From: Leon Romanovsky <leon@kernel.org>
To: Doug Ledford <dledford@redhat.com>, Jason Gunthorpe <jgg@mellanox.com>
Cc: Leon Romanovsky <leonro@mellanox.com>,
linux-rdma@vger.kernel.org, Maor Gottlieb <maorg@mellanox.com>
Subject: [PATCH rdma-next 12/18] RDMA/mlx5: Group all create QP parameters to simplify in-kernel interfaces
Date: Thu, 23 Apr 2020 22:02:57 +0300 [thread overview]
Message-ID: <20200423190303.12856-13-leon@kernel.org> (raw)
In-Reply-To: <20200423190303.12856-1-leon@kernel.org>
From: Leon Romanovsky <leonro@mellanox.com>
The amount of parameters passed in and out between internal mlx5
create QP functions is too large to easily follow the flow. Change
it by grouping all create QP parameter into one structure.
Reviewed-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
---
drivers/infiniband/hw/mlx5/qp.c | 148 +++++++++++++++++---------------
1 file changed, 81 insertions(+), 67 deletions(-)
diff --git a/drivers/infiniband/hw/mlx5/qp.c b/drivers/infiniband/hw/mlx5/qp.c
index 78c34737ae2f..310d9a4d5a30 100644
--- a/drivers/infiniband/hw/mlx5/qp.c
+++ b/drivers/infiniband/hw/mlx5/qp.c
@@ -1610,14 +1610,24 @@ static void destroy_rss_raw_qp_tir(struct mlx5_ib_dev *dev, struct mlx5_ib_qp *q
to_mpd(qp->ibqp.pd)->uid);
}
-static int create_rss_raw_qp_tir(struct ib_pd *pd, struct mlx5_ib_qp *qp,
- struct ib_qp_init_attr *init_attr,
- struct mlx5_ib_create_qp_rss *ucmd,
- struct ib_udata *udata)
+struct mlx5_create_qp_params {
+ struct ib_udata *udata;
+ size_t inlen;
+ void *ucmd;
+ u8 is_rss_raw : 1;
+ struct ib_qp_init_attr *attr;
+ u32 uidx;
+};
+
+static int create_rss_raw_qp_tir(struct mlx5_ib_dev *dev, struct ib_pd *pd,
+ struct mlx5_ib_qp *qp,
+ struct mlx5_create_qp_params *params)
{
+ struct ib_qp_init_attr *init_attr = params->attr;
+ struct mlx5_ib_create_qp_rss *ucmd = params->ucmd;
+ struct ib_udata *udata = params->udata;
struct mlx5_ib_ucontext *mucontext = rdma_udata_to_drv_context(
udata, struct mlx5_ib_ucontext, ibucontext);
- struct mlx5_ib_dev *dev = to_mdev(pd->device);
struct mlx5_ib_create_qp_resp resp = {};
int inlen;
int outlen;
@@ -1632,7 +1642,8 @@ static int create_rss_raw_qp_tir(struct ib_pd *pd, struct mlx5_ib_qp *qp,
u32 tdn = mucontext->tdn;
u8 lb_flag = 0;
- min_resp_len = offsetof(typeof(resp), bfreg_index) + sizeof(resp.bfreg_index);
+ min_resp_len =
+ offsetof(typeof(resp), bfreg_index) + sizeof(resp.bfreg_index);
if (udata->outlen < min_resp_len)
return -EINVAL;
@@ -1909,11 +1920,12 @@ static int get_atomic_mode(struct mlx5_ib_dev *dev,
return atomic_mode;
}
-static int create_xrc_tgt_qp(struct mlx5_ib_dev *dev,
- struct ib_qp_init_attr *attr,
- struct mlx5_ib_qp *qp, struct ib_udata *udata,
- u32 uidx)
+static int create_xrc_tgt_qp(struct mlx5_ib_dev *dev, struct mlx5_ib_qp *qp,
+ struct mlx5_create_qp_params *params)
{
+ struct ib_qp_init_attr *attr = params->attr;
+ struct ib_udata *udata = params->udata;
+ u32 uidx = params->uidx;
struct mlx5_ib_resources *devr = &dev->devr;
