/* $NetBSD: ixgbe_dcb.c,v 1.9.4.2 2022/01/30 15:58:28 martin Exp $ */
/******************************************************************************
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/*$FreeBSD: head/sys/dev/ixgbe/ixgbe_dcb.c 331224 2018-03-19 20:55:05Z erj $*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: ixgbe_dcb.c,v 1.9.4.2 2022/01/30 15:58:28 martin Exp $");
#include "ixgbe_type.h"
#include "ixgbe_dcb.h"
#include "ixgbe_dcb_82598.h"
#include "ixgbe_dcb_82599.h"
/**
* ixgbe_dcb_calculate_tc_credits - This calculates the ieee traffic class
* credits from the configured bandwidth percentages. Credits
* are the smallest unit programmable into the underlying
* hardware. The IEEE 802.1Qaz specification do not use bandwidth
* groups so this is much simplified from the CEE case.
* @bw: bandwidth index by traffic class
* @refill: refill credits index by traffic class
* @max: max credits by traffic class
* @max_frame_size: maximum frame size
*/
s32 ixgbe_dcb_calculate_tc_credits(u8 *bw, u16 *refill, u16 *max,
int max_frame_size)
{
int min_percent = 100;
int min_credit, multiplier;
int i;
min_credit = ((max_frame_size / 2) + IXGBE_DCB_CREDIT_QUANTUM - 1) /
IXGBE_DCB_CREDIT_QUANTUM;
for (i = 0; i < IXGBE_DCB_MAX_TRAFFIC_CLASS; i++) {
if (bw[i] < min_percent && bw[i])
min_percent = bw[i];
}
multiplier = (min_credit / min_percent) + 1;
/* Find out the hw credits for each TC */
for (i = 0; i < IXGBE_DCB_MAX_TRAFFIC_CLASS; i++) {
int val = uimin(bw[i] * multiplier, IXGBE_DCB_MAX_CREDIT_REFILL);
if (val < min_credit)
val = min_credit;
refill[i] = (u16)val;
max[i] = bw[i] ? (bw[i]*IXGBE_DCB_MAX_CREDIT)/100 : min_credit;
}
return 0;
}
/**
* ixgbe_dcb_calculate_tc_credits_cee - Calculates traffic class credits
* @hw: pointer to hardware structure
* @dcb_config: Struct containing DCB settings
* @max_frame_size: Maximum frame size
* @direction: Configuring either Tx or Rx
*
* This function calculates the credits allocated to each traffic class.
* It should be called only after the rules are checked by
* ixgbe_dcb_check_config_cee().
*/
s32 ixgbe_dcb_calculate_tc_credits_cee(struct ixgbe_hw *hw,
struct ixgbe_dcb_config *dcb_config,
u32 max_frame_size, u8 direction)
{
struct ixgbe_dcb_tc_path *p;
u32 min_multiplier = 0;
u16 min_percent = 100;
s32 ret_val = IXGBE_SUCCESS;
/* Initialization values default for Tx settings */
u32 min_credit = 0;
u32 credit_refill = 0;
u32 credit_max = 0;
u16 link_percentage = 0;
u8 bw_percent = 0;
u8 i;
if (dcb_config == NULL) {
ret_val = IXGBE_ERR_CONFIG;
goto out;
}
min_credit = ((max_frame_size / 2) + IXGBE_DCB_CREDIT_QUANTUM - 1) /
IXGBE_DCB_CREDIT_QUANTUM;
/* Find smallest link percentage */
for (i = 0; i < IXGBE_DCB_MAX_TRAFFIC_CLASS; i++) {
p = &dcb_config->tc_config[i].path[direction];
bw_percent = dcb_config->bw_percentage[direction][p->bwg_id];
link_percentage = p->bwg_percent;
link_percentage = (link_percentage * bw_percent) / 100;
if (link_percentage && link_percentage < min_percent)
min_percent = link_percentage;
}
/*
* The ratio between traffic classes will control the bandwidth
* percentages seen on the wire. To calculate this ratio we use
* a multiplier. It is required that the refill credits must be
* larger than the max frame size so here we find the smallest
* multiplier that will allow all bandwidth percentages to be
* greater than the max frame size.
