#include <linux/types.h>
#include <asm/byteorder.h>
#include <linux/bitops.h>
+#include <linux/dcbnl.h>
#include <linux/errno.h>
#include <linux/kernel.h>
#include <linux/slab.h>
#include "qed_dcbx.h"
#include "qed_hsi.h"
#include "qed_sp.h"
+#ifdef CONFIG_DCB
+#include <linux/qed/qed_eth_if.h>
+#endif
#define QED_DCBX_MAX_MIB_READ_TRY (100)
#define QED_ETH_TYPE_DEFAULT (0)
return 0;
}
+
+static struct qed_dcbx_get *qed_dcbnl_get_dcbx(struct qed_hwfn *hwfn,
+ enum qed_mib_read_type type)
+{
+ struct qed_dcbx_get *dcbx_info;
+
+ dcbx_info = kmalloc(sizeof(*dcbx_info), GFP_KERNEL);
+ if (!dcbx_info) {
+ DP_ERR(hwfn->cdev, "Failed to allocate memory for dcbx_info\n");
+ return NULL;
+ }
+
+ if (qed_dcbx_query_params(hwfn, dcbx_info, type)) {
+ kfree(dcbx_info);
+ return NULL;
+ }
+
+ if ((type == QED_DCBX_OPERATIONAL_MIB) &&
+ !dcbx_info->operational.enabled) {
+ DP_INFO(hwfn, "DCBX is not enabled/operational\n");
+ kfree(dcbx_info);
+ return NULL;
+ }
+
+ return dcbx_info;
+}
+
+static u8 qed_dcbnl_getstate(struct qed_dev *cdev)
+{
+ struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
+ struct qed_dcbx_get *dcbx_info;
+ bool enabled;
+
+ dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
+ if (!dcbx_info)
+ return 0;
+
+ enabled = dcbx_info->operational.enabled;
+ DP_VERBOSE(hwfn, QED_MSG_DCB, "DCB state = %d\n", enabled);
+ kfree(dcbx_info);
+
+ return enabled;
+}
+
+static u8 qed_dcbnl_setstate(struct qed_dev *cdev, u8 state)
+{
+ struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
+ struct qed_dcbx_set dcbx_set;
+ struct qed_ptt *ptt;
+ int rc;
+
+ DP_VERBOSE(hwfn, QED_MSG_DCB, "DCB state = %d\n", state);
+
+ memset(&dcbx_set, 0, sizeof(dcbx_set));
+ rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
+ if (rc)
+ return 1;
+
+ dcbx_set.enabled = !!state;
+
+ ptt = qed_ptt_acquire(hwfn);
+ if (!ptt)
+ return 1;
+
+ rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
+
+ qed_ptt_release(hwfn, ptt);
+
+ return rc ? 1 : 0;
+}
+
+static void qed_dcbnl_getpgtccfgtx(struct qed_dev *cdev, int tc, u8 *prio_type,
+ u8 *pgid, u8 *bw_pct, u8 *up_map)
+{
+ struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
+ struct qed_dcbx_get *dcbx_info;
+
+ DP_VERBOSE(hwfn, QED_MSG_DCB, "tc = %d\n", tc);
+ *prio_type = *pgid = *bw_pct = *up_map = 0;
+ if (tc < 0 || tc >= QED_MAX_PFC_PRIORITIES) {
+ DP_INFO(hwfn, "Invalid tc %d\n", tc);
+ return;
+ }
+
+ dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
+ if (!dcbx_info)
+ return;
+
+ *pgid = dcbx_info->operational.params.ets_pri_tc_tbl[tc];
+ kfree(dcbx_info);
+}
+
+static void qed_dcbnl_getpgbwgcfgtx(struct qed_dev *cdev, int pgid, u8 *bw_pct)
+{
+ struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
+ struct qed_dcbx_get *dcbx_info;
+
+ *bw_pct = 0;
+ DP_VERBOSE(hwfn, QED_MSG_DCB, "pgid = %d\n", pgid);
+ if (pgid < 0 || pgid >= QED_MAX_PFC_PRIORITIES) {
+ DP_INFO(hwfn, "Invalid pgid %d\n", pgid);
+ return;
+ }
+
+ dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
+ if (!dcbx_info)
+ return;
+
+ *bw_pct = dcbx_info->operational.params.ets_tc_bw_tbl[pgid];
+ DP_VERBOSE(hwfn, QED_MSG_DCB, "bw_pct = %d\n", *bw_pct);
+ kfree(dcbx_info);
+}
+
+static void qed_dcbnl_getpgtccfgrx(struct qed_dev *cdev, int tc, u8 *prio,
+ u8 *bwg_id, u8 *bw_pct, u8 *up_map)
+{
+ DP_INFO(QED_LEADING_HWFN(cdev), "Rx ETS is not supported\n");
+ *prio = *bwg_id = *bw_pct = *up_map = 0;
+}
+
+static void qed_dcbnl_getpgbwgcfgrx(struct qed_dev *cdev,
+ int bwg_id, u8 *bw_pct)
+{
+ DP_INFO(QED_LEADING_HWFN(cdev), "Rx ETS is not supported\n");