int inlen = MLX5_ST_SZ_BYTES(create_qp_in);
struct mlx5_core_dev *mdev = dev->mdev;
@@ -1985,11 +1997,13 @@ static int create_xrc_tgt_qp(struct mlx5_ib_dev *dev,
}
static int create_user_qp(struct mlx5_ib_dev *dev, struct ib_pd *pd,
- struct ib_qp_init_attr *init_attr,
- struct mlx5_ib_create_qp *ucmd,
- struct ib_udata *udata, struct mlx5_ib_qp *qp,
- u32 uidx)
+ struct mlx5_ib_qp *qp,
+ struct mlx5_create_qp_params *params)
{
+ struct ib_qp_init_attr *init_attr = params->attr;
+ struct mlx5_ib_create_qp *ucmd = params->ucmd;
+ struct ib_udata *udata = params->udata;
+ u32 uidx = params->uidx;
struct mlx5_ib_resources *devr = &dev->devr;
int inlen = MLX5_ST_SZ_BYTES(create_qp_in);
struct mlx5_core_dev *mdev = dev->mdev;
@@ -2173,9 +2187,11 @@ static int create_user_qp(struct mlx5_ib_dev *dev, struct ib_pd *pd,
}
static int create_kernel_qp(struct mlx5_ib_dev *dev, struct ib_pd *pd,
- struct ib_qp_init_attr *attr, struct mlx5_ib_qp *qp,
- u32 uidx)
+ struct mlx5_ib_qp *qp,
+ struct mlx5_create_qp_params *params)
{
+ struct ib_qp_init_attr *attr = params->attr;
+ u32 uidx = params->uidx;
struct mlx5_ib_resources *devr = &dev->devr;
int inlen = MLX5_ST_SZ_BYTES(create_qp_in);
struct mlx5_core_dev *mdev = dev->mdev;
@@ -2469,9 +2485,11 @@ static void destroy_qp_common(struct mlx5_ib_dev *dev, struct mlx5_ib_qp *qp,
}
static int create_dct(struct ib_pd *pd, struct mlx5_ib_qp *qp,
- struct ib_qp_init_attr *attr,
- struct mlx5_ib_create_qp *ucmd, u32 uidx)
+ struct mlx5_create_qp_params *params)
{
+ struct ib_qp_init_attr *attr = params->attr;
+ struct mlx5_ib_create_qp *ucmd = params->ucmd;
+ u32 uidx = params->uidx;
void *dctc;
qp->dct.in = kzalloc(MLX5_ST_SZ_BYTES(create_dct_in), GFP_KERNEL);
@@ -2782,16 +2800,14 @@ static size_t process_udata_size(struct ib_qp_init_attr *attr,
return min(ucmd, inlen);
}
-static int create_raw_qp(struct ib_pd *pd, struct mlx5_ib_qp *qp,
- struct ib_qp_init_attr *attr, void *ucmd,
- struct ib_udata *udata, u32 uidx)
+static int create_raw_qp(struct mlx5_ib_dev *dev, struct ib_pd *pd,
+ struct mlx5_ib_qp *qp,
+ struct mlx5_create_qp_params *params)
{
- struct mlx5_ib_dev *dev = to_mdev(pd->device);
+ if (params->is_rss_raw)
+ return create_rss_raw_qp_tir(dev, pd, qp, params);
- if (attr->rwq_ind_tbl)
- return create_rss_raw_qp_tir(pd, qp, attr, ucmd, udata);
-
- return create_user_qp(dev, pd, attr, ucmd, udata, qp, uidx);
+ return create_user_qp(dev, pd, qp, params);
}
static int check_qp_attr(struct mlx5_ib_dev *dev, struct mlx5_ib_qp *qp,
@@ -2821,60 +2837,59 @@ static int check_qp_attr(struct mlx5_ib_dev *dev, struct mlx5_ib_qp *qp,
return ret;
}
-static int get_qp_uidx(struct mlx5_ib_qp *qp, struct ib_udata *udata,
- struct mlx5_ib_create_qp *ucmd,
- struct ib_qp_init_attr *attr, u32 *uidx)
+static int get_qp_uidx(struct mlx5_ib_qp *qp,
+ struct mlx5_create_qp_params *params)
{
+ struct mlx5_ib_create_qp *ucmd = params->ucmd;
+ struct ib_udata *udata = params->udata;
