Author | Tokens | Token Proportion | Commits | Commit Proportion |
---|---|---|---|---|
Aleksandr Loktionov | 1590 | 76.26% | 1 | 3.03% |
Jesse Brandeburg | 102 | 4.89% | 7 | 21.21% |
Jacob E Keller | 88 | 4.22% | 3 | 9.09% |
Jingjing Wu | 80 | 3.84% | 1 | 3.03% |
Ivan Vecera | 64 | 3.07% | 3 | 9.09% |
Filip Sadowski | 57 | 2.73% | 1 | 3.03% |
Anjali Singhai Jain | 19 | 0.91% | 2 | 6.06% |
Jan Sokolowski | 15 | 0.72% | 2 | 6.06% |
Greg Rose | 12 | 0.58% | 1 | 3.03% |
Shannon Nelson | 12 | 0.58% | 2 | 6.06% |
Gustavo A. R. Silva | 10 | 0.48% | 1 | 3.03% |
Amritha Nambiar | 8 | 0.38% | 1 | 3.03% |
Alan Brady | 6 | 0.29% | 1 | 3.03% |
Neerav Parikh | 6 | 0.29% | 1 | 3.03% |
Justin Stitt | 5 | 0.24% | 1 | 3.03% |
Carolyn Wyborny | 4 | 0.19% | 1 | 3.03% |
Mitch A Williams | 3 | 0.14% | 1 | 3.03% |
Jeff Kirsher | 2 | 0.10% | 2 | 6.06% |
Sowmini Varadhan | 2 | 0.10% | 1 | 3.03% |
Total | 2085 | 33 |
// SPDX-License-Identifier: GPL-2.0 /* Copyright(c) 2013 - 2018 Intel Corporation. */ #include <linux/firmware.h> #include "i40e.h" #define I40_DDP_FLASH_REGION 100 #define I40E_PROFILE_INFO_SIZE 48 #define I40E_MAX_PROFILE_NUM 16 #define I40E_PROFILE_LIST_SIZE \ (I40E_PROFILE_INFO_SIZE * I40E_MAX_PROFILE_NUM + 4) #define I40E_DDP_PROFILE_PATH "intel/i40e/ddp/" #define I40E_DDP_PROFILE_NAME_MAX 64 struct i40e_ddp_profile_list { u32 p_count; struct i40e_profile_info p_info[]; }; struct i40e_ddp_old_profile_list { struct list_head list; size_t old_ddp_size; u8 old_ddp_buf[]; }; /** * i40e_ddp_profiles_eq - checks if DDP profiles are the equivalent * @a: new profile info * @b: old profile info * * checks if DDP profiles are the equivalent. * Returns true if profiles are the same. **/ static bool i40e_ddp_profiles_eq(struct i40e_profile_info *a, struct i40e_profile_info *b) { return a->track_id == b->track_id && !memcmp(&a->version, &b->version, sizeof(a->version)) && !memcmp(&a->name, &b->name, I40E_DDP_NAME_SIZE); } /** * i40e_ddp_does_profile_exist - checks if DDP profile loaded already * @hw: HW data structure * @pinfo: DDP profile information structure * * checks if DDP profile loaded already. * Returns >0 if the profile exists. * Returns 0 if the profile is absent. * Returns <0 if error. **/ static int i40e_ddp_does_profile_exist(struct i40e_hw *hw, struct i40e_profile_info *pinfo) { struct i40e_ddp_profile_list *profile_list; u8 buff[I40E_PROFILE_LIST_SIZE]; int status; int i; status = i40e_aq_get_ddp_list(hw, buff, I40E_PROFILE_LIST_SIZE, 0, NULL); if (status) return -1; profile_list = (struct i40e_ddp_profile_list *)buff; for (i = 0; i < profile_list->p_count; i++) { if (i40e_ddp_profiles_eq(pinfo, &profile_list->p_info[i])) return 1; } return 0; } /** * i40e_ddp_profiles_overlap - checks if DDP profiles overlap. * @new: new profile info * @old: old profile info * * checks if DDP profiles overlap. * Returns true if profiles are overlap. **/ static bool i40e_ddp_profiles_overlap(struct i40e_profile_info *new, struct i40e_profile_info *old) { unsigned int group_id_old = FIELD_GET(0x00FF0000, old->track_id); unsigned int group_id_new = FIELD_GET(0x00FF0000, new->track_id); /* 0x00 group must be only the first */ if (group_id_new == 0) return true; /* 0xFF group is compatible with anything else */ if (group_id_new == 0xFF || group_id_old == 0xFF) return false; /* otherwise only profiles from the same group are compatible*/ return group_id_old != group_id_new; } /** * i40e_ddp_does_profile_overlap - checks if DDP overlaps with existing one. * @hw: HW data structure * @pinfo: DDP profile information structure * * checks if DDP profile overlaps with existing one. * Returns >0 if the profile