Commit 14743ddd authored by Alejandro Lucero's avatar Alejandro Lucero Committed by Paolo Abeni
Browse files

sfc: add devlink info support for ef100 



Add devlink info support for ef100. The information reported is obtained
through the MCDI interface with the specific meaning defined in new
documentation file.

Signed-off-by: default avatarAlejandro Lucero <alejandro.lucero-palau@amd.com>
Reviewed-by: default avatarJiri Pirko <jiri@nvidia.com>
Acked-by: default avatarMartin Habets <habetsm.xilinx@gmail.com>
Signed-off-by: default avatarPaolo Abeni <pabeni@redhat.com>
parent fa34a514

Documentation/networking/devlink/index.rst

+1 −0
Original line number Diff line number Diff line
@@ -66,3 +66,4 @@ parameters, info versions, and other features it supports. 
   prestera

   iosm

   octeontx2

   sfc

Documentation/networking/devlink/sfc.rst

0 → 100644
+57 −0
Original line number Diff line number Diff line 
.. SPDX-License-Identifier: GPL-2.0



===================

sfc devlink support

===================



This document describes the devlink features implemented by the ``sfc``

device driver for the ef100 device.



Info versions

=============



The ``sfc`` driver reports the following versions



.. list-table:: devlink info versions implemented

   :widths: 5 5 90



   * - Name

     - Type

     - Description

   * - ``fw.mgmt.suc``

     - running

     - For boards where the management function is split between multiple

       control units, this is the SUC control unit's firmware version.

   * - ``fw.mgmt.cmc``

     - running

     - For boards where the management function is split between multiple

       control units, this is the CMC control unit's firmware version.

   * - ``fpga.rev``

     - running

     - FPGA design revision.

   * - ``fpga.app``

     - running

     - Datapath programmable logic version.

   * - ``fw.app``

     - running

     - Datapath software/microcode/firmware version.

   * - ``coproc.boot``

     - running

     - SmartNIC application co-processor (APU) first stage boot loader version.

   * - ``coproc.uboot``

     - running

     - SmartNIC application co-processor (APU) co-operating system loader version.

   * - ``coproc.main``

     - running

     - SmartNIC application co-processor (APU) main operating system version.

   * - ``coproc.recovery``

     - running

     - SmartNIC application co-processor (APU) recovery operating system version.

   * - ``fw.exprom``

     - running

     - Expansion ROM version. For boards where the expansion ROM is split between

       multiple images (e.g. PXE and UEFI), this is the specifically the PXE boot

       ROM version.

   * - ``fw.uefi``

     - running

     - UEFI driver version (No UNDI support).

MAINTAINERS

+1 −0
Original line number Diff line number Diff line
@@ -18937,6 +18937,7 @@ M: Edward Cree <ecree.xilinx@gmail.com> 
M:	Martin Habets <habetsm.xilinx@gmail.com>

L:	netdev@vger.kernel.org

S:	Supported

F:	Documentation/networking/devlink/sfc.rst

F:	drivers/net/ethernet/sfc/









SFF/SFP/SFP+ MODULE SUPPORT

























drivers/net/ethernet/sfc/efx_devlink.c



+457
−0






























Original line number
Diff line number
Diff line







@@ -10,12 +10,469 @@

















#include "net_driver.h"









#include "efx_devlink.h"









#include <linux/rtc.h>









#include "mcdi.h"









#include "mcdi_functions.h"









#include "mcdi_pcol.h"



















struct efx_devlink {









	struct efx_nic *efx;









};



















static int efx_devlink_info_nvram_partition(struct efx_nic *efx,









					    struct devlink_info_req *req,









					    unsigned int partition_type,









					    const char *version_name)









{









	char buf[EFX_MAX_VERSION_INFO_LEN];









	u16 version[4];









	int rc;



















	rc = efx_mcdi_nvram_metadata(efx, partition_type, NULL, version, NULL,









				     0);









	if (rc) {









		netif_err(efx, drv, efx->net_dev, "mcdi nvram %s: failed\n",









			  version_name);









		return rc;









	}



















	snprintf(buf, EFX_MAX_VERSION_INFO_LEN, "%u.%u.%u.%u", version[0],









		 version[1], version[2], version[3]);









	devlink_info_version_stored_put(req, version_name, buf);



















	return 0;









