| // SPDX-License-Identifier: GPL-2.0 |
| /* Copyright (c) 2020, Intel Corporation. */ |
| |
| #include <linux/vmalloc.h> |
| |
| #include "ice.h" |
| #include "ice_lib.h" |
| #include "ice_devlink.h" |
| #include "ice_eswitch.h" |
| #include "ice_fw_update.h" |
| |
| static int ice_active_port_option = -1; |
| |
| /* context for devlink info version reporting */ |
| struct ice_info_ctx { |
| char buf[128]; |
| struct ice_orom_info pending_orom; |
| struct ice_nvm_info pending_nvm; |
| struct ice_netlist_info pending_netlist; |
| struct ice_hw_dev_caps dev_caps; |
| }; |
| |
| /* The following functions are used to format specific strings for various |
| * devlink info versions. The ctx parameter is used to provide the storage |
| * buffer, as well as any ancillary information calculated when the info |
| * request was made. |
| * |
| * If a version does not exist, for example when attempting to get the |
| * inactive version of flash when there is no pending update, the function |
| * should leave the buffer in the ctx structure empty. |
| */ |
| |
| static void ice_info_get_dsn(struct ice_pf *pf, struct ice_info_ctx *ctx) |
| { |
| u8 dsn[8]; |
| |
| /* Copy the DSN into an array in Big Endian format */ |
| put_unaligned_be64(pci_get_dsn(pf->pdev), dsn); |
| |
| snprintf(ctx->buf, sizeof(ctx->buf), "%8phD", dsn); |
| } |
| |
| static void ice_info_pba(struct ice_pf *pf, struct ice_info_ctx *ctx) |
| { |
| struct ice_hw *hw = &pf->hw; |
| int status; |
| |
| status = ice_read_pba_string(hw, (u8 *)ctx->buf, sizeof(ctx->buf)); |
| if (status) |
| /* We failed to locate the PBA, so just skip this entry */ |
| dev_dbg(ice_pf_to_dev(pf), "Failed to read Product Board Assembly string, status %d\n", |
| status); |
| } |
| |
| static void ice_info_fw_mgmt(struct ice_pf *pf, struct ice_info_ctx *ctx) |
| { |
| struct ice_hw *hw = &pf->hw; |
| |
| snprintf(ctx->buf, sizeof(ctx->buf), "%u.%u.%u", |
| hw->fw_maj_ver, hw->fw_min_ver, hw->fw_patch); |
| } |
| |
| static void ice_info_fw_api(struct ice_pf *pf, struct ice_info_ctx *ctx) |
| { |
| struct ice_hw *hw = &pf->hw; |
| |
| snprintf(ctx->buf, sizeof(ctx->buf), "%u.%u.%u", hw->api_maj_ver, |
| hw->api_min_ver, hw->api_patch); |
| } |
| |
| static void ice_info_fw_build(struct ice_pf *pf, struct ice_info_ctx *ctx) |
| { |
| struct ice_hw *hw = &pf->hw; |
| |
| snprintf(ctx->buf, sizeof(ctx->buf), "0x%08x", hw->fw_build); |
| } |
| |
| static void ice_info_orom_ver(struct ice_pf *pf, struct ice_info_ctx *ctx) |
| { |
| struct ice_orom_info *orom = &pf->hw.flash.orom; |
| |
| snprintf(ctx->buf, sizeof(ctx->buf), "%u.%u.%u", |
| orom->major, orom->build, orom->patch); |
| } |
| |
| static void |
| ice_info_pending_orom_ver(struct ice_pf __always_unused *pf, |
| struct ice_info_ctx *ctx) |
| { |
| struct ice_orom_info *orom = &ctx->pending_orom; |
| |
| if (ctx->dev_caps.common_cap.nvm_update_pending_orom) |
| snprintf(ctx->buf, sizeof(ctx->buf), "%u.%u.%u", |
| orom->major, orom->build, orom->patch); |
| } |
| |
| static void ice_info_nvm_ver(struct ice_pf *pf, struct ice_info_ctx *ctx) |
| { |
| struct ice_nvm_info *nvm = &pf->hw.flash.nvm; |
| |
| snprintf(ctx->buf, sizeof(ctx->buf), "%x.%02x", nvm->major, nvm->minor); |
| } |
| |
| static void |
| ice_info_pending_nvm_ver(struct ice_pf __always_unused *pf, |
| struct ice_info_ctx *ctx) |
| { |
| struct ice_nvm_info *nvm = &ctx->pending_nvm; |
| |
| if (ctx->dev_caps.common_cap.nvm_update_pending_nvm) |
| snprintf(ctx->buf, sizeof(ctx->buf), "%x.%02x", |
| nvm->major, nvm->minor); |
| } |
| |
| static void ice_info_eetrack(struct ice_pf *pf, struct ice_info_ctx *ctx) |
| { |
| struct ice_nvm_info *nvm = &pf->hw.flash.nvm; |
| |
| snprintf(ctx->buf, sizeof(ctx->buf), "0x%08x", nvm->eetrack); |
| } |
| |
| static void |
| ice_info_pending_eetrack(struct ice_pf *pf, struct ice_info_ctx *ctx) |
| { |
| struct ice_nvm_info *nvm = &ctx->pending_nvm; |
| |
| if (ctx->dev_caps.common_cap.nvm_update_pending_nvm) |
| snprintf(ctx->buf, sizeof(ctx->buf), "0x%08x", nvm->eetrack); |
| } |
| |
| static void ice_info_ddp_pkg_name(struct ice_pf *pf, struct ice_info_ctx *ctx) |
| { |
| struct ice_hw *hw = &pf->hw; |
| |
| snprintf(ctx->buf, sizeof(ctx->buf), "%s", hw->active_pkg_name); |
| } |
| |
| static void |
| ice_info_ddp_pkg_version(struct ice_pf *pf, struct ice_info_ctx *ctx) |
| { |
| struct ice_pkg_ver *pkg = &pf->hw.active_pkg_ver; |
| |
| snprintf(ctx->buf, sizeof(ctx->buf), "%u.%u.%u.%u", |
| pkg->major, pkg->minor, pkg->update, pkg->draft); |
| } |
| |
| static void |
| ice_info_ddp_pkg_bundle_id(struct ice_pf *pf, struct ice_info_ctx *ctx) |
| { |
| snprintf(ctx->buf, sizeof(ctx->buf), "0x%08x", pf->hw.active_track_id); |
| } |
| |
| static void ice_info_netlist_ver(struct ice_pf *pf, struct ice_info_ctx *ctx) |
| { |
| struct ice_netlist_info *netlist = &pf->hw.flash.netlist; |
| |
| /* The netlist version fields are BCD formatted */ |
| snprintf(ctx->buf, sizeof(ctx->buf), "%x.%x.%x-%x.%x.%x", |
| netlist->major, netlist->minor, |
| netlist->type >> 16, netlist->type & 0xFFFF, |
| netlist->rev, netlist->cust_ver); |
| } |
| |
| static void ice_info_netlist_build(struct ice_pf *pf, struct ice_info_ctx *ctx) |
| { |
| struct ice_netlist_info *netlist = &pf->hw.flash.netlist; |
| |
| snprintf(ctx->buf, sizeof(ctx->buf), "0x%08x", netlist->hash); |
| } |
| |
| static void |
| ice_info_pending_netlist_ver(struct ice_pf __always_unused *pf, |
| struct ice_info_ctx *ctx) |
