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Message-ID: <20231025214157.1222758-5-jacob.e.keller@intel.com>
Date: Wed, 25 Oct 2023 14:41:55 -0700
From: Jacob Keller <jacob.e.keller@...el.com>
To: netdev@...r.kernel.org,
David Miller <davem@...emloft.net>,
Jakub Kicinski <kuba@...nel.org>
Cc: Dan Nowlin <dan.nowlin@...el.com>,
Jesse Brandeburg <jesse.brandeburg@...el.com>,
Paul Greenwalt <paul.greenwalt@...el.com>,
Simon Horman <horms@...nel.org>,
Tony Brelinski <tony.brelinski@...el.com>,
Jacob Keller <jacob.e.keller@...el.com>
Subject: [PATCH net-next 4/6] ice: Add support for E830 DDP package segment
From: Dan Nowlin <dan.nowlin@...el.com>
Add support for E830 DDP package segment. For the E830 package,
signature buffers will not be included inline in the configuration
buffers. Instead, the signature buffers will be located in a
signature segment.
Reviewed-by: Jesse Brandeburg <jesse.brandeburg@...el.com>
Signed-off-by: Dan Nowlin <dan.nowlin@...el.com>
Co-developed-by: Paul Greenwalt <paul.greenwalt@...el.com>
Signed-off-by: Paul Greenwalt <paul.greenwalt@...el.com>
Reviewed-by: Simon Horman <horms@...nel.org>
Tested-by: Tony Brelinski <tony.brelinski@...el.com>
Signed-off-by: Jacob Keller <jacob.e.keller@...el.com>
---
drivers/net/ethernet/intel/ice/ice_ddp.c | 436 ++++++++++++++++++----
drivers/net/ethernet/intel/ice/ice_ddp.h | 27 +-
drivers/net/ethernet/intel/ice/ice_type.h | 3 +
3 files changed, 387 insertions(+), 79 deletions(-)
diff --git a/drivers/net/ethernet/intel/ice/ice_ddp.c b/drivers/net/ethernet/intel/ice/ice_ddp.c
index 78ed909745fe..cfb1580f5850 100644
--- a/drivers/net/ethernet/intel/ice/ice_ddp.c
+++ b/drivers/net/ethernet/intel/ice/ice_ddp.c
@@ -1201,23 +1201,120 @@ ice_aq_download_pkg(struct ice_hw *hw, struct ice_buf_hdr *pkg_buf,
}
/**
- * ice_dwnld_cfg_bufs
+ * ice_get_pkg_seg_by_idx
+ * @pkg_hdr: pointer to the package header to be searched
+ * @idx: index of segment
+ */
+static struct ice_generic_seg_hdr *
+ice_get_pkg_seg_by_idx(struct ice_pkg_hdr *pkg_hdr, u32 idx)
+{
+ if (idx < le32_to_cpu(pkg_hdr->seg_count))
+ return (struct ice_generic_seg_hdr *)
+ ((u8 *)pkg_hdr +
+ le32_to_cpu(pkg_hdr->seg_offset[idx]));
+
+ return NULL;
+}
+
+/**
+ * ice_is_signing_seg_at_idx - determine if segment is a signing segment
+ * @pkg_hdr: pointer to package header
+ * @idx: segment index
+ */
+static bool ice_is_signing_seg_at_idx(struct ice_pkg_hdr *pkg_hdr, u32 idx)
+{
+ struct ice_generic_seg_hdr *seg;
+
+ seg = ice_get_pkg_seg_by_idx(pkg_hdr, idx);
+ if (!seg)
+ return false;
+
+ return le32_to_cpu(seg->seg_type) == SEGMENT_TYPE_SIGNING;
+}
+
+/**
+ * ice_is_signing_seg_type_at_idx
+ * @pkg_hdr: pointer to package header
+ * @idx: segment index
+ * @seg_id: segment id that is expected
+ * @sign_type: signing type
+ *
