netdev - Re: [PATCH net-next v2 13/13] bnxt_en: Add support for flashing the device via devlink

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Date:   Mon, 25 Nov 2019 11:19:59 +0100
From:   Jiri Pirko <jiri@...nulli.us>
To:     Michael Chan <michael.chan@...adcom.com>
Cc:     davem@...emloft.net, jakub.kicinski@...ronome.com,
        netdev@...r.kernel.org,
        Vasundhara Volam <vasundhara-v.volam@...adcom.com>,
        Jiri Pirko <jiri@...lanox.com>
Subject: Re: [PATCH net-next v2 13/13] bnxt_en: Add support for flashing the
 device via devlink

Sun, Nov 24, 2019 at 04:30:50AM CET, michael.chan@...adcom.com wrote:
>From: Vasundhara Volam <vasundhara-v.volam@...adcom.com>
>
>Use the same bnxt_flash_package_from_file() function to support
>devlink flash operation.
>
>Cc: Jiri Pirko <jiri@...lanox.com>
>Signed-off-by: Vasundhara Volam <vasundhara-v.volam@...adcom.com>
>Signed-off-by: Michael Chan <michael.chan@...adcom.com>
>---
> drivers/net/ethernet/broadcom/bnxt/bnxt_devlink.c | 20 ++++++++++++++++++++
> drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c |  4 ++--
> drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.h |  2 ++
> 3 files changed, 24 insertions(+), 2 deletions(-)
>
>diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_devlink.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_devlink.c
>index 7078271..acb2dd6 100644
>--- a/drivers/net/ethernet/broadcom/bnxt/bnxt_devlink.c
>+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_devlink.c
>@@ -14,6 +14,25 @@
> #include "bnxt.h"
> #include "bnxt_vfr.h"
> #include "bnxt_devlink.h"
>+#include "bnxt_ethtool.h"
>+
>+static int
>+bnxt_dl_flash_update(struct devlink *dl, const char *filename,
>+		     const char *region, struct netlink_ext_ack *extack)
>+{
>+	struct bnxt *bp = bnxt_get_bp_from_dl(dl);
>+
>+	if (region)
>+		return -EOPNOTSUPP;
>+
>+	if (!BNXT_PF(bp)) {
>+		NL_SET_ERR_MSG_MOD(extack,
>+				   "flash update not supported from a VF");
>+		return -EPERM;
>+	}
>+
>+	return bnxt_flash_package_from_file(bp->dev, filename, 0);
>+}
> 
> static int bnxt_fw_reporter_diagnose(struct devlink_health_reporter *reporter,
> 				     struct devlink_fmsg *fmsg,
>@@ -225,6 +244,7 @@ static const struct devlink_ops bnxt_dl_ops = {
> 	.eswitch_mode_set = bnxt_dl_eswitch_mode_set,
> 	.eswitch_mode_get = bnxt_dl_eswitch_mode_get,
> #endif /* CONFIG_BNXT_SRIOV */
>+	.flash_update	  = bnxt_dl_flash_update,

Could you please consider implementing flash status notifications?
See:
devlink_flash_update_begin_notify()
devlink_flash_update_end_notify()
devlink_flash_update_status_notify()


Thanks!


> };
> 
> enum bnxt_dl_param_id {
>diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c
>index e455aaa..2ccf79c 100644
>--- a/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c
>+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c
>@@ -2000,8 +2000,8 @@ static int bnxt_flash_firmware_from_file(struct net_device *dev,
> 	return rc;
> }
> 
>-static int bnxt_flash_package_from_file(struct net_device *dev,
>-					char *filename, u32 install_type)
>+int bnxt_flash_package_from_file(struct net_device *dev, const char *filename,
>+				 u32 install_type)
> {
> 	struct bnxt *bp = netdev_priv(dev);
> 	struct hwrm_nvm_install_update_output *resp = bp->hwrm_cmd_resp_addr;
>diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.h b/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.h
>index 01de7e7..4428d0a 100644
>--- a/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.h
>+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.h
>@@ -81,6 +81,8 @@ extern const struct ethtool_ops bnxt_ethtool_ops;
> u32 _bnxt_fw_to_ethtool_adv_spds(u16, u8);
> u32 bnxt_fw_to_ethtool_speed(u16);
> u16 bnxt_get_fw_auto_link_speeds(u32);
>+int bnxt_flash_package_from_file(struct net_device *dev, const char *filename,
>+				 u32 install_type);
> void bnxt_ethtool_init(struct bnxt *bp);
> void bnxt_ethtool_free(struct bnxt *bp);
> 
>-- 
>2.5.1
>