/drivers/net/ethernet/intel/i40e/i40e_dcb.c
C | 1040 lines | 626 code | 119 blank | 295 comment | 108 complexity | 1f3085a785fb61035589722cc31f26c4 MD5 | raw file
Possible License(s): LGPL-2.0, AGPL-1.0, GPL-2.0
- // SPDX-License-Identifier: GPL-2.0
- /* Copyright(c) 2013 - 2018 Intel Corporation. */
- #include "i40e_adminq.h"
- #include "i40e_prototype.h"
- #include "i40e_dcb.h"
- /**
- * i40e_get_dcbx_status
- * @hw: pointer to the hw struct
- * @status: Embedded DCBX Engine Status
- *
- * Get the DCBX status from the Firmware
- **/
- i40e_status i40e_get_dcbx_status(struct i40e_hw *hw, u16 *status)
- {
- u32 reg;
- if (!status)
- return I40E_ERR_PARAM;
- reg = rd32(hw, I40E_PRTDCB_GENS);
- *status = (u16)((reg & I40E_PRTDCB_GENS_DCBX_STATUS_MASK) >>
- I40E_PRTDCB_GENS_DCBX_STATUS_SHIFT);
- return 0;
- }
- /**
- * i40e_parse_ieee_etscfg_tlv
- * @tlv: IEEE 802.1Qaz ETS CFG TLV
- * @dcbcfg: Local store to update ETS CFG data
- *
- * Parses IEEE 802.1Qaz ETS CFG TLV
- **/
- static void i40e_parse_ieee_etscfg_tlv(struct i40e_lldp_org_tlv *tlv,
- struct i40e_dcbx_config *dcbcfg)
- {
- struct i40e_dcb_ets_config *etscfg;
- u8 *buf = tlv->tlvinfo;
- u16 offset = 0;
- u8 priority;
- int i;
- /* First Octet post subtype
- * --------------------------
- * |will-|CBS | Re- | Max |
- * |ing | |served| TCs |
- * --------------------------
- * |1bit | 1bit|3 bits|3bits|
- */
- etscfg = &dcbcfg->etscfg;
- etscfg->willing = (u8)((buf[offset] & I40E_IEEE_ETS_WILLING_MASK) >>
- I40E_IEEE_ETS_WILLING_SHIFT);
- etscfg->cbs = (u8)((buf[offset] & I40E_IEEE_ETS_CBS_MASK) >>
- I40E_IEEE_ETS_CBS_SHIFT);
- etscfg->maxtcs = (u8)((buf[offset] & I40E_IEEE_ETS_MAXTC_MASK) >>
- I40E_IEEE_ETS_MAXTC_SHIFT);
- /* Move offset to Priority Assignment Table */
- offset++;
- /* Priority Assignment Table (4 octets)
- * Octets:| 1 | 2 | 3 | 4 |
- * -----------------------------------------
- * |pri0|pri1|pri2|pri3|pri4|pri5|pri6|pri7|
- * -----------------------------------------
- * Bits:|7 4|3 0|7 4|3 0|7 4|3 0|7 4|3 0|
- * -----------------------------------------
- */
- for (i = 0; i < 4; i++) {
- priority = (u8)((buf[offset] & I40E_IEEE_ETS_PRIO_1_MASK) >>
- I40E_IEEE_ETS_PRIO_1_SHIFT);
- etscfg->prioritytable[i * 2] = priority;
- priority = (u8)((buf[offset] & I40E_IEEE_ETS_PRIO_0_MASK) >>
- I40E_IEEE_ETS_PRIO_0_SHIFT);
- etscfg->prioritytable[i * 2 + 1] = priority;
- offset++;
- }
- /* TC Bandwidth Table (8 octets)
- * Octets:| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
- * ---------------------------------
- * |tc0|tc1|tc2|tc3|tc4|tc5|tc6|tc7|
- * ---------------------------------
- */
- for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++)
- etscfg->tcbwtable[i] = buf[offset++];
- /* TSA Assignment Table (8 octets)
- * Octets:| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
- * ---------------------------------
- * |tc0|tc1|tc2|tc3|tc4|tc5|tc6|tc7|
- * ---------------------------------
- */
- for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++)
- etscfg->tsatable[i] = buf[offset++];
- }
- /**
- * i40e_parse_ieee_etsrec_tlv
- * @tlv: IEEE 802.1Qaz ETS REC TLV
- * @dcbcfg: Local store to update ETS REC data
- *
- * Parses IEEE 802.1Qaz ETS REC TLV
- **/
- static void i40e_parse_ieee_etsrec_tlv(struct i40e_lldp_org_tlv *tlv,
- struct i40e_dcbx_config *dcbcfg)
- {
- u8 *buf = tlv->tlvinfo;
- u16 offset = 0;
- u8 priority;
- int i;
- /* Move offset to priority table */
- offset++;
- /* Priority Assignment Table (4 octets)
- * Octets:| 1 | 2 | 3 | 4 |
- * -----------------------------------------
- * |pri0|pri1|pri2|pri3|pri4|pri5|pri6|pri7|
- * -----------------------------------------
- * Bits:|7 4|3 0|7 4|3 0|7 4|3 0|7 4|3 0|
- * -----------------------------------------
- */
- for (i = 0; i < 4; i++) {
