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RDMA/rxe: Enable MW object pool

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Currently the rxe driver has a rxe_mw struct object but nothing about
memory windows is enabled. This patch turns on memory windows and some
minor cleanup.

Set device attribute in rxe.c so max_mw = MAX_MW.  Change parameters in
rxe_param.h so that MAX_MW is the same as MAX_MR.  Reduce the number of
MRs and MWs to 4K from 256K.  Add device capability bits for 2a and 2b
memory windows.  Removed RXE_MR_TYPE_MW from the rxe_mr_type enum.

Link: https://lore.kernel.org/r/20210608042552.33275-4-rpearsonhpe@gmail.com
Signed-off-by: Bob Pearson <rpearsonhpe@gmail.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
This commit is contained in:
Bob Pearson 2021-06-07 23:25:46 -05:00 committed by Jason Gunthorpe
parent 08224016ab
commit af732adfac
3 changed files with 13 additions and 8 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

1
drivers/infiniband/sw/rxe/rxe.c
View file

@ -54,6 +54,7 @@ static void rxe_init_device_param(struct rxe_dev *rxe)
rxe->attr.max_cq = RXE_MAX_CQ;
rxe->attr.max_cqe = (1 << RXE_MAX_LOG_CQE) - 1;
rxe->attr.max_mr = RXE_MAX_MR;
rxe->attr.max_mw = RXE_MAX_MW;
rxe->attr.max_pd = RXE_MAX_PD;
rxe->attr.max_qp_rd_atom = RXE_MAX_QP_RD_ATOM;
rxe->attr.max_res_rd_atom = RXE_MAX_RES_RD_ATOM;

19
drivers/infiniband/sw/rxe/rxe_param.h
View file

@ -37,7 +37,6 @@ static inline enum ib_mtu eth_mtu_int_to_enum(int mtu)
enum rxe_device_param {
RXE_MAX_MR_SIZE = -1ull,
RXE_PAGE_SIZE_CAP = 0xfffff000,
RXE_MAX_QP = 0x10000,
RXE_MAX_QP_WR = 0x4000,
RXE_DEVICE_CAP_FLAGS = IB_DEVICE_BAD_PKEY_CNTR
| IB_DEVICE_BAD_QKEY_CNTR
@ -49,7 +48,10 @@ enum rxe_device_param {
| IB_DEVICE_RC_RNR_NAK_GEN
| IB_DEVICE_SRQ_RESIZE
| IB_DEVICE_MEM_MGT_EXTENSIONS
| IB_DEVICE_ALLOW_USER_UNREG,
| IB_DEVICE_ALLOW_USER_UNREG
| IB_DEVICE_MEM_WINDOW
| IB_DEVICE_MEM_WINDOW_TYPE_2A
| IB_DEVICE_MEM_WINDOW_TYPE_2B,
RXE_MAX_SGE = 32,
RXE_MAX_WQE_SIZE = sizeof(struct rxe_send_wqe) +
sizeof(struct ib_sge) * RXE_MAX_SGE,
@ -58,7 +60,6 @@ enum rxe_device_param {
RXE_MAX_SGE_RD = 32,
RXE_MAX_CQ = 16384,
RXE_MAX_LOG_CQE = 15,
RXE_MAX_MR = 256 * 1024,
RXE_MAX_PD = 0x7ffc,
RXE_MAX_QP_RD_ATOM = 128,
RXE_MAX_RES_RD_ATOM = 0x3f000,
@ -67,7 +68,6 @@ enum rxe_device_param {
RXE_MAX_MCAST_QP_ATTACH = 56,
RXE_MAX_TOT_MCAST_QP_ATTACH = 0x70000,
RXE_MAX_AH = 100,
RXE_MAX_SRQ = 960,
RXE_MAX_SRQ_WR = 0x4000,
RXE_MIN_SRQ_WR = 1,
RXE_MAX_SRQ_SGE = 27,
@ -80,16 +80,21 @@ enum rxe_device_param {
RXE_NUM_PORT = 1,
RXE_MAX_QP = 0x10000,
RXE_MIN_QP_INDEX = 16,
RXE_MAX_QP_INDEX = 0x00020000,
RXE_MAX_SRQ = 0x00001000,
RXE_MIN_SRQ_INDEX = 0x00020001,
RXE_MAX_SRQ_INDEX = 0x00040000,
RXE_MAX_MR = 0x00001000,
RXE_MAX_MW = 0x00001000,
RXE_MIN_MR_INDEX = 0x00000001,
RXE_MAX_MR_INDEX = 0x00040000,
RXE_MIN_MW_INDEX = 0x00040001,
RXE_MAX_MW_INDEX = 0x00060000,
RXE_MAX_MR_INDEX = 0x00010000,
RXE_MIN_MW_INDEX = 0x00010001,
RXE_MAX_MW_INDEX = 0x00020000,
RXE_MAX_PKT_PER_ACK = 64,
RXE_MAX_UNACKED_PSNS = 128,

1
drivers/infiniband/sw/rxe/rxe_verbs.h
View file

@ -276,7 +276,6 @@ enum rxe_mr_type {
RXE_MR_TYPE_NONE,
RXE_MR_TYPE_DMA,
RXE_MR_TYPE_MR,
RXE_MR_TYPE_MW,
};
#define RXE_BUF_PER_MAP (PAGE_SIZE / sizeof(struct rxe_phys_buf))