| { |
| struct ice_netlist_info *netlist = &ctx->pending_netlist; |
| |
| /* The netlist version fields are BCD formatted */ |
| if (ctx->dev_caps.common_cap.nvm_update_pending_netlist) |
| snprintf(ctx->buf, sizeof(ctx->buf), "%x.%x.%x-%x.%x.%x", |
| netlist->major, netlist->minor, |
| netlist->type >> 16, netlist->type & 0xFFFF, |
| netlist->rev, netlist->cust_ver); |
| } |
| |
| static void |
| ice_info_pending_netlist_build(struct ice_pf __always_unused *pf, |
| struct ice_info_ctx *ctx) |
| { |
| struct ice_netlist_info *netlist = &ctx->pending_netlist; |
| |
| if (ctx->dev_caps.common_cap.nvm_update_pending_netlist) |
| snprintf(ctx->buf, sizeof(ctx->buf), "0x%08x", netlist->hash); |
| } |
| |
| #define fixed(key, getter) { ICE_VERSION_FIXED, key, getter, NULL } |
| #define running(key, getter) { ICE_VERSION_RUNNING, key, getter, NULL } |
| #define stored(key, getter, fallback) { ICE_VERSION_STORED, key, getter, fallback } |
| |
| /* The combined() macro inserts both the running entry as well as a stored |
| * entry. The running entry will always report the version from the active |
| * handler. The stored entry will first try the pending handler, and fallback |
| * to the active handler if the pending function does not report a version. |
| * The pending handler should check the status of a pending update for the |
| * relevant flash component. It should only fill in the buffer in the case |
| * where a valid pending version is available. This ensures that the related |
| * stored and running versions remain in sync, and that stored versions are |
| * correctly reported as expected. |
| */ |
| #define combined(key, active, pending) \ |
| running(key, active), \ |
| stored(key, pending, active) |
| |
| enum ice_version_type { |
| ICE_VERSION_FIXED, |
| ICE_VERSION_RUNNING, |
| ICE_VERSION_STORED, |
| }; |
| |
| static const struct ice_devlink_version { |
| enum ice_version_type type; |
| const char *key; |
| void (*getter)(struct ice_pf *pf, struct ice_info_ctx *ctx); |
| void (*fallback)(struct ice_pf *pf, struct ice_info_ctx *ctx); |
| } ice_devlink_versions[] = { |
| fixed(DEVLINK_INFO_VERSION_GENERIC_BOARD_ID, ice_info_pba), |
| running(DEVLINK_INFO_VERSION_GENERIC_FW_MGMT, ice_info_fw_mgmt), |
| running("fw.mgmt.api", ice_info_fw_api), |
| running("fw.mgmt.build", ice_info_fw_build), |
| combined(DEVLINK_INFO_VERSION_GENERIC_FW_UNDI, ice_info_orom_ver, ice_info_pending_orom_ver), |
| combined("fw.psid.api", ice_info_nvm_ver, ice_info_pending_nvm_ver), |
| combined(DEVLINK_INFO_VERSION_GENERIC_FW_BUNDLE_ID, ice_info_eetrack, ice_info_pending_eetrack), |
| running("fw.app.name", ice_info_ddp_pkg_name), |
| running(DEVLINK_INFO_VERSION_GENERIC_FW_APP, ice_info_ddp_pkg_version), |
| running("fw.app.bundle_id", ice_info_ddp_pkg_bundle_id), |
| combined("fw.netlist", ice_info_netlist_ver, ice_info_pending_netlist_ver), |
| combined("fw.netlist.build", ice_info_netlist_build, ice_info_pending_netlist_build), |
| }; |
| |
| /** |
| * ice_devlink_info_get - .info_get devlink handler |
| * @devlink: devlink instance structure |
| * @req: the devlink info request |
| * @extack: extended netdev ack structure |
| * |
| * Callback for the devlink .info_get operation. Reports information about the |
| * device. |
| * |
| * Return: zero on success or an error code on failure. |
| */ |
| static int ice_devlink_info_get(struct devlink *devlink, |
| struct devlink_info_req *req, |
| struct netlink_ext_ack *extack) |
| { |
| struct ice_pf *pf = devlink_priv(devlink); |
| struct device *dev = ice_pf_to_dev(pf); |
| struct ice_hw *hw = &pf->hw; |
| struct ice_info_ctx *ctx; |
| size_t i; |
| int err; |
| |
| err = ice_wait_for_reset(pf, 10 * HZ); |
| if (err) { |
| NL_SET_ERR_MSG_MOD(extack, "Device is busy resetting"); |
| return err; |
| } |
| |
| ctx = kzalloc(sizeof(*ctx), GFP_KERNEL); |
| if (!ctx) |
| return -ENOMEM; |
| |
| /* discover capabilities first */ |
| err = ice_discover_dev_caps(hw, &ctx->dev_caps); |
| if (err) { |
| dev_dbg(dev, "Failed to discover device capabilities, status %d aq_err %s\n", |
| err, ice_aq_str(hw->adminq.sq_last_status)); |
| NL_SET_ERR_MSG_MOD(extack, "Unable to discover device capabilities"); |
| goto out_free_ctx; |
| } |
| |
| if (ctx->dev_caps.common_cap.nvm_update_pending_orom) { |
| err = ice_get_inactive_orom_ver(hw, &ctx->pending_orom); |
| if (err) { |
| dev_dbg(dev, "Unable to read inactive Option ROM version data, status %d aq_err %s\n", |
| err, ice_aq_str(hw->adminq.sq_last_status)); |
| |
| /* disable display of pending Option ROM */ |
| ctx->dev_caps.common_cap.nvm_update_pending_orom = false; |
| } |
| } |
| |
| if (ctx->dev_caps.common_cap.nvm_update_pending_nvm) { |
| err = ice_get_inactive_nvm_ver(hw, &ctx->pending_nvm); |
| if (err) { |
| dev_dbg(dev, "Unable to read inactive NVM version data, status %d aq_err %s\n", |
| err, ice_aq_str(hw->adminq.sq_last_status)); |
| |
| /* disable display of pending Option ROM */ |
| ctx->dev_caps.common_cap.nvm_update_pending_nvm = false; |
| } |
| } |
| |
| if (ctx->dev_caps.common_cap.nvm_update_pending_netlist) { |
| err = ice_get_inactive_netlist_ver(hw, &ctx->pending_netlist); |
| if (err) { |
| dev_dbg(dev, "Unable to read inactive Netlist version data, status %d aq_err %s\n", |
| err, ice_aq_str(hw->adminq.sq_last_status)); |
| |
| /* disable display of pending Option ROM */ |
| ctx->dev_caps.common_cap.nvm_update_pending_netlist = false; |
