kmod-redhat-bnxt_en/SOURCES/0060-netdrv-bnxt_en-Convert-error-code-in-firmware-messag.patch

From ba2d2e2bd59c1dcd20c30fa6f05a847dc613b85d Mon Sep 17 00:00:00 2001
From: Jonathan Toppins <jtoppins@redhat.com>
Date: Wed, 2 Oct 2019 18:23:15 -0400
Subject: [PATCH 60/96] [netdrv] bnxt_en: Convert error code in firmware
 message response to standard code

Message-id: <6fad2b5f944f9ec2522f438afff3f55d8099ac99.1570027456.git.jtoppins@redhat.com>
Patchwork-id: 276478
O-Subject: [RHEL-8.2 PATCH 53/78] bnxt_en: Convert error code in firmware message response to standard code.
Bugzilla: 1724766
RH-Acked-by: John Linville <linville@redhat.com>
RH-Acked-by: Jarod Wilson <jarod@redhat.com>

The main firmware messaging function returns the firmware defined error
code and many callers have to convert to standard error code for proper
propagation to userspace.  Convert bnxt_hwrm_do_send_msg() to return
standard error code so we can do away with all the special error code
handling by the many callers.

Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
(cherry picked from commit d4f1420d365633490aa134abfe408453d1c7c238)
Bugzilla: 1724766
Build Info: https://brewweb.engineering.redhat.com/brew/taskinfo?taskID=23809532
Tested: build, boot, basic ping
Signed-off-by: Jonathan Toppins <jtoppins@redhat.com>
Signed-off-by: Bruno Meneguele <bmeneg@redhat.com>
---
 drivers/net/ethernet/broadcom/bnxt/bnxt.c         | 60 ++++++++++++++---------
 drivers/net/ethernet/broadcom/bnxt/bnxt_dcb.c     |  4 --
 drivers/net/ethernet/broadcom/bnxt/bnxt_devlink.c |  8 +--
 drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c | 20 ++------
 drivers/net/ethernet/broadcom/bnxt/bnxt_sriov.c   | 12 ++---
 drivers/net/ethernet/broadcom/bnxt/bnxt_tc.c      | 17 -------
 6 files changed, 44 insertions(+), 77 deletions(-)

Index: src/drivers/net/ethernet/broadcom/bnxt/bnxt.c
===================================================================
--- src.orig/drivers/net/ethernet/broadcom/bnxt/bnxt.c	2020-02-06 16:23:18.179490489 +0100
+++ src/drivers/net/ethernet/broadcom/bnxt/bnxt.c	2020-02-06 16:23:18.306489323 +0100
@@ -4053,6 +4053,32 @@
 		req->resp_addr = cpu_to_le64(bp->hwrm_cmd_resp_dma_addr);
 }
 
+static int bnxt_hwrm_to_stderr(u32 hwrm_err)
+{
+	switch (hwrm_err) {
+	case HWRM_ERR_CODE_SUCCESS:
+		return 0;
+	case HWRM_ERR_CODE_RESOURCE_ACCESS_DENIED:
+		return -EACCES;
+	case HWRM_ERR_CODE_RESOURCE_ALLOC_ERROR:
+		return -ENOSPC;
+	case HWRM_ERR_CODE_INVALID_PARAMS:
+	case HWRM_ERR_CODE_INVALID_FLAGS:
+	case HWRM_ERR_CODE_INVALID_ENABLES:
+	case HWRM_ERR_CODE_UNSUPPORTED_TLV:
+	case HWRM_ERR_CODE_UNSUPPORTED_OPTION_ERR:
+		return -EINVAL;
+	case HWRM_ERR_CODE_NO_BUFFER:
+		return -ENOMEM;
+	case HWRM_ERR_CODE_HOT_RESET_PROGRESS:
+		return -EAGAIN;
+	case HWRM_ERR_CODE_CMD_NOT_SUPPORTED:
+		return -EOPNOTSUPP;
+	default:
+		return -EIO;
+	}
+}
+
 static int bnxt_hwrm_do_send_msg(struct bnxt *bp, void *msg, u32 msg_len,
 				 int timeout, bool silent)
 {
@@ -4227,7 +4253,7 @@
 		netdev_err(bp->dev, "hwrm req_type 0x%x seq id 0x%x error 0x%x\n",
 			   le16_to_cpu(resp->req_type),
 			   le16_to_cpu(resp->seq_id), rc);
-	return rc;
+	return bnxt_hwrm_to_stderr(rc);
 }
 