+ * Determine if a segment is a signing segment of the correct type
+ */
+static bool
+ice_is_signing_seg_type_at_idx(struct ice_pkg_hdr *pkg_hdr, u32 idx,
+ u32 seg_id, u32 sign_type)
+{
+ struct ice_sign_seg *seg;
+
+ if (!ice_is_signing_seg_at_idx(pkg_hdr, idx))
+ return false;
+
+ seg = (struct ice_sign_seg *)ice_get_pkg_seg_by_idx(pkg_hdr, idx);
+
+ if (seg && le32_to_cpu(seg->seg_id) == seg_id &&
+ le32_to_cpu(seg->sign_type) == sign_type)
+ return true;
+
+ return false;
+}
+
+/**
+ * ice_is_buffer_metadata - determine if package buffer is a metadata buffer
+ * @buf: pointer to buffer header
+ */
+static bool ice_is_buffer_metadata(struct ice_buf_hdr *buf)
+{
+ if (le32_to_cpu(buf->section_entry[0].type) & ICE_METADATA_BUF)
+ return true;
+
+ return false;
+}
+
+/**
+ * ice_is_last_download_buffer
+ * @buf: pointer to current buffer header
+ * @idx: index of the buffer in the current sequence
+ * @count: the buffer count in the current sequence
+ *
+ * Note: this routine should only be called if the buffer is not the last buffer
+ */
+static bool
+ice_is_last_download_buffer(struct ice_buf_hdr *buf, u32 idx, u32 count)
+{
+ struct ice_buf *next_buf;
+
+ if ((idx + 1) == count)
+ return true;
+
+ /* A set metadata flag in the next buffer will signal that the current
+ * buffer will be the last buffer downloaded
+ */
+ next_buf = ((struct ice_buf *)buf) + 1;
+
+ return ice_is_buffer_metadata((struct ice_buf_hdr *)next_buf);
+}
+
+/**
+ * ice_dwnld_cfg_bufs_no_lock
* @hw: pointer to the hardware structure
* @bufs: pointer to an array of buffers
- * @count: the number of buffers in the array
+ * @start: buffer index of first buffer to download
+ * @count: the number of buffers to download
+ * @indicate_last: if true, then set last buffer flag on last buffer download
*
- * Obtains global config lock and downloads the package configuration buffers
- * to the firmware. Metadata buffers are skipped, and the first metadata buffer
- * found indicates that the rest of the buffers are all metadata buffers.
+ * Downloads package configuration buffers to the firmware. Metadata buffers
+ * are skipped, and the first metadata buffer found indicates that the rest
+ * of the buffers are all metadata buffers.
*/
-static enum ice_ddp_state ice_dwnld_cfg_bufs(struct ice_hw *hw,
- struct ice_buf *bufs, u32 count)
+static enum ice_ddp_state
+ice_dwnld_cfg_bufs_no_lock(struct ice_hw *hw, struct ice_buf *bufs, u32 start,
+ u32 count, bool indicate_last)
{
enum ice_ddp_state state = ICE_DDP_PKG_SUCCESS;
struct ice_buf_hdr *bh;
enum ice_aq_err err;
u32 offset, info, i;
- int status;
if (!bufs || !count)
return ICE_DDP_PKG_ERR;
@@ -1226,43 +1323,25 @@ static enum ice_ddp_state ice_dwnld_cfg_bufs(struct ice_hw *hw,
* then there are no buffers to be downloaded, and the operation is
* considered a success.
