[dpdk-dev] [PATCH 04/28] bnxt: add new HWRM commands

[Ajit Khaparde <ajit.khaparde@broadcom.com>]

Add support for the following HWRM commands:
- hwrm_func_buf_rgtr:
  This command is used by the PF driver to register buffers used
  in the PF-VF communication with the HWRM. The PF driver uses this
  command to register buffers for each PF-VF channel. A parent PF may
  issue this command per child VF.

- hwrm_func_buf_unrgtr:
  This command is used by the PF driver to unregister buffers used in
  the PF-VF communication with the HWRM/firmware. The PF driver uses this
  command to unregister buffers for PF-VF communication. A parent PF may
  issue this command to unregister buffers for communication between the
  PF and a specific VF.

- hwrm_reject_fwd_resp:
  This command instructs the HWRM to reject a forwarded request and forward
  the error response of the encapsulated request to the location specified
  in the original request that is encapsulated.

- hwrm_exec_fwd_resp:
  This command instructs the firmware to execute the forwarded request and
  forward the response of the encapsulated request to the location
  specified in the original request that is encapsulated.

These commands will be used in subsequent patches.

Signed-off-by: Ajit Khaparde <ajit.khaparde@broadcom.com>
---
 drivers/net/bnxt/hsi_struct_def_dpdk.h | 298 ++++++++++++++++++++++++++++++++-
 1 file changed, 290 insertions(+), 8 deletions(-)

diff --git a/drivers/net/bnxt/hsi_struct_def_dpdk.h b/drivers/net/bnxt/hsi_struct_def_dpdk.h
index 9cb3f76..c52f309 100644
--- a/drivers/net/bnxt/hsi_struct_def_dpdk.h
+++ b/drivers/net/bnxt/hsi_struct_def_dpdk.h
@@ -74,23 +74,25 @@ struct ctx_hw_stats64 {
  * Following is the signature for HWRM message field that indicates not
  * applicable (All F's). Need to cast it the size of the field if needed.
  */
-#define HWRM_NA_SIGNATURE        ((uint32_t)(-1))
-#define HWRM_MAX_REQ_LEN	(128)  /* hwrm_func_buf_rgtr */
-#define HWRM_MAX_RESP_LEN	(176)  /* hwrm_func_qstats */
-#define HW_HASH_INDEX_SIZE      0x80    /* 7 bit indirection table index. */
-#define HW_HASH_KEY_SIZE        40
-#define HWRM_RESP_VALID_KEY	1 /* valid key for HWRM response */
+#define HWRM_NA_SIGNATURE	((uint32_t)(-1))
+#define HWRM_MAX_REQ_LEN	128	/* hwrm_func_buf_rgtr */
+#define HWRM_MAX_RESP_LEN	176	/* hwrm_func_qstats */
+#define HW_HASH_INDEX_SIZE	0x80	/* 7 bit indirection table index. */
+#define HW_HASH_KEY_SIZE	40
+#define HWRM_RESP_VALID_KEY	1	/* valid key for HWRM response */
 
 /*
  * Request types
  */
 #define HWRM_VER_GET			(UINT32_C(0x0))
+#define HWRM_FUNC_BUF_UNRGTR		(UINT32_C(0xe))
 #define HWRM_FUNC_RESET			(UINT32_C(0x11))
 #define HWRM_FUNC_QCAPS			(UINT32_C(0x15))
 #define HWRM_FUNC_QCFG			(UINT32_C(0x16))
 #define HWRM_FUNC_CFG			(UINT32_C(0x17))
 #define HWRM_FUNC_DRV_UNRGTR		(UINT32_C(0x1a))
 #define HWRM_FUNC_DRV_RGTR		(UINT32_C(0x1d))
+#define HWRM_FUNC_BUF_RGTR		(UINT32_C(0x1f))
 #define HWRM_PORT_PHY_CFG		(UINT32_C(0x20))
 #define HWRM_PORT_PHY_QCFG		(UINT32_C(0x27))
 #define HWRM_QUEUE_QPORTCFG		(UINT32_C(0x30))
@@ -112,10 +114,11 @@ struct ctx_hw_stats64 {
 #define HWRM_STAT_CTX_FREE		(UINT32_C(0xb1))
 #define HWRM_STAT_CTX_CLR_STATS		(UINT32_C(0xb3))
 #define HWRM_EXEC_FWD_RESP		(UINT32_C(0xd0))
+#define HWRM_REJECT_FWD_RESP		(UINT32_C(0xd1))
 
