--- /dev/null
+/*******************************************************************************
+
+Copyright (c) 2013 - 2015, Intel Corporation
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+ 1. Redistributions of source code must retain the above copyright notice,
+ this list of conditions and the following disclaimer.
+
+ 2. Redistributions in binary form must reproduce the above copyright
+ notice, this list of conditions and the following disclaimer in the
+ documentation and/or other materials provided with the distribution.
+
+ 3. Neither the name of the Intel Corporation nor the names of its
+ contributors may be used to endorse or promote products derived from
+ this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGE.
+
+***************************************************************************/
+
+#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
+ **/
+enum i40e_status_code 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 I40E_SUCCESS;
+}
+
+/**
+ * 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 = I40E_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 = I40E_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 = I40E_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;
+
+ 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 = I40E_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 = I40E_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 = I40E_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 = I40E_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 = I40E_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
+ **/
+enum i40e_status_code i40e_lldp_to_dcb_config(u8 *lldpmib,
+ struct i40e_dcbx_config *dcbcfg)
+{
+ enum i40e_status_code ret = I40E_SUCCESS;
+ 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 += I40E_LLDP_MIB_HLEN;
+ tlv = (struct i40e_lldp_org_tlv *)lldpmib;
+ while (1) {
+ typelength = I40E_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
+ **/
+enum i40e_status_code i40e_aq_get_dcb_config(struct i40e_hw *hw, u8 mib_type,
+ u8 bridgetype,
+ struct i40e_dcbx_config *dcbcfg)
+{
+ enum i40e_status_code ret = I40E_SUCCESS;
+ 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 enum i40e_status_code i40e_get_ieee_dcb_config(struct i40e_hw *hw)
+{
+ enum i40e_status_code ret = I40E_SUCCESS;
+
+ /* 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 = I40E_SUCCESS;
+
+out:
+ return ret;
+}
+
+/**
+ * i40e_get_dcb_config
+ * @hw: pointer to the hw struct
+ *
+ * Get DCB configuration from the Firmware
+ **/
+enum i40e_status_code i40e_get_dcb_config(struct i40e_hw *hw)
+{
+ enum i40e_status_code ret = I40E_SUCCESS;
+ 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 == I40E_SUCCESS) {
+ /* 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 == I40E_SUCCESS) {
+ /* 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 != I40E_SUCCESS)
+ 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 = I40E_SUCCESS;
+
+out:
+ return ret;
+}
+
+/**
+ * i40e_init_dcb
+ * @hw: pointer to the hw struct
+ *
+ * Update DCB configuration from the Firmware
+ **/
+enum i40e_status_code i40e_init_dcb(struct i40e_hw *hw)
+{
