@@ -2,5 +2,5 @@ obj-$(CONFIG_QED) := qed.o
qed-y := qed_cxt.o qed_dev.o qed_hw.o qed_init_fw_funcs.o qed_init_ops.o \
qed_int.o qed_main.o qed_mcp.o qed_sp_commands.o qed_spq.o qed_l2.o \
- qed_selftest.o
+ qed_selftest.o qed_dcbx.o
qed-$(CONFIG_QED_SRIOV) += qed_sriov.o qed_vf.o
@@ -367,6 +367,8 @@ struct qed_hwfn {
struct qed_pf_iov *pf_iov_info;
struct qed_mcp_info *mcp_info;
+ struct qed_dcbx_info *p_dcbx_info;
+
struct qed_hw_cid_data *p_tx_cids;
struct qed_hw_cid_data *p_rx_cids;
@@ -131,6 +131,16 @@ void qed_cxt_hw_init_pf(struct qed_hwfn *p_hwfn);
void qed_qm_init_pf(struct qed_hwfn *p_hwfn);
/**
+ * @brief Reconfigures QM pf on the fly
+ *
+ * @param p_hwfn
+ * @param p_ptt
+ *
+ * @return int
+ */
+int qed_qm_reconf(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt);
+
+/**
* @brief qed_cxt_release - Release a cid
*
* @param p_hwfn
new file mode 100644
@@ -0,0 +1,562 @@
+/* QLogic qed NIC Driver
+ * Copyright (c) 2015 QLogic Corporation
+ *
+ * This software is available under the terms of the GNU General Public License
+ * (GPL) Version 2, available from the file COPYING in the main directory of
+ * this source tree.
+ */
+
+#include <linux/types.h>
+#include <asm/byteorder.h>
+#include <linux/bitops.h>
+#include <linux/errno.h>
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/string.h>
+#include "qed.h"
+#include "qed_cxt.h"
+#include "qed_dcbx.h"
+#include "qed_hsi.h"
+#include "qed_sp.h"
+
+#define QED_DCBX_MAX_MIB_READ_TRY (100)
+#define QED_ETH_TYPE_DEFAULT (0)
+#define QED_ETH_TYPE_ROCE (0x8915)
+#define QED_UDP_PORT_TYPE_ROCE_V2 (0x12B7)
+#define QED_ETH_TYPE_FCOE (0x8906)
+#define QED_TCP_PORT_ISCSI (0xCBC)
+
+#define QED_DCBX_INVALID_PRIORITY 0xFF
+
+/* Get Traffic Class from priority traffic class table, 4 bits represent
+ * the traffic class corresponding to the priority.
+ */
+#define QED_DCBX_PRIO2TC(prio_tc_tbl, prio) \
+ ((u32)(prio_tc_tbl >> ((7 - prio) * 4)) & 0x7)
+
+static const struct qed_dcbx_app_metadata qed_dcbx_app_update[] = {
+ {DCBX_PROTOCOL_ISCSI, "ISCSI", QED_PCI_DEFAULT},
+ {DCBX_PROTOCOL_FCOE, "FCOE", QED_PCI_DEFAULT},
+ {DCBX_PROTOCOL_ROCE, "ROCE", QED_PCI_DEFAULT},
+ {DCBX_PROTOCOL_ROCE_V2, "ROCE_V2", QED_PCI_DEFAULT},
+ {DCBX_PROTOCOL_ETH, "ETH", QED_PCI_ETH}
+};
+
+static bool qed_dcbx_app_ethtype(u32 app_info_bitmap)
+{
+ return !!(QED_MFW_GET_FIELD(app_info_bitmap, DCBX_APP_SF) ==
+ DCBX_APP_SF_ETHTYPE);
+}
+
+static bool qed_dcbx_app_port(u32 app_info_bitmap)
+{
+ return !!(QED_MFW_GET_FIELD(app_info_bitmap, DCBX_APP_SF) ==
+ DCBX_APP_SF_PORT);
+}
+
+static bool qed_dcbx_default_tlv(u32 app_info_bitmap, u16 proto_id)
+{
