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RDMA/bnxt_re: Support raw data query for each resources
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Support interfaces to get the raw data for each of
the resources. Use this interface to get some of the
HW structures from active resources.

Signed-off-by: Kashyap Desai <kashyap.desai@broadcom.com>
Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com>
Link: https://patch.msgid.link/1730428483-17841-4-git-send-email-selvin.xavier@broadcom.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
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Kashyap Desai authored and Leon Romanovsky committed Nov 4, 2024
1 parent 3b72946 commit e4bcf8e
Showing 1 changed file with 118 additions and 0 deletions.
118 changes: 118 additions & 0 deletions drivers/infiniband/hw/bnxt_re/main.c
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Original file line number Diff line number Diff line change
Expand Up @@ -903,6 +903,35 @@ static int bnxt_re_fill_res_mr_entry(struct sk_buff *msg, struct ib_mr *ib_mr)
return -EMSGSIZE;
}

static int bnxt_re_fill_res_mr_entry_raw(struct sk_buff *msg, struct ib_mr *ib_mr)
{
struct bnxt_re_dev *rdev;
struct bnxt_re_mr *mr;
int err, len;
void *data;

mr = container_of(ib_mr, struct bnxt_re_mr, ib_mr);
rdev = mr->rdev;

err = bnxt_re_read_context_allowed(rdev);
if (err)
return err;

len = bnxt_qplib_is_chip_gen_p7(rdev->chip_ctx) ? BNXT_RE_CONTEXT_TYPE_MRW_SIZE_P7 :
BNXT_RE_CONTEXT_TYPE_MRW_SIZE_P5;
data = kzalloc(len, GFP_KERNEL);
if (!data)
return -ENOMEM;

err = bnxt_qplib_read_context(&rdev->rcfw, CMDQ_READ_CONTEXT_TYPE_MRW,
mr->qplib_mr.lkey, len, data);
if (!err)
err = nla_put(msg, RDMA_NLDEV_ATTR_RES_RAW, len, data);

kfree(data);
return err;
}

static int bnxt_re_fill_res_cq_entry(struct sk_buff *msg, struct ib_cq *ib_cq)
{
struct bnxt_qplib_hwq *cq_hwq;
Expand Down Expand Up @@ -933,6 +962,36 @@ static int bnxt_re_fill_res_cq_entry(struct sk_buff *msg, struct ib_cq *ib_cq)
return -EMSGSIZE;
}

static int bnxt_re_fill_res_cq_entry_raw(struct sk_buff *msg, struct ib_cq *ib_cq)
{
struct bnxt_re_dev *rdev;
struct bnxt_re_cq *cq;
int err, len;
void *data;

cq = container_of(ib_cq, struct bnxt_re_cq, ib_cq);
rdev = cq->rdev;

err = bnxt_re_read_context_allowed(rdev);
if (err)
return err;

len = bnxt_qplib_is_chip_gen_p7(rdev->chip_ctx) ? BNXT_RE_CONTEXT_TYPE_CQ_SIZE_P7 :
BNXT_RE_CONTEXT_TYPE_CQ_SIZE_P5;
data = kzalloc(len, GFP_KERNEL);
if (!data)
return -ENOMEM;

err = bnxt_qplib_read_context(&rdev->rcfw,
CMDQ_READ_CONTEXT_TYPE_CQ,
cq->qplib_cq.id, len, data);
if (!err)
err = nla_put(msg, RDMA_NLDEV_ATTR_RES_RAW, len, data);

kfree(data);
return err;
}

static int bnxt_re_fill_res_qp_entry(struct sk_buff *msg, struct ib_qp *ib_qp)
{
struct bnxt_qplib_qp *qplib_qp;
Expand Down Expand Up @@ -977,6 +1036,31 @@ static int bnxt_re_fill_res_qp_entry(struct sk_buff *msg, struct ib_qp *ib_qp)
return -EMSGSIZE;
}

static int bnxt_re_fill_res_qp_entry_raw(struct sk_buff *msg, struct ib_qp *ibqp)
{
struct bnxt_re_dev *rdev = to_bnxt_re_dev(ibqp->device, ibdev);
int err, len;
void *data;

err = bnxt_re_read_context_allowed(rdev);
if (err)
return err;

len = bnxt_qplib_is_chip_gen_p7(rdev->chip_ctx) ? BNXT_RE_CONTEXT_TYPE_QPC_SIZE_P7 :
BNXT_RE_CONTEXT_TYPE_QPC_SIZE_P5;
data = kzalloc(len, GFP_KERNEL);
if (!data)
return -ENOMEM;

err = bnxt_qplib_read_context(&rdev->rcfw, CMDQ_READ_CONTEXT_TYPE_QPC,
ibqp->qp_num, len, data);
if (!err)
err = nla_put(msg, RDMA_NLDEV_ATTR_RES_RAW, len, data);

kfree(data);
return err;
}

static int bnxt_re_fill_res_srq_entry(struct sk_buff *msg, struct ib_srq *ib_srq)
{
struct nlattr *table_attr;
Expand All @@ -1003,6 +1087,36 @@ static int bnxt_re_fill_res_srq_entry(struct sk_buff *msg, struct ib_srq *ib_srq
return -EMSGSIZE;
}

static int bnxt_re_fill_res_srq_entry_raw(struct sk_buff *msg, struct ib_srq *ib_srq)
{
struct bnxt_re_dev *rdev;
struct bnxt_re_srq *srq;
int err, len;
void *data;

srq = container_of(ib_srq, struct bnxt_re_srq, ib_srq);
rdev = srq->rdev;

err = bnxt_re_read_context_allowed(rdev);
if (err)
return err;

len = bnxt_qplib_is_chip_gen_p7(rdev->chip_ctx) ? BNXT_RE_CONTEXT_TYPE_SRQ_SIZE_P7 :
BNXT_RE_CONTEXT_TYPE_SRQ_SIZE_P5;

data = kzalloc(len, GFP_KERNEL);
if (!data)
return -ENOMEM;

err = bnxt_qplib_read_context(&rdev->rcfw, CMDQ_READ_CONTEXT_TYPE_SRQ,
srq->qplib_srq.id, len, data);
if (!err)
err = nla_put(msg, RDMA_NLDEV_ATTR_RES_RAW, len, data);

kfree(data);
return err;
}

static const struct ib_device_ops bnxt_re_dev_ops = {
.owner = THIS_MODULE,
.driver_id = RDMA_DRIVER_BNXT_RE,
Expand Down Expand Up @@ -1063,9 +1177,13 @@ static const struct ib_device_ops bnxt_re_dev_ops = {

static const struct ib_device_ops restrack_ops = {
.fill_res_cq_entry = bnxt_re_fill_res_cq_entry,
.fill_res_cq_entry_raw = bnxt_re_fill_res_cq_entry_raw,
.fill_res_qp_entry = bnxt_re_fill_res_qp_entry,
.fill_res_qp_entry_raw = bnxt_re_fill_res_qp_entry_raw,
.fill_res_mr_entry = bnxt_re_fill_res_mr_entry,
.fill_res_mr_entry_raw = bnxt_re_fill_res_mr_entry_raw,
.fill_res_srq_entry = bnxt_re_fill_res_srq_entry,
.fill_res_srq_entry_raw = bnxt_re_fill_res_srq_entry_raw,
};

static int bnxt_re_register_ib(struct bnxt_re_dev *rdev)
Expand Down

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