151dce24bSJeff Kirsher // SPDX-License-Identifier: GPL-2.0
251dce24bSJeff Kirsher /* Copyright(c) 1999 - 2018 Intel Corporation. */
3dee1ad47SJeff Kirsher
4dee1ad47SJeff Kirsher #include "ixgbe.h"
5dee1ad47SJeff Kirsher #include <linux/dcbnl.h>
6dee1ad47SJeff Kirsher #include "ixgbe_dcb_82598.h"
7dee1ad47SJeff Kirsher #include "ixgbe_dcb_82599.h"
8610a63fcSJohn Fastabend #include "ixgbe_sriov.h"
9dee1ad47SJeff Kirsher
10dee1ad47SJeff Kirsher /* Callbacks for DCB netlink in the kernel */
11dee1ad47SJeff Kirsher #define BIT_PFC 0x02
12dee1ad47SJeff Kirsher #define BIT_PG_RX 0x04
13dee1ad47SJeff Kirsher #define BIT_PG_TX 0x08
14dee1ad47SJeff Kirsher #define BIT_APP_UPCHG 0x10
15dee1ad47SJeff Kirsher
16dee1ad47SJeff Kirsher /* Responses for the DCB_C_SET_ALL command */
17dee1ad47SJeff Kirsher #define DCB_HW_CHG_RST 0 /* DCB configuration changed with reset */
18dee1ad47SJeff Kirsher #define DCB_NO_HW_CHG 1 /* DCB configuration did not change */
19dee1ad47SJeff Kirsher #define DCB_HW_CHG 2 /* DCB configuration changed, no reset */
20dee1ad47SJeff Kirsher
ixgbe_copy_dcb_cfg(struct ixgbe_adapter * adapter,int tc_max)21f525c6d2SJohn Fastabend static int ixgbe_copy_dcb_cfg(struct ixgbe_adapter *adapter, int tc_max)
22dee1ad47SJeff Kirsher {
23f525c6d2SJohn Fastabend struct ixgbe_dcb_config *scfg = &adapter->temp_dcb_cfg;
24f525c6d2SJohn Fastabend struct ixgbe_dcb_config *dcfg = &adapter->dcb_cfg;
25aacc1beaSMultanen, Eric W struct tc_configuration *src = NULL;
26aacc1beaSMultanen, Eric W struct tc_configuration *dst = NULL;
27aacc1beaSMultanen, Eric W int i, j;
28aacc1beaSMultanen, Eric W int tx = DCB_TX_CONFIG;
29aacc1beaSMultanen, Eric W int rx = DCB_RX_CONFIG;
30aacc1beaSMultanen, Eric W int changes = 0;
31f525c6d2SJohn Fastabend #ifdef IXGBE_FCOE
32f525c6d2SJohn Fastabend struct dcb_app app = {
33f525c6d2SJohn Fastabend .selector = DCB_APP_IDTYPE_ETHTYPE,
34f525c6d2SJohn Fastabend .protocol = ETH_P_FCOE,
35f525c6d2SJohn Fastabend };
36f525c6d2SJohn Fastabend u8 up = dcb_getapp(adapter->netdev, &app);
37dee1ad47SJeff Kirsher
38b4f47a48SJacob Keller if (up && !(up & BIT(adapter->fcoe.up)))
39f525c6d2SJohn Fastabend changes |= BIT_APP_UPCHG;
40f525c6d2SJohn Fastabend #endif
41dee1ad47SJeff Kirsher
42dee1ad47SJeff Kirsher for (i = DCB_PG_ATTR_TC_0; i < tc_max + DCB_PG_ATTR_TC_0; i++) {
43aacc1beaSMultanen, Eric W src = &scfg->tc_config[i - DCB_PG_ATTR_TC_0];
44aacc1beaSMultanen, Eric W dst = &dcfg->tc_config[i - DCB_PG_ATTR_TC_0];
45dee1ad47SJeff Kirsher
46aacc1beaSMultanen, Eric W if (dst->path[tx].prio_type != src->path[tx].prio_type) {
47aacc1beaSMultanen, Eric W dst->path[tx].prio_type = src->path[tx].prio_type;
48aacc1beaSMultanen, Eric W changes |= BIT_PG_TX;
49aacc1beaSMultanen, Eric W }
50dee1ad47SJeff Kirsher
51aacc1beaSMultanen, Eric W if (dst->path[tx].bwg_id != src->path[tx].bwg_id) {
52aacc1beaSMultanen, Eric W dst->path[tx].bwg_id = src->path[tx].bwg_id;
53aacc1beaSMultanen, Eric W changes |= BIT_PG_TX;
54aacc1beaSMultanen, Eric W }
55dee1ad47SJeff Kirsher
56aacc1beaSMultanen, Eric W if (dst->path[tx].bwg_percent != src->path[tx].bwg_percent) {
57aacc1beaSMultanen, Eric W dst->path[tx].bwg_percent = src->path[tx].bwg_percent;
58aacc1beaSMultanen, Eric W changes |= BIT_PG_TX;
59aacc1beaSMultanen, Eric W }
60dee1ad47SJeff Kirsher
61aacc1beaSMultanen, Eric W if (dst->path[tx].up_to_tc_bitmap !=
62aacc1beaSMultanen, Eric W src->path[tx].up_to_tc_bitmap) {
63aacc1beaSMultanen, Eric W dst->path[tx].up_to_tc_bitmap =
64aacc1beaSMultanen, Eric W src->path[tx].up_to_tc_bitmap;
65aacc1beaSMultanen, Eric W changes |= (BIT_PG_TX | BIT_PFC | BIT_APP_UPCHG);
66aacc1beaSMultanen, Eric W }
67dee1ad47SJeff Kirsher
68aacc1beaSMultanen, Eric W if (dst->path[rx].prio_type != src->path[rx].prio_type) {
69aacc1beaSMultanen, Eric W dst->path[rx].prio_type = src->path[rx].prio_type;
70aacc1beaSMultanen, Eric W changes |= BIT_PG_RX;
71aacc1beaSMultanen, Eric W }
72dee1ad47SJeff Kirsher
73aacc1beaSMultanen, Eric W if (dst->path[rx].bwg_id != src->path[rx].bwg_id) {
74aacc1beaSMultanen, Eric W dst->path[rx].bwg_id = src->path[rx].bwg_id;
75aacc1beaSMultanen, Eric W changes |= BIT_PG_RX;
76aacc1beaSMultanen, Eric W }
77dee1ad47SJeff Kirsher
78aacc1beaSMultanen, Eric W if (dst->path[rx].bwg_percent != src->path[rx].bwg_percent) {
79aacc1beaSMultanen, Eric W dst->path[rx].bwg_percent = src->path[rx].bwg_percent;
80aacc1beaSMultanen, Eric W changes |= BIT_PG_RX;
81aacc1beaSMultanen, Eric W }
82dee1ad47SJeff Kirsher
83aacc1beaSMultanen, Eric W if (dst->path[rx].up_to_tc_bitmap !=
84aacc1beaSMultanen, Eric W src->path[rx].up_to_tc_bitmap) {
85aacc1beaSMultanen, Eric W dst->path[rx].up_to_tc_bitmap =
86aacc1beaSMultanen, Eric W src->path[rx].up_to_tc_bitmap;
87aacc1beaSMultanen, Eric W changes |= (BIT_PG_RX | BIT_PFC | BIT_APP_UPCHG);
88aacc1beaSMultanen, Eric W }
89dee1ad47SJeff Kirsher }
90dee1ad47SJeff Kirsher
91dee1ad47SJeff Kirsher for (i = DCB_PG_ATTR_BW_ID_0; i < DCB_PG_ATTR_BW_ID_MAX; i++) {
92aacc1beaSMultanen, Eric W j = i - DCB_PG_ATTR_BW_ID_0;
93aacc1beaSMultanen, Eric W if (dcfg->bw_percentage[tx][j] != scfg->bw_percentage[tx][j]) {
94aacc1beaSMultanen, Eric W dcfg->bw_percentage[tx][j] = scfg->bw_percentage[tx][j];