| } |
| } |
| |
| err = devlink_info_driver_name_put(req, KBUILD_MODNAME); |
| if (err) { |
| NL_SET_ERR_MSG_MOD(extack, "Unable to set driver name"); |
| goto out_free_ctx; |
| } |
| |
| ice_info_get_dsn(pf, ctx); |
| |
| err = devlink_info_serial_number_put(req, ctx->buf); |
| if (err) { |
| NL_SET_ERR_MSG_MOD(extack, "Unable to set serial number"); |
| goto out_free_ctx; |
| } |
| |
| for (i = 0; i < ARRAY_SIZE(ice_devlink_versions); i++) { |
| enum ice_version_type type = ice_devlink_versions[i].type; |
| const char *key = ice_devlink_versions[i].key; |
| |
| memset(ctx->buf, 0, sizeof(ctx->buf)); |
| |
| ice_devlink_versions[i].getter(pf, ctx); |
| |
| /* If the default getter doesn't report a version, use the |
| * fallback function. This is primarily useful in the case of |
| * "stored" versions that want to report the same value as the |
| * running version in the normal case of no pending update. |
| */ |
| if (ctx->buf[0] == '\0' && ice_devlink_versions[i].fallback) |
| ice_devlink_versions[i].fallback(pf, ctx); |
| |
| /* Do not report missing versions */ |
| if (ctx->buf[0] == '\0') |
| continue; |
| |
| switch (type) { |
| case ICE_VERSION_FIXED: |
| err = devlink_info_version_fixed_put(req, key, ctx->buf); |
| if (err) { |
| NL_SET_ERR_MSG_MOD(extack, "Unable to set fixed version"); |
| goto out_free_ctx; |
| } |
| break; |
| case ICE_VERSION_RUNNING: |
| err = devlink_info_version_running_put(req, key, ctx->buf); |
| if (err) { |
| NL_SET_ERR_MSG_MOD(extack, "Unable to set running version"); |
| goto out_free_ctx; |
| } |
| break; |
| case ICE_VERSION_STORED: |
| err = devlink_info_version_stored_put(req, key, ctx->buf); |
| if (err) { |
| NL_SET_ERR_MSG_MOD(extack, "Unable to set stored version"); |
| goto out_free_ctx; |
| } |
| break; |
| } |
| } |
| |
| out_free_ctx: |
| kfree(ctx); |
| return err; |
| } |
| |
| /** |
| * ice_devlink_reload_empr_start - Start EMP reset to activate new firmware |
| * @devlink: pointer to the devlink instance to reload |
| * @netns_change: if true, the network namespace is changing |
| * @action: the action to perform. Must be DEVLINK_RELOAD_ACTION_FW_ACTIVATE |
| * @limit: limits on what reload should do, such as not resetting |
| * @extack: netlink extended ACK structure |
| * |
| * Allow user to activate new Embedded Management Processor firmware by |
| * issuing device specific EMP reset. Called in response to |
| * a DEVLINK_CMD_RELOAD with the DEVLINK_RELOAD_ACTION_FW_ACTIVATE. |
| * |
| * Note that teardown and rebuild of the driver state happens automatically as |
| * part of an interrupt and watchdog task. This is because all physical |
| * functions on the device must be able to reset when an EMP reset occurs from |
| * any source. |
| */ |
| static int |
| ice_devlink_reload_empr_start(struct devlink *devlink, bool netns_change, |
| enum devlink_reload_action action, |
| enum devlink_reload_limit limit, |
| struct netlink_ext_ack *extack) |
| { |
| struct ice_pf *pf = devlink_priv(devlink); |
| struct device *dev = ice_pf_to_dev(pf); |
| struct ice_hw *hw = &pf->hw; |
| u8 pending; |
| int err; |
| |
| err = ice_get_pending_updates(pf, &pending, extack); |
| if (err) |
| return err; |
| |
| /* pending is a bitmask of which flash banks have a pending update, |
| * including the main NVM bank, the Option ROM bank, and the netlist |
| * bank. If any of these bits are set, then there is a pending update |
| * waiting to be activated. |
| */ |
| if (!pending) { |
| NL_SET_ERR_MSG_MOD(extack, "No pending firmware update"); |
| return -ECANCELED; |
| } |
| |
| if (pf->fw_emp_reset_disabled) { |
| NL_SET_ERR_MSG_MOD(extack, "EMP reset is not available. To activate firmware, a reboot or power cycle is needed"); |
| return -ECANCELED; |
| } |
| |
| dev_dbg(dev, "Issuing device EMP reset to activate firmware\n"); |
| |
| err = ice_aq_nvm_update_empr(hw); |
| if (err) { |
| dev_err(dev, "Failed to trigger EMP device reset to reload firmware, err %d aq_err %s\n", |
| err, ice_aq_str(hw->adminq.sq_last_status)); |
| NL_SET_ERR_MSG_MOD(extack, "Failed to trigger EMP device reset to reload firmware"); |
| return err; |
| } |
| |
| return 0; |
| } |
| |
| /** |
| * ice_devlink_reload_empr_finish - Wait for EMP reset to finish |
| * @devlink: pointer to the devlink instance reloading |
| * @action: the action requested |
| * @limit: limits imposed by userspace, such as not resetting |
| * @actions_performed: on return, indicate what actions actually performed |
| * @extack: netlink extended ACK structure |
| * |
| * Wait for driver to finish rebuilding after EMP reset is completed. This |
| * includes time to wait for both the actual device reset as well as the time |
| * for the driver's rebuild to complete. |
| */ |
| static int |
| ice_devlink_reload_empr_finish(struct devlink *devlink, |
| enum devlink_reload_action action, |
| enum devlink_reload_limit limit, |
| u32 *actions_performed, |
| struct netlink_ext_ack *extack) |
| { |
| struct ice_pf *pf = devlink_priv(devlink); |
| int err; |
| |
| *actions_performed = BIT(DEVLINK_RELOAD_ACTION_FW_ACTIVATE); |
| |
| err = ice_wait_for_reset(pf, 60 * HZ); |
| if (err) { |
| NL_SET_ERR_MSG_MOD(extack, "Device still resetting after 1 minute"); |
| return err; |
| } |
| |
| return 0; |
| } |
| |
| /** |
| * ice_devlink_port_opt_speed_str - convert speed to a string |
| * @speed: speed value |
| */ |
| static const char *ice_devlink_port_opt_speed_str(u8 speed) |
