[PATCH net-next V2 0/7] mlxfw: Improve error reporting and FW reactivate support

[PATCH net-next V2 0/7] mlxfw: Improve error reporting and FW reactivate support

[Saeed Mahameed]

This patchset improves mlxfw error reporting to netlink and to
kernel log.

V2:
 - Use proper err codes, EBUSY/EIO instead of EALREADY/EREMOTEIO
 - Fix typo.

From Eran and me.

1) patch #1, Make mlxfw/mlxsw fw flash devlink status notify generic,
   and enable it for mlx5.

2) patches #2..#5 are improving mlxfw flash error messages by
reporting detailed mlxfw FSM error messages to netlink and kernel log.

3) patches #6,7 From Eran: Add FW reactivate flow to  mlxfw and mlx5

Thanks,
Saeed.

Eran Ben Elisha (2):
  net/mlxfw: Add reactivate flow support to FSM burn flow
  net/mlx5: Add fsm_reactivate callback support

Saeed Mahameed (5):
  net/mlxfw: Generic mlx FW flash status notify
  net/mlxfw: Improve FSM err message reporting and return codes
  net/mlxfw: More error messages coverage
  net/mlxfw: Convert pr_* to dev_* in mlxfw_fsm.c
  net/mlxfw: Use MLXFW_ERR_MSG macro for error reporting

 drivers/net/ethernet/mellanox/mlx5/core/fw.c  |  40 +++
 drivers/net/ethernet/mellanox/mlxfw/Kconfig   |   1 +
 drivers/net/ethernet/mellanox/mlxfw/mlxfw.h   |  50 ++-
 .../net/ethernet/mellanox/mlxfw/mlxfw_fsm.c   | 296 ++++++++++++++----
 .../net/ethernet/mellanox/mlxsw/spectrum.c    |  17 +-
 5 files changed, 308 insertions(+), 96 deletions(-)

-- 
2.24.1

[PATCH net-next V2 1/7] net/mlxfw: Generic mlx FW flash status notify

[Saeed Mahameed]

FW flash status notify is currently implemented via a callback to the
caller mlx module, and all it is doing is to call
devlink_flash_update_status_notify with the specific module devlink
instance.

Instead of repeating the whole process for all mlx modules and
re-implement the status_notify callback again and again. Just provide the
devlink instance as part of mlxfw_dev when calling mlxfw_firmware_flash
and let mlxfw do the devlink status updates directly.

This will be very useful for adding status notify support to mlx5, as
already done in this patch, with a simple one line of just providing the
devlink instance to mlxfw_firmware_flash.

mlxfw now depends on NET_DEVLINK as all other mlx modules.

Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
---
 drivers/net/ethernet/mellanox/mlx5/core/fw.c  |  1 +
 drivers/net/ethernet/mellanox/mlxfw/Kconfig   |  1 +
 drivers/net/ethernet/mellanox/mlxfw/mlxfw.h   |  6 ++----
 .../net/ethernet/mellanox/mlxfw/mlxfw_fsm.c   | 21 ++++++++++---------
 .../net/ethernet/mellanox/mlxsw/spectrum.c    | 17 +--------------
 5 files changed, 16 insertions(+), 30 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/fw.c b/drivers/net/ethernet/mellanox/mlx5/core/fw.c
index 909a7f284614..4250fd6de6d7 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/fw.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/fw.c
@@ -634,6 +634,7 @@ int mlx5_firmware_flash(struct mlx5_core_dev *dev,
 			.ops = &mlx5_mlxfw_dev_ops,
 			.psid = dev->board_id,
 			.psid_size = strlen(dev->board_id),
+			.devlink = priv_to_devlink(dev),
 		},
 		.mlx5_core_dev = dev
 	};
diff --git a/drivers/net/ethernet/mellanox/mlxfw/Kconfig b/drivers/net/ethernet/mellanox/mlxfw/Kconfig
index 0367f835a846..5b604501f33e 100644
--- a/drivers/net/ethernet/mellanox/mlxfw/Kconfig
+++ b/drivers/net/ethernet/mellanox/mlxfw/Kconfig
@@ -12,3 +12,4 @@ config MLXFW
 	  To compile this driver as a module, choose M here: the
 	  module will be called mlxfw.
 	select XZ_DEC
+	select NET_DEVLINK
diff --git a/drivers/net/ethernet/mellanox/mlxfw/mlxfw.h b/drivers/net/ethernet/mellanox/mlxfw/mlxfw.h
index c50e74ab02c4..cd88fd257501 100644
--- a/drivers/net/ethernet/mellanox/mlxfw/mlxfw.h
+++ b/drivers/net/ethernet/mellanox/mlxfw/mlxfw.h
@@ -6,6 +6,7 @@
 
 #include <linux/firmware.h>
 #include <linux/netlink.h>
+#include <net/devlink.h>
 
 enum mlxfw_fsm_state {
 	MLXFW_FSM_STATE_IDLE,
@@ -58,16 +59,13 @@ struct mlxfw_dev_ops {
 	void (*fsm_cancel)(struct mlxfw_dev *mlxfw_dev, u32 fwhandle);
 
 	void (*fsm_release)(struct mlxfw_dev *mlxfw_dev, u32 fwhandle);
-
-	void (*status_notify)(struct mlxfw_dev *mlxfw_dev,
-			      const char *msg, const char *comp_name,
-			      u32 done_bytes, u32 total_bytes);
 };
 
 struct mlxfw_dev {
 	const struct mlxfw_dev_ops *ops;
 	const char *psid;
 	u16 psid_size;
+	struct devlink *devlink;
 };
 
 #if IS_REACHABLE(CONFIG_MLXFW)
diff --git a/drivers/net/ethernet/mellanox/mlxfw/mlxfw_fsm.c b/drivers/net/ethernet/mellanox/mlxfw/mlxfw_fsm.c
index 29e95d0a6ad1..55211ad1c39d 100644
--- a/drivers/net/ethernet/mellanox/mlxfw/mlxfw_fsm.c
+++ b/drivers/net/ethernet/mellanox/mlxfw/mlxfw_fsm.c
@@ -39,16 +39,6 @@ static const char * const mlxfw_fsm_state_err_str[] = {
 		"unknown error"
 };
 
-static void mlxfw_status_notify(struct mlxfw_dev *mlxfw_dev,
-				const char *msg, const char *comp_name,
-				u32 done_bytes, u32 total_bytes)
-{
-	if (!mlxfw_dev->ops->status_notify)
-		return;
-	mlxfw_dev->ops->status_notify(mlxfw_dev, msg, comp_name,
-				      done_bytes, total_bytes);
-}
-
 static int mlxfw_fsm_state_wait(struct mlxfw_dev *mlxfw_dev, u32 fwhandle,
 				enum mlxfw_fsm_state fsm_state,
 				struct netlink_ext_ack *extack)
@@ -85,6 +75,14 @@ static int mlxfw_fsm_state_wait(struct mlxfw_dev *mlxfw_dev, u32 fwhandle,
 	return 0;
 }
 