95aacc1beaSMultanen, Eric W changes |= BIT_PG_TX;
96aacc1beaSMultanen, Eric W }
97aacc1beaSMultanen, Eric W if (dcfg->bw_percentage[rx][j] != scfg->bw_percentage[rx][j]) {
98aacc1beaSMultanen, Eric W dcfg->bw_percentage[rx][j] = scfg->bw_percentage[rx][j];
99aacc1beaSMultanen, Eric W changes |= BIT_PG_RX;
100aacc1beaSMultanen, Eric W }
101dee1ad47SJeff Kirsher }
102dee1ad47SJeff Kirsher
103dee1ad47SJeff Kirsher for (i = DCB_PFC_UP_ATTR_0; i < DCB_PFC_UP_ATTR_MAX; i++) {
104aacc1beaSMultanen, Eric W j = i - DCB_PFC_UP_ATTR_0;
105aacc1beaSMultanen, Eric W if (dcfg->tc_config[j].dcb_pfc != scfg->tc_config[j].dcb_pfc) {
106aacc1beaSMultanen, Eric W dcfg->tc_config[j].dcb_pfc = scfg->tc_config[j].dcb_pfc;
107aacc1beaSMultanen, Eric W changes |= BIT_PFC;
108aacc1beaSMultanen, Eric W }
109dee1ad47SJeff Kirsher }
110dee1ad47SJeff Kirsher
111aacc1beaSMultanen, Eric W if (dcfg->pfc_mode_enable != scfg->pfc_mode_enable) {
112aacc1beaSMultanen, Eric W dcfg->pfc_mode_enable = scfg->pfc_mode_enable;
113aacc1beaSMultanen, Eric W changes |= BIT_PFC;
114aacc1beaSMultanen, Eric W }
115dee1ad47SJeff Kirsher
116aacc1beaSMultanen, Eric W return changes;
117dee1ad47SJeff Kirsher }
118dee1ad47SJeff Kirsher
ixgbe_dcbnl_get_state(struct net_device * netdev)119dee1ad47SJeff Kirsher static u8 ixgbe_dcbnl_get_state(struct net_device *netdev)
120dee1ad47SJeff Kirsher {
121dee1ad47SJeff Kirsher struct ixgbe_adapter *adapter = netdev_priv(netdev);
122dee1ad47SJeff Kirsher
123dee1ad47SJeff Kirsher return !!(adapter->flags & IXGBE_FLAG_DCB_ENABLED);
124dee1ad47SJeff Kirsher }
125dee1ad47SJeff Kirsher
ixgbe_dcbnl_set_state(struct net_device * netdev,u8 state)126dee1ad47SJeff Kirsher static u8 ixgbe_dcbnl_set_state(struct net_device *netdev, u8 state)
127dee1ad47SJeff Kirsher {
128dee1ad47SJeff Kirsher struct ixgbe_adapter *adapter = netdev_priv(netdev);
129dee1ad47SJeff Kirsher
1304c09f3a0SJohn Fastabend /* Fail command if not in CEE mode */
1314c09f3a0SJohn Fastabend if (!(adapter->dcbx_cap & DCB_CAP_DCBX_VER_CEE))
1324c09f3a0SJohn Fastabend return 1;
1334c09f3a0SJohn Fastabend
134dee1ad47SJeff Kirsher /* verify there is something to do, if not then exit */
13502debdc9SAlexander Duyck if (!state == !(adapter->flags & IXGBE_FLAG_DCB_ENABLED))
136e90dd264SMark Rustad return 0;
137dee1ad47SJeff Kirsher
138e90dd264SMark Rustad return !!ixgbe_setup_tc(netdev,
13902debdc9SAlexander Duyck state ? adapter->dcb_cfg.num_tcs.pg_tcs : 0);
140dee1ad47SJeff Kirsher }
141dee1ad47SJeff Kirsher
ixgbe_dcbnl_get_perm_hw_addr(struct net_device * netdev,u8 * perm_addr)142dee1ad47SJeff Kirsher static void ixgbe_dcbnl_get_perm_hw_addr(struct net_device *netdev,
143dee1ad47SJeff Kirsher u8 *perm_addr)
144dee1ad47SJeff Kirsher {
145dee1ad47SJeff Kirsher struct ixgbe_adapter *adapter = netdev_priv(netdev);
146dee1ad47SJeff Kirsher int i, j;
147dee1ad47SJeff Kirsher
148dee1ad47SJeff Kirsher memset(perm_addr, 0xff, MAX_ADDR_LEN);
149dee1ad47SJeff Kirsher
150dee1ad47SJeff Kirsher for (i = 0; i < netdev->addr_len; i++)
151dee1ad47SJeff Kirsher perm_addr[i] = adapter->hw.mac.perm_addr[i];
152dee1ad47SJeff Kirsher
153dee1ad47SJeff Kirsher switch (adapter->hw.mac.type) {
154dee1ad47SJeff Kirsher case ixgbe_mac_82599EB:
155dee1ad47SJeff Kirsher case ixgbe_mac_X540:
1569a75a1acSDon Skidmore case ixgbe_mac_X550:
157dee1ad47SJeff Kirsher for (j = 0; j < netdev->addr_len; j++, i++)
158dee1ad47SJeff Kirsher perm_addr[i] = adapter->hw.mac.san_addr[j];
159dee1ad47SJeff Kirsher break;
160dee1ad47SJeff Kirsher default:
161dee1ad47SJeff Kirsher break;
162dee1ad47SJeff Kirsher }
163dee1ad47SJeff Kirsher }
164dee1ad47SJeff Kirsher
ixgbe_dcbnl_set_pg_tc_cfg_tx(struct net_device * netdev,int tc,u8 prio,u8 bwg_id,u8 bw_pct,u8 up_map)165dee1ad47SJeff Kirsher static void ixgbe_dcbnl_set_pg_tc_cfg_tx(struct net_device *netdev, int tc,
166dee1ad47SJeff Kirsher u8 prio, u8 bwg_id, u8 bw_pct,
167dee1ad47SJeff Kirsher u8 up_map)
168dee1ad47SJeff Kirsher {
169dee1ad47SJeff Kirsher struct ixgbe_adapter *adapter = netdev_priv(netdev);
170dee1ad47SJeff Kirsher
171dee1ad47SJeff Kirsher if (prio != DCB_ATTR_VALUE_UNDEFINED)
172dee1ad47SJeff Kirsher adapter->temp_dcb_cfg.tc_config[tc].path[0].prio_type = prio;
173dee1ad47SJeff Kirsher if (bwg_id != DCB_ATTR_VALUE_UNDEFINED)
174dee1ad47SJeff Kirsher adapter->temp_dcb_cfg.tc_config[tc].path[0].bwg_id = bwg_id;
175dee1ad47SJeff Kirsher if (bw_pct != DCB_ATTR_VALUE_UNDEFINED)
176dee1ad47SJeff Kirsher adapter->temp_dcb_cfg.tc_config[tc].path[0].bwg_percent =
177dee1ad47SJeff Kirsher bw_pct;
178dee1ad47SJeff Kirsher if (up_map != DCB_ATTR_VALUE_UNDEFINED)
179dee1ad47SJeff Kirsher adapter->temp_dcb_cfg.tc_config[tc].path[0].up_to_tc_bitmap =
180dee1ad47SJeff Kirsher up_map;
181dee1ad47SJeff Kirsher }
182dee1ad47SJeff Kirsher
ixgbe_dcbnl_set_pg_bwg_cfg_tx(struct net_device * netdev,int bwg_id,u8 bw_pct)183dee1ad47SJeff Kirsher static void ixgbe_dcbnl_set_pg_bwg_cfg_tx(struct net_device *netdev, int bwg_id,
184dee1ad47SJeff Kirsher u8 bw_pct)
185dee1ad47SJeff Kirsher {
186dee1ad47SJeff Kirsher struct ixgbe_adapter *adapter = netdev_priv(netdev);
187dee1ad47SJeff Kirsher
188dee1ad47SJeff Kirsher adapter->temp_dcb_cfg.bw_percentage[0][bwg_id] = bw_pct;
189dee1ad47SJeff Kirsher }