- priority = (u8)((buf[offset] & I40E_IEEE_ETS_PRIO_1_MASK) >>
- I40E_IEEE_ETS_PRIO_1_SHIFT);
- dcbcfg->etsrec.prioritytable[i*2] = priority;
- priority = (u8)((buf[offset] & I40E_IEEE_ETS_PRIO_0_MASK) >>
- I40E_IEEE_ETS_PRIO_0_SHIFT);
- dcbcfg->etsrec.prioritytable[i*2 + 1] = priority;
- offset++;
- }
- /* TC Bandwidth Table (8 octets)
- * Octets:| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
- * ---------------------------------
- * |tc0|tc1|tc2|tc3|tc4|tc5|tc6|tc7|
- * ---------------------------------
- */
- for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++)
- dcbcfg->etsrec.tcbwtable[i] = buf[offset++];
- /* TSA Assignment Table (8 octets)
- * Octets:| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
- * ---------------------------------
- * |tc0|tc1|tc2|tc3|tc4|tc5|tc6|tc7|
- * ---------------------------------
- */
- for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++)
- dcbcfg->etsrec.tsatable[i] = buf[offset++];
- }
- /**
- * i40e_parse_ieee_pfccfg_tlv
- * @tlv: IEEE 802.1Qaz PFC CFG TLV
- * @dcbcfg: Local store to update PFC CFG data
- *
- * Parses IEEE 802.1Qaz PFC CFG TLV
- **/
- static void i40e_parse_ieee_pfccfg_tlv(struct i40e_lldp_org_tlv *tlv,
- struct i40e_dcbx_config *dcbcfg)
- {
- u8 *buf = tlv->tlvinfo;
- /* ----------------------------------------
- * |will-|MBC | Re- | PFC | PFC Enable |
- * |ing | |served| cap | |
- * -----------------------------------------
- * |1bit | 1bit|2 bits|4bits| 1 octet |
- */
- dcbcfg->pfc.willing = (u8)((buf[0] & I40E_IEEE_PFC_WILLING_MASK) >>
- I40E_IEEE_PFC_WILLING_SHIFT);
- dcbcfg->pfc.mbc = (u8)((buf[0] & I40E_IEEE_PFC_MBC_MASK) >>
- I40E_IEEE_PFC_MBC_SHIFT);
- dcbcfg->pfc.pfccap = (u8)((buf[0] & I40E_IEEE_PFC_CAP_MASK) >>
- I40E_IEEE_PFC_CAP_SHIFT);
- dcbcfg->pfc.pfcenable = buf[1];
- }
- /**
- * i40e_parse_ieee_app_tlv
- * @tlv: IEEE 802.1Qaz APP TLV
- * @dcbcfg: Local store to update APP PRIO data
- *
- * Parses IEEE 802.1Qaz APP PRIO TLV
- **/
- static void i40e_parse_ieee_app_tlv(struct i40e_lldp_org_tlv *tlv,
- struct i40e_dcbx_config *dcbcfg)
- {
- u16 typelength;
- u16 offset = 0;
- u16 length;
- int i = 0;
- u8 *buf;
- typelength = ntohs(tlv->typelength);
- length = (u16)((typelength & I40E_LLDP_TLV_LEN_MASK) >>
- I40E_LLDP_TLV_LEN_SHIFT);
- buf = tlv->tlvinfo;
- /* The App priority table starts 5 octets after TLV header */
- length -= (sizeof(tlv->ouisubtype) + 1);
- /* Move offset to App Priority Table */
- offset++;
- /* Application Priority Table (3 octets)
- * Octets:| 1 | 2 | 3 |
- * -----------------------------------------
- * |Priority|Rsrvd| Sel | Protocol ID |
- * -----------------------------------------
- * Bits:|23 21|20 19|18 16|15 0|
- * -----------------------------------------
- */
- while (offset < length) {
- dcbcfg->app[i].priority = (u8)((buf[offset] &
- I40E_IEEE_APP_PRIO_MASK) >>
- I40E_IEEE_APP_PRIO_SHIFT);
- dcbcfg->app[i].selector = (u8)((buf[offset] &
- I40E_IEEE_APP_SEL_MASK) >>
- I40E_IEEE_APP_SEL_SHIFT);
- dcbcfg->app[i].protocolid = (buf[offset + 1] << 0x8) |
- buf[offset + 2];
- /* Move to next app */
- offset += 3;
- i++;
- if (i >= I40E_DCBX_MAX_APPS)
- break;
- }
- dcbcfg->numapps = i;
- }
- /**
- * i40e_parse_ieee_etsrec_tlv
- * @tlv: IEEE 802.1Qaz TLV
- * @dcbcfg: Local store to update ETS REC data
- *
- * Get the TLV subtype and send it to parsing function
- * based on the subtype value
- **/
- static void i40e_parse_ieee_tlv(struct i40e_lldp_org_tlv *tlv,
- struct i40e_dcbx_config *dcbcfg)
- {
- u32 ouisubtype;
- u8 subtype;
- ouisubtype = ntohl(tlv->ouisubtype);
- subtype = (u8)((ouisubtype & I40E_LLDP_TLV_SUBTYPE_MASK) >>
- I40E_LLDP_TLV_SUBTYPE_SHIFT);
- switch (subtype) {
- case I40E_IEEE_SUBTYPE_ETS_CFG:
- i40e_parse_ieee_etscfg_tlv(tlv, dcbcfg);
- break;
- case I40E_IEEE_SUBTYPE_ETS_REC:
- i40e_parse_ieee_etsrec_tlv(tlv, dcbcfg);
