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linux_dsm_epyc7002/drivers/net/ethernet/qlogic/qed/qed_dcbx.c
Sudarsana Reddy Kalluru cac6f69154 qed: Add support for Unified Fabric Port. 
This patch adds driver changes for supporting the Unified Fabric Port
(UFP). This is a new paritioning mode wherein MFW provides the set of
parameters to be used by the device such as traffic class, outer-vlan
tag value, priority type etc. Drivers receives this info via notifications
from mfw and configures the hardware accordingly.

Signed-off-by: Sudarsana Reddy Kalluru <Sudarsana.Kalluru@cavium.com>
Signed-off-by: Ariel Elior <ariel.elior@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-07 23:46:10 -04:00

2419 lines
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/* QLogic qed NIC Driver
* Copyright (c) 2015-2017 QLogic Corporation
*
* This software is available to you under a choice of one of two
* licenses. You may choose to be licensed under the terms of the GNU
* General Public License (GPL) Version 2, available from the file
* COPYING in the main directory of this source tree, or the
* OpenIB.org BSD license below:
*
* Redistribution and use in source and binary forms, with or
* without modification, are permitted provided that the following
* conditions are met:
*
* - Redistributions of source code must retain the above
* copyright notice, this list of conditions and the following
* disclaimer.
*
* - 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.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include <linux/types.h>
#include <asm/byteorder.h>
#include <linux/bitops.h>
#include <linux/dcbnl.h>
#include <linux/errno.h>
#include <linux/kernel.h>
#include <linux/slab.h>
#include <linux/string.h>
#include "qed.h"
#include "qed_cxt.h"
#include "qed_dcbx.h"
#include "qed_hsi.h"
#include "qed_sp.h"
#include "qed_sriov.h"
#include "qed_rdma.h"
#ifdef CONFIG_DCB
#include <linux/qed/qed_eth_if.h>
#endif
#define QED_DCBX_MAX_MIB_READ_TRY (100)
#define QED_ETH_TYPE_DEFAULT (0)
#define QED_ETH_TYPE_ROCE (0x8915)
#define QED_UDP_PORT_TYPE_ROCE_V2 (0x12B7)
#define QED_ETH_TYPE_FCOE (0x8906)
#define QED_TCP_PORT_ISCSI (0xCBC)
#define QED_DCBX_INVALID_PRIORITY 0xFF
/* Get Traffic Class from priority traffic class table, 4 bits represent
* the traffic class corresponding to the priority.
*/
#define QED_DCBX_PRIO2TC(prio_tc_tbl, prio) \
((u32)(prio_tc_tbl >> ((7 - prio) * 4)) & 0x7)
static const struct qed_dcbx_app_metadata qed_dcbx_app_update[] = {
{DCBX_PROTOCOL_ISCSI, "ISCSI", QED_PCI_ISCSI},
{DCBX_PROTOCOL_FCOE, "FCOE", QED_PCI_FCOE},
{DCBX_PROTOCOL_ROCE, "ROCE", QED_PCI_ETH_ROCE},
{DCBX_PROTOCOL_ROCE_V2, "ROCE_V2", QED_PCI_ETH_ROCE},
{DCBX_PROTOCOL_ETH, "ETH", QED_PCI_ETH},
};
static bool qed_dcbx_app_ethtype(u32 app_info_bitmap)
{
return !!(QED_MFW_GET_FIELD(app_info_bitmap, DCBX_APP_SF) ==
DCBX_APP_SF_ETHTYPE);
}
static bool qed_dcbx_ieee_app_ethtype(u32 app_info_bitmap)
{
u8 mfw_val = QED_MFW_GET_FIELD(app_info_bitmap, DCBX_APP_SF_IEEE);
/* Old MFW */
if (mfw_val == DCBX_APP_SF_IEEE_RESERVED)
return qed_dcbx_app_ethtype(app_info_bitmap);
return !!(mfw_val == DCBX_APP_SF_IEEE_ETHTYPE);
}
static bool qed_dcbx_app_port(u32 app_info_bitmap)
{
return !!(QED_MFW_GET_FIELD(app_info_bitmap, DCBX_APP_SF) ==
DCBX_APP_SF_PORT);
}
static bool qed_dcbx_ieee_app_port(u32 app_info_bitmap, u8 type)
{
u8 mfw_val = QED_MFW_GET_FIELD(app_info_bitmap, DCBX_APP_SF_IEEE);
/* Old MFW */
if (mfw_val == DCBX_APP_SF_IEEE_RESERVED)
return qed_dcbx_app_port(app_info_bitmap);
return !!(mfw_val == type || mfw_val == DCBX_APP_SF_IEEE_TCP_UDP_PORT);
}
static bool qed_dcbx_default_tlv(u32 app_info_bitmap, u16 proto_id, bool ieee)
{
bool ethtype;
if (ieee)
ethtype = qed_dcbx_ieee_app_ethtype(app_info_bitmap);
else
ethtype = qed_dcbx_app_ethtype(app_info_bitmap);
return !!(ethtype && (proto_id == QED_ETH_TYPE_DEFAULT));
}
static bool qed_dcbx_iscsi_tlv(u32 app_info_bitmap, u16 proto_id, bool ieee)
{
bool port;
if (ieee)
port = qed_dcbx_ieee_app_port(app_info_bitmap,
DCBX_APP_SF_IEEE_TCP_PORT);
else
port = qed_dcbx_app_port(app_info_bitmap);
return !!(port && (proto_id == QED_TCP_PORT_ISCSI));
}
static bool qed_dcbx_fcoe_tlv(u32 app_info_bitmap, u16 proto_id, bool ieee)
{
bool ethtype;
if (ieee)
ethtype = qed_dcbx_ieee_app_ethtype(app_info_bitmap);
else
ethtype = qed_dcbx_app_ethtype(app_info_bitmap);
return !!(ethtype && (proto_id == QED_ETH_TYPE_FCOE));
}
static bool qed_dcbx_roce_tlv(u32 app_info_bitmap, u16 proto_id, bool ieee)
{
bool ethtype;
if (ieee)
ethtype = qed_dcbx_ieee_app_ethtype(app_info_bitmap);
else
ethtype = qed_dcbx_app_ethtype(app_info_bitmap);
return !!(ethtype && (proto_id == QED_ETH_TYPE_ROCE));
}
static bool qed_dcbx_roce_v2_tlv(u32 app_info_bitmap, u16 proto_id, bool ieee)
{
bool port;
if (ieee)
port = qed_dcbx_ieee_app_port(app_info_bitmap,
DCBX_APP_SF_IEEE_UDP_PORT);
else
port = qed_dcbx_app_port(app_info_bitmap);
return !!(port && (proto_id == QED_UDP_PORT_TYPE_ROCE_V2));
}
static void
qed_dcbx_dp_protocol(struct qed_hwfn *p_hwfn, struct qed_dcbx_results *p_data)
{
enum dcbx_protocol_type id;
int i;
DP_VERBOSE(p_hwfn, QED_MSG_DCB, "DCBX negotiated: %d\n",
p_data->dcbx_enabled);
for (i = 0; i < ARRAY_SIZE(qed_dcbx_app_update); i++) {
id = qed_dcbx_app_update[i].id;
DP_VERBOSE(p_hwfn, QED_MSG_DCB,
"%s info: update %d, enable %d, prio %d, tc %d, num_tc %d\n",
qed_dcbx_app_update[i].name, p_data->arr[id].update,
p_data->arr[id].enable, p_data->arr[id].priority,
p_data->arr[id].tc, p_hwfn->hw_info.num_active_tc);
}
}
static void
qed_dcbx_set_params(struct qed_dcbx_results *p_data,
struct qed_hw_info *p_info,
bool enable,
u8 prio,
u8 tc,
enum dcbx_protocol_type type,
enum qed_pci_personality personality)
{
/* PF update ramrod data */
p_data->arr[type].enable = enable;
p_data->arr[type].priority = prio;
p_data->arr[type].tc = tc;
if (enable)
p_data->arr[type].update = UPDATE_DCB;
else
p_data->arr[type].update = DONT_UPDATE_DCB_DSCP;
/* QM reconf data */
if (p_info->personality == personality)
p_info->offload_tc = tc;
}
/* Update app protocol data and hw_info fields with the TLV info */
static void
qed_dcbx_update_app_info(struct qed_dcbx_results *p_data,
struct qed_hwfn *p_hwfn,
bool enable,
u8 prio, u8 tc, enum dcbx_protocol_type type)
{
struct qed_hw_info *p_info = &p_hwfn->hw_info;
enum qed_pci_personality personality;
enum dcbx_protocol_type id;
char *name;
int i;
for (i = 0; i < ARRAY_SIZE(qed_dcbx_app_update); i++) {
id = qed_dcbx_app_update[i].id;
if (type != id)
continue;
personality = qed_dcbx_app_update[i].personality;
name = qed_dcbx_app_update[i].name;
qed_dcbx_set_params(p_data, p_info, enable,
prio, tc, type, personality);
}
}
static bool
qed_dcbx_get_app_protocol_type(struct qed_hwfn *p_hwfn,
u32 app_prio_bitmap,
u16 id, enum dcbx_protocol_type *type, bool ieee)
{
if (qed_dcbx_fcoe_tlv(app_prio_bitmap, id, ieee)) {
*type = DCBX_PROTOCOL_FCOE;
} else if (qed_dcbx_roce_tlv(app_prio_bitmap, id, ieee)) {
*type = DCBX_PROTOCOL_ROCE;
} else if (qed_dcbx_iscsi_tlv(app_prio_bitmap, id, ieee)) {
*type = DCBX_PROTOCOL_ISCSI;
} else if (qed_dcbx_default_tlv(app_prio_bitmap, id, ieee)) {
*type = DCBX_PROTOCOL_ETH;
} else if (qed_dcbx_roce_v2_tlv(app_prio_bitmap, id, ieee)) {
*type = DCBX_PROTOCOL_ROCE_V2;
} else {
*type = DCBX_MAX_PROTOCOL_TYPE;
DP_ERR(p_hwfn,
"No action required, App TLV id = 0x%x app_prio_bitmap = 0x%x\n",
id, app_prio_bitmap);
return false;
}
return true;
}
/* Parse app TLV's to update TC information in hw_info structure for
* reconfiguring QM. Get protocol specific data for PF update ramrod command.