190dee1ad47SJeff Kirsher
ixgbe_dcbnl_set_pg_tc_cfg_rx(struct net_device * netdev,int tc,u8 prio,u8 bwg_id,u8 bw_pct,u8 up_map)191dee1ad47SJeff Kirsher static void ixgbe_dcbnl_set_pg_tc_cfg_rx(struct net_device *netdev, int tc,
192dee1ad47SJeff Kirsher u8 prio, u8 bwg_id, u8 bw_pct,
193dee1ad47SJeff Kirsher u8 up_map)
194dee1ad47SJeff Kirsher {
195dee1ad47SJeff Kirsher struct ixgbe_adapter *adapter = netdev_priv(netdev);
196dee1ad47SJeff Kirsher
197dee1ad47SJeff Kirsher if (prio != DCB_ATTR_VALUE_UNDEFINED)
198dee1ad47SJeff Kirsher adapter->temp_dcb_cfg.tc_config[tc].path[1].prio_type = prio;
199dee1ad47SJeff Kirsher if (bwg_id != DCB_ATTR_VALUE_UNDEFINED)
200dee1ad47SJeff Kirsher adapter->temp_dcb_cfg.tc_config[tc].path[1].bwg_id = bwg_id;
201dee1ad47SJeff Kirsher if (bw_pct != DCB_ATTR_VALUE_UNDEFINED)
202dee1ad47SJeff Kirsher adapter->temp_dcb_cfg.tc_config[tc].path[1].bwg_percent =
203dee1ad47SJeff Kirsher bw_pct;
204dee1ad47SJeff Kirsher if (up_map != DCB_ATTR_VALUE_UNDEFINED)
205dee1ad47SJeff Kirsher adapter->temp_dcb_cfg.tc_config[tc].path[1].up_to_tc_bitmap =
206dee1ad47SJeff Kirsher up_map;
207dee1ad47SJeff Kirsher }
208dee1ad47SJeff Kirsher
ixgbe_dcbnl_set_pg_bwg_cfg_rx(struct net_device * netdev,int bwg_id,u8 bw_pct)209dee1ad47SJeff Kirsher static void ixgbe_dcbnl_set_pg_bwg_cfg_rx(struct net_device *netdev, int bwg_id,
210dee1ad47SJeff Kirsher u8 bw_pct)
211dee1ad47SJeff Kirsher {
212dee1ad47SJeff Kirsher struct ixgbe_adapter *adapter = netdev_priv(netdev);
213dee1ad47SJeff Kirsher
214dee1ad47SJeff Kirsher adapter->temp_dcb_cfg.bw_percentage[1][bwg_id] = bw_pct;
215dee1ad47SJeff Kirsher }
216dee1ad47SJeff Kirsher
ixgbe_dcbnl_get_pg_tc_cfg_tx(struct net_device * netdev,int tc,u8 * prio,u8 * bwg_id,u8 * bw_pct,u8 * up_map)217dee1ad47SJeff Kirsher static void ixgbe_dcbnl_get_pg_tc_cfg_tx(struct net_device *netdev, int tc,
218dee1ad47SJeff Kirsher u8 *prio, u8 *bwg_id, u8 *bw_pct,
219dee1ad47SJeff Kirsher u8 *up_map)
220dee1ad47SJeff Kirsher {
221dee1ad47SJeff Kirsher struct ixgbe_adapter *adapter = netdev_priv(netdev);
222dee1ad47SJeff Kirsher
223dee1ad47SJeff Kirsher *prio = adapter->dcb_cfg.tc_config[tc].path[0].prio_type;
224dee1ad47SJeff Kirsher *bwg_id = adapter->dcb_cfg.tc_config[tc].path[0].bwg_id;
225dee1ad47SJeff Kirsher *bw_pct = adapter->dcb_cfg.tc_config[tc].path[0].bwg_percent;
226dee1ad47SJeff Kirsher *up_map = adapter->dcb_cfg.tc_config[tc].path[0].up_to_tc_bitmap;
227dee1ad47SJeff Kirsher }
228dee1ad47SJeff Kirsher
ixgbe_dcbnl_get_pg_bwg_cfg_tx(struct net_device * netdev,int bwg_id,u8 * bw_pct)229dee1ad47SJeff Kirsher static void ixgbe_dcbnl_get_pg_bwg_cfg_tx(struct net_device *netdev, int bwg_id,
230dee1ad47SJeff Kirsher u8 *bw_pct)
231dee1ad47SJeff Kirsher {
232dee1ad47SJeff Kirsher struct ixgbe_adapter *adapter = netdev_priv(netdev);
233dee1ad47SJeff Kirsher
234dee1ad47SJeff Kirsher *bw_pct = adapter->dcb_cfg.bw_percentage[0][bwg_id];
235dee1ad47SJeff Kirsher }
236dee1ad47SJeff Kirsher
ixgbe_dcbnl_get_pg_tc_cfg_rx(struct net_device * netdev,int tc,u8 * prio,u8 * bwg_id,u8 * bw_pct,u8 * up_map)237dee1ad47SJeff Kirsher static void ixgbe_dcbnl_get_pg_tc_cfg_rx(struct net_device *netdev, int tc,
238dee1ad47SJeff Kirsher u8 *prio, u8 *bwg_id, u8 *bw_pct,
239dee1ad47SJeff Kirsher u8 *up_map)
240dee1ad47SJeff Kirsher {
241dee1ad47SJeff Kirsher struct ixgbe_adapter *adapter = netdev_priv(netdev);
242dee1ad47SJeff Kirsher
243dee1ad47SJeff Kirsher *prio = adapter->dcb_cfg.tc_config[tc].path[1].prio_type;
244dee1ad47SJeff Kirsher *bwg_id = adapter->dcb_cfg.tc_config[tc].path[1].bwg_id;
245dee1ad47SJeff Kirsher *bw_pct = adapter->dcb_cfg.tc_config[tc].path[1].bwg_percent;
246dee1ad47SJeff Kirsher *up_map = adapter->dcb_cfg.tc_config[tc].path[1].up_to_tc_bitmap;
247dee1ad47SJeff Kirsher }
248dee1ad47SJeff Kirsher
ixgbe_dcbnl_get_pg_bwg_cfg_rx(struct net_device * netdev,int bwg_id,u8 * bw_pct)249dee1ad47SJeff Kirsher static void ixgbe_dcbnl_get_pg_bwg_cfg_rx(struct net_device *netdev, int bwg_id,
250dee1ad47SJeff Kirsher u8 *bw_pct)
251dee1ad47SJeff Kirsher {
252dee1ad47SJeff Kirsher struct ixgbe_adapter *adapter = netdev_priv(netdev);
253dee1ad47SJeff Kirsher
254dee1ad47SJeff Kirsher *bw_pct = adapter->dcb_cfg.bw_percentage[1][bwg_id];
255dee1ad47SJeff Kirsher }
256dee1ad47SJeff Kirsher
ixgbe_dcbnl_set_pfc_cfg(struct net_device * netdev,int priority,u8 setting)257dee1ad47SJeff Kirsher static void ixgbe_dcbnl_set_pfc_cfg(struct net_device *netdev, int priority,
258dee1ad47SJeff Kirsher u8 setting)
259dee1ad47SJeff Kirsher {
260dee1ad47SJeff Kirsher struct ixgbe_adapter *adapter = netdev_priv(netdev);
261dee1ad47SJeff Kirsher
262dee1ad47SJeff Kirsher adapter->temp_dcb_cfg.tc_config[priority].dcb_pfc = setting;
263dee1ad47SJeff Kirsher if (adapter->temp_dcb_cfg.tc_config[priority].dcb_pfc !=
264aacc1beaSMultanen, Eric W adapter->dcb_cfg.tc_config[priority].dcb_pfc)
265dee1ad47SJeff Kirsher adapter->temp_dcb_cfg.pfc_mode_enable = true;
266dee1ad47SJeff Kirsher }
267dee1ad47SJeff Kirsher
ixgbe_dcbnl_get_pfc_cfg(struct net_device * netdev,int priority,u8 * setting)268dee1ad47SJeff Kirsher static void ixgbe_dcbnl_get_pfc_cfg(struct net_device *netdev, int priority,
269dee1ad47SJeff Kirsher u8 *setting)
270dee1ad47SJeff Kirsher {