- break;
- case I40E_IEEE_SUBTYPE_PFC_CFG:
- i40e_parse_ieee_pfccfg_tlv(tlv, dcbcfg);
- break;
- case I40E_IEEE_SUBTYPE_APP_PRI:
- i40e_parse_ieee_app_tlv(tlv, dcbcfg);
- break;
- default:
- break;
- }
- }
- /**
- * i40e_parse_cee_pgcfg_tlv
- * @tlv: CEE DCBX PG CFG TLV
- * @dcbcfg: Local store to update ETS CFG data
- *
- * Parses CEE DCBX PG CFG TLV
- **/
- static void i40e_parse_cee_pgcfg_tlv(struct i40e_cee_feat_tlv *tlv,
- struct i40e_dcbx_config *dcbcfg)
- {
- struct i40e_dcb_ets_config *etscfg;
- u8 *buf = tlv->tlvinfo;
- u16 offset = 0;
- u8 priority;
- int i;
- etscfg = &dcbcfg->etscfg;
- if (tlv->en_will_err & I40E_CEE_FEAT_TLV_WILLING_MASK)
- etscfg->willing = 1;
- etscfg->cbs = 0;
- /* Priority Group Table (4 octets)
- * Octets:| 1 | 2 | 3 | 4 |
- * -----------------------------------------
- * |pri0|pri1|pri2|pri3|pri4|pri5|pri6|pri7|
- * -----------------------------------------
- * Bits:|7 4|3 0|7 4|3 0|7 4|3 0|7 4|3 0|
- * -----------------------------------------
- */
- for (i = 0; i < 4; i++) {
- priority = (u8)((buf[offset] & I40E_CEE_PGID_PRIO_1_MASK) >>
- I40E_CEE_PGID_PRIO_1_SHIFT);
- etscfg->prioritytable[i * 2] = priority;
- priority = (u8)((buf[offset] & I40E_CEE_PGID_PRIO_0_MASK) >>
- I40E_CEE_PGID_PRIO_0_SHIFT);
- etscfg->prioritytable[i * 2 + 1] = priority;
- offset++;
- }
- /* PG Percentage Table (8 octets)
- * Octets:| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
- * ---------------------------------
- * |pg0|pg1|pg2|pg3|pg4|pg5|pg6|pg7|
- * ---------------------------------
- */
- for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++)
- etscfg->tcbwtable[i] = buf[offset++];
- /* Number of TCs supported (1 octet) */
- etscfg->maxtcs = buf[offset];
- }
- /**
- * i40e_parse_cee_pfccfg_tlv
- * @tlv: CEE DCBX PFC CFG TLV
- * @dcbcfg: Local store to update PFC CFG data
- *
- * Parses CEE DCBX PFC CFG TLV
- **/
- static void i40e_parse_cee_pfccfg_tlv(struct i40e_cee_feat_tlv *tlv,
- struct i40e_dcbx_config *dcbcfg)
- {
- u8 *buf = tlv->tlvinfo;
- if (tlv->en_will_err & I40E_CEE_FEAT_TLV_WILLING_MASK)
- dcbcfg->pfc.willing = 1;
- /* ------------------------
- * | PFC Enable | PFC TCs |
- * ------------------------
- * | 1 octet | 1 octet |
- */
- dcbcfg->pfc.pfcenable = buf[0];
- dcbcfg->pfc.pfccap = buf[1];
- }
- /**
- * i40e_parse_cee_app_tlv
- * @tlv: CEE DCBX APP TLV
- * @dcbcfg: Local store to update APP PRIO data
- *
- * Parses CEE DCBX APP PRIO TLV
- **/
- static void i40e_parse_cee_app_tlv(struct i40e_cee_feat_tlv *tlv,
- struct i40e_dcbx_config *dcbcfg)
- {
- u16 length, typelength, offset = 0;
- struct i40e_cee_app_prio *app;
- u8 i;
- typelength = ntohs(tlv->hdr.typelen);
- length = (u16)((typelength & I40E_LLDP_TLV_LEN_MASK) >>
- I40E_LLDP_TLV_LEN_SHIFT);
- dcbcfg->numapps = length / sizeof(*app);
- if (!dcbcfg->numapps)
- return;
- if (dcbcfg->numapps > I40E_DCBX_MAX_APPS)
- dcbcfg->numapps = I40E_DCBX_MAX_APPS;
- for (i = 0; i < dcbcfg->numapps; i++) {
- u8 up, selector;
- app = (struct i40e_cee_app_prio *)(tlv->tlvinfo + offset);
- for (up = 0; up < I40E_MAX_USER_PRIORITY; up++) {
- if (app->prio_map & BIT(up))
- break;
- }
- dcbcfg->app[i].priority = up;
- /* Get Selector from lower 2 bits, and convert to IEEE */
- selector = (app->upper_oui_sel & I40E_CEE_APP_SELECTOR_MASK);
- switch (selector) {
- case I40E_CEE_APP_SEL_ETHTYPE:
- dcbcfg->app[i].selector = I40E_APP_SEL_ETHTYPE;
- break;
- case I40E_CEE_APP_SEL_TCPIP:
- dcbcfg->app[i].selector = I40E_APP_SEL_TCPIP;
- break;
- default:
- /* Keep selector as it is for unknown types */
- dcbcfg->app[i].selector = selector;
- }
- dcbcfg->app[i].protocolid = ntohs(app->protocol);
- /* Move to next app */
- offset += sizeof(*app);
- }
- }
- /**
- * i40e_parse_cee_tlv
- * @tlv: CEE DCBX TLV
- * @dcbcfg: Local store to update DCBX config data
