From 6778948f9de86c3cfaf36725a7c87dcff9ba247f Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Mon, 11 Dec 2023 08:20:59 +0000
Subject: [PATCH] kernel_5.10 no rt

---
 kernel/drivers/net/ethernet/intel/ice/ice_nvm.c |  716 ++++++++++++++++++++++++++++++++++++++++++++++++++++++-----
 1 files changed, 651 insertions(+), 65 deletions(-)

diff --git a/kernel/drivers/net/ethernet/intel/ice/ice_nvm.c b/kernel/drivers/net/ethernet/intel/ice/ice_nvm.c
index 3274c54..5903a36 100644
--- a/kernel/drivers/net/ethernet/intel/ice/ice_nvm.c
+++ b/kernel/drivers/net/ethernet/intel/ice/ice_nvm.c
@@ -5,30 +5,34 @@
 
 /**
  * ice_aq_read_nvm
- * @hw: pointer to the hw struct
+ * @hw: pointer to the HW struct
  * @module_typeid: module pointer location in words from the NVM beginning
  * @offset: byte offset from the module beginning
  * @length: length of the section to be read (in bytes from the offset)
  * @data: command buffer (size [bytes] = length)
  * @last_command: tells if this is the last command in a series
+ * @read_shadow_ram: tell if this is a shadow RAM read
  * @cd: pointer to command details structure or NULL
  *
  * Read the NVM using the admin queue commands (0x0701)
  */
 static enum ice_status
 ice_aq_read_nvm(struct ice_hw *hw, u16 module_typeid, u32 offset, u16 length,
-		void *data, bool last_command, struct ice_sq_cd *cd)
+		void *data, bool last_command, bool read_shadow_ram,
+		struct ice_sq_cd *cd)
 {
 	struct ice_aq_desc desc;
 	struct ice_aqc_nvm *cmd;
 
 	cmd = &desc.params.nvm;
 
-	/* In offset the highest byte must be zeroed. */
-	if (offset & 0xFF000000)
+	if (offset > ICE_AQC_NVM_MAX_OFFSET)
 		return ICE_ERR_PARAM;
 
 	ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_nvm_read);
+
+	if (!read_shadow_ram && module_typeid == ICE_AQC_NVM_START_POINT)
+		cmd->cmd_flags |= ICE_AQC_NVM_FLASH_ONLY;
 
 	/* If this is the last command in a series, set the proper flag. */
 	if (last_command)
@@ -42,66 +46,135 @@
 }
 
 /**
- * ice_check_sr_access_params - verify params for Shadow RAM R/W operations.
- * @hw: pointer to the HW structure
- * @offset: offset in words from module start
- * @words: number of words to access
+ * ice_read_flat_nvm - Read portion of NVM by flat offset
+ * @hw: pointer to the HW struct
+ * @offset: offset from beginning of NVM
+ * @length: (in) number of bytes to read; (out) number of bytes actually read
+ * @data: buffer to return data in (sized to fit the specified length)
+ * @read_shadow_ram: if true, read from shadow RAM instead of NVM
+ *
+ * Reads a portion of the NVM, as a flat memory space. This function correctly
+ * breaks read requests across Shadow RAM sectors and ensures that no single
+ * read request exceeds the maximum 4Kb read for a single AdminQ command.
+ *
+ * Returns a status code on failure. Note that the data pointer may be
+ * partially updated if some reads succeed before a failure.
  */
-static enum ice_status
-ice_check_sr_access_params(struct ice_hw *hw, u32 offset, u16 words)
+enum ice_status
+ice_read_flat_nvm(struct ice_hw *hw, u32 offset, u32 *length, u8 *data,
+		  bool read_shadow_ram)
 {
-	if ((offset + words) > hw->nvm.sr_words) {
+	enum ice_status status;
+	u32 inlen = *length;
+	u32 bytes_read = 0;
+	bool last_cmd;
+
+	*length = 0;
+
+	/* Verify the length of the read if this is for the Shadow RAM */
+	if (read_shadow_ram && ((offset + inlen) > (hw->nvm.sr_words * 2u))) {
 		ice_debug(hw, ICE_DBG_NVM,
-			  "NVM error: offset beyond SR lmt.\n");
+			  "NVM error: requested offset is beyond Shadow RAM limit\n");
 		return ICE_ERR_PARAM;
 	}
 