271dee1ad47SJeff Kirsher struct ixgbe_adapter *adapter = netdev_priv(netdev);
272dee1ad47SJeff Kirsher
273dee1ad47SJeff Kirsher *setting = adapter->dcb_cfg.tc_config[priority].dcb_pfc;
274dee1ad47SJeff Kirsher }
275dee1ad47SJeff Kirsher
ixgbe_dcbnl_devreset(struct net_device * dev)2764909fe97SJohn Fastabend static void ixgbe_dcbnl_devreset(struct net_device *dev)
2774909fe97SJohn Fastabend {
2784909fe97SJohn Fastabend struct ixgbe_adapter *adapter = netdev_priv(dev);
2794909fe97SJohn Fastabend
2804909fe97SJohn Fastabend while (test_and_set_bit(__IXGBE_RESETTING, &adapter->state))
2814909fe97SJohn Fastabend usleep_range(1000, 2000);
2824909fe97SJohn Fastabend
2834909fe97SJohn Fastabend if (netif_running(dev))
2844909fe97SJohn Fastabend dev->netdev_ops->ndo_stop(dev);
2854909fe97SJohn Fastabend
2864909fe97SJohn Fastabend ixgbe_clear_interrupt_scheme(adapter);
2874909fe97SJohn Fastabend ixgbe_init_interrupt_scheme(adapter);
2884909fe97SJohn Fastabend
2894909fe97SJohn Fastabend if (netif_running(dev))
2904909fe97SJohn Fastabend dev->netdev_ops->ndo_open(dev);
2914909fe97SJohn Fastabend
2924909fe97SJohn Fastabend clear_bit(__IXGBE_RESETTING, &adapter->state);
2934909fe97SJohn Fastabend }
2944909fe97SJohn Fastabend
ixgbe_dcbnl_set_all(struct net_device * netdev)295dee1ad47SJeff Kirsher static u8 ixgbe_dcbnl_set_all(struct net_device *netdev)
296dee1ad47SJeff Kirsher {
297dee1ad47SJeff Kirsher struct ixgbe_adapter *adapter = netdev_priv(netdev);
298943561d3SAlexander Duyck struct ixgbe_dcb_config *dcb_cfg = &adapter->dcb_cfg;
299943561d3SAlexander Duyck struct ixgbe_hw *hw = &adapter->hw;
300aacc1beaSMultanen, Eric W int ret = DCB_NO_HW_CHG;
301aacc1beaSMultanen, Eric W int i;
302dee1ad47SJeff Kirsher
3034c09f3a0SJohn Fastabend /* Fail command if not in CEE mode */
3044c09f3a0SJohn Fastabend if (!(adapter->dcbx_cap & DCB_CAP_DCBX_VER_CEE))
305e90dd264SMark Rustad return DCB_NO_HW_CHG;
3064c09f3a0SJohn Fastabend
307f525c6d2SJohn Fastabend adapter->dcb_set_bitmap |= ixgbe_copy_dcb_cfg(adapter,
308dee1ad47SJeff Kirsher MAX_TRAFFIC_CLASS);
309aacc1beaSMultanen, Eric W if (!adapter->dcb_set_bitmap)
310e90dd264SMark Rustad return DCB_NO_HW_CHG;
311dee1ad47SJeff Kirsher
312dee1ad47SJeff Kirsher if (adapter->dcb_set_bitmap & (BIT_PG_TX|BIT_PG_RX)) {
313dee1ad47SJeff Kirsher u16 refill[MAX_TRAFFIC_CLASS], max[MAX_TRAFFIC_CLASS];
314dee1ad47SJeff Kirsher u8 bwg_id[MAX_TRAFFIC_CLASS], prio_type[MAX_TRAFFIC_CLASS];
315dee1ad47SJeff Kirsher /* Priority to TC mapping in CEE case default to 1:1 */
31632701dc2SJohn Fastabend u8 prio_tc[MAX_USER_PRIORITY];
317dee1ad47SJeff Kirsher int max_frame = adapter->netdev->mtu + ETH_HLEN + ETH_FCS_LEN;
318dee1ad47SJeff Kirsher
319971060b1SAlexander Duyck #ifdef IXGBE_FCOE
320dee1ad47SJeff Kirsher if (adapter->netdev->features & NETIF_F_FCOE_MTU)
321dee1ad47SJeff Kirsher max_frame = max(max_frame, IXGBE_FCOE_JUMBO_FRAME_SIZE);
322dee1ad47SJeff Kirsher #endif
323dee1ad47SJeff Kirsher
324943561d3SAlexander Duyck ixgbe_dcb_calculate_tc_credits(hw, dcb_cfg, max_frame,
325943561d3SAlexander Duyck DCB_TX_CONFIG);
326943561d3SAlexander Duyck ixgbe_dcb_calculate_tc_credits(hw, dcb_cfg, max_frame,
327943561d3SAlexander Duyck DCB_RX_CONFIG);
328dee1ad47SJeff Kirsher
329943561d3SAlexander Duyck ixgbe_dcb_unpack_refill(dcb_cfg, DCB_TX_CONFIG, refill);
330943561d3SAlexander Duyck ixgbe_dcb_unpack_max(dcb_cfg, max);
331943561d3SAlexander Duyck ixgbe_dcb_unpack_bwgid(dcb_cfg, DCB_TX_CONFIG, bwg_id);
332943561d3SAlexander Duyck ixgbe_dcb_unpack_prio(dcb_cfg, DCB_TX_CONFIG, prio_type);
333943561d3SAlexander Duyck ixgbe_dcb_unpack_map(dcb_cfg, DCB_TX_CONFIG, prio_tc);
334dee1ad47SJeff Kirsher
335943561d3SAlexander Duyck ixgbe_dcb_hw_ets_config(hw, refill, max, bwg_id,
336943561d3SAlexander Duyck prio_type, prio_tc);
33732701dc2SJohn Fastabend
33832701dc2SJohn Fastabend for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++)
33932701dc2SJohn Fastabend netdev_set_prio_tc_map(netdev, i, prio_tc[i]);
340aacc1beaSMultanen, Eric W
341aacc1beaSMultanen, Eric W ret = DCB_HW_CHG_RST;
34232701dc2SJohn Fastabend }
34332701dc2SJohn Fastabend
34432701dc2SJohn Fastabend if (adapter->dcb_set_bitmap & BIT_PFC) {
345943561d3SAlexander Duyck if (dcb_cfg->pfc_mode_enable) {
34632701dc2SJohn Fastabend u8 pfc_en;
34732701dc2SJohn Fastabend u8 prio_tc[MAX_USER_PRIORITY];
34832701dc2SJohn Fastabend
349943561d3SAlexander Duyck ixgbe_dcb_unpack_map(dcb_cfg, DCB_TX_CONFIG, prio_tc);
350943561d3SAlexander Duyck ixgbe_dcb_unpack_pfc(dcb_cfg, &pfc_en);
351943561d3SAlexander Duyck ixgbe_dcb_hw_pfc_config(hw, pfc_en, prio_tc);
352943561d3SAlexander Duyck } else {
353943561d3SAlexander Duyck hw->mac.ops.fc_enable(hw);
354943561d3SAlexander Duyck }
3553ebe8fdeSAlexander Duyck
3563ebe8fdeSAlexander Duyck ixgbe_set_rx_drop_en(adapter);
3573ebe8fdeSAlexander Duyck
35832701dc2SJohn Fastabend ret = DCB_HW_CHG;
359dee1ad47SJeff Kirsher }
360dee1ad47SJeff Kirsher
3614909fe97SJohn Fastabend #ifdef IXGBE_FCOE
362*ce2cb12dSBhaskar Chowdhury /* Reprogram FCoE hardware offloads when the traffic class
36343497cc2SJohn Fastabend * FCoE is using changes. This happens if the APP info
36443497cc2SJohn Fastabend * changes or the up2tc mapping is updated.
