From: Ajit Khaparde <ajit.khapa...@broadcom.com>
Add HWRM API calls to allocate and free TX, RX and Completion rings
in the hardware along with the associated structs and definitions.
As mentioned earlier, a completion ring is used by the Ethernet
controller to provide the status of transmitted & received packets,
report errors, status changes to the host software.
v4:
Address review comments.
Signed-off-by: Ajit Khaparde <ajit.khaparde at broadcom.com>
Reviewed-by: David Christensen <david.christensen at broadcom.com>
Signed-off-by: Stephen Hurd <stephen.hurd at broadcom.com>
---
drivers/net/bnxt/bnxt_hwrm.c | 108 ++++++++++++
drivers/net/bnxt/bnxt_hwrm.h | 7 +
drivers/net/bnxt/hsi_struct_def_dpdk.h | 305 +++++++++++++++++++++++++++++++++
3 files changed, 420 insertions(+)
diff --git a/drivers/net/bnxt/bnxt_hwrm.c b/drivers/net/bnxt/bnxt_hwrm.c
index 5d0fbf1..6152856 100644
--- a/drivers/net/bnxt/bnxt_hwrm.c
+++ b/drivers/net/bnxt/bnxt_hwrm.c
@@ -504,6 +504,114 @@ int bnxt_hwrm_queue_qportcfg(struct bnxt *bp)
return rc;
}
+int bnxt_hwrm_ring_alloc(struct bnxt *bp,
+ struct bnxt_ring_struct *ring,
+ uint32_t ring_type, uint32_t map_index,
+ uint32_t stats_ctx_id)
+{
+ int rc = 0;
+ struct hwrm_ring_alloc_input req = {.req_type = 0 };
+ struct hwrm_ring_alloc_output *resp = bp->hwrm_cmd_resp_addr;
+
+ HWRM_PREP(req, RING_ALLOC, -1, resp);
+
+ req.enables = rte_cpu_to_le_32(0);
+
+ req.page_tbl_addr = rte_cpu_to_le_64(ring->bd_dma);
+ req.fbo = rte_cpu_to_le_32(0);
+ /* Association of ring index with doorbell index */
+ req.logical_id = rte_cpu_to_le_16(map_index);
+
+ switch (ring_type) {
+ case HWRM_RING_ALLOC_INPUT_RING_TYPE_TX:
+ req.queue_id = bp->cos_queue[0].id;
+ case HWRM_RING_ALLOC_INPUT_RING_TYPE_RX:
+ req.ring_type = ring_type;
+ req.cmpl_ring_id =
+ rte_cpu_to_le_16(bp->grp_info[map_index].cp_fw_ring_id);
+ req.length = rte_cpu_to_le_32(ring->ring_size);
+ req.stat_ctx_id = rte_cpu_to_le_16(stats_ctx_id);
+ req.enables = rte_cpu_to_le_32(rte_le_to_cpu_32(req.enables) |
+ HWRM_RING_ALLOC_INPUT_ENABLES_STAT_CTX_ID_VALID);
+ break;
+ case HWRM_RING_ALLOC_INPUT_RING_TYPE_CMPL:
+ req.ring_type = ring_type;
+ req.int_mode = HWRM_RING_ALLOC_INPUT_INT_MODE_POLL;
+ req.length = rte_cpu_to_le_32(ring->ring_size);
+ break;
+ default:
+ RTE_LOG(ERR, PMD, "hwrm alloc invalid ring type %d\n",
+ ring_type);
+ return -1;
+ }
+
+ rc = bnxt_hwrm_send_message(bp, &req, sizeof(req));
+
+ if (rc || resp->error_code) {
+ if (rc == 0 && resp->error_code)
+ rc = rte_le_to_cpu_16(resp->error_code);
+ switch (ring_type) {
+ case HWRM_RING_FREE_INPUT_RING_TYPE_CMPL:
+ RTE_LOG(ERR, PMD,
+ "hwrm_ring_alloc cp failed. rc:%d\n", rc);
+ return rc;
+ case HWRM_RING_FREE_INPUT_RING_TYPE_RX:
+ RTE_LOG(ERR, PMD,
+ "hwrm_ring_alloc rx failed. rc:%d\n", rc);
+ return rc;
+ case HWRM_RING_FREE_INPUT_RING_TYPE_TX:
+ RTE_LOG(ERR, PMD,
+ "hwrm_ring_alloc tx failed. rc:%d\n", rc);
+ return rc;
+ default:
+ RTE_LOG(ERR, PMD, "Invalid ring. rc:%d\n", rc);