+ return !!(qed_dcbx_app_ethtype(app_info_bitmap) &&
+ proto_id == QED_ETH_TYPE_DEFAULT);
+}
+
+static bool qed_dcbx_iscsi_tlv(u32 app_info_bitmap, u16 proto_id)
+{
+ return !!(qed_dcbx_app_port(app_info_bitmap) &&
+ proto_id == QED_TCP_PORT_ISCSI);
+}
+
+static bool qed_dcbx_fcoe_tlv(u32 app_info_bitmap, u16 proto_id)
+{
+ return !!(qed_dcbx_app_ethtype(app_info_bitmap) &&
+ proto_id == QED_ETH_TYPE_FCOE);
+}
+
+static bool qed_dcbx_roce_tlv(u32 app_info_bitmap, u16 proto_id)
+{
+ return !!(qed_dcbx_app_ethtype(app_info_bitmap) &&
+ proto_id == QED_ETH_TYPE_ROCE);
+}
+
+static bool qed_dcbx_roce_v2_tlv(u32 app_info_bitmap, u16 proto_id)
+{
+ return !!(qed_dcbx_app_port(app_info_bitmap) &&
+ proto_id == QED_UDP_PORT_TYPE_ROCE_V2);
+}
+
+static void
+qed_dcbx_dp_protocol(struct qed_hwfn *p_hwfn, struct qed_dcbx_results *p_data)
+{
+ enum dcbx_protocol_type id;
+ int i;
+
+ DP_VERBOSE(p_hwfn, QED_MSG_DCB, "DCBX negotiated: %d\n",
+ p_data->dcbx_enabled);
+
+ for (i = 0; i < ARRAY_SIZE(qed_dcbx_app_update); i++) {
+ id = qed_dcbx_app_update[i].id;
+
+ DP_VERBOSE(p_hwfn, QED_MSG_DCB,
+ "%s info: update %d, enable %d, prio %d, tc %d, num_tc %d\n",
+ qed_dcbx_app_update[i].name, p_data->arr[id].update,
+ p_data->arr[id].enable, p_data->arr[id].priority,
+ p_data->arr[id].tc, p_hwfn->hw_info.num_tc);
+ }
+}
+
+static void
+qed_dcbx_set_params(struct qed_dcbx_results *p_data,
+ struct qed_hw_info *p_info,
+ bool enable,
+ bool update,
+ u8 prio,
+ u8 tc,
+ enum dcbx_protocol_type type,
+ enum qed_pci_personality personality)
+{
+ /* PF update ramrod data */
+ p_data->arr[type].update = update;
+ p_data->arr[type].enable = enable;
+ p_data->arr[type].priority = prio;
+ p_data->arr[type].tc = tc;
+
+ /* QM reconf data */
+ if (p_info->personality == personality) {
+ if (personality == QED_PCI_ETH)
+ p_info->non_offload_tc = tc;
+ else
+ p_info->offload_tc = tc;
+ }
+}
+
+/* Update app protocol data and hw_info fields with the TLV info */
+static void
+qed_dcbx_update_app_info(struct qed_dcbx_results *p_data,
+ struct qed_hwfn *p_hwfn,
+ bool enable,
+ bool update,
+ u8 prio, u8 tc, enum dcbx_protocol_type type)
+{
+ struct qed_hw_info *p_info = &p_hwfn->hw_info;
+ enum qed_pci_personality personality;
+ enum dcbx_protocol_type id;
+ char *name;
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(qed_dcbx_app_update); i++) {
+ id = qed_dcbx_app_update[i].id;
+
+ if (type != id)
+ continue;
+
+ personality = qed_dcbx_app_update[i].personality;
+ name = qed_dcbx_app_update[i].name;
+
+ qed_dcbx_set_params(p_data, p_info, enable, update,
+ prio, tc, type, personality);
+ }
+}
+
+static bool