 /* Return Codes */
-#define HWRM_ERR_CODE_INVALID_PARAMS                      (UINT32_C(0x2))
-#define HWRM_ERR_CODE_RESOURCE_ACCESS_DENIED              (UINT32_C(0x3))
+#define HWRM_ERR_CODE_INVALID_PARAMS		(UINT32_C(0x2))
+#define HWRM_ERR_CODE_RESOURCE_ACCESS_DENIED	(UINT32_C(0x3))
 
 /* Short TX BD (16 bytes) */
 struct tx_bd_short {
@@ -1649,6 +1652,84 @@ struct hwrm_ver_get_output {
 	 */
 } __attribute__((packed));
 
+/* hwrm_func_buf_unrgtr */
+/*
+ * Description: This command is used by the PF driver to unregister buffers used
+ * in the PF-VF communication with the HWRM. The PF driver uses this command to
+ * unregister buffers for PF-VF communication. A parent PF may issue this
+ * command to unregister buffers for communication between the PF and a specific
+ * VF. If the VF ID is not valid, then this command is used to unregister
+ * buffers used for communications with all children VFs of the PF.
+ */
+/* Input (24 bytes) */
+struct hwrm_func_buf_unrgtr_input {
+	uint16_t req_type;
+	/*
+	 * This value indicates what type of request this is. The format for the
+	 * rest of the command is determined by this field.
+	 */
+	uint16_t cmpl_ring;
+	/*
+	 * This value indicates the what completion ring the request will be
+	 * optionally completed on. If the value is -1, then no CR completion
+	 * will be generated. Any other value must be a valid CR ring_id value
+	 * for this function.
+	 */
+	uint16_t seq_id;
+	/* This value indicates the command sequence number. */
+	uint16_t target_id;
+	/*
+	 * Target ID of this command. 0x0 - 0xFFF8 - Used for function ids
+	 * 0xFFF8 - 0xFFFE - Reserved for internal processors 0xFFFF - HWRM
+	 */
+	uint64_t resp_addr;
+	/*
+	 * This is the host address where the response will be written when the
+	 * request is complete. This area must be 16B aligned and must be
+	 * cleared to zero before the request is made.
+	 */
+	uint32_t enables;
+	/* This bit must be '1' for the vf_id field to be configured. */
+	#define HWRM_FUNC_BUF_UNRGTR_INPUT_ENABLES_VF_ID	(UINT32_C(0x1))
+	uint16_t vf_id;
+	/*
+	 * This value is used to identify a Virtual Function (VF). The scope of
+	 * VF ID is local within a PF.
+	 */
+	uint16_t unused_0;
+} __attribute__((packed));
+
+/* Output (16 bytes) */
+struct hwrm_func_buf_unrgtr_output {
+	uint16_t error_code;
+	/*
+	 * Pass/Fail or error type Note: receiver to verify the in parameters,
+	 * and fail the call with an error when appropriate
+	 */
+	uint16_t req_type;
+	/* This field returns the type of original request. */
+	uint16_t seq_id;
+	/* This field provides original sequence number of the command. */
+	uint16_t resp_len;
+	/*
+	 * This field is the length of the response in bytes. The last byte of
+	 * the response is a valid flag that will read as '1' when the command
+	 * has been completely written to memory.
+	 */
+	uint32_t unused_0;
+	uint8_t unused_1;
+	uint8_t unused_2;
+	uint8_t unused_3;
+	uint8_t valid;
+	/*
+	 * This field is used in Output records to indicate that the output is
+	 * completely written to RAM. This field should be read as '1' to
+	 * indicate that the output has been completely written. When writing a
+	 * command completion or response to an internal processor, the order of
+	 * writes has to be such that this field is written last.
+	 */
+} __attribute__((packed));
+
 /* hwrm_func_reset */
 /*
  * Description: This command resets a hardware function (PCIe function) and
@@ -2879,6 +2960,119 @@ struct hwrm_func_drv_rgtr_output {
 	 */
 } __attribute__((packed));
 