+ *bw_pct = 0;
+}
+
+static void qed_dcbnl_getpfccfg(struct qed_dev *cdev,
+ int priority, u8 *setting)
+{
+ struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
+ struct qed_dcbx_get *dcbx_info;
+
+ DP_VERBOSE(hwfn, QED_MSG_DCB, "priority = %d\n", priority);
+ if (priority < 0 || priority >= QED_MAX_PFC_PRIORITIES) {
+ DP_INFO(hwfn, "Invalid priority %d\n", priority);
+ return;
+ }
+
+ dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
+ if (!dcbx_info)
+ return;
+
+ *setting = dcbx_info->operational.params.pfc.prio[priority];
+ DP_VERBOSE(hwfn, QED_MSG_DCB, "setting = %d\n", *setting);
+ kfree(dcbx_info);
+}
+
+static void qed_dcbnl_setpfccfg(struct qed_dev *cdev, int priority, u8 setting)
+{
+ struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
+ struct qed_dcbx_set dcbx_set;
+ struct qed_ptt *ptt;
+ int rc;
+
+ DP_VERBOSE(hwfn, QED_MSG_DCB, "priority = %d setting = %d\n",
+ priority, setting);
+ if (priority < 0 || priority >= QED_MAX_PFC_PRIORITIES) {
+ DP_INFO(hwfn, "Invalid priority %d\n", priority);
+ return;
+ }
+
+ memset(&dcbx_set, 0, sizeof(dcbx_set));
+ rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
+ if (rc)
+ return;
+
+ dcbx_set.override_flags |= QED_DCBX_OVERRIDE_PFC_CFG;
+ dcbx_set.config.params.pfc.prio[priority] = !!setting;
+
+ ptt = qed_ptt_acquire(hwfn);
+ if (!ptt)
+ return;
+
+ rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
+
+ qed_ptt_release(hwfn, ptt);
+}
+
+static u8 qed_dcbnl_getcap(struct qed_dev *cdev, int capid, u8 *cap)
+{
+ struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
+ struct qed_dcbx_get *dcbx_info;
+ int rc = 0;
+
+ DP_VERBOSE(hwfn, QED_MSG_DCB, "capid = %d\n", capid);
+ dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
+ if (!dcbx_info)
+ return 1;
+
+ switch (capid) {
+ case DCB_CAP_ATTR_PG:
+ case DCB_CAP_ATTR_PFC:
+ case DCB_CAP_ATTR_UP2TC:
+ case DCB_CAP_ATTR_GSP:
+ *cap = true;
+ break;
+ case DCB_CAP_ATTR_PG_TCS:
+ case DCB_CAP_ATTR_PFC_TCS:
+ *cap = 0x80;
+ break;
+ case DCB_CAP_ATTR_DCBX:
+ *cap = (DCB_CAP_DCBX_LLD_MANAGED | DCB_CAP_DCBX_VER_CEE |
+ DCB_CAP_DCBX_VER_IEEE);
+ break;
+ default:
+ *cap = false;
+ rc = 1;
+ }
+
+ DP_VERBOSE(hwfn, QED_MSG_DCB, "id = %d caps = %d\n", capid, *cap);
+ kfree(dcbx_info);
+
+ return rc;
+}
+
+static int qed_dcbnl_getnumtcs(struct qed_dev *cdev, int tcid, u8 *num)
+{
+ struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
+ struct qed_dcbx_get *dcbx_info;
+ int rc = 0;
+
+ DP_VERBOSE(hwfn, QED_MSG_DCB, "tcid = %d\n", tcid);
+ dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
+ if (!dcbx_info)
+ return -EINVAL;
+
+ switch (tcid) {
+ case DCB_NUMTCS_ATTR_PG:
+ *num = dcbx_info->operational.params.max_ets_tc;
+ break;
+ case DCB_NUMTCS_ATTR_PFC:
+ *num = dcbx_info->operational.params.pfc.max_tc;
+ break;
+ default:
+ rc = -EINVAL;
+ }
+
+ kfree(dcbx_info);
+ DP_VERBOSE(hwfn, QED_MSG_DCB, "numtcs = %d\n", *num);
+
+ return rc;
+}
+
+static u8 qed_dcbnl_getpfcstate(struct qed_dev *cdev)
+{
+ struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
+ struct qed_dcbx_get *dcbx_info;
+ bool enabled;
+
+ dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
+ if (!dcbx_info)
+ return 0;
+
+ enabled = dcbx_info->operational.params.pfc.enabled;
+ DP_VERBOSE(hwfn, QED_MSG_DCB, "pfc state = %d\n", enabled);
+ kfree(dcbx_info);
+
+ return enabled;
+}
+
+static u8 qed_dcbnl_getdcbx(struct qed_dev *cdev)
+{
+ struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
+ struct qed_dcbx_get *dcbx_info;
+ u8 mode = 0;
+
+ dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