 int _hwrm_send_message(struct bnxt *bp, void *msg, u32 msg_len, int timeout)
@@ -4340,10 +4366,8 @@
 
 	mutex_lock(&bp->hwrm_cmd_lock);
 	rc = _hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
-	if (rc)
-		rc = -EIO;
-	else if (resp->flags &
-		 cpu_to_le32(FUNC_DRV_RGTR_RESP_FLAGS_IF_CHANGE_SUPPORTED))
+	if (!rc && (resp->flags &
+		    cpu_to_le32(FUNC_DRV_RGTR_RESP_FLAGS_IF_CHANGE_SUPPORTED)))
 		bp->fw_cap |= BNXT_FW_CAP_IF_CHANGE;
 	mutex_unlock(&bp->hwrm_cmd_lock);
 	return rc;
@@ -4766,7 +4790,7 @@
 		}
 		rc = hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
 		if (rc)
-			return -EIO;
+			return rc;
 	}
 	return 0;
 }
@@ -5526,7 +5550,7 @@
 	rc = _hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
 	if (rc) {
 		mutex_unlock(&bp->hwrm_cmd_lock);
-		return -EIO;
+		return rc;
 	}
 
 	hw_resc->resv_tx_rings = le16_to_cpu(resp->alloc_tx_rings);
@@ -5690,7 +5714,7 @@
 
 	rc = hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
 	if (rc)
-		return -ENOMEM;
+		return rc;
 
 	if (bp->hwrm_spec_code < 0x10601)
 		bp->hw_resc.resv_tx_rings = tx_rings;
@@ -5715,7 +5739,7 @@
 				     cp_rings, stats, vnics);
 	rc = hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
 	if (rc)
-		return -ENOMEM;
+		return rc;
 
 	rc = bnxt_hwrm_get_rings(bp);
 	return rc;
@@ -5896,9 +5920,7 @@
 
 	req.flags = cpu_to_le32(flags);
 	rc = hwrm_send_message_silent(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
-	if (rc)
-		return -ENOMEM;
-	return 0;
+	return rc;
 }
 
 static int bnxt_hwrm_check_pf_rings(struct bnxt *bp, int tx_rings, int rx_rings,
@@ -5926,9 +5948,7 @@
 
 	req.flags = cpu_to_le32(flags);
 	rc = hwrm_send_message_silent(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
-	if (rc)
-		return -ENOMEM;
-	return 0;
+	return rc;
 }
 
 static int bnxt_hwrm_check_rings(struct bnxt *bp, int tx_rings, int rx_rings,
@@ -6488,8 +6508,6 @@
 	}
 	req.flags = cpu_to_le32(flags);
 	rc = hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
-	if (rc)
-		rc = -EIO;
 	return rc;
 }
 
@@ -6751,10 +6769,8 @@
 	mutex_lock(&bp->hwrm_cmd_lock);
 	rc = _hwrm_send_message_silent(bp, &req, sizeof(req),
 				       HWRM_CMD_TIMEOUT);
-	if (rc) {
-		rc = -EIO;
+	if (rc)
 		goto hwrm_func_resc_qcaps_exit;
-	}
 
 	hw_resc->max_tx_sch_inputs = le16_to_cpu(resp->max_tx_scheduler_inputs);
 	if (!all)
@@ -7262,8 +7278,6 @@
 	else
 		return -EINVAL;
 	rc = hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
-	if (rc)
-		rc = -EIO;
 	return rc;
 }
 
@@ -7283,8 +7297,6 @@
 		req.options = FUNC_CFG_REQ_OPTIONS_CACHE_LINESIZE_SIZE_128;
 
 	rc = hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
-	if (rc)
-		rc = -EIO;
 	return rc;
 }
 