*/
static int
qed_dcbx_process_tlv(struct qed_hwfn *p_hwfn,
struct qed_dcbx_results *p_data,
struct dcbx_app_priority_entry *p_tbl,
u32 pri_tc_tbl, int count, u8 dcbx_version)
{
enum dcbx_protocol_type type;
bool enable, ieee, eth_tlv;
u8 tc, priority_map;
u16 protocol_id;
int priority;
int i;
DP_VERBOSE(p_hwfn, QED_MSG_DCB, "Num APP entries = %d\n", count);
ieee = (dcbx_version == DCBX_CONFIG_VERSION_IEEE);
eth_tlv = false;
/* Parse APP TLV */
for (i = 0; i < count; i++) {
protocol_id = QED_MFW_GET_FIELD(p_tbl[i].entry,
DCBX_APP_PROTOCOL_ID);
priority_map = QED_MFW_GET_FIELD(p_tbl[i].entry,
DCBX_APP_PRI_MAP);
priority = ffs(priority_map) - 1;
if (priority < 0) {
DP_ERR(p_hwfn, "Invalid priority\n");
return -EINVAL;
}
tc = QED_DCBX_PRIO2TC(pri_tc_tbl, priority);
if (qed_dcbx_get_app_protocol_type(p_hwfn, p_tbl[i].entry,
protocol_id, &type, ieee)) {
/* ETH always have the enable bit reset, as it gets
* vlan information per packet. For other protocols,
* should be set according to the dcbx_enabled
* indication, but we only got here if there was an
* app tlv for the protocol, so dcbx must be enabled.
*/
if (type == DCBX_PROTOCOL_ETH) {
enable = false;
eth_tlv = true;
} else {
enable = true;
}
qed_dcbx_update_app_info(p_data, p_hwfn, enable,
priority, tc, type);
}
}
/* If Eth TLV is not detected, use UFP TC as default TC */
if (test_bit(QED_MF_UFP_SPECIFIC, &p_hwfn->cdev->mf_bits) && !eth_tlv)
p_data->arr[DCBX_PROTOCOL_ETH].tc = p_hwfn->ufp_info.tc;
/* Update ramrod protocol data and hw_info fields
* with default info when corresponding APP TLV's are not detected.
* The enabled field has a different logic for ethernet as only for
* ethernet dcb should disabled by default, as the information arrives
* from the OS (unless an explicit app tlv was present).
*/
tc = p_data->arr[DCBX_PROTOCOL_ETH].tc;
priority = p_data->arr[DCBX_PROTOCOL_ETH].priority;
for (type = 0; type < DCBX_MAX_PROTOCOL_TYPE; type++) {
if (p_data->arr[type].update)
continue;
enable = (type == DCBX_PROTOCOL_ETH) ? false : !!dcbx_version;
qed_dcbx_update_app_info(p_data, p_hwfn, enable,
priority, tc, type);
}
return 0;
}
/* Parse app TLV's to update TC information in hw_info structure for
* reconfiguring QM. Get protocol specific data for PF update ramrod command.
*/
static int qed_dcbx_process_mib_info(struct qed_hwfn *p_hwfn)
{
struct dcbx_app_priority_feature *p_app;
struct dcbx_app_priority_entry *p_tbl;
struct qed_dcbx_results data = { 0 };
struct dcbx_ets_feature *p_ets;
struct qed_hw_info *p_info;
u32 pri_tc_tbl, flags;
u8 dcbx_version;
int num_entries;
int rc = 0;
flags = p_hwfn->p_dcbx_info->operational.flags;
dcbx_version = QED_MFW_GET_FIELD(flags, DCBX_CONFIG_VERSION);
p_app = &p_hwfn->p_dcbx_info->operational.features.app;
p_tbl = p_app->app_pri_tbl;
p_ets = &p_hwfn->p_dcbx_info->operational.features.ets;
pri_tc_tbl = p_ets->pri_tc_tbl[0];
p_info = &p_hwfn->hw_info;
num_entries = QED_MFW_GET_FIELD(p_app->flags, DCBX_APP_NUM_ENTRIES);
rc = qed_dcbx_process_tlv(p_hwfn, &data, p_tbl, pri_tc_tbl,
num_entries, dcbx_version);
if (rc)
return rc;
p_info->num_active_tc = QED_MFW_GET_FIELD(p_ets->flags,
DCBX_ETS_MAX_TCS);
p_hwfn->qm_info.ooo_tc = QED_MFW_GET_FIELD(p_ets->flags, DCBX_OOO_TC);
data.pf_id = p_hwfn->rel_pf_id;
data.dcbx_enabled = !!dcbx_version;
qed_dcbx_dp_protocol(p_hwfn, &data);
memcpy(&p_hwfn->p_dcbx_info->results, &data,
sizeof(struct qed_dcbx_results));
return 0;
}
static int
qed_dcbx_copy_mib(struct qed_hwfn *p_hwfn,
struct qed_ptt *p_ptt,
struct qed_dcbx_mib_meta_data *p_data,
enum qed_mib_read_type type)
{
u32 prefix_seq_num, suffix_seq_num;
int read_count = 0;
int rc = 0;
/* The data is considered to be valid only if both sequence numbers are
* the same.
*/
do {
if (type == QED_DCBX_REMOTE_LLDP_MIB) {
qed_memcpy_from(p_hwfn, p_ptt, p_data->lldp_remote,
p_data->addr, p_data->size);
prefix_seq_num = p_data->lldp_remote->prefix_seq_num;
suffix_seq_num = p_data->lldp_remote->suffix_seq_num;
} else {
qed_memcpy_from(p_hwfn, p_ptt, p_data->mib,
p_data->addr, p_data->size);
prefix_seq_num = p_data->mib->prefix_seq_num;
suffix_seq_num = p_data->mib->suffix_seq_num;
}
read_count++;
DP_VERBOSE(p_hwfn,
QED_MSG_DCB,
"mib type = %d, try count = %d prefix seq num = %d suffix seq num = %d\n",
type, read_count, prefix_seq_num, suffix_seq_num);
} while ((prefix_seq_num != suffix_seq_num) &&
(read_count < QED_DCBX_MAX_MIB_READ_TRY));
if (read_count >= QED_DCBX_MAX_MIB_READ_TRY) {
DP_ERR(p_hwfn,
"MIB read err, mib type = %d, try count = %d prefix seq num = %d suffix seq num = %d\n",
type, read_count, prefix_seq_num, suffix_seq_num);
rc = -EIO;
}
return rc;
}
static void
qed_dcbx_get_priority_info(struct qed_hwfn *p_hwfn,
struct qed_dcbx_app_prio *p_prio,
struct qed_dcbx_results *p_results)
{
u8 val;
p_prio->roce = QED_DCBX_INVALID_PRIORITY;
p_prio->roce_v2 = QED_DCBX_INVALID_PRIORITY;
p_prio->iscsi = QED_DCBX_INVALID_PRIORITY;
p_prio->fcoe = QED_DCBX_INVALID_PRIORITY;
if (p_results->arr[DCBX_PROTOCOL_ROCE].update &&
p_results->arr[DCBX_PROTOCOL_ROCE].enable)
p_prio->roce = p_results->arr[DCBX_PROTOCOL_ROCE].priority;
if (p_results->arr[DCBX_PROTOCOL_ROCE_V2].update &&
p_results->arr[DCBX_PROTOCOL_ROCE_V2].enable) {
val = p_results->arr[DCBX_PROTOCOL_ROCE_V2].priority;
p_prio->roce_v2 = val;
}
if (p_results->arr[DCBX_PROTOCOL_ISCSI].update &&
p_results->arr[DCBX_PROTOCOL_ISCSI].enable)
p_prio->iscsi = p_results->arr[DCBX_PROTOCOL_ISCSI].priority;
if (p_results->arr[DCBX_PROTOCOL_FCOE].update &&
p_results->arr[DCBX_PROTOCOL_FCOE].enable)
p_prio->fcoe = p_results->arr[DCBX_PROTOCOL_FCOE].priority;
if (p_results->arr[DCBX_PROTOCOL_ETH].update &&
p_results->arr[DCBX_PROTOCOL_ETH].enable)
p_prio->eth = p_results->arr[DCBX_PROTOCOL_ETH].priority;
DP_VERBOSE(p_hwfn, QED_MSG_DCB,
"Priorities: iscsi %d, roce %d, roce v2 %d, fcoe %d, eth %d\n",
p_prio->iscsi, p_prio->roce, p_prio->roce_v2, p_prio->fcoe,
p_prio->eth);
}
static void
qed_dcbx_get_app_data(struct qed_hwfn *p_hwfn,
struct dcbx_app_priority_feature *p_app,
struct dcbx_app_priority_entry *p_tbl,
struct qed_dcbx_params *p_params, bool ieee)
{
struct qed_app_entry *entry;
u8 pri_map;
int i;
p_params->app_willing = QED_MFW_GET_FIELD(p_app->flags,
DCBX_APP_WILLING);
p_params->app_valid = QED_MFW_GET_FIELD(p_app->flags, DCBX_APP_ENABLED);
p_params->app_error = QED_MFW_GET_FIELD(p_app->flags, DCBX_APP_ERROR);
p_params->num_app_entries = QED_MFW_GET_FIELD(p_app->flags,
DCBX_APP_NUM_ENTRIES);
for (i = 0; i < DCBX_MAX_APP_PROTOCOL; i++) {
entry = &p_params->app_entry[i];
if (ieee) {
u8 sf_ieee;
u32 val;
sf_ieee = QED_MFW_GET_FIELD(p_tbl[i].entry,
DCBX_APP_SF_IEEE);
switch (sf_ieee) {
case DCBX_APP_SF_IEEE_RESERVED:
/* Old MFW */
val = QED_MFW_GET_FIELD(p_tbl[i].entry,
DCBX_APP_SF);
entry->sf_ieee = val ?