+ return rc;
+ }
+ }
+
+ ring->fw_ring_id = rte_le_to_cpu_16(resp->ring_id);
+ return rc;
+}
+
+int bnxt_hwrm_ring_free(struct bnxt *bp,
+ struct bnxt_ring_struct *ring, uint32_t ring_type)
+{
+ int rc;
+ struct hwrm_ring_free_input req = {.req_type = 0 };
+ struct hwrm_ring_free_output *resp = bp->hwrm_cmd_resp_addr;
+
+ HWRM_PREP(req, RING_FREE, -1, resp);
+
+ req.ring_type = ring_type;
+ req.ring_id = rte_cpu_to_le_16(ring->fw_ring_id);
+
+ rc = bnxt_hwrm_send_message(bp, &req, sizeof(req));
+
+ if (rc || resp->error_code) {
+ if (rc == 0 && resp->error_code)
+ rc = rte_le_to_cpu_16(resp->error_code);
+
+ switch (ring_type) {
+ case HWRM_RING_FREE_INPUT_RING_TYPE_CMPL:
+ RTE_LOG(ERR, PMD, "hwrm_ring_free cp failed. rc:%d\n",
+ rc);
+ return rc;
+ case HWRM_RING_FREE_INPUT_RING_TYPE_RX:
+ RTE_LOG(ERR, PMD, "hwrm_ring_free rx failed. rc:%d\n",
+ rc);
+ return rc;
+ case HWRM_RING_FREE_INPUT_RING_TYPE_TX:
+ RTE_LOG(ERR, PMD, "hwrm_ring_free tx failed. rc:%d\n",
+ rc);
+ return rc;
+ default:
+ RTE_LOG(ERR, PMD, "Invalid ring, rc:%d\n", rc);
+ return rc;
+ }
+ }
+ return 0;
+}
+
int bnxt_hwrm_stat_clear(struct bnxt *bp, struct bnxt_cp_ring_info *cpr)
{
int rc = 0;
diff --git a/drivers/net/bnxt/bnxt_hwrm.h b/drivers/net/bnxt/bnxt_hwrm.h
index f41361e..e4fc243 100644
--- a/drivers/net/bnxt/bnxt_hwrm.h
+++ b/drivers/net/bnxt/bnxt_hwrm.h
@@ -58,6 +58,13 @@ int bnxt_hwrm_func_driver_unregister(struct bnxt *bp,
uint32_t flags);
int bnxt_hwrm_queue_qportcfg(struct bnxt *bp);
+int bnxt_hwrm_ring_alloc(struct bnxt *bp,
+ struct bnxt_ring_struct *ring,
+ uint32_t ring_type, uint32_t map_index,
+ uint32_t stats_ctx_id);
+int bnxt_hwrm_ring_free(struct bnxt *bp,
+ struct bnxt_ring_struct *ring, uint32_t ring_type);
+
int bnxt_hwrm_stat_clear(struct bnxt *bp, struct bnxt_cp_ring_info *cpr);
int bnxt_hwrm_stat_ctx_alloc(struct bnxt *bp,
struct bnxt_cp_ring_info *cpr, unsigned int idx);
diff --git a/drivers/net/bnxt/hsi_struct_def_dpdk.h
b/drivers/net/bnxt/hsi_struct_def_dpdk.h
index 28362c9..e6280b6 100644
--- a/drivers/net/bnxt/hsi_struct_def_dpdk.h
+++ b/drivers/net/bnxt/hsi_struct_def_dpdk.h
@@ -93,6 +93,8 @@ struct ctx_hw_stats64 {
#define HWRM_VNIC_FREE (UINT32_C(0x41))
#define HWRM_VNIC_CFG (UINT32_C(0x42))
#define HWRM_VNIC_RSS_CFG (UINT32_C(0x46))
+#define HWRM_RING_ALLOC (UINT32_C(0x50))
+#define HWRM_RING_FREE (UINT32_C(0x51))
#define HWRM_VNIC_RSS_COS_LB_CTX_ALLOC (UINT32_C(0x70))
#define HWRM_VNIC_RSS_COS_LB_CTX_FREE (UINT32_C(0x71))
#define HWRM_CFA_L2_FILTER_ALLOC (UINT32_C(0x90))
@@ -3184,6 +3186,309 @@ struct hwrm_queue_qportcfg_input {
uint16_t unused_0;
} __attribute__((packed));
+/* hwrm_ring_alloc */
+/*
+ * Description: This command allocates and does basic preparation for a ring.
+ */
+
+/* Input (80 bytes) */
+struct hwrm_ring_alloc_input {
+ /*
+ * This value indicates what type of request this is. The format for the
+ * rest of the command is determined by this field.