+ if (!dcbx_info)
+ return 0;
+
+ if (dcbx_info->operational.enabled)
+ mode |= DCB_CAP_DCBX_LLD_MANAGED;
+ if (dcbx_info->operational.ieee)
+ mode |= DCB_CAP_DCBX_VER_IEEE;
+ if (dcbx_info->operational.cee)
+ mode |= DCB_CAP_DCBX_VER_CEE;
+
+ DP_VERBOSE(hwfn, QED_MSG_DCB, "dcb mode = %d\n", mode);
+ kfree(dcbx_info);
+
+ return mode;
+}
+
+static void qed_dcbnl_setpgtccfgtx(struct qed_dev *cdev,
+ int tc,
+ u8 pri_type, u8 pgid, u8 bw_pct, u8 up_map)
+{
+ struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
+ struct qed_dcbx_set dcbx_set;
+ struct qed_ptt *ptt;
+ int rc;
+
+ DP_VERBOSE(hwfn, QED_MSG_DCB,
+ "tc = %d pri_type = %d pgid = %d bw_pct = %d up_map = %d\n",
+ tc, pri_type, pgid, bw_pct, up_map);
+
+ if (tc < 0 || tc >= QED_MAX_PFC_PRIORITIES) {
+ DP_INFO(hwfn, "Invalid tc %d\n", tc);
+ return;
+ }
+
+ memset(&dcbx_set, 0, sizeof(dcbx_set));
+ rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
+ if (rc)
+ return;
+
+ dcbx_set.override_flags |= QED_DCBX_OVERRIDE_ETS_CFG;
+ dcbx_set.config.params.ets_pri_tc_tbl[tc] = pgid;
+
+ ptt = qed_ptt_acquire(hwfn);
+ if (!ptt)
+ return;
+
+ rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
+
+ qed_ptt_release(hwfn, ptt);
+}
+
+static void qed_dcbnl_setpgtccfgrx(struct qed_dev *cdev, int prio,
+ u8 pri_type, u8 pgid, u8 bw_pct, u8 up_map)
+{
+ DP_INFO(QED_LEADING_HWFN(cdev), "Rx ETS is not supported\n");
+}
+
+static void qed_dcbnl_setpgbwgcfgtx(struct qed_dev *cdev, int pgid, u8 bw_pct)
+{
+ struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
+ struct qed_dcbx_set dcbx_set;
+ struct qed_ptt *ptt;
+ int rc;
+
+ DP_VERBOSE(hwfn, QED_MSG_DCB, "pgid = %d bw_pct = %d\n", pgid, bw_pct);
+ if (pgid < 0 || pgid >= QED_MAX_PFC_PRIORITIES) {
+ DP_INFO(hwfn, "Invalid pgid %d\n", pgid);
+ return;
+ }
+
+ memset(&dcbx_set, 0, sizeof(dcbx_set));
+ rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
+ if (rc)
+ return;
+
+ dcbx_set.override_flags |= QED_DCBX_OVERRIDE_ETS_CFG;
+ dcbx_set.config.params.ets_tc_bw_tbl[pgid] = bw_pct;
+
+ ptt = qed_ptt_acquire(hwfn);
+ if (!ptt)
+ return;
+
+ rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
+
+ qed_ptt_release(hwfn, ptt);
+}
+
+static void qed_dcbnl_setpgbwgcfgrx(struct qed_dev *cdev, int pgid, u8 bw_pct)
+{
+ DP_INFO(QED_LEADING_HWFN(cdev), "Rx ETS is not supported\n");
+}
+
+static u8 qed_dcbnl_setall(struct qed_dev *cdev)
+{
+ struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
+ struct qed_dcbx_set dcbx_set;
+ struct qed_ptt *ptt;
+ int rc;
+
+ memset(&dcbx_set, 0, sizeof(dcbx_set));
+ rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
+ if (rc)
+ return 1;
+
+ ptt = qed_ptt_acquire(hwfn);
+ if (!ptt)
+ return 1;
+
+ rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 1);
+
+ qed_ptt_release(hwfn, ptt);
+
+ return rc;
+}
+
+static int qed_dcbnl_setnumtcs(struct qed_dev *cdev, int tcid, u8 num)
+{
+ struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
+ struct qed_dcbx_set dcbx_set;
+ struct qed_ptt *ptt;
+ int rc;
+
+ DP_VERBOSE(hwfn, QED_MSG_DCB, "tcid = %d num = %d\n", tcid, num);
+ memset(&dcbx_set, 0, sizeof(dcbx_set));
+ rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
+ if (rc)
+ return 1;
+
+ switch (tcid) {
+ case DCB_NUMTCS_ATTR_PG:
+ dcbx_set.override_flags |= QED_DCBX_OVERRIDE_ETS_CFG;
+ dcbx_set.config.params.max_ets_tc = num;
+ break;
+ case DCB_NUMTCS_ATTR_PFC:
+ dcbx_set.override_flags |= QED_DCBX_OVERRIDE_PFC_CFG;
+ dcbx_set.config.params.pfc.max_tc = num;
+ break;
+ default:
+ DP_INFO(hwfn, "Invalid tcid %d\n", tcid);
+ return -EINVAL;