QED_DCBX_SF_IEEE_TCP_UDP_PORT :
QED_DCBX_SF_IEEE_ETHTYPE;
break;
case DCBX_APP_SF_IEEE_ETHTYPE:
entry->sf_ieee = QED_DCBX_SF_IEEE_ETHTYPE;
break;
case DCBX_APP_SF_IEEE_TCP_PORT:
entry->sf_ieee = QED_DCBX_SF_IEEE_TCP_PORT;
break;
case DCBX_APP_SF_IEEE_UDP_PORT:
entry->sf_ieee = QED_DCBX_SF_IEEE_UDP_PORT;
break;
case DCBX_APP_SF_IEEE_TCP_UDP_PORT:
entry->sf_ieee = QED_DCBX_SF_IEEE_TCP_UDP_PORT;
break;
}
} else {
entry->ethtype = !(QED_MFW_GET_FIELD(p_tbl[i].entry,
DCBX_APP_SF));
}
pri_map = QED_MFW_GET_FIELD(p_tbl[i].entry, DCBX_APP_PRI_MAP);
entry->prio = ffs(pri_map) - 1;
entry->proto_id = QED_MFW_GET_FIELD(p_tbl[i].entry,
DCBX_APP_PROTOCOL_ID);
qed_dcbx_get_app_protocol_type(p_hwfn, p_tbl[i].entry,
entry->proto_id,
&entry->proto_type, ieee);
}
DP_VERBOSE(p_hwfn, QED_MSG_DCB,
"APP params: willing %d, valid %d error = %d\n",
p_params->app_willing, p_params->app_valid,
p_params->app_error);
}
static void
qed_dcbx_get_pfc_data(struct qed_hwfn *p_hwfn,
u32 pfc, struct qed_dcbx_params *p_params)
{
u8 pfc_map;
p_params->pfc.willing = QED_MFW_GET_FIELD(pfc, DCBX_PFC_WILLING);
p_params->pfc.max_tc = QED_MFW_GET_FIELD(pfc, DCBX_PFC_CAPS);
p_params->pfc.enabled = QED_MFW_GET_FIELD(pfc, DCBX_PFC_ENABLED);
pfc_map = QED_MFW_GET_FIELD(pfc, DCBX_PFC_PRI_EN_BITMAP);
p_params->pfc.prio[0] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_0);
p_params->pfc.prio[1] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_1);
p_params->pfc.prio[2] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_2);
p_params->pfc.prio[3] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_3);
p_params->pfc.prio[4] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_4);
p_params->pfc.prio[5] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_5);
p_params->pfc.prio[6] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_6);
p_params->pfc.prio[7] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_7);
DP_VERBOSE(p_hwfn, QED_MSG_DCB,
"PFC params: willing %d, pfc_bitmap %u max_tc = %u enabled = %d\n",
p_params->pfc.willing, pfc_map, p_params->pfc.max_tc,
p_params->pfc.enabled);
}
static void
qed_dcbx_get_ets_data(struct qed_hwfn *p_hwfn,
struct dcbx_ets_feature *p_ets,
struct qed_dcbx_params *p_params)
{
u32 bw_map[2], tsa_map[2], pri_map;
int i;
p_params->ets_willing = QED_MFW_GET_FIELD(p_ets->flags,
DCBX_ETS_WILLING);
p_params->ets_enabled = QED_MFW_GET_FIELD(p_ets->flags,
DCBX_ETS_ENABLED);
p_params->ets_cbs = QED_MFW_GET_FIELD(p_ets->flags, DCBX_ETS_CBS);
p_params->max_ets_tc = QED_MFW_GET_FIELD(p_ets->flags,
DCBX_ETS_MAX_TCS);
DP_VERBOSE(p_hwfn, QED_MSG_DCB,
"ETS params: willing %d, enabled = %d ets_cbs %d pri_tc_tbl_0 %x max_ets_tc %d\n",
p_params->ets_willing, p_params->ets_enabled,
p_params->ets_cbs, p_ets->pri_tc_tbl[0],
p_params->max_ets_tc);
if (p_params->ets_enabled && !p_params->max_ets_tc) {
p_params->max_ets_tc = QED_MAX_PFC_PRIORITIES;
DP_VERBOSE(p_hwfn, QED_MSG_DCB,
"ETS params: max_ets_tc is forced to %d\n",
p_params->max_ets_tc);
}
/* 8 bit tsa and bw data corresponding to each of the 8 TC's are
* encoded in a type u32 array of size 2.
*/
bw_map[0] = be32_to_cpu(p_ets->tc_bw_tbl[0]);
bw_map[1] = be32_to_cpu(p_ets->tc_bw_tbl[1]);
tsa_map[0] = be32_to_cpu(p_ets->tc_tsa_tbl[0]);
tsa_map[1] = be32_to_cpu(p_ets->tc_tsa_tbl[1]);
pri_map = p_ets->pri_tc_tbl[0];
for (i = 0; i < QED_MAX_PFC_PRIORITIES; i++) {
p_params->ets_tc_bw_tbl[i] = ((u8 *)bw_map)[i];
p_params->ets_tc_tsa_tbl[i] = ((u8 *)tsa_map)[i];
p_params->ets_pri_tc_tbl[i] = QED_DCBX_PRIO2TC(pri_map, i);
DP_VERBOSE(p_hwfn, QED_MSG_DCB,
"elem %d bw_tbl %x tsa_tbl %x\n",
i, p_params->ets_tc_bw_tbl[i],
p_params->ets_tc_tsa_tbl[i]);
}
}
static void
qed_dcbx_get_common_params(struct qed_hwfn *p_hwfn,
struct dcbx_app_priority_feature *p_app,
struct dcbx_app_priority_entry *p_tbl,
struct dcbx_ets_feature *p_ets,
u32 pfc, struct qed_dcbx_params *p_params, bool ieee)
{
qed_dcbx_get_app_data(p_hwfn, p_app, p_tbl, p_params, ieee);
qed_dcbx_get_ets_data(p_hwfn, p_ets, p_params);
qed_dcbx_get_pfc_data(p_hwfn, pfc, p_params);
}
static void
qed_dcbx_get_local_params(struct qed_hwfn *p_hwfn, struct qed_dcbx_get *params)
{
struct dcbx_features *p_feat;
p_feat = &p_hwfn->p_dcbx_info->local_admin.features;
qed_dcbx_get_common_params(p_hwfn, &p_feat->app,
p_feat->app.app_pri_tbl, &p_feat->ets,
p_feat->pfc, &params->local.params, false);
params->local.valid = true;
}
static void
qed_dcbx_get_remote_params(struct qed_hwfn *p_hwfn, struct qed_dcbx_get *params)
{
struct dcbx_features *p_feat;
p_feat = &p_hwfn->p_dcbx_info->remote.features;
qed_dcbx_get_common_params(p_hwfn, &p_feat->app,
p_feat->app.app_pri_tbl, &p_feat->ets,
p_feat->pfc, &params->remote.params, false);
params->remote.valid = true;
}
static void
qed_dcbx_get_operational_params(struct qed_hwfn *p_hwfn,
struct qed_dcbx_get *params)
{
struct qed_dcbx_operational_params *p_operational;
struct qed_dcbx_results *p_results;
struct dcbx_features *p_feat;
bool enabled, err;
u32 flags;
bool val;
flags = p_hwfn->p_dcbx_info->operational.flags;
/* If DCBx version is non zero, then negotiation
* was successfuly performed
*/
p_operational = &params->operational;
enabled = !!(QED_MFW_GET_FIELD(flags, DCBX_CONFIG_VERSION) !=
DCBX_CONFIG_VERSION_DISABLED);
if (!enabled) {
p_operational->enabled = enabled;
p_operational->valid = false;
DP_VERBOSE(p_hwfn, QED_MSG_DCB, "Dcbx is disabled\n");
return;
}
p_feat = &p_hwfn->p_dcbx_info->operational.features;
p_results = &p_hwfn->p_dcbx_info->results;
val = !!(QED_MFW_GET_FIELD(flags, DCBX_CONFIG_VERSION) ==
DCBX_CONFIG_VERSION_IEEE);
p_operational->ieee = val;
val = !!(QED_MFW_GET_FIELD(flags, DCBX_CONFIG_VERSION) ==
DCBX_CONFIG_VERSION_CEE);
p_operational->cee = val;
val = !!(QED_MFW_GET_FIELD(flags, DCBX_CONFIG_VERSION) ==
DCBX_CONFIG_VERSION_STATIC);
p_operational->local = val;
DP_VERBOSE(p_hwfn, QED_MSG_DCB,
"Version support: ieee %d, cee %d, static %d\n",
p_operational->ieee, p_operational->cee,
p_operational->local);
qed_dcbx_get_common_params(p_hwfn, &p_feat->app,
p_feat->app.app_pri_tbl, &p_feat->ets,
p_feat->pfc, &params->operational.params,
p_operational->ieee);
qed_dcbx_get_priority_info(p_hwfn, &p_operational->app_prio, p_results);
err = QED_MFW_GET_FIELD(p_feat->app.flags, DCBX_APP_ERROR);
p_operational->err = err;
p_operational->enabled = enabled;
p_operational->valid = true;
}
static void
qed_dcbx_get_local_lldp_params(struct qed_hwfn *p_hwfn,
struct qed_dcbx_get *params)
{
struct lldp_config_params_s *p_local;
p_local = &p_hwfn->p_dcbx_info->lldp_local[LLDP_NEAREST_BRIDGE];
memcpy(params->lldp_local.local_chassis_id, p_local->local_chassis_id,
ARRAY_SIZE(p_local->local_chassis_id));
memcpy(params->lldp_local.local_port_id, p_local->local_port_id,
ARRAY_SIZE(p_local->local_port_id));
}
static void
qed_dcbx_get_remote_lldp_params(struct qed_hwfn *p_hwfn,
struct qed_dcbx_get *params)
{
struct lldp_status_params_s *p_remote;
p_remote = &p_hwfn->p_dcbx_info->lldp_remote[LLDP_NEAREST_BRIDGE];
memcpy(params->lldp_remote.peer_chassis_id, p_remote->peer_chassis_id,
ARRAY_SIZE(p_remote->peer_chassis_id));
memcpy(params->lldp_remote.peer_port_id, p_remote->peer_port_id,
ARRAY_SIZE(p_remote->peer_port_id));
}
static int
qed_dcbx_get_params(struct qed_hwfn *p_hwfn, struct qed_dcbx_get *p_params,
enum qed_mib_read_type type)
{
switch (type) {
case QED_DCBX_REMOTE_MIB:
qed_dcbx_get_remote_params(p_hwfn, p_params);
break;
case QED_DCBX_LOCAL_MIB:
qed_dcbx_get_local_params(p_hwfn, p_params);
break;
case QED_DCBX_OPERATIONAL_MIB:
qed_dcbx_get_operational_params(p_hwfn, p_params);
break;
case QED_DCBX_REMOTE_LLDP_MIB:
qed_dcbx_get_remote_lldp_params(p_hwfn, p_params);
break;
case QED_DCBX_LOCAL_LLDP_MIB:
qed_dcbx_get_local_lldp_params(p_hwfn, p_params);
break;
default:
DP_ERR(p_hwfn, "MIB read err, unknown mib type %d\n", type);
return -EINVAL;
}
return 0;
}
static int
qed_dcbx_read_local_lldp_mib(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
{
struct qed_dcbx_mib_meta_data data;
int rc = 0;
memset(&data, 0, sizeof(data));
data.addr = p_hwfn->mcp_info->port_addr + offsetof(struct public_port,
lldp_config_params);
data.lldp_local = p_hwfn->p_dcbx_info->lldp_local;
data.size = sizeof(struct lldp_config_params_s);
qed_memcpy_from(p_hwfn, p_ptt, data.lldp_local, data.addr, data.size);
return rc;
}
static int
qed_dcbx_read_remote_lldp_mib(struct qed_hwfn *p_hwfn,
struct qed_ptt *p_ptt,
enum qed_mib_read_type type)
{
struct qed_dcbx_mib_meta_data data;
int rc = 0;
memset(&data, 0, sizeof(data));
data.addr = p_hwfn->mcp_info->port_addr + offsetof(struct public_port,
lldp_status_params);
data.lldp_remote = p_hwfn->p_dcbx_info->lldp_remote;
data.size = sizeof(struct lldp_status_params_s);
rc = qed_dcbx_copy_mib(p_hwfn, p_ptt, &data, type);
return rc;
}
static int
qed_dcbx_read_operational_mib(struct qed_hwfn *p_hwfn,
struct qed_ptt *p_ptt,
enum qed_mib_read_type type)
{
struct qed_dcbx_mib_meta_data data;
int rc = 0;
memset(&data, 0, sizeof(data));
data.addr = p_hwfn->mcp_info->port_addr +
offsetof(struct public_port, operational_dcbx_mib);
data.mib = &p_hwfn->p_dcbx_info->operational;
data.size = sizeof(struct dcbx_mib);
rc = qed_dcbx_copy_mib(p_hwfn, p_ptt, &data, type);
return rc;
}
static int
qed_dcbx_read_remote_mib(struct qed_hwfn *p_hwfn,
struct qed_ptt *p_ptt, enum qed_mib_read_type type)
{
struct qed_dcbx_mib_meta_data data;
int rc = 0;
memset(&data, 0, sizeof(data));
data.addr = p_hwfn->mcp_info->port_addr +
offsetof(struct public_port, remote_dcbx_mib);
data.mib = &p_hwfn->p_dcbx_info->remote;
data.size = sizeof(struct dcbx_mib);
rc = qed_dcbx_copy_mib(p_hwfn, p_ptt, &data, type);
return rc;
}
static int
qed_dcbx_read_local_mib(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
{
struct qed_dcbx_mib_meta_data data;
int rc = 0;
memset(&data, 0, sizeof(data));
data.addr = p_hwfn->mcp_info->port_addr +
offsetof(struct public_port, local_admin_dcbx_mib);
data.local_admin = &p_hwfn->p_dcbx_info->local_admin;
data.size = sizeof(struct dcbx_local_params);
qed_memcpy_from(p_hwfn, p_ptt, data.local_admin, data.addr, data.size);
return rc;
}
static int qed_dcbx_read_mib(struct qed_hwfn *p_hwfn,
struct qed_ptt *p_ptt, enum qed_mib_read_type type)
{
int rc = -EINVAL;
switch (type) {
case QED_DCBX_OPERATIONAL_MIB:
rc = qed_dcbx_read_operational_mib(p_hwfn, p_ptt, type);
break;
case QED_DCBX_REMOTE_MIB:
rc = qed_dcbx_read_remote_mib(p_hwfn, p_ptt, type);
break;
case QED_DCBX_LOCAL_MIB:
rc = qed_dcbx_read_local_mib(p_hwfn, p_ptt);
break;
case QED_DCBX_REMOTE_LLDP_MIB:
rc = qed_dcbx_read_remote_lldp_mib(p_hwfn, p_ptt, type);
break;
case QED_DCBX_LOCAL_LLDP_MIB:
rc = qed_dcbx_read_local_lldp_mib(p_hwfn, p_ptt);
break;
default:
DP_ERR(p_hwfn, "MIB read err, unknown mib type %d\n", type);
}
return rc;
}
void qed_dcbx_aen(struct qed_hwfn *hwfn, u32 mib_type)
{
struct qed_common_cb_ops *op = hwfn->cdev->protocol_ops.common;
void *cookie = hwfn->cdev->ops_cookie;
if (cookie && op->dcbx_aen)
op->dcbx_aen(cookie, &hwfn->p_dcbx_info->get, mib_type);
}
/* Read updated MIB.