| { |
| switch (speed & ICE_AQC_PORT_OPT_MAX_LANE_M) { |
| case ICE_AQC_PORT_OPT_MAX_LANE_100M: |
| return "0.1"; |
| case ICE_AQC_PORT_OPT_MAX_LANE_1G: |
| return "1"; |
| case ICE_AQC_PORT_OPT_MAX_LANE_2500M: |
| return "2.5"; |
| case ICE_AQC_PORT_OPT_MAX_LANE_5G: |
| return "5"; |
| case ICE_AQC_PORT_OPT_MAX_LANE_10G: |
| return "10"; |
| case ICE_AQC_PORT_OPT_MAX_LANE_25G: |
| return "25"; |
| case ICE_AQC_PORT_OPT_MAX_LANE_50G: |
| return "50"; |
| case ICE_AQC_PORT_OPT_MAX_LANE_100G: |
| return "100"; |
| } |
| |
| return "-"; |
| } |
| |
| #define ICE_PORT_OPT_DESC_LEN 50 |
| /** |
| * ice_devlink_port_options_print - Print available port split options |
| * @pf: the PF to print split port options |
| * |
| * Prints a table with available port split options and max port speeds |
| */ |
| static void ice_devlink_port_options_print(struct ice_pf *pf) |
| { |
| u8 i, j, options_count, cnt, speed, pending_idx, active_idx; |
| struct ice_aqc_get_port_options_elem *options, *opt; |
| struct device *dev = ice_pf_to_dev(pf); |
| bool active_valid, pending_valid; |
| char desc[ICE_PORT_OPT_DESC_LEN]; |
| const char *str; |
| int status; |
| |
| options = kcalloc(ICE_AQC_PORT_OPT_MAX * ICE_MAX_PORT_PER_PCI_DEV, |
| sizeof(*options), GFP_KERNEL); |
| if (!options) |
| return; |
| |
| for (i = 0; i < ICE_MAX_PORT_PER_PCI_DEV; i++) { |
| opt = options + i * ICE_AQC_PORT_OPT_MAX; |
| options_count = ICE_AQC_PORT_OPT_MAX; |
| active_valid = 0; |
| |
| status = ice_aq_get_port_options(&pf->hw, opt, &options_count, |
| i, true, &active_idx, |
| &active_valid, &pending_idx, |
| &pending_valid); |
| if (status) { |
| dev_dbg(dev, "Couldn't read port option for port %d, err %d\n", |
| i, status); |
| goto err; |
| } |
| } |
| |
| dev_dbg(dev, "Available port split options and max port speeds (Gbps):\n"); |
| dev_dbg(dev, "Status Split Quad 0 Quad 1\n"); |
| dev_dbg(dev, " count L0 L1 L2 L3 L4 L5 L6 L7\n"); |
| |
| for (i = 0; i < options_count; i++) { |
| cnt = 0; |
| |
| if (i == ice_active_port_option) |
| str = "Active"; |
| else if ((i == pending_idx) && pending_valid) |
| str = "Pending"; |
| else |
| str = ""; |
| |
| cnt += snprintf(&desc[cnt], ICE_PORT_OPT_DESC_LEN - cnt, |
| "%-8s", str); |
| |
| cnt += snprintf(&desc[cnt], ICE_PORT_OPT_DESC_LEN - cnt, |
| "%-6u", options[i].pmd); |
| |
| for (j = 0; j < ICE_MAX_PORT_PER_PCI_DEV; ++j) { |
| speed = options[i + j * ICE_AQC_PORT_OPT_MAX].max_lane_speed; |
| str = ice_devlink_port_opt_speed_str(speed); |
| cnt += snprintf(&desc[cnt], ICE_PORT_OPT_DESC_LEN - cnt, |
| "%3s ", str); |
| } |
| |
| dev_dbg(dev, "%s\n", desc); |
| } |
| |
| err: |
| kfree(options); |
| } |
| |
| /** |
| * ice_devlink_aq_set_port_option - Send set port option admin queue command |
| * @pf: the PF to print split port options |
| * @option_idx: selected port option |
| * @extack: extended netdev ack structure |
| * |
| * Sends set port option admin queue command with selected port option and |
| * calls NVM write activate. |
| */ |
| static int |
| ice_devlink_aq_set_port_option(struct ice_pf *pf, u8 option_idx, |
| struct netlink_ext_ack *extack) |
| { |
| struct device *dev = ice_pf_to_dev(pf); |
| int status; |
| |
| status = ice_aq_set_port_option(&pf->hw, 0, true, option_idx); |
| if (status) { |
| dev_dbg(dev, "ice_aq_set_port_option, err %d aq_err %d\n", |
| status, pf->hw.adminq.sq_last_status); |
| NL_SET_ERR_MSG_MOD(extack, "Port split request failed"); |
| return -EIO; |
| } |
| |
| status = ice_acquire_nvm(&pf->hw, ICE_RES_WRITE); |
| if (status) { |
| dev_dbg(dev, "ice_acquire_nvm failed, err %d aq_err %d\n", |
| status, pf->hw.adminq.sq_last_status); |
| NL_SET_ERR_MSG_MOD(extack, "Failed to acquire NVM semaphore"); |
| return -EIO; |
| } |
| |
| status = ice_nvm_write_activate(&pf->hw, ICE_AQC_NVM_ACTIV_REQ_EMPR, NULL); |
| if (status) { |
| dev_dbg(dev, "ice_nvm_write_activate failed, err %d aq_err %d\n", |
| status, pf->hw.adminq.sq_last_status); |
| NL_SET_ERR_MSG_MOD(extack, "Port split request failed to save data"); |
| ice_release_nvm(&pf->hw); |
| return -EIO; |
| } |
| |
| ice_release_nvm(&pf->hw); |
| |
| NL_SET_ERR_MSG_MOD(extack, "Reboot required to finish port split"); |
| return 0; |
| } |
| |
| /** |
| * ice_devlink_port_split - .port_split devlink handler |
| * @devlink: devlink instance structure |
| * @port: devlink port structure |
| * @count: number of ports to split to |
| * @extack: extended netdev ack structure |
| * |
| * Callback for the devlink .port_split operation. |
| * |
| * Unfortunately, the devlink expression of available options is limited |
| * to just a number, so search for an FW port option which supports |
| * the specified number. As there could be multiple FW port options with |
| * the same port split count, allow switching between them. When the same |
| * port split count request is issued again, switch to the next FW port |
| * option with the same port split count. |
| * |
| * Return: zero on success or an error code on failure. |
| */ |
| static int |
| ice_devlink_port_split(struct devlink *devlink, struct devlink_port *port, |
| unsigned int count, struct netlink_ext_ack *extack) |
| { |
| struct ice_aqc_get_port_options_elem options[ICE_AQC_PORT_OPT_MAX]; |
| u8 i, j, active_idx, pending_idx, new_option; |
| struct ice_pf *pf = devlink_priv(devlink); |
| u8 option_count = ICE_AQC_PORT_OPT_MAX; |
| struct device *dev = ice_pf_to_dev(pf); |