-	if (words > ICE_SR_SECTOR_SIZE_IN_WORDS) {
-		/* We can access only up to 4KB (one sector), in one AQ write */
-		ice_debug(hw, ICE_DBG_NVM,
-			  "NVM error: tried to access %d words, limit is %d.\n",
-			  words, ICE_SR_SECTOR_SIZE_IN_WORDS);
-		return ICE_ERR_PARAM;
-	}
+	do {
+		u32 read_size, sector_offset;
 
-	if (((offset + (words - 1)) / ICE_SR_SECTOR_SIZE_IN_WORDS) !=
-	    (offset / ICE_SR_SECTOR_SIZE_IN_WORDS)) {
-		/* A single access cannot spread over two sectors */
-		ice_debug(hw, ICE_DBG_NVM,
-			  "NVM error: cannot spread over two sectors.\n");
-		return ICE_ERR_PARAM;
-	}
+		/* ice_aq_read_nvm cannot read more than 4Kb at a time.
+		 * Additionally, a read from the Shadow RAM may not cross over
+		 * a sector boundary. Conveniently, the sector size is also
+		 * 4Kb.
+		 */
+		sector_offset = offset % ICE_AQ_MAX_BUF_LEN;
+		read_size = min_t(u32, ICE_AQ_MAX_BUF_LEN - sector_offset,
+				  inlen - bytes_read);
 
-	return 0;
+		last_cmd = !(bytes_read + read_size < inlen);
+
+		status = ice_aq_read_nvm(hw, ICE_AQC_NVM_START_POINT,
+					 offset, read_size,
+					 data + bytes_read, last_cmd,
+					 read_shadow_ram, NULL);
+		if (status)
+			break;
+
+		bytes_read += read_size;
+		offset += read_size;
+	} while (!last_cmd);
+
+	*length = bytes_read;
+	return status;
 }
 
 /**
- * ice_read_sr_aq - Read Shadow RAM.
- * @hw: pointer to the HW structure
- * @offset: offset in words from module start
- * @words: number of words to read
- * @data: buffer for words reads from Shadow RAM
- * @last_command: tells the AdminQ that this is the last command
+ * ice_aq_update_nvm
+ * @hw: pointer to the HW struct
+ * @module_typeid: module pointer location in words from the NVM beginning
+ * @offset: byte offset from the module beginning
+ * @length: length of the section to be written (in bytes from the offset)
+ * @data: command buffer (size [bytes] = length)
+ * @last_command: tells if this is the last command in a series
+ * @command_flags: command parameters
+ * @cd: pointer to command details structure or NULL
  *
- * Reads 16-bit word buffers from the Shadow RAM using the admin command.
+ * Update the NVM using the admin queue commands (0x0703)
  */
-static enum ice_status
-ice_read_sr_aq(struct ice_hw *hw, u32 offset, u16 words, u16 *data,
-	       bool last_command)
+enum ice_status
+ice_aq_update_nvm(struct ice_hw *hw, u16 module_typeid, u32 offset,
+		  u16 length, void *data, bool last_command, u8 command_flags,
+		  struct ice_sq_cd *cd)
 {
-	enum ice_status status;
+	struct ice_aq_desc desc;
+	struct ice_aqc_nvm *cmd;
 
-	status = ice_check_sr_access_params(hw, offset, words);
+	cmd = &desc.params.nvm;
 
-	/* values in "offset" and "words" parameters are sized as words
-	 * (16 bits) but ice_aq_read_nvm expects these values in bytes.
-	 * So do this conversion while calling ice_aq_read_nvm.
-	 */
-	if (!status)
-		status = ice_aq_read_nvm(hw, 0, 2 * offset, 2 * words, data,
-					 last_command, NULL);
+	/* In offset the highest byte must be zeroed. */
+	if (offset & 0xFF000000)
+		return ICE_ERR_PARAM;
 