}



















static int efx_devlink_info_stored_versions(struct efx_nic *efx,









					    struct devlink_info_req *req)









{









	int rc;



















	rc = efx_devlink_info_nvram_partition(efx, req,









					      NVRAM_PARTITION_TYPE_BUNDLE,









					      DEVLINK_INFO_VERSION_GENERIC_FW_BUNDLE_ID);









	if (rc)









		return rc;



















	rc = efx_devlink_info_nvram_partition(efx, req,









					      NVRAM_PARTITION_TYPE_MC_FIRMWARE,









					      DEVLINK_INFO_VERSION_GENERIC_FW_MGMT);









	if (rc)









		return rc;



















	rc = efx_devlink_info_nvram_partition(efx, req,









					      NVRAM_PARTITION_TYPE_SUC_FIRMWARE,









					      EFX_DEVLINK_INFO_VERSION_FW_MGMT_SUC);









	if (rc)









		return rc;



















	rc = efx_devlink_info_nvram_partition(efx, req,









					      NVRAM_PARTITION_TYPE_EXPANSION_ROM,









					      EFX_DEVLINK_INFO_VERSION_FW_EXPROM);









	if (rc)









		return rc;



















	rc = efx_devlink_info_nvram_partition(efx, req,









					      NVRAM_PARTITION_TYPE_EXPANSION_UEFI,









					      EFX_DEVLINK_INFO_VERSION_FW_UEFI);









	return rc;









}



















#define EFX_VER_FLAG(_f)	\









	(MC_CMD_GET_VERSION_V5_OUT_ ## _f ## _PRESENT_LBN)



















static void efx_devlink_info_running_v2(struct efx_nic *efx,









					struct devlink_info_req *req,









					unsigned int flags, efx_dword_t *outbuf)









{









	char buf[EFX_MAX_VERSION_INFO_LEN];









	union {









		const __le32 *dwords;









		const __le16 *words;









		const char *str;









	} ver;









	struct rtc_time build_date;









	unsigned int build_id;









	size_t offset;









	__maybe_unused u64 tstamp;



















	if (flags & BIT(EFX_VER_FLAG(BOARD_EXT_INFO))) {









		snprintf(buf, EFX_MAX_VERSION_INFO_LEN, "%s",









			 MCDI_PTR(outbuf, GET_VERSION_V2_OUT_BOARD_NAME));









		devlink_info_version_fixed_put(req,









					       DEVLINK_INFO_VERSION_GENERIC_BOARD_ID,









					       buf);



















		/* Favour full board version if present (in V5 or later) */









		if (~flags & BIT(EFX_VER_FLAG(BOARD_VERSION))) {









			snprintf(buf, EFX_MAX_VERSION_INFO_LEN, "%u",









				 MCDI_DWORD(outbuf,









					    GET_VERSION_V2_OUT_BOARD_REVISION));









			devlink_info_version_fixed_put(req,









						       DEVLINK_INFO_VERSION_GENERIC_BOARD_REV,









						       buf);









		}



















		ver.str = MCDI_PTR(outbuf, GET_VERSION_V2_OUT_BOARD_SERIAL);









		if (ver.str[0])









			devlink_info_board_serial_number_put(req, ver.str);









	}



















	if (flags & BIT(EFX_VER_FLAG(FPGA_EXT_INFO))) {









		ver.dwords = (__le32 *)MCDI_PTR(outbuf,









						GET_VERSION_V2_OUT_FPGA_VERSION);









		offset = snprintf(buf, EFX_MAX_VERSION_INFO_LEN, "%u_%c%u",









				  le32_to_cpu(ver.dwords[0]),









				  'A' + le32_to_cpu(ver.dwords[1]),









				  le32_to_cpu(ver.dwords[2]));



















		ver.str = MCDI_PTR(outbuf, GET_VERSION_V2_OUT_FPGA_EXTRA);









		if (ver.str[0])









			snprintf(&buf[offset], EFX_MAX_VERSION_INFO_LEN - offset,









				 " (%s)", ver.str);



















		devlink_info_version_running_put(req,









						 EFX_DEVLINK_INFO_VERSION_FPGA_REV,









						 buf);