*/
min_multiplier = (min_credit / min_percent) + 1;
/* Find out the link percentage for each TC first */
for (i = 0; i < IXGBE_DCB_MAX_TRAFFIC_CLASS; i++) {
p = &dcb_config->tc_config[i].path[direction];
bw_percent = dcb_config->bw_percentage[direction][p->bwg_id];
link_percentage = p->bwg_percent;
/* Must be careful of integer division for very small nums */
link_percentage = (link_percentage * bw_percent) / 100;
if (p->bwg_percent > 0 && link_percentage == 0)
link_percentage = 1;
/* Save link_percentage for reference */
p->link_percent = (u8)link_percentage;
/* Calculate credit refill ratio using multiplier */
credit_refill = uimin(link_percentage * min_multiplier,
(u32)IXGBE_DCB_MAX_CREDIT_REFILL);
/* Refill at least minimum credit */
if (credit_refill < min_credit)
credit_refill = min_credit;
p->data_credits_refill = (u16)credit_refill;
/* Calculate maximum credit for the TC */
credit_max = (link_percentage * IXGBE_DCB_MAX_CREDIT) / 100;
/*
* Adjustment based on rule checking, if the percentage
* of a TC is too small, the maximum credit may not be
* enough to send out a jumbo frame in data plane arbitration.
*/
if (credit_max < min_credit)
credit_max = min_credit;
if (direction == IXGBE_DCB_TX_CONFIG) {
/*
* Adjustment based on rule checking, if the
* percentage of a TC is too small, the maximum
* credit may not be enough to send out a TSO
* packet in descriptor plane arbitration.
*/
if (credit_max && (credit_max <
IXGBE_DCB_MIN_TSO_CREDIT)
&& (hw->mac.type == ixgbe_mac_82598EB))
credit_max = IXGBE_DCB_MIN_TSO_CREDIT;
dcb_config->tc_config[i].desc_credits_max =
(u16)credit_max;
}
p->data_credits_max = (u16)credit_max;
}
out:
return ret_val;
}
/**
* ixgbe_dcb_unpack_pfc_cee - Unpack dcb_config PFC info
* @cfg: dcb configuration to unpack into hardware consumable fields
* @map: user priority to traffic class map
* @pfc_up: u8 to store user priority PFC bitmask
*
* This unpacks the dcb configuration PFC info which is stored per
* traffic class into a 8bit user priority bitmask that can be
* consumed by hardware routines. The priority to tc map must be
* updated before calling this routine to use current up-to maps.
*/
void ixgbe_dcb_unpack_pfc_cee(struct ixgbe_dcb_config *cfg, u8 *map, u8 *pfc_up)
{
struct ixgbe_dcb_tc_config *tc_config = &cfg->tc_config[0];
int up;
/*
* If the TC for this user priority has PFC enabled then set the
* matching bit in 'pfc_up' to reflect that PFC is enabled.
*/
for (*pfc_up = 0, up = 0; up < IXGBE_DCB_MAX_USER_PRIORITY; up++) {
if (tc_config[map[up]].pfc != ixgbe_dcb_pfc_disabled)
*pfc_up |= 1 << up;
}
}
void ixgbe_dcb_unpack_refill_cee(struct ixgbe_dcb_config *cfg, int direction,
u16 *refill)
{
struct ixgbe_dcb_tc_config *tc_config = &cfg->tc_config[0];
int tc;
for (tc = 0; tc < IXGBE_DCB_MAX_TRAFFIC_CLASS; tc++)
refill[tc] = tc_config[tc].path[direction].data_credits_refill;
}
void ixgbe_dcb_unpack_max_cee(struct ixgbe_dcb_config *cfg, u16 *max)
{
struct ixgbe_dcb_tc_config *tc_config = &cfg->tc_config[0];
int tc;
for (tc = 0; tc < IXGBE_DCB_MAX_TRAFFIC_CLASS; tc++)
max[tc] = tc_config[tc].desc_credits_max;
}
