Commit 3b72946b authored by Kashyap Desai's avatar Kashyap Desai Committed by Leon Romanovsky
Browse files

RDMA/bnxt_re: Add support for querying HW contexts 



Implements support for querying the hardware resource
contexts. This raw data can be used for the debugging
of the field issues.

Signed-off-by: default avatarKashyap Desai <kashyap.desai@broadcom.com>
Signed-off-by: default avatarSelvin Xavier <selvin.xavier@broadcom.com>
Link: https://patch.msgid.link/1730428483-17841-3-git-send-email-selvin.xavier@broadcom.com


Signed-off-by: default avatarLeon Romanovsky <leon@kernel.org>
parent 7363eb76

drivers/infiniband/hw/bnxt_re/bnxt_re.h

+19 −0
Original line number Diff line number Diff line
@@ -247,4 +247,23 @@ static inline void bnxt_re_set_pacing_dev_state(struct bnxt_re_dev *rdev) 
	rdev->qplib_res.pacing_data->dev_err_state =

		test_bit(BNXT_RE_FLAG_ERR_DEVICE_DETACHED, &rdev->flags);

}



static inline int bnxt_re_read_context_allowed(struct bnxt_re_dev *rdev)

{

	if (!bnxt_qplib_is_chip_gen_p5_p7(rdev->chip_ctx) ||

	    rdev->rcfw.res->cctx->hwrm_intf_ver < HWRM_VERSION_READ_CTX)

		return -EOPNOTSUPP;

	return 0;

}



#define BNXT_RE_CONTEXT_TYPE_QPC_SIZE_P5	1088

#define BNXT_RE_CONTEXT_TYPE_CQ_SIZE_P5		128

#define BNXT_RE_CONTEXT_TYPE_MRW_SIZE_P5	128

#define BNXT_RE_CONTEXT_TYPE_SRQ_SIZE_P5	192



#define BNXT_RE_CONTEXT_TYPE_QPC_SIZE_P7	1088

#define BNXT_RE_CONTEXT_TYPE_CQ_SIZE_P7		192

#define BNXT_RE_CONTEXT_TYPE_MRW_SIZE_P7	192

#define BNXT_RE_CONTEXT_TYPE_SRQ_SIZE_P7	192



#endif

drivers/infiniband/hw/bnxt_re/qplib_rcfw.h

+2 −0
Original line number Diff line number Diff line
@@ -131,6 +131,8 @@ static inline u32 bnxt_qplib_set_cmd_slots(struct cmdq_base *req) 
#define RCFW_CMD_IS_BLOCKING		0x8000



#define HWRM_VERSION_DEV_ATTR_MAX_DPI  0x1000A0000000DULL

/* HWRM version 1.10.3.18 */

#define HWRM_VERSION_READ_CTX           0x1000A00030012



/* Crsq buf is 1024-Byte */

struct bnxt_qplib_crsbe {

drivers/infiniband/hw/bnxt_re/qplib_sp.c

+35 −0
Original line number Diff line number Diff line
@@ -972,3 +972,38 @@ int bnxt_qplib_modify_cc(struct bnxt_qplib_res *res, 
	rc = bnxt_qplib_rcfw_send_message(res->rcfw, &msg);

	return rc;

}



int bnxt_qplib_read_context(struct bnxt_qplib_rcfw *rcfw, u8 res_type,

			    u32 xid, u32 resp_size, void *resp_va)