+qed_dcbx_get_app_protocol_type(struct qed_hwfn *p_hwfn,
+ u32 app_prio_bitmap,
+ u16 id, enum dcbx_protocol_type *type)
+{
+ if (qed_dcbx_fcoe_tlv(app_prio_bitmap, id)) {
+ *type = DCBX_PROTOCOL_FCOE;
+ } else if (qed_dcbx_roce_tlv(app_prio_bitmap, id)) {
+ *type = DCBX_PROTOCOL_ROCE;
+ } else if (qed_dcbx_iscsi_tlv(app_prio_bitmap, id)) {
+ *type = DCBX_PROTOCOL_ISCSI;
+ } else if (qed_dcbx_default_tlv(app_prio_bitmap, id)) {
+ *type = DCBX_PROTOCOL_ETH;
+ } else if (qed_dcbx_roce_v2_tlv(app_prio_bitmap, id)) {
+ *type = DCBX_PROTOCOL_ROCE_V2;
+ } else {
+ *type = DCBX_MAX_PROTOCOL_TYPE;
+ DP_ERR(p_hwfn,
+ "No action required, App TLV id = 0x%x app_prio_bitmap = 0x%x\n",
+ id, app_prio_bitmap);
+ return false;
+ }
+
+ return true;
+}
+
+/* Parse app TLV's to update TC information in hw_info structure for
+ * reconfiguring QM. Get protocol specific data for PF update ramrod command.
+ */
+static int
+qed_dcbx_process_tlv(struct qed_hwfn *p_hwfn,
+ struct qed_dcbx_results *p_data,
+ struct dcbx_app_priority_entry *p_tbl,
+ u32 pri_tc_tbl, int count, bool dcbx_enabled)
+{
+ u8 tc, priority, priority_map;
+ enum dcbx_protocol_type type;
+ u16 protocol_id;
+ bool enable;
+ int i;
+
+ DP_VERBOSE(p_hwfn, QED_MSG_DCB, "Num APP entries = %d\n", count);
+
+ /* Parse APP TLV */
+ for (i = 0; i < count; i++) {
+ protocol_id = QED_MFW_GET_FIELD(p_tbl[i].entry,
+ DCBX_APP_PROTOCOL_ID);
+ priority_map = QED_MFW_GET_FIELD(p_tbl[i].entry,
+ DCBX_APP_PRI_MAP);
+ priority = ffs(priority_map) - 1;
+ if (priority < 0) {
+ DP_ERR(p_hwfn, "Invalid priority\n");
+ return -EINVAL;
+ }
+
+ tc = QED_DCBX_PRIO2TC(pri_tc_tbl, priority);
+ if (qed_dcbx_get_app_protocol_type(p_hwfn, p_tbl[i].entry,
+ protocol_id, &type)) {
+ /* ETH always have the enable bit reset, as it gets
+ * vlan information per packet. For other protocols,
+ * should be set according to the dcbx_enabled
+ * indication, but we only got here if there was an
+ * app tlv for the protocol, so dcbx must be enabled.
+ */
+ enable = !!(type == DCBX_PROTOCOL_ETH);
+
+ qed_dcbx_update_app_info(p_data, p_hwfn, enable, true,
+ priority, tc, type);
+ }
+ }
+
+ /* If RoCE-V2 TLV is not detected, driver need to use RoCE app
+ * data for RoCE-v2 not the default app data.
+ */
+ if (!p_data->arr[DCBX_PROTOCOL_ROCE_V2].update &&
+ p_data->arr[DCBX_PROTOCOL_ROCE].update) {
+ tc = p_data->arr[DCBX_PROTOCOL_ROCE].tc;
+ priority = p_data->arr[DCBX_PROTOCOL_ROCE].priority;
+ qed_dcbx_update_app_info(p_data, p_hwfn, true, true,
+ priority, tc, DCBX_PROTOCOL_ROCE_V2);
+ }
+
+ /* Update ramrod protocol data and hw_info fields
+ * with default info when corresponding APP TLV's are not detected.