- *
- * Get the TLV subtype and send it to parsing function
- * based on the subtype value
- **/
- static void i40e_parse_cee_tlv(struct i40e_lldp_org_tlv *tlv,
- struct i40e_dcbx_config *dcbcfg)
- {
- u16 len, tlvlen, sublen, typelength;
- struct i40e_cee_feat_tlv *sub_tlv;
- u8 subtype, feat_tlv_count = 0;
- u32 ouisubtype;
- ouisubtype = ntohl(tlv->ouisubtype);
- subtype = (u8)((ouisubtype & I40E_LLDP_TLV_SUBTYPE_MASK) >>
- I40E_LLDP_TLV_SUBTYPE_SHIFT);
- /* Return if not CEE DCBX */
- if (subtype != I40E_CEE_DCBX_TYPE)
- return;
- typelength = ntohs(tlv->typelength);
- tlvlen = (u16)((typelength & I40E_LLDP_TLV_LEN_MASK) >>
- I40E_LLDP_TLV_LEN_SHIFT);
- len = sizeof(tlv->typelength) + sizeof(ouisubtype) +
- sizeof(struct i40e_cee_ctrl_tlv);
- /* Return if no CEE DCBX Feature TLVs */
- if (tlvlen <= len)
- return;
- sub_tlv = (struct i40e_cee_feat_tlv *)((char *)tlv + len);
- while (feat_tlv_count < I40E_CEE_MAX_FEAT_TYPE) {
- typelength = ntohs(sub_tlv->hdr.typelen);
- sublen = (u16)((typelength &
- I40E_LLDP_TLV_LEN_MASK) >>
- I40E_LLDP_TLV_LEN_SHIFT);
- subtype = (u8)((typelength & I40E_LLDP_TLV_TYPE_MASK) >>
- I40E_LLDP_TLV_TYPE_SHIFT);
- switch (subtype) {
- case I40E_CEE_SUBTYPE_PG_CFG:
- i40e_parse_cee_pgcfg_tlv(sub_tlv, dcbcfg);
- break;
- case I40E_CEE_SUBTYPE_PFC_CFG:
- i40e_parse_cee_pfccfg_tlv(sub_tlv, dcbcfg);
- break;
- case I40E_CEE_SUBTYPE_APP_PRI:
- i40e_parse_cee_app_tlv(sub_tlv, dcbcfg);
- break;
- default:
- return; /* Invalid Sub-type return */
- }
- feat_tlv_count++;
- /* Move to next sub TLV */
- sub_tlv = (struct i40e_cee_feat_tlv *)((char *)sub_tlv +
- sizeof(sub_tlv->hdr.typelen) +
- sublen);
- }
- }
- /**
- * i40e_parse_org_tlv
- * @tlv: Organization specific TLV
- * @dcbcfg: Local store to update ETS REC data
- *
- * Currently only IEEE 802.1Qaz TLV is supported, all others
- * will be returned
- **/
- static void i40e_parse_org_tlv(struct i40e_lldp_org_tlv *tlv,
- struct i40e_dcbx_config *dcbcfg)
- {
- u32 ouisubtype;
- u32 oui;
- ouisubtype = ntohl(tlv->ouisubtype);
- oui = (u32)((ouisubtype & I40E_LLDP_TLV_OUI_MASK) >>
- I40E_LLDP_TLV_OUI_SHIFT);
- switch (oui) {
- case I40E_IEEE_8021QAZ_OUI:
- i40e_parse_ieee_tlv(tlv, dcbcfg);
- break;
- case I40E_CEE_DCBX_OUI:
- i40e_parse_cee_tlv(tlv, dcbcfg);
- break;
- default:
- break;
- }
- }
- /**
- * i40e_lldp_to_dcb_config
- * @lldpmib: LLDPDU to be parsed
- * @dcbcfg: store for LLDPDU data
- *
- * Parse DCB configuration from the LLDPDU
- **/
- i40e_status i40e_lldp_to_dcb_config(u8 *lldpmib,
- struct i40e_dcbx_config *dcbcfg)
- {
- i40e_status ret = 0;
- struct i40e_lldp_org_tlv *tlv;
- u16 type;
- u16 length;
- u16 typelength;
- u16 offset = 0;
- if (!lldpmib || !dcbcfg)
- return I40E_ERR_PARAM;
- /* set to the start of LLDPDU */
- lldpmib += ETH_HLEN;
- tlv = (struct i40e_lldp_org_tlv *)lldpmib;
- while (1) {
- typelength = ntohs(tlv->typelength);
- type = (u16)((typelength & I40E_LLDP_TLV_TYPE_MASK) >>
- I40E_LLDP_TLV_TYPE_SHIFT);
- length = (u16)((typelength & I40E_LLDP_TLV_LEN_MASK) >>
- I40E_LLDP_TLV_LEN_SHIFT);
- offset += sizeof(typelength) + length;
- /* END TLV or beyond LLDPDU size */
- if ((type == I40E_TLV_TYPE_END) || (offset > I40E_LLDPDU_SIZE))
- break;
- switch (type) {
- case I40E_TLV_TYPE_ORG:
- i40e_parse_org_tlv(tlv, dcbcfg);
- break;
- default:
- break;
- }
- /* Move to next TLV */
- tlv = (struct i40e_lldp_org_tlv *)((char *)tlv +
- sizeof(tlv->typelength) +
- length);
- }
- return ret;
- }
- /**
- * i40e_aq_get_dcb_config
- * @hw: pointer to the hw struct
- * @mib_type: mib type for the query
- * @bridgetype: bridge type for the query (remote)
- * @dcbcfg: store for LLDPDU data
- *
- * Query DCB configuration from the Firmware
- **/
- i40e_status i40e_aq_get_dcb_config(struct i40e_hw *hw, u8 mib_type,