+ enum i40e_status_code ret = I40E_SUCCESS;
+ struct i40e_lldp_variables lldp_cfg;
+ u8 adminstatus = 0;
+
+ if (!hw->func_caps.dcb)
+ return ret;
+
+ /* Read LLDP NVM area */
+ ret = i40e_read_lldp_cfg(hw, &lldp_cfg);
+ if (ret)
+ return ret;
+
+ /* 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 ret;
+ }
+
+ /* Get DCBX status */
+ ret = i40e_get_dcbx_status(hw, &hw->dcbx_status);
+ if (ret)
+ return ret;
+
+ /* Check the DCBX Status */
+ switch (hw->dcbx_status) {
+ case I40E_DCBX_STATUS_DONE:
+ case I40E_DCBX_STATUS_IN_PROGRESS:
+ /* Get current DCBX configuration */
+ ret = i40e_get_dcb_config(hw);
+ if (ret)
+ return ret;
+ break;
+ case I40E_DCBX_STATUS_DISABLED:
+ return ret;
+ case I40E_DCBX_STATUS_NOT_STARTED:
+ case I40E_DCBX_STATUS_MULTIPLE_PEERS:
+ default:
+ break;
+ }
+
+ /* Configure the LLDP MIB change event */
+ ret = i40e_aq_cfg_lldp_mib_change_event(hw, true, NULL);
+ if (ret)
+ return ret;
+
+ return ret;
+}
+
+/**
+ * i40e_add_ieee_ets_tlv - Prepare ETS TLV in IEEE format
+ * @tlv: Fill the ETS config data in IEEE format
+ * @dcbcfg: Local store which holds the DCB Config
+ *
+ * Prepare IEEE 802.1Qaz ETS CFG TLV
+ **/
+static void i40e_add_ieee_ets_tlv(struct i40e_lldp_org_tlv *tlv,
+ struct i40e_dcbx_config *dcbcfg)
+{
+ u8 priority0, priority1, maxtcwilling = 0;
+ struct i40e_dcb_ets_config *etscfg;
+ u16 offset = 0, typelength, i;
+ u8 *buf = tlv->tlvinfo;
+ u32 ouisubtype;
+
+ typelength = (u16)((I40E_TLV_TYPE_ORG << I40E_LLDP_TLV_TYPE_SHIFT) |
+ I40E_IEEE_ETS_TLV_LENGTH);
+ tlv->typelength = I40E_HTONS(typelength);
+
+ ouisubtype = (u32)((I40E_IEEE_8021QAZ_OUI << I40E_LLDP_TLV_OUI_SHIFT) |
+ I40E_IEEE_SUBTYPE_ETS_CFG);
+ tlv->ouisubtype = I40E_HTONL(ouisubtype);
+
+ /* First Octet post subtype
+ * --------------------------
+ * |will-|CBS | Re- | Max |
+ * |ing | |served| TCs |
+ * --------------------------
+ * |1bit | 1bit|3 bits|3bits|
+ */
+ etscfg = &dcbcfg->etscfg;
+ if (etscfg->willing)
+ maxtcwilling = BIT(I40E_IEEE_ETS_WILLING_SHIFT);
+ maxtcwilling |= etscfg->maxtcs & I40E_IEEE_ETS_MAXTC_MASK;
+ buf[offset] = maxtcwilling;
+
+ /* 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++) {
+ priority0 = etscfg->prioritytable[i * 2] & 0xF;
+ priority1 = etscfg->prioritytable[i * 2 + 1] & 0xF;
+ buf[offset] = (priority0 << I40E_IEEE_ETS_PRIO_1_SHIFT) |
+ priority1;
+ 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++)
+ buf[offset++] = etscfg->tcbwtable[i];
+
+ /* 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++)
+ buf[offset++] = etscfg->tsatable[i];
+}
+
+/**
+ * i40e_add_ieee_etsrec_tlv - Prepare ETS Recommended TLV in IEEE format
+ * @tlv: Fill ETS Recommended TLV in IEEE format
+ * @dcbcfg: Local store which holds the DCB Config
+ *
+ * Prepare IEEE 802.1Qaz ETS REC TLV
+ **/
+static void i40e_add_ieee_etsrec_tlv(struct i40e_lldp_org_tlv *tlv,
+ struct i40e_dcbx_config *dcbcfg)
+{
+ struct i40e_dcb_ets_config *etsrec;
+ u16 offset = 0, typelength, i;
+ u8 priority0, priority1;
+ u8 *buf = tlv->tlvinfo;
+ u32 ouisubtype;
+
+ typelength = (u16)((I40E_TLV_TYPE_ORG << I40E_LLDP_TLV_TYPE_SHIFT) |
+ I40E_IEEE_ETS_TLV_LENGTH);