	}



















	if (flags & BIT(EFX_VER_FLAG(CMC_EXT_INFO))) {









		ver.dwords = (__le32 *)MCDI_PTR(outbuf,









						GET_VERSION_V2_OUT_CMCFW_VERSION);









		offset = snprintf(buf, EFX_MAX_VERSION_INFO_LEN, "%u.%u.%u.%u",









				  le32_to_cpu(ver.dwords[0]),









				  le32_to_cpu(ver.dwords[1]),









				  le32_to_cpu(ver.dwords[2]),









				  le32_to_cpu(ver.dwords[3]));



















#ifdef CONFIG_RTC_LIB









		tstamp = MCDI_QWORD(outbuf,









				    GET_VERSION_V2_OUT_CMCFW_BUILD_DATE);









		if (tstamp) {









			rtc_time64_to_tm(tstamp, &build_date);









			snprintf(&buf[offset], EFX_MAX_VERSION_INFO_LEN - offset,









				 " (%ptRd)", &build_date);









		}









#endif



















		devlink_info_version_running_put(req,









						 EFX_DEVLINK_INFO_VERSION_FW_MGMT_CMC,









						 buf);









	}



















	ver.words = (__le16 *)MCDI_PTR(outbuf, GET_VERSION_V2_OUT_VERSION);









	offset = snprintf(buf, EFX_MAX_VERSION_INFO_LEN, "%u.%u.%u.%u",









			  le16_to_cpu(ver.words[0]), le16_to_cpu(ver.words[1]),









			  le16_to_cpu(ver.words[2]), le16_to_cpu(ver.words[3]));









	if (flags & BIT(EFX_VER_FLAG(MCFW_EXT_INFO))) {









		build_id = MCDI_DWORD(outbuf, GET_VERSION_V2_OUT_MCFW_BUILD_ID);









		snprintf(&buf[offset], EFX_MAX_VERSION_INFO_LEN - offset,









			 " (%x) %s", build_id,









			 MCDI_PTR(outbuf, GET_VERSION_V2_OUT_MCFW_BUILD_NAME));









	}









	devlink_info_version_running_put(req,









					 DEVLINK_INFO_VERSION_GENERIC_FW_MGMT,









					 buf);



















	if (flags & BIT(EFX_VER_FLAG(SUCFW_EXT_INFO))) {









		ver.dwords = (__le32 *)MCDI_PTR(outbuf,









						GET_VERSION_V2_OUT_SUCFW_VERSION);









#ifdef CONFIG_RTC_LIB









		tstamp = MCDI_QWORD(outbuf,









				    GET_VERSION_V2_OUT_SUCFW_BUILD_DATE);









		rtc_time64_to_tm(tstamp, &build_date);









#else









		memset(&build_date, 0, sizeof(build_date)









#endif









		build_id = MCDI_DWORD(outbuf, GET_VERSION_V2_OUT_SUCFW_CHIP_ID);



















		snprintf(buf, EFX_MAX_VERSION_INFO_LEN,









			 "%u.%u.%u.%u type %x (%ptRd)",









			 le32_to_cpu(ver.dwords[0]), le32_to_cpu(ver.dwords[1]),









			 le32_to_cpu(ver.dwords[2]), le32_to_cpu(ver.dwords[3]),









			 build_id, &build_date);



















		devlink_info_version_running_put(req,









						 EFX_DEVLINK_INFO_VERSION_FW_MGMT_SUC,









						 buf);









	}









}



















static void efx_devlink_info_running_v3(struct efx_nic *efx,









					struct devlink_info_req *req,









					unsigned int flags, efx_dword_t *outbuf)









{









	char buf[EFX_MAX_VERSION_INFO_LEN];









	union {









		const __le32 *dwords;









		const __le16 *words;









		const char *str;









	} ver;



















	if (flags & BIT(EFX_VER_FLAG(DATAPATH_HW_VERSION))) {









		ver.dwords = (__le32 *)MCDI_PTR(outbuf,









						GET_VERSION_V3_OUT_DATAPATH_HW_VERSION);



















		snprintf(buf, EFX_MAX_VERSION_INFO_LEN, "%u.%u.%u",









			 le32_to_cpu(ver.dwords[0]), le32_to_cpu(ver.dwords[1]),









			 le32_to_cpu(ver.dwords[2]));



















		devlink_info_version_running_put(req,









						 EFX_DEVLINK_INFO_VERSION_DATAPATH_HW,









						 buf);