* Reconfigure QM and invoke PF update ramrod command if operational MIB
* change is detected.
*/
int
qed_dcbx_mib_update_event(struct qed_hwfn *p_hwfn,
struct qed_ptt *p_ptt, enum qed_mib_read_type type)
{
int rc = 0;
rc = qed_dcbx_read_mib(p_hwfn, p_ptt, type);
if (rc)
return rc;
if (type == QED_DCBX_OPERATIONAL_MIB) {
rc = qed_dcbx_process_mib_info(p_hwfn);
if (!rc) {
/* reconfigure tcs of QM queues according
* to negotiation results
*/
qed_qm_reconf(p_hwfn, p_ptt);
/* update storm FW with negotiation results */
qed_sp_pf_update(p_hwfn);
/* for roce PFs, we may want to enable/disable DPM
* when DCBx change occurs
*/
if (p_hwfn->hw_info.personality ==
QED_PCI_ETH_ROCE)
qed_roce_dpm_dcbx(p_hwfn, p_ptt);
}
}
qed_dcbx_get_params(p_hwfn, &p_hwfn->p_dcbx_info->get, type);
if (type == QED_DCBX_OPERATIONAL_MIB) {
struct qed_dcbx_results *p_data;
u16 val;
/* Configure in NIG which protocols support EDPM and should
* honor PFC.
*/
p_data = &p_hwfn->p_dcbx_info->results;
val = (0x1 << p_data->arr[DCBX_PROTOCOL_ROCE].tc) |
(0x1 << p_data->arr[DCBX_PROTOCOL_ROCE_V2].tc);
val <<= NIG_REG_TX_EDPM_CTRL_TX_EDPM_TC_EN_SHIFT;
val |= NIG_REG_TX_EDPM_CTRL_TX_EDPM_EN;
qed_wr(p_hwfn, p_ptt, NIG_REG_TX_EDPM_CTRL, val);
}
qed_dcbx_aen(p_hwfn, type);
return rc;
}
int qed_dcbx_info_alloc(struct qed_hwfn *p_hwfn)
{
p_hwfn->p_dcbx_info = kzalloc(sizeof(*p_hwfn->p_dcbx_info), GFP_KERNEL);
if (!p_hwfn->p_dcbx_info)
return -ENOMEM;
return 0;
}
void qed_dcbx_info_free(struct qed_hwfn *p_hwfn)
{
kfree(p_hwfn->p_dcbx_info);
p_hwfn->p_dcbx_info = NULL;
}
static void qed_dcbx_update_protocol_data(struct protocol_dcb_data *p_data,
struct qed_dcbx_results *p_src,
enum dcbx_protocol_type type)
{
p_data->dcb_enable_flag = p_src->arr[type].enable;
p_data->dcb_priority = p_src->arr[type].priority;
p_data->dcb_tc = p_src->arr[type].tc;
}
/* Set pf update ramrod command params */
void qed_dcbx_set_pf_update_params(struct qed_dcbx_results *p_src,
struct pf_update_ramrod_data *p_dest)
{
struct protocol_dcb_data *p_dcb_data;
u8 update_flag;
update_flag = p_src->arr[DCBX_PROTOCOL_FCOE].update;
p_dest->update_fcoe_dcb_data_mode = update_flag;
update_flag = p_src->arr[DCBX_PROTOCOL_ROCE].update;
p_dest->update_roce_dcb_data_mode = update_flag;
update_flag = p_src->arr[DCBX_PROTOCOL_ROCE_V2].update;
p_dest->update_rroce_dcb_data_mode = update_flag;
update_flag = p_src->arr[DCBX_PROTOCOL_ISCSI].update;
p_dest->update_iscsi_dcb_data_mode = update_flag;
update_flag = p_src->arr[DCBX_PROTOCOL_ETH].update;
p_dest->update_eth_dcb_data_mode = update_flag;
p_dcb_data = &p_dest->fcoe_dcb_data;
qed_dcbx_update_protocol_data(p_dcb_data, p_src, DCBX_PROTOCOL_FCOE);
p_dcb_data = &p_dest->roce_dcb_data;
qed_dcbx_update_protocol_data(p_dcb_data, p_src, DCBX_PROTOCOL_ROCE);
p_dcb_data = &p_dest->rroce_dcb_data;
qed_dcbx_update_protocol_data(p_dcb_data, p_src, DCBX_PROTOCOL_ROCE_V2);
p_dcb_data = &p_dest->iscsi_dcb_data;
qed_dcbx_update_protocol_data(p_dcb_data, p_src, DCBX_PROTOCOL_ISCSI);
p_dcb_data = &p_dest->eth_dcb_data;
qed_dcbx_update_protocol_data(p_dcb_data, p_src, DCBX_PROTOCOL_ETH);
}
#ifdef CONFIG_DCB
static int qed_dcbx_query_params(struct qed_hwfn *p_hwfn,
struct qed_dcbx_get *p_get,
enum qed_mib_read_type type)
{
struct qed_ptt *p_ptt;
int rc;
if (IS_VF(p_hwfn->cdev))
return -EINVAL;
p_ptt = qed_ptt_acquire(p_hwfn);
if (!p_ptt)
return -EBUSY;
rc = qed_dcbx_read_mib(p_hwfn, p_ptt, type);
if (rc)
goto out;
rc = qed_dcbx_get_params(p_hwfn, p_get, type);
out:
qed_ptt_release(p_hwfn, p_ptt);
return rc;
}
static void
qed_dcbx_set_pfc_data(struct qed_hwfn *p_hwfn,
u32 *pfc, struct qed_dcbx_params *p_params)
{
u8 pfc_map = 0;
int i;
*pfc &= ~DCBX_PFC_ERROR_MASK;
if (p_params->pfc.willing)
*pfc |= DCBX_PFC_WILLING_MASK;
else
*pfc &= ~DCBX_PFC_WILLING_MASK;
if (p_params->pfc.enabled)
*pfc |= DCBX_PFC_ENABLED_MASK;
else
*pfc &= ~DCBX_PFC_ENABLED_MASK;
*pfc &= ~DCBX_PFC_CAPS_MASK;
*pfc |= (u32)p_params->pfc.max_tc << DCBX_PFC_CAPS_SHIFT;
for (i = 0; i < QED_MAX_PFC_PRIORITIES; i++)
if (p_params->pfc.prio[i])
pfc_map |= BIT(i);
*pfc &= ~DCBX_PFC_PRI_EN_BITMAP_MASK;
*pfc |= (pfc_map << DCBX_PFC_PRI_EN_BITMAP_SHIFT);
DP_VERBOSE(p_hwfn, QED_MSG_DCB, "pfc = 0x%x\n", *pfc);
}
static void
qed_dcbx_set_ets_data(struct qed_hwfn *p_hwfn,
struct dcbx_ets_feature *p_ets,
struct qed_dcbx_params *p_params)
{
u8 *bw_map, *tsa_map;
u32 val;
int i;
if (p_params->ets_willing)
p_ets->flags |= DCBX_ETS_WILLING_MASK;
else
p_ets->flags &= ~DCBX_ETS_WILLING_MASK;
if (p_params->ets_cbs)
p_ets->flags |= DCBX_ETS_CBS_MASK;
else
p_ets->flags &= ~DCBX_ETS_CBS_MASK;
if (p_params->ets_enabled)
p_ets->flags |= DCBX_ETS_ENABLED_MASK;
else
p_ets->flags &= ~DCBX_ETS_ENABLED_MASK;
p_ets->flags &= ~DCBX_ETS_MAX_TCS_MASK;
p_ets->flags |= (u32)p_params->max_ets_tc << DCBX_ETS_MAX_TCS_SHIFT;
bw_map = (u8 *)&p_ets->tc_bw_tbl[0];
tsa_map = (u8 *)&p_ets->tc_tsa_tbl[0];
p_ets->pri_tc_tbl[0] = 0;
for (i = 0; i < QED_MAX_PFC_PRIORITIES; i++) {
bw_map[i] = p_params->ets_tc_bw_tbl[i];
tsa_map[i] = p_params->ets_tc_tsa_tbl[i];
/* Copy the priority value to the corresponding 4 bits in the
* traffic class table.
