/* SPDX-License-Identifier: BSD-3-Clause
- * Copyright(c) 2001-2019
+ * Copyright(c) 2001-2020 Intel Corporation
*/
#include "ice_common.h"
*
* Read the NVM using the admin queue commands (0x0701)
*/
-static enum ice_status
+enum ice_status
ice_aq_read_nvm(struct ice_hw *hw, u16 module_typeid, u32 offset, u16 length,
void *data, bool last_command, bool read_shadow_ram,
struct ice_sq_cd *cd)
*
* 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.
+ * 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.
/* 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: requested data is beyond Shadow RAM limit\n");
+ ice_debug(hw, ICE_DBG_NVM, "NVM error: requested data is beyond Shadow RAM limit\n");
return ICE_ERR_PARAM;
}
do {
u32 read_size, sector_offset;
- /* ice_aq_read_nvm cannot read more than 4Kb at a time.
+ /* 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.
+ * 4KB.
*/
sector_offset = offset % ICE_AQ_MAX_BUF_LEN;
read_size = MIN_T(u32, ICE_AQ_MAX_BUF_LEN - sector_offset,
* boundary
*/
status = ice_read_flat_nvm(hw, offset * sizeof(u16), &bytes,
- (u8 *)&data_local, true);
+ (_FORCE_ u8 *)&data_local, true);
if (status)
return status;
ice_debug(hw, ICE_DBG_TRACE, "%s\n", __func__);
- /* ice_read_flat_nvm takes into account the 4Kb AdminQ and Shadow RAM
+ /* 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 * 2, &bytes, (u8 *)data, true);
*
* 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)
{
ice_debug(hw, ICE_DBG_TRACE, "%s\n", __func__);
*
* This function will release NVM ownership.
*/
-static void ice_release_nvm(struct ice_hw *hw)
+void ice_release_nvm(struct ice_hw *hw)
{
ice_debug(hw, ICE_DBG_TRACE, "%s\n", __func__);
return status;
}
+/**
+ * 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_SUCCESS) {
+ 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_SUCCESS) {
+ 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_SUCCESS) {
+ 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_SUCCESS) {
+ 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 ICE_SUCCESS;
+ }
+ 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_SUCCESS) {
+ 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_SUCCESS) {
+ 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_SUCCESS) {
+ 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
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");
+ ice_debug(hw, ICE_DBG_INIT, "Failed to read Boot Configuration Block TLV.\n");
return status;
}
* (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");
+ ice_debug(hw, ICE_DBG_INIT, "Invalid Boot Configuration Block TLV size.\n");
return ICE_ERR_INVAL_SIZE;
}
return ICE_SUCCESS;
}
+/**
+ * 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;
+
+ ice_debug(hw, ICE_DBG_TRACE, "%s\n", __func__);
+
+ 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 = ICE_SUCCESS;
+ 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
} else {
/* Blank programming mode */
nvm->blank_nvm_mode = true;
- ice_debug(hw, ICE_DBG_NVM,
- "NVM init error: unsupported blank mode.\n");
+ ice_debug(hw, ICE_DBG_NVM, "NVM init error: unsupported blank mode.\n");
return ICE_ERR_NVM_BLANK_MODE;
}
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_E822C_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;
{
/* The provided data_size must be at least as large as our NVM
* features structure. A larger size should not be treated as an
- * error, to allow future extensions to to the features structure to
+ * error, to allow future extensions to the features structure to
* work on older drivers.
*/
if (cmd->data_size < sizeof(struct ice_nvm_features))
break;
}
- ice_debug(hw, ICE_DBG_NVM,
- "NVM access: writing register %08x with value %08x\n",
+ ice_debug(hw, ICE_DBG_NVM, "NVM access: writing register %08x with value %08x\n",
cmd->offset, data->regval);
/* Write the data field to the specified register */
git.droids-corp.org / dpdk.git / blobdiff