struct mlx5_ib_ucontext *ucontext = rdma_udata_to_drv_context(
udata, struct mlx5_ib_ucontext, ibucontext);
- if (attr->rwq_ind_tbl)
+ if (params->is_rss_raw)
return 0;
- return get_qp_user_index(ucontext, ucmd, sizeof(*ucmd), uidx);
+ return get_qp_user_index(ucontext, ucmd, sizeof(*ucmd), ¶ms->uidx);
}
-struct ib_qp *mlx5_ib_create_qp(struct ib_pd *pd,
- struct ib_qp_init_attr *init_attr,
+struct ib_qp *mlx5_ib_create_qp(struct ib_pd *pd, struct ib_qp_init_attr *attr,
struct ib_udata *udata)
{
- u32 uidx = MLX5_IB_DEFAULT_UIDX;
+ struct mlx5_create_qp_params params = {};
struct mlx5_ib_dev *dev;
struct mlx5_ib_qp *qp;
enum ib_qp_type type;
- void *ucmd = NULL;
u16 xrcdn = 0;
int err;
dev = pd ? to_mdev(pd->device) :
- to_mdev(to_mxrcd(init_attr->xrcd)->ibxrcd.device);
+ to_mdev(to_mxrcd(attr->xrcd)->ibxrcd.device);
- err = check_qp_type(dev, init_attr, &type);
- if (err) {
- mlx5_ib_dbg(dev, "Unsupported QP type %d\n",
- init_attr->qp_type);
+ err = check_qp_type(dev, attr, &type);
+ if (err)
return ERR_PTR(err);
- }
- err = check_valid_flow(dev, pd, init_attr, udata);
+ err = check_valid_flow(dev, pd, attr, udata);
if (err)
return ERR_PTR(err);
- if (init_attr->qp_type == IB_QPT_GSI)
- return mlx5_ib_gsi_create_qp(pd, init_attr);
+ if (attr->qp_type == IB_QPT_GSI)
+ return mlx5_ib_gsi_create_qp(pd, attr);
- if (udata) {
- size_t inlen =
- process_udata_size(init_attr, udata);
+ params.udata = udata;
+ params.uidx = MLX5_IB_DEFAULT_UIDX;
+ params.attr = attr;
+ params.is_rss_raw = !!attr->rwq_ind_tbl;
- if (!inlen)
+ if (udata) {
+ params.inlen = process_udata_size(attr, udata);
+ if (!params.inlen)
return ERR_PTR(-EINVAL);
- ucmd = kzalloc(inlen, GFP_KERNEL);
- if (!ucmd)
+ params.ucmd = kzalloc(params.inlen, GFP_KERNEL);
+ if (!params.ucmd)
return ERR_PTR(-ENOMEM);
- err = ib_copy_from_udata(ucmd, udata, inlen);
+ err = ib_copy_from_udata(params.ucmd, udata, params.inlen);
if (err)
goto free_ucmd;
}
@@ -2887,50 +2902,49 @@ struct ib_qp *mlx5_ib_create_qp(struct ib_pd *pd,
qp->type = type;
if (udata) {
- err = process_vendor_flags(dev, qp, ucmd, init_attr);
+ err = process_vendor_flags(dev, qp, params.ucmd, attr);
if (err)
goto free_qp;
- err = get_qp_uidx(qp, udata, ucmd, init_attr, &uidx);
+ err = get_qp_uidx(qp, ¶ms);
if (err)
goto free_qp;
}
- err = process_create_flags(dev, qp, init_attr);
+ err = process_create_flags(dev, qp, attr);
if (err)
goto free_qp;
- err = check_qp_attr(dev, qp, init_attr);
+ err = check_qp_attr(dev, qp, attr);
if (err)
goto free_qp;
switch (qp->type) {
case IB_QPT_RAW_PACKET:
- err = create_raw_qp(pd, qp, init_attr, ucmd, udata, uidx);
+ err = create_raw_qp(dev, pd, qp, ¶ms);
break;
case MLX5_IB_QPT_DCT:
- err = create_dct(pd, qp, init_attr, ucmd, uidx);
+ err = create_dct(pd, qp, ¶ms);
break;
case IB_QPT_XRC_TGT:
- xrcdn = to_mxrcd(init_attr->xrcd)->xrcdn;
- err = create_xrc_tgt_qp(dev, init_attr, qp, udata, uidx);
+ xrcdn = to_mxrcd(attr->xrcd)->xrcdn;
+ err = create_xrc_tgt_qp(dev, qp, ¶ms);
break;
default:
