bnxt_en: remove legacy HWRM interface

There are no longer any callers relying on the old API.
Signed-off-by: Edwin Peer <edwin.peer@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/broadcom/bnxt/bnxt.c

@@ -3956,29 +3956,13 @@ static int bnxt_alloc_vnic_attributes(struct bnxt *bp)
 
 static void bnxt_free_hwrm_resources(struct bnxt *bp)
 {
-	struct pci_dev *pdev = bp->pdev;
-
-	if (bp->hwrm_cmd_resp_addr) {
-		dma_free_coherent(&pdev->dev, PAGE_SIZE, bp->hwrm_cmd_resp_addr,
-				  bp->hwrm_cmd_resp_dma_addr);
-		bp->hwrm_cmd_resp_addr = NULL;
-	}
-
 	dma_pool_destroy(bp->hwrm_dma_pool);
 	bp->hwrm_dma_pool = NULL;
 }
 
 static int bnxt_alloc_hwrm_resources(struct bnxt *bp)
 {
-	struct pci_dev *pdev = bp->pdev;
-
-	bp->hwrm_cmd_resp_addr = dma_alloc_coherent(&pdev->dev, PAGE_SIZE,
-						   &bp->hwrm_cmd_resp_dma_addr,
-						   GFP_KERNEL);
-	if (!bp->hwrm_cmd_resp_addr)
-		return -ENOMEM;
-
-	bp->hwrm_dma_pool = dma_pool_create("bnxt_hwrm", &pdev->dev,
+	bp->hwrm_dma_pool = dma_pool_create("bnxt_hwrm", &bp->pdev->dev,
 					    BNXT_HWRM_DMA_SIZE,
 					    BNXT_HWRM_DMA_ALIGN, 0);
 	if (!bp->hwrm_dma_pool)

drivers/net/ethernet/broadcom/bnxt/bnxt.h

@@ -1881,8 +1881,6 @@ struct bnxt {
 	u16			hwrm_cmd_seq;
 	u16                     hwrm_cmd_kong_seq;
 	u16			hwrm_intr_seq_id;
-	void			*hwrm_cmd_resp_addr;
-	dma_addr_t		hwrm_cmd_resp_dma_addr;
 	struct dma_pool		*hwrm_dma_pool;
 
 	struct rtnl_link_stats64	net_stats_prev;

drivers/net/ethernet/broadcom/bnxt/bnxt_hwrm.c

@@ -24,17 +24,6 @@
 #include "bnxt.h"
 #include "bnxt_hwrm.h"
 
-void bnxt_hwrm_cmd_hdr_init(struct bnxt *bp, void *request, u16 req_type,
-			    u16 cmpl_ring, u16 target_id)
-{
-	struct input *req = request;
-
-	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);
-}
-
 static u64 hwrm_calc_sentinel(struct bnxt_hwrm_ctx *ctx, u16 req_type)
 {
 	return (((uintptr_t)ctx) + req_type) ^ BNXT_HWRM_SENTINEL;
@@ -587,72 +576,6 @@ static int __hwrm_send(struct bnxt *bp, struct bnxt_hwrm_ctx *ctx)
 	return rc;
 }
 
-static int bnxt_hwrm_do_send_msg(struct bnxt *bp, void *msg, u32 msg_len,
-				 int timeout, bool silent)
-{
-	struct bnxt_hwrm_ctx default_ctx = {0};
-	struct bnxt_hwrm_ctx *ctx = &default_ctx;
-	struct input *req = msg;
-	int rc;
-
-	if ((bp->fw_cap & BNXT_FW_CAP_SHORT_CMD) ||
-	    msg_len > BNXT_HWRM_MAX_REQ_LEN) {
-		rc = __hwrm_req_init(bp, (void **)&req,
-				     le16_to_cpu(req->req_type), msg_len);
-		if (rc)
-			return rc;
-		memcpy(req, msg, msg_len); /* also copies resp_addr */
-		ctx = __hwrm_ctx(bp, (u8 *)req);
-		/* belts and brances, NULL ctx shouldn't be possible here */
-		if (!ctx)
-			return -ENOMEM;
-	}
-
-	ctx->req = req;
-	ctx->req_len = msg_len;
-	ctx->resp = bp->hwrm_cmd_resp_addr;
-	/* global response is not reallocated __GFP_ZERO between requests */
-	ctx->flags = BNXT_HWRM_INTERNAL_RESP_DIRTY;
-	ctx->timeout = timeout ?: DFLT_HWRM_CMD_TIMEOUT;
-	if (silent)
-		ctx->flags |= BNXT_HWRM_CTX_SILENT;
-
-	/* will consume req if allocated with __hwrm_req_init() */
-	return __hwrm_send(bp, ctx);
-}
-
-int _hwrm_send_message(struct bnxt *bp, void *msg, u32 msg_len, int timeout)
-{
-	return bnxt_hwrm_do_send_msg(bp, msg, msg_len, timeout, false);
-}
-
-int _hwrm_send_message_silent(struct bnxt *bp, void *msg, u32 msg_len,
-			      int timeout)
-{
-	return bnxt_hwrm_do_send_msg(bp, msg, msg_len, timeout, true);
-}
-
-int hwrm_send_message(struct bnxt *bp, void *msg, u32 msg_len, int timeout)
-{
-	int rc;
-
-	mutex_lock(&bp->hwrm_cmd_lock);
-	rc = _hwrm_send_message(bp, msg, msg_len, timeout);
-	mutex_unlock(&bp->hwrm_cmd_lock);
-	return rc;
-}
-
-int hwrm_send_message_silent(struct bnxt *bp, void *msg, u32 msg_len,
-			     int timeout)
-{
-	int rc;
-
-	mutex_lock(&bp->hwrm_cmd_lock);
-	rc = bnxt_hwrm_do_send_msg(bp, msg, msg_len, timeout, true);
-	mutex_unlock(&bp->hwrm_cmd_lock);
-	return rc;
-}
-
 /**
  * hwrm_req_send() - Execute an HWRM command.
  * @bp: The driver context.

drivers/net/ethernet/broadcom/bnxt/bnxt_hwrm.h

@@ -114,11 +114,6 @@ static inline bool bnxt_kong_hwrm_message(struct bnxt *bp, struct input *req)
 		 le16_to_cpu(req->target_id) == HWRM_TARGET_ID_KONG));
 }
 
-static inline void *bnxt_get_hwrm_resp_addr(struct bnxt *bp, void *req)
-{
-	return bp->hwrm_cmd_resp_addr;
-}
-
 static inline u16 bnxt_get_hwrm_seq_id(struct bnxt *bp, u16 dst)
 {
 	u16 seq_id;
@@ -130,11 +125,6 @@ static inline u16 bnxt_get_hwrm_seq_id(struct bnxt *bp, u16 dst)
 	return seq_id;
 }
 
-void bnxt_hwrm_cmd_hdr_init(struct bnxt *, void *, u16, u16, u16);
-int _hwrm_send_message(struct bnxt *bp, void *msg, u32 len, int timeout);
-int _hwrm_send_message_silent(struct bnxt *bp, void *msg, u32 len, int timeout);
-int hwrm_send_message(struct bnxt *bp, void *msg, u32 len, int timeout);
-int hwrm_send_message_silent(struct bnxt *bp, void *msg, u32 len, int timeout);
 int __hwrm_req_init(struct bnxt *bp, void **req, u16 req_type, u32 req_len);
 #define hwrm_req_init(bp, req, req_type) \
 	__hwrm_req_init((bp), (void **)&(req), (req_type), sizeof(*(req)))