-	return status;
+	ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_nvm_write);
+
+	cmd->cmd_flags |= command_flags;
+
+	/* If this is the last command in a series, set the proper flag. */
+	if (last_command)
+		cmd->cmd_flags |= ICE_AQC_NVM_LAST_CMD;
+	cmd->module_typeid = cpu_to_le16(module_typeid);
+	cmd->offset_low = cpu_to_le16(offset & 0xFFFF);
+	cmd->offset_high = (offset >> 16) & 0xFF;
+	cmd->length = cpu_to_le16(length);
+
+	desc.flags |= cpu_to_le16(ICE_AQ_FLAG_RD);
+
+	return ice_aq_send_cmd(hw, &desc, data, length, cd);
+}
+
+/**
+ * ice_aq_erase_nvm
+ * @hw: pointer to the HW struct
+ * @module_typeid: module pointer location in words from the NVM beginning
+ * @cd: pointer to command details structure or NULL
+ *
+ * Erase the NVM sector using the admin queue commands (0x0702)
+ */
+enum ice_status
+ice_aq_erase_nvm(struct ice_hw *hw, u16 module_typeid, struct ice_sq_cd *cd)
+{
+	struct ice_aq_desc desc;
+	struct ice_aqc_nvm *cmd;
+
+	cmd = &desc.params.nvm;
+
+	ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_nvm_erase);
+
+	cmd->module_typeid = cpu_to_le16(module_typeid);
+	cmd->length = cpu_to_le16(ICE_AQC_NVM_ERASE_LEN);
+	cmd->offset_low = 0;
+	cmd->offset_high = 0;
+
+	return ice_aq_send_cmd(hw, &desc, NULL, 0, cd);
 }
 
 /**
@@ -110,18 +183,25 @@
  * @offset: offset of the Shadow RAM word to read (0x000000 - 0x001FFF)
  * @data: word read from the Shadow RAM
  *
- * Reads one 16 bit word from the Shadow RAM using the ice_read_sr_aq method.
+ * Reads one 16 bit word from the Shadow RAM using ice_read_flat_nvm.
  */
 static enum ice_status
 ice_read_sr_word_aq(struct ice_hw *hw, u16 offset, u16 *data)
 {
+	u32 bytes = sizeof(u16);
 	enum ice_status status;
+	__le16 data_local;
 
-	status = ice_read_sr_aq(hw, offset, 1, data, true);
-	if (!status)
-		*data = le16_to_cpu(*(__le16 *)data);
+	/* Note that ice_read_flat_nvm takes into account the 4Kb AdminQ and
+	 * Shadow RAM sector restrictions necessary when reading from the NVM.
+	 */
+	status = ice_read_flat_nvm(hw, offset * sizeof(u16), &bytes,
+				   (u8 *)&data_local, true);
+	if (status)
+		return status;
 
-	return status;
+	*data = le16_to_cpu(data_local);
+	return 0;
 }
 
 /**
@@ -131,7 +211,7 @@
  *
  * This function will request NVM ownership.
  */
-static enum ice_status
+enum ice_status
 ice_acquire_nvm(struct ice_hw *hw, enum ice_aq_res_access_type access)
 {
 	if (hw->nvm.blank_nvm_mode)
@@ -146,7 +226,7 @@
  *
  * This function will release NVM ownership.
  */
-static void ice_release_nvm(struct ice_hw *hw)
+void ice_release_nvm(struct ice_hw *hw)
 {
 	if (hw->nvm.blank_nvm_mode)
 		return;
@@ -162,8 +242,7 @@
  *
  * Reads one 16 bit word from the Shadow RAM using the ice_read_sr_word_aq.
  */
-static enum ice_status
-ice_read_sr_word(struct ice_hw *hw, u16 offset, u16 *data)
+enum ice_status ice_read_sr_word(struct ice_hw *hw, u16 offset, u16 *data)
 {
 	enum ice_status status;
 