*/
- bh = (struct ice_buf_hdr *)bufs;
+ bh = (struct ice_buf_hdr *)(bufs + start);
if (le32_to_cpu(bh->section_entry[0].type) & ICE_METADATA_BUF)
return ICE_DDP_PKG_SUCCESS;
- status = ice_acquire_global_cfg_lock(hw, ICE_RES_WRITE);
- if (status) {
- if (status == -EALREADY)
- return ICE_DDP_PKG_ALREADY_LOADED;
- return ice_map_aq_err_to_ddp_state(hw->adminq.sq_last_status);
- }
-
for (i = 0; i < count; i++) {
- bool last = ((i + 1) == count);
+ bool last = false;
+ int status;
- if (!last) {
- /* check next buffer for metadata flag */
- bh = (struct ice_buf_hdr *)(bufs + i + 1);
+ bh = (struct ice_buf_hdr *)(bufs + start + i);
- /* A set metadata flag in the next buffer will signal
- * that the current buffer will be the last buffer
- * downloaded
- */
- if (le16_to_cpu(bh->section_count))
- if (le32_to_cpu(bh->section_entry[0].type) &
- ICE_METADATA_BUF)
- last = true;
- }
-
- bh = (struct ice_buf_hdr *)(bufs + i);
+ if (indicate_last)
+ last = ice_is_last_download_buffer(bh, i, count);
status = ice_aq_download_pkg(hw, bh, ICE_PKG_BUF_SIZE, last,
&offset, &info, NULL);
/* Save AQ status from download package */
if (status) {
- ice_debug(hw, ICE_DBG_PKG,
- "Pkg download failed: err %d off %d inf %d\n",
+ ice_debug(hw, ICE_DBG_PKG, "Pkg download failed: err %d off %d inf %d\n",
status, offset, info);
err = hw->adminq.sq_last_status;
state = ice_map_aq_err_to_ddp_state(err);
@@ -1273,14 +1352,174 @@ static enum ice_ddp_state ice_dwnld_cfg_bufs(struct ice_hw *hw,
break;
}
- if (!status) {
- status = ice_set_vlan_mode(hw);
- if (status)
- ice_debug(hw, ICE_DBG_PKG,
- "Failed to set VLAN mode: err %d\n", status);
+ return state;
+}
+
+/**
+ * ice_download_pkg_sig_seg - download a signature segment
+ * @hw: pointer to the hardware structure
+ * @seg: pointer to signature segment
+ */
+static enum ice_ddp_state
+ice_download_pkg_sig_seg(struct ice_hw *hw, struct ice_sign_seg *seg)
+{
+ return ice_dwnld_cfg_bufs_no_lock(hw, seg->buf_tbl.buf_array, 0,
+ le32_to_cpu(seg->buf_tbl.buf_count),
+ false);
+}
+
+/**
+ * ice_download_pkg_config_seg - download a config segment
+ * @hw: pointer to the hardware structure
+ * @pkg_hdr: pointer to package header
+ * @idx: segment index
+ * @start: starting buffer
+ * @count: buffer count
+ *
+ * Note: idx must reference a ICE segment
+ */
+static enum ice_ddp_state
+ice_download_pkg_config_seg(struct ice_hw *hw, struct ice_pkg_hdr *pkg_hdr,
+ u32 idx, u32 start, u32 count)
+{
+ struct ice_buf_table *bufs;
+ struct ice_seg *seg;
+ u32 buf_count;
+
+ seg = (struct ice_seg *)ice_get_pkg_seg_by_idx(pkg_hdr, idx);
+ if (!seg)
+ return ICE_DDP_PKG_ERR;
+
+ bufs = ice_find_buf_table(seg);
+ buf_count = le32_to_cpu(bufs->buf_count);
+
+ if (start >= buf_count || start + count > buf_count)
+ return ICE_DDP_PKG_ERR;
+
+ return ice_dwnld_cfg_bufs_no_lock(hw, bufs->buf_array, start, count,
+ true);
+}
+
+/**
+ * ice_dwnld_sign_and_cfg_segs - download a signing segment and config segment
+ * @hw: pointer to the hardware structure
+ * @pkg_hdr: pointer to package header
+ * @idx: segment index (must be a signature segment)