void ixgbe_dcb_unpack_bwgid_cee(struct ixgbe_dcb_config *cfg, int direction,
u8 *bwgid)
{
struct ixgbe_dcb_tc_config *tc_config = &cfg->tc_config[0];
int tc;
for (tc = 0; tc < IXGBE_DCB_MAX_TRAFFIC_CLASS; tc++)
bwgid[tc] = tc_config[tc].path[direction].bwg_id;
}
void ixgbe_dcb_unpack_tsa_cee(struct ixgbe_dcb_config *cfg, int direction,
u8 *tsa)
{
struct ixgbe_dcb_tc_config *tc_config = &cfg->tc_config[0];
int tc;
for (tc = 0; tc < IXGBE_DCB_MAX_TRAFFIC_CLASS; tc++)
tsa[tc] = tc_config[tc].path[direction].tsa;
}
u8 ixgbe_dcb_get_tc_from_up(struct ixgbe_dcb_config *cfg, int direction, u8 up)
{
struct ixgbe_dcb_tc_config *tc_config = &cfg->tc_config[0];
u8 prio_mask = 1 << up;
u8 tc = cfg->num_tcs.pg_tcs;
/* If tc is 0 then DCB is likely not enabled or supported */
if (!tc)
goto out;
/*
* Test from maximum TC to 1 and report the first match we find. If
* we find no match we can assume that the TC is 0 since the TC must
* be set for all user priorities
*/
for (tc--; tc; tc--) {
if (prio_mask & tc_config[tc].path[direction].up_to_tc_bitmap)
break;
}
out:
return tc;
}
void ixgbe_dcb_unpack_map_cee(struct ixgbe_dcb_config *cfg, int direction,
u8 *map)
{
u8 up;
for (up = 0; up < IXGBE_DCB_MAX_USER_PRIORITY; up++)
map[up] = ixgbe_dcb_get_tc_from_up(cfg, direction, up);
}
/**
* ixgbe_dcb_config - Struct containing DCB settings.
* @dcb_config: Pointer to DCB config structure
*
* This function checks DCB rules for DCB settings.
* The following rules are checked:
* 1. The sum of bandwidth percentages of all Bandwidth Groups must total 100%.
* 2. The sum of bandwidth percentages of all Traffic Classes within a Bandwidth
* Group must total 100.
* 3. A Traffic Class should not be set to both Link Strict Priority
* and Group Strict Priority.
* 4. Link strict Bandwidth Groups can only have link strict traffic classes
* with zero bandwidth.
*/
s32 ixgbe_dcb_check_config_cee(struct ixgbe_dcb_config *dcb_config)
{
struct ixgbe_dcb_tc_path *p;
s32 ret_val = IXGBE_SUCCESS;
u8 i, j, bw = 0, bw_id;
u8 bw_sum[2][IXGBE_DCB_MAX_BW_GROUP];
bool link_strict[2][IXGBE_DCB_MAX_BW_GROUP];
memset(bw_sum, 0, sizeof(bw_sum));
memset(link_strict, 0, sizeof(link_strict));
/* First Tx, then Rx */
for (i = 0; i < 2; i++) {
/* Check each traffic class for rule violation */
for (j = 0; j < IXGBE_DCB_MAX_TRAFFIC_CLASS; j++) {
p = &dcb_config->tc_config[j].path[i];
bw = p->bwg_percent;
bw_id = p->bwg_id;
if (bw_id >= IXGBE_DCB_MAX_BW_GROUP) {
ret_val = IXGBE_ERR_CONFIG;
goto err_config;
}
if (p->tsa == ixgbe_dcb_tsa_strict) {
link_strict[i][bw_id] = TRUE;
/* Link strict should have zero bandwidth */
if (bw) {
ret_val = IXGBE_ERR_CONFIG;
goto err_config;
}
} else if (!bw) {
/*
* Traffic classes without link strict
* should have non-zero bandwidth.
*/
ret_val = IXGBE_ERR_CONFIG;
goto err_config;
}
bw_sum[i][bw_id] += bw;
}
bw = 0;
/* Check each bandwidth group for rule violation */
for (j = 0; j < IXGBE_DCB_MAX_BW_GROUP; j++) {
bw += dcb_config->bw_percentage[i][j];
/*
* Sum of bandwidth percentages of all traffic classes
* within a Bandwidth Group must total 100 except for
* link strict group (zero bandwidth).