+ tlv->typelength = I40E_HTONS(typelength);
+
+ ouisubtype = (u32)((I40E_IEEE_8021QAZ_OUI << I40E_LLDP_TLV_OUI_SHIFT) |
+ I40E_IEEE_SUBTYPE_ETS_REC);
+ tlv->ouisubtype = I40E_HTONL(ouisubtype);
+
+ etsrec = &dcbcfg->etsrec;
+ /* First Octet is reserved */
+ /* 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++) {
+ priority0 = etsrec->prioritytable[i * 2] & 0xF;
+ priority1 = etsrec->prioritytable[i * 2 + 1] & 0xF;
+ buf[offset] = (priority0 << I40E_IEEE_ETS_PRIO_1_SHIFT) |
+ priority1;
+ 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++)
+ buf[offset++] = etsrec->tcbwtable[i];
+
+ /* 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++)
+ buf[offset++] = etsrec->tsatable[i];
+}
+
+ /**
+ * i40e_add_ieee_pfc_tlv - Prepare PFC TLV in IEEE format
+ * @tlv: Fill PFC TLV in IEEE format
+ * @dcbcfg: Local store to get PFC CFG data
+ *
+ * Prepare IEEE 802.1Qaz PFC CFG TLV
+ **/
+static void i40e_add_ieee_pfc_tlv(struct i40e_lldp_org_tlv *tlv,
+ struct i40e_dcbx_config *dcbcfg)
+{
+ u8 *buf = tlv->tlvinfo;
+ u32 ouisubtype;
+ u16 typelength;
+
+ typelength = (u16)((I40E_TLV_TYPE_ORG << I40E_LLDP_TLV_TYPE_SHIFT) |
+ I40E_IEEE_PFC_TLV_LENGTH);
+ tlv->typelength = I40E_HTONS(typelength);
+
+ ouisubtype = (u32)((I40E_IEEE_8021QAZ_OUI << I40E_LLDP_TLV_OUI_SHIFT) |
+ I40E_IEEE_SUBTYPE_PFC_CFG);
+ tlv->ouisubtype = I40E_HTONL(ouisubtype);
+
+ /* ----------------------------------------
+ * |will-|MBC | Re- | PFC | PFC Enable |
+ * |ing | |served| cap | |
+ * -----------------------------------------
+ * |1bit | 1bit|2 bits|4bits| 1 octet |
+ */
+ if (dcbcfg->pfc.willing)
+ buf[0] = BIT(I40E_IEEE_PFC_WILLING_SHIFT);
+
+ if (dcbcfg->pfc.mbc)
+ buf[0] |= BIT(I40E_IEEE_PFC_MBC_SHIFT);
+
+ buf[0] |= dcbcfg->pfc.pfccap & 0xF;
+ buf[1] = dcbcfg->pfc.pfcenable;
+}
+
+/**
+ * i40e_add_ieee_app_pri_tlv - Prepare APP TLV in IEEE format
+ * @tlv: Fill APP TLV in IEEE format
+ * @dcbcfg: Local store to get APP CFG data
+ *
+ * Prepare IEEE 802.1Qaz APP CFG TLV
+ **/
+static void i40e_add_ieee_app_pri_tlv(struct i40e_lldp_org_tlv *tlv,
+ struct i40e_dcbx_config *dcbcfg)
+{
+ u16 typelength, length, offset = 0;
+ u8 priority, selector, i = 0;
+ u8 *buf = tlv->tlvinfo;
+ u32 ouisubtype;
+
+ /* No APP TLVs then just return */
+ if (dcbcfg->numapps == 0)
+ return;
+ ouisubtype = (u32)((I40E_IEEE_8021QAZ_OUI << I40E_LLDP_TLV_OUI_SHIFT) |
+ I40E_IEEE_SUBTYPE_APP_PRI);
+ tlv->ouisubtype = I40E_HTONL(ouisubtype);
+
+ /* 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 (i < dcbcfg->numapps) {
+ priority = dcbcfg->app[i].priority & 0x7;
+ selector = dcbcfg->app[i].selector & 0x7;
+ buf[offset] = (priority << I40E_IEEE_APP_PRIO_SHIFT) | selector;
+ buf[offset + 1] = (dcbcfg->app[i].protocolid >> 0x8) & 0xFF;
+ buf[offset + 2] = dcbcfg->app[i].protocolid & 0xFF;
+ /* Move to next app */
+ offset += 3;
+ i++;
+ if (i >= I40E_DCBX_MAX_APPS)
+ break;
+ }
+ /* length includes size of ouisubtype + 1 reserved + 3*numapps */
+ length = sizeof(tlv->ouisubtype) + 1 + (i*3);
+ typelength = (u16)((I40E_TLV_TYPE_ORG << I40E_LLDP_TLV_TYPE_SHIFT) |
+ (length & 0x1FF));
+ tlv->typelength = I40E_HTONS(typelength);
+}
+
+ /**
+ * i40e_add_dcb_tlv - Add all IEEE TLVs
