-/*******************************************************************************
-
-Copyright (c) 2013 - 2015, Intel Corporation
-All rights reserved.
-
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions are met:
-
- 1. Redistributions of source code must retain the above copyright notice,
- this list of conditions and the following disclaimer.
-
- 2. Redistributions in binary form must reproduce the above copyright
- notice, this list of conditions and the following disclaimer in the
- documentation and/or other materials provided with the distribution.
-
- 3. Neither the name of the Intel Corporation nor the names of its
- contributors may be used to endorse or promote products derived from
- this software without specific prior written permission.
-
-THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
-AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
-IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
-ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
-LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
-CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
-SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
-CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
-ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
-POSSIBILITY OF SUCH DAMAGE.
-
-***************************************************************************/
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2001-2018
+ */
#include "i40e_adminq.h"
#include "i40e_prototype.h"
dcbcfg->numapps = length / sizeof(*app);
if (!dcbcfg->numapps)
return;
+ if (dcbcfg->numapps > I40E_DCBX_MAX_APPS)
+ dcbcfg->numapps = I40E_DCBX_MAX_APPS;
for (i = 0; i < dcbcfg->numapps; i++) {
u8 up, selector;
}
+/**
+ * _i40e_read_lldp_cfg - generic read of LLDP Configuration data from NVM
+ * @hw: pointer to the HW structure
+ * @lldp_cfg: pointer to hold lldp configuration variables
+ * @module: address of the module pointer
+ * @word_offset: offset of LLDP configuration
+ *
+ * Reads the LLDP configuration data from NVM using passed addresses
+ **/
+static enum i40e_status_code _i40e_read_lldp_cfg(struct i40e_hw *hw,
+ struct i40e_lldp_variables *lldp_cfg,
+ u8 module, u32 word_offset)
+{
+ u32 address, offset = (2 * word_offset);
+ enum i40e_status_code ret;
+ __le16 raw_mem;
+ u16 mem;
+
+ ret = i40e_acquire_nvm(hw, I40E_RESOURCE_READ);
+ if (ret != I40E_SUCCESS)
+ return ret;
+
+ ret = i40e_aq_read_nvm(hw, 0x0, module * 2, sizeof(raw_mem), &raw_mem,
+ true, NULL);
+ i40e_release_nvm(hw);
+ if (ret != I40E_SUCCESS)
+ return ret;
+
+ mem = LE16_TO_CPU(raw_mem);
+ /* Check if this pointer needs to be read in word size or 4K sector
+ * units.
+ */
+ if (mem & I40E_PTR_TYPE)
+ address = (0x7FFF & mem) * 4096;
+ else
+ address = (0x7FFF & mem) * 2;
+
+ ret = i40e_acquire_nvm(hw, I40E_RESOURCE_READ);
+ if (ret != I40E_SUCCESS)
+ goto err_lldp_cfg;
+
+ ret = i40e_aq_read_nvm(hw, module, offset, sizeof(raw_mem), &raw_mem,
+ true, NULL);
+ i40e_release_nvm(hw);
+ if (ret != I40E_SUCCESS)
+ return ret;
+
+ mem = LE16_TO_CPU(raw_mem);
+ offset = mem + word_offset;
+ offset *= 2;
+
+ ret = i40e_acquire_nvm(hw, I40E_RESOURCE_READ);
+ if (ret != I40E_SUCCESS)
+ goto err_lldp_cfg;
+
+ ret = i40e_aq_read_nvm(hw, 0, address + offset,
+ sizeof(struct i40e_lldp_variables), lldp_cfg,
+ true, NULL);
+ i40e_release_nvm(hw);
+
+err_lldp_cfg:
+ return ret;
+}
+
/**
* i40e_read_lldp_cfg - read LLDP Configuration data from NVM
* @hw: pointer to the HW structure
struct i40e_lldp_variables *lldp_cfg)
{
enum i40e_status_code ret = I40E_SUCCESS;
- u32 offset = (2 * I40E_NVM_LLDP_CFG_PTR);
+ u32 mem;
if (!lldp_cfg)
return I40E_ERR_PARAM;
ret = i40e_acquire_nvm(hw, I40E_RESOURCE_READ);
if (ret != I40E_SUCCESS)
- goto err_lldp_cfg;
+ return ret;
- ret = i40e_aq_read_nvm(hw, I40E_SR_EMP_MODULE_PTR, offset,
- sizeof(struct i40e_lldp_variables),
- (u8 *)lldp_cfg,
- true, NULL);
+ ret = i40e_aq_read_nvm(hw, I40E_SR_NVM_CONTROL_WORD, 0, sizeof(mem),
+ &mem, true, NULL);
i40e_release_nvm(hw);
+ if (ret != I40E_SUCCESS)
+ return ret;
+
+ /* Read a bit that holds information whether we are running flat or
+ * structured NVM image. Flat image has LLDP configuration in shadow
+ * ram, so there is a need to pass different addresses for both cases.
+ */
+ if (mem & I40E_SR_NVM_MAP_STRUCTURE_TYPE) {
+ /* Flat NVM case */
+ ret = _i40e_read_lldp_cfg(hw, lldp_cfg, I40E_SR_EMP_MODULE_PTR,
+ I40E_SR_LLDP_CFG_PTR);
+ } else {
+ /* Good old structured NVM image */
+ ret = _i40e_read_lldp_cfg(hw, lldp_cfg, I40E_EMP_MODULE_PTR,
+ I40E_NVM_LLDP_CFG_PTR);
+ }
-err_lldp_cfg:
return ret;
}
Code Review / deb_dpdk.git / blobdiff