if (udata)
- err = create_user_qp(dev, pd, init_attr, ucmd, udata,
- qp, uidx);
+ err = create_user_qp(dev, pd, qp, ¶ms);
else
- err = create_kernel_qp(dev, pd, init_attr, qp, uidx);
+ err = create_kernel_qp(dev, pd, qp, ¶ms);
}
if (err) {
- mlx5_ib_dbg(dev, "create_qp failed %d\n", err);
+ mlx5_ib_err(dev, "create_qp failed %d\n", err);
goto free_qp;
}
- kfree(ucmd);
+ kfree(params.ucmd);
- if (is_qp0(init_attr->qp_type))
+ if (is_qp0(attr->qp_type))
qp->ibqp.qp_num = 0;
- else if (is_qp1(init_attr->qp_type))
+ else if (is_qp1(attr->qp_type))
qp->ibqp.qp_num = 1;
else
qp->ibqp.qp_num = qp->trans_qp.base.mqp.qpn;
@@ -2942,7 +2956,7 @@ struct ib_qp *mlx5_ib_create_qp(struct ib_pd *pd,
free_qp:
kfree(qp);
free_ucmd:
- kfree(ucmd);
+ kfree(params.ucmd);
return ERR_PTR(err);
}
--
2.25.3
next prev parent reply other threads:[~2020-04-23 19:03 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-04-23 19:02 [PATCH rdma-next 00/18] Refactor mlx5_ib_create_qp (Part II) Leon Romanovsky
2020-04-23 19:02 ` [PATCH rdma-next 01/18] RDMA/mlx5: Delete unsupported QP types Leon Romanovsky
2020-04-23 19:02 ` [PATCH rdma-next 02/18] RDMA/mlx5: Store QP type in the vendor QP structure Leon Romanovsky
2020-04-23 19:02 ` [PATCH rdma-next 03/18] RDMA/mlx5: Promote RSS RAW QP attribute check in higher level Leon Romanovsky
2020-04-23 19:02 ` [PATCH rdma-next 04/18] RDMA/mlx5: Combine copy of create QP command in RSS RAW QP Leon Romanovsky
2020-04-23 19:02 ` [PATCH rdma-next 05/18] RDMA/mlx5: Remove second user copy in create_user_qp Leon Romanovsky
2020-04-23 19:02 ` [PATCH rdma-next 06/18] RDMA/mlx5: Rely on existence of udata to separate kernel/user flows Leon Romanovsky
2020-04-23 19:02 ` [PATCH rdma-next 07/18] RDMA/mlx5: Delete impossible inlen check Leon Romanovsky
2020-04-23 19:02 ` [PATCH rdma-next 08/18] RDMA/mlx5: Globally parse DEVX UID Leon Romanovsky
2020-04-23 19:02 ` [PATCH rdma-next 09/18] RDMA/mlx5: Separate XRC_TGT QP creation from common flow Leon Romanovsky
2020-04-23 19:02 ` [PATCH rdma-next 10/18] RDMA/mlx5: Separate to user/kernel create QP flows Leon Romanovsky
2020-04-23 19:02 ` [PATCH rdma-next 11/18] RDMA/mlx5: Reduce amount of duplication in QP destroy Leon Romanovsky
2020-04-23 19:02 ` Leon Romanovsky [this message]
2020-04-23 19:02 ` [PATCH rdma-next 13/18] RDMA/mlx5: Promote RSS RAW QP flags check to higher level Leon Romanovsky
2020-04-23 19:02 ` [PATCH rdma-next 14/18] RDMA/mlx5: Handle udate outlen checks in one place Leon Romanovsky
2020-04-23 19:03 ` [PATCH rdma-next 15/18] RDMA/mlx5: Copy response to the user " Leon Romanovsky
2020-04-23 19:03 ` [PATCH rdma-next 16/18] RDMA/mlx5: Remove redundant destroy QP call Leon Romanovsky
2020-04-23 19:03 ` [PATCH rdma-next 17/18] RDMA/mlx5: Consolidate into special function all create QP calls Leon Romanovsky
2020-04-23 19:03 ` [PATCH rdma-next 18/18] RDMA/mlx5: Verify that QP is created with RQ or SQ Leon Romanovsky
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