+ * The enabled field has a different logic for ethernet as only for
+ * ethernet dcb should disabled by default, as the information arrives
+ * from the OS (unless an explicit app tlv was present).
+ */
+ tc = p_data->arr[DCBX_PROTOCOL_ETH].tc;
+ priority = p_data->arr[DCBX_PROTOCOL_ETH].priority;
+ for (type = 0; type < DCBX_MAX_PROTOCOL_TYPE; type++) {
+ if (p_data->arr[type].update)
+ continue;
+
+ enable = (type == DCBX_PROTOCOL_ETH) ? false : dcbx_enabled;
+ qed_dcbx_update_app_info(p_data, p_hwfn, enable, true,
+ priority, tc, type);
+ }
+
+ return 0;
+}
+
+/* Parse app TLV's to update TC information in hw_info structure for
+ * reconfiguring QM. Get protocol specific data for PF update ramrod command.
+ */
+static int qed_dcbx_process_mib_info(struct qed_hwfn *p_hwfn)
+{
+ struct dcbx_app_priority_feature *p_app;
+ struct dcbx_app_priority_entry *p_tbl;
+ struct qed_dcbx_results data = { 0 };
+ struct dcbx_ets_feature *p_ets;
+ struct qed_hw_info *p_info;
+ u32 pri_tc_tbl, flags;
+ bool dcbx_enabled;
+ int num_entries;
+ int rc = 0;
+
+ /* If DCBx version is non zero, then negotiation was
+ * successfuly performed
+ */
+ flags = p_hwfn->p_dcbx_info->operational.flags;
+ dcbx_enabled = !!QED_MFW_GET_FIELD(flags, DCBX_CONFIG_VERSION);
+
+ p_app = &p_hwfn->p_dcbx_info->operational.features.app;
+ p_tbl = p_app->app_pri_tbl;
+
+ p_ets = &p_hwfn->p_dcbx_info->operational.features.ets;
+ pri_tc_tbl = p_ets->pri_tc_tbl[0];
+
+ p_info = &p_hwfn->hw_info;
+ num_entries = QED_MFW_GET_FIELD(p_app->flags, DCBX_APP_NUM_ENTRIES);
+
+ rc = qed_dcbx_process_tlv(p_hwfn, &data, p_tbl, pri_tc_tbl,
+ num_entries, dcbx_enabled);
+ if (rc)
+ return rc;
+
+ p_info->num_tc = QED_MFW_GET_FIELD(p_ets->flags, DCBX_ETS_MAX_TCS);
+ data.pf_id = p_hwfn->rel_pf_id;
+ data.dcbx_enabled = dcbx_enabled;
+
+ qed_dcbx_dp_protocol(p_hwfn, &data);
+
+ memcpy(&p_hwfn->p_dcbx_info->results, &data,
+ sizeof(struct qed_dcbx_results));
+
+ return 0;
+}
+
+static int
+qed_dcbx_copy_mib(struct qed_hwfn *p_hwfn,
+ struct qed_ptt *p_ptt,
+ struct qed_dcbx_mib_meta_data *p_data,
+ enum qed_mib_read_type type)
+{
+ u32 prefix_seq_num, suffix_seq_num;
+ int read_count = 0;
+ int rc = 0;
+
+ /* The data is considered to be valid only if both sequence numbers are
+ * the same.
