nfp: devlink: add 'reset_dev_on_drv_probe' support

Add support for the 'reset_dev_on_drv_probe' devlink parameter. The
reset control policy is controlled by the 'abi_drv_reset' hwinfo key.

Signed-off-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/Documentation/networking/devlink-params-nfp.txt b/Documentation/networking/devlink-params-nfp.txt
index 85b1e36..43e4d40 100644 (file)
--- a/Documentation/networking/devlink-params-nfp.txt
+++ b/Documentation/networking/devlink-params-nfp.txt
@@ -1,2 +1,5 @@
 fw_load_policy         [DEVICE, GENERIC]
                        Configuration mode: permanent
+
+reset_dev_on_drv_probe [DEVICE, GENERIC]
+                       Configuration mode: permanent

diff --git a/drivers/net/ethernet/netronome/nfp/devlink_param.c b/drivers/net/ethernet/netronome/nfp/devlink_param.c
index d9c74cf..4a8141b 100644 (file)
--- a/drivers/net/ethernet/netronome/nfp/devlink_param.c
+++ b/drivers/net/ethernet/netronome/nfp/devlink_param.c
@@ -52,6 +52,30 @@ static const struct nfp_devlink_param_u8_arg nfp_devlink_u8_args[] = {
                .max_dl_val = DEVLINK_PARAM_FW_LOAD_POLICY_VALUE_DISK,
                .max_hi_val = NFP_NSP_APP_FW_LOAD_PREF,
        },
+       [DEVLINK_PARAM_GENERIC_ID_RESET_DEV_ON_DRV_PROBE] = {
+               .hwinfo_name = "abi_drv_reset",
+               .default_hi_val = NFP_NSP_DRV_RESET_DEFAULT,
+               .invalid_dl_val =
+                       DEVLINK_PARAM_RESET_DEV_ON_DRV_PROBE_VALUE_UNKNOWN,
+               .hi_to_dl = {
+                       [NFP_NSP_DRV_RESET_ALWAYS] =
+                               DEVLINK_PARAM_RESET_DEV_ON_DRV_PROBE_VALUE_ALWAYS,
+                       [NFP_NSP_DRV_RESET_NEVER] =
+                               DEVLINK_PARAM_RESET_DEV_ON_DRV_PROBE_VALUE_NEVER,
+                       [NFP_NSP_DRV_RESET_DISK] =
+                               DEVLINK_PARAM_RESET_DEV_ON_DRV_PROBE_VALUE_DISK,
+               },
+               .dl_to_hi = {
+                       [DEVLINK_PARAM_RESET_DEV_ON_DRV_PROBE_VALUE_ALWAYS] =
+                               NFP_NSP_DRV_RESET_ALWAYS,
+                       [DEVLINK_PARAM_RESET_DEV_ON_DRV_PROBE_VALUE_NEVER] =
+                               NFP_NSP_DRV_RESET_NEVER,
+                       [DEVLINK_PARAM_RESET_DEV_ON_DRV_PROBE_VALUE_DISK] =
+                               NFP_NSP_DRV_RESET_DISK,
+               },
+               .max_dl_val = DEVLINK_PARAM_RESET_DEV_ON_DRV_PROBE_VALUE_DISK,
+               .max_hi_val = NFP_NSP_DRV_RESET_NEVER,
+       }
 };
 
 static int
@@ -172,6 +196,11 @@ static const struct devlink_param nfp_devlink_params[] = {
                              nfp_devlink_param_u8_get,
                              nfp_devlink_param_u8_set,
                              nfp_devlink_param_u8_validate),
+       DEVLINK_PARAM_GENERIC(RESET_DEV_ON_DRV_PROBE,
+                             BIT(DEVLINK_PARAM_CMODE_PERMANENT),
+                             nfp_devlink_param_u8_get,
+                             nfp_devlink_param_u8_set,
+                             nfp_devlink_param_u8_validate),
 };
 
 static int nfp_devlink_supports_params(struct nfp_pf *pf)