- u8 bridgetype,
- struct i40e_dcbx_config *dcbcfg)
- {
- i40e_status ret = 0;
- struct i40e_virt_mem mem;
- u8 *lldpmib;
- /* Allocate the LLDPDU */
- ret = i40e_allocate_virt_mem(hw, &mem, I40E_LLDPDU_SIZE);
- if (ret)
- return ret;
- lldpmib = (u8 *)mem.va;
- ret = i40e_aq_get_lldp_mib(hw, bridgetype, mib_type,
- (void *)lldpmib, I40E_LLDPDU_SIZE,
- NULL, NULL, NULL);
- if (ret)
- goto free_mem;
- /* Parse LLDP MIB to get dcb configuration */
- ret = i40e_lldp_to_dcb_config(lldpmib, dcbcfg);
- free_mem:
- i40e_free_virt_mem(hw, &mem);
- return ret;
- }
- /**
- * i40e_cee_to_dcb_v1_config
- * @cee_cfg: pointer to CEE v1 response configuration struct
- * @dcbcfg: DCB configuration struct
- *
- * Convert CEE v1 configuration from firmware to DCB configuration
- **/
- static void i40e_cee_to_dcb_v1_config(
- struct i40e_aqc_get_cee_dcb_cfg_v1_resp *cee_cfg,
- struct i40e_dcbx_config *dcbcfg)
- {
- u16 status, tlv_status = le16_to_cpu(cee_cfg->tlv_status);
- u16 app_prio = le16_to_cpu(cee_cfg->oper_app_prio);
- u8 i, tc, err;
- /* CEE PG data to ETS config */
- dcbcfg->etscfg.maxtcs = cee_cfg->oper_num_tc;
- /* Note that the FW creates the oper_prio_tc nibbles reversed
- * from those in the CEE Priority Group sub-TLV.
- */
- for (i = 0; i < 4; i++) {
- tc = (u8)((cee_cfg->oper_prio_tc[i] &
- I40E_CEE_PGID_PRIO_0_MASK) >>
- I40E_CEE_PGID_PRIO_0_SHIFT);
- dcbcfg->etscfg.prioritytable[i * 2] = tc;
- tc = (u8)((cee_cfg->oper_prio_tc[i] &
- I40E_CEE_PGID_PRIO_1_MASK) >>
- I40E_CEE_PGID_PRIO_1_SHIFT);
- dcbcfg->etscfg.prioritytable[i*2 + 1] = tc;
- }
- for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++)
- dcbcfg->etscfg.tcbwtable[i] = cee_cfg->oper_tc_bw[i];
- for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
- if (dcbcfg->etscfg.prioritytable[i] == I40E_CEE_PGID_STRICT) {
- /* Map it to next empty TC */
- dcbcfg->etscfg.prioritytable[i] =
- cee_cfg->oper_num_tc - 1;
- dcbcfg->etscfg.tsatable[i] = I40E_IEEE_TSA_STRICT;
- } else {
- dcbcfg->etscfg.tsatable[i] = I40E_IEEE_TSA_ETS;
- }
- }
- /* CEE PFC data to ETS config */
- dcbcfg->pfc.pfcenable = cee_cfg->oper_pfc_en;
- dcbcfg->pfc.pfccap = I40E_MAX_TRAFFIC_CLASS;
- status = (tlv_status & I40E_AQC_CEE_APP_STATUS_MASK) >>
- I40E_AQC_CEE_APP_STATUS_SHIFT;
- err = (status & I40E_TLV_STATUS_ERR) ? 1 : 0;
- /* Add APPs if Error is False */
- if (!err) {
- /* CEE operating configuration supports FCoE/iSCSI/FIP only */
- dcbcfg->numapps = I40E_CEE_OPER_MAX_APPS;
- /* FCoE APP */
- dcbcfg->app[0].priority =
- (app_prio & I40E_AQC_CEE_APP_FCOE_MASK) >>
- I40E_AQC_CEE_APP_FCOE_SHIFT;
- dcbcfg->app[0].selector = I40E_APP_SEL_ETHTYPE;
- dcbcfg->app[0].protocolid = I40E_APP_PROTOID_FCOE;
- /* iSCSI APP */
- dcbcfg->app[1].priority =
- (app_prio & I40E_AQC_CEE_APP_ISCSI_MASK) >>
- I40E_AQC_CEE_APP_ISCSI_SHIFT;
- dcbcfg->app[1].selector = I40E_APP_SEL_TCPIP;
- dcbcfg->app[1].protocolid = I40E_APP_PROTOID_ISCSI;
- /* FIP APP */
- dcbcfg->app[2].priority =
- (app_prio & I40E_AQC_CEE_APP_FIP_MASK) >>
- I40E_AQC_CEE_APP_FIP_SHIFT;
- dcbcfg->app[2].selector = I40E_APP_SEL_ETHTYPE;
- dcbcfg->app[2].protocolid = I40E_APP_PROTOID_FIP;
- }
- }
- /**
- * i40e_cee_to_dcb_config
- * @cee_cfg: pointer to CEE configuration struct
- * @dcbcfg: DCB configuration struct
- *
- * Convert CEE configuration from firmware to DCB configuration
- **/
- static void i40e_cee_to_dcb_config(
- struct i40e_aqc_get_cee_dcb_cfg_resp *cee_cfg,
- struct i40e_dcbx_config *dcbcfg)
- {
- u32 status, tlv_status = le32_to_cpu(cee_cfg->tlv_status);
- u16 app_prio = le16_to_cpu(cee_cfg->oper_app_prio);
- u8 i, tc, err, sync, oper;
- /* CEE PG data to ETS config */
- dcbcfg->etscfg.maxtcs = cee_cfg->oper_num_tc;
- /* Note that the FW creates the oper_prio_tc nibbles reversed
- * from those in the CEE Priority Group sub-TLV.