	}



















	if (flags & BIT(EFX_VER_FLAG(DATAPATH_FW_VERSION))) {









		ver.dwords = (__le32 *)MCDI_PTR(outbuf,









						GET_VERSION_V3_OUT_DATAPATH_FW_VERSION);



















		snprintf(buf, EFX_MAX_VERSION_INFO_LEN, "%u.%u.%u",









			 le32_to_cpu(ver.dwords[0]), le32_to_cpu(ver.dwords[1]),









			 le32_to_cpu(ver.dwords[2]));



















		devlink_info_version_running_put(req,









						 EFX_DEVLINK_INFO_VERSION_DATAPATH_FW,









						 buf);









	}









}



















static void efx_devlink_info_running_v4(struct efx_nic *efx,









					struct devlink_info_req *req,









					unsigned int flags, efx_dword_t *outbuf)









{









	char buf[EFX_MAX_VERSION_INFO_LEN];









	union {









		const __le32 *dwords;









		const __le16 *words;









		const char *str;









	} ver;



















	if (flags & BIT(EFX_VER_FLAG(SOC_BOOT_VERSION))) {









		ver.dwords = (__le32 *)MCDI_PTR(outbuf,









						GET_VERSION_V4_OUT_SOC_BOOT_VERSION);



















		snprintf(buf, EFX_MAX_VERSION_INFO_LEN, "%u.%u.%u.%u",









			 le32_to_cpu(ver.dwords[0]), le32_to_cpu(ver.dwords[1]),









			 le32_to_cpu(ver.dwords[2]),









			 le32_to_cpu(ver.dwords[3]));



















		devlink_info_version_running_put(req,









						 EFX_DEVLINK_INFO_VERSION_SOC_BOOT,









						 buf);









	}



















	if (flags & BIT(EFX_VER_FLAG(SOC_UBOOT_VERSION))) {









		ver.dwords = (__le32 *)MCDI_PTR(outbuf,









						GET_VERSION_V4_OUT_SOC_UBOOT_VERSION);



















		snprintf(buf, EFX_MAX_VERSION_INFO_LEN, "%u.%u.%u.%u",









			 le32_to_cpu(ver.dwords[0]), le32_to_cpu(ver.dwords[1]),









			 le32_to_cpu(ver.dwords[2]),









			 le32_to_cpu(ver.dwords[3]));



















		devlink_info_version_running_put(req,









						 EFX_DEVLINK_INFO_VERSION_SOC_UBOOT,









						 buf);









	}



















	if (flags & BIT(EFX_VER_FLAG(SOC_MAIN_ROOTFS_VERSION))) {









		ver.dwords = (__le32 *)MCDI_PTR(outbuf,









					GET_VERSION_V4_OUT_SOC_MAIN_ROOTFS_VERSION);



















		snprintf(buf, EFX_MAX_VERSION_INFO_LEN, "%u.%u.%u.%u",









			 le32_to_cpu(ver.dwords[0]), le32_to_cpu(ver.dwords[1]),









			 le32_to_cpu(ver.dwords[2]),









			 le32_to_cpu(ver.dwords[3]));



















		devlink_info_version_running_put(req,









						 EFX_DEVLINK_INFO_VERSION_SOC_MAIN,









						 buf);









	}



















	if (flags & BIT(EFX_VER_FLAG(SOC_RECOVERY_BUILDROOT_VERSION))) {









		ver.dwords = (__le32 *)MCDI_PTR(outbuf,









						GET_VERSION_V4_OUT_SOC_RECOVERY_BUILDROOT_VERSION);



















		snprintf(buf, EFX_MAX_VERSION_INFO_LEN, "%u.%u.%u.%u",









			 le32_to_cpu(ver.dwords[0]), le32_to_cpu(ver.dwords[1]),









			 le32_to_cpu(ver.dwords[2]),









			 le32_to_cpu(ver.dwords[3]));



















		devlink_info_version_running_put(req,









						 EFX_DEVLINK_INFO_VERSION_SOC_RECOVERY,









						 buf);