*/
if (link_strict[i][j]) {
if (bw_sum[i][j]) {
/*
* Link strict group should have zero
* bandwidth.
*/
ret_val = IXGBE_ERR_CONFIG;
goto err_config;
}
} else if (bw_sum[i][j] != IXGBE_DCB_BW_PERCENT &&
bw_sum[i][j] != 0) {
ret_val = IXGBE_ERR_CONFIG;
goto err_config;
}
}
if (bw != IXGBE_DCB_BW_PERCENT) {
ret_val = IXGBE_ERR_CONFIG;
goto err_config;
}
}
err_config:
DEBUGOUT2("DCB error code %d while checking %s settings.\n",
ret_val, (i == IXGBE_DCB_TX_CONFIG) ? "Tx" : "Rx");
return ret_val;
}
/**
* ixgbe_dcb_get_tc_stats - Returns status of each traffic class
* @hw: pointer to hardware structure
* @stats: pointer to statistics structure
* @tc_count: Number of elements in bwg_array.
*
* This function returns the status data for each of the Traffic Classes in use.
*/
s32 ixgbe_dcb_get_tc_stats(struct ixgbe_hw *hw, struct ixgbe_hw_stats *stats,
u8 tc_count)
{
s32 ret = IXGBE_NOT_IMPLEMENTED;
switch (hw->mac.type) {
case ixgbe_mac_82598EB:
ret = ixgbe_dcb_get_tc_stats_82598(hw, stats, tc_count);
break;
case ixgbe_mac_82599EB:
case ixgbe_mac_X540:
case ixgbe_mac_X550:
case ixgbe_mac_X550EM_x:
case ixgbe_mac_X550EM_a:
#if !defined(NO_82599_SUPPORT) || !defined(NO_X540_SUPPORT)
ret = ixgbe_dcb_get_tc_stats_82599(hw, stats, tc_count);
break;
#endif
default:
break;
}
return ret;
}
/**
* ixgbe_dcb_get_pfc_stats - Returns CBFC status of each traffic class
* @hw: pointer to hardware structure
* @stats: pointer to statistics structure
* @tc_count: Number of elements in bwg_array.
*
* This function returns the CBFC status data for each of the Traffic Classes.
*/
s32 ixgbe_dcb_get_pfc_stats(struct ixgbe_hw *hw, struct ixgbe_hw_stats *stats,
u8 tc_count)
{
s32 ret = IXGBE_NOT_IMPLEMENTED;
switch (hw->mac.type) {
case ixgbe_mac_82598EB:
ret = ixgbe_dcb_get_pfc_stats_82598(hw, stats, tc_count);
break;
case ixgbe_mac_82599EB:
case ixgbe_mac_X540:
case ixgbe_mac_X550:
case ixgbe_mac_X550EM_x:
case ixgbe_mac_X550EM_a:
#if !defined(NO_82599_SUPPORT) || !defined(NO_X540_SUPPORT)
ret = ixgbe_dcb_get_pfc_stats_82599(hw, stats, tc_count);
break;
#endif
default:
break;
}
return ret;
}
/**
* ixgbe_dcb_config_rx_arbiter_cee - Config Rx arbiter
* @hw: pointer to hardware structure
* @dcb_config: pointer to ixgbe_dcb_config structure
*
* Configure Rx Data Arbiter and credits for each traffic class.