36543497cc2SJohn Fastabend */
366f525c6d2SJohn Fastabend if (adapter->dcb_set_bitmap & BIT_APP_UPCHG) {
367f525c6d2SJohn Fastabend struct dcb_app app = {
368f525c6d2SJohn Fastabend .selector = DCB_APP_IDTYPE_ETHTYPE,
369f525c6d2SJohn Fastabend .protocol = ETH_P_FCOE,
370f525c6d2SJohn Fastabend };
371f525c6d2SJohn Fastabend u8 up = dcb_getapp(netdev, &app);
372f525c6d2SJohn Fastabend
3734909fe97SJohn Fastabend adapter->fcoe.up = ffs(up) - 1;
3744909fe97SJohn Fastabend ixgbe_dcbnl_devreset(netdev);
3754909fe97SJohn Fastabend ret = DCB_HW_CHG_RST;
3764909fe97SJohn Fastabend }
3774909fe97SJohn Fastabend #endif
3784909fe97SJohn Fastabend
379dee1ad47SJeff Kirsher adapter->dcb_set_bitmap = 0x00;
380dee1ad47SJeff Kirsher return ret;
381dee1ad47SJeff Kirsher }
382dee1ad47SJeff Kirsher
ixgbe_dcbnl_getcap(struct net_device * netdev,int capid,u8 * cap)383dee1ad47SJeff Kirsher static u8 ixgbe_dcbnl_getcap(struct net_device *netdev, int capid, u8 *cap)
384dee1ad47SJeff Kirsher {
385dee1ad47SJeff Kirsher struct ixgbe_adapter *adapter = netdev_priv(netdev);
386dee1ad47SJeff Kirsher
387dee1ad47SJeff Kirsher switch (capid) {
388dee1ad47SJeff Kirsher case DCB_CAP_ATTR_PG:
389dee1ad47SJeff Kirsher *cap = true;
390dee1ad47SJeff Kirsher break;
391dee1ad47SJeff Kirsher case DCB_CAP_ATTR_PFC:
392dee1ad47SJeff Kirsher *cap = true;
393dee1ad47SJeff Kirsher break;
394dee1ad47SJeff Kirsher case DCB_CAP_ATTR_UP2TC:
395dee1ad47SJeff Kirsher *cap = false;
396dee1ad47SJeff Kirsher break;
397dee1ad47SJeff Kirsher case DCB_CAP_ATTR_PG_TCS:
398dee1ad47SJeff Kirsher *cap = 0x80;
399dee1ad47SJeff Kirsher break;
400dee1ad47SJeff Kirsher case DCB_CAP_ATTR_PFC_TCS:
401dee1ad47SJeff Kirsher *cap = 0x80;
402dee1ad47SJeff Kirsher break;
403dee1ad47SJeff Kirsher case DCB_CAP_ATTR_GSP:
404dee1ad47SJeff Kirsher *cap = true;
405dee1ad47SJeff Kirsher break;
406dee1ad47SJeff Kirsher case DCB_CAP_ATTR_BCN:
407dee1ad47SJeff Kirsher *cap = false;
408dee1ad47SJeff Kirsher break;
409dee1ad47SJeff Kirsher case DCB_CAP_ATTR_DCBX:
410dee1ad47SJeff Kirsher *cap = adapter->dcbx_cap;
411dee1ad47SJeff Kirsher break;
412dee1ad47SJeff Kirsher default:
413dee1ad47SJeff Kirsher *cap = false;
414dee1ad47SJeff Kirsher break;
415dee1ad47SJeff Kirsher }
416dee1ad47SJeff Kirsher
417dee1ad47SJeff Kirsher return 0;
418dee1ad47SJeff Kirsher }
419dee1ad47SJeff Kirsher
ixgbe_dcbnl_getnumtcs(struct net_device * netdev,int tcid,u8 * num)4202b88f2deSJohn Fastabend static int ixgbe_dcbnl_getnumtcs(struct net_device *netdev, int tcid, u8 *num)
421dee1ad47SJeff Kirsher {
422dee1ad47SJeff Kirsher struct ixgbe_adapter *adapter = netdev_priv(netdev);
423dee1ad47SJeff Kirsher
424dee1ad47SJeff Kirsher if (adapter->flags & IXGBE_FLAG_DCB_ENABLED) {
425dee1ad47SJeff Kirsher switch (tcid) {
426dee1ad47SJeff Kirsher case DCB_NUMTCS_ATTR_PG:
42732701dc2SJohn Fastabend *num = adapter->dcb_cfg.num_tcs.pg_tcs;
428dee1ad47SJeff Kirsher break;
429dee1ad47SJeff Kirsher case DCB_NUMTCS_ATTR_PFC:
43032701dc2SJohn Fastabend *num = adapter->dcb_cfg.num_tcs.pfc_tcs;
431dee1ad47SJeff Kirsher break;
432dee1ad47SJeff Kirsher default:
433d2c47b62SJosh Hay return -EINVAL;
434dee1ad47SJeff Kirsher }
435dee1ad47SJeff Kirsher } else {
436d2c47b62SJosh Hay return -EINVAL;
437dee1ad47SJeff Kirsher }
438dee1ad47SJeff Kirsher
439d2c47b62SJosh Hay return 0;
440dee1ad47SJeff Kirsher }
441dee1ad47SJeff Kirsher
ixgbe_dcbnl_setnumtcs(struct net_device * netdev,int tcid,u8 num)4422b88f2deSJohn Fastabend static int ixgbe_dcbnl_setnumtcs(struct net_device *netdev, int tcid, u8 num)
443dee1ad47SJeff Kirsher {
444dee1ad47SJeff Kirsher return -EINVAL;
445dee1ad47SJeff Kirsher }
446dee1ad47SJeff Kirsher
ixgbe_dcbnl_getpfcstate(struct net_device * netdev)447dee1ad47SJeff Kirsher static u8 ixgbe_dcbnl_getpfcstate(struct net_device *netdev)
448dee1ad47SJeff Kirsher {
449dee1ad47SJeff Kirsher struct ixgbe_adapter *adapter = netdev_priv(netdev);
450dee1ad47SJeff Kirsher
451dee1ad47SJeff Kirsher return adapter->dcb_cfg.pfc_mode_enable;
452dee1ad47SJeff Kirsher }
453dee1ad47SJeff Kirsher
ixgbe_dcbnl_setpfcstate(struct net_device * netdev,u8 state)454dee1ad47SJeff Kirsher static void ixgbe_dcbnl_setpfcstate(struct net_device *netdev, u8 state)
455dee1ad47SJeff Kirsher {
456dee1ad47SJeff Kirsher struct ixgbe_adapter *adapter = netdev_priv(netdev);
457dee1ad47SJeff Kirsher
458dee1ad47SJeff Kirsher adapter->temp_dcb_cfg.pfc_mode_enable = state;
459dee1ad47SJeff Kirsher }
460dee1ad47SJeff Kirsher
461dee1ad47SJeff Kirsher /**
462dee1ad47SJeff Kirsher * ixgbe_dcbnl_getapp - retrieve the DCBX application user priority
463dee1ad47SJeff Kirsher * @netdev : the corresponding netdev
464dee1ad47SJeff Kirsher * @idtype : identifies the id as ether type or TCP/UDP port number
465dee1ad47SJeff Kirsher * @id: id is either ether type or TCP/UDP port number
466dee1ad47SJeff Kirsher *
467dee1ad47SJeff Kirsher * Returns : on success, returns a non-zero 802.1p user priority bitmap
468c2659479SAnish Bhatt * otherwise returns -EINVAL as the invalid user priority bitmap to indicate an
469dee1ad47SJeff Kirsher * error.