	}



















	if (flags & BIT(EFX_VER_FLAG(SUCFW_VERSION)) &&









	    ~flags & BIT(EFX_VER_FLAG(SUCFW_EXT_INFO))) {









		ver.dwords = (__le32 *)MCDI_PTR(outbuf,









						GET_VERSION_V4_OUT_SUCFW_VERSION);



















		snprintf(buf, EFX_MAX_VERSION_INFO_LEN, "%u.%u.%u.%u",









			 le32_to_cpu(ver.dwords[0]), le32_to_cpu(ver.dwords[1]),









			 le32_to_cpu(ver.dwords[2]),









			 le32_to_cpu(ver.dwords[3]));



















		devlink_info_version_running_put(req,









						 EFX_DEVLINK_INFO_VERSION_FW_MGMT_SUC,









						 buf);









	}









}



















static void efx_devlink_info_running_v5(struct efx_nic *efx,









					struct devlink_info_req *req,









					unsigned int flags, efx_dword_t *outbuf)









{









	char buf[EFX_MAX_VERSION_INFO_LEN];









	union {









		const __le32 *dwords;









		const __le16 *words;









		const char *str;









	} ver;



















	if (flags & BIT(EFX_VER_FLAG(BOARD_VERSION))) {









		ver.dwords = (__le32 *)MCDI_PTR(outbuf,









						GET_VERSION_V5_OUT_BOARD_VERSION);



















		snprintf(buf, EFX_MAX_VERSION_INFO_LEN, "%u.%u.%u.%u",









			 le32_to_cpu(ver.dwords[0]), le32_to_cpu(ver.dwords[1]),









			 le32_to_cpu(ver.dwords[2]),









			 le32_to_cpu(ver.dwords[3]));



















		devlink_info_version_running_put(req,









						 DEVLINK_INFO_VERSION_GENERIC_BOARD_REV,









						 buf);









	}



















	if (flags & BIT(EFX_VER_FLAG(BUNDLE_VERSION))) {









		ver.dwords = (__le32 *)MCDI_PTR(outbuf,









						GET_VERSION_V5_OUT_BUNDLE_VERSION);



















		snprintf(buf, EFX_MAX_VERSION_INFO_LEN, "%u.%u.%u.%u",









			 le32_to_cpu(ver.dwords[0]), le32_to_cpu(ver.dwords[1]),









			 le32_to_cpu(ver.dwords[2]),









			 le32_to_cpu(ver.dwords[3]));



















		devlink_info_version_running_put(req,









						 DEVLINK_INFO_VERSION_GENERIC_FW_BUNDLE_ID,









						 buf);









	}









}



















static int efx_devlink_info_running_versions(struct efx_nic *efx,









					     struct devlink_info_req *req)









{









	MCDI_DECLARE_BUF(outbuf, MC_CMD_GET_VERSION_V5_OUT_LEN);









	MCDI_DECLARE_BUF(inbuf, MC_CMD_GET_VERSION_EXT_IN_LEN);









	char buf[EFX_MAX_VERSION_INFO_LEN];









	union {









		const __le32 *dwords;









		const __le16 *words;









		const char *str;









	} ver;









	size_t outlength;









	unsigned int flags;









	int rc;



















	rc = efx_mcdi_rpc(efx, MC_CMD_GET_VERSION, inbuf, sizeof(inbuf),









			  outbuf, sizeof(outbuf), &outlength);









	if (rc || outlength < MC_CMD_GET_VERSION_OUT_LEN) {









		netif_err(efx, drv, efx->net_dev,









			  "mcdi MC_CMD_GET_VERSION failed\n");









		return rc;









	}



















	/* Handle previous output */









	if (outlength < MC_CMD_GET_VERSION_V2_OUT_LEN) {









		ver.words = (__le16 *)MCDI_PTR(outbuf,









					       GET_VERSION_EXT_OUT_VERSION);









		snprintf(buf, EFX_MAX_VERSION_INFO_LEN, "%u.%u.%u.%u",









			 le16_to_cpu(ver.words[0]),









			 le16_to_cpu(ver.words[1]),









			 le16_to_cpu(ver.words[2]),









			 le16_to_cpu(ver.words[3]));



















		devlink_info_version_running_put(req,









						 DEVLINK_INFO_VERSION_GENERIC_FW_MGMT,









						 buf);









		return 0;









	}



















	/* Handle V2 additions */









	flags = MCDI_DWORD(outbuf, GET_VERSION_V2_OUT_FLAGS);









	efx_devlink_info_running_v2(efx, req, flags, outbuf);



















	if (outlength < MC_CMD_GET_VERSION_V3_OUT_LEN)









		return 0;



