overlaps. * Returns 0 if the profile is ok. * Returns <0 if error. **/ static int i40e_ddp_does_profile_overlap(struct i40e_hw *hw, struct i40e_profile_info *pinfo) { struct i40e_ddp_profile_list *profile_list; u8 buff[I40E_PROFILE_LIST_SIZE]; int status; int i; status = i40e_aq_get_ddp_list(hw, buff, I40E_PROFILE_LIST_SIZE, 0, NULL); if (status) return -EIO; profile_list = (struct i40e_ddp_profile_list *)buff; for (i = 0; i < profile_list->p_count; i++) { if (i40e_ddp_profiles_overlap(pinfo, &profile_list->p_info[i])) return 1; } return 0; } /** * i40e_add_pinfo * @hw: pointer to the hardware structure * @profile: pointer to the profile segment of the package * @profile_info_sec: buffer for information section * @track_id: package tracking id * * Register a profile to the list of loaded profiles. */ static int i40e_add_pinfo(struct i40e_hw *hw, struct i40e_profile_segment *profile, u8 *profile_info_sec, u32 track_id) { struct i40e_profile_section_header *sec; struct i40e_profile_info *pinfo; u32 offset = 0, info = 0; int status; sec = (struct i40e_profile_section_header *)profile_info_sec; sec->tbl_size = 1; sec->data_end = sizeof(struct i40e_profile_section_header) + sizeof(struct i40e_profile_info); sec->section.type = SECTION_TYPE_INFO; sec->section.offset = sizeof(struct i40e_profile_section_header); sec->section.size = sizeof(struct i40e_profile_info); pinfo = (struct i40e_profile_info *)(profile_info_sec + sec->section.offset); pinfo->track_id = track_id; pinfo->version = profile->version; pinfo->op = I40E_DDP_ADD_TRACKID; /* Clear reserved field */ memset(pinfo->reserved, 0, sizeof(pinfo->reserved)); memcpy(pinfo->name, profile->name, I40E_DDP_NAME_SIZE); status = i40e_aq_write_ddp(hw, (void *)sec, sec->data_end, track_id, &offset, &info, NULL); return status; } /** * i40e_del_pinfo - delete DDP profile info from NIC * @hw: HW data structure * @profile: DDP profile segment to be deleted * @profile_info_sec: DDP profile section header * @track_id: track ID of the profile for deletion * * Removes DDP profile from the NIC. **/ static int i40e_del_pinfo(struct i40e_hw *hw, struct i40e_profile_segment *profile, u8 *profile_info_sec, u32 track_id) { struct i40e_profile_section_header *sec; struct i40e_profile_info *pinfo; u32 offset = 0, info = 0; int status; sec = (struct i40e_profile_section_header *)profile_info_sec; sec->tbl_size = 1; sec->data_end = sizeof(struct i40e_profile_section_header) + sizeof(struct i40e_profile_info); sec->section.type = SECTION_TYPE_INFO; sec->section.offset = sizeof(struct i40e_profile_section_header); sec->section.size = sizeof(struct i40e_profile_info); pinfo = (struct i40e_profile_info *)(profile_info_sec + sec->section.offset); pinfo->track_id = track_id; pinfo->version = profile->version; pinfo->op = I40E_DDP_REMOVE_TRACKID; /* Clear reserved field */ memset(pinfo->reserved, 0, sizeof(pinfo->reserved)); memcpy(pinfo->name, profile->name, I40E_DDP_NAME_SIZE); status = i40e_aq_write_ddp(hw, (void *)sec, sec->data_end, track_id, &offset, &info, NULL); return status; } /** * i40e_ddp_is_pkg_hdr_valid - performs basic pkg header integrity checks * @netdev: net device structure (for logging purposes) * @pkg_hdr: pointer to package header * @size_huge: size of the whole DDP profile package in size_t * * Checks correctness of pkg header: Version, size too big/small, and * all segment offsets alignment and boundaries. This function lets * reject non DDP profile file to be loaded by administrator mistake. **/ static bool i40e_ddp_is_pkg_hdr_valid(struct net_device *netdev, struct i40e_package_header *pkg_hdr, size_t size_huge) { u32 size = 0xFFFFFFFFU & size_huge; u32 pkg_hdr_size; u32 segment; if (!pkg_hdr) return false; if (pkg_hdr->version.major > 0) { struct i40e_ddp_version ver = pkg_hdr->version; netdev_err(netdev, "Unsupported DDP profile version %u.