+static void mlxfw_status_notify(struct mlxfw_dev *mlxfw_dev,
+				const char *msg, const char *comp_name,
+				u32 done_bytes, u32 total_bytes)
+{
+	devlink_flash_update_status_notify(mlxfw_dev->devlink, msg, comp_name,
+					   done_bytes, total_bytes);
+}
+
 #define MLXFW_ALIGN_DOWN(x, align_bits) ((x) & ~((1 << (align_bits)) - 1))
 #define MLXFW_ALIGN_UP(x, align_bits) \
 		MLXFW_ALIGN_DOWN((x) + ((1 << (align_bits)) - 1), (align_bits))
@@ -225,6 +223,7 @@ int mlxfw_firmware_flash(struct mlxfw_dev *mlxfw_dev,
 		return PTR_ERR(mfa2_file);
 
 	pr_info("Initialize firmware flash process\n");
+	devlink_flash_update_begin_notify(mlxfw_dev->devlink);
 	mlxfw_status_notify(mlxfw_dev, "Initializing firmware flash process",
 			    NULL, 0, 0);
 	err = mlxfw_dev->ops->fsm_lock(mlxfw_dev, &fwhandle);
@@ -263,6 +262,7 @@ int mlxfw_firmware_flash(struct mlxfw_dev *mlxfw_dev,
 	pr_info("Firmware flash done.\n");
 	mlxfw_status_notify(mlxfw_dev, "Firmware flash done", NULL, 0, 0);
 	mlxfw_mfa2_file_fini(mfa2_file);
+	devlink_flash_update_end_notify(mlxfw_dev->devlink);
 	return 0;
 
 err_state_wait_activate_to_locked:
@@ -272,6 +272,7 @@ int mlxfw_firmware_flash(struct mlxfw_dev *mlxfw_dev,
 	mlxfw_dev->ops->fsm_release(mlxfw_dev, fwhandle);
 err_fsm_lock:
 	mlxfw_mfa2_file_fini(mfa2_file);
+	devlink_flash_update_end_notify(mlxfw_dev->devlink);
 	return err;
 }
 EXPORT_SYMBOL(mlxfw_firmware_flash);
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum.c
index d78e790ba94a..0e399b068435 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum.c
@@ -347,19 +347,6 @@ static void mlxsw_sp_fsm_release(struct mlxfw_dev *mlxfw_dev, u32 fwhandle)
 	mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(mcc), mcc_pl);
 }
 
-static void mlxsw_sp_status_notify(struct mlxfw_dev *mlxfw_dev,
-				   const char *msg, const char *comp_name,
-				   u32 done_bytes, u32 total_bytes)
-{
-	struct mlxsw_sp_mlxfw_dev *mlxsw_sp_mlxfw_dev =
-		container_of(mlxfw_dev, struct mlxsw_sp_mlxfw_dev, mlxfw_dev);
-	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_mlxfw_dev->mlxsw_sp;
-
-	devlink_flash_update_status_notify(priv_to_devlink(mlxsw_sp->core),
-					   msg, comp_name,
-					   done_bytes, total_bytes);
-}
-
 static const struct mlxfw_dev_ops mlxsw_sp_mlxfw_dev_ops = {
 	.component_query	= mlxsw_sp_component_query,
 	.fsm_lock		= mlxsw_sp_fsm_lock,
@@ -370,7 +357,6 @@ static const struct mlxfw_dev_ops mlxsw_sp_mlxfw_dev_ops = {
 	.fsm_query_state	= mlxsw_sp_fsm_query_state,
 	.fsm_cancel		= mlxsw_sp_fsm_cancel,
 	.fsm_release		= mlxsw_sp_fsm_release,
-	.status_notify		= mlxsw_sp_status_notify,
 };
 
 static int mlxsw_sp_firmware_flash(struct mlxsw_sp *mlxsw_sp,
@@ -382,16 +368,15 @@ static int mlxsw_sp_firmware_flash(struct mlxsw_sp *mlxsw_sp,
 			.ops = &mlxsw_sp_mlxfw_dev_ops,
 			.psid = mlxsw_sp->bus_info->psid,
 			.psid_size = strlen(mlxsw_sp->bus_info->psid),
+			.devlink = priv_to_devlink(mlxsw_sp->core),
 		},
 		.mlxsw_sp = mlxsw_sp
 	};
 	int err;
 
 	mlxsw_core_fw_flash_start(mlxsw_sp->core);
-	devlink_flash_update_begin_notify(priv_to_devlink(mlxsw_sp->core));
 	err = mlxfw_firmware_flash(&mlxsw_sp_mlxfw_dev.mlxfw_dev,
 				   firmware, extack);
-	devlink_flash_update_end_notify(priv_to_devlink(mlxsw_sp->core));
 	mlxsw_core_fw_flash_end(mlxsw_sp->core);
 
 	return err;
-- 
2.24.1

[PATCH net-next V2 2/7] net/mlxfw: Improve FSM err message reporting and return codes

[Saeed Mahameed]

Report unique and standard error codes corresponding to the specific
FW flash error. In addition, add a more detailed error messages to
netlink.

Before:
$ devlink dev flash pci/0000:05:00.0 file ...
Error: mlxfw: Firmware flash failed.
devlink answers: Invalid argument

After:
$ devlink dev flash pci/0000:05:00.0 file ...
Error: mlxfw: Firmware flash failed: pending reset.
devlink answers: Device busy

Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
---
 .../net/ethernet/mellanox/mlxfw/mlxfw_fsm.c   | 94 +++++++++++++------
 1 file changed, 65 insertions(+), 29 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlxfw/mlxfw_fsm.c b/drivers/net/ethernet/mellanox/mlxfw/mlxfw_fsm.c
index 55211ad1c39d..cc5ea5ffdbba 100644
--- a/drivers/net/ethernet/mellanox/mlxfw/mlxfw_fsm.c
+++ b/drivers/net/ethernet/mellanox/mlxfw/mlxfw_fsm.c
@@ -16,27 +16,68 @@
 	(MLXFW_FSM_STATE_WAIT_TIMEOUT_MS / MLXFW_FSM_STATE_WAIT_CYCLE_MS)
 #define MLXFW_FSM_MAX_COMPONENT_SIZE (10 * (1 << 20))
 
-static const char * const mlxfw_fsm_state_err_str[] = {
-	[MLXFW_FSM_STATE_ERR_ERROR] =
-		"general error",
-	[MLXFW_FSM_STATE_ERR_REJECTED_DIGEST_ERR] =
-		"component hash mismatch",
-	[MLXFW_FSM_STATE_ERR_REJECTED_NOT_APPLICABLE] =
-		"component not applicable",
-	[MLXFW_FSM_STATE_ERR_REJECTED_UNKNOWN_KEY] =
-		"unknown key",
-	[MLXFW_FSM_STATE_ERR_REJECTED_AUTH_FAILED] =
-		"authentication failed",
-	[MLXFW_FSM_STATE_ERR_REJECTED_UNSIGNED] =
-		"component was not signed",
-	[MLXFW_FSM_STATE_ERR_REJECTED_KEY_NOT_APPLICABLE] =
-		"key not applicable",
-	[MLXFW_FSM_STATE_ERR_REJECTED_BAD_FORMAT] =
-		"bad format",
-	[MLXFW_FSM_STATE_ERR_BLOCKED_PENDING_RESET] =
-		"pending reset",
-	[MLXFW_FSM_STATE_ERR_MAX] =
-		"unknown error"
+static const int mlxfw_fsm_state_errno[] = {
+	[MLXFW_FSM_STATE_ERR_ERROR] = -EIO,
+	[MLXFW_FSM_STATE_ERR_REJECTED_DIGEST_ERR] = -EBADMSG,
+	[MLXFW_FSM_STATE_ERR_REJECTED_NOT_APPLICABLE] = -ENOENT,
+	[MLXFW_FSM_STATE_ERR_REJECTED_UNKNOWN_KEY] = -ENOKEY,
+	[MLXFW_FSM_STATE_ERR_REJECTED_AUTH_FAILED] = -EACCES,
+	[MLXFW_FSM_STATE_ERR_REJECTED_UNSIGNED] = -EKEYREVOKED,
+	[MLXFW_FSM_STATE_ERR_REJECTED_KEY_NOT_APPLICABLE] = -EKEYREJECTED,
+	[MLXFW_FSM_STATE_ERR_REJECTED_BAD_FORMAT] = -ENOEXEC,
+	[MLXFW_FSM_STATE_ERR_BLOCKED_PENDING_RESET] = -EBUSY,
+	[MLXFW_FSM_STATE_ERR_MAX] = -EINVAL
+};
+
+#define MLXFW_ERR_PRFX "Firmware flash failed: "
+#define MLXFW_ERR_MSG(extack, msg, err) do { \
+	pr_err("%s, err (%d)\n", MLXFW_ERR_PRFX msg, err); \
+	NL_SET_ERR_MSG_MOD(extack, MLXFW_ERR_PRFX msg); \
+} while (0)
+
+static int mlxfw_fsm_state_err(struct netlink_ext_ack *extack,
+			       enum mlxfw_fsm_state_err err)
+{
+	enum mlxfw_fsm_state_err fsm_state_err;
+
+	fsm_state_err = min_t(enum mlxfw_fsm_state_err, err,
+			      MLXFW_FSM_STATE_ERR_MAX);
+
+	switch (fsm_state_err) {
+	case MLXFW_FSM_STATE_ERR_ERROR:
+		MLXFW_ERR_MSG(extack, "general error", err);
+		break;
+	case MLXFW_FSM_STATE_ERR_REJECTED_DIGEST_ERR:
+		MLXFW_ERR_MSG(extack, "component hash mismatch", err);
+		break;
+	case MLXFW_FSM_STATE_ERR_REJECTED_NOT_APPLICABLE:
+		MLXFW_ERR_MSG(extack, "component not applicable", err);
+		break;
+	case MLXFW_FSM_STATE_ERR_REJECTED_UNKNOWN_KEY:
+		MLXFW_ERR_MSG(extack, "unknown key", err);
+		break;
+	case MLXFW_FSM_STATE_ERR_REJECTED_AUTH_FAILED:
+		MLXFW_ERR_MSG(extack, "authentication failed", err);
+		break;
+	case MLXFW_FSM_STATE_ERR_REJECTED_UNSIGNED:
+		MLXFW_ERR_MSG(extack, "component was not signed", err);
+		break;
+	case MLXFW_FSM_STATE_ERR_REJECTED_KEY_NOT_APPLICABLE:
+		MLXFW_ERR_MSG(extack, "key not applicable", err);
+		break;
+	case MLXFW_FSM_STATE_ERR_REJECTED_BAD_FORMAT:
+		MLXFW_ERR_MSG(extack, "bad format", err);
+		break;
+	case MLXFW_FSM_STATE_ERR_BLOCKED_PENDING_RESET:
+		MLXFW_ERR_MSG(extack, "pending reset", err);
+		break;
+	case MLXFW_FSM_STATE_ERR_OK: /* fall through */
+	case MLXFW_FSM_STATE_ERR_MAX:
+		MLXFW_ERR_MSG(extack, "unknown error", err);
+		break;
+	};
+
+	return mlxfw_fsm_state_errno[fsm_state_err];
 };
 