@@ -177,8 +256,322 @@
 }
 
 /**
+ * ice_get_pfa_module_tlv - Reads sub module TLV from NVM PFA
+ * @hw: pointer to hardware structure
+ * @module_tlv: pointer to module TLV to return
+ * @module_tlv_len: pointer to module TLV length to return
+ * @module_type: module type requested
+ *
+ * Finds the requested sub module TLV type from the Preserved Field
+ * Area (PFA) and returns the TLV pointer and length. The caller can
+ * use these to read the variable length TLV value.
+ */
+enum ice_status
+ice_get_pfa_module_tlv(struct ice_hw *hw, u16 *module_tlv, u16 *module_tlv_len,
+		       u16 module_type)
+{
+	enum ice_status status;
+	u16 pfa_len, pfa_ptr;
+	u16 next_tlv;
+
+	status = ice_read_sr_word(hw, ICE_SR_PFA_PTR, &pfa_ptr);
+	if (status) {
+		ice_debug(hw, ICE_DBG_INIT, "Preserved Field Array pointer.\n");
+		return status;
+	}
+	status = ice_read_sr_word(hw, pfa_ptr, &pfa_len);
+	if (status) {
+		ice_debug(hw, ICE_DBG_INIT, "Failed to read PFA length.\n");
+		return status;
+	}
+	/* Starting with first TLV after PFA length, iterate through the list
+	 * of TLVs to find the requested one.
+	 */
+	next_tlv = pfa_ptr + 1;
+	while (next_tlv < pfa_ptr + pfa_len) {
+		u16 tlv_sub_module_type;
+		u16 tlv_len;
+
+		/* Read TLV type */
+		status = ice_read_sr_word(hw, next_tlv, &tlv_sub_module_type);
+		if (status) {
+			ice_debug(hw, ICE_DBG_INIT, "Failed to read TLV type.\n");
+			break;
+		}
+		/* Read TLV length */
+		status = ice_read_sr_word(hw, next_tlv + 1, &tlv_len);
+		if (status) {
+			ice_debug(hw, ICE_DBG_INIT, "Failed to read TLV length.\n");
+			break;
+		}
+		if (tlv_sub_module_type == module_type) {
+			if (tlv_len) {
+				*module_tlv = next_tlv;
+				*module_tlv_len = tlv_len;
+				return 0;
+			}
+			return ICE_ERR_INVAL_SIZE;
+		}
+		/* Check next TLV, i.e. current TLV pointer + length + 2 words
+		 * (for current TLV's type and length)
+		 */
+		next_tlv = next_tlv + tlv_len + 2;
+	}
+	/* Module does not exist */
+	return ICE_ERR_DOES_NOT_EXIST;
+}
+
+/**
+ * ice_read_pba_string - Reads part number string from NVM
+ * @hw: pointer to hardware structure
+ * @pba_num: stores the part number string from the NVM
+ * @pba_num_size: part number string buffer length
+ *
+ * Reads the part number string from the NVM.
+ */
+enum ice_status
+ice_read_pba_string(struct ice_hw *hw, u8 *pba_num, u32 pba_num_size)
+{
+	u16 pba_tlv, pba_tlv_len;
+	enum ice_status status;
+	u16 pba_word, pba_size;
+	u16 i;
+
+	status = ice_get_pfa_module_tlv(hw, &pba_tlv, &pba_tlv_len,
+					ICE_SR_PBA_BLOCK_PTR);
+	if (status) {
+		ice_debug(hw, ICE_DBG_INIT, "Failed to read PBA Block TLV.\n");
+		return status;
+	}
+
+	/* pba_size is the next word */
+	status = ice_read_sr_word(hw, (pba_tlv + 2), &pba_size);
+	if (status) {
+		ice_debug(hw, ICE_DBG_INIT, "Failed to read PBA Section size.\n");
+		return status;
+	}
+
+	if (pba_tlv_len < pba_size) {
+		ice_debug(hw, ICE_DBG_INIT, "Invalid PBA Block TLV size.\n");
+		return ICE_ERR_INVAL_SIZE;
+	}
+
+	/* Subtract one to get PBA word count (PBA Size word is included in
+	 * total size)
+	 */
+	pba_size--;
+	if (pba_num_size < (((u32)pba_size * 2) + 1)) {
+		ice_debug(hw, ICE_DBG_INIT, "Buffer too small for PBA data.\n");