+ *
+ * Note: idx must reference a signature segment
+ */
+static enum ice_ddp_state
+ice_dwnld_sign_and_cfg_segs(struct ice_hw *hw, struct ice_pkg_hdr *pkg_hdr,
+ u32 idx)
+{
+ enum ice_ddp_state state;
+ struct ice_sign_seg *seg;
+ u32 conf_idx;
+ u32 start;
+ u32 count;
+
+ seg = (struct ice_sign_seg *)ice_get_pkg_seg_by_idx(pkg_hdr, idx);
+ if (!seg) {
+ state = ICE_DDP_PKG_ERR;
+ goto exit;
}
+ conf_idx = le32_to_cpu(seg->signed_seg_idx);
+ start = le32_to_cpu(seg->signed_buf_start);
+ count = le32_to_cpu(seg->signed_buf_count);
+
+ state = ice_download_pkg_sig_seg(hw, seg);
+ if (state)
+ goto exit;
+
+ state = ice_download_pkg_config_seg(hw, pkg_hdr, conf_idx, start,
+ count);
+
+exit:
+ return state;
+}
+
+/**
+ * ice_match_signing_seg - determine if a matching signing segment exists
+ * @pkg_hdr: pointer to package header
+ * @seg_id: segment id that is expected
+ * @sign_type: signing type
+ */
+static bool
+ice_match_signing_seg(struct ice_pkg_hdr *pkg_hdr, u32 seg_id, u32 sign_type)
+{
+ u32 i;
+
+ for (i = 0; i < le32_to_cpu(pkg_hdr->seg_count); i++) {
+ if (ice_is_signing_seg_type_at_idx(pkg_hdr, i, seg_id,
+ sign_type))
+ return true;
+ }
+
+ return false;
+}
+
+/**
+ * ice_post_dwnld_pkg_actions - perform post download package actions
+ * @hw: pointer to the hardware structure
+ */
+static enum ice_ddp_state
+ice_post_dwnld_pkg_actions(struct ice_hw *hw)
+{
+ int status;
+
+ status = ice_set_vlan_mode(hw);
+ if (status) {
+ ice_debug(hw, ICE_DBG_PKG, "Failed to set VLAN mode: err %d\n",
+ status);
+ return ICE_DDP_PKG_ERR;
+ }
+
+ return ICE_DDP_PKG_SUCCESS;
+}
+
+/**
+ * ice_download_pkg
+ * @hw: pointer to the hardware structure
+ * @pkg_hdr: pointer to package header
+ *
+ * Handles the download of a complete package.
+ */
+static enum ice_ddp_state
+ice_download_pkg(struct ice_hw *hw, struct ice_pkg_hdr *pkg_hdr)
+{
+ enum ice_aq_err aq_err = hw->adminq.sq_last_status;
+ enum ice_ddp_state state = ICE_DDP_PKG_ERR;
+ int status;
+ u32 i;
+
+ ice_debug(hw, ICE_DBG_INIT, "Segment ID %d\n", hw->pkg_seg_id);
+ ice_debug(hw, ICE_DBG_INIT, "Signature type %d\n", hw->pkg_sign_type);
+
+ status = ice_acquire_global_cfg_lock(hw, ICE_RES_WRITE);
+ if (status) {
+ if (status == -EALREADY)
+ state = ICE_DDP_PKG_ALREADY_LOADED;
+ else
+ state = ice_map_aq_err_to_ddp_state(aq_err);
+ return state;
+ }
+
+ for (i = 0; i < le32_to_cpu(pkg_hdr->seg_count); i++) {
+ if (!ice_is_signing_seg_type_at_idx(pkg_hdr, i, hw->pkg_seg_id,
+ hw->pkg_sign_type))
+ continue;
+
+ state = ice_dwnld_sign_and_cfg_segs(hw, pkg_hdr, i);
+ if (state)
+ break;
+ }
+
+ if (!state)
+ state = ice_post_dwnld_pkg_actions(hw);
+
ice_release_global_cfg_lock(hw);
+ ice_post_pkg_dwnld_vlan_mode_cfg(hw);
return state;
}
@@ -1305,42 +1544,6 @@ static int ice_aq_get_pkg_info_list(struct ice_hw *hw,
return ice_aq_send_cmd(hw, &desc, pkg_info, buf_size, cd);
}
-/**
- * ice_download_pkg
- * @hw: pointer to the hardware structure
- * @ice_seg: pointer to the segment of the package to be downloaded
- *
- * Handles the download of a complete package.