470dee1ad47SJeff Kirsher */
ixgbe_dcbnl_getapp(struct net_device * netdev,u8 idtype,u16 id)471c2659479SAnish Bhatt static int ixgbe_dcbnl_getapp(struct net_device *netdev, u8 idtype, u16 id)
472dee1ad47SJeff Kirsher {
473dee1ad47SJeff Kirsher struct ixgbe_adapter *adapter = netdev_priv(netdev);
474dee1ad47SJeff Kirsher struct dcb_app app = {
475dee1ad47SJeff Kirsher .selector = idtype,
476dee1ad47SJeff Kirsher .protocol = id,
477dee1ad47SJeff Kirsher };
478dee1ad47SJeff Kirsher
479dee1ad47SJeff Kirsher if (!(adapter->dcbx_cap & DCB_CAP_DCBX_VER_CEE))
480c2659479SAnish Bhatt return -EINVAL;
481dee1ad47SJeff Kirsher
482dee1ad47SJeff Kirsher return dcb_getapp(netdev, &app);
483dee1ad47SJeff Kirsher }
484dee1ad47SJeff Kirsher
ixgbe_dcbnl_ieee_getets(struct net_device * dev,struct ieee_ets * ets)485dee1ad47SJeff Kirsher static int ixgbe_dcbnl_ieee_getets(struct net_device *dev,
486dee1ad47SJeff Kirsher struct ieee_ets *ets)
487dee1ad47SJeff Kirsher {
488dee1ad47SJeff Kirsher struct ixgbe_adapter *adapter = netdev_priv(dev);
489dee1ad47SJeff Kirsher struct ieee_ets *my_ets = adapter->ixgbe_ieee_ets;
490dee1ad47SJeff Kirsher
4918599e251SJohn Fastabend ets->ets_cap = adapter->dcb_cfg.num_tcs.pg_tcs;
4928599e251SJohn Fastabend
493dee1ad47SJeff Kirsher /* No IEEE PFC settings available */
494dee1ad47SJeff Kirsher if (!my_ets)
4958599e251SJohn Fastabend return 0;
496dee1ad47SJeff Kirsher
497dee1ad47SJeff Kirsher ets->cbs = my_ets->cbs;
498dee1ad47SJeff Kirsher memcpy(ets->tc_tx_bw, my_ets->tc_tx_bw, sizeof(ets->tc_tx_bw));
499dee1ad47SJeff Kirsher memcpy(ets->tc_rx_bw, my_ets->tc_rx_bw, sizeof(ets->tc_rx_bw));
500dee1ad47SJeff Kirsher memcpy(ets->tc_tsa, my_ets->tc_tsa, sizeof(ets->tc_tsa));
501dee1ad47SJeff Kirsher memcpy(ets->prio_tc, my_ets->prio_tc, sizeof(ets->prio_tc));
502dee1ad47SJeff Kirsher return 0;
503dee1ad47SJeff Kirsher }
504dee1ad47SJeff Kirsher
ixgbe_dcbnl_ieee_setets(struct net_device * dev,struct ieee_ets * ets)505dee1ad47SJeff Kirsher static int ixgbe_dcbnl_ieee_setets(struct net_device *dev,
506dee1ad47SJeff Kirsher struct ieee_ets *ets)
507dee1ad47SJeff Kirsher {
508dee1ad47SJeff Kirsher struct ixgbe_adapter *adapter = netdev_priv(dev);
509dee1ad47SJeff Kirsher int max_frame = dev->mtu + ETH_HLEN + ETH_FCS_LEN;
510e90dd264SMark Rustad int i, err;
5114c09f3a0SJohn Fastabend __u8 max_tc = 0;
512d1d18b30SAmir Hanania __u8 map_chg = 0;
513dee1ad47SJeff Kirsher
514dee1ad47SJeff Kirsher if (!(adapter->dcbx_cap & DCB_CAP_DCBX_VER_IEEE))
515dee1ad47SJeff Kirsher return -EINVAL;
516dee1ad47SJeff Kirsher
517dee1ad47SJeff Kirsher if (!adapter->ixgbe_ieee_ets) {
518dee1ad47SJeff Kirsher adapter->ixgbe_ieee_ets = kmalloc(sizeof(struct ieee_ets),
519dee1ad47SJeff Kirsher GFP_KERNEL);
520dee1ad47SJeff Kirsher if (!adapter->ixgbe_ieee_ets)
521dee1ad47SJeff Kirsher return -ENOMEM;
522dee1ad47SJeff Kirsher
523d1d18b30SAmir Hanania /* initialize UP2TC mappings to invalid value */
524d1d18b30SAmir Hanania for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++)
525d1d18b30SAmir Hanania adapter->ixgbe_ieee_ets->prio_tc[i] =
526d1d18b30SAmir Hanania IEEE_8021QAZ_MAX_TCS;
527e8915bebSAmir Hanania /* if possible update UP2TC mappings from HW */
528e8915bebSAmir Hanania ixgbe_dcb_read_rtrup2tc(&adapter->hw,
529e8915bebSAmir Hanania adapter->ixgbe_ieee_ets->prio_tc);
530d1d18b30SAmir Hanania }
531dee1ad47SJeff Kirsher
532dee1ad47SJeff Kirsher for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) {
5334c09f3a0SJohn Fastabend if (ets->prio_tc[i] > max_tc)
5344c09f3a0SJohn Fastabend max_tc = ets->prio_tc[i];
535d1d18b30SAmir Hanania if (ets->prio_tc[i] != adapter->ixgbe_ieee_ets->prio_tc[i])
536d1d18b30SAmir Hanania map_chg = 1;
537dee1ad47SJeff Kirsher }
538dee1ad47SJeff Kirsher
539d1d18b30SAmir Hanania memcpy(adapter->ixgbe_ieee_ets, ets, sizeof(*adapter->ixgbe_ieee_ets));
540d1d18b30SAmir Hanania
5414c09f3a0SJohn Fastabend if (max_tc)
5424c09f3a0SJohn Fastabend max_tc++;
543dee1ad47SJeff Kirsher
54432701dc2SJohn Fastabend if (max_tc > adapter->dcb_cfg.num_tcs.pg_tcs)
54532701dc2SJohn Fastabend return -EINVAL;
54632701dc2SJohn Fastabend
5470efbf12bSAlexander Duyck if (max_tc != adapter->hw_tcs) {
54889d27a3cSJohn Fastabend err = ixgbe_setup_tc(dev, max_tc);
54989d27a3cSJohn Fastabend if (err)
55089d27a3cSJohn Fastabend return err;
551e90dd264SMark Rustad } else if (map_chg) {
552e90dd264SMark Rustad ixgbe_dcbnl_devreset(dev);
553e90dd264SMark Rustad }
554e90dd264SMark Rustad
555e90dd264SMark Rustad return ixgbe_dcb_hw_ets(&adapter->hw, ets, max_frame);
556dee1ad47SJeff Kirsher }
557dee1ad47SJeff Kirsher
ixgbe_dcbnl_ieee_getpfc(struct net_device * dev,struct ieee_pfc * pfc)558dee1ad47SJeff Kirsher static int ixgbe_dcbnl_ieee_getpfc(struct net_device *dev,
559dee1ad47SJeff Kirsher struct ieee_pfc *pfc)
560dee1ad47SJeff Kirsher {
561dee1ad47SJeff Kirsher struct ixgbe_adapter *adapter = netdev_priv(dev);
562dee1ad47SJeff Kirsher struct ieee_pfc *my_pfc = adapter->ixgbe_ieee_pfc;
563dee1ad47SJeff Kirsher int i;
564dee1ad47SJeff Kirsher
5658599e251SJohn Fastabend pfc->pfc_cap = adapter->dcb_cfg.num_tcs.pfc_tcs;
5668599e251SJohn Fastabend
567dee1ad47SJeff Kirsher /* No IEEE PFC settings available */
568dee1ad47SJeff Kirsher if (!my_pfc)
5698599e251SJohn Fastabend return 0;
570dee1ad47SJeff Kirsher
571dee1ad47SJeff Kirsher pfc->pfc_en = my_pfc->pfc_en;
