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authorYunhong Jiang <yunhong.jiang@linux.intel.com>2016-08-18 17:21:26 -0700
committerYunhong Jiang <yunhong.jiang@linux.intel.com>2016-08-18 17:26:41 -0700
commit778c35e3cf9a5bc9e4abd73d9d9cf74925e6f7f3 (patch)
tree1ea3ae0609da00062d138a0ebfd826b91e1ed136 /kernel
parent2aa991a490387f3910a7e1bf02de83a7efb28014 (diff)
bnxt_en: Reset embedded processor after applying firmware upgrade
Use HWRM_FW_RESET command to request a self-reset of the embedded processor(s) after successfully applying a firmware update. For boot processor, the self-reset is currently deferred until the next PCIe reset. upstream-status: backport Notice: We change the Signed-off-by to "Signed -of -by" to avoid trigger the spam to the original author. Signed -of -by: Rob Swindell <swindell@broadcom.com> Signed -of -by: Michael Chan <mchan@broadcom.com> Signed -of -by: David S. Miller <davem@davemloft.net> Change-Id: Ic491d584c566b89a315d04f41b1d4fa928756403 Signed-off-by: Yunhong Jiang <yunhong.jiang@linux.intel.com>
Diffstat (limited to 'kernel')
-rw-r--r--kernel/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c46
1 files changed, 42 insertions, 4 deletions
diff --git a/kernel/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c b/kernel/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c
index 45bd628ea..e33b6d667 100644
--- a/kernel/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c
+++ b/kernel/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c
@@ -802,6 +802,45 @@ static int bnxt_flash_nvram(struct net_device *dev,
return rc;
}
+static int bnxt_firmware_reset(struct net_device *dev,
+ u16 dir_type)
+{
+ struct bnxt *bp = netdev_priv(dev);
+ struct hwrm_fw_reset_input req = {0};
+
+ bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_FW_RESET, -1, -1);
+
+ /* TODO: Support ASAP ChiMP self-reset (e.g. upon PF driver unload) */
+ /* TODO: Address self-reset of APE/KONG/BONO/TANG or ungraceful reset */
+ /* (e.g. when firmware isn't already running) */
+ switch (dir_type) {
+ case BNX_DIR_TYPE_CHIMP_PATCH:
+ case BNX_DIR_TYPE_BOOTCODE:
+ case BNX_DIR_TYPE_BOOTCODE_2:
+ req.embedded_proc_type = FW_RESET_REQ_EMBEDDED_PROC_TYPE_BOOT;
+ /* Self-reset ChiMP upon next PCIe reset: */
+ req.selfrst_status = FW_RESET_REQ_SELFRST_STATUS_SELFRSTPCIERST;
+ break;
+ case BNX_DIR_TYPE_APE_FW:
+ case BNX_DIR_TYPE_APE_PATCH:
+ req.embedded_proc_type = FW_RESET_REQ_EMBEDDED_PROC_TYPE_MGMT;
+ break;
+ case BNX_DIR_TYPE_KONG_FW:
+ case BNX_DIR_TYPE_KONG_PATCH:
+ req.embedded_proc_type =
+ FW_RESET_REQ_EMBEDDED_PROC_TYPE_NETCTRL;
+ break;
+ case BNX_DIR_TYPE_BONO_FW:
+ case BNX_DIR_TYPE_BONO_PATCH:
+ req.embedded_proc_type = FW_RESET_REQ_EMBEDDED_PROC_TYPE_ROCE;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ return hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
+}
+
static int bnxt_flash_firmware(struct net_device *dev,
u16 dir_type,
const u8 *fw_data,
@@ -856,10 +895,9 @@ static int bnxt_flash_firmware(struct net_device *dev,
/* TODO: Validate digital signature (RSA-encrypted SHA-256 hash) here */
rc = bnxt_flash_nvram(dev, dir_type, BNX_DIR_ORDINAL_FIRST,
0, 0, fw_data, fw_size);
- if (rc == 0) { /* Firmware update successful */
- /* TODO: Notify processor it needs to reset itself
- */
- }
+ if (rc == 0) /* Firmware update successful */
+ rc = bnxt_firmware_reset(dev, dir_type);
+
return rc;
}