+ */
+ do {
+ if (type == QED_DCBX_REMOTE_LLDP_MIB) {
+ qed_memcpy_from(p_hwfn, p_ptt, p_data->lldp_remote,
+ p_data->addr, p_data->size);
+ prefix_seq_num = p_data->lldp_remote->prefix_seq_num;
+ suffix_seq_num = p_data->lldp_remote->suffix_seq_num;
+ } else {
+ qed_memcpy_from(p_hwfn, p_ptt, p_data->mib,
+ p_data->addr, p_data->size);
+ prefix_seq_num = p_data->mib->prefix_seq_num;
+ suffix_seq_num = p_data->mib->suffix_seq_num;
+ }
+ read_count++;
+
+ DP_VERBOSE(p_hwfn,
+ QED_MSG_DCB,
+ "mib type = %d, try count = %d prefix seq num = %d suffix seq num = %d\n",
+ type, read_count, prefix_seq_num, suffix_seq_num);
+ } while ((prefix_seq_num != suffix_seq_num) &&
+ (read_count < QED_DCBX_MAX_MIB_READ_TRY));
+
+ if (read_count >= QED_DCBX_MAX_MIB_READ_TRY) {
+ DP_ERR(p_hwfn,
+ "MIB read err, mib type = %d, try count = %d prefix seq num = %d suffix seq num = %d\n",
+ type, read_count, prefix_seq_num, suffix_seq_num);
+ rc = -EIO;
+ }
+
+ return rc;
+}
+
+static int
+qed_dcbx_read_local_lldp_mib(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
+{
+ struct qed_dcbx_mib_meta_data data;
+ int rc = 0;
+
+ memset(&data, 0, sizeof(data));
+ data.addr = p_hwfn->mcp_info->port_addr + offsetof(struct public_port,
+ lldp_config_params);
+ data.lldp_local = p_hwfn->p_dcbx_info->lldp_local;
+ data.size = sizeof(struct lldp_config_params_s);
+ qed_memcpy_from(p_hwfn, p_ptt, data.lldp_local, data.addr, data.size);
+
+ return rc;
+}
+
+static int
+qed_dcbx_read_remote_lldp_mib(struct qed_hwfn *p_hwfn,
+ struct qed_ptt *p_ptt,
+ enum qed_mib_read_type type)
+{
+ struct qed_dcbx_mib_meta_data data;
+ int rc = 0;
+
+ memset(&data, 0, sizeof(data));
+ data.addr = p_hwfn->mcp_info->port_addr + offsetof(struct public_port,
+ lldp_status_params);
+ data.lldp_remote = p_hwfn->p_dcbx_info->lldp_remote;
+ data.size = sizeof(struct lldp_status_params_s);
+ rc = qed_dcbx_copy_mib(p_hwfn, p_ptt, &data, type);
+
+ return rc;
+}
+
+static int
+qed_dcbx_read_operational_mib(struct qed_hwfn *p_hwfn,
+ struct qed_ptt *p_ptt,
+ enum qed_mib_read_type type)
+{
+ struct qed_dcbx_mib_meta_data data;
+ int rc = 0;
+
+ memset(&data, 0, sizeof(data));
+ data.addr = p_hwfn->mcp_info->port_addr +
+ offsetof(struct public_port, operational_dcbx_mib);
+ data.mib = &p_hwfn->p_dcbx_info->operational;
+ data.size = sizeof(struct dcbx_mib);
+ rc = qed_dcbx_copy_mib(p_hwfn, p_ptt, &data, type);
+
+ return rc;
+}
+
+static int
+qed_dcbx_read_remote_mib(struct qed_hwfn *p_hwfn,
+ struct qed_ptt *p_ptt, enum qed_mib_read_type type)
+{
+ struct qed_dcbx_mib_meta_data data;
+ int rc = 0;
+
+ memset(&data, 0, sizeof(data));
+ data.addr = p_hwfn->mcp_info->port_addr +
+ offsetof(struct public_port, remote_dcbx_mib);
+ data.mib = &p_hwfn->p_dcbx_info->remote;
+ data.size = sizeof(struct dcbx_mib);