| bool active_valid, pending_valid; |
| int status; |
| |
| status = ice_aq_get_port_options(&pf->hw, options, &option_count, |
| 0, true, &active_idx, &active_valid, |
| &pending_idx, &pending_valid); |
| if (status) { |
| dev_dbg(dev, "Couldn't read port split options, err = %d\n", |
| status); |
| NL_SET_ERR_MSG_MOD(extack, "Failed to get available port split options"); |
| return -EIO; |
| } |
| |
| new_option = ICE_AQC_PORT_OPT_MAX; |
| active_idx = pending_valid ? pending_idx : active_idx; |
| for (i = 1; i <= option_count; i++) { |
| /* In order to allow switching between FW port options with |
| * the same port split count, search for a new option starting |
| * from the active/pending option (with array wrap around). |
| */ |
| j = (active_idx + i) % option_count; |
| |
| if (count == options[j].pmd) { |
| new_option = j; |
| break; |
| } |
| } |
| |
| if (new_option == active_idx) { |
| dev_dbg(dev, "request to split: count: %u is already set and there are no other options\n", |
| count); |
| NL_SET_ERR_MSG_MOD(extack, "Requested split count is already set"); |
| ice_devlink_port_options_print(pf); |
| return -EINVAL; |
| } |
| |
| if (new_option == ICE_AQC_PORT_OPT_MAX) { |
| dev_dbg(dev, "request to split: count: %u not found\n", count); |
| NL_SET_ERR_MSG_MOD(extack, "Port split requested unsupported port config"); |
| ice_devlink_port_options_print(pf); |
| return -EINVAL; |
| } |
| |
| status = ice_devlink_aq_set_port_option(pf, new_option, extack); |
| if (status) |
| return status; |
| |
| ice_devlink_port_options_print(pf); |
| |
| return 0; |
| } |
| |
| /** |
| * ice_devlink_port_unsplit - .port_unsplit devlink handler |
| * @devlink: devlink instance structure |
| * @port: devlink port structure |
| * @extack: extended netdev ack structure |
| * |
| * Callback for the devlink .port_unsplit operation. |
| * Calls ice_devlink_port_split with split count set to 1. |
| * There could be no FW option available with split count 1. |
| * |
| * Return: zero on success or an error code on failure. |
| */ |
| static int |
| ice_devlink_port_unsplit(struct devlink *devlink, struct devlink_port *port, |
| struct netlink_ext_ack *extack) |
| { |
| return ice_devlink_port_split(devlink, port, 1, extack); |
| } |
| |
| static const struct devlink_ops ice_devlink_ops = { |
| .supported_flash_update_params = DEVLINK_SUPPORT_FLASH_UPDATE_OVERWRITE_MASK, |
| .reload_actions = BIT(DEVLINK_RELOAD_ACTION_FW_ACTIVATE), |
| /* The ice driver currently does not support driver reinit */ |
| .reload_down = ice_devlink_reload_empr_start, |
| .reload_up = ice_devlink_reload_empr_finish, |
| .port_split = ice_devlink_port_split, |
| .port_unsplit = ice_devlink_port_unsplit, |
| .eswitch_mode_get = ice_eswitch_mode_get, |
| .eswitch_mode_set = ice_eswitch_mode_set, |
| .info_get = ice_devlink_info_get, |
| .flash_update = ice_devlink_flash_update, |
| }; |
| |
| static int |
| ice_devlink_enable_roce_get(struct devlink *devlink, u32 id, |
| struct devlink_param_gset_ctx *ctx) |
| { |
| struct ice_pf *pf = devlink_priv(devlink); |
| |
| ctx->val.vbool = pf->rdma_mode & IIDC_RDMA_PROTOCOL_ROCEV2 ? true : false; |
| |
| return 0; |
| } |
| |
| static int |
| ice_devlink_enable_roce_set(struct devlink *devlink, u32 id, |
| struct devlink_param_gset_ctx *ctx) |
| { |
| struct ice_pf *pf = devlink_priv(devlink); |
| bool roce_ena = ctx->val.vbool; |
| int ret; |
| |
| if (!roce_ena) { |
| ice_unplug_aux_dev(pf); |
| pf->rdma_mode &= ~IIDC_RDMA_PROTOCOL_ROCEV2; |
| return 0; |
| } |
| |
| pf->rdma_mode |= IIDC_RDMA_PROTOCOL_ROCEV2; |
| ret = ice_plug_aux_dev(pf); |
| if (ret) |
| pf->rdma_mode &= ~IIDC_RDMA_PROTOCOL_ROCEV2; |
| |
| return ret; |
| } |
| |
| static int |
| ice_devlink_enable_roce_validate(struct devlink *devlink, u32 id, |
| union devlink_param_value val, |
| struct netlink_ext_ack *extack) |
| { |
| struct ice_pf *pf = devlink_priv(devlink); |
| |
| if (!test_bit(ICE_FLAG_RDMA_ENA, pf->flags)) |
| return -EOPNOTSUPP; |
| |
| if (pf->rdma_mode & IIDC_RDMA_PROTOCOL_IWARP) { |
| NL_SET_ERR_MSG_MOD(extack, "iWARP is currently enabled. This device cannot enable iWARP and RoCEv2 simultaneously"); |
| return -EOPNOTSUPP; |
| } |
| |
| return 0; |
| } |
| |
| static int |
| ice_devlink_enable_iw_get(struct devlink *devlink, u32 id, |
| struct devlink_param_gset_ctx *ctx) |
| { |
| struct ice_pf *pf = devlink_priv(devlink); |
| |
| ctx->val.vbool = pf->rdma_mode & IIDC_RDMA_PROTOCOL_IWARP; |
| |
| return 0; |
| } |
| |
| static int |
| ice_devlink_enable_iw_set(struct devlink *devlink, u32 id, |
| struct devlink_param_gset_ctx *ctx) |
| { |
| struct ice_pf *pf = devlink_priv(devlink); |
| bool iw_ena = ctx->val.vbool; |
| int ret; |
| |
| if (!iw_ena) { |
| ice_unplug_aux_dev(pf); |
| pf->rdma_mode &= ~IIDC_RDMA_PROTOCOL_IWARP; |
| return 0; |
| } |
| |
| pf->rdma_mode |= IIDC_RDMA_PROTOCOL_IWARP; |
| ret = ice_plug_aux_dev(pf); |
| if (ret) |
| pf->rdma_mode &= ~IIDC_RDMA_PROTOCOL_IWARP; |
| |
| return ret; |
| } |
| |
| static int |
| ice_devlink_enable_iw_validate(struct devlink *devlink, u32 id, |
| union devlink_param_value val, |
| struct netlink_ext_ack *extack) |
| { |
| struct ice_pf *pf = devlink_priv(devlink); |
| |
| if (!test_bit(ICE_FLAG_RDMA_ENA, pf->flags)) |
| return -EOPNOTSUPP; |
| |
| if (pf->rdma_mode & IIDC_RDMA_PROTOCOL_ROCEV2) { |
| NL_SET_ERR_MSG_MOD(extack, "RoCEv2 is currently enabled. This device cannot enable iWARP and RoCEv2 simultaneously"); |