572dee1ad47SJeff Kirsher pfc->mbc = my_pfc->mbc;
573dee1ad47SJeff Kirsher pfc->delay = my_pfc->delay;
574dee1ad47SJeff Kirsher
575dee1ad47SJeff Kirsher for (i = 0; i < MAX_TRAFFIC_CLASS; i++) {
576dee1ad47SJeff Kirsher pfc->requests[i] = adapter->stats.pxoffrxc[i];
577dee1ad47SJeff Kirsher pfc->indications[i] = adapter->stats.pxofftxc[i];
578dee1ad47SJeff Kirsher }
579dee1ad47SJeff Kirsher
580dee1ad47SJeff Kirsher return 0;
581dee1ad47SJeff Kirsher }
582dee1ad47SJeff Kirsher
ixgbe_dcbnl_ieee_setpfc(struct net_device * dev,struct ieee_pfc * pfc)583dee1ad47SJeff Kirsher static int ixgbe_dcbnl_ieee_setpfc(struct net_device *dev,
584dee1ad47SJeff Kirsher struct ieee_pfc *pfc)
585dee1ad47SJeff Kirsher {
586dee1ad47SJeff Kirsher struct ixgbe_adapter *adapter = netdev_priv(dev);
587943561d3SAlexander Duyck struct ixgbe_hw *hw = &adapter->hw;
58832701dc2SJohn Fastabend u8 *prio_tc;
589943561d3SAlexander Duyck int err;
590dee1ad47SJeff Kirsher
591dee1ad47SJeff Kirsher if (!(adapter->dcbx_cap & DCB_CAP_DCBX_VER_IEEE))
592dee1ad47SJeff Kirsher return -EINVAL;
593dee1ad47SJeff Kirsher
594dee1ad47SJeff Kirsher if (!adapter->ixgbe_ieee_pfc) {
595dee1ad47SJeff Kirsher adapter->ixgbe_ieee_pfc = kmalloc(sizeof(struct ieee_pfc),
596dee1ad47SJeff Kirsher GFP_KERNEL);
597dee1ad47SJeff Kirsher if (!adapter->ixgbe_ieee_pfc)
598dee1ad47SJeff Kirsher return -ENOMEM;
599dee1ad47SJeff Kirsher }
600dee1ad47SJeff Kirsher
60132701dc2SJohn Fastabend prio_tc = adapter->ixgbe_ieee_ets->prio_tc;
602dee1ad47SJeff Kirsher memcpy(adapter->ixgbe_ieee_pfc, pfc, sizeof(*adapter->ixgbe_ieee_pfc));
603943561d3SAlexander Duyck
604943561d3SAlexander Duyck /* Enable link flow control parameters if PFC is disabled */
605943561d3SAlexander Duyck if (pfc->pfc_en)
606943561d3SAlexander Duyck err = ixgbe_dcb_hw_pfc_config(hw, pfc->pfc_en, prio_tc);
607943561d3SAlexander Duyck else
608943561d3SAlexander Duyck err = hw->mac.ops.fc_enable(hw);
609943561d3SAlexander Duyck
6103ebe8fdeSAlexander Duyck ixgbe_set_rx_drop_en(adapter);
6113ebe8fdeSAlexander Duyck
612943561d3SAlexander Duyck return err;
613dee1ad47SJeff Kirsher }
614dee1ad47SJeff Kirsher
ixgbe_dcbnl_ieee_setapp(struct net_device * dev,struct dcb_app * app)615dee1ad47SJeff Kirsher static int ixgbe_dcbnl_ieee_setapp(struct net_device *dev,
616dee1ad47SJeff Kirsher struct dcb_app *app)
617dee1ad47SJeff Kirsher {
618dee1ad47SJeff Kirsher struct ixgbe_adapter *adapter = netdev_priv(dev);
619e90dd264SMark Rustad int err;
620dee1ad47SJeff Kirsher
621dee1ad47SJeff Kirsher if (!(adapter->dcbx_cap & DCB_CAP_DCBX_VER_IEEE))
622e90dd264SMark Rustad return -EINVAL;
623dee1ad47SJeff Kirsher
624dee1ad47SJeff Kirsher err = dcb_ieee_setapp(dev, app);
625610a63fcSJohn Fastabend if (err)
626610a63fcSJohn Fastabend return err;
627dee1ad47SJeff Kirsher
628dee1ad47SJeff Kirsher #ifdef IXGBE_FCOE
629610a63fcSJohn Fastabend if (app->selector == IEEE_8021QAZ_APP_SEL_ETHERTYPE &&
630dee1ad47SJeff Kirsher app->protocol == ETH_P_FCOE) {
631dee1ad47SJeff Kirsher u8 app_mask = dcb_ieee_getapp_mask(dev, app);
632dee1ad47SJeff Kirsher
633b4f47a48SJacob Keller if (app_mask & BIT(adapter->fcoe.up))
634e90dd264SMark Rustad return 0;
635dee1ad47SJeff Kirsher
636dee1ad47SJeff Kirsher adapter->fcoe.up = app->priority;
637dee1ad47SJeff Kirsher ixgbe_dcbnl_devreset(dev);
638dee1ad47SJeff Kirsher }
639dee1ad47SJeff Kirsher #endif
640610a63fcSJohn Fastabend
641610a63fcSJohn Fastabend /* VF devices should use default UP when available */
642610a63fcSJohn Fastabend if (app->selector == IEEE_8021QAZ_APP_SEL_ETHERTYPE &&
643610a63fcSJohn Fastabend app->protocol == 0) {
644610a63fcSJohn Fastabend int vf;
645610a63fcSJohn Fastabend
646610a63fcSJohn Fastabend adapter->default_up = app->priority;
647610a63fcSJohn Fastabend
648610a63fcSJohn Fastabend for (vf = 0; vf < adapter->num_vfs; vf++) {
649610a63fcSJohn Fastabend struct vf_data_storage *vfinfo = &adapter->vfinfo[vf];
650610a63fcSJohn Fastabend
651610a63fcSJohn Fastabend if (!vfinfo->pf_qos)
652610a63fcSJohn Fastabend ixgbe_set_vmvir(adapter, vfinfo->pf_vlan,
653610a63fcSJohn Fastabend app->priority, vf);
654610a63fcSJohn Fastabend }
655610a63fcSJohn Fastabend }
656610a63fcSJohn Fastabend
657dee1ad47SJeff Kirsher return 0;
658dee1ad47SJeff Kirsher }
659dee1ad47SJeff Kirsher
ixgbe_dcbnl_ieee_delapp(struct net_device * dev,struct dcb_app * app)660dee1ad47SJeff Kirsher static int ixgbe_dcbnl_ieee_delapp(struct net_device *dev,
661dee1ad47SJeff Kirsher struct dcb_app *app)
662dee1ad47SJeff Kirsher {
663dee1ad47SJeff Kirsher struct ixgbe_adapter *adapter = netdev_priv(dev);
664dee1ad47SJeff Kirsher int err;
665dee1ad47SJeff Kirsher
666dee1ad47SJeff Kirsher if (!(adapter->dcbx_cap & DCB_CAP_DCBX_VER_IEEE))
667dee1ad47SJeff Kirsher return -EINVAL;
668dee1ad47SJeff Kirsher
669dee1ad47SJeff Kirsher err = dcb_ieee_delapp(dev, app);
670dee1ad47SJeff Kirsher
671dee1ad47SJeff Kirsher #ifdef IXGBE_FCOE
672dee1ad47SJeff Kirsher if (!err && app->selector == IEEE_8021QAZ_APP_SEL_ETHERTYPE &&
673dee1ad47SJeff Kirsher app->protocol == ETH_P_FCOE) {
674dee1ad47SJeff Kirsher u8 app_mask = dcb_ieee_getapp_mask(dev, app);
675dee1ad47SJeff Kirsher
676b4f47a48SJacob Keller if (app_mask & BIT(adapter->fcoe.up))
677e90dd264SMark Rustad return 0;
678dee1ad47SJeff Kirsher
679dee1ad47SJeff Kirsher adapter->fcoe.up = app_mask ?