 static int mlxfw_fsm_state_wait(struct mlxfw_dev *mlxfw_dev, u32 fwhandle,
@@ -55,14 +96,9 @@ static int mlxfw_fsm_state_wait(struct mlxfw_dev *mlxfw_dev, u32 fwhandle,
 	if (err)
 		return err;
 
-	if (fsm_state_err != MLXFW_FSM_STATE_ERR_OK) {
-		fsm_state_err = min_t(enum mlxfw_fsm_state_err,
-				      fsm_state_err, MLXFW_FSM_STATE_ERR_MAX);
-		pr_err("Firmware flash failed: %s\n",
-		       mlxfw_fsm_state_err_str[fsm_state_err]);
-		NL_SET_ERR_MSG_MOD(extack, "Firmware flash failed");
-		return -EINVAL;
-	}
+	if (fsm_state_err != MLXFW_FSM_STATE_ERR_OK)
+		return mlxfw_fsm_state_err(extack, fsm_state_err);
+
 	if (curr_fsm_state != fsm_state) {
 		if (--times == 0) {
 			pr_err("Timeout reached on FSM state change");
-- 
2.24.1

[PATCH net-next V2 3/7] net/mlxfw: More error messages coverage

[Saeed Mahameed]

Make sure mlxfw_firmware_flash reports a detailed user readable error
message in every possible error path, basically every time
mlxfw_dev->ops->*() is called and an error is returned, or when image
initialization is failed.

Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
---
 .../net/ethernet/mellanox/mlxfw/mlxfw_fsm.c   | 35 ++++++++++++++-----
 1 file changed, 26 insertions(+), 9 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlxfw/mlxfw_fsm.c b/drivers/net/ethernet/mellanox/mlxfw/mlxfw_fsm.c
index cc5ea5ffdbba..422619e21183 100644
--- a/drivers/net/ethernet/mellanox/mlxfw/mlxfw_fsm.c
+++ b/drivers/net/ethernet/mellanox/mlxfw/mlxfw_fsm.c
@@ -93,8 +93,10 @@ static int mlxfw_fsm_state_wait(struct mlxfw_dev *mlxfw_dev, u32 fwhandle,
 retry:
 	err = mlxfw_dev->ops->fsm_query_state(mlxfw_dev, fwhandle,
 					      &curr_fsm_state, &fsm_state_err);
-	if (err)
+	if (err) {
+		NL_SET_ERR_MSG_MOD(extack, "FSM state query failed");
 		return err;
+	}
 
 	if (fsm_state_err != MLXFW_FSM_STATE_ERR_OK)
 		return mlxfw_fsm_state_err(extack, fsm_state_err);
@@ -142,8 +144,10 @@ static int mlxfw_flash_component(struct mlxfw_dev *mlxfw_dev,
 	err = mlxfw_dev->ops->component_query(mlxfw_dev, comp->index,
 					      &comp_max_size, &comp_align_bits,
 					      &comp_max_write_size);
-	if (err)
+	if (err) {
+		NL_SET_ERR_MSG_MOD(extack, "FSM component query failed");
 		return err;
+	}
 
 	comp_max_size = min_t(u32, comp_max_size, MLXFW_FSM_MAX_COMPONENT_SIZE);
 	if (comp->data_size > comp_max_size) {
@@ -161,8 +165,10 @@ static int mlxfw_flash_component(struct mlxfw_dev *mlxfw_dev,
 	err = mlxfw_dev->ops->fsm_component_update(mlxfw_dev, fwhandle,
 						   comp->index,
 						   comp->data_size);
-	if (err)
+	if (err) {
+		NL_SET_ERR_MSG_MOD(extack, "FSM component update failed");
 		return err;
+	}
 
 	err = mlxfw_fsm_state_wait(mlxfw_dev, fwhandle,
 				   MLXFW_FSM_STATE_DOWNLOAD, extack);
@@ -181,8 +187,10 @@ static int mlxfw_flash_component(struct mlxfw_dev *mlxfw_dev,
 		err = mlxfw_dev->ops->fsm_block_download(mlxfw_dev, fwhandle,
 							 block_ptr, block_size,
 							 offset);
-		if (err)
+		if (err) {
+			NL_SET_ERR_MSG_MOD(extack, "Component download failed");
 			goto err_out;
+		}
 		mlxfw_status_notify(mlxfw_dev, "Downloading component",
 				    comp_name, offset + block_size,
 				    comp->data_size);
@@ -192,8 +200,10 @@ static int mlxfw_flash_component(struct mlxfw_dev *mlxfw_dev,
 	mlxfw_status_notify(mlxfw_dev, "Verifying component", comp_name, 0, 0);
 	err = mlxfw_dev->ops->fsm_component_verify(mlxfw_dev, fwhandle,
 						   comp->index);
-	if (err)
+	if (err) {
+		NL_SET_ERR_MSG_MOD(extack, "FSM component verify failed");
 		goto err_out;
+	}
 
 	err = mlxfw_fsm_state_wait(mlxfw_dev, fwhandle,
 				   MLXFW_FSM_STATE_LOCKED, extack);
@@ -228,8 +238,11 @@ static int mlxfw_flash_components(struct mlxfw_dev *mlxfw_dev, u32 fwhandle,
 
 		comp = mlxfw_mfa2_file_component_get(mfa2_file, mlxfw_dev->psid,
 						     mlxfw_dev->psid_size, i);
-		if (IS_ERR(comp))
-			return PTR_ERR(comp);
+		if (IS_ERR(comp)) {
+			err = PTR_ERR(comp);
+			NL_SET_ERR_MSG_MOD(extack, "Failed to get MFA2 component");
+			return err;
+		}
 
 		pr_info("Flashing component type %d\n", comp->index);
 		err = mlxfw_flash_component(mlxfw_dev, fwhandle, comp, extack);
@@ -255,8 +268,12 @@ int mlxfw_firmware_flash(struct mlxfw_dev *mlxfw_dev,
 	}
 
 	mfa2_file = mlxfw_mfa2_file_init(firmware);
-	if (IS_ERR(mfa2_file))
-		return PTR_ERR(mfa2_file);
+	if (IS_ERR(mfa2_file)) {
+		err = PTR_ERR(mfa2_file);
+		NL_SET_ERR_MSG_MOD(extack,
+				   "Failed to initialize MFA2 firmware file");
+		return err;
+	}
 
 	pr_info("Initialize firmware flash process\n");
 	devlink_flash_update_begin_notify(mlxfw_dev->devlink);
-- 
2.24.1

[PATCH net-next V2 4/7] net/mlxfw: Convert pr_* to dev_* in mlxfw_fsm.c

[Saeed Mahameed]

Introduce mlxfw_{info, err, dbg} macros and make them call corresponding
dev_* macros, then convert all instances of pr_* to mlxfw_*.