*/
s32 ixgbe_dcb_config_rx_arbiter_cee(struct ixgbe_hw *hw,
struct ixgbe_dcb_config *dcb_config)
{
s32 ret = IXGBE_NOT_IMPLEMENTED;
u8 tsa[IXGBE_DCB_MAX_TRAFFIC_CLASS] = { 0 };
u8 bwgid[IXGBE_DCB_MAX_TRAFFIC_CLASS] = { 0 };
u8 map[IXGBE_DCB_MAX_USER_PRIORITY] = { 0 };
u16 refill[IXGBE_DCB_MAX_TRAFFIC_CLASS] = { 0 };
u16 max[IXGBE_DCB_MAX_TRAFFIC_CLASS] = { 0 };
ixgbe_dcb_unpack_refill_cee(dcb_config, IXGBE_DCB_TX_CONFIG, refill);
ixgbe_dcb_unpack_max_cee(dcb_config, max);
ixgbe_dcb_unpack_bwgid_cee(dcb_config, IXGBE_DCB_TX_CONFIG, bwgid);
ixgbe_dcb_unpack_tsa_cee(dcb_config, IXGBE_DCB_TX_CONFIG, tsa);
ixgbe_dcb_unpack_map_cee(dcb_config, IXGBE_DCB_TX_CONFIG, map);
switch (hw->mac.type) {
case ixgbe_mac_82598EB:
ret = ixgbe_dcb_config_rx_arbiter_82598(hw, refill, max, tsa);
break;
case ixgbe_mac_82599EB:
case ixgbe_mac_X540:
case ixgbe_mac_X550:
case ixgbe_mac_X550EM_x:
case ixgbe_mac_X550EM_a:
#if !defined(NO_82599_SUPPORT) || !defined(NO_X540_SUPPORT)
ret = ixgbe_dcb_config_rx_arbiter_82599(hw, refill, max, bwgid,
tsa, map);
break;
#endif
default:
break;
}
return ret;
}
/**
* ixgbe_dcb_config_tx_desc_arbiter_cee - Config Tx Desc arbiter
* @hw: pointer to hardware structure
* @dcb_config: pointer to ixgbe_dcb_config structure
*
* Configure Tx Descriptor Arbiter and credits for each traffic class.
*/
s32 ixgbe_dcb_config_tx_desc_arbiter_cee(struct ixgbe_hw *hw,
struct ixgbe_dcb_config *dcb_config)
{
s32 ret = IXGBE_NOT_IMPLEMENTED;
u8 tsa[IXGBE_DCB_MAX_TRAFFIC_CLASS];
u8 bwgid[IXGBE_DCB_MAX_TRAFFIC_CLASS];
u16 refill[IXGBE_DCB_MAX_TRAFFIC_CLASS];
u16 max[IXGBE_DCB_MAX_TRAFFIC_CLASS];
ixgbe_dcb_unpack_refill_cee(dcb_config, IXGBE_DCB_TX_CONFIG, refill);
ixgbe_dcb_unpack_max_cee(dcb_config, max);
ixgbe_dcb_unpack_bwgid_cee(dcb_config, IXGBE_DCB_TX_CONFIG, bwgid);
ixgbe_dcb_unpack_tsa_cee(dcb_config, IXGBE_DCB_TX_CONFIG, tsa);
switch (hw->mac.type) {
case ixgbe_mac_82598EB:
ret = ixgbe_dcb_config_tx_desc_arbiter_82598(hw, refill, max,
bwgid, tsa);
break;
case ixgbe_mac_82599EB:
case ixgbe_mac_X540:
case ixgbe_mac_X550:
case ixgbe_mac_X550EM_x:
case ixgbe_mac_X550EM_a:
#if !defined(NO_82599_SUPPORT) || !defined(NO_X540_SUPPORT)
ret = ixgbe_dcb_config_tx_desc_arbiter_82599(hw, refill, max,
bwgid, tsa);
break;
#endif
default:
break;
}
return ret;
}
/**
* ixgbe_dcb_config_tx_data_arbiter_cee - Config Tx data arbiter
* @hw: pointer to hardware structure
* @dcb_config: pointer to ixgbe_dcb_config structure
*
* Configure Tx Data Arbiter and credits for each traffic class.