Index: src/drivers/net/ethernet/broadcom/bnxt/bnxt_dcb.c
===================================================================
--- src.orig/drivers/net/ethernet/broadcom/bnxt/bnxt_dcb.c	2020-02-06 16:23:12.277544664 +0100
+++ src/drivers/net/ethernet/broadcom/bnxt/bnxt_dcb.c	2020-02-06 16:23:18.306489323 +0100
@@ -377,8 +377,6 @@
 	set.data_len = cpu_to_le16(sizeof(*data) + sizeof(*fw_app) * n);
 	set.hdr_cnt = 1;
 	rc = hwrm_send_message(bp, &set, sizeof(set), HWRM_CMD_TIMEOUT);
-	if (rc)
-		rc = -EIO;
 
 set_app_exit:
 	dma_free_coherent(&bp->pdev->dev, data_len, data, mapping);
@@ -433,8 +431,6 @@
 	dscp2pri->pri = app->priority;
 	req.entry_cnt = cpu_to_le16(1);
 	rc = hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
-	if (rc)
-		rc = -EIO;
 	dma_free_coherent(&bp->pdev->dev, sizeof(*dscp2pri), dscp2pri,
 			  mapping);
 	return rc;
Index: src/drivers/net/ethernet/broadcom/bnxt/bnxt_devlink.c
===================================================================
--- src.orig/drivers/net/ethernet/broadcom/bnxt/bnxt_devlink.c	2020-02-06 16:23:15.606514107 +0100
+++ src/drivers/net/ethernet/broadcom/bnxt/bnxt_devlink.c	2020-02-06 16:23:18.306489323 +0100
@@ -109,13 +109,9 @@
 		memcpy(buf, data_addr, bytesize);
 
 	dma_free_coherent(&bp->pdev->dev, bytesize, data_addr, data_dma_addr);
-	if (rc == HWRM_ERR_CODE_RESOURCE_ACCESS_DENIED) {
+	if (rc == -EACCES)
 		netdev_err(bp->dev, "PF does not have admin privileges to modify NVM config\n");
-		return -EACCES;
-	} else if (rc) {
-		return -EIO;
-	}
-	return 0;
+	return rc;
 }
 
 static int bnxt_dl_nvm_param_get(struct devlink *dl, u32 id,
Index: src/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c
===================================================================
--- src.orig/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c	2020-02-06 16:23:18.049491682 +0100
+++ src/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c	2020-02-06 16:23:18.307489314 +0100
@@ -1743,12 +1743,8 @@
 	rc = hwrm_send_message(bp, &req, sizeof(req), FLASH_NVRAM_TIMEOUT);
 	dma_free_coherent(&bp->pdev->dev, data_len, kmem, dma_handle);
 
-	if (rc == HWRM_ERR_CODE_RESOURCE_ACCESS_DENIED) {
+	if (rc == -EACCES)
 		bnxt_print_admin_err(bp);
-		rc = -EACCES;
-	} else if (rc) {
-		rc = -EIO;
-	}
 	return rc;
 }
 
@@ -1798,12 +1794,8 @@
 	}
 
 	rc = hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
-	if (rc == HWRM_ERR_CODE_RESOURCE_ACCESS_DENIED) {
+	if (rc == -EACCES)
 		bnxt_print_admin_err(bp);
-		rc = -EACCES;
-	} else if (rc) {
-		rc = -EIO;
-	}
 	return rc;
 }
 
@@ -2098,12 +2090,8 @@
 flash_pkg_exit:
 	mutex_unlock(&bp->hwrm_cmd_lock);
 err_exit:
-	if (hwrm_err == HWRM_ERR_CODE_RESOURCE_ACCESS_DENIED) {
+	if (hwrm_err == -EACCES)
 		bnxt_print_admin_err(bp);
-		rc = -EACCES;
-	} else if (hwrm_err) {
-		rc = -EOPNOTSUPP;
-	}
 	return rc;
 }
 
@@ -2642,8 +2630,6 @@
 		led_cfg->led_group_id = bp->leds[i].led_group_id;
 	}
 	rc = hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
-	if (rc)
-		rc = -EIO;
 	return rc;
 }
 