This will allow printing the device name mlxfw is operating on.

Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
---
 drivers/net/ethernet/mellanox/mlxfw/mlxfw.h   | 32 +++++++---
 .../net/ethernet/mellanox/mlxfw/mlxfw_fsm.c   | 60 ++++++++++---------
 2 files changed, 54 insertions(+), 38 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlxfw/mlxfw.h b/drivers/net/ethernet/mellanox/mlxfw/mlxfw.h
index cd88fd257501..a0a63e0c5aca 100644
--- a/drivers/net/ethernet/mellanox/mlxfw/mlxfw.h
+++ b/drivers/net/ethernet/mellanox/mlxfw/mlxfw.h
@@ -6,8 +6,31 @@
 
 #include <linux/firmware.h>
 #include <linux/netlink.h>
+#include <linux/device.h>
 #include <net/devlink.h>
 
+struct mlxfw_dev {
+	const struct mlxfw_dev_ops *ops;
+	const char *psid;
+	u16 psid_size;
+	struct devlink *devlink;
+};
+
+static inline
+struct device *mlxfw_dev_dev(struct mlxfw_dev *mlxfw_dev)
+{
+	return mlxfw_dev->devlink->dev;
+}
+
+#define MLXFW_PRFX "mlxfw: "
+
+#define mlxfw_info(mlxfw_dev, fmt, ...) \
+	dev_info(mlxfw_dev_dev(mlxfw_dev), MLXFW_PRFX fmt, ## __VA_ARGS__)
+#define mlxfw_err(mlxfw_dev, fmt, ...) \
+	dev_err(mlxfw_dev_dev(mlxfw_dev), MLXFW_PRFX fmt, ## __VA_ARGS__)
+#define mlxfw_dbg(mlxfw_dev, fmt, ...) \
+	dev_dbg(mlxfw_dev_dev(mlxfw_dev), MLXFW_PRFX fmt, ## __VA_ARGS__)
+
 enum mlxfw_fsm_state {
 	MLXFW_FSM_STATE_IDLE,
 	MLXFW_FSM_STATE_LOCKED,
@@ -32,8 +55,6 @@ enum mlxfw_fsm_state_err {
 	MLXFW_FSM_STATE_ERR_MAX,
 };
 
-struct mlxfw_dev;
-
 struct mlxfw_dev_ops {
 	int (*component_query)(struct mlxfw_dev *mlxfw_dev, u16 component_index,
 			       u32 *p_max_size, u8 *p_align_bits,
@@ -61,13 +82,6 @@ struct mlxfw_dev_ops {
 	void (*fsm_release)(struct mlxfw_dev *mlxfw_dev, u32 fwhandle);
 };
 
-struct mlxfw_dev {
-	const struct mlxfw_dev_ops *ops;
-	const char *psid;
-	u16 psid_size;
-	struct devlink *devlink;
-};
-
 #if IS_REACHABLE(CONFIG_MLXFW)
 int mlxfw_firmware_flash(struct mlxfw_dev *mlxfw_dev,
 			 const struct firmware *firmware,
diff --git a/drivers/net/ethernet/mellanox/mlxfw/mlxfw_fsm.c b/drivers/net/ethernet/mellanox/mlxfw/mlxfw_fsm.c
index 422619e21183..01d5dec6633e 100644
--- a/drivers/net/ethernet/mellanox/mlxfw/mlxfw_fsm.c
+++ b/drivers/net/ethernet/mellanox/mlxfw/mlxfw_fsm.c
@@ -30,12 +30,13 @@ static const int mlxfw_fsm_state_errno[] = {
 };
 
 #define MLXFW_ERR_PRFX "Firmware flash failed: "
-#define MLXFW_ERR_MSG(extack, msg, err) do { \
-	pr_err("%s, err (%d)\n", MLXFW_ERR_PRFX msg, err); \
+#define MLXFW_ERR_MSG(fwdev, extack, msg, err) do { \
+	mlxfw_err(fwdev, "%s, err (%d)\n", MLXFW_ERR_PRFX msg, err); \
 	NL_SET_ERR_MSG_MOD(extack, MLXFW_ERR_PRFX msg); \
 } while (0)
 
-static int mlxfw_fsm_state_err(struct netlink_ext_ack *extack,
+static int mlxfw_fsm_state_err(struct mlxfw_dev *mlxfw_dev,
+			       struct netlink_ext_ack *extack,
 			       enum mlxfw_fsm_state_err err)
 {
 	enum mlxfw_fsm_state_err fsm_state_err;
@@ -45,35 +46,35 @@ static int mlxfw_fsm_state_err(struct netlink_ext_ack *extack,
 
 	switch (fsm_state_err) {
 	case MLXFW_FSM_STATE_ERR_ERROR:
-		MLXFW_ERR_MSG(extack, "general error", err);
+		MLXFW_ERR_MSG(mlxfw_dev, extack, "general error", err);
 		break;
 	case MLXFW_FSM_STATE_ERR_REJECTED_DIGEST_ERR:
-		MLXFW_ERR_MSG(extack, "component hash mismatch", err);
+		MLXFW_ERR_MSG(mlxfw_dev, extack, "component hash mismatch", err);
 		break;
 	case MLXFW_FSM_STATE_ERR_REJECTED_NOT_APPLICABLE:
-		MLXFW_ERR_MSG(extack, "component not applicable", err);
+		MLXFW_ERR_MSG(mlxfw_dev, extack, "component not applicable", err);
 		break;
 	case MLXFW_FSM_STATE_ERR_REJECTED_UNKNOWN_KEY:
-		MLXFW_ERR_MSG(extack, "unknown key", err);
+		MLXFW_ERR_MSG(mlxfw_dev, extack, "unknown key", err);
 		break;
 	case MLXFW_FSM_STATE_ERR_REJECTED_AUTH_FAILED:
-		MLXFW_ERR_MSG(extack, "authentication failed", err);
+		MLXFW_ERR_MSG(mlxfw_dev, extack, "authentication failed", err);
 		break;
 	case MLXFW_FSM_STATE_ERR_REJECTED_UNSIGNED:
-		MLXFW_ERR_MSG(extack, "component was not signed", err);
+		MLXFW_ERR_MSG(mlxfw_dev, extack, "component was not signed", err);
 		break;
 	case MLXFW_FSM_STATE_ERR_REJECTED_KEY_NOT_APPLICABLE:
-		MLXFW_ERR_MSG(extack, "key not applicable", err);
+		MLXFW_ERR_MSG(mlxfw_dev, extack, "key not applicable", err);
 		break;
 	case MLXFW_FSM_STATE_ERR_REJECTED_BAD_FORMAT:
-		MLXFW_ERR_MSG(extack, "bad format", err);
+		MLXFW_ERR_MSG(mlxfw_dev, extack, "bad format", err);
 		break;
 	case MLXFW_FSM_STATE_ERR_BLOCKED_PENDING_RESET:
-		MLXFW_ERR_MSG(extack, "pending reset", err);
+		MLXFW_ERR_MSG(mlxfw_dev, extack, "pending reset", err);
 		break;
 	case MLXFW_FSM_STATE_ERR_OK: /* fall through */
 	case MLXFW_FSM_STATE_ERR_MAX:
-		MLXFW_ERR_MSG(extack, "unknown error", err);
+		MLXFW_ERR_MSG(mlxfw_dev, extack, "unknown error", err);
 		break;
 	};
 