+ */
+ uint16_t req_type;
+
+ /*
+ * 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 cmpl_ring;
+
+ /* This value indicates the command sequence number. */
+ uint16_t seq_id;
+
+ /*
+ * Target ID of this command. 0x0 - 0xFFF8 - Used for function ids
+ * 0xFFF8 - 0xFFFE - Reserved for internal processors 0xFFFF - HWRM
+ */
+ uint16_t target_id;
+
+ /*
+ * 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.
+ */
+ uint64_t resp_addr;
+
+ /* This bit must be '1' for the Reserved1 field to be configured. */
+ #define HWRM_RING_ALLOC_INPUT_ENABLES_RESERVED1 UINT32_C(0x1)
+ /* This bit must be '1' for the Reserved2 field to be configured. */
+ #define HWRM_RING_ALLOC_INPUT_ENABLES_RESERVED2 UINT32_C(0x2)
+ /* This bit must be '1' for the Reserved3 field to be configured. */
+ #define HWRM_RING_ALLOC_INPUT_ENABLES_RESERVED3 UINT32_C(0x4)
+ /*
+ * This bit must be '1' for the stat_ctx_id_valid field to be
+ * configured.
+ */
+ #define HWRM_RING_ALLOC_INPUT_ENABLES_STAT_CTX_ID_VALID UINT32_C(0x8)
+ /* This bit must be '1' for the Reserved4 field to be configured. */
+ #define HWRM_RING_ALLOC_INPUT_ENABLES_RESERVED4 UINT32_C(0x10)
+ /* This bit must be '1' for the max_bw_valid field to be configured. */
+ #define HWRM_RING_ALLOC_INPUT_ENABLES_MAX_BW_VALID UINT32_C(0x20)
+ uint32_t enables;
+
+ /* Ring Type. */
+ /* Completion Ring (CR) */
+ #define HWRM_RING_ALLOC_INPUT_RING_TYPE_CMPL (UINT32_C(0x0) << 0)
+ /* TX Ring (TR) */
+ #define HWRM_RING_ALLOC_INPUT_RING_TYPE_TX (UINT32_C(0x1) << 0)
+ /* RX Ring (RR) */
+ #define HWRM_RING_ALLOC_INPUT_RING_TYPE_RX (UINT32_C(0x2) << 0)
+ uint8_t ring_type;
+
+ uint8_t unused_0;
+ uint16_t unused_1;
+
+ /* This value is a pointer to the page table for the Ring. */
+ uint64_t page_tbl_addr;
+
+ /* First Byte Offset of the first entry in the first page. */
+ uint32_t fbo;
+
+ /*
+ * Actual page size in 2^page_size. The supported range is increments in
+ * powers of 2 from 16 bytes to 1GB. - 4 = 16 B Page size is 16 B. - 12
+ * = 4 KB Page size is 4 KB. - 13 = 8 KB Page size is 8 KB. - 16 = 64 KB
+ * Page size is 64 KB. - 22 = 2 MB Page size is 2 MB. - 23 = 4 MB Page
+ * size is 4 MB. - 31 = 1 GB Page size is 1 GB.
+ */
+ uint8_t page_size;
+
+ /*
+ * This value indicates the depth of page table. For this version of the
+ * specification, value other than 0 or 1 shall be considered as an
+ * invalid value. When the page_tbl_depth = 0, then it is treated as a
+ * special case with the following. 1. FBO and page size fields are not
+ * valid. 2. page_tbl_addr is the physical address of the first element
+ * of the ring.
+ */
+ uint8_t page_tbl_depth;
+
+ uint8_t unused_2;
+ uint8_t unused_3;
+
+ /*
+ * Number of 16B units in the ring. Minimum size for a ring is 16 16B
+ * entries.
+ */
+ uint32_t length;
+
+ /*
+ * Logical ring number for the ring to be allocated. This value
+ * determines the position in the doorbell area where the update to the
+ * ring will be made. For completion rings, this value is also the MSI-X
+ * vector number for the function the completion ring is associated
+ * with.
+ */
+ uint16_t logical_id;
+
+ /*
+ * This field is used only when ring_type is a TX ring. This value
+ * indicates what completion ring the TX ring is associated with.
+ */
+ uint16_t cmpl_ring_id;
+
+ /*
+ * This field is used only when ring_type is a TX ring. This value
+ * indicates what CoS queue the TX ring is associated with.
+ */
+ uint16_t queue_id;
+
+ uint8_t unused_4;
+ uint8_t unused_5;
+
+ /* This field is reserved for the future use. It shall be set to 0. */
+ uint32_t reserved1;
+ /* This field is reserved for the future use. It shall be set to 0. */
+ uint16_t reserved2;
+
+ uint8_t unused_6;
+ uint8_t unused_7;
+ /* This field is reserved for the future use. It shall be set to 0. */
+ uint32_t reserved3;
+
+ /*
+ * This field is used only when ring_type is a TX ring. This input
+ * indicates what statistics context this ring should be associated
+ * with.