*/
val = (((u32)p_params->ets_pri_tc_tbl[i]) << ((7 - i) * 4));
p_ets->pri_tc_tbl[0] |= val;
}
for (i = 0; i < 2; i++) {
p_ets->tc_bw_tbl[i] = cpu_to_be32(p_ets->tc_bw_tbl[i]);
p_ets->tc_tsa_tbl[i] = cpu_to_be32(p_ets->tc_tsa_tbl[i]);
}
}
static void
qed_dcbx_set_app_data(struct qed_hwfn *p_hwfn,
struct dcbx_app_priority_feature *p_app,
struct qed_dcbx_params *p_params, bool ieee)
{
u32 *entry;
int i;
if (p_params->app_willing)
p_app->flags |= DCBX_APP_WILLING_MASK;
else
p_app->flags &= ~DCBX_APP_WILLING_MASK;
if (p_params->app_valid)
p_app->flags |= DCBX_APP_ENABLED_MASK;
else
p_app->flags &= ~DCBX_APP_ENABLED_MASK;
p_app->flags &= ~DCBX_APP_NUM_ENTRIES_MASK;
p_app->flags |= (u32)p_params->num_app_entries <<
DCBX_APP_NUM_ENTRIES_SHIFT;
for (i = 0; i < DCBX_MAX_APP_PROTOCOL; i++) {
entry = &p_app->app_pri_tbl[i].entry;
*entry = 0;
if (ieee) {
*entry &= ~(DCBX_APP_SF_IEEE_MASK | DCBX_APP_SF_MASK);
switch (p_params->app_entry[i].sf_ieee) {
case QED_DCBX_SF_IEEE_ETHTYPE:
*entry |= ((u32)DCBX_APP_SF_IEEE_ETHTYPE <<
DCBX_APP_SF_IEEE_SHIFT);
*entry |= ((u32)DCBX_APP_SF_ETHTYPE <<
DCBX_APP_SF_SHIFT);
break;
case QED_DCBX_SF_IEEE_TCP_PORT:
*entry |= ((u32)DCBX_APP_SF_IEEE_TCP_PORT <<
DCBX_APP_SF_IEEE_SHIFT);
*entry |= ((u32)DCBX_APP_SF_PORT <<
DCBX_APP_SF_SHIFT);
break;
case QED_DCBX_SF_IEEE_UDP_PORT:
*entry |= ((u32)DCBX_APP_SF_IEEE_UDP_PORT <<
DCBX_APP_SF_IEEE_SHIFT);
*entry |= ((u32)DCBX_APP_SF_PORT <<
DCBX_APP_SF_SHIFT);
break;
case QED_DCBX_SF_IEEE_TCP_UDP_PORT:
*entry |= ((u32)DCBX_APP_SF_IEEE_TCP_UDP_PORT <<
DCBX_APP_SF_IEEE_SHIFT);
*entry |= ((u32)DCBX_APP_SF_PORT <<
DCBX_APP_SF_SHIFT);
break;
}
} else {
*entry &= ~DCBX_APP_SF_MASK;
if (p_params->app_entry[i].ethtype)
*entry |= ((u32)DCBX_APP_SF_ETHTYPE <<
DCBX_APP_SF_SHIFT);
else
*entry |= ((u32)DCBX_APP_SF_PORT <<
DCBX_APP_SF_SHIFT);
}
*entry &= ~DCBX_APP_PROTOCOL_ID_MASK;
*entry |= ((u32)p_params->app_entry[i].proto_id <<
DCBX_APP_PROTOCOL_ID_SHIFT);
*entry &= ~DCBX_APP_PRI_MAP_MASK;
*entry |= ((u32)(p_params->app_entry[i].prio) <<
DCBX_APP_PRI_MAP_SHIFT);
}
}
static void
qed_dcbx_set_local_params(struct qed_hwfn *p_hwfn,
struct dcbx_local_params *local_admin,
struct qed_dcbx_set *params)
{
bool ieee = false;
local_admin->flags = 0;
memcpy(&local_admin->features,
&p_hwfn->p_dcbx_info->operational.features,
sizeof(local_admin->features));
if (params->enabled) {
local_admin->config = params->ver_num;
ieee = !!(params->ver_num & DCBX_CONFIG_VERSION_IEEE);
} else {
local_admin->config = DCBX_CONFIG_VERSION_DISABLED;
}
DP_VERBOSE(p_hwfn, QED_MSG_DCB, "Dcbx version = %d\n",
local_admin->config);
if (params->override_flags & QED_DCBX_OVERRIDE_PFC_CFG)
qed_dcbx_set_pfc_data(p_hwfn, &local_admin->features.pfc,
&params->config.params);
if (params->override_flags & QED_DCBX_OVERRIDE_ETS_CFG)
qed_dcbx_set_ets_data(p_hwfn, &local_admin->features.ets,
&params->config.params);
if (params->override_flags & QED_DCBX_OVERRIDE_APP_CFG)
qed_dcbx_set_app_data(p_hwfn, &local_admin->features.app,
&params->config.params, ieee);
}
int qed_dcbx_config_params(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt,
struct qed_dcbx_set *params, bool hw_commit)
{
struct dcbx_local_params local_admin;
struct qed_dcbx_mib_meta_data data;
u32 resp = 0, param = 0;
int rc = 0;
if (!hw_commit) {
memcpy(&p_hwfn->p_dcbx_info->set, params,
sizeof(struct qed_dcbx_set));
return 0;
}
/* clear set-parmas cache */
memset(&p_hwfn->p_dcbx_info->set, 0, sizeof(p_hwfn->p_dcbx_info->set));
memset(&local_admin, 0, sizeof(local_admin));
qed_dcbx_set_local_params(p_hwfn, &local_admin, params);
data.addr = p_hwfn->mcp_info->port_addr +
offsetof(struct public_port, local_admin_dcbx_mib);
data.local_admin = &local_admin;
data.size = sizeof(struct dcbx_local_params);
qed_memcpy_to(p_hwfn, p_ptt, data.addr, data.local_admin, data.size);
rc = qed_mcp_cmd(p_hwfn, p_ptt, DRV_MSG_CODE_SET_DCBX,
1 << DRV_MB_PARAM_LLDP_SEND_SHIFT, &resp, &param);
if (rc)
DP_NOTICE(p_hwfn, "Failed to send DCBX update request\n");
return rc;
}
int qed_dcbx_get_config_params(struct qed_hwfn *p_hwfn,
struct qed_dcbx_set *params)
{
struct qed_dcbx_get *dcbx_info;
int rc;
if (p_hwfn->p_dcbx_info->set.config.valid) {
memcpy(params, &p_hwfn->p_dcbx_info->set,
sizeof(struct qed_dcbx_set));
return 0;
}
dcbx_info = kzalloc(sizeof(*dcbx_info), GFP_KERNEL);
if (!dcbx_info)
return -ENOMEM;
rc = qed_dcbx_query_params(p_hwfn, dcbx_info, QED_DCBX_OPERATIONAL_MIB);
if (rc) {
kfree(dcbx_info);
return rc;
}
p_hwfn->p_dcbx_info->set.override_flags = 0;
p_hwfn->p_dcbx_info->set.ver_num = DCBX_CONFIG_VERSION_DISABLED;
if (dcbx_info->operational.cee)
p_hwfn->p_dcbx_info->set.ver_num |= DCBX_CONFIG_VERSION_CEE;
if (dcbx_info->operational.ieee)
p_hwfn->p_dcbx_info->set.ver_num |= DCBX_CONFIG_VERSION_IEEE;
if (dcbx_info->operational.local)
p_hwfn->p_dcbx_info->set.ver_num |= DCBX_CONFIG_VERSION_STATIC;
p_hwfn->p_dcbx_info->set.enabled = dcbx_info->operational.enabled;
memcpy(&p_hwfn->p_dcbx_info->set.config.params,
&dcbx_info->operational.params,
sizeof(struct qed_dcbx_admin_params));
p_hwfn->p_dcbx_info->set.config.valid = true;
memcpy(params, &p_hwfn->p_dcbx_info->set, sizeof(struct qed_dcbx_set));
kfree(dcbx_info);
return 0;
}
static struct qed_dcbx_get *qed_dcbnl_get_dcbx(struct qed_hwfn *hwfn,
enum qed_mib_read_type type)
{
struct qed_dcbx_get *dcbx_info;
dcbx_info = kzalloc(sizeof(*dcbx_info), GFP_ATOMIC);
if (!dcbx_info)
return NULL;
if (qed_dcbx_query_params(hwfn, dcbx_info, type)) {
kfree(dcbx_info);
return NULL;
}
if ((type == QED_DCBX_OPERATIONAL_MIB) &&
!dcbx_info->operational.enabled) {
DP_INFO(hwfn, "DCBX is not enabled/operational\n");
kfree(dcbx_info);
return NULL;
}
return dcbx_info;
}
static u8 qed_dcbnl_getstate(struct qed_dev *cdev)
{
struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
struct qed_dcbx_get *dcbx_info;
bool enabled;
dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
if (!dcbx_info)
return 0;
enabled = dcbx_info->operational.enabled;
DP_VERBOSE(hwfn, QED_MSG_DCB, "DCB state = %d\n", enabled);
kfree(dcbx_info);
return enabled;
}
static u8 qed_dcbnl_setstate(struct qed_dev *cdev, u8 state)
{
struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
struct qed_dcbx_set dcbx_set;
struct qed_ptt *ptt;
int rc;
DP_VERBOSE(hwfn, QED_MSG_DCB, "DCB state = %d\n", state);
memset(&dcbx_set, 0, sizeof(dcbx_set));
rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
if (rc)
return 1;
dcbx_set.enabled = !!state;
ptt = qed_ptt_acquire(hwfn);
if (!ptt)
return 1;
rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
qed_ptt_release(hwfn, ptt);
return rc ? 1 : 0;
}
static void qed_dcbnl_getpgtccfgtx(struct qed_dev *cdev, int tc, u8 *prio_type,
u8 *pgid, u8 *bw_pct, u8 *up_map)
{
struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
struct qed_dcbx_get *dcbx_info;
DP_VERBOSE(hwfn, QED_MSG_DCB, "tc = %d\n", tc);
*prio_type = *pgid = *bw_pct = *up_map = 0;
if (tc < 0 || tc >= QED_MAX_PFC_PRIORITIES) {
DP_INFO(hwfn, "Invalid tc %d\n", tc);
return;
}
dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
if (!dcbx_info)
return;
*pgid = dcbx_info->operational.params.ets_pri_tc_tbl[tc];
kfree(dcbx_info);
}
static void qed_dcbnl_getpgbwgcfgtx(struct qed_dev *cdev, int pgid, u8 *bw_pct)
{
struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
struct qed_dcbx_get *dcbx_info;
*bw_pct = 0;
DP_VERBOSE(hwfn, QED_MSG_DCB, "pgid = %d\n", pgid);
if (pgid < 0 || pgid >= QED_MAX_PFC_PRIORITIES) {
DP_INFO(hwfn, "Invalid pgid %d\n", pgid);
return;
}
dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
if (!dcbx_info)
return;
*bw_pct = dcbx_info->operational.params.ets_tc_bw_tbl[pgid];
DP_VERBOSE(hwfn, QED_MSG_DCB, "bw_pct = %d\n", *bw_pct);
kfree(dcbx_info);
}
static void qed_dcbnl_getpgtccfgrx(struct qed_dev *cdev, int tc, u8 *prio,
u8 *bwg_id, u8 *bw_pct, u8 *up_map)
{
DP_INFO(QED_LEADING_HWFN(cdev), "Rx ETS is not supported\n");
*prio = *bwg_id = *bw_pct = *up_map = 0;
}
static void qed_dcbnl_getpgbwgcfgrx(struct qed_dev *cdev,
int bwg_id, u8 *bw_pct)
{
DP_INFO(QED_LEADING_HWFN(cdev), "Rx ETS is not supported\n");