*/
s32 ixgbe_dcb_config_tx_data_arbiter_cee(struct ixgbe_hw *hw,
struct ixgbe_dcb_config *dcb_config)
{
s32 ret = IXGBE_NOT_IMPLEMENTED;
u8 tsa[IXGBE_DCB_MAX_TRAFFIC_CLASS];
u8 bwgid[IXGBE_DCB_MAX_TRAFFIC_CLASS];
u8 map[IXGBE_DCB_MAX_USER_PRIORITY] = { 0 };
u16 refill[IXGBE_DCB_MAX_TRAFFIC_CLASS];
u16 max[IXGBE_DCB_MAX_TRAFFIC_CLASS];
ixgbe_dcb_unpack_refill_cee(dcb_config, IXGBE_DCB_TX_CONFIG, refill);
ixgbe_dcb_unpack_max_cee(dcb_config, max);
ixgbe_dcb_unpack_bwgid_cee(dcb_config, IXGBE_DCB_TX_CONFIG, bwgid);
ixgbe_dcb_unpack_tsa_cee(dcb_config, IXGBE_DCB_TX_CONFIG, tsa);
ixgbe_dcb_unpack_map_cee(dcb_config, IXGBE_DCB_TX_CONFIG, map);
switch (hw->mac.type) {
case ixgbe_mac_82598EB:
ret = ixgbe_dcb_config_tx_data_arbiter_82598(hw, refill, max,
bwgid, tsa);
break;
case ixgbe_mac_82599EB:
case ixgbe_mac_X540:
case ixgbe_mac_X550:
case ixgbe_mac_X550EM_x:
case ixgbe_mac_X550EM_a:
#if !defined(NO_82599_SUPPORT) || !defined(NO_X540_SUPPORT)
ret = ixgbe_dcb_config_tx_data_arbiter_82599(hw, refill, max,
bwgid, tsa,
map);
break;
#endif
default:
break;
}
return ret;
}
/**
* ixgbe_dcb_config_pfc_cee - Config priority flow control
* @hw: pointer to hardware structure
* @dcb_config: pointer to ixgbe_dcb_config structure
*
* Configure Priority Flow Control for each traffic class.
*/
s32 ixgbe_dcb_config_pfc_cee(struct ixgbe_hw *hw,
struct ixgbe_dcb_config *dcb_config)
{
s32 ret = IXGBE_NOT_IMPLEMENTED;
u8 pfc_en;
u8 map[IXGBE_DCB_MAX_USER_PRIORITY] = { 0 };
ixgbe_dcb_unpack_map_cee(dcb_config, IXGBE_DCB_TX_CONFIG, map);
ixgbe_dcb_unpack_pfc_cee(dcb_config, map, &pfc_en);
switch (hw->mac.type) {
case ixgbe_mac_82598EB:
ret = ixgbe_dcb_config_pfc_82598(hw, pfc_en);
break;
case ixgbe_mac_82599EB:
case ixgbe_mac_X540:
case ixgbe_mac_X550:
case ixgbe_mac_X550EM_x:
case ixgbe_mac_X550EM_a:
#if !defined(NO_82599_SUPPORT) || !defined(NO_X540_SUPPORT)
ret = ixgbe_dcb_config_pfc_82599(hw, pfc_en, map);
break;
#endif
default:
break;
}
return ret;
}
/**
* ixgbe_dcb_config_tc_stats - Config traffic class statistics
* @hw: pointer to hardware structure
*
* Configure queue statistics registers, all queues belonging to same traffic
* class uses a single set of queue statistics counters.
*/
s32 ixgbe_dcb_config_tc_stats(struct ixgbe_hw *hw)
{
s32 ret = IXGBE_NOT_IMPLEMENTED;
switch (hw->mac.type) {
case ixgbe_mac_82598EB:
ret = ixgbe_dcb_config_tc_stats_82598(hw);
break;
case ixgbe_mac_82599EB:
case ixgbe_mac_X540:
case ixgbe_mac_X550:
case ixgbe_mac_X550EM_x:
case ixgbe_mac_X550EM_a:
#if !defined(NO_82599_SUPPORT) || !defined(NO_X540_SUPPORT)
ret = ixgbe_dcb_config_tc_stats_82599(hw, NULL);
break;
#endif
default:
break;
}
return ret;
}
/**
* ixgbe_dcb_hw_config_cee - Config and enable DCB
* @hw: pointer to hardware structure
* @dcb_config: pointer to ixgbe_dcb_config structure
*
* Configure dcb settings and enable dcb mode.
