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RDMA/bnxt_re: Fix incorrect DB offset calculation 

To support host systems with non 4K page size, l2_db_size shall be
calculated with 4096 instead of PAGE_SIZE. Also, supply the host page size
to FW during initialization.

Signed-off-by: Devesh Sharma <devesh.sharma@broadcom.com>
Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
This commit is contained in:
Devesh Sharma 2018-02-26 01:51:38 -08:00 committed by Jason Gunthorpe
parent a45bc17b36
commit c354dff00d
4 changed files with 32 additions and 3 deletions
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6
drivers/infiniband/hw/bnxt_re/qplib_rcfw.c
View File

@ -460,7 +460,11 @@ int bnxt_qplib_init_rcfw(struct bnxt_qplib_rcfw *rcfw,
int rc;
RCFW_CMD_PREP(req, INITIALIZE_FW, cmd_flags);
/* Supply (log-base-2-of-host-page-size - base-page-shift)
* to bono to adjust the doorbell page sizes.
*/
req.log2_dbr_pg_size = cpu_to_le16(PAGE_SHIFT -
RCFW_DBR_BASE_PAGE_SHIFT);
/*
* VFs need not setup the HW context area, PF
* shall setup this area for VF. Skipping the

1
drivers/infiniband/hw/bnxt_re/qplib_rcfw.h
View File

@ -49,6 +49,7 @@
#define RCFW_COMM_SIZE 0x104
#define RCFW_DBR_PCI_BAR_REGION 2
#define RCFW_DBR_BASE_PAGE_SHIFT 12
#define RCFW_CMD_PREP(req, CMD, cmd_flags) \
do { \

3
drivers/infiniband/hw/bnxt_re/qplib_sp.c
View File

@ -139,7 +139,8 @@ int bnxt_qplib_get_dev_attr(struct bnxt_qplib_rcfw *rcfw,
attr->max_pkey = le32_to_cpu(sb->max_pkeys);
attr->max_inline_data = le32_to_cpu(sb->max_inline_data);
attr->l2_db_size = (sb->l2_db_space_size + 1) * PAGE_SIZE;
attr->l2_db_size = (sb->l2_db_space_size + 1) *
(0x01 << RCFW_DBR_BASE_PAGE_SHIFT);
attr->max_sgid = le32_to_cpu(sb->max_gid);
bnxt_qplib_query_version(rcfw, attr->fw_ver);

25
drivers/infiniband/hw/bnxt_re/roce_hsi.h
View File

@ -1761,7 +1761,30 @@ struct cmdq_initialize_fw {
#define CMDQ_INITIALIZE_FW_TIM_PG_SIZE_PG_2M (0x3UL << 4)
#define CMDQ_INITIALIZE_FW_TIM_PG_SIZE_PG_8M (0x4UL << 4)
#define CMDQ_INITIALIZE_FW_TIM_PG_SIZE_PG_1G (0x5UL << 4)
__le16 reserved16;
/* This value is (log-base-2-of-DBR-page-size - 12).
* 0 for 4KB. HW supported values are enumerated below.
*/
__le16 log2_dbr_pg_size;
#define CMDQ_INITIALIZE_FW_LOG2_DBR_PG_SIZE_MASK 0xfUL
#define CMDQ_INITIALIZE_FW_LOG2_DBR_PG_SIZE_SFT 0
#define CMDQ_INITIALIZE_FW_LOG2_DBR_PG_SIZE_PG_4K 0x0UL
#define CMDQ_INITIALIZE_FW_LOG2_DBR_PG_SIZE_PG_8K 0x1UL
#define CMDQ_INITIALIZE_FW_LOG2_DBR_PG_SIZE_PG_16K 0x2UL
#define CMDQ_INITIALIZE_FW_LOG2_DBR_PG_SIZE_PG_32K 0x3UL
#define CMDQ_INITIALIZE_FW_LOG2_DBR_PG_SIZE_PG_64K 0x4UL
#define CMDQ_INITIALIZE_FW_LOG2_DBR_PG_SIZE_PG_128K 0x5UL
#define CMDQ_INITIALIZE_FW_LOG2_DBR_PG_SIZE_PG_256K 0x6UL
#define CMDQ_INITIALIZE_FW_LOG2_DBR_PG_SIZE_PG_512K 0x7UL
#define CMDQ_INITIALIZE_FW_LOG2_DBR_PG_SIZE_PG_1M 0x8UL
#define CMDQ_INITIALIZE_FW_LOG2_DBR_PG_SIZE_PG_2M 0x9UL
#define CMDQ_INITIALIZE_FW_LOG2_DBR_PG_SIZE_PG_4M 0xaUL
#define CMDQ_INITIALIZE_FW_LOG2_DBR_PG_SIZE_PG_8M 0xbUL
#define CMDQ_INITIALIZE_FW_LOG2_DBR_PG_SIZE_PG_16M 0xcUL
#define CMDQ_INITIALIZE_FW_LOG2_DBR_PG_SIZE_PG_32M 0xdUL
#define CMDQ_INITIALIZE_FW_LOG2_DBR_PG_SIZE_PG_64M 0xeUL
#define CMDQ_INITIALIZE_FW_LOG2_DBR_PG_SIZE_PG_128M 0xfUL
#define CMDQ_INITIALIZE_FW_LOG2_DBR_PG_SIZE_LAST \
CMDQ_INITIALIZE_FW_LOG2_DBR_PG_SIZE_PG_128M
__le64 qpc_page_dir;
__le64 mrw_page_dir;
__le64 srq_page_dir;