*bw_pct = 0;
}
static void qed_dcbnl_getpfccfg(struct qed_dev *cdev,
int priority, u8 *setting)
{
struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
struct qed_dcbx_get *dcbx_info;
DP_VERBOSE(hwfn, QED_MSG_DCB, "priority = %d\n", priority);
if (priority < 0 || priority >= QED_MAX_PFC_PRIORITIES) {
DP_INFO(hwfn, "Invalid priority %d\n", priority);
return;
}
dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
if (!dcbx_info)
return;
*setting = dcbx_info->operational.params.pfc.prio[priority];
DP_VERBOSE(hwfn, QED_MSG_DCB, "setting = %d\n", *setting);
kfree(dcbx_info);
}
static void qed_dcbnl_setpfccfg(struct qed_dev *cdev, int priority, u8 setting)
{
struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
struct qed_dcbx_set dcbx_set;
struct qed_ptt *ptt;
int rc;
DP_VERBOSE(hwfn, QED_MSG_DCB, "priority = %d setting = %d\n",
priority, setting);
if (priority < 0 || priority >= QED_MAX_PFC_PRIORITIES) {
DP_INFO(hwfn, "Invalid priority %d\n", priority);
return;
}
memset(&dcbx_set, 0, sizeof(dcbx_set));
rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
if (rc)
return;
dcbx_set.override_flags |= QED_DCBX_OVERRIDE_PFC_CFG;
dcbx_set.config.params.pfc.prio[priority] = !!setting;
ptt = qed_ptt_acquire(hwfn);
if (!ptt)
return;
rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
qed_ptt_release(hwfn, ptt);
}
static u8 qed_dcbnl_getcap(struct qed_dev *cdev, int capid, u8 *cap)
{
struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
struct qed_dcbx_get *dcbx_info;
int rc = 0;
DP_VERBOSE(hwfn, QED_MSG_DCB, "capid = %d\n", capid);
dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
if (!dcbx_info)
return 1;
switch (capid) {
case DCB_CAP_ATTR_PG:
case DCB_CAP_ATTR_PFC:
case DCB_CAP_ATTR_UP2TC:
case DCB_CAP_ATTR_GSP:
*cap = true;
break;
case DCB_CAP_ATTR_PG_TCS:
case DCB_CAP_ATTR_PFC_TCS:
*cap = 0x80;
break;
case DCB_CAP_ATTR_DCBX:
*cap = (DCB_CAP_DCBX_LLD_MANAGED | DCB_CAP_DCBX_VER_CEE |
DCB_CAP_DCBX_VER_IEEE | DCB_CAP_DCBX_STATIC);
break;
default:
*cap = false;
rc = 1;
}
DP_VERBOSE(hwfn, QED_MSG_DCB, "id = %d caps = %d\n", capid, *cap);
kfree(dcbx_info);
return rc;
}
static int qed_dcbnl_getnumtcs(struct qed_dev *cdev, int tcid, u8 *num)
{
struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
struct qed_dcbx_get *dcbx_info;
int rc = 0;
DP_VERBOSE(hwfn, QED_MSG_DCB, "tcid = %d\n", tcid);
dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
if (!dcbx_info)
return -EINVAL;
switch (tcid) {
case DCB_NUMTCS_ATTR_PG:
*num = dcbx_info->operational.params.max_ets_tc;
break;
case DCB_NUMTCS_ATTR_PFC:
*num = dcbx_info->operational.params.pfc.max_tc;
break;
default:
rc = -EINVAL;
}
kfree(dcbx_info);
DP_VERBOSE(hwfn, QED_MSG_DCB, "numtcs = %d\n", *num);
return rc;
}
static u8 qed_dcbnl_getpfcstate(struct qed_dev *cdev)
{
struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
struct qed_dcbx_get *dcbx_info;
bool enabled;
dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
if (!dcbx_info)
return 0;
enabled = dcbx_info->operational.params.pfc.enabled;
DP_VERBOSE(hwfn, QED_MSG_DCB, "pfc state = %d\n", enabled);
kfree(dcbx_info);
return enabled;
}
static u8 qed_dcbnl_getdcbx(struct qed_dev *cdev)
{
struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
struct qed_dcbx_get *dcbx_info;
u8 mode = 0;
dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
if (!dcbx_info)
return 0;
if (dcbx_info->operational.enabled)
mode |= DCB_CAP_DCBX_LLD_MANAGED;
if (dcbx_info->operational.ieee)
mode |= DCB_CAP_DCBX_VER_IEEE;
if (dcbx_info->operational.cee)
mode |= DCB_CAP_DCBX_VER_CEE;
if (dcbx_info->operational.local)
mode |= DCB_CAP_DCBX_STATIC;
DP_VERBOSE(hwfn, QED_MSG_DCB, "dcb mode = %d\n", mode);
kfree(dcbx_info);
return mode;
}
static void qed_dcbnl_setpgtccfgtx(struct qed_dev *cdev,
int tc,
u8 pri_type, u8 pgid, u8 bw_pct, u8 up_map)
{
struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
struct qed_dcbx_set dcbx_set;
struct qed_ptt *ptt;
int rc;
DP_VERBOSE(hwfn, QED_MSG_DCB,
"tc = %d pri_type = %d pgid = %d bw_pct = %d up_map = %d\n",
tc, pri_type, pgid, bw_pct, up_map);
if (tc < 0 || tc >= QED_MAX_PFC_PRIORITIES) {
DP_INFO(hwfn, "Invalid tc %d\n", tc);
return;
}
memset(&dcbx_set, 0, sizeof(dcbx_set));
rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
if (rc)
return;
dcbx_set.override_flags |= QED_DCBX_OVERRIDE_ETS_CFG;
dcbx_set.config.params.ets_pri_tc_tbl[tc] = pgid;
ptt = qed_ptt_acquire(hwfn);
if (!ptt)
return;
rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
qed_ptt_release(hwfn, ptt);
}
static void qed_dcbnl_setpgtccfgrx(struct qed_dev *cdev, int prio,
u8 pri_type, u8 pgid, u8 bw_pct, u8 up_map)
{
DP_INFO(QED_LEADING_HWFN(cdev), "Rx ETS is not supported\n");
}
static void qed_dcbnl_setpgbwgcfgtx(struct qed_dev *cdev, int pgid, u8 bw_pct)
{
struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
struct qed_dcbx_set dcbx_set;
struct qed_ptt *ptt;
int rc;
DP_VERBOSE(hwfn, QED_MSG_DCB, "pgid = %d bw_pct = %d\n", pgid, bw_pct);
if (pgid < 0 || pgid >= QED_MAX_PFC_PRIORITIES) {
DP_INFO(hwfn, "Invalid pgid %d\n", pgid);
return;
}
memset(&dcbx_set, 0, sizeof(dcbx_set));
rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
if (rc)
return;
dcbx_set.override_flags |= QED_DCBX_OVERRIDE_ETS_CFG;
dcbx_set.config.params.ets_tc_bw_tbl[pgid] = bw_pct;
ptt = qed_ptt_acquire(hwfn);
if (!ptt)
return;
rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
qed_ptt_release(hwfn, ptt);
}
static void qed_dcbnl_setpgbwgcfgrx(struct qed_dev *cdev, int pgid, u8 bw_pct)
{
DP_INFO(QED_LEADING_HWFN(cdev), "Rx ETS is not supported\n");
}
static u8 qed_dcbnl_setall(struct qed_dev *cdev)
{
struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
struct qed_dcbx_set dcbx_set;
struct qed_ptt *ptt;
int rc;
memset(&dcbx_set, 0, sizeof(dcbx_set));
rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
if (rc)
return 1;
ptt = qed_ptt_acquire(hwfn);
if (!ptt)
return 1;
rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 1);
qed_ptt_release(hwfn, ptt);
return rc;
}
static int qed_dcbnl_setnumtcs(struct qed_dev *cdev, int tcid, u8 num)
{
struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
struct qed_dcbx_set dcbx_set;
struct qed_ptt *ptt;
int rc;
DP_VERBOSE(hwfn, QED_MSG_DCB, "tcid = %d num = %d\n", tcid, num);
memset(&dcbx_set, 0, sizeof(dcbx_set));
rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
if (rc)
return 1;
switch (tcid) {
case DCB_NUMTCS_ATTR_PG:
dcbx_set.override_flags |= QED_DCBX_OVERRIDE_ETS_CFG;
dcbx_set.config.params.max_ets_tc = num;
break;
case DCB_NUMTCS_ATTR_PFC:
dcbx_set.override_flags |= QED_DCBX_OVERRIDE_PFC_CFG;
dcbx_set.config.params.pfc.max_tc = num;
break;
default:
DP_INFO(hwfn, "Invalid tcid %d\n", tcid);
return -EINVAL;
}
ptt = qed_ptt_acquire(hwfn);
if (!ptt)
return -EINVAL;
rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
qed_ptt_release(hwfn, ptt);
return 0;
}
static void qed_dcbnl_setpfcstate(struct qed_dev *cdev, u8 state)
{
struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
struct qed_dcbx_set dcbx_set;
struct qed_ptt *ptt;
int rc;
DP_VERBOSE(hwfn, QED_MSG_DCB, "new state = %d\n", state);
memset(&dcbx_set, 0, sizeof(dcbx_set));
rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
if (rc)
return;
dcbx_set.override_flags |= QED_DCBX_OVERRIDE_PFC_CFG;
dcbx_set.config.params.pfc.enabled = !!state;
ptt = qed_ptt_acquire(hwfn);
if (!ptt)
return;
rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
qed_ptt_release(hwfn, ptt);
}
static int qed_dcbnl_getapp(struct qed_dev *cdev, u8 idtype, u16 idval)
{
struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
struct qed_dcbx_get *dcbx_info;
struct qed_app_entry *entry;
bool ethtype;
u8 prio = 0;
int i;
dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
if (!dcbx_info)
return -EINVAL;
ethtype = !!(idtype == DCB_APP_IDTYPE_ETHTYPE);
for (i = 0; i < QED_DCBX_MAX_APP_PROTOCOL; i++) {
entry = &dcbx_info->operational.params.app_entry[i];
if ((entry->ethtype == ethtype) && (entry->proto_id == idval)) {
prio = entry->prio;
break;
}
}
if (i == QED_DCBX_MAX_APP_PROTOCOL) {
DP_ERR(cdev, "App entry (%d, %d) not found\n", idtype, idval);