*/
s32 ixgbe_dcb_hw_config_cee(struct ixgbe_hw *hw,
struct ixgbe_dcb_config *dcb_config)
{
s32 ret = IXGBE_NOT_IMPLEMENTED;
u8 pfc_en;
u8 tsa[IXGBE_DCB_MAX_TRAFFIC_CLASS];
u8 bwgid[IXGBE_DCB_MAX_TRAFFIC_CLASS];
u8 map[IXGBE_DCB_MAX_USER_PRIORITY] = { 0 };
u16 refill[IXGBE_DCB_MAX_TRAFFIC_CLASS];
u16 max[IXGBE_DCB_MAX_TRAFFIC_CLASS];
/* Unpack CEE standard containers */
ixgbe_dcb_unpack_refill_cee(dcb_config, IXGBE_DCB_TX_CONFIG, refill);
ixgbe_dcb_unpack_max_cee(dcb_config, max);
ixgbe_dcb_unpack_bwgid_cee(dcb_config, IXGBE_DCB_TX_CONFIG, bwgid);
ixgbe_dcb_unpack_tsa_cee(dcb_config, IXGBE_DCB_TX_CONFIG, tsa);
ixgbe_dcb_unpack_map_cee(dcb_config, IXGBE_DCB_TX_CONFIG, map);
hw->mac.ops.setup_rxpba(hw, dcb_config->num_tcs.pg_tcs,
0, dcb_config->rx_pba_cfg);
switch (hw->mac.type) {
case ixgbe_mac_82598EB:
ret = ixgbe_dcb_hw_config_82598(hw, dcb_config->link_speed,
refill, max, bwgid, tsa);
break;
case ixgbe_mac_82599EB:
case ixgbe_mac_X540:
case ixgbe_mac_X550:
case ixgbe_mac_X550EM_x:
case ixgbe_mac_X550EM_a:
#if !defined(NO_82599_SUPPORT) || !defined(NO_X540_SUPPORT)
ixgbe_dcb_config_82599(hw, dcb_config);
ret = ixgbe_dcb_hw_config_82599(hw, dcb_config->link_speed,
refill, max, bwgid,
tsa, map);
ixgbe_dcb_config_tc_stats_82599(hw, dcb_config);
break;
#endif
default:
break;
}
if (!ret && dcb_config->pfc_mode_enable) {
ixgbe_dcb_unpack_pfc_cee(dcb_config, map, &pfc_en);
ret = ixgbe_dcb_config_pfc(hw, pfc_en, map);
}
return ret;
}
/* Helper routines to abstract HW specifics from DCB netlink ops */
s32 ixgbe_dcb_config_pfc(struct ixgbe_hw *hw, u8 pfc_en, u8 *map)
{
int ret = IXGBE_ERR_PARAM;
switch (hw->mac.type) {
case ixgbe_mac_82598EB:
ret = ixgbe_dcb_config_pfc_82598(hw, pfc_en);
break;
case ixgbe_mac_82599EB:
case ixgbe_mac_X540:
case ixgbe_mac_X550:
case ixgbe_mac_X550EM_x:
case ixgbe_mac_X550EM_a:
#if !defined(NO_82599_SUPPORT) || !defined(NO_X540_SUPPORT)
ret = ixgbe_dcb_config_pfc_82599(hw, pfc_en, map);
break;
#endif
default:
break;
}
return ret;
}
s32 ixgbe_dcb_hw_config(struct ixgbe_hw *hw, u16 *refill, u16 *max,
u8 *bwg_id, u8 *tsa, u8 *map)
{
switch (hw->mac.type) {
case ixgbe_mac_82598EB:
ixgbe_dcb_config_rx_arbiter_82598(hw, refill, max, tsa);
ixgbe_dcb_config_tx_desc_arbiter_82598(hw, refill, max, bwg_id,
tsa);
ixgbe_dcb_config_tx_data_arbiter_82598(hw, refill, max, bwg_id,
tsa);
break;
case ixgbe_mac_82599EB:
case ixgbe_mac_X540:
case ixgbe_mac_X550:
case ixgbe_mac_X550EM_x:
case ixgbe_mac_X550EM_a:
#if !defined(NO_82599_SUPPORT) || !defined(NO_X540_SUPPORT)
ixgbe_dcb_config_rx_arbiter_82599(hw, refill, max, bwg_id,
tsa, map);
ixgbe_dcb_config_tx_desc_arbiter_82599(hw, refill, max, bwg_id,
tsa);
ixgbe_dcb_config_tx_data_arbiter_82599(hw, refill, max, bwg_id,
tsa, map);
break;
#endif
default:
break;
}
return 0;
}