+ * @tlv: pointer to org tlv
+ *
+ * add tlv information
+ **/
+static void i40e_add_dcb_tlv(struct i40e_lldp_org_tlv *tlv,
+ struct i40e_dcbx_config *dcbcfg,
+ u16 tlvid)
+{
+ switch (tlvid) {
+ case I40E_IEEE_TLV_ID_ETS_CFG:
+ i40e_add_ieee_ets_tlv(tlv, dcbcfg);
+ break;
+ case I40E_IEEE_TLV_ID_ETS_REC:
+ i40e_add_ieee_etsrec_tlv(tlv, dcbcfg);
+ break;
+ case I40E_IEEE_TLV_ID_PFC_CFG:
+ i40e_add_ieee_pfc_tlv(tlv, dcbcfg);
+ break;
+ case I40E_IEEE_TLV_ID_APP_PRI:
+ i40e_add_ieee_app_pri_tlv(tlv, dcbcfg);
+ break;
+ default:
+ break;
+ }
+}
+
+ /**
+ * i40e_set_dcb_config - Set the local LLDP MIB to FW
+ * @hw: pointer to the hw struct
+ *
+ * Set DCB configuration to the Firmware
+ **/
+enum i40e_status_code i40e_set_dcb_config(struct i40e_hw *hw)
+{
+ enum i40e_status_code ret = I40E_SUCCESS;
+ struct i40e_dcbx_config *dcbcfg;
+ struct i40e_virt_mem mem;
+ u8 mib_type, *lldpmib;
+ u16 miblen;
+
+ /* update the hw local config */
+ dcbcfg = &hw->local_dcbx_config;
+ /* Allocate the LLDPDU */
+ ret = i40e_allocate_virt_mem(hw, &mem, I40E_LLDPDU_SIZE);
+ if (ret)
+ return ret;
+
+ mib_type = SET_LOCAL_MIB_AC_TYPE_LOCAL_MIB;
+ if (dcbcfg->app_mode == I40E_DCBX_APPS_NON_WILLING) {
+ mib_type |= SET_LOCAL_MIB_AC_TYPE_NON_WILLING_APPS <<
+ SET_LOCAL_MIB_AC_TYPE_NON_WILLING_APPS_SHIFT;
+ }
+ lldpmib = (u8 *)mem.va;
+ ret = i40e_dcb_config_to_lldp(lldpmib, &miblen, dcbcfg);
+ ret = i40e_aq_set_lldp_mib(hw, mib_type, (void *)lldpmib, miblen, NULL);
+
+ i40e_free_virt_mem(hw, &mem);
+ return ret;
+}
+
+/**
+ * i40e_dcb_config_to_lldp - Convert Dcbconfig to MIB format
+ * @hw: pointer to the hw struct
+ * @dcbcfg: store for LLDPDU data
+ *
+ * send DCB configuration to FW
+ **/
+enum i40e_status_code i40e_dcb_config_to_lldp(u8 *lldpmib, u16 *miblen,
+ struct i40e_dcbx_config *dcbcfg)
+{
+ u16 length, offset = 0, tlvid = I40E_TLV_ID_START;
+ enum i40e_status_code ret = I40E_SUCCESS;
+ struct i40e_lldp_org_tlv *tlv;
+ u16 typelength;
+
+ tlv = (struct i40e_lldp_org_tlv *)lldpmib;
+ while (1) {
+ i40e_add_dcb_tlv(tlv, dcbcfg, tlvid++);
+ typelength = I40E_NTOHS(tlv->typelength);
+ length = (u16)((typelength & I40E_LLDP_TLV_LEN_MASK) >>
+ I40E_LLDP_TLV_LEN_SHIFT);
+ if (length)
+ offset += length + 2;
+ /* END TLV or beyond LLDPDU size */
+ if ((tlvid >= I40E_TLV_ID_END_OF_LLDPPDU) ||
+ (offset > I40E_LLDPDU_SIZE))
+ break;
+ /* Move to next TLV */
+ if (length)
+ tlv = (struct i40e_lldp_org_tlv *)((char *)tlv +
+ sizeof(tlv->typelength) + length);
+ }
+ *miblen = offset;
+ 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
+ **/
+enum i40e_status_code i40e_read_lldp_cfg(struct i40e_hw *hw,
+ struct i40e_lldp_variables *lldp_cfg)
+{
+ enum i40e_status_code ret = I40E_SUCCESS;
+ u32 offset = (2 * I40E_NVM_LLDP_CFG_PTR);
+
+ if (!lldp_cfg)
+ return I40E_ERR_PARAM;
+
+ ret = i40e_acquire_nvm(hw, I40E_RESOURCE_READ);
+ if (ret != I40E_SUCCESS)
+ goto err_lldp_cfg;
+
+ ret = i40e_aq_read_nvm(hw, I40E_SR_EMP_MODULE_PTR, offset,
+ sizeof(struct i40e_lldp_variables),
+ (u8 *)lldp_cfg,
+ true, NULL);
+ i40e_release_nvm(hw);
+
+err_lldp_cfg:
+ return ret;
+}
Code Review / deb_dpdk.git / blobdiff