kfree(dcbx_info);
return -EINVAL;
}
kfree(dcbx_info);
return prio;
}
static int qed_dcbnl_setapp(struct qed_dev *cdev,
u8 idtype, u16 idval, u8 pri_map)
{
struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
struct qed_dcbx_set dcbx_set;
struct qed_app_entry *entry;
struct qed_ptt *ptt;
bool ethtype;
int rc, i;
memset(&dcbx_set, 0, sizeof(dcbx_set));
rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
if (rc)
return -EINVAL;
ethtype = !!(idtype == DCB_APP_IDTYPE_ETHTYPE);
for (i = 0; i < QED_DCBX_MAX_APP_PROTOCOL; i++) {
entry = &dcbx_set.config.params.app_entry[i];
if ((entry->ethtype == ethtype) && (entry->proto_id == idval))
break;
/* First empty slot */
if (!entry->proto_id) {
dcbx_set.config.params.num_app_entries++;
break;
}
}
if (i == QED_DCBX_MAX_APP_PROTOCOL) {
DP_ERR(cdev, "App table is full\n");
return -EBUSY;
}
dcbx_set.override_flags |= QED_DCBX_OVERRIDE_APP_CFG;
dcbx_set.config.params.app_entry[i].ethtype = ethtype;
dcbx_set.config.params.app_entry[i].proto_id = idval;
dcbx_set.config.params.app_entry[i].prio = pri_map;
ptt = qed_ptt_acquire(hwfn);
if (!ptt)
return -EBUSY;
rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
qed_ptt_release(hwfn, ptt);
return rc;
}
static u8 qed_dcbnl_setdcbx(struct qed_dev *cdev, u8 mode)
{
struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
struct qed_dcbx_set dcbx_set;
struct qed_ptt *ptt;
int rc;
DP_VERBOSE(hwfn, QED_MSG_DCB, "new mode = %x\n", mode);
if (!(mode & DCB_CAP_DCBX_VER_IEEE) &&
!(mode & DCB_CAP_DCBX_VER_CEE) && !(mode & DCB_CAP_DCBX_STATIC)) {
DP_INFO(hwfn, "Allowed modes are cee, ieee or static\n");
return 1;
}
memset(&dcbx_set, 0, sizeof(dcbx_set));
rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
if (rc)
return 1;
dcbx_set.ver_num = 0;
if (mode & DCB_CAP_DCBX_VER_CEE) {
dcbx_set.ver_num |= DCBX_CONFIG_VERSION_CEE;
dcbx_set.enabled = true;
}
if (mode & DCB_CAP_DCBX_VER_IEEE) {
dcbx_set.ver_num |= DCBX_CONFIG_VERSION_IEEE;
dcbx_set.enabled = true;
}
if (mode & DCB_CAP_DCBX_STATIC) {
dcbx_set.ver_num |= DCBX_CONFIG_VERSION_STATIC;
dcbx_set.enabled = true;
}
ptt = qed_ptt_acquire(hwfn);
if (!ptt)
return 1;
rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
qed_ptt_release(hwfn, ptt);
return rc;
}
static u8 qed_dcbnl_getfeatcfg(struct qed_dev *cdev, int featid, u8 *flags)
{
struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
struct qed_dcbx_get *dcbx_info;
DP_VERBOSE(hwfn, QED_MSG_DCB, "Feature id = %d\n", featid);
dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
if (!dcbx_info)
return 1;
*flags = 0;
switch (featid) {
case DCB_FEATCFG_ATTR_PG:
if (dcbx_info->operational.params.ets_enabled)
*flags = DCB_FEATCFG_ENABLE;
else
*flags = DCB_FEATCFG_ERROR;
break;
case DCB_FEATCFG_ATTR_PFC:
if (dcbx_info->operational.params.pfc.enabled)
*flags = DCB_FEATCFG_ENABLE;
else
*flags = DCB_FEATCFG_ERROR;
break;
case DCB_FEATCFG_ATTR_APP:
if (dcbx_info->operational.params.app_valid)
*flags = DCB_FEATCFG_ENABLE;
else
*flags = DCB_FEATCFG_ERROR;
break;
default:
DP_INFO(hwfn, "Invalid feature-ID %d\n", featid);
kfree(dcbx_info);
return 1;
}
DP_VERBOSE(hwfn, QED_MSG_DCB, "flags = %d\n", *flags);
kfree(dcbx_info);
return 0;
}
static u8 qed_dcbnl_setfeatcfg(struct qed_dev *cdev, int featid, u8 flags)
{
struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
struct qed_dcbx_set dcbx_set;
bool enabled, willing;
struct qed_ptt *ptt;
int rc;
DP_VERBOSE(hwfn, QED_MSG_DCB, "featid = %d flags = %d\n",
featid, flags);
memset(&dcbx_set, 0, sizeof(dcbx_set));
rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
if (rc)
return 1;
enabled = !!(flags & DCB_FEATCFG_ENABLE);
willing = !!(flags & DCB_FEATCFG_WILLING);
switch (featid) {
case DCB_FEATCFG_ATTR_PG:
dcbx_set.override_flags |= QED_DCBX_OVERRIDE_ETS_CFG;
dcbx_set.config.params.ets_enabled = enabled;
dcbx_set.config.params.ets_willing = willing;
break;
case DCB_FEATCFG_ATTR_PFC:
dcbx_set.override_flags |= QED_DCBX_OVERRIDE_PFC_CFG;
dcbx_set.config.params.pfc.enabled = enabled;
dcbx_set.config.params.pfc.willing = willing;
break;
case DCB_FEATCFG_ATTR_APP:
dcbx_set.override_flags |= QED_DCBX_OVERRIDE_APP_CFG;
dcbx_set.config.params.app_willing = willing;
break;
default:
DP_INFO(hwfn, "Invalid feature-ID %d\n", featid);
return 1;
}
ptt = qed_ptt_acquire(hwfn);
if (!ptt)
return 1;
rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
qed_ptt_release(hwfn, ptt);
return 0;
}
static int qed_dcbnl_peer_getappinfo(struct qed_dev *cdev,
struct dcb_peer_app_info *info,
u16 *app_count)
{
struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
struct qed_dcbx_get *dcbx_info;
dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_REMOTE_MIB);
if (!dcbx_info)
return -EINVAL;
info->willing = dcbx_info->remote.params.app_willing;
info->error = dcbx_info->remote.params.app_error;
*app_count = dcbx_info->remote.params.num_app_entries;
kfree(dcbx_info);
return 0;
}
static int qed_dcbnl_peer_getapptable(struct qed_dev *cdev,
struct dcb_app *table)
{
struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
struct qed_dcbx_get *dcbx_info;
int i;
dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_REMOTE_MIB);
if (!dcbx_info)
return -EINVAL;
for (i = 0; i < dcbx_info->remote.params.num_app_entries; i++) {
if (dcbx_info->remote.params.app_entry[i].ethtype)
table[i].selector = DCB_APP_IDTYPE_ETHTYPE;
else
table[i].selector = DCB_APP_IDTYPE_PORTNUM;
table[i].priority = dcbx_info->remote.params.app_entry[i].prio;
table[i].protocol =
dcbx_info->remote.params.app_entry[i].proto_id;
}
kfree(dcbx_info);
return 0;
}
static int qed_dcbnl_cee_peer_getpfc(struct qed_dev *cdev, struct cee_pfc *pfc)
{
struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
struct qed_dcbx_get *dcbx_info;
int i;
dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_REMOTE_MIB);
if (!dcbx_info)
return -EINVAL;
for (i = 0; i < QED_MAX_PFC_PRIORITIES; i++)
if (dcbx_info->remote.params.pfc.prio[i])
pfc->pfc_en |= BIT(i);
pfc->tcs_supported = dcbx_info->remote.params.pfc.max_tc;
DP_VERBOSE(hwfn, QED_MSG_DCB, "pfc state = %d tcs_supported = %d\n",
pfc->pfc_en, pfc->tcs_supported);
kfree(dcbx_info);
return 0;
}
static int qed_dcbnl_cee_peer_getpg(struct qed_dev *cdev, struct cee_pg *pg)
{
struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
struct qed_dcbx_get *dcbx_info;
int i;
dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_REMOTE_MIB);
if (!dcbx_info)
return -EINVAL;
pg->willing = dcbx_info->remote.params.ets_willing;
for (i = 0; i < QED_MAX_PFC_PRIORITIES; i++) {
pg->pg_bw[i] = dcbx_info->remote.params.ets_tc_bw_tbl[i];
pg->prio_pg[i] = dcbx_info->remote.params.ets_pri_tc_tbl[i];
}
DP_VERBOSE(hwfn, QED_MSG_DCB, "willing = %d", pg->willing);
kfree(dcbx_info);
return 0;
}
static int qed_dcbnl_get_ieee_pfc(struct qed_dev *cdev,
struct ieee_pfc *pfc, bool remote)
{
struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
struct qed_dcbx_params *params;
struct qed_dcbx_get *dcbx_info;
int rc, i;
dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
if (!dcbx_info)
return -EINVAL;
if (!dcbx_info->operational.ieee) {
DP_INFO(hwfn, "DCBX is not enabled/operational in IEEE mode\n");
kfree(dcbx_info);
return -EINVAL;
}
if (remote) {
memset(dcbx_info, 0, sizeof(*dcbx_info));
rc = qed_dcbx_query_params(hwfn, dcbx_info,
QED_DCBX_REMOTE_MIB);
if (rc) {
kfree(dcbx_info);
return -EINVAL;
}
params = &dcbx_info->remote.params;
} else {
params = &dcbx_info->operational.params;
}
pfc->pfc_cap = params->pfc.max_tc;
pfc->pfc_en = 0;
for (i = 0; i < QED_MAX_PFC_PRIORITIES; i++)
if (params->pfc.prio[i])
pfc->pfc_en |= BIT(i);
kfree(dcbx_info);
return 0;
}
static int qed_dcbnl_ieee_getpfc(struct qed_dev *cdev, struct ieee_pfc *pfc)
{
return qed_dcbnl_get_ieee_pfc(cdev, pfc, false);
}
static int qed_dcbnl_ieee_setpfc(struct qed_dev *cdev, struct ieee_pfc *pfc)
{
struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
struct qed_dcbx_get *dcbx_info;
struct qed_dcbx_set dcbx_set;
struct qed_ptt *ptt;
int rc, i;
dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
if (!dcbx_info)
return -EINVAL;