| return -EOPNOTSUPP; |
| } |
| |
| return 0; |
| } |
| |
| static const struct devlink_param ice_devlink_params[] = { |
| DEVLINK_PARAM_GENERIC(ENABLE_ROCE, BIT(DEVLINK_PARAM_CMODE_RUNTIME), |
| ice_devlink_enable_roce_get, |
| ice_devlink_enable_roce_set, |
| ice_devlink_enable_roce_validate), |
| DEVLINK_PARAM_GENERIC(ENABLE_IWARP, BIT(DEVLINK_PARAM_CMODE_RUNTIME), |
| ice_devlink_enable_iw_get, |
| ice_devlink_enable_iw_set, |
| ice_devlink_enable_iw_validate), |
| |
| }; |
| |
| static void ice_devlink_free(void *devlink_ptr) |
| { |
| devlink_free((struct devlink *)devlink_ptr); |
| } |
| |
| /** |
| * ice_allocate_pf - Allocate devlink and return PF structure pointer |
| * @dev: the device to allocate for |
| * |
| * Allocate a devlink instance for this device and return the private area as |
| * the PF structure. The devlink memory is kept track of through devres by |
| * adding an action to remove it when unwinding. |
| */ |
| struct ice_pf *ice_allocate_pf(struct device *dev) |
| { |
| struct devlink *devlink; |
| |
| devlink = devlink_alloc(&ice_devlink_ops, sizeof(struct ice_pf), dev); |
| if (!devlink) |
| return NULL; |
| |
| /* Add an action to teardown the devlink when unwinding the driver */ |
| if (devm_add_action_or_reset(dev, ice_devlink_free, devlink)) |
| return NULL; |
| |
| return devlink_priv(devlink); |
| } |
| |
| /** |
| * ice_devlink_register - Register devlink interface for this PF |
| * @pf: the PF to register the devlink for. |
| * |
| * Register the devlink instance associated with this physical function. |
| * |
| * Return: zero on success or an error code on failure. |
| */ |
| void ice_devlink_register(struct ice_pf *pf) |
| { |
| struct devlink *devlink = priv_to_devlink(pf); |
| |
| devlink_set_features(devlink, DEVLINK_F_RELOAD); |
| devlink_register(devlink); |
| } |
| |
| /** |
| * ice_devlink_unregister - Unregister devlink resources for this PF. |
| * @pf: the PF structure to cleanup |
| * |
| * Releases resources used by devlink and cleans up associated memory. |
| */ |
| void ice_devlink_unregister(struct ice_pf *pf) |
| { |
| devlink_unregister(priv_to_devlink(pf)); |
| } |
| |
| /** |
| * ice_devlink_set_switch_id - Set unique switch id based on pci dsn |
| * @pf: the PF to create a devlink port for |
| * @ppid: struct with switch id information |
| */ |
| static void |
| ice_devlink_set_switch_id(struct ice_pf *pf, struct netdev_phys_item_id *ppid) |
| { |
| struct pci_dev *pdev = pf->pdev; |
| u64 id; |
| |
| id = pci_get_dsn(pdev); |
| |
| ppid->id_len = sizeof(id); |
| put_unaligned_be64(id, &ppid->id); |
| } |
| |
| int ice_devlink_register_params(struct ice_pf *pf) |
| { |
| struct devlink *devlink = priv_to_devlink(pf); |
| union devlink_param_value value; |
| int err; |
| |
| err = devlink_params_register(devlink, ice_devlink_params, |
| ARRAY_SIZE(ice_devlink_params)); |
| if (err) |
| return err; |
| |
| value.vbool = false; |
| devlink_param_driverinit_value_set(devlink, |
| DEVLINK_PARAM_GENERIC_ID_ENABLE_IWARP, |
| value); |
| |
| value.vbool = test_bit(ICE_FLAG_RDMA_ENA, pf->flags) ? true : false; |
| devlink_param_driverinit_value_set(devlink, |
| DEVLINK_PARAM_GENERIC_ID_ENABLE_ROCE, |
| value); |
| |
| return 0; |
| } |
| |
| void ice_devlink_unregister_params(struct ice_pf *pf) |
| { |
| devlink_params_unregister(priv_to_devlink(pf), ice_devlink_params, |
| ARRAY_SIZE(ice_devlink_params)); |
| } |
| |
| /** |
| * ice_devlink_set_port_split_options - Set port split options |
| * @pf: the PF to set port split options |
| * @attrs: devlink attributes |
| * |
| * Sets devlink port split options based on available FW port options |
| */ |
| static void |
| ice_devlink_set_port_split_options(struct ice_pf *pf, |
| struct devlink_port_attrs *attrs) |
| { |
| struct ice_aqc_get_port_options_elem options[ICE_AQC_PORT_OPT_MAX]; |
| u8 i, active_idx, pending_idx, option_count = ICE_AQC_PORT_OPT_MAX; |
| bool active_valid, pending_valid; |
| int status; |
| |
| status = ice_aq_get_port_options(&pf->hw, options, &option_count, |
| 0, true, &active_idx, &active_valid, |
| &pending_idx, &pending_valid); |
| if (status) { |
| dev_dbg(ice_pf_to_dev(pf), "Couldn't read port split options, err = %d\n", |
| status); |
| return; |
| } |
| |
| /* find the biggest available port split count */ |
| for (i = 0; i < option_count; i++) |
| attrs->lanes = max_t(int, attrs->lanes, options[i].pmd); |
| |
| attrs->splittable = attrs->lanes ? 1 : 0; |
| ice_active_port_option = active_idx; |
| } |
| |
| /** |
| * ice_devlink_create_pf_port - Create a devlink port for this PF |
| * @pf: the PF to create a devlink port for |
| * |
| * Create and register a devlink_port for this PF. |
| * |
| * Return: zero on success or an error code on failure. |
| */ |
| int ice_devlink_create_pf_port(struct ice_pf *pf) |
| { |
| struct devlink_port_attrs attrs = {}; |
| struct devlink_port *devlink_port; |
| struct devlink *devlink; |
| struct ice_vsi *vsi; |
| struct device *dev; |
| int err; |
| |
| dev = ice_pf_to_dev(pf); |
| |
| devlink_port = &pf->devlink_port; |
| |
| vsi = ice_get_main_vsi(pf); |
| if (!vsi) |
| return -EIO; |
| |
| attrs.flavour = DEVLINK_PORT_FLAVOUR_PHYSICAL; |
| attrs.phys.port_number = pf->hw.bus.func; |
| |
| /* As FW supports only port split options for whole device, |
| * set port split options only for first PF. |
| */ |
| if (pf->hw.pf_id == 0) |
| ice_devlink_set_port_split_options(pf, &attrs); |