+		return ICE_ERR_PARAM;
+	}
+
+	for (i = 0; i < pba_size; i++) {
+		status = ice_read_sr_word(hw, (pba_tlv + 2 + 1) + i, &pba_word);
+		if (status) {
+			ice_debug(hw, ICE_DBG_INIT, "Failed to read PBA Block word %d.\n", i);
+			return status;
+		}
+
+		pba_num[(i * 2)] = (pba_word >> 8) & 0xFF;
+		pba_num[(i * 2) + 1] = pba_word & 0xFF;
+	}
+	pba_num[(pba_size * 2)] = '\0';
+
+	return status;
+}
+
+/**
+ * ice_get_orom_ver_info - Read Option ROM version information
+ * @hw: pointer to the HW struct
+ *
+ * Read the Combo Image version data from the Boot Configuration TLV and fill
+ * in the option ROM version data.
+ */
+static enum ice_status ice_get_orom_ver_info(struct ice_hw *hw)
+{
+	u16 combo_hi, combo_lo, boot_cfg_tlv, boot_cfg_tlv_len;
+	struct ice_orom_info *orom = &hw->nvm.orom;
+	enum ice_status status;
+	u32 combo_ver;
+
+	status = ice_get_pfa_module_tlv(hw, &boot_cfg_tlv, &boot_cfg_tlv_len,
+					ICE_SR_BOOT_CFG_PTR);
+	if (status) {
+		ice_debug(hw, ICE_DBG_INIT,
+			  "Failed to read Boot Configuration Block TLV.\n");
+		return status;
+	}
+
+	/* Boot Configuration Block must have length at least 2 words
+	 * (Combo Image Version High and Combo Image Version Low)
+	 */
+	if (boot_cfg_tlv_len < 2) {
+		ice_debug(hw, ICE_DBG_INIT,
+			  "Invalid Boot Configuration Block TLV size.\n");
+		return ICE_ERR_INVAL_SIZE;
+	}
+
+	status = ice_read_sr_word(hw, (boot_cfg_tlv + ICE_NVM_OROM_VER_OFF),
+				  &combo_hi);
+	if (status) {
+		ice_debug(hw, ICE_DBG_INIT, "Failed to read OROM_VER hi.\n");
+		return status;
+	}
+
+	status = ice_read_sr_word(hw, (boot_cfg_tlv + ICE_NVM_OROM_VER_OFF + 1),
+				  &combo_lo);
+	if (status) {
+		ice_debug(hw, ICE_DBG_INIT, "Failed to read OROM_VER lo.\n");
+		return status;
+	}
+
+	combo_ver = ((u32)combo_hi << 16) | combo_lo;
+
+	orom->major = (u8)((combo_ver & ICE_OROM_VER_MASK) >>
+			   ICE_OROM_VER_SHIFT);
+	orom->patch = (u8)(combo_ver & ICE_OROM_VER_PATCH_MASK);
+	orom->build = (u16)((combo_ver & ICE_OROM_VER_BUILD_MASK) >>
+			    ICE_OROM_VER_BUILD_SHIFT);
+
+	return 0;
+}
+
+/**
+ * ice_get_netlist_ver_info
+ * @hw: pointer to the HW struct
+ *
+ * Get the netlist version information
+ */
+static enum ice_status ice_get_netlist_ver_info(struct ice_hw *hw)
+{
+	struct ice_netlist_ver_info *ver = &hw->netlist_ver;
+	enum ice_status ret;
+	u32 id_blk_start;
+	__le16 raw_data;
+	u16 data, i;
+	u16 *buff;
+
+	ret = ice_acquire_nvm(hw, ICE_RES_READ);
+	if (ret)
+		return ret;
+	buff = kcalloc(ICE_AQC_NVM_NETLIST_ID_BLK_LEN, sizeof(*buff),
+		       GFP_KERNEL);
+	if (!buff) {
+		ret = ICE_ERR_NO_MEMORY;
+		goto exit_no_mem;
+	}
+
+	/* read module length */
+	ret = ice_aq_read_nvm(hw, ICE_AQC_NVM_LINK_TOPO_NETLIST_MOD_ID,
+			      ICE_AQC_NVM_LINK_TOPO_NETLIST_LEN_OFFSET * 2,
+			      ICE_AQC_NVM_LINK_TOPO_NETLIST_LEN, &raw_data,
+			      false, false, NULL);
+	if (ret)
+		goto exit_error;
+
+	data = le16_to_cpu(raw_data);
+	/* exit if length is = 0 */
+	if (!data)
+		goto exit_error;
+
+	/* read node count */
+	ret = ice_aq_read_nvm(hw, ICE_AQC_NVM_LINK_TOPO_NETLIST_MOD_ID,
+			      ICE_AQC_NVM_NETLIST_NODE_COUNT_OFFSET * 2,
+			      ICE_AQC_NVM_NETLIST_NODE_COUNT_LEN, &raw_data,
+			      false, false, NULL);
+	if (ret)