- */
-static enum ice_ddp_state ice_download_pkg(struct ice_hw *hw,
- struct ice_seg *ice_seg)
-{
- struct ice_buf_table *ice_buf_tbl;
- int status;
-
- ice_debug(hw, ICE_DBG_PKG, "Segment format version: %d.%d.%d.%d\n",
- ice_seg->hdr.seg_format_ver.major,
- ice_seg->hdr.seg_format_ver.minor,
- ice_seg->hdr.seg_format_ver.update,
- ice_seg->hdr.seg_format_ver.draft);
-
- ice_debug(hw, ICE_DBG_PKG, "Seg: type 0x%X, size %d, name %s\n",
- le32_to_cpu(ice_seg->hdr.seg_type),
- le32_to_cpu(ice_seg->hdr.seg_size), ice_seg->hdr.seg_id);
-
- ice_buf_tbl = ice_find_buf_table(ice_seg);
-
- ice_debug(hw, ICE_DBG_PKG, "Seg buf count: %d\n",
- le32_to_cpu(ice_buf_tbl->buf_count));
-
- status = ice_dwnld_cfg_bufs(hw, ice_buf_tbl->buf_array,
- le32_to_cpu(ice_buf_tbl->buf_count));
-
- ice_post_pkg_dwnld_vlan_mode_cfg(hw);
-
- return status;
-}
-
/**
* ice_aq_update_pkg
* @hw: pointer to the hardware structure
@@ -1497,6 +1700,73 @@ ice_find_seg_in_pkg(struct ice_hw *hw, u32 seg_type,
return NULL;
}
+/**
+ * ice_has_signing_seg - determine if package has a signing segment
+ * @hw: pointer to the hardware structure
+ * @pkg_hdr: pointer to the driver's package hdr
+ */
+static bool ice_has_signing_seg(struct ice_hw *hw, struct ice_pkg_hdr *pkg_hdr)
+{
+ struct ice_generic_seg_hdr *seg_hdr;
+
+ seg_hdr = (struct ice_generic_seg_hdr *)
+ ice_find_seg_in_pkg(hw, SEGMENT_TYPE_SIGNING, pkg_hdr);
+
+ return seg_hdr ? true : false;
+}
+
+/**
+ * ice_get_pkg_segment_id - get correct package segment id, based on device
+ * @mac_type: MAC type of the device
+ */
+static u32 ice_get_pkg_segment_id(enum ice_mac_type mac_type)
+{
+ u32 seg_id;
+
+ switch (mac_type) {
+ case ICE_MAC_E830:
+ seg_id = SEGMENT_TYPE_ICE_E830;
+ break;
+ case ICE_MAC_GENERIC:
+ default:
+ seg_id = SEGMENT_TYPE_ICE_E810;
+ break;
+ }
+
+ return seg_id;
+}
+
+/**
+ * ice_get_pkg_sign_type - get package segment sign type, based on device
+ * @mac_type: MAC type of the device
+ */
+static u32 ice_get_pkg_sign_type(enum ice_mac_type mac_type)
+{
+ u32 sign_type;
+
+ switch (mac_type) {
+ case ICE_MAC_E830:
+ sign_type = SEGMENT_SIGN_TYPE_RSA3K_SBB;
+ break;
+ case ICE_MAC_GENERIC:
+ default:
+ sign_type = SEGMENT_SIGN_TYPE_RSA2K;
+ break;
+ }
+
+ return sign_type;
+}
+
+/**
+ * ice_get_signing_req - get correct package requirements, based on device
+ * @hw: pointer to the hardware structure
+ */
+static void ice_get_signing_req(struct ice_hw *hw)
+{
+ hw->pkg_seg_id = ice_get_pkg_segment_id(hw->mac_type);
+ hw->pkg_sign_type = ice_get_pkg_sign_type(hw->mac_type);
+}
+
/**
* ice_init_pkg_info
* @hw: pointer to the hardware structure
@@ -1512,7 +1782,14 @@ static enum ice_ddp_state ice_init_pkg_info(struct ice_hw *hw,
if (!pkg_hdr)
return ICE_DDP_PKG_ERR;
- seg_hdr = ice_find_seg_in_pkg(hw, SEGMENT_TYPE_ICE, pkg_hdr);
+ hw->pkg_has_signing_seg = ice_has_signing_seg(hw, pkg_hdr);
+ ice_get_signing_req(hw);
+
+ ice_debug(hw, ICE_DBG_INIT, "Pkg using segment id: 0x%08X\n",
+ hw->pkg_seg_id);
+
+ seg_hdr = (struct ice_generic_seg_hdr *)
+ ice_find_seg_in_pkg(hw, hw->pkg_seg_id, pkg_hdr);
if (seg_hdr) {
struct ice_meta_sect *meta;
struct ice_pkg_enum state;