680dee1ad47SJeff Kirsher ffs(app_mask) - 1 : IXGBE_FCOE_DEFTC;
681dee1ad47SJeff Kirsher ixgbe_dcbnl_devreset(dev);
682dee1ad47SJeff Kirsher }
683dee1ad47SJeff Kirsher #endif
684610a63fcSJohn Fastabend /* IF default priority is being removed clear VF default UP */
685610a63fcSJohn Fastabend if (app->selector == IEEE_8021QAZ_APP_SEL_ETHERTYPE &&
686610a63fcSJohn Fastabend app->protocol == 0 && adapter->default_up == app->priority) {
687610a63fcSJohn Fastabend int vf;
688610a63fcSJohn Fastabend long unsigned int app_mask = dcb_ieee_getapp_mask(dev, app);
689610a63fcSJohn Fastabend int qos = app_mask ? find_first_bit(&app_mask, 8) : 0;
690610a63fcSJohn Fastabend
691610a63fcSJohn Fastabend adapter->default_up = qos;
692610a63fcSJohn Fastabend
693610a63fcSJohn Fastabend for (vf = 0; vf < adapter->num_vfs; vf++) {
694610a63fcSJohn Fastabend struct vf_data_storage *vfinfo = &adapter->vfinfo[vf];
695610a63fcSJohn Fastabend
696610a63fcSJohn Fastabend if (!vfinfo->pf_qos)
697610a63fcSJohn Fastabend ixgbe_set_vmvir(adapter, vfinfo->pf_vlan,
698610a63fcSJohn Fastabend qos, vf);
699610a63fcSJohn Fastabend }
700610a63fcSJohn Fastabend }
701610a63fcSJohn Fastabend
702dee1ad47SJeff Kirsher return err;
703dee1ad47SJeff Kirsher }
704dee1ad47SJeff Kirsher
ixgbe_dcbnl_getdcbx(struct net_device * dev)705dee1ad47SJeff Kirsher static u8 ixgbe_dcbnl_getdcbx(struct net_device *dev)
706dee1ad47SJeff Kirsher {
707dee1ad47SJeff Kirsher struct ixgbe_adapter *adapter = netdev_priv(dev);
708dee1ad47SJeff Kirsher return adapter->dcbx_cap;
709dee1ad47SJeff Kirsher }
710dee1ad47SJeff Kirsher
ixgbe_dcbnl_setdcbx(struct net_device * dev,u8 mode)711dee1ad47SJeff Kirsher static u8 ixgbe_dcbnl_setdcbx(struct net_device *dev, u8 mode)
712dee1ad47SJeff Kirsher {
713dee1ad47SJeff Kirsher struct ixgbe_adapter *adapter = netdev_priv(dev);
714dee1ad47SJeff Kirsher struct ieee_ets ets = {0};
715dee1ad47SJeff Kirsher struct ieee_pfc pfc = {0};
71689d27a3cSJohn Fastabend int err = 0;
717dee1ad47SJeff Kirsher
718dee1ad47SJeff Kirsher /* no support for LLD_MANAGED modes or CEE+IEEE */
719dee1ad47SJeff Kirsher if ((mode & DCB_CAP_DCBX_LLD_MANAGED) ||
720dee1ad47SJeff Kirsher ((mode & DCB_CAP_DCBX_VER_IEEE) && (mode & DCB_CAP_DCBX_VER_CEE)) ||
721dee1ad47SJeff Kirsher !(mode & DCB_CAP_DCBX_HOST))
722dee1ad47SJeff Kirsher return 1;
723dee1ad47SJeff Kirsher
724dee1ad47SJeff Kirsher if (mode == adapter->dcbx_cap)
725dee1ad47SJeff Kirsher return 0;
726dee1ad47SJeff Kirsher
727dee1ad47SJeff Kirsher adapter->dcbx_cap = mode;
728dee1ad47SJeff Kirsher
729dee1ad47SJeff Kirsher /* ETS and PFC defaults */
730dee1ad47SJeff Kirsher ets.ets_cap = 8;
731dee1ad47SJeff Kirsher pfc.pfc_cap = 8;
732dee1ad47SJeff Kirsher
733dee1ad47SJeff Kirsher if (mode & DCB_CAP_DCBX_VER_IEEE) {
734dee1ad47SJeff Kirsher ixgbe_dcbnl_ieee_setets(dev, &ets);
735dee1ad47SJeff Kirsher ixgbe_dcbnl_ieee_setpfc(dev, &pfc);
736dee1ad47SJeff Kirsher } else if (mode & DCB_CAP_DCBX_VER_CEE) {
73743497cc2SJohn Fastabend u8 mask = BIT_PFC | BIT_PG_TX | BIT_PG_RX | BIT_APP_UPCHG;
73843497cc2SJohn Fastabend
73943497cc2SJohn Fastabend adapter->dcb_set_bitmap |= mask;
740dee1ad47SJeff Kirsher ixgbe_dcbnl_set_all(dev);
741dee1ad47SJeff Kirsher } else {
742dee1ad47SJeff Kirsher /* Drop into single TC mode strict priority as this
743dee1ad47SJeff Kirsher * indicates CEE and IEEE versions are disabled
744dee1ad47SJeff Kirsher */
745dee1ad47SJeff Kirsher ixgbe_dcbnl_ieee_setets(dev, &ets);
746dee1ad47SJeff Kirsher ixgbe_dcbnl_ieee_setpfc(dev, &pfc);
74789d27a3cSJohn Fastabend err = ixgbe_setup_tc(dev, 0);
748dee1ad47SJeff Kirsher }
749dee1ad47SJeff Kirsher
75089d27a3cSJohn Fastabend return err ? 1 : 0;
751dee1ad47SJeff Kirsher }
752dee1ad47SJeff Kirsher
7533f40c74cSStephen Hemminger const struct dcbnl_rtnl_ops ixgbe_dcbnl_ops = {
754dee1ad47SJeff Kirsher .ieee_getets = ixgbe_dcbnl_ieee_getets,
755dee1ad47SJeff Kirsher .ieee_setets = ixgbe_dcbnl_ieee_setets,
756dee1ad47SJeff Kirsher .ieee_getpfc = ixgbe_dcbnl_ieee_getpfc,
757dee1ad47SJeff Kirsher .ieee_setpfc = ixgbe_dcbnl_ieee_setpfc,
758dee1ad47SJeff Kirsher .ieee_setapp = ixgbe_dcbnl_ieee_setapp,
759dee1ad47SJeff Kirsher .ieee_delapp = ixgbe_dcbnl_ieee_delapp,
760dee1ad47SJeff Kirsher .getstate = ixgbe_dcbnl_get_state,
761dee1ad47SJeff Kirsher .setstate = ixgbe_dcbnl_set_state,
762dee1ad47SJeff Kirsher .getpermhwaddr = ixgbe_dcbnl_get_perm_hw_addr,
763dee1ad47SJeff Kirsher .setpgtccfgtx = ixgbe_dcbnl_set_pg_tc_cfg_tx,
764dee1ad47SJeff Kirsher .setpgbwgcfgtx = ixgbe_dcbnl_set_pg_bwg_cfg_tx,
765dee1ad47SJeff Kirsher .setpgtccfgrx = ixgbe_dcbnl_set_pg_tc_cfg_rx,
766dee1ad47SJeff Kirsher .setpgbwgcfgrx = ixgbe_dcbnl_set_pg_bwg_cfg_rx,
767dee1ad47SJeff Kirsher .getpgtccfgtx = ixgbe_dcbnl_get_pg_tc_cfg_tx,
768dee1ad47SJeff Kirsher .getpgbwgcfgtx = ixgbe_dcbnl_get_pg_bwg_cfg_tx,
769dee1ad47SJeff Kirsher .getpgtccfgrx = ixgbe_dcbnl_get_pg_tc_cfg_rx,
770dee1ad47SJeff Kirsher .getpgbwgcfgrx = ixgbe_dcbnl_get_pg_bwg_cfg_rx,
771dee1ad47SJeff Kirsher .setpfccfg = ixgbe_dcbnl_set_pfc_cfg,
772dee1ad47SJeff Kirsher .getpfccfg = ixgbe_dcbnl_get_pfc_cfg,
773dee1ad47SJeff Kirsher .setall = ixgbe_dcbnl_set_all,
774dee1ad47SJeff Kirsher .getcap = ixgbe_dcbnl_getcap,
775dee1ad47SJeff Kirsher .getnumtcs = ixgbe_dcbnl_getnumtcs,
776dee1ad47SJeff Kirsher .setnumtcs = ixgbe_dcbnl_setnumtcs,
777dee1ad47SJeff Kirsher .getpfcstate = ixgbe_dcbnl_getpfcstate,
778dee1ad47SJeff Kirsher .setpfcstate = ixgbe_dcbnl_setpfcstate,
779dee1ad47SJeff Kirsher .getapp = ixgbe_dcbnl_getapp,
780dee1ad47SJeff Kirsher .getdcbx = ixgbe_dcbnl_getdcbx,
781dee1ad47SJeff Kirsher .setdcbx = ixgbe_dcbnl_setdcbx,
782dee1ad47SJeff Kirsher };
783