+		goto exit_error;
+	data = le16_to_cpu(raw_data) & ICE_AQC_NVM_NETLIST_NODE_COUNT_M;
+
+	/* netlist ID block starts from offset 4 + node count * 2 */
+	id_blk_start = ICE_AQC_NVM_NETLIST_ID_BLK_START_OFFSET + data * 2;
+
+	/* read the entire netlist ID block */
+	ret = ice_aq_read_nvm(hw, ICE_AQC_NVM_LINK_TOPO_NETLIST_MOD_ID,
+			      id_blk_start * 2,
+			      ICE_AQC_NVM_NETLIST_ID_BLK_LEN * 2, buff, false,
+			      false, NULL);
+	if (ret)
+		goto exit_error;
+
+	for (i = 0; i < ICE_AQC_NVM_NETLIST_ID_BLK_LEN; i++)
+		buff[i] = le16_to_cpu(((__force __le16 *)buff)[i]);
+
+	ver->major = (buff[ICE_AQC_NVM_NETLIST_ID_BLK_MAJOR_VER_HIGH] << 16) |
+		buff[ICE_AQC_NVM_NETLIST_ID_BLK_MAJOR_VER_LOW];
+	ver->minor = (buff[ICE_AQC_NVM_NETLIST_ID_BLK_MINOR_VER_HIGH] << 16) |
+		buff[ICE_AQC_NVM_NETLIST_ID_BLK_MINOR_VER_LOW];
+	ver->type = (buff[ICE_AQC_NVM_NETLIST_ID_BLK_TYPE_HIGH] << 16) |
+		buff[ICE_AQC_NVM_NETLIST_ID_BLK_TYPE_LOW];
+	ver->rev = (buff[ICE_AQC_NVM_NETLIST_ID_BLK_REV_HIGH] << 16) |
+		buff[ICE_AQC_NVM_NETLIST_ID_BLK_REV_LOW];
+	ver->cust_ver = buff[ICE_AQC_NVM_NETLIST_ID_BLK_CUST_VER];
+	/* Read the left most 4 bytes of SHA */
+	ver->hash = buff[ICE_AQC_NVM_NETLIST_ID_BLK_SHA_HASH + 15] << 16 |
+		buff[ICE_AQC_NVM_NETLIST_ID_BLK_SHA_HASH + 14];
+
+exit_error:
+	kfree(buff);
+exit_no_mem:
+	ice_release_nvm(hw);
+	return ret;
+}
+
+/**
+ * ice_discover_flash_size - Discover the available flash size.
+ * @hw: pointer to the HW struct
+ *
+ * The device flash could be up to 16MB in size. However, it is possible that
+ * the actual size is smaller. Use bisection to determine the accessible size
+ * of flash memory.
+ */
+static enum ice_status ice_discover_flash_size(struct ice_hw *hw)
+{
+	u32 min_size = 0, max_size = ICE_AQC_NVM_MAX_OFFSET + 1;
+	enum ice_status status;
+
+	status = ice_acquire_nvm(hw, ICE_RES_READ);
+	if (status)
+		return status;
+
+	while ((max_size - min_size) > 1) {
+		u32 offset = (max_size + min_size) / 2;
+		u32 len = 1;
+		u8 data;
+
+		status = ice_read_flat_nvm(hw, offset, &len, &data, false);
+		if (status == ICE_ERR_AQ_ERROR &&
+		    hw->adminq.sq_last_status == ICE_AQ_RC_EINVAL) {
+			ice_debug(hw, ICE_DBG_NVM,
+				  "%s: New upper bound of %u bytes\n",
+				  __func__, offset);
+			status = 0;
+			max_size = offset;
+		} else if (!status) {
+			ice_debug(hw, ICE_DBG_NVM,
+				  "%s: New lower bound of %u bytes\n",
+				  __func__, offset);
+			min_size = offset;
+		} else {
+			/* an unexpected error occurred */
+			goto err_read_flat_nvm;
+		}
+	}
+
+	ice_debug(hw, ICE_DBG_NVM,
+		  "Predicted flash size is %u bytes\n", max_size);
+
+	hw->nvm.flash_size = max_size;
+
+err_read_flat_nvm:
+	ice_release_nvm(hw);
+
+	return status;
+}
+
+/**
  * ice_init_nvm - initializes NVM setting
- * @hw: pointer to the hw struct
+ * @hw: pointer to the HW struct
  *
  * This function reads and populates NVM settings such as Shadow RAM size,
  * max_timeout, and blank_nvm_mode
@@ -186,12 +579,12 @@
 enum ice_status ice_init_nvm(struct ice_hw *hw)
 {
 	struct ice_nvm_info *nvm = &hw->nvm;
-	u16 eetrack_lo, eetrack_hi;
-	enum ice_status status = 0;
+	u16 eetrack_lo, eetrack_hi, ver;
+	enum ice_status status;
 	u32 fla, gens_stat;
 	u8 sr_size;
 