+ rc = qed_dcbx_copy_mib(p_hwfn, p_ptt, &data, type);
+
+ return rc;
+}
+
+static int
+qed_dcbx_read_local_mib(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
+{
+ struct qed_dcbx_mib_meta_data data;
+ int rc = 0;
+
+ memset(&data, 0, sizeof(data));
+ data.addr = p_hwfn->mcp_info->port_addr +
+ offsetof(struct public_port, local_admin_dcbx_mib);
+ data.local_admin = &p_hwfn->p_dcbx_info->local_admin;
+ data.size = sizeof(struct dcbx_local_params);
+ qed_memcpy_from(p_hwfn, p_ptt, data.local_admin, data.addr, data.size);
+
+ return rc;
+}
+
+static int qed_dcbx_read_mib(struct qed_hwfn *p_hwfn,
+ struct qed_ptt *p_ptt, enum qed_mib_read_type type)
+{
+ int rc = -EINVAL;
+
+ switch (type) {
+ case QED_DCBX_OPERATIONAL_MIB:
+ rc = qed_dcbx_read_operational_mib(p_hwfn, p_ptt, type);
+ break;
+ case QED_DCBX_REMOTE_MIB:
+ rc = qed_dcbx_read_remote_mib(p_hwfn, p_ptt, type);
+ break;
+ case QED_DCBX_LOCAL_MIB:
+ rc = qed_dcbx_read_local_mib(p_hwfn, p_ptt);
+ break;
+ case QED_DCBX_REMOTE_LLDP_MIB:
+ rc = qed_dcbx_read_remote_lldp_mib(p_hwfn, p_ptt, type);
+ break;
+ case QED_DCBX_LOCAL_LLDP_MIB:
+ rc = qed_dcbx_read_local_lldp_mib(p_hwfn, p_ptt);
+ break;
+ default:
+ DP_ERR(p_hwfn, "MIB read err, unknown mib type %d\n", type);
+ }
+
+ return rc;
+}
+
+/* Read updated MIB.
+ * Reconfigure QM and invoke PF update ramrod command if operational MIB
+ * change is detected.
+ */
+int
+qed_dcbx_mib_update_event(struct qed_hwfn *p_hwfn,
+ struct qed_ptt *p_ptt, enum qed_mib_read_type type)
+{
+ int rc = 0;
+
+ rc = qed_dcbx_read_mib(p_hwfn, p_ptt, type);
+ if (rc)
+ return rc;
+
+ if (type == QED_DCBX_OPERATIONAL_MIB) {
+ rc = qed_dcbx_process_mib_info(p_hwfn);
+ if (!rc) {
+ /* reconfigure tcs of QM queues according
+ * to negotiation results
+ */
+ qed_qm_reconf(p_hwfn, p_ptt);
+
+ /* update storm FW with negotiation results */
+ qed_sp_pf_update(p_hwfn);
+ }
+ }
+
+ return rc;
+}
+
+int qed_dcbx_info_alloc(struct qed_hwfn *p_hwfn)
+{
+ int rc = 0;
+
+ p_hwfn->p_dcbx_info = kzalloc(sizeof(*p_hwfn->p_dcbx_info), GFP_KERNEL);
+ if (!p_hwfn->p_dcbx_info) {
+ DP_NOTICE(p_hwfn,
+ "Failed to allocate 'struct qed_dcbx_info'\n");
+ rc = -ENOMEM;
+ }
+
+ return rc;
+}
+
+void qed_dcbx_info_free(struct qed_hwfn *p_hwfn,
+ struct qed_dcbx_info *p_dcbx_info)
+{
+ kfree(p_hwfn->p_dcbx_info);
+}
+
+static void qed_dcbx_update_protocol_data(struct protocol_dcb_data *p_data,
+ struct qed_dcbx_results *p_src,
+ enum dcbx_protocol_type type)
+{
+ p_data->dcb_enable_flag = p_src->arr[type].enable;
+ p_data->dcb_priority = p_src->arr[type].priority;
+ p_data->dcb_tc = p_src->arr[type].tc;
+}
+
+/* Set pf update ramrod command params */
+void qed_dcbx_set_pf_update_params(struct qed_dcbx_results *p_src,
+ struct pf_update_ramrod_data *p_dest)
+{
+ struct protocol_dcb_data *p_dcb_data;
