sfc: support devlink flash

index 3cd750820fdd..d842c60dfc10 100644
@@ -19,6 +19,7 @@
 #include "mae.h"
 #include "ef100_rep.h"
 #endif
+#include "efx_reflash.h"
 
 struct efx_devlink {
 	struct efx_nic *efx;

@@ -615,7 +616,19 @@ static int efx_devlink_info_get(struct devlink *devlink,
 	return 0;
 }
 
+static int efx_devlink_flash_update(struct devlink *devlink,
+				    struct devlink_flash_update_params *params,
+				    struct netlink_ext_ack *extack)
+{
+	struct efx_devlink *devlink_private = devlink_priv(devlink);
+	struct efx_nic *efx = devlink_private->efx;
+
+	return efx_reflash_flash_firmware(efx, params->fw, extack);
+}
+
 static const struct devlink_ops sfc_devlink_ops = {
+	.supported_flash_update_params	= 0,
+	.flash_update			= efx_devlink_flash_update,
 	.info_get			= efx_devlink_info_get,
 };
 

289 lines not on this page · raw message

new file mode 100644
index 000000000000..3dffac565161
@@ -0,0 +1,20 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/****************************************************************************
+ * Driver for AMD network controllers and boards
+ * Copyright (C) 2025, Advanced Micro Devices, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation, incorporated herein by reference.
+ */
+
+#ifndef _EFX_REFLASH_H
+#define _EFX_REFLASH_H
+
+#include "net_driver.h"
+#include <linux/firmware.h>
+
+int efx_reflash_flash_firmware(struct efx_nic *efx, const struct firmware *fw,
+			       struct netlink_ext_ack *extack);
+
+#endif /* _EFX_REFLASH_H */

114 lines not on this page · raw message

index 452009ed7a43..47d78abecf30 100644
@@ -3501,7 +3501,7 @@ static int efx_ef10_mtd_probe_partition(struct efx_nic *efx,
 	MCDI_DECLARE_BUF(inbuf, MC_CMD_NVRAM_METADATA_IN_LEN);
 	MCDI_DECLARE_BUF(outbuf, MC_CMD_NVRAM_METADATA_OUT_LENMAX);
 	const struct efx_ef10_nvram_type_info *info;
-	size_t size, erase_size, outlen;
+	size_t size, erase_size, write_size, outlen;
 	int type_idx = 0;
 	bool protected;
 	int rc;

@@ -3516,7 +3516,8 @@ static int efx_ef10_mtd_probe_partition(struct efx_nic *efx,
 	if (info->port != efx_port_num(efx))
 		return -ENODEV;
 
-	rc = efx_mcdi_nvram_info(efx, type, &size, &erase_size, &protected);
+	rc = efx_mcdi_nvram_info(efx, type, &size, &erase_size, &write_size,
+				 &protected);
 	if (rc)
 		return rc;
 	if (protected &&

@@ -3561,6 +3562,8 @@ static int efx_ef10_mtd_probe_partition(struct efx_nic *efx,
 	if (!erase_size)
 		part->common.mtd.flags |= MTD_NO_ERASE;
 
+	part->common.mtd.writesize = write_size;
+
 	return 0;
 }
 

205 lines not on this page · raw message

index cdb17d7c147f..3755cd3fe1e6 100644
@@ -392,7 +392,7 @@ int efx_mcdi_log_ctrl(struct efx_nic *efx, bool evq, bool uart, u32 dest_evq);
 int efx_mcdi_nvram_types(struct efx_nic *efx, u32 *nvram_types_out);
 int efx_mcdi_nvram_info(struct efx_nic *efx, unsigned int type,
 			size_t *size_out, size_t *erase_size_out,
-			bool *protected_out);
+			size_t *write_size_out, bool *protected_out);
 int efx_new_mcdi_nvram_test_all(struct efx_nic *efx);
 int efx_mcdi_nvram_metadata(struct efx_nic *efx, unsigned int type,
 			    u32 *subtype, u16 version[4], char *desc,

@@ -424,6 +424,26 @@ static inline int efx_mcdi_mon_probe(struct efx_nic *efx) { return 0; }
 static inline void efx_mcdi_mon_remove(struct efx_nic *efx) {}
 #endif
 
+int efx_mcdi_nvram_update_start(struct efx_nic *efx, unsigned int type);
+int efx_mcdi_nvram_write(struct efx_nic *efx, unsigned int type,
+			 loff_t offset, const u8 *buffer, size_t length);
+int efx_mcdi_nvram_erase(struct efx_nic *efx, unsigned int type,
+			 loff_t offset, size_t length);
+int efx_mcdi_nvram_metadata(struct efx_nic *efx, unsigned int type,
+			    u32 *subtype, u16 version[4], char *desc,
+			    size_t descsize);
+
+enum efx_update_finish_mode {
+	EFX_UPDATE_FINISH_WAIT,
+	EFX_UPDATE_FINISH_BACKGROUND,
+	EFX_UPDATE_FINISH_POLL,
+	EFX_UPDATE_FINISH_ABORT,
+};
+
+int efx_mcdi_nvram_update_finish(struct efx_nic *efx, unsigned int type,
+				 enum efx_update_finish_mode mode);
+int efx_mcdi_nvram_update_finish_polled(struct efx_nic *efx, unsigned int type);
+
 #ifdef CONFIG_SFC_MTD
 int efx_mcdi_mtd_read(struct mtd_info *mtd, loff_t start, size_t len,
 		      size_t *retlen, u8 *buffer);

index c88ec3e24836..5a14d94163b1 100644
@@ -1003,6 +1003,7 @@ int efx_init_struct(struct efx_nic *efx, struct pci_dev *pci_dev)
 	INIT_LIST_HEAD(&efx->vf_reps);
 	INIT_WORK(&efx->mac_work, efx_mac_work);
 	init_waitqueue_head(&efx->flush_wq);
+	mutex_init(&efx->reflash_mutex);
 
 	efx->tx_queues_per_channel = 1;
 	efx->rxq_entries = EFX_DEFAULT_DMAQ_SIZE;

249 lines not on this page · raw message

index f70a7b7d6345..8b0689f749b5 100644
@@ -1006,6 +1006,7 @@ struct efx_mae;
  * @dl_port: devlink port associated with the PF
  * @mem_bar: The BAR that is mapped into membase.
  * @reg_base: Offset from the start of the bar to the function control window.
+ * @reflash_mutex: Mutex for serialising firmware reflash operations.
  * @monitor_work: Hardware monitor workitem
  * @biu_lock: BIU (bus interface unit) lock
  * @last_irq_cpu: Last CPU to handle a possible test interrupt.  This

@@ -1191,6 +1192,7 @@ struct efx_nic {
 	struct devlink_port *dl_port;
 	unsigned int mem_bar;
 	u32 reg_base;
+	struct mutex reflash_mutex;
 
 	/* The following fields may be written more often */