freebsd-dev/sys/dev/ice/ice_vlan_mode.c
Eric Joyner 56429daea2
ice(4): Update to 1.34.2-k
- Adds FW logging support
  - Once enabled, this lets the firmware print event and error messages
    to the log, increasing the visibility into what the hardware is
    doing; this is useful for debugging
- General bug fixes
- Adds inital DCB support to the driver
  - Notably, this adds support for DCBX to the driver; now with the
    fw_lldp sysctl set to 1, the driver and adapter will adopt a DCBX
    configuration sent from a link partner
  - Adds statistcs sysctls for priority flow control frames
  - Adds new configuration sysctls for DCB-related features: (VLAN) user
    priority to TC mapping; ETS bandwidth allocation; priority flow
    control
- Remove unused SR-IOV files (until support gets added)

Signed-off-by: Eric Joyner <erj@FreeBSD.org>

Tested by:	jeffrey.e.pieper@intel.com
MFC after:	3 days
MFC with:	213e91399b, e438f0a975
Relnotes:	yes
Sponsored by:	Intel Corporation
Differential Revision:	https://reviews.freebsd.org/D34024
2022-03-04 10:51:41 -08:00

326 lines
9.7 KiB
C

/* SPDX-License-Identifier: BSD-3-Clause */
/* Copyright (c) 2021, 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.
*/
/*$FreeBSD$*/
#include "ice_common.h"
/**
* ice_pkg_get_supported_vlan_mode - chk if DDP supports Double VLAN mode (DVM)
* @hw: pointer to the HW struct
* @dvm: output variable to determine if DDP supports DVM(true) or SVM(false)
*/
static enum ice_status
ice_pkg_get_supported_vlan_mode(struct ice_hw *hw, bool *dvm)
{
u16 meta_init_size = sizeof(struct ice_meta_init_section);
struct ice_meta_init_section *sect;
struct ice_buf_build *bld;
enum ice_status status;
/* if anything fails, we assume there is no DVM support */
*dvm = false;
bld = ice_pkg_buf_alloc_single_section(hw,
ICE_SID_RXPARSER_METADATA_INIT,
meta_init_size, (void **)&sect);
if (!bld)
return ICE_ERR_NO_MEMORY;
/* only need to read a single section */
sect->count = CPU_TO_LE16(1);
sect->offset = CPU_TO_LE16(ICE_META_VLAN_MODE_ENTRY);
status = ice_aq_upload_section(hw,
(struct ice_buf_hdr *)ice_pkg_buf(bld),
ICE_PKG_BUF_SIZE, NULL);
if (!status) {
ice_declare_bitmap(entry, ICE_META_INIT_BITS);
u32 arr[ICE_META_INIT_DW_CNT];
u16 i;
/* convert to host bitmap format */
for (i = 0; i < ICE_META_INIT_DW_CNT; i++)
arr[i] = LE32_TO_CPU(sect->entry[0].bm[i]);
ice_bitmap_from_array32(entry, arr, (u16)ICE_META_INIT_BITS);
/* check if DVM is supported */
*dvm = ice_is_bit_set(entry, ICE_META_VLAN_MODE_BIT);
}
ice_pkg_buf_free(hw, bld);
return status;
}
/**
* ice_aq_get_vlan_mode - get the VLAN mode of the device
* @hw: pointer to the HW structure
* @get_params: structure FW fills in based on the current VLAN mode config
*
* Get VLAN Mode Parameters (0x020D)
*/
static enum ice_status
ice_aq_get_vlan_mode(struct ice_hw *hw,
struct ice_aqc_get_vlan_mode *get_params)
{
struct ice_aq_desc desc;
if (!get_params)
return ICE_ERR_PARAM;
ice_fill_dflt_direct_cmd_desc(&desc,
ice_aqc_opc_get_vlan_mode_parameters);
return ice_aq_send_cmd(hw, &desc, get_params, sizeof(*get_params),
NULL);
}
/**
* ice_aq_is_dvm_ena - query FW to check if double VLAN mode is enabled
* @hw: pointer to the HW structure
*
* Returns true if the hardware/firmware is configured in double VLAN mode,
* else return false signaling that the hardware/firmware is configured in
* single VLAN mode.
*
* Also, return false if this call fails for any reason (i.e. firmware doesn't
* support this AQ call).
*/
static bool ice_aq_is_dvm_ena(struct ice_hw *hw)
{
struct ice_aqc_get_vlan_mode get_params = { 0 };
enum ice_status status;
status = ice_aq_get_vlan_mode(hw, &get_params);
if (status) {
ice_debug(hw, ICE_DBG_AQ, "Failed to get VLAN mode, status %d\n",
status);
return false;
}
return (get_params.vlan_mode & ICE_AQ_VLAN_MODE_DVM_ENA);
}
/**
* ice_is_dvm_ena - check if double VLAN mode is enabled
* @hw: pointer to the HW structure
*
* The device is configured in single or double VLAN mode on initialization and
* this cannot be dynamically changed during runtime. Based on this there is no
* need to make an AQ call every time the driver needs to know the VLAN mode.
* Instead, use the cached VLAN mode.
*/
bool ice_is_dvm_ena(struct ice_hw *hw)
{
return hw->dvm_ena;
}
/**
* ice_cache_vlan_mode - cache VLAN mode after DDP is downloaded
* @hw: pointer to the HW structure
*
* This is only called after downloading the DDP and after the global
* configuration lock has been released because all ports on a device need to
* cache the VLAN mode.
*/