	/* Handle V3 additions */









	efx_devlink_info_running_v3(efx, req, flags, outbuf);



















	if (outlength < MC_CMD_GET_VERSION_V4_OUT_LEN)









		return 0;



















	/* Handle V4 additions */









	efx_devlink_info_running_v4(efx, req, flags, outbuf);



















	if (outlength < MC_CMD_GET_VERSION_V5_OUT_LEN)









		return 0;



















	/* Handle V5 additions */









	efx_devlink_info_running_v5(efx, req, flags, outbuf);



















	return 0;









}



















#define EFX_MAX_SERIALNUM_LEN	(ETH_ALEN * 2 + 1)



















static int efx_devlink_info_board_cfg(struct efx_nic *efx,









				      struct devlink_info_req *req)









{









	char sn[EFX_MAX_SERIALNUM_LEN];









	u8 mac_address[ETH_ALEN];









	int rc;



















	rc = efx_mcdi_get_board_cfg(efx, (u8 *)mac_address, NULL, NULL);









	if (!rc) {









		snprintf(sn, EFX_MAX_SERIALNUM_LEN, "%pm", mac_address);









		devlink_info_serial_number_put(req, sn);









	}









	return rc;









}



















static int efx_devlink_info_get(struct devlink *devlink,









				struct devlink_info_req *req,









				struct netlink_ext_ack *extack)









{









	struct efx_devlink *devlink_private = devlink_priv(devlink);









	struct efx_nic *efx = devlink_private->efx;









	int rc;



















	/* Several different MCDI commands are used. We report first error









	 * through extack returning at that point. Specific error









	 * information via system messages.









	 */









	rc = efx_devlink_info_board_cfg(efx, req);









	if (rc) {









		NL_SET_ERR_MSG_MOD(extack, "Getting board info failed");









		return rc;









	}









	rc = efx_devlink_info_stored_versions(efx, req);









	if (rc) {









		NL_SET_ERR_MSG_MOD(extack, "Getting stored versions failed");









		return rc;









	}









	rc = efx_devlink_info_running_versions(efx, req);









	if (rc) {









		NL_SET_ERR_MSG_MOD(extack, "Getting running versions failed");









		return rc;









	}



















	return 0;









}



















static const struct devlink_ops sfc_devlink_ops = {









	.info_get			= efx_devlink_info_get,









};



















void efx_fini_devlink_lock(struct efx_nic *efx)
































drivers/net/ethernet/sfc/efx_devlink.h



+17
−0






























Original line number
Diff line number
Diff line







@@ -14,6 +14,23 @@







#include "net_driver.h"









#include <net/devlink.h>



















/* Custom devlink-info version object names for details that do not map to the









 * generic standardized names.









 */









#define EFX_DEVLINK_INFO_VERSION_FW_MGMT_SUC	"fw.mgmt.suc"









#define EFX_DEVLINK_INFO_VERSION_FW_MGMT_CMC	"fw.mgmt.cmc"









#define EFX_DEVLINK_INFO_VERSION_FPGA_REV	"fpga.rev"









#define EFX_DEVLINK_INFO_VERSION_DATAPATH_HW	"fpga.app"









#define EFX_DEVLINK_INFO_VERSION_DATAPATH_FW	DEVLINK_INFO_VERSION_GENERIC_FW_APP









#define EFX_DEVLINK_INFO_VERSION_SOC_BOOT	"coproc.boot"









#define EFX_DEVLINK_INFO_VERSION_SOC_UBOOT	"coproc.uboot"









#define EFX_DEVLINK_INFO_VERSION_SOC_MAIN	"coproc.main"









#define EFX_DEVLINK_INFO_VERSION_SOC_RECOVERY	"coproc.recovery"









#define EFX_DEVLINK_INFO_VERSION_FW_EXPROM	"fw.exprom"









#define EFX_DEVLINK_INFO_VERSION_FW_UEFI	"fw.uefi"



















#define EFX_MAX_VERSION_INFO_LEN	64



















int efx_probe_devlink_and_lock(struct efx_nic *efx);









void efx_probe_devlink_unlock(struct efx_nic *efx);









void efx_fini_devlink_lock(struct efx_nic *efx);