- */
- for (i = 0; i < 4; i++) {
- tc = (u8)((cee_cfg->oper_prio_tc[i] &
- I40E_CEE_PGID_PRIO_0_MASK) >>
- I40E_CEE_PGID_PRIO_0_SHIFT);
- dcbcfg->etscfg.prioritytable[i * 2] = tc;
- tc = (u8)((cee_cfg->oper_prio_tc[i] &
- I40E_CEE_PGID_PRIO_1_MASK) >>
- I40E_CEE_PGID_PRIO_1_SHIFT);
- dcbcfg->etscfg.prioritytable[i * 2 + 1] = tc;
- }
- for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++)
- dcbcfg->etscfg.tcbwtable[i] = cee_cfg->oper_tc_bw[i];
- for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
- if (dcbcfg->etscfg.prioritytable[i] == I40E_CEE_PGID_STRICT) {
- /* Map it to next empty TC */
- dcbcfg->etscfg.prioritytable[i] =
- cee_cfg->oper_num_tc - 1;
- dcbcfg->etscfg.tsatable[i] = I40E_IEEE_TSA_STRICT;
- } else {
- dcbcfg->etscfg.tsatable[i] = I40E_IEEE_TSA_ETS;
- }
- }
- /* CEE PFC data to ETS config */
- dcbcfg->pfc.pfcenable = cee_cfg->oper_pfc_en;
- dcbcfg->pfc.pfccap = I40E_MAX_TRAFFIC_CLASS;
- i = 0;
- status = (tlv_status & I40E_AQC_CEE_FCOE_STATUS_MASK) >>
- I40E_AQC_CEE_FCOE_STATUS_SHIFT;
- err = (status & I40E_TLV_STATUS_ERR) ? 1 : 0;
- sync = (status & I40E_TLV_STATUS_SYNC) ? 1 : 0;
- oper = (status & I40E_TLV_STATUS_OPER) ? 1 : 0;
- /* Add FCoE APP if Error is False and Oper/Sync is True */
- if (!err && sync && oper) {
- /* FCoE APP */
- dcbcfg->app[i].priority =
- (app_prio & I40E_AQC_CEE_APP_FCOE_MASK) >>
- I40E_AQC_CEE_APP_FCOE_SHIFT;
- dcbcfg->app[i].selector = I40E_APP_SEL_ETHTYPE;
- dcbcfg->app[i].protocolid = I40E_APP_PROTOID_FCOE;
- i++;
- }
- status = (tlv_status & I40E_AQC_CEE_ISCSI_STATUS_MASK) >>
- I40E_AQC_CEE_ISCSI_STATUS_SHIFT;
- err = (status & I40E_TLV_STATUS_ERR) ? 1 : 0;
- sync = (status & I40E_TLV_STATUS_SYNC) ? 1 : 0;
- oper = (status & I40E_TLV_STATUS_OPER) ? 1 : 0;
- /* Add iSCSI APP if Error is False and Oper/Sync is True */
- if (!err && sync && oper) {
- /* iSCSI APP */
- dcbcfg->app[i].priority =
- (app_prio & I40E_AQC_CEE_APP_ISCSI_MASK) >>
- I40E_AQC_CEE_APP_ISCSI_SHIFT;
- dcbcfg->app[i].selector = I40E_APP_SEL_TCPIP;
- dcbcfg->app[i].protocolid = I40E_APP_PROTOID_ISCSI;
- i++;
- }
- status = (tlv_status & I40E_AQC_CEE_FIP_STATUS_MASK) >>
- I40E_AQC_CEE_FIP_STATUS_SHIFT;
- err = (status & I40E_TLV_STATUS_ERR) ? 1 : 0;
- sync = (status & I40E_TLV_STATUS_SYNC) ? 1 : 0;
- oper = (status & I40E_TLV_STATUS_OPER) ? 1 : 0;
- /* Add FIP APP if Error is False and Oper/Sync is True */
- if (!err && sync && oper) {
- /* FIP APP */
- dcbcfg->app[i].priority =
- (app_prio & I40E_AQC_CEE_APP_FIP_MASK) >>
- I40E_AQC_CEE_APP_FIP_SHIFT;
- dcbcfg->app[i].selector = I40E_APP_SEL_ETHTYPE;
- dcbcfg->app[i].protocolid = I40E_APP_PROTOID_FIP;
- i++;
- }
- dcbcfg->numapps = i;
- }
- /**
- * i40e_get_ieee_dcb_config
- * @hw: pointer to the hw struct
- *
- * Get IEEE mode DCB configuration from the Firmware
- **/
- static i40e_status i40e_get_ieee_dcb_config(struct i40e_hw *hw)
- {
- i40e_status ret = 0;
- /* IEEE mode */
- hw->local_dcbx_config.dcbx_mode = I40E_DCBX_MODE_IEEE;
- /* Get Local DCB Config */
- ret = i40e_aq_get_dcb_config(hw, I40E_AQ_LLDP_MIB_LOCAL, 0,
- &hw->local_dcbx_config);
- if (ret)
- goto out;
- /* Get Remote DCB Config */
- ret = i40e_aq_get_dcb_config(hw, I40E_AQ_LLDP_MIB_REMOTE,
- I40E_AQ_LLDP_BRIDGE_TYPE_NEAREST_BRIDGE,
- &hw->remote_dcbx_config);