static void ice_cache_vlan_mode(struct ice_hw *hw)
{
hw->dvm_ena = ice_aq_is_dvm_ena(hw) ? true : false;
}
/**
* ice_pkg_supports_dvm - find out if DDP supports DVM
* @hw: pointer to the HW structure
*/
static bool ice_pkg_supports_dvm(struct ice_hw *hw)
{
enum ice_status status;
bool pkg_supports_dvm;
status = ice_pkg_get_supported_vlan_mode(hw, &pkg_supports_dvm);
if (status) {
ice_debug(hw, ICE_DBG_PKG, "Failed to get supported VLAN mode, status %d\n",
status);
return false;
}
return pkg_supports_dvm;
}
/**
* ice_fw_supports_dvm - find out if FW supports DVM
* @hw: pointer to the HW structure
*/
static bool ice_fw_supports_dvm(struct ice_hw *hw)
{
struct ice_aqc_get_vlan_mode get_vlan_mode = { 0 };
enum ice_status status;
/* If firmware returns success, then it supports DVM, else it only
* supports SVM
*/
status = ice_aq_get_vlan_mode(hw, &get_vlan_mode);
if (status) {
ice_debug(hw, ICE_DBG_NVM, "Failed to get VLAN mode, status %d\n",
status);
return false;
}
return true;
}
/**
* ice_is_dvm_supported - check if Double VLAN Mode is supported
* @hw: pointer to the hardware structure
*
* Returns true if Double VLAN Mode (DVM) is supported and false if only Single
* VLAN Mode (SVM) is supported. In order for DVM to be supported the DDP and
* firmware must support it, otherwise only SVM is supported. This function
* should only be called while the global config lock is held and after the
* package has been successfully downloaded.
*/
static bool ice_is_dvm_supported(struct ice_hw *hw)
{
if (!ice_pkg_supports_dvm(hw)) {
ice_debug(hw, ICE_DBG_PKG, "DDP doesn't support DVM\n");
return false;
}
if (!ice_fw_supports_dvm(hw)) {
ice_debug(hw, ICE_DBG_PKG, "FW doesn't support DVM\n");
return false;
}
return true;
}
/**
* ice_aq_set_vlan_mode - set the VLAN mode of the device
* @hw: pointer to the HW structure
* @set_params: requested VLAN mode configuration
*
* Set VLAN Mode Parameters (0x020C)
*/
static enum ice_status
ice_aq_set_vlan_mode(struct ice_hw *hw,
struct ice_aqc_set_vlan_mode *set_params)
{
u8 rdma_packet, mng_vlan_prot_id;
struct ice_aq_desc desc;
if (!set_params)
return ICE_ERR_PARAM;
if (set_params->l2tag_prio_tagging > ICE_AQ_VLAN_PRIO_TAG_MAX)
return ICE_ERR_PARAM;
rdma_packet = set_params->rdma_packet;
if (rdma_packet != ICE_AQ_SVM_VLAN_RDMA_PKT_FLAG_SETTING &&
rdma_packet != ICE_AQ_DVM_VLAN_RDMA_PKT_FLAG_SETTING)
return ICE_ERR_PARAM;
mng_vlan_prot_id = set_params->mng_vlan_prot_id;
if (mng_vlan_prot_id != ICE_AQ_VLAN_MNG_PROTOCOL_ID_OUTER &&
mng_vlan_prot_id != ICE_AQ_VLAN_MNG_PROTOCOL_ID_INNER)
return ICE_ERR_PARAM;
ice_fill_dflt_direct_cmd_desc(&desc,
ice_aqc_opc_set_vlan_mode_parameters);
desc.flags |= CPU_TO_LE16(ICE_AQ_FLAG_RD);
return ice_aq_send_cmd(hw, &desc, set_params, sizeof(*set_params),
NULL);
}
/**
* ice_set_svm - set single VLAN mode
* @hw: pointer to the HW structure
*/
static enum ice_status ice_set_svm(struct ice_hw *hw)
{
struct ice_aqc_set_vlan_mode *set_params;
enum ice_status status;
status = ice_aq_set_port_params(hw->port_info, 0, false, false, false, NULL);
if (status) {
ice_debug(hw, ICE_DBG_INIT, "Failed to set port parameters for single VLAN mode\n");
return status;
}
set_params = (struct ice_aqc_set_vlan_mode *)
ice_malloc(hw, sizeof(*set_params));
if (!set_params)
return ICE_ERR_NO_MEMORY;
/* default configuration for SVM configurations */
set_params->l2tag_prio_tagging = ICE_AQ_VLAN_PRIO_TAG_INNER_CTAG;
set_params->rdma_packet = ICE_AQ_SVM_VLAN_RDMA_PKT_FLAG_SETTING;
set_params->mng_vlan_prot_id = ICE_AQ_VLAN_MNG_PROTOCOL_ID_INNER;
status = ice_aq_set_vlan_mode(hw, set_params);
if (status)
ice_debug(hw, ICE_DBG_INIT, "Failed to configure port in single VLAN mode\n");
ice_free(hw, set_params);
return status;
}
/**
* ice_set_vlan_mode
* @hw: pointer to the HW structure
*/
enum ice_status ice_set_vlan_mode(struct ice_hw *hw)
{
if (!ice_is_dvm_supported(hw))
return ICE_SUCCESS;
return ice_set_svm(hw);
}
/**
* ice_post_pkg_dwnld_vlan_mode_cfg - configure VLAN mode after DDP download
* @hw: pointer to the HW structure
*
* This function is meant to configure any VLAN mode specific functionality
* after the global configuration lock has been released and the DDP has been
* downloaded.
*
* Since only one PF downloads the DDP and configures the VLAN mode there needs
* to be a way to configure the other PFs after the DDP has been downloaded and
* the global configuration lock has been released. All such code should go in
* this function.
*/
void ice_post_pkg_dwnld_vlan_mode_cfg(struct ice_hw *hw)
{
ice_cache_vlan_mode(hw);
}