-	/* The SR size is stored regardless of the nvm programming mode
+	/* The SR size is stored regardless of the NVM programming mode
 	 * as the blank mode may be used in the factory line.
 	 */
 	gens_stat = rd32(hw, GLNVM_GENS);
@@ -204,20 +597,22 @@
 	fla = rd32(hw, GLNVM_FLA);
 	if (fla & GLNVM_FLA_LOCKED_M) { /* Normal programming mode */
 		nvm->blank_nvm_mode = false;
-	} else { /* Blank programming mode */
+	} else {
+		/* Blank programming mode */
 		nvm->blank_nvm_mode = true;
-		status = ICE_ERR_NVM_BLANK_MODE;
 		ice_debug(hw, ICE_DBG_NVM,
 			  "NVM init error: unsupported blank mode.\n");
-		return status;
+		return ICE_ERR_NVM_BLANK_MODE;
 	}
 
-	status = ice_read_sr_word(hw, ICE_SR_NVM_DEV_STARTER_VER, &hw->nvm.ver);
+	status = ice_read_sr_word(hw, ICE_SR_NVM_DEV_STARTER_VER, &ver);
 	if (status) {
 		ice_debug(hw, ICE_DBG_INIT,
 			  "Failed to read DEV starter version.\n");
 		return status;
 	}
+	nvm->major_ver = (ver & ICE_NVM_VER_HI_MASK) >> ICE_NVM_VER_HI_SHIFT;
+	nvm->minor_ver = (ver & ICE_NVM_VER_LO_MASK) >> ICE_NVM_VER_LO_SHIFT;
 
 	status = ice_read_sr_word(hw, ICE_SR_NVM_EETRACK_LO, &eetrack_lo);
 	if (status) {
@@ -230,7 +625,198 @@
 		return status;
 	}
 
-	hw->nvm.eetrack = (eetrack_hi << 16) | eetrack_lo;
+	nvm->eetrack = (eetrack_hi << 16) | eetrack_lo;
 