| |
| ice_devlink_set_switch_id(pf, &attrs.switch_id); |
| |
| devlink_port_attrs_set(devlink_port, &attrs); |
| devlink = priv_to_devlink(pf); |
| |
| err = devlink_port_register(devlink, devlink_port, vsi->idx); |
| if (err) { |
| dev_err(dev, "Failed to create devlink port for PF %d, error %d\n", |
| pf->hw.pf_id, err); |
| return err; |
| } |
| |
| return 0; |
| } |
| |
| /** |
| * ice_devlink_destroy_pf_port - Destroy the devlink_port for this PF |
| * @pf: the PF to cleanup |
| * |
| * Unregisters the devlink_port structure associated with this PF. |
| */ |
| void ice_devlink_destroy_pf_port(struct ice_pf *pf) |
| { |
| struct devlink_port *devlink_port; |
| |
| devlink_port = &pf->devlink_port; |
| |
| devlink_port_type_clear(devlink_port); |
| devlink_port_unregister(devlink_port); |
| } |
| |
| /** |
| * ice_devlink_create_vf_port - Create a devlink port for this VF |
| * @vf: the VF to create a port for |
| * |
| * Create and register a devlink_port for this VF. |
| * |
| * Return: zero on success or an error code on failure. |
| */ |
| int ice_devlink_create_vf_port(struct ice_vf *vf) |
| { |
| struct devlink_port_attrs attrs = {}; |
| struct devlink_port *devlink_port; |
| struct devlink *devlink; |
| struct ice_vsi *vsi; |
| struct device *dev; |
| struct ice_pf *pf; |
| int err; |
| |
| pf = vf->pf; |
| dev = ice_pf_to_dev(pf); |
| devlink_port = &vf->devlink_port; |
| |
| vsi = ice_get_vf_vsi(vf); |
| if (!vsi) |
| return -EINVAL; |
| |
| attrs.flavour = DEVLINK_PORT_FLAVOUR_PCI_VF; |
| attrs.pci_vf.pf = pf->hw.bus.func; |
| attrs.pci_vf.vf = vf->vf_id; |
| |
| ice_devlink_set_switch_id(pf, &attrs.switch_id); |
| |
| devlink_port_attrs_set(devlink_port, &attrs); |
| devlink = priv_to_devlink(pf); |
| |
| err = devlink_port_register(devlink, devlink_port, vsi->idx); |
| if (err) { |
| dev_err(dev, "Failed to create devlink port for VF %d, error %d\n", |
| vf->vf_id, err); |
| return err; |
| } |
| |
| return 0; |
| } |
| |
| /** |
| * ice_devlink_destroy_vf_port - Destroy the devlink_port for this VF |
| * @vf: the VF to cleanup |
| * |
| * Unregisters the devlink_port structure associated with this VF. |
| */ |
| void ice_devlink_destroy_vf_port(struct ice_vf *vf) |
| { |
| struct devlink_port *devlink_port; |
| |
| devlink_port = &vf->devlink_port; |
| |
| devlink_port_type_clear(devlink_port); |
| devlink_port_unregister(devlink_port); |
| } |
| |
| #define ICE_DEVLINK_READ_BLK_SIZE (1024 * 1024) |
| |
| /** |
| * ice_devlink_nvm_snapshot - Capture a snapshot of the NVM flash contents |
| * @devlink: the devlink instance |
| * @ops: the devlink region being snapshotted |
| * @extack: extended ACK response structure |
| * @data: on exit points to snapshot data buffer |
| * |
| * This function is called in response to the DEVLINK_CMD_REGION_TRIGGER for |
| * the nvm-flash devlink region. It captures a snapshot of the full NVM flash |
| * contents, including both banks of flash. This snapshot can later be viewed |
| * via the devlink-region interface. |
| * |
| * It captures the flash using the FLASH_ONLY bit set when reading via |
| * firmware, so it does not read the current Shadow RAM contents. For that, |
| * use the shadow-ram region. |
| * |
| * @returns zero on success, and updates the data pointer. Returns a non-zero |
| * error code on failure. |
| */ |
| static int ice_devlink_nvm_snapshot(struct devlink *devlink, |
| const struct devlink_region_ops *ops, |
| struct netlink_ext_ack *extack, u8 **data) |
| { |
| struct ice_pf *pf = devlink_priv(devlink); |
| struct device *dev = ice_pf_to_dev(pf); |
| struct ice_hw *hw = &pf->hw; |
| u8 *nvm_data, *tmp, i; |
| u32 nvm_size, left; |
| s8 num_blks; |
| int status; |
| |
| nvm_size = hw->flash.flash_size; |
| nvm_data = vzalloc(nvm_size); |
| if (!nvm_data) |
| return -ENOMEM; |
| |
| |
| num_blks = DIV_ROUND_UP(nvm_size, ICE_DEVLINK_READ_BLK_SIZE); |
| tmp = nvm_data; |
| left = nvm_size; |
| |
| /* Some systems take longer to read the NVM than others which causes the |
| * FW to reclaim the NVM lock before the entire NVM has been read. Fix |
| * this by breaking the reads of the NVM into smaller chunks that will |
| * probably not take as long. This has some overhead since we are |
| * increasing the number of AQ commands, but it should always work |
| */ |
| for (i = 0; i < num_blks; i++) { |
| u32 read_sz = min_t(u32, ICE_DEVLINK_READ_BLK_SIZE, left); |
| |
| status = ice_acquire_nvm(hw, ICE_RES_READ); |
| if (status) { |
| dev_dbg(dev, "ice_acquire_nvm failed, err %d aq_err %d\n", |
| status, hw->adminq.sq_last_status); |
| NL_SET_ERR_MSG_MOD(extack, "Failed to acquire NVM semaphore"); |
| vfree(nvm_data); |
| return -EIO; |
| } |
| |
| status = ice_read_flat_nvm(hw, i * ICE_DEVLINK_READ_BLK_SIZE, |
| &read_sz, tmp, false); |
| if (status) { |
| dev_dbg(dev, "ice_read_flat_nvm failed after reading %u bytes, err %d aq_err %d\n", |
| read_sz, status, hw->adminq.sq_last_status); |
| NL_SET_ERR_MSG_MOD(extack, "Failed to read NVM contents"); |
| ice_release_nvm(hw); |
| vfree(nvm_data); |
| return -EIO; |
| } |
| ice_release_nvm(hw); |
| |
| tmp += read_sz; |
| left -= read_sz; |
| } |
| |
| *data = nvm_data; |
| |
| return 0; |
| } |
| |
| /** |
| * ice_devlink_sram_snapshot - Capture a snapshot of the Shadow RAM contents |
| * @devlink: the devlink instance |
| * @ops: the devlink region being snapshotted |
| * @extack: extended ACK response structure |