- /* Don't treat ENOENT as an error for Remote MIBs */
- if (hw->aq.asq_last_status == I40E_AQ_RC_ENOENT)
- ret = 0;
- out:
- return ret;
- }
- /**
- * i40e_get_dcb_config
- * @hw: pointer to the hw struct
- *
- * Get DCB configuration from the Firmware
- **/
- i40e_status i40e_get_dcb_config(struct i40e_hw *hw)
- {
- i40e_status ret = 0;
- struct i40e_aqc_get_cee_dcb_cfg_resp cee_cfg;
- struct i40e_aqc_get_cee_dcb_cfg_v1_resp cee_v1_cfg;
- /* If Firmware version < v4.33 on X710/XL710, IEEE only */
- if ((hw->mac.type == I40E_MAC_XL710) &&
- (((hw->aq.fw_maj_ver == 4) && (hw->aq.fw_min_ver < 33)) ||
- (hw->aq.fw_maj_ver < 4)))
- return i40e_get_ieee_dcb_config(hw);
- /* If Firmware version == v4.33 on X710/XL710, use old CEE struct */
- if ((hw->mac.type == I40E_MAC_XL710) &&
- ((hw->aq.fw_maj_ver == 4) && (hw->aq.fw_min_ver == 33))) {
- ret = i40e_aq_get_cee_dcb_config(hw, &cee_v1_cfg,
- sizeof(cee_v1_cfg), NULL);
- if (!ret) {
- /* CEE mode */
- hw->local_dcbx_config.dcbx_mode = I40E_DCBX_MODE_CEE;
- hw->local_dcbx_config.tlv_status =
- le16_to_cpu(cee_v1_cfg.tlv_status);
- i40e_cee_to_dcb_v1_config(&cee_v1_cfg,
- &hw->local_dcbx_config);
- }
- } else {
- ret = i40e_aq_get_cee_dcb_config(hw, &cee_cfg,
- sizeof(cee_cfg), NULL);
- if (!ret) {
- /* CEE mode */
- hw->local_dcbx_config.dcbx_mode = I40E_DCBX_MODE_CEE;
- hw->local_dcbx_config.tlv_status =
- le32_to_cpu(cee_cfg.tlv_status);
- i40e_cee_to_dcb_config(&cee_cfg,
- &hw->local_dcbx_config);
- }
- }
- /* CEE mode not enabled try querying IEEE data */
- if (hw->aq.asq_last_status == I40E_AQ_RC_ENOENT)
- return i40e_get_ieee_dcb_config(hw);
- if (ret)
- goto out;
- /* Get CEE DCB Desired Config */
- ret = i40e_aq_get_dcb_config(hw, I40E_AQ_LLDP_MIB_LOCAL, 0,
- &hw->desired_dcbx_config);
- if (ret)
- goto out;
- /* Get Remote DCB Config */
- ret = i40e_aq_get_dcb_config(hw, I40E_AQ_LLDP_MIB_REMOTE,
- I40E_AQ_LLDP_BRIDGE_TYPE_NEAREST_BRIDGE,
- &hw->remote_dcbx_config);
- /* Don't treat ENOENT as an error for Remote MIBs */
- if (hw->aq.asq_last_status == I40E_AQ_RC_ENOENT)
- ret = 0;
- out:
- return ret;
- }
- /**
- * i40e_init_dcb
- * @hw: pointer to the hw struct
- * @enable_mib_change: enable mib change event
- *
- * Update DCB configuration from the Firmware
- **/
- i40e_status i40e_init_dcb(struct i40e_hw *hw, bool enable_mib_change)
- {
- i40e_status ret = 0;
- struct i40e_lldp_variables lldp_cfg;
- u8 adminstatus = 0;
- if (!hw->func_caps.dcb)
- return I40E_NOT_SUPPORTED;
- /* Read LLDP NVM area */
- if (hw->flags & I40E_HW_FLAG_FW_LLDP_PERSISTENT) {
- u8 offset = 0;
- if (hw->mac.type == I40E_MAC_XL710)
- offset = I40E_LLDP_CURRENT_STATUS_XL710_OFFSET;
- else if (hw->mac.type == I40E_MAC_X722)
- offset = I40E_LLDP_CURRENT_STATUS_X722_OFFSET;
- else
- return I40E_NOT_SUPPORTED;
- ret = i40e_read_nvm_module_data(hw,
- I40E_SR_EMP_SR_SETTINGS_PTR,
- offset,
- I40E_LLDP_CURRENT_STATUS_OFFSET,
- I40E_LLDP_CURRENT_STATUS_SIZE,
- &lldp_cfg.adminstatus);
- } else {
- ret = i40e_read_lldp_cfg(hw, &lldp_cfg);
- }
- if (ret)
- return I40E_ERR_NOT_READY;
- /* Get the LLDP AdminStatus for the current port */
- adminstatus = lldp_cfg.adminstatus >> (hw->port * 4);
- adminstatus &= 0xF;
- /* LLDP agent disabled */
- if (!adminstatus) {
- hw->dcbx_status = I40E_DCBX_STATUS_DISABLED;
- return I40E_ERR_NOT_READY;