@@ -99,11 +100,11 @@ static int mlxfw_fsm_state_wait(struct mlxfw_dev *mlxfw_dev, u32 fwhandle,
 	}
 
 	if (fsm_state_err != MLXFW_FSM_STATE_ERR_OK)
-		return mlxfw_fsm_state_err(extack, fsm_state_err);
+		return mlxfw_fsm_state_err(mlxfw_dev, extack, fsm_state_err);
 
 	if (curr_fsm_state != fsm_state) {
 		if (--times == 0) {
-			pr_err("Timeout reached on FSM state change");
+			mlxfw_err(mlxfw_dev, "Timeout reached on FSM state change\n");
 			NL_SET_ERR_MSG_MOD(extack, "Timeout reached on FSM state change");
 			return -ETIMEDOUT;
 		}
@@ -151,8 +152,8 @@ static int mlxfw_flash_component(struct mlxfw_dev *mlxfw_dev,
 
 	comp_max_size = min_t(u32, comp_max_size, MLXFW_FSM_MAX_COMPONENT_SIZE);
 	if (comp->data_size > comp_max_size) {
-		pr_err("Component %d is of size %d which is bigger than limit %d\n",
-		       comp->index, comp->data_size, comp_max_size);
+		mlxfw_err(mlxfw_dev, "Component %d is of size %d which is bigger than limit %d\n",
+			  comp->index, comp->data_size, comp_max_size);
 		NL_SET_ERR_MSG_MOD(extack, "Component is bigger than limit");
 		return -EINVAL;
 	}
@@ -160,7 +161,7 @@ static int mlxfw_flash_component(struct mlxfw_dev *mlxfw_dev,
 	comp_max_write_size = MLXFW_ALIGN_DOWN(comp_max_write_size,
 					       comp_align_bits);
 
-	pr_debug("Component update\n");
+	mlxfw_dbg(mlxfw_dev, "Component update\n");
 	mlxfw_status_notify(mlxfw_dev, "Updating component", comp_name, 0, 0);
 	err = mlxfw_dev->ops->fsm_component_update(mlxfw_dev, fwhandle,
 						   comp->index,
@@ -175,7 +176,7 @@ static int mlxfw_flash_component(struct mlxfw_dev *mlxfw_dev,
 	if (err)
 		goto err_out;
 
-	pr_debug("Component download\n");
+	mlxfw_dbg(mlxfw_dev, "Component download\n");
 	mlxfw_status_notify(mlxfw_dev, "Downloading component",
 			    comp_name, 0, comp->data_size);
 	for (offset = 0;
@@ -196,7 +197,7 @@ static int mlxfw_flash_component(struct mlxfw_dev *mlxfw_dev,
 				    comp->data_size);
 	}
 
-	pr_debug("Component verify\n");
+	mlxfw_dbg(mlxfw_dev, "Component verify\n");
 	mlxfw_status_notify(mlxfw_dev, "Verifying component", comp_name, 0, 0);
 	err = mlxfw_dev->ops->fsm_component_verify(mlxfw_dev, fwhandle,
 						   comp->index);
@@ -228,7 +229,7 @@ static int mlxfw_flash_components(struct mlxfw_dev *mlxfw_dev, u32 fwhandle,
 					      mlxfw_dev->psid_size,
 					      &component_count);
 	if (err) {
-		pr_err("Could not find device PSID in MFA2 file\n");
+		mlxfw_err(mlxfw_dev, "Could not find device PSID in MFA2 file\n");
 		NL_SET_ERR_MSG_MOD(extack, "Could not find device PSID in MFA2 file");
 		return err;
 	}
@@ -244,7 +245,8 @@ static int mlxfw_flash_components(struct mlxfw_dev *mlxfw_dev, u32 fwhandle,
 			return err;
 		}
 
-		pr_info("Flashing component type %d\n", comp->index);
+		mlxfw_info(mlxfw_dev, "Flashing component type %d\n",
+			   comp->index);
 		err = mlxfw_flash_component(mlxfw_dev, fwhandle, comp, extack);
 		mlxfw_mfa2_file_component_put(comp);
 		if (err)
@@ -262,7 +264,7 @@ int mlxfw_firmware_flash(struct mlxfw_dev *mlxfw_dev,
 	int err;
 
 	if (!mlxfw_mfa2_check(firmware)) {
-		pr_err("Firmware file is not MFA2\n");
+		mlxfw_err(mlxfw_dev, "Firmware file is not MFA2\n");
 		NL_SET_ERR_MSG_MOD(extack, "Firmware file is not MFA2");
 		return -EINVAL;
 	}
@@ -275,13 +277,13 @@ int mlxfw_firmware_flash(struct mlxfw_dev *mlxfw_dev,
 		return err;
 	}
 
-	pr_info("Initialize firmware flash process\n");
+	mlxfw_info(mlxfw_dev, "Initialize firmware flash process\n");
 	devlink_flash_update_begin_notify(mlxfw_dev->devlink);
 	mlxfw_status_notify(mlxfw_dev, "Initializing firmware flash process",
 			    NULL, 0, 0);
 	err = mlxfw_dev->ops->fsm_lock(mlxfw_dev, &fwhandle);
 	if (err) {
-		pr_err("Could not lock the firmware FSM\n");
+		mlxfw_err(mlxfw_dev, "Could not lock the firmware FSM\n");
 		NL_SET_ERR_MSG_MOD(extack, "Could not lock the firmware FSM");
 		goto err_fsm_lock;
 	}
@@ -295,11 +297,11 @@ int mlxfw_firmware_flash(struct mlxfw_dev *mlxfw_dev,
 	if (err)
 		goto err_flash_components;
 
-	pr_debug("Activate image\n");
+	mlxfw_dbg(mlxfw_dev, "Activate image\n");
 	mlxfw_status_notify(mlxfw_dev, "Activating image", NULL, 0, 0);
 	err = mlxfw_dev->ops->fsm_activate(mlxfw_dev, fwhandle);
 	if (err) {
-		pr_err("Could not activate the downloaded image\n");
+		mlxfw_err(mlxfw_dev, "Could not activate the downloaded image\n");
 		NL_SET_ERR_MSG_MOD(extack, "Could not activate the downloaded image");
 		goto err_fsm_activate;
 	}
@@ -309,10 +311,10 @@ int mlxfw_firmware_flash(struct mlxfw_dev *mlxfw_dev,
 	if (err)
 		goto err_state_wait_activate_to_locked;
 
-	pr_debug("Handle release\n");
+	mlxfw_dbg(mlxfw_dev, "Handle release\n");
 	mlxfw_dev->ops->fsm_release(mlxfw_dev, fwhandle);
 
-	pr_info("Firmware flash done.\n");
+	mlxfw_info(mlxfw_dev, "Firmware flash done\n");
 	mlxfw_status_notify(mlxfw_dev, "Firmware flash done", NULL, 0, 0);
 	mlxfw_mfa2_file_fini(mfa2_file);
 	devlink_flash_update_end_notify(mlxfw_dev->devlink);
-- 
2.24.1

[PATCH net-next V2 5/7] net/mlxfw: Use MLXFW_ERR_MSG macro for error reporting

[Saeed Mahameed]

Instead of always calling both mlxfw_err and NL_SET_ERR_MSG_MOD with the
same message, use the dedicated macro instead.

Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
---
 .../net/ethernet/mellanox/mlxfw/mlxfw_fsm.c   | 45 ++++++++++---------
 1 file changed, 24 insertions(+), 21 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlxfw/mlxfw_fsm.c b/drivers/net/ethernet/mellanox/mlxfw/mlxfw_fsm.c
index 01d5dec6633e..141d83b25ef3 100644
--- a/drivers/net/ethernet/mellanox/mlxfw/mlxfw_fsm.c
+++ b/drivers/net/ethernet/mellanox/mlxfw/mlxfw_fsm.c
@@ -95,7 +95,7 @@ static int mlxfw_fsm_state_wait(struct mlxfw_dev *mlxfw_dev, u32 fwhandle,
 	err = mlxfw_dev->ops->fsm_query_state(mlxfw_dev, fwhandle,
 					      &curr_fsm_state, &fsm_state_err);
 	if (err) {
-		NL_SET_ERR_MSG_MOD(extack, "FSM state query failed");
+		MLXFW_ERR_MSG(mlxfw_dev, extack, "FSM state query failed", err);
 		return err;
 	}
 
@@ -104,8 +104,8 @@ static int mlxfw_fsm_state_wait(struct mlxfw_dev *mlxfw_dev, u32 fwhandle,
 
 	if (curr_fsm_state != fsm_state) {
 		if (--times == 0) {
-			mlxfw_err(mlxfw_dev, "Timeout reached on FSM state change\n");
-			NL_SET_ERR_MSG_MOD(extack, "Timeout reached on FSM state change");
+			MLXFW_ERR_MSG(mlxfw_dev, extack,
+				      "Timeout reached on FSM state change", -ETIMEDOUT);
 			return -ETIMEDOUT;
 		}
 		msleep(MLXFW_FSM_STATE_WAIT_CYCLE_MS);
@@ -146,15 +146,14 @@ static int mlxfw_flash_component(struct mlxfw_dev *mlxfw_dev,
 					      &comp_max_size, &comp_align_bits,
 					      &comp_max_write_size);
 	if (err) {
-		NL_SET_ERR_MSG_MOD(extack, "FSM component query failed");
+		MLXFW_ERR_MSG(mlxfw_dev, extack, "FSM component query failed", err);
 		return err;
 	}
 
 	comp_max_size = min_t(u32, comp_max_size, MLXFW_FSM_MAX_COMPONENT_SIZE);
 	if (comp->data_size > comp_max_size) {
-		mlxfw_err(mlxfw_dev, "Component %d is of size %d which is bigger than limit %d\n",
-			  comp->index, comp->data_size, comp_max_size);
-		NL_SET_ERR_MSG_MOD(extack, "Component is bigger than limit");
+		MLXFW_ERR_MSG(mlxfw_dev, extack,
+			      "Component size is bigger than limit", -EINVAL);
 		return -EINVAL;
 	}
 
@@ -167,7 +166,8 @@ static int mlxfw_flash_component(struct mlxfw_dev *mlxfw_dev,
 						   comp->index,
 						   comp->data_size);
 	if (err) {
-		NL_SET_ERR_MSG_MOD(extack, "FSM component update failed");
+		MLXFW_ERR_MSG(mlxfw_dev, extack,
+			      "FSM component update failed", err);
 		return err;
 	}
 
@@ -189,7 +189,8 @@ static int mlxfw_flash_component(struct mlxfw_dev *mlxfw_dev,
 							 block_ptr, block_size,
 							 offset);
 		if (err) {
-			NL_SET_ERR_MSG_MOD(extack, "Component download failed");
+			MLXFW_ERR_MSG(mlxfw_dev, extack,
+				      "Component download failed", err);
 			goto err_out;
 		}
 		mlxfw_status_notify(mlxfw_dev, "Downloading component",
@@ -202,7 +203,8 @@ static int mlxfw_flash_component(struct mlxfw_dev *mlxfw_dev,
 	err = mlxfw_dev->ops->fsm_component_verify(mlxfw_dev, fwhandle,
 						   comp->index);
 	if (err) {
-		NL_SET_ERR_MSG_MOD(extack, "FSM component verify failed");
+		MLXFW_ERR_MSG(mlxfw_dev, extack,
+			      "FSM component verify failed", err);
 		goto err_out;
 	}
 
@@ -229,8 +231,8 @@ static int mlxfw_flash_components(struct mlxfw_dev *mlxfw_dev, u32 fwhandle,
 					      mlxfw_dev->psid_size,
 					      &component_count);
 	if (err) {
-		mlxfw_err(mlxfw_dev, "Could not find device PSID in MFA2 file\n");
-		NL_SET_ERR_MSG_MOD(extack, "Could not find device PSID in MFA2 file");
+		MLXFW_ERR_MSG(mlxfw_dev, extack,
+			      "Could not find device PSID in MFA2 file", err);
 		return err;
 	}
 
@@ -241,7 +243,8 @@ static int mlxfw_flash_components(struct mlxfw_dev *mlxfw_dev, u32 fwhandle,
 						     mlxfw_dev->psid_size, i);
 		if (IS_ERR(comp)) {
 			err = PTR_ERR(comp);
-			NL_SET_ERR_MSG_MOD(extack, "Failed to get MFA2 component");
+			MLXFW_ERR_MSG(mlxfw_dev, extack,
+				      "Failed to get MFA2 component", err);
 			return err;
 		}
 
@@ -264,16 +267,16 @@ int mlxfw_firmware_flash(struct mlxfw_dev *mlxfw_dev,
 	int err;
 
 	if (!mlxfw_mfa2_check(firmware)) {
-		mlxfw_err(mlxfw_dev, "Firmware file is not MFA2\n");
-		NL_SET_ERR_MSG_MOD(extack, "Firmware file is not MFA2");
+		MLXFW_ERR_MSG(mlxfw_dev, extack,
+			      "Firmware file is not MFA2", -EINVAL);
 		return -EINVAL;
 	}
 
 	mfa2_file = mlxfw_mfa2_file_init(firmware);
 	if (IS_ERR(mfa2_file)) {
 		err = PTR_ERR(mfa2_file);
-		NL_SET_ERR_MSG_MOD(extack,
-				   "Failed to initialize MFA2 firmware file");
+		MLXFW_ERR_MSG(mlxfw_dev, extack,
+			      "Failed to initialize MFA2 firmware file", err);
 		return err;
 	}
 
@@ -283,8 +286,8 @@ int mlxfw_firmware_flash(struct mlxfw_dev *mlxfw_dev,
 			    NULL, 0, 0);
 	err = mlxfw_dev->ops->fsm_lock(mlxfw_dev, &fwhandle);
 	if (err) {
-		mlxfw_err(mlxfw_dev, "Could not lock the firmware FSM\n");
-		NL_SET_ERR_MSG_MOD(extack, "Could not lock the firmware FSM");
+		MLXFW_ERR_MSG(mlxfw_dev, extack,
+			      "Could not lock the firmware FSM", err);
 		goto err_fsm_lock;
 	}
 
@@ -301,8 +304,8 @@ int mlxfw_firmware_flash(struct mlxfw_dev *mlxfw_dev,
 	mlxfw_status_notify(mlxfw_dev, "Activating image", NULL, 0, 0);
 	err = mlxfw_dev->ops->fsm_activate(mlxfw_dev, fwhandle);
 	if (err) {
-		mlxfw_err(mlxfw_dev, "Could not activate the downloaded image\n");
-		NL_SET_ERR_MSG_MOD(extack, "Could not activate the downloaded image");
+		MLXFW_ERR_MSG(mlxfw_dev, extack,
+			      "Could not activate the downloaded image", err);
 		goto err_fsm_activate;
 	}
 
-- 
2.24.1

[PATCH net-next V2 6/7] net/mlxfw: Add reactivate flow support to FSM burn flow

[Saeed Mahameed]

From: Eran Ben Elisha <eranbe@mellanox.com>

Expose fsm_reactivate callback to the mlxfw_dev_ops struct. FSM reactivate
is needed before flashing the new image in order to flush the old flashed
but not running firmware image.

In case mlxfw_dev do not support the reactivation, this step will be
skipped. But if later image flash will fail, a hint will be provided by
the extack to advise the user that the failure might be related to it.