| * @data: on exit points to snapshot data buffer |
| * |
| * This function is called in response to the DEVLINK_CMD_REGION_TRIGGER for |
| * the shadow-ram devlink region. It captures a snapshot of the shadow ram |
| * contents. This snapshot can later be viewed via the devlink-region |
| * interface. |
| * |
| * @returns zero on success, and updates the data pointer. Returns a non-zero |
| * error code on failure. |
| */ |
| static int |
| ice_devlink_sram_snapshot(struct devlink *devlink, |
| const struct devlink_region_ops __always_unused *ops, |
| struct netlink_ext_ack *extack, u8 **data) |
| { |
| struct ice_pf *pf = devlink_priv(devlink); |
| struct device *dev = ice_pf_to_dev(pf); |
| struct ice_hw *hw = &pf->hw; |
| u8 *sram_data; |
| u32 sram_size; |
| int err; |
| |
| sram_size = hw->flash.sr_words * 2u; |
| sram_data = vzalloc(sram_size); |
| if (!sram_data) |
| return -ENOMEM; |
| |
| err = ice_acquire_nvm(hw, ICE_RES_READ); |
| if (err) { |
| dev_dbg(dev, "ice_acquire_nvm failed, err %d aq_err %d\n", |
| err, hw->adminq.sq_last_status); |
| NL_SET_ERR_MSG_MOD(extack, "Failed to acquire NVM semaphore"); |
| vfree(sram_data); |
| return err; |
| } |
| |
| /* Read from the Shadow RAM, rather than directly from NVM */ |
| err = ice_read_flat_nvm(hw, 0, &sram_size, sram_data, true); |
| if (err) { |
| dev_dbg(dev, "ice_read_flat_nvm failed after reading %u bytes, err %d aq_err %d\n", |
| sram_size, err, hw->adminq.sq_last_status); |
| NL_SET_ERR_MSG_MOD(extack, |
| "Failed to read Shadow RAM contents"); |
| ice_release_nvm(hw); |
| vfree(sram_data); |
| return err; |
| } |
| |
| ice_release_nvm(hw); |
| |
| *data = sram_data; |
| |
| return 0; |
| } |
| |
| /** |
| * ice_devlink_devcaps_snapshot - Capture snapshot of device capabilities |
| * @devlink: the devlink instance |
| * @ops: the devlink region being snapshotted |
| * @extack: extended ACK response structure |
| * @data: on exit points to snapshot data buffer |
| * |
| * This function is called in response to the DEVLINK_CMD_REGION_TRIGGER for |
| * the device-caps devlink region. It captures a snapshot of the device |
| * capabilities reported by firmware. |
| * |
| * @returns zero on success, and updates the data pointer. Returns a non-zero |
| * error code on failure. |
| */ |
| static int |
| ice_devlink_devcaps_snapshot(struct devlink *devlink, |
| const struct devlink_region_ops *ops, |
| struct netlink_ext_ack *extack, u8 **data) |
| { |
| struct ice_pf *pf = devlink_priv(devlink); |
| struct device *dev = ice_pf_to_dev(pf); |
| struct ice_hw *hw = &pf->hw; |
| void *devcaps; |
| int status; |
| |
| devcaps = vzalloc(ICE_AQ_MAX_BUF_LEN); |
| if (!devcaps) |
| return -ENOMEM; |
| |
| status = ice_aq_list_caps(hw, devcaps, ICE_AQ_MAX_BUF_LEN, NULL, |
| ice_aqc_opc_list_dev_caps, NULL); |
| if (status) { |
| dev_dbg(dev, "ice_aq_list_caps: failed to read device capabilities, err %d aq_err %d\n", |
| status, hw->adminq.sq_last_status); |
| NL_SET_ERR_MSG_MOD(extack, "Failed to read device capabilities"); |
| vfree(devcaps); |
| return status; |
| } |
| |
| *data = (u8 *)devcaps; |
| |
| return 0; |
| } |
| |
| static const struct devlink_region_ops ice_nvm_region_ops = { |
| .name = "nvm-flash", |
| .destructor = vfree, |
| .snapshot = ice_devlink_nvm_snapshot, |
| }; |
| |
| static const struct devlink_region_ops ice_sram_region_ops = { |
| .name = "shadow-ram", |
| .destructor = vfree, |
| .snapshot = ice_devlink_sram_snapshot, |
| }; |
| |
| static const struct devlink_region_ops ice_devcaps_region_ops = { |
| .name = "device-caps", |
| .destructor = vfree, |
| .snapshot = ice_devlink_devcaps_snapshot, |
| }; |
| |
| /** |
| * ice_devlink_init_regions - Initialize devlink regions |
| * @pf: the PF device structure |
| * |
| * Create devlink regions used to enable access to dump the contents of the |
| * flash memory on the device. |
| */ |
| void ice_devlink_init_regions(struct ice_pf *pf) |
| { |
| struct devlink *devlink = priv_to_devlink(pf); |
| struct device *dev = ice_pf_to_dev(pf); |
| u64 nvm_size, sram_size; |
| |
| nvm_size = pf->hw.flash.flash_size; |
| pf->nvm_region = devlink_region_create(devlink, &ice_nvm_region_ops, 1, |
| nvm_size); |
| if (IS_ERR(pf->nvm_region)) { |
| dev_err(dev, "failed to create NVM devlink region, err %ld\n", |
| PTR_ERR(pf->nvm_region)); |
| pf->nvm_region = NULL; |
| } |
| |
| sram_size = pf->hw.flash.sr_words * 2u; |
| pf->sram_region = devlink_region_create(devlink, &ice_sram_region_ops, |
| 1, sram_size); |
| if (IS_ERR(pf->sram_region)) { |
| dev_err(dev, "failed to create shadow-ram devlink region, err %ld\n", |
| PTR_ERR(pf->sram_region)); |
| pf->sram_region = NULL; |
| } |
| |
| pf->devcaps_region = devlink_region_create(devlink, |
| &ice_devcaps_region_ops, 10, |
| ICE_AQ_MAX_BUF_LEN); |
| if (IS_ERR(pf->devcaps_region)) { |
| dev_err(dev, "failed to create device-caps devlink region, err %ld\n", |
| PTR_ERR(pf->devcaps_region)); |
| pf->devcaps_region = NULL; |
| } |
| } |
| |
| /** |
| * ice_devlink_destroy_regions - Destroy devlink regions |
| * @pf: the PF device structure |
| * |
| * Remove previously created regions for this PF. |
| */ |
| void ice_devlink_destroy_regions(struct ice_pf *pf) |
| { |
| if (pf->nvm_region) |
| devlink_region_destroy(pf->nvm_region); |
| |
| if (pf->sram_region) |
| devlink_region_destroy(pf->sram_region); |
| |
| if (pf->devcaps_region) |
| devlink_region_destroy(pf->devcaps_region); |
| } |