+ }
+
+ ptt = qed_ptt_acquire(hwfn);
+ if (!ptt)
+ return -EINVAL;
+
+ rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
+
+ qed_ptt_release(hwfn, ptt);
+
+ return 0;
+}
+
+static void qed_dcbnl_setpfcstate(struct qed_dev *cdev, u8 state)
+{
+ struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
+ struct qed_dcbx_set dcbx_set;
+ struct qed_ptt *ptt;
+ int rc;
+
+ DP_VERBOSE(hwfn, QED_MSG_DCB, "new state = %d\n", state);
+
+ memset(&dcbx_set, 0, sizeof(dcbx_set));
+ rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
+ if (rc)
+ return;
+
+ dcbx_set.override_flags |= QED_DCBX_OVERRIDE_PFC_CFG;
+ dcbx_set.config.params.pfc.enabled = !!state;
+
+ ptt = qed_ptt_acquire(hwfn);
+ if (!ptt)
+ return;
+
+ rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
+
+ qed_ptt_release(hwfn, ptt);
+}
+
+static int qed_dcbnl_getapp(struct qed_dev *cdev, u8 idtype, u16 idval)
+{
+ struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
+ struct qed_dcbx_get *dcbx_info;
+ struct qed_app_entry *entry;
+ bool ethtype;
+ u8 prio = 0;
+ int i;
+
+ dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
+ if (!dcbx_info)
+ return -EINVAL;
+
+ ethtype = !!(idtype == DCB_APP_IDTYPE_ETHTYPE);
+ for (i = 0; i < QED_DCBX_MAX_APP_PROTOCOL; i++) {
+ entry = &dcbx_info->operational.params.app_entry[i];
+ if ((entry->ethtype == ethtype) && (entry->proto_id == idval)) {
+ prio = entry->prio;
+ break;
+ }
+ }
+
+ if (i == QED_DCBX_MAX_APP_PROTOCOL) {
+ DP_ERR(cdev, "App entry (%d, %d) not found\n", idtype, idval);
+ kfree(dcbx_info);
+ return -EINVAL;
+ }
+
+ kfree(dcbx_info);
+
+ return prio;
+}
+
+static int qed_dcbnl_setapp(struct qed_dev *cdev,
+ u8 idtype, u16 idval, u8 pri_map)
+{
+ struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
+ struct qed_dcbx_set dcbx_set;
+ struct qed_app_entry *entry;
+ struct qed_ptt *ptt;
+ bool ethtype;
+ int rc, i;
+
+ memset(&dcbx_set, 0, sizeof(dcbx_set));
+ rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
+ if (rc)
+ return -EINVAL;
+
+ ethtype = !!(idtype == DCB_APP_IDTYPE_ETHTYPE);
+ for (i = 0; i < QED_DCBX_MAX_APP_PROTOCOL; i++) {
+ entry = &dcbx_set.config.params.app_entry[i];
+ if ((entry->ethtype == ethtype) && (entry->proto_id == idval))
+ break;
+ /* First empty slot */
+ if (!entry->proto_id)
+ break;
+ }
+
+ if (i == QED_DCBX_MAX_APP_PROTOCOL) {
+ DP_ERR(cdev, "App table is full\n");
+ return -EBUSY;
+ }
+
+ dcbx_set.override_flags |= QED_DCBX_OVERRIDE_APP_CFG;
+ dcbx_set.config.params.app_entry[i].ethtype = ethtype;
+ dcbx_set.config.params.app_entry[i].proto_id = idval;
+ dcbx_set.config.params.app_entry[i].prio = pri_map;
+
+ ptt = qed_ptt_acquire(hwfn);
+ if (!ptt)
+ return -EBUSY;
+
+ rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
+
+ qed_ptt_release(hwfn, ptt);
+
+ return rc;
+}
+
+static u8 qed_dcbnl_setdcbx(struct qed_dev *cdev, u8 mode)
+{
+ struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
+ struct qed_dcbx_set dcbx_set;
+ struct qed_ptt *ptt;
+ int rc;
+
+ DP_VERBOSE(hwfn, QED_MSG_DCB, "new mode = %x\n", mode);
+
+ if (!(mode & DCB_CAP_DCBX_VER_IEEE) && !(mode & DCB_CAP_DCBX_VER_CEE)) {
+ DP_INFO(hwfn, "Allowed mode is cee, ieee or both\n");
+ return 1;
+ }
+
+ memset(&dcbx_set, 0, sizeof(dcbx_set));
+ rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
+ if (rc)
+ return 1;
+
+ dcbx_set.ver_num = 0;
+ if (mode & DCB_CAP_DCBX_VER_CEE) {
+ dcbx_set.ver_num |= DCBX_CONFIG_VERSION_CEE;
+ dcbx_set.enabled = true;
+ }
+
+ if (mode & DCB_CAP_DCBX_VER_IEEE) {
+ dcbx_set.ver_num |= DCBX_CONFIG_VERSION_IEEE;