+/* hwrm_func_buf_rgtr */
+/*
+ * Description: This command is used by the PF driver to register buffers used
+ * in the PF-VF communication with the HWRM. The PF driver uses this command to
+ * register buffers for each PF-VF channel. A parent PF may issue this command
+ * per child VF. If VF ID is not valid, then this command is used to register
+ * buffers for all children VFs of the PF.
+ */
+/* Input (128 bytes) */
+struct hwrm_func_buf_rgtr_input {
+	uint16_t req_type;
+	/*
+	 * This value indicates what type of request this is. The format for the
+	 * rest of the command is determined by this field.
+	 */
+	uint16_t cmpl_ring;
+	/*
+	 * This value indicates the what completion ring the request will be
+	 * optionally completed on. If the value is -1, then no CR completion
+	 * will be generated. Any other value must be a valid CR ring_id value
+	 * for this function.
+	 */
+	uint16_t seq_id;
+	/* This value indicates the command sequence number. */
+	uint16_t target_id;
+	/*
+	 * Target ID of this command. 0x0 - 0xFFF8 - Used for function ids
+	 * 0xFFF8 - 0xFFFE - Reserved for internal processors 0xFFFF - HWRM
+	 */
+	uint64_t resp_addr;
+	/*
+	 * This is the host address where the response will be written when the
+	 * request is complete. This area must be 16B aligned and must be
+	 * cleared to zero before the request is made.
+	 */
+	uint32_t enables;
+	/* This bit must be '1' for the vf_id field to be configured. */
+	#define HWRM_FUNC_BUF_RGTR_INPUT_ENABLES_VF_ID		(UINT32_C(0x1))
+	/* This bit must be '1' for the err_buf_addr field to be configured. */
+	#define HWRM_FUNC_BUF_RGTR_INPUT_ENABLES_ERR_BUF_ADDR	(UINT32_C(0x2))
+	uint16_t vf_id;
+	/*
+	 * This value is used to identify a Virtual Function (VF). The scope of
+	 * VF ID is local within a PF.
+	 */
+	uint16_t req_buf_num_pages;
+	/*
+	 * This field represents the number of pages used for request buffer(s).
+	 */
+	uint16_t req_buf_page_size;
+	/* This field represents the page size used for request buffer(s). */
+	/* 16 bytes */
+	#define HWRM_FUNC_BUF_RGTR_INPUT_REQ_BUF_PAGE_SIZE_16B	(UINT32_C(0x4))
+	/* 4 Kbytes */
+	#define HWRM_FUNC_BUF_RGTR_INPUT_REQ_BUF_PAGE_SIZE_4K	(UINT32_C(0xc))
+	/* 8 Kbytes */
+	#define HWRM_FUNC_BUF_RGTR_INPUT_REQ_BUF_PAGE_SIZE_8K	(UINT32_C(0xd))
+	/* 64 Kbytes */
+	#define HWRM_FUNC_BUF_RGTR_INPUT_REQ_BUF_PAGE_SIZE_64K	(UINT32_C(0x10))
+	/* 2 Mbytes */
+	#define HWRM_FUNC_BUF_RGTR_INPUT_REQ_BUF_PAGE_SIZE_2M	(UINT32_C(0x15))
+	/* 4 Mbytes */
+	#define HWRM_FUNC_BUF_RGTR_INPUT_REQ_BUF_PAGE_SIZE_4M	(UINT32_C(0x16))
+	/* 1 Gbytes */
+	#define HWRM_FUNC_BUF_RGTR_INPUT_REQ_BUF_PAGE_SIZE_1G	(UINT32_C(0x1e))
+	uint16_t req_buf_len;
+	/* The length of the request buffer per VF in bytes. */
+	uint16_t resp_buf_len;
+	/* The length of the response buffer in bytes. */
+	uint8_t unused_0;
+	uint8_t unused_1;
+	/* This field represents the page addresses. */
+	uint64_t req_buf_page_addr[10];
+	uint64_t error_buf_addr;
+	/*
+	 * This field is used to receive the error reporting from the chipset.
+	 * Only applicable for PFs.
+	 */
+	uint64_t resp_buf_addr;
+	/* This field is used to receive the response forwarded by the HWRM. */
+} __attribute__((packed));
+
+/* Output (16 bytes) */
+struct hwrm_func_buf_rgtr_output {
+	uint16_t error_code;
+	/*
+	 * Pass/Fail or error type Note: receiver to verify the in parameters,
+	 * and fail the call with an error when appropriate
+	 */
+	uint16_t req_type;
+	/* This field returns the type of original request. */
+	uint16_t seq_id;
+	/* This field provides original sequence number of the command. */
+	uint16_t resp_len;
+	/*
+	 * This field is the length of the response in bytes. The last byte of
+	 * the response is a valid flag that will read as '1' when the command
+	 * has been completely written to memory.
+	 */
+	uint32_t unused_0;
+	uint8_t unused_1;
+	uint8_t unused_2;
+	uint8_t unused_3;
+	uint8_t valid;
+	/*
+	 * This field is used in Output records to indicate that the output is
+	 * completely written to RAM. This field should be read as '1' to
+	 * indicate that the output has been completely written. When writing a
+	 * command completion or response to an internal processor, the order of
+	 * writes has to be such that this field is written last.
+	 */
+} __attribute__((packed));
+
 /* hwrm_func_drv_unrgtr */
 /*
  * Description: This command is used by the function driver to un register with
@@ -6503,4 +6697,92 @@ struct hwrm_exec_fwd_resp_output {
 	 */
 } __attribute__((packed));
 