+ */
+ uint32_t stat_ctx_id;
+
+ /* This field is reserved for the future use. It shall be set to 0. */
+ uint32_t reserved4;
+
+ /*
+ * This field is used only when ring_type is a TX ring. Maximum BW
+ * allocated to this TX ring in Mbps. The HWRM will translate this value
+ * into byte counter and time interval used for this ring inside the
+ * device.
+ */
+ uint32_t max_bw;
+
+ /*
+ * This field is used only when ring_type is a Completion ring. This
+ * value indicates what interrupt mode should be used on this completion
+ * ring. Note: In the legacy interrupt mode, no more than 16 completion
+ * rings are allowed.
+ */
+ /* Legacy INTA */
+ #define HWRM_RING_ALLOC_INPUT_INT_MODE_LEGACY (UINT32_C(0x0) << 0)
+ /* Reserved */
+ #define HWRM_RING_ALLOC_INPUT_INT_MODE_RSVD (UINT32_C(0x1) << 0)
+ /* MSI-X */
+ #define HWRM_RING_ALLOC_INPUT_INT_MODE_MSIX (UINT32_C(0x2) << 0)
+ /* No Interrupt - Polled mode */
+ #define HWRM_RING_ALLOC_INPUT_INT_MODE_POLL (UINT32_C(0x3) << 0)
+ uint8_t int_mode;
+
+ uint8_t unused_8[3];
+} __attribute__((packed));
+
+/* Output (16 bytes) */
+
+struct hwrm_ring_alloc_output {
+ /*
+ * Pass/Fail or error type Note: receiver to verify the in parameters,
+ * and fail the call with an error when appropriate
+ */
+ uint16_t error_code;
+
+ /* This field returns the type of original request. */
+ uint16_t req_type;
+
+ /* This field provides original sequence number of the command. */
+ uint16_t seq_id;
+
+ /*
+ * 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.
+ */
+ uint16_t resp_len;
+
+ /* Physical number of ring allocated. */
+ uint16_t ring_id;
+
+ /* Logical number of ring allocated. */
+ uint16_t logical_ring_id;
+
+ uint8_t unused_0;
+ uint8_t unused_1;
+ uint8_t unused_2;
+
+ /*
+ * 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.
+ */
+ uint8_t valid;
+} __attribute__((packed));
+
+/* hwrm_ring_free */
+/*
+ * Description: This command is used to free a ring and associated resources.
+ */
+/* Input (24 bytes) */
+
+struct hwrm_ring_free_input {
+ /*
+ * This value indicates what type of request this is. The format for the
+ * rest of the command is determined by this field.
+ */
+ uint16_t req_type;
+
+ /*
+ * 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 cmpl_ring;
+
+ /* This value indicates the command sequence number. */
+ uint16_t seq_id;
+
+ /*
+ * Target ID of this command. 0x0 - 0xFFF8 - Used for function ids
+ * 0xFFF8 - 0xFFFE - Reserved for internal processors 0xFFFF - HWRM
+ */
+ uint16_t target_id;
+
+ /*
+ * 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.
+ */
+ uint64_t resp_addr;
+
+ /* Ring Type. */
+ /* Completion Ring (CR) */
+ #define HWRM_RING_FREE_INPUT_RING_TYPE_CMPL (UINT32_C(0x0) << 0)
+ /* TX Ring (TR) */
+ #define HWRM_RING_FREE_INPUT_RING_TYPE_TX (UINT32_C(0x1) << 0)
+ /* RX Ring (RR) */
+ #define HWRM_RING_FREE_INPUT_RING_TYPE_RX (UINT32_C(0x2) << 0)
+ uint8_t ring_type;
+
+ uint8_t unused_0;
+
+ /* Physical number of ring allocated. */
+ uint16_t ring_id;
+
+ uint32_t unused_1;
+} __attribute__((packed));
+
+/* Output (16 bytes) */
+struct hwrm_ring_free_output {
+ /*
+ * Pass/Fail or error type Note: receiver to verify the in parameters,
+ * and fail the call with an error when appropriate
+ */
+ uint16_t error_code;
+
+ /* This field returns the type of original request. */
+ uint16_t req_type;
+
+ /* This field provides original sequence number of the command. */
+ uint16_t seq_id;
+
+ /*
+ * 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.
+ */
+ uint16_t resp_len;
+
+ uint32_t unused_0;
+ uint8_t unused_1;
+ uint8_t unused_2;
+ uint8_t unused_3;
+
+ /*
+ * 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.
+ */
+ uint8_t valid;
+} __attribute__((packed));
+
/* hwrm_stat_ctx_alloc */
/*
* Description: This command allocates and does basic preparation for a stat
--
1.9.1