+ dcbx_set.enabled = true;
+ }
+
+ ptt = qed_ptt_acquire(hwfn);
+ if (!ptt)
+ return 1;
+
+ rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
+
+ qed_ptt_release(hwfn, ptt);
+
+ return 0;
+}
+
+static u8 qed_dcbnl_getfeatcfg(struct qed_dev *cdev, int featid, u8 *flags)
+{
+ struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
+ struct qed_dcbx_get *dcbx_info;
+
+ DP_VERBOSE(hwfn, QED_MSG_DCB, "Feature id = %d\n", featid);
+ dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
+ if (!dcbx_info)
+ return 1;
+
+ *flags = 0;
+ switch (featid) {
+ case DCB_FEATCFG_ATTR_PG:
+ if (dcbx_info->operational.params.ets_enabled)
+ *flags = DCB_FEATCFG_ENABLE;
+ else
+ *flags = DCB_FEATCFG_ERROR;
+ break;
+ case DCB_FEATCFG_ATTR_PFC:
+ if (dcbx_info->operational.params.pfc.enabled)
+ *flags = DCB_FEATCFG_ENABLE;
+ else
+ *flags = DCB_FEATCFG_ERROR;
+ break;
+ case DCB_FEATCFG_ATTR_APP:
+ if (dcbx_info->operational.params.app_valid)
+ *flags = DCB_FEATCFG_ENABLE;
+ else
+ *flags = DCB_FEATCFG_ERROR;
+ break;
+ default:
+ DP_INFO(hwfn, "Invalid feature-ID %d\n", featid);
+ kfree(dcbx_info);
+ return 1;
+ }
+
+ DP_VERBOSE(hwfn, QED_MSG_DCB, "flags = %d\n", *flags);
+ kfree(dcbx_info);
+
+ return 0;
+}
+
+static u8 qed_dcbnl_setfeatcfg(struct qed_dev *cdev, int featid, u8 flags)
+{
+ struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
+ struct qed_dcbx_set dcbx_set;
+ bool enabled, willing;
+ struct qed_ptt *ptt;
+ int rc;
+
+ DP_VERBOSE(hwfn, QED_MSG_DCB, "featid = %d flags = %d\n",
+ featid, flags);
+ memset(&dcbx_set, 0, sizeof(dcbx_set));
+ rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
+ if (rc)
+ return 1;
+
+ enabled = !!(flags & DCB_FEATCFG_ENABLE);
+ willing = !!(flags & DCB_FEATCFG_WILLING);
+ switch (featid) {
+ case DCB_FEATCFG_ATTR_PG:
+ dcbx_set.override_flags |= QED_DCBX_OVERRIDE_ETS_CFG;
+ dcbx_set.config.params.ets_enabled = enabled;
+ dcbx_set.config.params.ets_willing = willing;
+ break;
+ case DCB_FEATCFG_ATTR_PFC:
+ dcbx_set.override_flags |= QED_DCBX_OVERRIDE_PFC_CFG;
+ dcbx_set.config.params.pfc.enabled = enabled;
+ dcbx_set.config.params.pfc.willing = willing;
+ break;
+ case DCB_FEATCFG_ATTR_APP:
+ dcbx_set.override_flags |= QED_DCBX_OVERRIDE_APP_CFG;
+ dcbx_set.config.params.app_willing = willing;
+ break;
+ default:
+ DP_INFO(hwfn, "Invalid feature-ID %d\n", featid);
+ return 1;
+ }
+
+ ptt = qed_ptt_acquire(hwfn);
+ if (!ptt)
+ return 1;
+
+ rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
+
+ qed_ptt_release(hwfn, ptt);
+
+ return 0;
+}
+
+static int qed_dcbnl_peer_getappinfo(struct qed_dev *cdev,
+ struct dcb_peer_app_info *info,
+ u16 *app_count)
+{
+ struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
+ struct qed_dcbx_get *dcbx_info;
+
+ dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_REMOTE_MIB);
+ if (!dcbx_info)
+ return -EINVAL;
+
+ info->willing = dcbx_info->remote.params.app_willing;
+ info->error = dcbx_info->remote.params.app_error;
+ *app_count = dcbx_info->remote.params.num_app_entries;
+ kfree(dcbx_info);
+
+ return 0;
+}
+
+static int qed_dcbnl_peer_getapptable(struct qed_dev *cdev,
+ struct dcb_app *table)
+{
+ struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
+ struct qed_dcbx_get *dcbx_info;
+ int i;
+
+ dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_REMOTE_MIB);
+ if (!dcbx_info)
+ return -EINVAL;
+
+ for (i = 0; i < dcbx_info->remote.params.num_app_entries; i++) {
+ if (dcbx_info->remote.params.app_entry[i].ethtype)
+ table[i].selector = DCB_APP_IDTYPE_ETHTYPE;
+ else
+ table[i].selector = DCB_APP_IDTYPE_PORTNUM;
