbell)
{
struct gdma_context *gc = mdev_to_gc(mdev);
struct mana_rnic_create_cq_resp resp = {};
struct mana_rnic_create_cq_req req = {};
int err;
if (!mdev->eqs)
return -EINVAL;
mana_gd_init_req_hdr(&req.hdr, MANA_IB_CREATE_CQ, sizeof(req), sizeof(resp));
req.hdr.dev_id = mdev->gdma_dev->dev_id;
req.adapter = mdev->adapter_handle;
req.gdma_region = cq->queue.gdma_region;
req.eq_id = mdev->eqs[cq->comp_vector]->id;
req.doorbell_page = doorbell;
err = mana_gd_send_request(gc, sizeof(req), &req, sizeof(resp), &resp);
if (err) {
ibdev_err(&mdev->ib_dev, "Failed to create cq err %d", err);
return err;
}
cq->queue.id = resp.cq_id;
cq->cq_handle = resp.cq_handle;
cq->queue.gdma_region = GDMA_INVALID_DMA_REGION;
return 0;
}
int mana_ib_gd_destroy_cq(struct mana_ib_dev *mdev, struct mana_ib_cq *cq)
{
struct gdma_context *gc = mdev_to_gc(mdev);
struct mana_rnic_destroy_cq_resp resp = {};
struct mana_rnic_destroy_cq_req req = {};
int err;
if (cq->cq_handle == INVALID_MANA_HANDLE)
return 0;
mana_gd_init_req_hdr(&req.hdr, MANA_IB_DESTROY_CQ, sizeof(req), sizeof(resp));
req.hdr.dev_id = mdev->gdma_dev->dev_id;
req.adapter = mdev->adapter_handle;
req.cq_handle = cq->cq_handle;
err = mana_gd_send_request(gc, sizeof(req), &req, sizeof(resp), &resp);
if (err) {
ibdev_err(&mdev->ib_dev, "Failed to destroy cq err %d", err);
return err;
}
return 0;
}
int mana_ib_gd_create_rc_qp(struct mana_ib_dev *mdev, struct mana_ib_qp *qp,
struct ib_qp_init_attr *attr, u32 doorbell, u64 flags)
{
struct mana_ib_cq *send_cq = container_of(qp->ibqp.send_cq, struct mana_ib_cq, ibcq);
struct mana_ib_cq *recv_cq = container_of(qp->ibqp.recv_cq, struct mana_ib_cq, ibcq);
struct mana_ib_pd *pd = container_of(qp->ibqp.pd, struct mana_ib_pd, ibpd);
struct gdma_context *gc = mdev_to_gc(mdev);
struct mana_rnic_create_qp_resp resp = {};
struct mana_rnic_create_qp_req req = {};
int err, i;
mana_gd_init_req_hdr(&req.hdr, MANA_IB_CREATE_RC_QP, sizeof(req), sizeof(resp));
req.hdr.dev_id = mdev->gdma_dev->dev_id;
req.adapter = mdev->adapter_handle;
req.pd_handle = pd->pd_handle;
req.send_cq_handle = send_cq->cq_handle;
req.recv_cq_handle = recv_cq->cq_handle;
for (i = 0; i < MANA_RC_QUEUE_TYPE_MAX; i++)
req.dma_region[i] = qp->rc_qp.queues[i].gdma_region;
req.doorbell_page = doorbell;
req.max_send_wr = attr->cap.max_send_wr;
req.max_recv_wr = attr->cap.max_recv_wr;
req.max_send_sge = attr->cap.max_send_sge;
req.max_recv_sge = attr->cap.max_recv_sge;
req.flags = flags;
err = mana_gd_send_request(gc, sizeof(req), &req, sizeof(resp), &resp);
if (err) {
ibdev_err(&mdev->ib_dev, "Failed to create rc qp err %d", err);
return err;
}
qp->qp_handle = resp.rc_qp_handle;
for (i = 0; i < MANA_RC_QUEUE_TYPE_MAX; i++) {
qp->rc_qp.queues[i].id = resp.queue_ids[i];