Signed-off-by: Eran Ben Elisha <eranbe@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
---
 drivers/net/ethernet/mellanox/mlxfw/mlxfw.h   |  16 +++
 .../net/ethernet/mellanox/mlxfw/mlxfw_fsm.c   | 107 +++++++++++++++++-
 2 files changed, 119 insertions(+), 4 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlxfw/mlxfw.h b/drivers/net/ethernet/mellanox/mlxfw/mlxfw.h
index a0a63e0c5aca..7654841a05c2 100644
--- a/drivers/net/ethernet/mellanox/mlxfw/mlxfw.h
+++ b/drivers/net/ethernet/mellanox/mlxfw/mlxfw.h
@@ -55,6 +55,20 @@ enum mlxfw_fsm_state_err {
 	MLXFW_FSM_STATE_ERR_MAX,
 };
 
+enum mlxfw_fsm_reactivate_status {
+	MLXFW_FSM_REACTIVATE_STATUS_OK,
+	MLXFW_FSM_REACTIVATE_STATUS_BUSY,
+	MLXFW_FSM_REACTIVATE_STATUS_PROHIBITED_FW_VER_ERR,
+	MLXFW_FSM_REACTIVATE_STATUS_FIRST_PAGE_COPY_FAILED,
+	MLXFW_FSM_REACTIVATE_STATUS_FIRST_PAGE_ERASE_FAILED,
+	MLXFW_FSM_REACTIVATE_STATUS_FIRST_PAGE_RESTORE_FAILED,
+	MLXFW_FSM_REACTIVATE_STATUS_CANDIDATE_FW_DEACTIVATION_FAILED,
+	MLXFW_FSM_REACTIVATE_STATUS_FW_ALREADY_ACTIVATED,
+	MLXFW_FSM_REACTIVATE_STATUS_ERR_DEVICE_RESET_REQUIRED,
+	MLXFW_FSM_REACTIVATE_STATUS_ERR_FW_PROGRAMMING_NEEDED,
+	MLXFW_FSM_REACTIVATE_STATUS_MAX,
+};
+
 struct mlxfw_dev_ops {
 	int (*component_query)(struct mlxfw_dev *mlxfw_dev, u16 component_index,
 			       u32 *p_max_size, u8 *p_align_bits,
@@ -73,6 +87,8 @@ struct mlxfw_dev_ops {
 
 	int (*fsm_activate)(struct mlxfw_dev *mlxfw_dev, u32 fwhandle);
 
+	int (*fsm_reactivate)(struct mlxfw_dev *mlxfw_dev, u8 *status);
+
 	int (*fsm_query_state)(struct mlxfw_dev *mlxfw_dev, u32 fwhandle,
 			       enum mlxfw_fsm_state *fsm_state,
 			       enum mlxfw_fsm_state_err *fsm_state_err);
diff --git a/drivers/net/ethernet/mellanox/mlxfw/mlxfw_fsm.c b/drivers/net/ethernet/mellanox/mlxfw/mlxfw_fsm.c
index 141d83b25ef3..c7e882eb8f35 100644
--- a/drivers/net/ethernet/mellanox/mlxfw/mlxfw_fsm.c
+++ b/drivers/net/ethernet/mellanox/mlxfw/mlxfw_fsm.c
@@ -114,6 +114,84 @@ static int mlxfw_fsm_state_wait(struct mlxfw_dev *mlxfw_dev, u32 fwhandle,
 	return 0;
 }
 
+static int
+mlxfw_fsm_reactivate_err(struct mlxfw_dev *mlxfw_dev,
+			 struct netlink_ext_ack *extack, u8 err)
+{
+	enum mlxfw_fsm_reactivate_status status;
+
+#define MXFW_REACT_PRFX "Reactivate FSM: "
+#define MLXFW_REACT_ERR(msg, err) \
+	MLXFW_ERR_MSG(mlxfw_dev, extack, MXFW_REACT_PRFX msg, err)
+
+	status = min_t(enum mlxfw_fsm_reactivate_status, err,
+		       MLXFW_FSM_REACTIVATE_STATUS_MAX);
+
+	switch (status) {
+	case MLXFW_FSM_REACTIVATE_STATUS_BUSY:
+		MLXFW_REACT_ERR("busy", err);
+		break;
+	case MLXFW_FSM_REACTIVATE_STATUS_PROHIBITED_FW_VER_ERR:
+		MLXFW_REACT_ERR("prohibited fw ver", err);
+		break;
+	case MLXFW_FSM_REACTIVATE_STATUS_FIRST_PAGE_COPY_FAILED:
+		MLXFW_REACT_ERR("first page copy failed", err);
+		break;
+	case MLXFW_FSM_REACTIVATE_STATUS_FIRST_PAGE_ERASE_FAILED:
+		MLXFW_REACT_ERR("first page erase failed", err);
+		break;
+	case MLXFW_FSM_REACTIVATE_STATUS_FIRST_PAGE_RESTORE_FAILED:
+		MLXFW_REACT_ERR("first page restore failed", err);
+		break;
+	case MLXFW_FSM_REACTIVATE_STATUS_CANDIDATE_FW_DEACTIVATION_FAILED:
+		MLXFW_REACT_ERR("candidate fw deactivation failed", err);
+		break;
+	case MLXFW_FSM_REACTIVATE_STATUS_ERR_DEVICE_RESET_REQUIRED:
+		MLXFW_REACT_ERR("device reset required", err);
+		break;
+	case MLXFW_FSM_REACTIVATE_STATUS_ERR_FW_PROGRAMMING_NEEDED:
+		MLXFW_REACT_ERR("fw progamming needed", err);
+		break;
+	case MLXFW_FSM_REACTIVATE_STATUS_FW_ALREADY_ACTIVATED:
+		MLXFW_REACT_ERR("fw already activated", err);
+		break;
+	case MLXFW_FSM_REACTIVATE_STATUS_OK: /* fall through */
+	case MLXFW_FSM_REACTIVATE_STATUS_MAX:
+		MLXFW_REACT_ERR("unexpected error", err);
+		break;
+	};
+	return -EREMOTEIO;
+};
+
+static int mlxfw_fsm_reactivate(struct mlxfw_dev *mlxfw_dev,
+				struct netlink_ext_ack *extack,
+				bool *supported)
+{
+	u8 status;
+	int err;
+
+	if (!mlxfw_dev->ops->fsm_reactivate)
+		return 0;
+
+	err = mlxfw_dev->ops->fsm_reactivate(mlxfw_dev, &status);
+	if (err == -EOPNOTSUPP) {
+		*supported = false;
+		return 0;
+	}
+
+	if (err) {
+		MLXFW_ERR_MSG(mlxfw_dev, extack,
+			      "Could not reactivate firmware flash", err);
+		return err;
+	}
+
+	if (status == MLXFW_FSM_REACTIVATE_STATUS_OK ||
+	    status == MLXFW_FSM_REACTIVATE_STATUS_FW_ALREADY_ACTIVATED)
+		return 0;
+
+	return mlxfw_fsm_reactivate_err(mlxfw_dev, extack, status);
+}
+
 static void mlxfw_status_notify(struct mlxfw_dev *mlxfw_dev,
 				const char *msg, const char *comp_name,
 				u32 done_bytes, u32 total_bytes)
@@ -129,6 +207,7 @@ static void mlxfw_status_notify(struct mlxfw_dev *mlxfw_dev,
 static int mlxfw_flash_component(struct mlxfw_dev *mlxfw_dev,
 				 u32 fwhandle,
 				 struct mlxfw_mfa2_component *comp,
+				 bool reactivate_supp,
 				 struct netlink_ext_ack *extack)
 {
 	u16 comp_max_write_size;
@@ -166,8 +245,13 @@ static int mlxfw_flash_component(struct mlxfw_dev *mlxfw_dev,
 						   comp->index,
 						   comp->data_size);
 	if (err) {
-		MLXFW_ERR_MSG(mlxfw_dev, extack,
-			      "FSM component update failed", err);
+		if (!reactivate_supp)
+			MLXFW_ERR_MSG(mlxfw_dev, extack,
+				      "FSM component update failed, FW reactivate is not supported",
+				      err);
+		else
+			MLXFW_ERR_MSG(mlxfw_dev, extack,
+				      "FSM component update failed", err);
 		return err;
 	}
 