+ table[i].priority = dcbx_info->remote.params.app_entry[i].prio;
+ table[i].protocol =
+ dcbx_info->remote.params.app_entry[i].proto_id;
+ }
+
+ kfree(dcbx_info);
+
+ return 0;
+}
+
+static int qed_dcbnl_cee_peer_getpfc(struct qed_dev *cdev, struct cee_pfc *pfc)
+{
+ struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
+ struct qed_dcbx_get *dcbx_info;
+ int i;
+
+ dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_REMOTE_MIB);
+ if (!dcbx_info)
+ return -EINVAL;
+
+ for (i = 0; i < QED_MAX_PFC_PRIORITIES; i++)
+ if (dcbx_info->remote.params.pfc.prio[i])
+ pfc->pfc_en |= BIT(i);
+
+ pfc->tcs_supported = dcbx_info->remote.params.pfc.max_tc;
+ DP_VERBOSE(hwfn, QED_MSG_DCB, "pfc state = %d tcs_supported = %d\n",
+ pfc->pfc_en, pfc->tcs_supported);
+ kfree(dcbx_info);
+
+ return 0;
+}
+
+static int qed_dcbnl_cee_peer_getpg(struct qed_dev *cdev, struct cee_pg *pg)
+{
+ struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
+ struct qed_dcbx_get *dcbx_info;
+ int i;
+
+ dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_REMOTE_MIB);
+ if (!dcbx_info)
+ return -EINVAL;
+
+ pg->willing = dcbx_info->remote.params.ets_willing;
+ for (i = 0; i < QED_MAX_PFC_PRIORITIES; i++) {
+ pg->pg_bw[i] = dcbx_info->remote.params.ets_tc_bw_tbl[i];
+ pg->prio_pg[i] = dcbx_info->remote.params.ets_pri_tc_tbl[i];
+ }
+
+ DP_VERBOSE(hwfn, QED_MSG_DCB, "willing = %d", pg->willing);
+ kfree(dcbx_info);
+
+ return 0;
+}
+
+static int qed_dcbnl_get_ieee_pfc(struct qed_dev *cdev,
+ struct ieee_pfc *pfc, bool remote)
+{
+ struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
+ struct qed_dcbx_params *params;
+ struct qed_dcbx_get *dcbx_info;
+ int rc, i;
+
+ dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
+ if (!dcbx_info)
+ return -EINVAL;
+
+ if (!dcbx_info->operational.ieee) {
+ DP_INFO(hwfn, "DCBX is not enabled/operational in IEEE mode\n");
+ return -EINVAL;
+ }
+
+ if (remote) {
+ memset(dcbx_info, 0, sizeof(*dcbx_info));
+ rc = qed_dcbx_query_params(hwfn, dcbx_info,
+ QED_DCBX_REMOTE_MIB);
+ if (rc) {
+ kfree(dcbx_info);
+ return -EINVAL;
+ }
+
+ params = &dcbx_info->remote.params;
+ } else {
+ params = &dcbx_info->operational.params;
+ }
+
+ pfc->pfc_cap = params->pfc.max_tc;
+ pfc->pfc_en = 0;
+ for (i = 0; i < QED_MAX_PFC_PRIORITIES; i++)
+ if (params->pfc.prio[i])
+ pfc->pfc_en |= BIT(i);
+
+ kfree(dcbx_info);
+
+ return 0;
+}
+
+static int qed_dcbnl_ieee_getpfc(struct qed_dev *cdev, struct ieee_pfc *pfc)
+{
+ return qed_dcbnl_get_ieee_pfc(cdev, pfc, false);
+}
+
+static int qed_dcbnl_ieee_setpfc(struct qed_dev *cdev, struct ieee_pfc *pfc)
+{
+ struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
+ struct qed_dcbx_get *dcbx_info;
+ struct qed_dcbx_set dcbx_set;
+ struct qed_ptt *ptt;
+ int rc, i;
+
+ dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
+ if (!dcbx_info)
+ return -EINVAL;
+
+ if (!dcbx_info->operational.ieee) {
+ DP_INFO(hwfn, "DCBX is not enabled/operational in IEEE mode\n");
+ kfree(dcbx_info);
+ return -EINVAL;
+ }
+
+ kfree(dcbx_info);
+
+ memset(&dcbx_set, 0, sizeof(dcbx_set));
+ rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
+ if (rc)
+ return -EINVAL;
+
+ dcbx_set.override_flags |= QED_DCBX_OVERRIDE_PFC_CFG;
+ for (i = 0; i < QED_MAX_PFC_PRIORITIES; i++)
+ dcbx_set.config.params.pfc.prio[i] = !!(pfc->pfc_en & BIT(i));
+
+ ptt = qed_ptt_acquire(hwfn);
+ if (!ptt)
+ return -EINVAL;
+
+ rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
+
+ qed_ptt_release(hwfn, ptt);
+
+ return rc;
+}
+
+static int qed_dcbnl_get_ieee_ets(struct qed_dev *cdev,