{

	struct creq_read_context resp = {};

	struct bnxt_qplib_cmdqmsg msg = {};

	struct cmdq_read_context req = {};

	struct bnxt_qplib_rcfw_sbuf sbuf;

	int rc;



	sbuf.size = resp_size;

	sbuf.sb = dma_alloc_coherent(&rcfw->pdev->dev, sbuf.size,

				     &sbuf.dma_addr, GFP_KERNEL);

	if (!sbuf.sb)

		return -ENOMEM;



	bnxt_qplib_rcfw_cmd_prep((struct cmdq_base *)&req,

				 CMDQ_BASE_OPCODE_READ_CONTEXT, sizeof(req));

	req.resp_addr = cpu_to_le64(sbuf.dma_addr);

	req.resp_size = resp_size / BNXT_QPLIB_CMDQE_UNITS;



	req.xid = cpu_to_le32(xid);

	req.type = res_type;



	bnxt_qplib_fill_cmdqmsg(&msg, &req, &resp, &sbuf, sizeof(req),

				sizeof(resp), 0);

	rc = bnxt_qplib_rcfw_send_message(rcfw, &msg);

	if (rc)

		goto free_mem;



	memcpy(resp_va, sbuf.sb, resp_size);

free_mem:

	dma_free_coherent(&rcfw->pdev->dev, sbuf.size, sbuf.sb, sbuf.dma_addr);

	return rc;

}

drivers/infiniband/hw/bnxt_re/qplib_sp.h

+2 −0
Original line number Diff line number Diff line
@@ -352,6 +352,8 @@ int bnxt_qplib_qext_stat(struct bnxt_qplib_rcfw *rcfw, u32 fid, 
			 struct bnxt_qplib_ext_stat *estat);

int bnxt_qplib_modify_cc(struct bnxt_qplib_res *res,

			 struct bnxt_qplib_cc_param *cc_param);

int bnxt_qplib_read_context(struct bnxt_qplib_rcfw *rcfw, u8 type, u32 xid,

			    u32 resp_size, void *resp_va);



#define BNXT_VAR_MAX_WQE       4352

#define BNXT_VAR_MAX_SLOT_ALIGN 256

drivers/infiniband/hw/bnxt_re/roce_hsi.h

+40 −0
Original line number Diff line number Diff line
@@ -2265,6 +2265,46 @@ struct creq_set_func_resources_resp { 
	u8	reserved48[6];

};



/* cmdq_read_context (size:192b/24B) */

struct cmdq_read_context {

	u8	opcode;

	#define CMDQ_READ_CONTEXT_OPCODE_READ_CONTEXT 0x85UL

	#define CMDQ_READ_CONTEXT_OPCODE_LAST        CMDQ_READ_CONTEXT_OPCODE_READ_CONTEXT

	u8	cmd_size;

	__le16	flags;

	__le16	cookie;

	u8	resp_size;

	u8	reserved8;

	__le64	resp_addr;

	__le32	xid;

	u8	type;

	#define CMDQ_READ_CONTEXT_TYPE_QPC 0x0UL

	#define CMDQ_READ_CONTEXT_TYPE_CQ  0x1UL

	#define CMDQ_READ_CONTEXT_TYPE_MRW 0x2UL

	#define CMDQ_READ_CONTEXT_TYPE_SRQ 0x3UL

	#define CMDQ_READ_CONTEXT_TYPE_LAST CMDQ_READ_CONTEXT_TYPE_SRQ

	u8	unused_0[3];

};



/* creq_read_context (size:128b/16B) */

struct creq_read_context {

	u8	type;

	#define CREQ_READ_CONTEXT_TYPE_MASK    0x3fUL

	#define CREQ_READ_CONTEXT_TYPE_SFT     0

	#define CREQ_READ_CONTEXT_TYPE_QP_EVENT  0x38UL

	#define CREQ_READ_CONTEXT_TYPE_LAST     CREQ_READ_CONTEXT_TYPE_QP_EVENT

	u8	status;

	__le16	cookie;

	__le32	reserved32;

	u8	v;

	#define CREQ_READ_CONTEXT_V     0x1UL

	u8	event;

	#define CREQ_READ_CONTEXT_EVENT_READ_CONTEXT 0x85UL

	#define CREQ_READ_CONTEXT_EVENT_LAST        CREQ_READ_CONTEXT_EVENT_READ_CONTEXT

	__le16	reserved16;

	__le32	reserved_32;

};



/* cmdq_map_tc_to_cos (size:192b/24B) */

struct cmdq_map_tc_to_cos {

	u8	opcode;