+ bool update_flag = false;
+
+ p_dest->pf_id = p_src->pf_id;
+
+ update_flag = p_src->arr[DCBX_PROTOCOL_FCOE].update;
+ p_dest->update_fcoe_dcb_data_flag = update_flag;
+
+ update_flag = p_src->arr[DCBX_PROTOCOL_ROCE].update;
+ p_dest->update_roce_dcb_data_flag = update_flag;
+ update_flag = p_src->arr[DCBX_PROTOCOL_ROCE_V2].update;
+ p_dest->update_roce_dcb_data_flag = update_flag;
+
+ update_flag = p_src->arr[DCBX_PROTOCOL_ISCSI].update;
+ p_dest->update_iscsi_dcb_data_flag = update_flag;
+ update_flag = p_src->arr[DCBX_PROTOCOL_ETH].update;
+ p_dest->update_eth_dcb_data_flag = update_flag;
+
+ p_dcb_data = &p_dest->fcoe_dcb_data;
+ qed_dcbx_update_protocol_data(p_dcb_data, p_src, DCBX_PROTOCOL_FCOE);
+ p_dcb_data = &p_dest->roce_dcb_data;
+
+ if (p_src->arr[DCBX_PROTOCOL_ROCE].update)
+ qed_dcbx_update_protocol_data(p_dcb_data, p_src,
+ DCBX_PROTOCOL_ROCE);
+ if (p_src->arr[DCBX_PROTOCOL_ROCE_V2].update)
+ qed_dcbx_update_protocol_data(p_dcb_data, p_src,
+ DCBX_PROTOCOL_ROCE_V2);
+
+ p_dcb_data = &p_dest->iscsi_dcb_data;
+ qed_dcbx_update_protocol_data(p_dcb_data, p_src, DCBX_PROTOCOL_ISCSI);
+ p_dcb_data = &p_dest->eth_dcb_data;
+ qed_dcbx_update_protocol_data(p_dcb_data, p_src, DCBX_PROTOCOL_ETH);
+}
new file mode 100644
@@ -0,0 +1,80 @@
+/* QLogic qed NIC Driver
+ * Copyright (c) 2015 QLogic Corporation
+ *
+ * This software is available under the terms of the GNU General Public License
+ * (GPL) Version 2, available from the file COPYING in the main directory of
+ * this source tree.
+ */
+
+#ifndef _QED_DCBX_H
+#define _QED_DCBX_H
+#include <linux/types.h>
+#include <linux/slab.h>
+#include "qed.h"
+#include "qed_hsi.h"
+#include "qed_hw.h"
+#include "qed_mcp.h"
+#include "qed_reg_addr.h"
+
+#define DCBX_CONFIG_MAX_APP_PROTOCOL 4
+
+enum qed_mib_read_type {
+ QED_DCBX_OPERATIONAL_MIB,
+ QED_DCBX_REMOTE_MIB,
+ QED_DCBX_LOCAL_MIB,
+ QED_DCBX_REMOTE_LLDP_MIB,
+ QED_DCBX_LOCAL_LLDP_MIB
+};
+
+struct qed_dcbx_app_data {
+ bool enable; /* DCB enabled */
+ bool update; /* Update indication */
+ u8 priority; /* Priority */
+ u8 tc; /* Traffic Class */
+};
+
+struct qed_dcbx_results {
+ bool dcbx_enabled;
+ u8 pf_id;
+ struct qed_dcbx_app_data arr[DCBX_MAX_PROTOCOL_TYPE];
+};
+
+struct qed_dcbx_app_metadata {
+ enum dcbx_protocol_type id;
+ char *name;
+ enum qed_pci_personality personality;
+};
+
+#define QED_MFW_GET_FIELD(name, field) \
+ (((name) & (field ## _MASK)) >> (field ## _SHIFT))
+
+struct qed_dcbx_info {
+ struct lldp_status_params_s lldp_remote[LLDP_MAX_LLDP_AGENTS];
+ struct lldp_config_params_s lldp_local[LLDP_MAX_LLDP_AGENTS];
+ struct dcbx_local_params local_admin;
+ struct qed_dcbx_results results;
+ struct dcbx_mib operational;
+ struct dcbx_mib remote;
+ u8 dcbx_cap;
+};
+
+struct qed_dcbx_mib_meta_data {
+ struct lldp_config_params_s *lldp_local;