+ struct ieee_ets *ets, bool remote)
+{
+ struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
+ struct qed_dcbx_get *dcbx_info;
+ struct qed_dcbx_params *params;
+ int rc;
+
+ dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
+ if (!dcbx_info)
+ return -EINVAL;
+
+ if (!dcbx_info->operational.ieee) {
+ DP_INFO(hwfn, "DCBX is not enabled/operational in IEEE mode\n");
+ kfree(dcbx_info);
+ return -EINVAL;
+ }
+
+ if (remote) {
+ memset(dcbx_info, 0, sizeof(*dcbx_info));
+ rc = qed_dcbx_query_params(hwfn, dcbx_info,
+ QED_DCBX_REMOTE_MIB);
+ if (rc) {
+ kfree(dcbx_info);
+ return -EINVAL;
+ }
+
+ params = &dcbx_info->remote.params;
+ } else {
+ params = &dcbx_info->operational.params;
+ }
+
+ ets->ets_cap = params->max_ets_tc;
+ ets->willing = params->ets_willing;
+ ets->cbs = params->ets_cbs;
+ memcpy(ets->tc_tx_bw, params->ets_tc_bw_tbl, sizeof(ets->tc_tx_bw));
+ memcpy(ets->tc_tsa, params->ets_tc_tsa_tbl, sizeof(ets->tc_tsa));
+ memcpy(ets->prio_tc, params->ets_pri_tc_tbl, sizeof(ets->prio_tc));
+ kfree(dcbx_info);
+
+ return 0;
+}
+
+static int qed_dcbnl_ieee_getets(struct qed_dev *cdev, struct ieee_ets *ets)
+{
+ return qed_dcbnl_get_ieee_ets(cdev, ets, false);
+}
+
+static int qed_dcbnl_ieee_setets(struct qed_dev *cdev, struct ieee_ets *ets)
+{
+ struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
+ struct qed_dcbx_get *dcbx_info;
+ struct qed_dcbx_set dcbx_set;
+ struct qed_ptt *ptt;
+ int rc;
+
+ dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
+ if (!dcbx_info)
+ return -EINVAL;
+
+ if (!dcbx_info->operational.ieee) {
+ DP_INFO(hwfn, "DCBX is not enabled/operational in IEEE mode\n");
+ kfree(dcbx_info);
+ return -EINVAL;
+ }
+
+ kfree(dcbx_info);
+
+ memset(&dcbx_set, 0, sizeof(dcbx_set));
+ rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
+ if (rc)
+ return -EINVAL;
+
+ dcbx_set.override_flags |= QED_DCBX_OVERRIDE_ETS_CFG;
+ dcbx_set.config.params.max_ets_tc = ets->ets_cap;
+ dcbx_set.config.params.ets_willing = ets->willing;
+ dcbx_set.config.params.ets_cbs = ets->cbs;
+ memcpy(dcbx_set.config.params.ets_tc_bw_tbl, ets->tc_tx_bw,
+ sizeof(ets->tc_tx_bw));
+ memcpy(dcbx_set.config.params.ets_tc_tsa_tbl, ets->tc_tsa,
+ sizeof(ets->tc_tsa));
+ memcpy(dcbx_set.config.params.ets_pri_tc_tbl, ets->prio_tc,
+ sizeof(ets->prio_tc));
+
+ ptt = qed_ptt_acquire(hwfn);
+ if (!ptt)
+ return -EINVAL;
+
+ rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
+
+ qed_ptt_release(hwfn, ptt);
+
+ return rc;
+}
+
+int qed_dcbnl_ieee_peer_getets(struct qed_dev *cdev, struct ieee_ets *ets)
+{
+ return qed_dcbnl_get_ieee_ets(cdev, ets, true);
+}
+
+int qed_dcbnl_ieee_peer_getpfc(struct qed_dev *cdev, struct ieee_pfc *pfc)
+{
+ return qed_dcbnl_get_ieee_pfc(cdev, pfc, true);
+}
+
+int qed_dcbnl_ieee_getapp(struct qed_dev *cdev, struct dcb_app *app)
+{
+ struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
+ struct qed_dcbx_get *dcbx_info;
+ struct qed_app_entry *entry;
+ bool ethtype;
+ u8 prio = 0;
+ int i;
+
+ dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
+ if (!dcbx_info)
+ return -EINVAL;
+
+ if (!dcbx_info->operational.ieee) {
+ DP_INFO(hwfn, "DCBX is not enabled/operational in IEEE mode\n");
+ kfree(dcbx_info);
+ return -EINVAL;
+ }
+
+ /* ieee defines the selector field value for ethertype to be 1 */
+ ethtype = !!((app->selector - 1) == DCB_APP_IDTYPE_ETHTYPE);
+ for (i = 0; i < QED_DCBX_MAX_APP_PROTOCOL; i++) {
+ entry = &dcbx_info->operational.params.app_entry[i];
+ if ((entry->ethtype == ethtype) &&
+ (entry->proto_id == app->protocol)) {