Index: src/drivers/net/ethernet/broadcom/bnxt/bnxt_sriov.c
===================================================================
--- src.orig/drivers/net/ethernet/broadcom/bnxt/bnxt_sriov.c	2020-02-06 16:22:54.758705473 +0100
+++ src/drivers/net/ethernet/broadcom/bnxt/bnxt_sriov.c	2020-02-06 16:23:18.307489314 +0100
@@ -133,7 +133,7 @@
 	rc = _hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
 	if (rc) {
 		mutex_unlock(&bp->hwrm_cmd_lock);
-		return -EIO;
+		return rc;
 	}
 	vf->func_qcfg_flags = le16_to_cpu(resp->flags);
 	mutex_unlock(&bp->hwrm_cmd_lock);
@@ -164,9 +164,7 @@
 	else
 		req.flags = cpu_to_le32(FUNC_CFG_REQ_FLAGS_TRUSTED_VF_DISABLE);
 	rc = hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
-	if (rc)
-		return -EIO;
-	return 0;
+	return rc;
 }
 
 int bnxt_set_vf_trust(struct net_device *dev, int vf_id, bool trusted)
@@ -564,10 +562,8 @@
 		req.vf_id = cpu_to_le16(pf->first_vf_id + i);
 		rc = _hwrm_send_message(bp, &req, sizeof(req),
 					HWRM_CMD_TIMEOUT);
-		if (rc) {
-			rc = -ENOMEM;
+		if (rc)
 			break;
-		}
 		pf->active_vfs = i + 1;
 		pf->vf[i].fw_fid = pf->first_vf_id + i;
 	}
@@ -664,8 +660,6 @@
 		total_vf_tx_rings += vf_tx_rsvd;
 	}
 	mutex_unlock(&bp->hwrm_cmd_lock);
-	if (rc)
-		rc = -ENOMEM;
 	if (pf->active_vfs) {
 		hw_resc->max_tx_rings -= total_vf_tx_rings;
 		hw_resc->max_rx_rings -= vf_rx_rings * num_vfs;
Index: src/drivers/net/ethernet/broadcom/bnxt/bnxt_tc.c
===================================================================
--- src.orig/drivers/net/ethernet/broadcom/bnxt/bnxt_tc.c	2020-02-06 16:23:15.476515300 +0100
+++ src/drivers/net/ethernet/broadcom/bnxt/bnxt_tc.c	2020-02-06 16:23:18.307489314 +0100
@@ -319,8 +319,6 @@
 	if (rc)
 		netdev_info(bp->dev, "%s: Error rc=%d", __func__, rc);
 
-	if (rc)
-		rc = -EIO;
 	return rc;
 }
 
@@ -515,11 +513,6 @@
 		}
 	}
 	mutex_unlock(&bp->hwrm_cmd_lock);
-
-	if (rc == HWRM_ERR_CODE_RESOURCE_ALLOC_ERROR)
-		rc = -ENOSPC;
-	else if (rc)
-		rc = -EIO;
 	return rc;
 }
 
@@ -591,8 +584,6 @@
 	}
 	mutex_unlock(&bp->hwrm_cmd_lock);
 
-	if (rc)
-		rc = -EIO;
 	return rc;
 }
 
@@ -609,8 +600,6 @@
 	if (rc)
 		netdev_info(bp->dev, "%s: Error rc=%d", __func__, rc);
 
-	if (rc)
-		rc = -EIO;
 	return rc;
 }
 
@@ -660,8 +649,6 @@
 	}
 	mutex_unlock(&bp->hwrm_cmd_lock);
 
-	if (rc)
-		rc = -EIO;
 	return rc;
 }
 
@@ -678,8 +665,6 @@
 	if (rc)
 		netdev_info(bp->dev, "%s: Error rc=%d", __func__, rc);
 
-	if (rc)
-		rc = -EIO;
 	return rc;
 }
 
@@ -1457,8 +1442,6 @@
 	}
 	mutex_unlock(&bp->hwrm_cmd_lock);
 
-	if (rc)
-		rc = -EIO;
 	return rc;
 }