qp->rc_qp.queues[i].gdma_region = GDMA_INVALID_DMA_REGION;
}
return 0;
}
int mana_ib_gd_destroy_rc_qp(struct mana_ib_dev *mdev, struct mana_ib_qp *qp)
{
struct mana_rnic_destroy_rc_qp_resp resp = {0};
struct mana_rnic_destroy_rc_qp_req req = {0};
struct gdma_context *gc = mdev_to_gc(mdev);
int err;
mana_gd_init_req_hdr(&req.hdr, MANA_IB_DESTROY_RC_QP, sizeof(req), sizeof(resp));
req.hdr.dev_id = mdev->gdma_dev->dev_id;
req.adapter = mdev->adapter_handle;
req.rc_qp_handle = qp->qp_handle;
err = mana_gd_send_request(gc, sizeof(req), &req, sizeof(resp), &resp);
if (err) {
ibdev_err(&mdev->ib_dev, "Failed to destroy rc qp err %d", err);
return err;
}
return 0;
}
int mana_ib_gd_create_ud_qp(struct mana_ib_dev *mdev, struct mana_ib_qp *qp,
struct ib_qp_init_attr *attr, u32 doorbell, u32 type)
{
struct mana_ib_cq *send_cq = container_of(qp->ibqp.send_cq, struct mana_ib_cq, ibcq);
struct mana_ib_cq *recv_cq = container_of(qp->ibqp.recv_cq, struct mana_ib_cq, ibcq);
struct mana_ib_pd *pd = container_of(qp->ibqp.pd, struct mana_ib_pd, ibpd);
struct gdma_context *gc = mdev_to_gc(mdev);
struct mana_rnic_create_udqp_resp resp = {};
struct mana_rnic_create_udqp_req req = {};
int err, i;
mana_gd_init_req_hdr(&req.hdr, MANA_IB_CREATE_UD_QP, sizeof(req), sizeof(resp));
req.hdr.dev_id = mdev->gdma_dev->dev_id;
req.adapter = mdev->adapter_handle;
req.pd_handle = pd->pd_handle;
req.send_cq_handle = send_cq->cq_handle;
req.recv_cq_handle = recv_cq->cq_handle;
for (i = 0; i < MANA_UD_QUEUE_TYPE_MAX; i++)
req.dma_region[i] = qp->ud_qp.queues[i].gdma_region;
req.doorbell_page = doorbell;
req.max_send_wr = attr->cap.max_send_wr;
req.max_recv_wr = attr->cap.max_recv_wr;
req.max_send_sge = attr->cap.max_send_sge;
req.max_recv_sge = attr->cap.max_recv_sge;
req.qp_type = type;
err = mana_gd_send_request(gc, sizeof(req), &req, sizeof(resp), &resp);
if (err) {
ibdev_err(&mdev->ib_dev, "Failed to create ud qp err %d", err);
return err;
}
qp->qp_handle = resp.qp_handle;
for (i = 0; i < MANA_UD_QUEUE_TYPE_MAX; i++) {
qp->ud_qp.queues[i].id = resp.queue_ids[i];
qp->ud_qp.queues[i].gdma_region = GDMA_INVALID_DMA_REGION;
}
return 0;
}
int mana_ib_gd_destroy_ud_qp(struct mana_ib_dev *mdev, struct mana_ib_qp *qp)
{
struct mana_rnic_destroy_udqp_resp resp = {0};
struct mana_rnic_destroy_udqp_req req = {0};
struct gdma_context *gc = mdev_to_gc(mdev);
int err;
mana_gd_init_req_hdr(&req.hdr, MANA_IB_DESTROY_UD_QP, sizeof(req), sizeof(resp));
req.hdr.dev_id = mdev->gdma_dev->dev_id;
req.adapter = mdev->adapter_handle;
req.qp_handle = qp->qp_handle;
err = mana_gd_send_request(gc, sizeof(req), &req, sizeof(resp), &resp);
if (err) {
ibdev_err(&mdev->ib_dev, "Failed to destroy ud qp err %d", err);
return err;
}
return 0;
}
