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RDMA/irdma: Use HW specific minimum WQ size

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HW GEN1 and GEN2 have different min WQ sizes but they are
currently set to the same value.

Use a gen specific attribute min_hw_wq_size and extend ABI to
pass it to user-space.

Signed-off-by: Sindhu Devale <sindhu.devale@intel.com>
Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com>
Link: https://lore.kernel.org/r/20230725155525.1081-3-shiraz.saleem@intel.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
This commit is contained in:
Sindhu Devale 2023-07-25 10:55:25 -05:00 committed by Leon Romanovsky
parent 3a84987204
commit 72d422c246
9 changed files with 19 additions and 5 deletions
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1
drivers/infiniband/hw/irdma/i40iw_hw.c
View file

@ -254,5 +254,6 @@ void i40iw_init_hw(struct irdma_sc_dev *dev)
dev->hw_attrs.max_stat_idx = IRDMA_HW_STAT_INDEX_MAX_GEN_1;
dev->hw_attrs.max_hw_outbound_msg_size = I40IW_MAX_OUTBOUND_MSG_SIZE;
dev->hw_attrs.max_hw_inbound_msg_size = I40IW_MAX_INBOUND_MSG_SIZE;
dev->hw_attrs.uk_attrs.min_hw_wq_size = I40IW_MIN_WQ_SIZE;
dev->hw_attrs.max_qp_wr = I40IW_MAX_QP_WRS;
}

2
drivers/infiniband/hw/irdma/i40iw_hw.h
View file

@ -140,11 +140,11 @@ enum i40iw_device_caps_const {
I40IW_MAX_CQ_SIZE = 1048575,
I40IW_MAX_OUTBOUND_MSG_SIZE = 2147483647,
I40IW_MAX_INBOUND_MSG_SIZE = 2147483647,
I40IW_MIN_WQ_SIZE = 4 /* WQEs */,
};
#define I40IW_QP_WQE_MIN_SIZE 32
#define I40IW_QP_WQE_MAX_SIZE 128
#define I40IW_QP_SW_MIN_WQSIZE 4
#define I40IW_MAX_RQ_WQE_SHIFT 2
#define I40IW_MAX_QUANTA_PER_WR 2

1
drivers/infiniband/hw/irdma/icrdma_hw.c
View file

@ -195,6 +195,7 @@ void icrdma_init_hw(struct irdma_sc_dev *dev)
dev->hw_attrs.max_stat_inst = ICRDMA_MAX_STATS_COUNT;
dev->hw_attrs.max_stat_idx = IRDMA_HW_STAT_INDEX_MAX_GEN_2;
dev->hw_attrs.uk_attrs.min_hw_wq_size = ICRDMA_MIN_WQ_SIZE;
dev->hw_attrs.uk_attrs.max_hw_sq_chunk = IRDMA_MAX_QUANTA_PER_WR;
dev->hw_attrs.uk_attrs.feature_flags |= IRDMA_FEATURE_RTS_AE |
IRDMA_FEATURE_CQ_RESIZE;

1
drivers/infiniband/hw/irdma/icrdma_hw.h
View file

@ -64,6 +64,7 @@ enum icrdma_device_caps_const {
ICRDMA_MAX_IRD_SIZE = 127,
ICRDMA_MAX_ORD_SIZE = 255,
ICRDMA_MIN_WQ_SIZE = 8 /* WQEs */,
};

1
drivers/infiniband/hw/irdma/irdma.h
View file

@ -119,6 +119,7 @@ struct irdma_uk_attrs {
u32 min_hw_cq_size;
u32 max_hw_cq_size;
u16 max_hw_sq_chunk;
u16 min_hw_wq_size;
u8 hw_rev;
};

12
drivers/infiniband/hw/irdma/uk.c
View file

@ -1349,10 +1349,12 @@ void irdma_get_wqe_shift(struct irdma_uk_attrs *uk_attrs, u32 sge,
int irdma_get_sqdepth(struct irdma_uk_attrs *uk_attrs, u32 sq_size, u8 shift,
u32 *sqdepth)
{
u32 min_size = (u32)uk_attrs->min_hw_wq_size << shift;
*sqdepth = irdma_qp_round_up((sq_size << shift) + IRDMA_SQ_RSVD);
if (*sqdepth < (IRDMA_QP_SW_MIN_WQSIZE << shift))
*sqdepth = IRDMA_QP_SW_MIN_WQSIZE << shift;
if (*sqdepth < min_size)
*sqdepth = min_size;
else if (*sqdepth > uk_attrs->max_hw_wq_quanta)
return -EINVAL;
@ -1369,10 +1371,12 @@ int irdma_get_sqdepth(struct irdma_uk_attrs *uk_attrs, u32 sq_size, u8 shift,
int irdma_get_rqdepth(struct irdma_uk_attrs *uk_attrs, u32 rq_size, u8 shift,
u32 *rqdepth)
{
u32 min_size = (u32)uk_attrs->min_hw_wq_size << shift;
*rqdepth = irdma_qp_round_up((rq_size << shift) + IRDMA_RQ_RSVD);
if (*rqdepth < (IRDMA_QP_SW_MIN_WQSIZE << shift))
*rqdepth = IRDMA_QP_SW_MIN_WQSIZE << shift;
if (*rqdepth < min_size)
*rqdepth = min_size;
else if (*rqdepth > uk_attrs->max_hw_rq_quanta)
return -EINVAL;

1
drivers/infiniband/hw/irdma/user.h
View file

@ -85,6 +85,7 @@ enum irdma_device_caps_const {
IRDMA_Q2_BUF_SIZE = 256,
IRDMA_QP_CTX_SIZE = 256,
IRDMA_MAX_PDS = 262144,
IRDMA_MIN_WQ_SIZE_GEN2 = 8,
};
enum irdma_addressing_type {

2
drivers/infiniband/hw/irdma/verbs.c
View file

@ -330,6 +330,8 @@ static int irdma_alloc_ucontext(struct ib_ucontext *uctx,
uresp.min_hw_cq_size = uk_attrs->min_hw_cq_size;
uresp.hw_rev = uk_attrs->hw_rev;
uresp.comp_mask |= IRDMA_ALLOC_UCTX_USE_RAW_ATTR;
uresp.min_hw_wq_size = uk_attrs->min_hw_wq_size;
uresp.comp_mask |= IRDMA_ALLOC_UCTX_MIN_HW_WQ_SIZE;
if (ib_copy_to_udata(udata, &uresp,
min(sizeof(uresp), udata->outlen))) {
rdma_user_mmap_entry_remove(ucontext->db_mmap_entry);

3
include/uapi/rdma/irdma-abi.h
View file

@ -24,6 +24,7 @@ enum irdma_memreg_type {
enum {
IRDMA_ALLOC_UCTX_USE_RAW_ATTR = 1 << 0,
IRDMA_ALLOC_UCTX_MIN_HW_WQ_SIZE = 1 << 1,
};
struct irdma_alloc_ucontext_req {
@ -52,6 +53,8 @@ struct irdma_alloc_ucontext_resp {
__u8 hw_rev;
__u8 rsvd2;
__aligned_u64 comp_mask;
__u16 min_hw_wq_size;
__u8 rsvd3[6];
};
struct irdma_alloc_pd_resp {