diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
index 46bbe42412d3f94f05f231da551be332bcd10fea..79280c8f026b3515ed1941fb6be45b37d9ddf11b 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
@@ -3279,6 +3279,27 @@ static void bnxt_free_hwrm_resources(struct bnxt *bp)
bp->hwrm_cmd_resp_dma_addr);
bp->hwrm_cmd_resp_addr = NULL;
}
+
+ if (bp->hwrm_cmd_kong_resp_addr) {
+ dma_free_coherent(&pdev->dev, PAGE_SIZE,
+ bp->hwrm_cmd_kong_resp_addr,
+ bp->hwrm_cmd_kong_resp_dma_addr);
+ bp->hwrm_cmd_kong_resp_addr = NULL;
+ }
+}
+
+static int bnxt_alloc_kong_hwrm_resources(struct bnxt *bp)
+{
+ struct pci_dev *pdev = bp->pdev;
+
+ bp->hwrm_cmd_kong_resp_addr =
+ dma_alloc_coherent(&pdev->dev, PAGE_SIZE,
+ &bp->hwrm_cmd_kong_resp_dma_addr,
+ GFP_KERNEL);
+ if (!bp->hwrm_cmd_kong_resp_addr)
+ return -ENOMEM;
+
+ return 0;
}
static int bnxt_alloc_hwrm_resources(struct bnxt *bp)
@@ -3740,7 +3761,10 @@ void bnxt_hwrm_cmd_hdr_init(struct bnxt *bp, void *request, u16 req_type,
req->req_type = cpu_to_le16(req_type);
req->cmpl_ring = cpu_to_le16(cmpl_ring);
req->target_id = cpu_to_le16(target_id);
- req->resp_addr = cpu_to_le64(bp->hwrm_cmd_resp_dma_addr);
+ if (bnxt_kong_hwrm_message(bp, req))
+ req->resp_addr = cpu_to_le64(bp->hwrm_cmd_kong_resp_dma_addr);
+ else
+ req->resp_addr = cpu_to_le64(bp->hwrm_cmd_resp_dma_addr);
}
static int bnxt_hwrm_do_send_msg(struct bnxt *bp, void *msg, u32 msg_len,
@@ -3758,11 +3782,7 @@ static int bnxt_hwrm_do_send_msg(struct bnxt *bp, void *msg, u32 msg_len,
u32 doorbell_offset = BNXT_GRCPF_REG_CHIMP_COMM_TRIGGER;
u8 *resp_addr = (u8 *)bp->hwrm_cmd_resp_addr;
u32 bar_offset = BNXT_GRCPF_REG_CHIMP_COMM;
-
- req->seq_id = cpu_to_le16(bnxt_get_hwrm_seq_id(bp));
- memset(resp, 0, PAGE_SIZE);
- cp_ring_id = le16_to_cpu(req->cmpl_ring);
- intr_process = (cp_ring_id == INVALID_HW_RING_ID) ? 0 : 1;
+ u16 dst = BNXT_HWRM_CHNL_CHIMP;
if (msg_len > BNXT_HWRM_MAX_REQ_LEN) {
if (msg_len > bp->hwrm_max_ext_req_len ||
@@ -3770,6 +3790,23 @@ static int bnxt_hwrm_do_send_msg(struct bnxt *bp, void *msg, u32 msg_len,
return -EINVAL;
}
+ if (bnxt_hwrm_kong_chnl(bp, req)) {
+ dst = BNXT_HWRM_CHNL_KONG;
+ bar_offset = BNXT_GRCPF_REG_KONG_COMM;
+ doorbell_offset = BNXT_GRCPF_REG_KONG_COMM_TRIGGER;
+ resp = bp->hwrm_cmd_kong_resp_addr;
+ resp_addr = (u8 *)bp->hwrm_cmd_kong_resp_addr;
+ }
+
+ memset(resp, 0, PAGE_SIZE);
+ cp_ring_id = le16_to_cpu(req->cmpl_ring);
+ intr_process = (cp_ring_id == INVALID_HW_RING_ID) ? 0 : 1;
+
+ req->seq_id = cpu_to_le16(bnxt_get_hwrm_seq_id(bp, dst));