@@ -221,6 +305,7 @@ static int mlxfw_flash_component(struct mlxfw_dev *mlxfw_dev,
 
 static int mlxfw_flash_components(struct mlxfw_dev *mlxfw_dev, u32 fwhandle,
 				  struct mlxfw_mfa2_file *mfa2_file,
+				  bool reactivate_supp,
 				  struct netlink_ext_ack *extack)
 {
 	u32 component_count;
@@ -250,7 +335,8 @@ static int mlxfw_flash_components(struct mlxfw_dev *mlxfw_dev, u32 fwhandle,
 
 		mlxfw_info(mlxfw_dev, "Flashing component type %d\n",
 			   comp->index);
-		err = mlxfw_flash_component(mlxfw_dev, fwhandle, comp, extack);
+		err = mlxfw_flash_component(mlxfw_dev, fwhandle, comp,
+					    reactivate_supp, extack);
 		mlxfw_mfa2_file_component_put(comp);
 		if (err)
 			return err;
@@ -263,6 +349,7 @@ int mlxfw_firmware_flash(struct mlxfw_dev *mlxfw_dev,
 			 struct netlink_ext_ack *extack)
 {
 	struct mlxfw_mfa2_file *mfa2_file;
+	bool reactivate_supp = true;
 	u32 fwhandle;
 	int err;
 
@@ -296,7 +383,17 @@ int mlxfw_firmware_flash(struct mlxfw_dev *mlxfw_dev,
 	if (err)
 		goto err_state_wait_idle_to_locked;
 
-	err = mlxfw_flash_components(mlxfw_dev, fwhandle, mfa2_file, extack);
+	err = mlxfw_fsm_reactivate(mlxfw_dev, extack, &reactivate_supp);
+	if (err)
+		goto err_fsm_reactivate;
+
+	err = mlxfw_fsm_state_wait(mlxfw_dev, fwhandle,
+				   MLXFW_FSM_STATE_LOCKED, extack);
+	if (err)
+		goto err_state_wait_reactivate_to_locked;
+
+	err = mlxfw_flash_components(mlxfw_dev, fwhandle, mfa2_file,
+				     reactivate_supp, extack);
 	if (err)
 		goto err_flash_components;
 
@@ -326,6 +423,8 @@ int mlxfw_firmware_flash(struct mlxfw_dev *mlxfw_dev,
 err_state_wait_activate_to_locked:
 err_fsm_activate:
 err_flash_components:
+err_state_wait_reactivate_to_locked:
+err_fsm_reactivate:
 err_state_wait_idle_to_locked:
 	mlxfw_dev->ops->fsm_release(mlxfw_dev, fwhandle);
 err_fsm_lock:
-- 
2.24.1

[PATCH net-next V2 7/7] net/mlx5: Add fsm_reactivate callback support

[Saeed Mahameed]

From: Eran Ben Elisha <eranbe@mellanox.com>

Add support for fsm reactivate via MIRC (Management Image Re-activation
Control) set and query commands.
For re-activation flow, driver shall first run MIRC set, and then wait
until FW is done (via querying MIRC status).

Signed-off-by: Eran Ben Elisha <eranbe@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
---
 drivers/net/ethernet/mellanox/mlx5/core/fw.c | 39 ++++++++++++++++++++
 1 file changed, 39 insertions(+)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/fw.c b/drivers/net/ethernet/mellanox/mlx5/core/fw.c
index 4250fd6de6d7..90e3d0233101 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/fw.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/fw.c
@@ -613,6 +613,44 @@ static void mlx5_fsm_release(struct mlxfw_dev *mlxfw_dev, u32 fwhandle)
 			 fwhandle, 0);
 }
 
+#define MLX5_FSM_REACTIVATE_TOUT 5000 /* msecs */
+static int mlx5_fsm_reactivate(struct mlxfw_dev *mlxfw_dev, u8 *status)
+{
+	unsigned long exp_time = jiffies + msecs_to_jiffies(MLX5_FSM_REACTIVATE_TOUT);
+	struct mlx5_mlxfw_dev *mlx5_mlxfw_dev =
+		container_of(mlxfw_dev, struct mlx5_mlxfw_dev, mlxfw_dev);
+	struct mlx5_core_dev *dev = mlx5_mlxfw_dev->mlx5_core_dev;
+	u32 out[MLX5_ST_SZ_DW(mirc_reg)];
+	u32 in[MLX5_ST_SZ_DW(mirc_reg)];
+	int err;
+
+	if (!MLX5_CAP_MCAM_REG2(dev, mirc))
+		return -EOPNOTSUPP;
+
+	memset(in, 0, sizeof(in));
+
+	err = mlx5_core_access_reg(dev, in, sizeof(in), out,
+				   sizeof(out), MLX5_REG_MIRC, 0, 1);
+	if (err)
+		return err;
+
+	do {
+		memset(out, 0, sizeof(out));
+		err = mlx5_core_access_reg(dev, in, sizeof(in), out,
+					   sizeof(out), MLX5_REG_MIRC, 0, 0);
+		if (err)
+			return err;
+
+		*status = MLX5_GET(mirc_reg, out, status_code);
+		if (*status != MLXFW_FSM_REACTIVATE_STATUS_BUSY)
+			return 0;
+
+		msleep(20);
+	} while (time_before(jiffies, exp_time));
+
+	return 0;
+}
+
 static const struct mlxfw_dev_ops mlx5_mlxfw_dev_ops = {
 	.component_query	= mlx5_component_query,
 	.fsm_lock		= mlx5_fsm_lock,
@@ -620,6 +658,7 @@ static const struct mlxfw_dev_ops mlx5_mlxfw_dev_ops = {
 	.fsm_block_download	= mlx5_fsm_block_download,
 	.fsm_component_verify	= mlx5_fsm_component_verify,
 	.fsm_activate		= mlx5_fsm_activate,
+	.fsm_reactivate		= mlx5_fsm_reactivate,
 	.fsm_query_state	= mlx5_fsm_query_state,
 	.fsm_cancel		= mlx5_fsm_cancel,
 	.fsm_release		= mlx5_fsm_release
-- 
2.24.1

Re: [PATCH net-next V2 0/7] mlxfw: Improve error reporting and FW reactivate support

[Jakub Kicinski]

On Fri, 21 Feb 2020 21:45:56 +0000 Saeed Mahameed wrote:
> This patchset improves mlxfw error reporting to netlink and to
> kernel log.
> 
> V2:
>  - Use proper err codes, EBUSY/EIO instead of EALREADY/EREMOTEIO
>  - Fix typo.

LGTM, thanks. FWIW:

Reviewed-by: Jakub Kicinski <kuba@kernel.org>

> From Eran and me.
> 
> 1) patch #1, Make mlxfw/mlxsw fw flash devlink status notify generic,
>    and enable it for mlx5.
> 
> 2) patches #2..#5 are improving mlxfw flash error messages by
> reporting detailed mlxfw FSM error messages to netlink and kernel log.
> 
> 3) patches #6,7 From Eran: Add FW reactivate flow to  mlxfw and mlx5

Re: [PATCH net-next V2 0/7] mlxfw: Improve error reporting and FW reactivate support

[David Miller]

From: Saeed Mahameed <saeedm@mellanox.com>
Date: Fri, 21 Feb 2020 21:45:56 +0000

> This patchset improves mlxfw error reporting to netlink and to
> kernel log.
> 
> V2:
>  - Use proper err codes, EBUSY/EIO instead of EALREADY/EREMOTEIO
>  - Fix typo.
> 
> From Eran and me.
> 
> 1) patch #1, Make mlxfw/mlxsw fw flash devlink status notify generic,
>    and enable it for mlx5.
> 
> 2) patches #2..#5 are improving mlxfw flash error messages by
> reporting detailed mlxfw FSM error messages to netlink and kernel log.
> 
> 3) patches #6,7 From Eran: Add FW reactivate flow to  mlxfw and mlx5

Series applied, thanks.