+	status = ice_discover_flash_size(hw);
+	if (status) {
+		ice_debug(hw, ICE_DBG_NVM,
+			  "NVM init error: failed to discover flash size.\n");
+		return status;
+	}
+
+	switch (hw->device_id) {
+	/* the following devices do not have boot_cfg_tlv yet */
+	case ICE_DEV_ID_E823C_BACKPLANE:
+	case ICE_DEV_ID_E823C_QSFP:
+	case ICE_DEV_ID_E823C_SFP:
+	case ICE_DEV_ID_E823C_10G_BASE_T:
+	case ICE_DEV_ID_E823C_SGMII:
+	case ICE_DEV_ID_E822C_BACKPLANE:
+	case ICE_DEV_ID_E822C_QSFP:
+	case ICE_DEV_ID_E822C_10G_BASE_T:
+	case ICE_DEV_ID_E822C_SGMII:
+	case ICE_DEV_ID_E822C_SFP:
+	case ICE_DEV_ID_E822L_BACKPLANE:
+	case ICE_DEV_ID_E822L_SFP:
+	case ICE_DEV_ID_E822L_10G_BASE_T:
+	case ICE_DEV_ID_E822L_SGMII:
+	case ICE_DEV_ID_E823L_BACKPLANE:
+	case ICE_DEV_ID_E823L_SFP:
+	case ICE_DEV_ID_E823L_10G_BASE_T:
+	case ICE_DEV_ID_E823L_1GBE:
+	case ICE_DEV_ID_E823L_QSFP:
+		return status;
+	default:
+		break;
+	}
+
+	status = ice_get_orom_ver_info(hw);
+	if (status) {
+		ice_debug(hw, ICE_DBG_INIT, "Failed to read Option ROM info.\n");
+		return status;
+	}
+
+	/* read the netlist version information */
+	status = ice_get_netlist_ver_info(hw);
+	if (status)
+		ice_debug(hw, ICE_DBG_INIT, "Failed to read netlist info.\n");
+
+	return 0;
+}
+
+/**
+ * ice_nvm_validate_checksum
+ * @hw: pointer to the HW struct
+ *
+ * Verify NVM PFA checksum validity (0x0706)
+ */
+enum ice_status ice_nvm_validate_checksum(struct ice_hw *hw)
+{
+	struct ice_aqc_nvm_checksum *cmd;
+	struct ice_aq_desc desc;
+	enum ice_status status;
+
+	status = ice_acquire_nvm(hw, ICE_RES_READ);
+	if (status)
+		return status;
+
+	cmd = &desc.params.nvm_checksum;
+
+	ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_nvm_checksum);
+	cmd->flags = ICE_AQC_NVM_CHECKSUM_VERIFY;
+
+	status = ice_aq_send_cmd(hw, &desc, NULL, 0, NULL);
+	ice_release_nvm(hw);
+
+	if (!status)
+		if (le16_to_cpu(cmd->checksum) != ICE_AQC_NVM_CHECKSUM_CORRECT)
+			status = ICE_ERR_NVM_CHECKSUM;
+
+	return status;
+}
+
+/**
+ * ice_nvm_write_activate
+ * @hw: pointer to the HW struct
+ * @cmd_flags: NVM activate admin command bits (banks to be validated)
+ *
+ * Update the control word with the required banks' validity bits
+ * and dumps the Shadow RAM to flash (0x0707)
+ */
+enum ice_status ice_nvm_write_activate(struct ice_hw *hw, u8 cmd_flags)
+{
+	struct ice_aqc_nvm *cmd;
+	struct ice_aq_desc desc;
+
+	cmd = &desc.params.nvm;
+	ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_nvm_write_activate);
+
+	cmd->cmd_flags = cmd_flags;
+
+	return ice_aq_send_cmd(hw, &desc, NULL, 0, NULL);
+}
+
+/**
+ * ice_aq_nvm_update_empr
+ * @hw: pointer to the HW struct
+ *
+ * Update empr (0x0709). This command allows SW to
+ * request an EMPR to activate new FW.
+ */
+enum ice_status ice_aq_nvm_update_empr(struct ice_hw *hw)
+{
+	struct ice_aq_desc desc;
+
+	ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_nvm_update_empr);
+
+	return ice_aq_send_cmd(hw, &desc, NULL, 0, NULL);
+}
+
+/* ice_nvm_set_pkg_data
+ * @hw: pointer to the HW struct
+ * @del_pkg_data_flag: If is set then the current pkg_data store by FW
+ *		       is deleted.
+ *		       If bit is set to 1, then buffer should be size 0.
+ * @data: pointer to buffer
+ * @length: length of the buffer
+ * @cd: pointer to command details structure or NULL
+ *
+ * Set package data (0x070A). This command is equivalent to the reception
+ * of a PLDM FW Update GetPackageData cmd. This command should be sent
+ * as part of the NVM update as the first cmd in the flow.
+ */
+
+enum ice_status
+ice_nvm_set_pkg_data(struct ice_hw *hw, bool del_pkg_data_flag, u8 *data,
+		     u16 length, struct ice_sq_cd *cd)
+{
+	struct ice_aqc_nvm_pkg_data *cmd;
+	struct ice_aq_desc desc;
+
+	if (length != 0 && !data)
+		return ICE_ERR_PARAM;
+
+	cmd = &desc.params.pkg_data;
+
+	ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_nvm_pkg_data);
+	desc.flags |= cpu_to_le16(ICE_AQ_FLAG_RD);
+
+	if (del_pkg_data_flag)
+		cmd->cmd_flags |= ICE_AQC_NVM_PKG_DELETE;
+
+	return ice_aq_send_cmd(hw, &desc, data, length, cd);
+}
+
+/* ice_nvm_pass_component_tbl
+ * @hw: pointer to the HW struct
+ * @data: pointer to buffer
+ * @length: length of the buffer
+ * @transfer_flag: parameter for determining stage of the update
+ * @comp_response: a pointer to the response from the 0x070B AQC.
+ * @comp_response_code: a pointer to the response code from the 0x070B AQC.
+ * @cd: pointer to command details structure or NULL
+ *
+ * Pass component table (0x070B). This command is equivalent to the reception
+ * of a PLDM FW Update PassComponentTable cmd. This command should be sent once
+ * per component. It can be only sent after Set Package Data cmd and before
+ * actual update. FW will assume these commands are going to be sent until
+ * the TransferFlag is set to End or StartAndEnd.
+ */
+
+enum ice_status
+ice_nvm_pass_component_tbl(struct ice_hw *hw, u8 *data, u16 length,
+			   u8 transfer_flag, u8 *comp_response,
+			   u8 *comp_response_code, struct ice_sq_cd *cd)
+{
+	struct ice_aqc_nvm_pass_comp_tbl *cmd;
+	struct ice_aq_desc desc;
+	enum ice_status status;
+
+	if (!data || !comp_response || !comp_response_code)
+		return ICE_ERR_PARAM;
+
+	cmd = &desc.params.pass_comp_tbl;
+
+	ice_fill_dflt_direct_cmd_desc(&desc,
+				      ice_aqc_opc_nvm_pass_component_tbl);
+	desc.flags |= cpu_to_le16(ICE_AQ_FLAG_RD);
+
+	cmd->transfer_flag = transfer_flag;
+	status = ice_aq_send_cmd(hw, &desc, data, length, cd);
+
+	if (!status) {
+		*comp_response = cmd->component_response;
+		*comp_response_code = cmd->component_response_code;
+	}
 	return status;
 }

--
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