+ /* currently supports only one outstanding message */
+ if (intr_process)
+ bp->hwrm_intr_seq_id = le16_to_cpu(req->seq_id);
+
if ((bp->fw_cap & BNXT_FW_CAP_SHORT_CMD) ||
msg_len > BNXT_HWRM_MAX_REQ_LEN) {
void *short_cmd_req = bp->hwrm_short_cmd_req_addr;
@@ -3808,10 +3845,6 @@ static int bnxt_hwrm_do_send_msg(struct bnxt *bp, void *msg, u32 msg_len,
for (i = msg_len; i < max_req_len; i += 4)
writel(0, bp->bar0 + bar_offset + i);
- /* currently supports only one outstanding message */
- if (intr_process)
- bp->hwrm_intr_seq_id = le16_to_cpu(req->seq_id);
-
/* Ring channel doorbell */
writel(1, bp->bar0 + doorbell_offset);
@@ -6488,6 +6521,9 @@ static int bnxt_hwrm_ver_get(struct bnxt *bp)
(dev_caps_cfg & VER_GET_RESP_DEV_CAPS_CFG_SHORT_CMD_REQUIRED))
bp->fw_cap |= BNXT_FW_CAP_SHORT_CMD;
+ if (dev_caps_cfg & VER_GET_RESP_DEV_CAPS_CFG_KONG_MB_CHNL_SUPPORTED)
+ bp->fw_cap |= BNXT_FW_CAP_KONG_MB_CHNL;
+
hwrm_ver_get_exit:
mutex_unlock(&bp->hwrm_cmd_lock);
return rc;
@@ -10226,6 +10262,12 @@ static int bnxt_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
if (rc)
goto init_err_pci_clean;
+ if (bp->fw_cap & BNXT_FW_CAP_KONG_MB_CHNL) {
+ rc = bnxt_alloc_kong_hwrm_resources(bp);
+ if (rc)
+ bp->fw_cap &= ~BNXT_FW_CAP_KONG_MB_CHNL;
+ }
+
if ((bp->fw_cap & BNXT_FW_CAP_SHORT_CMD) ||
bp->hwrm_max_ext_req_len > BNXT_HWRM_MAX_REQ_LEN) {
rc = bnxt_alloc_hwrm_short_cmd_req(bp);
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.h b/drivers/net/ethernet/broadcom/bnxt/bnxt.h
index 214af8fe84c2574dd220e030cf6863b6b671ffd4..c3334c0d1e6208209bd3af55c85e8d32d83d3019 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.h
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.h
@@ -584,6 +584,9 @@ struct nqe_cn {
#define HWRM_VALID_BIT_DELAY_USEC 20
+#define BNXT_HWRM_CHNL_CHIMP 0
+#define BNXT_HWRM_CHNL_KONG 1
+
#define BNXT_RX_EVENT 1
#define BNXT_AGG_EVENT 2
#define BNXT_TX_EVENT 4
@@ -1118,6 +1121,9 @@ struct bnxt_test_info {
#define BNXT_CAG_REG_LEGACY_INT_STATUS 0x4014
#define BNXT_CAG_REG_BASE 0x300000
+#define BNXT_GRCPF_REG_KONG_COMM 0xA00
+#define BNXT_GRCPF_REG_KONG_COMM_TRIGGER 0xB00
+
struct bnxt_tc_flow_stats {
u64 packets;
u64 bytes;
@@ -1458,20 +1464,24 @@ struct bnxt {
u32 msg_enable;
u32 fw_cap;
- #define BNXT_FW_CAP_SHORT_CMD 0x00000001
- #define BNXT_FW_CAP_LLDP_AGENT 0x00000002
- #define BNXT_FW_CAP_DCBX_AGENT 0x00000004
- #define BNXT_FW_CAP_NEW_RM 0x00000008
- #define BNXT_FW_CAP_IF_CHANGE 0x00000010