%u.%u.%u", ver.major, ver.minor, ver.update, ver.draft); return false; } if (size_huge > size) { netdev_err(netdev, "Invalid DDP profile - size is bigger than 4G"); return false; } if (size < (sizeof(struct i40e_package_header) + sizeof(u32) + sizeof(struct i40e_metadata_segment) + sizeof(u32) * 2)) { netdev_err(netdev, "Invalid DDP profile - size is too small."); return false; } pkg_hdr_size = sizeof(u32) * (pkg_hdr->segment_count + 2U); if (size < pkg_hdr_size) { netdev_err(netdev, "Invalid DDP profile - too many segments"); return false; } for (segment = 0; segment < pkg_hdr->segment_count; ++segment) { u32 offset = pkg_hdr->segment_offset[segment]; if (0xFU & offset) { netdev_err(netdev, "Invalid DDP profile %u segment alignment", segment); return false; } if (pkg_hdr_size > offset || offset >= size) { netdev_err(netdev, "Invalid DDP profile %u segment offset", segment); return false; } } return true; } /** * i40e_ddp_load - performs DDP loading * @netdev: net device structure * @data: buffer containing recipe file * @size: size of the buffer * @is_add: true when loading profile, false when rolling back the previous one * * Checks correctness and loads DDP profile to the NIC. The function is * also used for rolling back previously loaded profile. **/ static int i40e_ddp_load(struct net_device *netdev, const u8 *data, size_t size, bool is_add) { u8 profile_info_sec[sizeof(struct i40e_profile_section_header) + sizeof(struct i40e_profile_info)]; struct i40e_metadata_segment *metadata_hdr; struct i40e_profile_segment *profile_hdr; struct i40e_profile_info pinfo; struct i40e_package_header *pkg_hdr; struct i40e_netdev_priv *np = netdev_priv(netdev); struct i40e_vsi *vsi = np->vsi; struct i40e_pf *pf = vsi->back; u32 track_id; int istatus; int status; pkg_hdr = (struct i40e_package_header *)data; if (!i40e_ddp_is_pkg_hdr_valid(netdev, pkg_hdr, size)) return -EINVAL; if (size < (sizeof(struct i40e_package_header) + sizeof(u32) + sizeof(struct i40e_metadata_segment) + sizeof(u32) * 2)) { netdev_err(netdev, "Invalid DDP recipe size."); return -EINVAL; } /* Find beginning of segment data in buffer */ metadata_hdr = (struct i40e_metadata_segment *) i40e_find_segment_in_package(SEGMENT_TYPE_METADATA, pkg_hdr); if (!metadata_hdr) { netdev_err(netdev, "Failed to find metadata segment in DDP recipe."); return -EINVAL; } track_id = metadata_hdr->track_id; profile_hdr = (struct i40e_profile_segment *) i40e_find_segment_in_package(SEGMENT_TYPE_I40E, pkg_hdr); if (!profile_hdr) { netdev_err(netdev, "Failed to find profile segment in DDP recipe."); return -EINVAL; } pinfo.track_id = track_id; pinfo.version = profile_hdr->version; if (is_add) pinfo.op = I40E_DDP_ADD_TRACKID; else pinfo.op = I40E_DDP_REMOVE_TRACKID; memcpy(pinfo.name, profile_hdr->name, I40E_DDP_NAME_SIZE); /* Check if profile data already exists*/ istatus = i40e_ddp_does_profile_exist(&pf->hw, &pinfo); if (istatus < 0) { netdev_err(netdev, "Failed to fetch loaded profiles."); return istatus; } if (is_add) { if (istatus > 0) { netdev_err(netdev, "DDP profile already loaded."); return -EINVAL; } istatus = i40e_ddp_does_profile_overlap(&pf->hw, &pinfo); if (istatus < 0) { netdev_err(netdev, "Failed to fetch loaded profiles."); return istatus; } if (istatus > 0) { netdev_err(netdev, "DDP profile overlaps with existing one."); return -EINVAL; } } else { if (istatus == 0) { netdev_err(netdev, "DDP profile for deletion does not exist."); return -EINVAL; } } /* Load profile data */ if (is_add) { status = i40e_write_profile(&pf->hw, profile_hdr, track_id); if (status) { if (status == -ENODEV) { netdev_err(netdev, "Profile is not supported by the device."); return -EPERM; } netdev_err(netdev, "Failed to write DDP profile."); return -EIO; } } else { status = i40e_rollback_profile(&pf->hw, profile_hdr, track_id); if (status) { netdev_err(netdev, "Failed to remove DDP profile."); return -EIO; } } /* Add/remove profile to/from profile list in FW */ if (is_add) { status = i40e_add_pinfo(&pf->hw, profile_hdr, profile_info_sec, track_id); if (status) { netdev_err(netdev, "Failed to add DDP profile info."); return -EIO; } } else { status = i40e_del_pinfo(&pf->hw, profile_hdr, profile_info_sec, track_id); if (status) { netdev_err(netdev, "Failed to restore DDP profile info."); return -EIO; } } return 0; } /** * i40e_ddp_restore - restore previously loaded profile and remove from list * @pf: PF data struct * * Restores previously loaded profile stored on the list in driver memory. * After rolling back removes entry from the list. **/ static int i40e_ddp_restore(struct i40e_pf *pf) { struct i40e_vsi *vsi = i40e_pf_get_main_vsi(pf); struct net_device *netdev = vsi->netdev; struct i40e_ddp_old_profile_list *entry; int status = 0; if (!list_empty(&pf->ddp_old_prof)) { entry = list_first_entry(&pf->ddp_old_prof, struct i40e_ddp_old_profile_list, list); status = i40e_ddp_load(netdev, entry->old_ddp_buf, entry->old_ddp_size, false); list_del(&entry->list); kfree(entry); } return status; } /** * i40e_ddp_flash - callback function for ethtool flash feature * @netdev: net device structure * @flash: kernel flash structure * * Ethtool callback function used for loading and unloading DDP profiles. **/ int i40e_ddp_flash(struct net_device *netdev, struct ethtool_flash *flash) { const struct firmware *ddp_config; struct i40e_netdev_priv *np = netdev_priv(netdev); struct i40e_vsi *vsi = np->vsi; struct i40e_pf *pf = vsi->back; int status = 0; /* Check for valid region first */ if (flash->region != I40_DDP_FLASH_REGION) { netdev_err(netdev, "Requested firmware region is not recognized by this driver."); return -EINVAL; } if (pf->hw.bus.func != 0) { netdev_err(netdev, "Any DDP operation is allowed only on Phy0 NIC interface"); return -EINVAL; } /* If the user supplied "-" instead of file name rollback previously * stored profile. */ if (strncmp(flash->data, "-", 2) != 0) { struct i40e_ddp_old_profile_list *list_entry; char profile_name[sizeof(I40E_DDP_PROFILE_PATH) + I40E_DDP_PROFILE_NAME_MAX]; scnprintf(profile_name, sizeof(profile_name), "%s%s", I40E_DDP_PROFILE_PATH, flash->data); /* Load DDP recipe. */ status = request_firmware(&ddp_config, profile_name, &netdev->dev); if (status) { netdev_err(netdev, "DDP recipe file request failed."); return status; } status = i40e_ddp_load(netdev, ddp_config->data, ddp_config->size, true); if (!status) { list_entry = kzalloc(sizeof(struct i40e_ddp_old_profile_list) + ddp_config->size, GFP_KERNEL); if (!list_entry) { netdev_info(netdev, "Failed to allocate memory for previous DDP profile data."); netdev_info(netdev, "New profile loaded but roll-back will be impossible."); } else { memcpy(list_entry->old_ddp_buf, ddp_config->data, ddp_config->size); list_entry->old_ddp_size = ddp_config->size; list_add(&list_entry->list, &pf->ddp_old_prof); } } release_firmware(ddp_config); } else { if (!list_empty(&pf->ddp_old_prof)) { status = i40e_ddp_restore(pf); } else { netdev_warn(netdev, "There is no DDP profile to restore."); status = -ENOENT; } } return status; }
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