+ prio = entry->prio;
+ break;
+ }
+ }
+
+ if (i == QED_DCBX_MAX_APP_PROTOCOL) {
+ DP_ERR(cdev, "App entry (%d, %d) not found\n", app->selector,
+ app->protocol);
+ kfree(dcbx_info);
+ return -EINVAL;
+ }
+
+ app->priority = ffs(prio) - 1;
+
+ kfree(dcbx_info);
+
+ return 0;
+}
+
+int qed_dcbnl_ieee_setapp(struct qed_dev *cdev, struct dcb_app *app)
+{
+ struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
+ struct qed_dcbx_get *dcbx_info;
+ struct qed_dcbx_set dcbx_set;
+ struct qed_app_entry *entry;
+ struct qed_ptt *ptt;
+ bool ethtype;
+ int rc, i;
+
+ if (app->priority < 0 || app->priority >= QED_MAX_PFC_PRIORITIES) {
+ DP_INFO(hwfn, "Invalid priority %d\n", app->priority);
+ return -EINVAL;
+ }
+
+ dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
+ if (!dcbx_info)
+ return -EINVAL;
+
+ if (!dcbx_info->operational.ieee) {
+ DP_INFO(hwfn, "DCBX is not enabled/operational in IEEE mode\n");
+ kfree(dcbx_info);
+ return -EINVAL;
+ }
+
+ kfree(dcbx_info);
+
+ memset(&dcbx_set, 0, sizeof(dcbx_set));
+ rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
+ if (rc)
+ return -EINVAL;
+
+ /* ieee defines the selector field value for ethertype to be 1 */
+ ethtype = !!((app->selector - 1) == DCB_APP_IDTYPE_ETHTYPE);
+ for (i = 0; i < QED_DCBX_MAX_APP_PROTOCOL; i++) {
+ entry = &dcbx_set.config.params.app_entry[i];
+ if ((entry->ethtype == ethtype) &&
+ (entry->proto_id == app->protocol))
+ break;
+ /* First empty slot */
+ if (!entry->proto_id)
+ break;
+ }
+
+ if (i == QED_DCBX_MAX_APP_PROTOCOL) {
+ DP_ERR(cdev, "App table is full\n");
+ return -EBUSY;
+ }
+
+ dcbx_set.override_flags |= QED_DCBX_OVERRIDE_APP_CFG;
+ dcbx_set.config.params.app_entry[i].ethtype = ethtype;
+ dcbx_set.config.params.app_entry[i].proto_id = app->protocol;
+ dcbx_set.config.params.app_entry[i].prio = BIT(app->priority);
+
+ ptt = qed_ptt_acquire(hwfn);
+ if (!ptt)
+ return -EBUSY;
+
+ rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
+
+ qed_ptt_release(hwfn, ptt);
+
+ return rc;
+}
+
+const struct qed_eth_dcbnl_ops qed_dcbnl_ops_pass = {
+ .getstate = qed_dcbnl_getstate,
+ .setstate = qed_dcbnl_setstate,
+ .getpgtccfgtx = qed_dcbnl_getpgtccfgtx,
+ .getpgbwgcfgtx = qed_dcbnl_getpgbwgcfgtx,
+ .getpgtccfgrx = qed_dcbnl_getpgtccfgrx,
+ .getpgbwgcfgrx = qed_dcbnl_getpgbwgcfgrx,
+ .getpfccfg = qed_dcbnl_getpfccfg,
+ .setpfccfg = qed_dcbnl_setpfccfg,
+ .getcap = qed_dcbnl_getcap,
+ .getnumtcs = qed_dcbnl_getnumtcs,
+ .getpfcstate = qed_dcbnl_getpfcstate,
+ .getdcbx = qed_dcbnl_getdcbx,
+ .setpgtccfgtx = qed_dcbnl_setpgtccfgtx,
+ .setpgtccfgrx = qed_dcbnl_setpgtccfgrx,
+ .setpgbwgcfgtx = qed_dcbnl_setpgbwgcfgtx,
+ .setpgbwgcfgrx = qed_dcbnl_setpgbwgcfgrx,
+ .setall = qed_dcbnl_setall,
+ .setnumtcs = qed_dcbnl_setnumtcs,
+ .setpfcstate = qed_dcbnl_setpfcstate,
+ .setapp = qed_dcbnl_setapp,
+ .setdcbx = qed_dcbnl_setdcbx,
+ .setfeatcfg = qed_dcbnl_setfeatcfg,
+ .getfeatcfg = qed_dcbnl_getfeatcfg,
+ .getapp = qed_dcbnl_getapp,
+ .peer_getappinfo = qed_dcbnl_peer_getappinfo,
+ .peer_getapptable = qed_dcbnl_peer_getapptable,
+ .cee_peer_getpfc = qed_dcbnl_cee_peer_getpfc,
+ .cee_peer_getpg = qed_dcbnl_cee_peer_getpg,
+ .ieee_getpfc = qed_dcbnl_ieee_getpfc,
+ .ieee_setpfc = qed_dcbnl_ieee_setpfc,
+ .ieee_getets = qed_dcbnl_ieee_getets,
+ .ieee_setets = qed_dcbnl_ieee_setets,
+ .ieee_peer_getpfc = qed_dcbnl_ieee_peer_getpfc,
+ .ieee_peer_getets = qed_dcbnl_ieee_peer_getets,
+ .ieee_getapp = qed_dcbnl_ieee_getapp,
+ .ieee_setapp = qed_dcbnl_ieee_setapp,
+};
+
#endif
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