+ #define BNXT_FW_CAP_SHORT_CMD 0x00000001
+ #define BNXT_FW_CAP_LLDP_AGENT 0x00000002
+ #define BNXT_FW_CAP_DCBX_AGENT 0x00000004
+ #define BNXT_FW_CAP_NEW_RM 0x00000008
+ #define BNXT_FW_CAP_IF_CHANGE 0x00000010
+ #define BNXT_FW_CAP_KONG_MB_CHNL 0x00000080
#define BNXT_NEW_RM(bp) ((bp)->fw_cap & BNXT_FW_CAP_NEW_RM)
u32 hwrm_spec_code;
u16 hwrm_cmd_seq;
+ u16 hwrm_cmd_kong_seq;
u16 hwrm_intr_seq_id;
void *hwrm_short_cmd_req_addr;
dma_addr_t hwrm_short_cmd_req_dma_addr;
void *hwrm_cmd_resp_addr;
dma_addr_t hwrm_cmd_resp_dma_addr;
+ void *hwrm_cmd_kong_resp_addr;
+ dma_addr_t hwrm_cmd_kong_resp_dma_addr;
struct rtnl_link_stats64 net_stats_prev;
struct rx_port_stats *hw_rx_port_stats;
@@ -1673,16 +1683,63 @@ static inline void bnxt_db_write(struct bnxt *bp, struct bnxt_db_info *db,
}
}
+static inline bool bnxt_cfa_hwrm_message(u16 req_type)
+{
+ switch (req_type) {
+ case HWRM_CFA_ENCAP_RECORD_ALLOC:
+ case HWRM_CFA_ENCAP_RECORD_FREE:
+ case HWRM_CFA_DECAP_FILTER_ALLOC:
+ case HWRM_CFA_DECAP_FILTER_FREE:
+ case HWRM_CFA_NTUPLE_FILTER_ALLOC:
+ case HWRM_CFA_NTUPLE_FILTER_FREE:
+ case HWRM_CFA_NTUPLE_FILTER_CFG:
+ case HWRM_CFA_EM_FLOW_ALLOC:
+ case HWRM_CFA_EM_FLOW_FREE:
+ case HWRM_CFA_EM_FLOW_CFG:
+ case HWRM_CFA_FLOW_ALLOC:
+ case HWRM_CFA_FLOW_FREE:
+ case HWRM_CFA_FLOW_INFO:
+ case HWRM_CFA_FLOW_FLUSH:
+ case HWRM_CFA_FLOW_STATS:
+ case HWRM_CFA_METER_PROFILE_ALLOC:
+ case HWRM_CFA_METER_PROFILE_FREE:
+ case HWRM_CFA_METER_PROFILE_CFG:
+ case HWRM_CFA_METER_INSTANCE_ALLOC:
+ case HWRM_CFA_METER_INSTANCE_FREE:
+ return true;
+ default:
+ return false;
+ }
+}
+
+static inline bool bnxt_kong_hwrm_message(struct bnxt *bp, struct input *req)
+{
+ return (bp->fw_cap & BNXT_FW_CAP_KONG_MB_CHNL &&
+ bnxt_cfa_hwrm_message(le16_to_cpu(req->req_type)));
+}
+
+static inline bool bnxt_hwrm_kong_chnl(struct bnxt *bp, struct input *req)
+{
+ return (bp->fw_cap & BNXT_FW_CAP_KONG_MB_CHNL &&
+ req->resp_addr == cpu_to_le64(bp->hwrm_cmd_kong_resp_dma_addr));
+}
+
static inline void *bnxt_get_hwrm_resp_addr(struct bnxt *bp, void *req)
{
- return bp->hwrm_cmd_resp_addr;
+ if (bnxt_hwrm_kong_chnl(bp, (struct input *)req))
+ return bp->hwrm_cmd_kong_resp_addr;
+ else
+ return bp->hwrm_cmd_resp_addr;
}
-static inline u16 bnxt_get_hwrm_seq_id(struct bnxt *bp)
+static inline u16 bnxt_get_hwrm_seq_id(struct bnxt *bp, u16 dst)
{
u16 seq_id;
- seq_id = bp->hwrm_cmd_seq++;
+ if (dst == BNXT_HWRM_CHNL_CHIMP)
+ seq_id = bp->hwrm_cmd_seq++;
+ else
+ seq_id = bp->hwrm_cmd_kong_seq++;
return seq_id;
}