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bnxt_en: Reset embedded processor after applying firmware upgrade

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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.

Signed-off-by: Rob Swindell <swindell@broadcom.com>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Rob Swindell 2016-01-07 19:56:58 -05:00 committed by David S. Miller
parent d79979a103
commit d2d6318cb9
1 changed files with 42 additions and 4 deletions
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46
drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c
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@ -837,6 +837,45 @@ 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,
@ -894,10 +933,9 @@ 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;
}