if (!dcbx_info->operational.ieee) {
DP_INFO(hwfn, "DCBX is not enabled/operational in IEEE mode\n");
kfree(dcbx_info);
return -EINVAL;
}
kfree(dcbx_info);
memset(&dcbx_set, 0, sizeof(dcbx_set));
rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
if (rc)
return -EINVAL;
dcbx_set.override_flags |= QED_DCBX_OVERRIDE_PFC_CFG;
for (i = 0; i < QED_MAX_PFC_PRIORITIES; i++)
dcbx_set.config.params.pfc.prio[i] = !!(pfc->pfc_en & BIT(i));
dcbx_set.config.params.pfc.max_tc = pfc->pfc_cap;
ptt = qed_ptt_acquire(hwfn);
if (!ptt)
return -EINVAL;
rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
qed_ptt_release(hwfn, ptt);
return rc;
}
static int qed_dcbnl_get_ieee_ets(struct qed_dev *cdev,
struct ieee_ets *ets, bool remote)
{
struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
struct qed_dcbx_get *dcbx_info;
struct qed_dcbx_params *params;
int rc;
dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
if (!dcbx_info)
return -EINVAL;
if (!dcbx_info->operational.ieee) {
DP_INFO(hwfn, "DCBX is not enabled/operational in IEEE mode\n");
kfree(dcbx_info);
return -EINVAL;
}
if (remote) {
memset(dcbx_info, 0, sizeof(*dcbx_info));
rc = qed_dcbx_query_params(hwfn, dcbx_info,
QED_DCBX_REMOTE_MIB);
if (rc) {
kfree(dcbx_info);
return -EINVAL;
}
params = &dcbx_info->remote.params;
} else {
params = &dcbx_info->operational.params;
}
ets->ets_cap = params->max_ets_tc;
ets->willing = params->ets_willing;
ets->cbs = params->ets_cbs;
memcpy(ets->tc_tx_bw, params->ets_tc_bw_tbl, sizeof(ets->tc_tx_bw));
memcpy(ets->tc_tsa, params->ets_tc_tsa_tbl, sizeof(ets->tc_tsa));
memcpy(ets->prio_tc, params->ets_pri_tc_tbl, sizeof(ets->prio_tc));
kfree(dcbx_info);
return 0;
}
static int qed_dcbnl_ieee_getets(struct qed_dev *cdev, struct ieee_ets *ets)
{
return qed_dcbnl_get_ieee_ets(cdev, ets, false);
}
static int qed_dcbnl_ieee_setets(struct qed_dev *cdev, struct ieee_ets *ets)
{
struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
struct qed_dcbx_get *dcbx_info;
struct qed_dcbx_set dcbx_set;
struct qed_ptt *ptt;
int rc;
dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
if (!dcbx_info)
return -EINVAL;
if (!dcbx_info->operational.ieee) {
DP_INFO(hwfn, "DCBX is not enabled/operational in IEEE mode\n");
kfree(dcbx_info);
return -EINVAL;
}
kfree(dcbx_info);
memset(&dcbx_set, 0, sizeof(dcbx_set));
rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
if (rc)
return -EINVAL;
dcbx_set.override_flags |= QED_DCBX_OVERRIDE_ETS_CFG;
dcbx_set.config.params.max_ets_tc = ets->ets_cap;
dcbx_set.config.params.ets_willing = ets->willing;
dcbx_set.config.params.ets_cbs = ets->cbs;
memcpy(dcbx_set.config.params.ets_tc_bw_tbl, ets->tc_tx_bw,
sizeof(ets->tc_tx_bw));
memcpy(dcbx_set.config.params.ets_tc_tsa_tbl, ets->tc_tsa,
sizeof(ets->tc_tsa));
memcpy(dcbx_set.config.params.ets_pri_tc_tbl, ets->prio_tc,
sizeof(ets->prio_tc));
ptt = qed_ptt_acquire(hwfn);
if (!ptt)
return -EINVAL;
rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
qed_ptt_release(hwfn, ptt);
return rc;
}
static int
qed_dcbnl_ieee_peer_getets(struct qed_dev *cdev, struct ieee_ets *ets)
{
return qed_dcbnl_get_ieee_ets(cdev, ets, true);
}
static int
qed_dcbnl_ieee_peer_getpfc(struct qed_dev *cdev, struct ieee_pfc *pfc)
{
return qed_dcbnl_get_ieee_pfc(cdev, pfc, true);
}
static int qed_get_sf_ieee_value(u8 selector, u8 *sf_ieee)
{
switch (selector) {
case IEEE_8021QAZ_APP_SEL_ETHERTYPE:
*sf_ieee = QED_DCBX_SF_IEEE_ETHTYPE;
break;
case IEEE_8021QAZ_APP_SEL_STREAM:
*sf_ieee = QED_DCBX_SF_IEEE_TCP_PORT;
break;
case IEEE_8021QAZ_APP_SEL_DGRAM:
*sf_ieee = QED_DCBX_SF_IEEE_UDP_PORT;
break;
case IEEE_8021QAZ_APP_SEL_ANY:
*sf_ieee = QED_DCBX_SF_IEEE_TCP_UDP_PORT;
break;
default:
return -EINVAL;
}
return 0;
}
static int qed_dcbnl_ieee_getapp(struct qed_dev *cdev, struct dcb_app *app)
{
struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
struct qed_dcbx_get *dcbx_info;
struct qed_app_entry *entry;
u8 prio = 0;
u8 sf_ieee;
int i;
DP_VERBOSE(hwfn, QED_MSG_DCB, "selector = %d protocol = %d\n",
app->selector, app->protocol);
if (qed_get_sf_ieee_value(app->selector, &sf_ieee)) {
DP_INFO(cdev, "Invalid selector field value %d\n",
app->selector);
return -EINVAL;
}
dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
if (!dcbx_info)
return -EINVAL;
if (!dcbx_info->operational.ieee) {
DP_INFO(hwfn, "DCBX is not enabled/operational in IEEE mode\n");
kfree(dcbx_info);
return -EINVAL;
}
for (i = 0; i < QED_DCBX_MAX_APP_PROTOCOL; i++) {
entry = &dcbx_info->operational.params.app_entry[i];
if ((entry->sf_ieee == sf_ieee) &&
(entry->proto_id == app->protocol)) {
prio = entry->prio;
break;
}
}
if (i == QED_DCBX_MAX_APP_PROTOCOL) {
DP_ERR(cdev, "App entry (%d, %d) not found\n", app->selector,
app->protocol);
kfree(dcbx_info);
return -EINVAL;
}
app->priority = ffs(prio) - 1;
kfree(dcbx_info);
return 0;
}
static int qed_dcbnl_ieee_setapp(struct qed_dev *cdev, struct dcb_app *app)
{
struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
struct qed_dcbx_get *dcbx_info;
struct qed_dcbx_set dcbx_set;
struct qed_app_entry *entry;
struct qed_ptt *ptt;
u8 sf_ieee;
int rc, i;
DP_VERBOSE(hwfn, QED_MSG_DCB, "selector = %d protocol = %d pri = %d\n",
app->selector, app->protocol, app->priority);
if (app->priority >= QED_MAX_PFC_PRIORITIES) {
DP_INFO(hwfn, "Invalid priority %d\n", app->priority);
return -EINVAL;
}
if (qed_get_sf_ieee_value(app->selector, &sf_ieee)) {
DP_INFO(cdev, "Invalid selector field value %d\n",
app->selector);
return -EINVAL;
}
dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
if (!dcbx_info)
return -EINVAL;
if (!dcbx_info->operational.ieee) {
DP_INFO(hwfn, "DCBX is not enabled/operational in IEEE mode\n");
kfree(dcbx_info);
return -EINVAL;
}
kfree(dcbx_info);
memset(&dcbx_set, 0, sizeof(dcbx_set));
rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
if (rc)
return -EINVAL;
for (i = 0; i < QED_DCBX_MAX_APP_PROTOCOL; i++) {
entry = &dcbx_set.config.params.app_entry[i];
if ((entry->sf_ieee == sf_ieee) &&
(entry->proto_id == app->protocol))
break;
/* First empty slot */
if (!entry->proto_id) {
dcbx_set.config.params.num_app_entries++;
break;
}
}
if (i == QED_DCBX_MAX_APP_PROTOCOL) {
DP_ERR(cdev, "App table is full\n");
return -EBUSY;
}
dcbx_set.override_flags |= QED_DCBX_OVERRIDE_APP_CFG;
dcbx_set.config.params.app_entry[i].sf_ieee = sf_ieee;
dcbx_set.config.params.app_entry[i].proto_id = app->protocol;
dcbx_set.config.params.app_entry[i].prio = BIT(app->priority);
ptt = qed_ptt_acquire(hwfn);
if (!ptt)
return -EBUSY;
rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
qed_ptt_release(hwfn, ptt);
return rc;
}
const struct qed_eth_dcbnl_ops qed_dcbnl_ops_pass = {
.getstate = qed_dcbnl_getstate,
.setstate = qed_dcbnl_setstate,
.getpgtccfgtx = qed_dcbnl_getpgtccfgtx,
.getpgbwgcfgtx = qed_dcbnl_getpgbwgcfgtx,
.getpgtccfgrx = qed_dcbnl_getpgtccfgrx,
.getpgbwgcfgrx = qed_dcbnl_getpgbwgcfgrx,
.getpfccfg = qed_dcbnl_getpfccfg,
.setpfccfg = qed_dcbnl_setpfccfg,
.getcap = qed_dcbnl_getcap,
.getnumtcs = qed_dcbnl_getnumtcs,
.getpfcstate = qed_dcbnl_getpfcstate,
.getdcbx = qed_dcbnl_getdcbx,
.setpgtccfgtx = qed_dcbnl_setpgtccfgtx,
.setpgtccfgrx = qed_dcbnl_setpgtccfgrx,
.setpgbwgcfgtx = qed_dcbnl_setpgbwgcfgtx,
.setpgbwgcfgrx = qed_dcbnl_setpgbwgcfgrx,
.setall = qed_dcbnl_setall,
.setnumtcs = qed_dcbnl_setnumtcs,
.setpfcstate = qed_dcbnl_setpfcstate,
.setapp = qed_dcbnl_setapp,
.setdcbx = qed_dcbnl_setdcbx,
.setfeatcfg = qed_dcbnl_setfeatcfg,
.getfeatcfg = qed_dcbnl_getfeatcfg,
.getapp = qed_dcbnl_getapp,
.peer_getappinfo = qed_dcbnl_peer_getappinfo,
.peer_getapptable = qed_dcbnl_peer_getapptable,
.cee_peer_getpfc = qed_dcbnl_cee_peer_getpfc,
.cee_peer_getpg = qed_dcbnl_cee_peer_getpg,
.ieee_getpfc = qed_dcbnl_ieee_getpfc,
.ieee_setpfc = qed_dcbnl_ieee_setpfc,
.ieee_getets = qed_dcbnl_ieee_getets,
.ieee_setets = qed_dcbnl_ieee_setets,
.ieee_peer_getpfc = qed_dcbnl_ieee_peer_getpfc,
.ieee_peer_getets = qed_dcbnl_ieee_peer_getets,
.ieee_getapp = qed_dcbnl_ieee_getapp,
.ieee_setapp = qed_dcbnl_ieee_setapp,
};
#endif
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