- }
- /* Get DCBX status */
- ret = i40e_get_dcbx_status(hw, &hw->dcbx_status);
- if (ret)
- return ret;
- /* Check the DCBX Status */
- if (hw->dcbx_status == I40E_DCBX_STATUS_DONE ||
- hw->dcbx_status == I40E_DCBX_STATUS_IN_PROGRESS) {
- /* Get current DCBX configuration */
- ret = i40e_get_dcb_config(hw);
- if (ret)
- return ret;
- } else if (hw->dcbx_status == I40E_DCBX_STATUS_DISABLED) {
- return I40E_ERR_NOT_READY;
- }
- /* Configure the LLDP MIB change event */
- if (enable_mib_change)
- ret = i40e_aq_cfg_lldp_mib_change_event(hw, true, NULL);
- return ret;
- }
- /**
- * _i40e_read_lldp_cfg - generic read of LLDP Configuration data from NVM
- * @hw: pointer to the HW structure
- * @lldp_cfg: pointer to hold lldp configuration variables
- * @module: address of the module pointer
- * @word_offset: offset of LLDP configuration
- *
- * Reads the LLDP configuration data from NVM using passed addresses
- **/
- static i40e_status _i40e_read_lldp_cfg(struct i40e_hw *hw,
- struct i40e_lldp_variables *lldp_cfg,
- u8 module, u32 word_offset)
- {
- u32 address, offset = (2 * word_offset);
- i40e_status ret;
- __le16 raw_mem;
- u16 mem;
- ret = i40e_acquire_nvm(hw, I40E_RESOURCE_READ);
- if (ret)
- return ret;
- ret = i40e_aq_read_nvm(hw, 0x0, module * 2, sizeof(raw_mem), &raw_mem,
- true, NULL);
- i40e_release_nvm(hw);
- if (ret)
- return ret;
- mem = le16_to_cpu(raw_mem);
- /* Check if this pointer needs to be read in word size or 4K sector
- * units.
- */
- if (mem & I40E_PTR_TYPE)
- address = (0x7FFF & mem) * 4096;
- else
- address = (0x7FFF & mem) * 2;
- ret = i40e_acquire_nvm(hw, I40E_RESOURCE_READ);
- if (ret)
- goto err_lldp_cfg;
- ret = i40e_aq_read_nvm(hw, module, offset, sizeof(raw_mem), &raw_mem,
- true, NULL);
- i40e_release_nvm(hw);
- if (ret)
- return ret;
- mem = le16_to_cpu(raw_mem);
- offset = mem + word_offset;
- offset *= 2;
- ret = i40e_acquire_nvm(hw, I40E_RESOURCE_READ);
- if (ret)
- goto err_lldp_cfg;
- ret = i40e_aq_read_nvm(hw, 0, address + offset,
- sizeof(struct i40e_lldp_variables), lldp_cfg,
- true, NULL);
- i40e_release_nvm(hw);
- err_lldp_cfg:
- return ret;
- }
- /**
- * i40e_read_lldp_cfg - read LLDP Configuration data from NVM
- * @hw: pointer to the HW structure
- * @lldp_cfg: pointer to hold lldp configuration variables
- *
- * Reads the LLDP configuration data from NVM
- **/
- i40e_status i40e_read_lldp_cfg(struct i40e_hw *hw,
- struct i40e_lldp_variables *lldp_cfg)
- {
- i40e_status ret = 0;
- u32 mem;
- if (!lldp_cfg)
- return I40E_ERR_PARAM;
- ret = i40e_acquire_nvm(hw, I40E_RESOURCE_READ);
- if (ret)
- return ret;
- ret = i40e_aq_read_nvm(hw, I40E_SR_NVM_CONTROL_WORD, 0, sizeof(mem),
- &mem, true, NULL);
- i40e_release_nvm(hw);
- if (ret)
- return ret;
- /* Read a bit that holds information whether we are running flat or
- * structured NVM image. Flat image has LLDP configuration in shadow
- * ram, so there is a need to pass different addresses for both cases.
- */
- if (mem & I40E_SR_NVM_MAP_STRUCTURE_TYPE) {
- /* Flat NVM case */
- ret = _i40e_read_lldp_cfg(hw, lldp_cfg, I40E_SR_EMP_MODULE_PTR,
- I40E_SR_LLDP_CFG_PTR);
- } else {
- /* Good old structured NVM image */
- ret = _i40e_read_lldp_cfg(hw, lldp_cfg, I40E_EMP_MODULE_PTR,
- I40E_NVM_LLDP_CFG_PTR);
- }
- return ret;
- }