@@ -1626,7 +1903,7 @@ static enum ice_ddp_state ice_chk_pkg_compat(struct ice_hw *hw,
}
/* find ICE segment in given package */
- *seg = (struct ice_seg *)ice_find_seg_in_pkg(hw, SEGMENT_TYPE_ICE,
+ *seg = (struct ice_seg *)ice_find_seg_in_pkg(hw, hw->pkg_seg_id,
ospkg);
if (!*seg) {
ice_debug(hw, ICE_DBG_INIT, "no ice segment in package.\n");
@@ -1792,6 +2069,11 @@ enum ice_ddp_state ice_init_pkg(struct ice_hw *hw, u8 *buf, u32 len)
if (state)
return state;
+ /* must be a matching segment */
+ if (hw->pkg_has_signing_seg &&
+ !ice_match_signing_seg(pkg, hw->pkg_seg_id, hw->pkg_sign_type))
+ return ICE_DDP_PKG_ERR;
+
/* before downloading the package, check package version for
* compatibility with driver
*/
@@ -1801,7 +2083,7 @@ enum ice_ddp_state ice_init_pkg(struct ice_hw *hw, u8 *buf, u32 len)
/* initialize package hints and then download package */
ice_init_pkg_hints(hw, seg);
- state = ice_download_pkg(hw, seg);
+ state = ice_download_pkg(hw, pkg);
if (state == ICE_DDP_PKG_ALREADY_LOADED) {
ice_debug(hw, ICE_DBG_INIT,
"package previously loaded - no work.\n");
diff --git a/drivers/net/ethernet/intel/ice/ice_ddp.h b/drivers/net/ethernet/intel/ice/ice_ddp.h
index abb5f32f2ef4..ff66c2ffb1a2 100644
--- a/drivers/net/ethernet/intel/ice/ice_ddp.h
+++ b/drivers/net/ethernet/intel/ice/ice_ddp.h
@@ -98,10 +98,21 @@ struct ice_pkg_hdr {
__le32 seg_offset[];
};
+/* Package signing algorithm types */
+#define SEGMENT_SIGN_TYPE_INVALID 0x00000000
+#define SEGMENT_SIGN_TYPE_RSA2K 0x00000001
+#define SEGMENT_SIGN_TYPE_RSA3K 0x00000002
+#define SEGMENT_SIGN_TYPE_RSA3K_SBB 0x00000003 /* Secure Boot Block */
+#define SEGMENT_SIGN_TYPE_RSA3K_E825 0x00000005
+
/* generic segment */
struct ice_generic_seg_hdr {
-#define SEGMENT_TYPE_METADATA 0x00000001
-#define SEGMENT_TYPE_ICE 0x00000010
+#define SEGMENT_TYPE_INVALID 0x00000000
+#define SEGMENT_TYPE_METADATA 0x00000001
+#define SEGMENT_TYPE_ICE_E810 0x00000010
+#define SEGMENT_TYPE_SIGNING 0x00001001
+#define SEGMENT_TYPE_ICE_RUN_TIME_CFG 0x00000020
+#define SEGMENT_TYPE_ICE_E830 0x00000017
__le32 seg_type;
struct ice_pkg_ver seg_format_ver;
__le32 seg_size;
@@ -163,6 +174,18 @@ struct ice_global_metadata_seg {
#define ICE_MIN_S_SZ 1
#define ICE_MAX_S_SZ 4084
+struct ice_sign_seg {
+ struct ice_generic_seg_hdr hdr;
+ __le32 seg_id;
+ __le32 sign_type;
+ __le32 signed_seg_idx;
+ __le32 signed_buf_start;
+ __le32 signed_buf_count;
+#define ICE_SIGN_SEG_RESERVED_COUNT 44
+ u8 reserved[ICE_SIGN_SEG_RESERVED_COUNT];
+ struct ice_buf_table buf_tbl;
+};
+
/* section information */
struct ice_section_entry {
__le32 type;
diff --git a/drivers/net/ethernet/intel/ice/ice_type.h b/drivers/net/ethernet/intel/ice/ice_type.h
index f5d36c44abd2..a18ca0ff879f 100644
--- a/drivers/net/ethernet/intel/ice/ice_type.h
+++ b/drivers/net/ethernet/intel/ice/ice_type.h
@@ -920,7 +920,10 @@ struct ice_hw {
/* Active package version (currently active) */
struct ice_pkg_ver active_pkg_ver;
+ u32 pkg_seg_id;
+ u32 pkg_sign_type;
u32 active_track_id;
+ u8 pkg_has_signing_seg:1;
u8 active_pkg_name[ICE_PKG_NAME_SIZE];
u8 active_pkg_in_nvm;
--
2.41.0
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