+
+/* hwrm_reject_fwd_resp */
+/*
+ * Description: This command is used to send an encapsulated request to the
+ * HWRM. This command instructs the HWRM to reject the request and forward the
+ * error response of the encapsulated request to the location specified in the
+ * original request that is encapsulated. The target id of this command shall be
+ * set to 0xFFFF (HWRM). The response location in this command shall be used to
+ * acknowledge the receipt of the encapsulated request and forwarding of the
+ * response.
+ */
+/* Input	(128 bytes) */
+struct hwrm_reject_fwd_resp_input {
+	uint16_t req_type;
+	/*
+	 * This value indicates what type of request this is. The format
+	 * for the rest of the command is determined by this field.
+	 */
+	uint16_t cmpl_ring;
+	/*
+	 * This value indicates the what completion ring the request
+	 * will be optionally completed on. If the value is -1, then no
+	 * CR completion will be generated. Any other value must be a
+	 * valid CR ring_id value for this function.
+	 */
+	uint16_t seq_id;
+	/* This value indicates the command sequence number. */
+	uint16_t target_id;
+	/*
+	 * Target ID of this command. 0x0 - 0xFFF8 - Used for function
+	 * ids 0xFFF8 - 0xFFFE - Reserved for internal processors 0xFFFF
+	 * - HWRM
+	 */
+	uint64_t resp_addr;
+	/*
+	 * This is the host address where the response will be written
+	 * when the request is complete. This area must be 16B aligned
+	 * and must be cleared to zero before the request is made.
+	 */
+	uint32_t encap_request[26];
+	/*
+	 * This is an encapsulated request. This request should be
+	 * rejected by the HWRM and the error response should be
+	 * provided in the response buffer inside the encapsulated
+	 * request.
+	 */
+	uint16_t encap_resp_target_id;
+	/*
+	 * This value indicates the target id of the response to the
+	 * encapsulated request. 0x0 - 0xFFF8 - Used for function ids
+	 * 0xFFF8 - 0xFFFE - Reserved for internal processors 0xFFFF -
+	 * HWRM
+	 */
+	uint16_t unused_0[3];
+} __attribute__((packed));
+
+/* Output	(16 bytes) */
+struct hwrm_reject_fwd_resp_output {
+	uint16_t error_code;
+	/*
+	 * Pass/Fail or error type Note: receiver to verify the in
+	 * parameters, and fail the call with an error when appropriate
+	 */
+	uint16_t req_type;
+	/* This field returns the type of original request. */
+	uint16_t seq_id;
+	/* This field provides original sequence number of the command. */
+	uint16_t resp_len;
+	/*
+	 * This field is the length of the response in bytes. The last
+	 * byte of the response is a valid flag that will read as '1'
+	 * when the command has been completely written to memory.
+	 */
+	uint32_t unused_0;
+	uint8_t unused_1;
+	uint8_t unused_2;
+	uint8_t unused_3;
+	uint8_t valid;
+	/*
+	 * This field is used in Output records to indicate that the
+	 * output is completely written to RAM. This field should be
+	 * read as '1' to indicate that the output has been completely
+	 * written. When writing a command completion or response to an
+	 * internal processor, the order of writes has to be such that
+	 * this field is written last.
+	 */
+} __attribute__((packed));
+
 #endif
-- 
2.10.1 (Apple Git-78)