+ struct lldp_status_params_s *lldp_remote;
+ struct dcbx_local_params *local_admin;
+ struct dcbx_mib *mib;
+ size_t size;
+ u32 addr;
+};
+
+/* QED local interface routines */
+int
+qed_dcbx_mib_update_event(struct qed_hwfn *,
+ struct qed_ptt *, enum qed_mib_read_type);
+
+int qed_dcbx_info_alloc(struct qed_hwfn *p_hwfn);
+void qed_dcbx_info_free(struct qed_hwfn *, struct qed_dcbx_info *);
+void qed_dcbx_set_pf_update_params(struct qed_dcbx_results *p_src,
+ struct pf_update_ramrod_data *p_dest);
+
+#endif
@@ -22,6 +22,7 @@
#include <linux/qed/qed_if.h>
#include "qed.h"
#include "qed_cxt.h"
+#include "qed_dcbx.h"
#include "qed_dev_api.h"
#include "qed_hsi.h"
#include "qed_hw.h"
@@ -33,6 +34,9 @@
#include "qed_sriov.h"
#include "qed_vf.h"
+static spinlock_t qm_lock;
+static bool qm_lock_init = false;
+
/* API common to all protocols */
enum BAR_ID {
BAR_ID_0, /* used for GRC */
@@ -147,6 +151,7 @@ void qed_resc_free(struct qed_dev *cdev)
qed_int_free(p_hwfn);
qed_iov_free(p_hwfn);
qed_dmae_info_free(p_hwfn);
+ qed_dcbx_info_free(p_hwfn, p_hwfn->p_dcbx_info);
}
}
@@ -200,13 +205,19 @@ static int qed_init_qm_info(struct qed_hwfn *p_hwfn)
vport_id = (u8)RESC_START(p_hwfn, QED_VPORT);
/* First init per-TC PQs */
- for (i = 0; i < multi_cos_tcs; i++, curr_queue++) {
+ for (i = 0; i < multi_cos_tcs; i++) {
struct init_qm_pq_params *params =
- &qm_info->qm_pq_params[curr_queue];
+ &qm_info->qm_pq_params[curr_queue++];
- params->vport_id = vport_id;
- params->tc_id = p_hwfn->hw_info.non_offload_tc;
- params->wrr_group = 1;
+ if (p_hwfn->hw_info.personality == QED_PCI_ETH) {
+ params->vport_id = vport_id;
+ params->tc_id = p_hwfn->hw_info.non_offload_tc;
+ params->wrr_group = 1;
+ } else {
+ params->vport_id = vport_id;
+ params->tc_id = p_hwfn->hw_info.offload_tc;
+ params->wrr_group = 1;
+ }
}
/* Then init pure-LB PQ */
@@ -266,6 +277,63 @@ alloc_err:
return -ENOMEM;
}
+/* This function reconfigures the QM pf on the fly.
+ * For this purpose we:
+ * 1. reconfigure the QM database
+ * 2. set new values to runtime arrat
+ * 3. send an sdm_qm_cmd through the rbc interface to stop the QM
+ * 4. activate init tool in QM_PF stage
+ * 5. send an sdm_qm_cmd through rbc interface to release the QM
+ */
+int qed_qm_reconf(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
+{
+ struct qed_qm_info *qm_info = &p_hwfn->qm_info;
+ bool b_rc;
+ int rc;
+
+ /* qm_info is allocated in qed_init_qm_info() which is already called
+ * from qed_resc_alloc() or previous call of qed_qm_reconf().
+ * The allocated size may change each init, so we free it before next
+ * allocation.
+ */
+ qed_qm_info_free(p_hwfn);
+
+ /* initialize qed's qm data structure */
+ rc = qed_init_qm_info(p_hwfn);
+ if (rc)
+ return rc;
+
+ /* stop PF's qm queues */
+ spin_lock_bh(&qm_lock);
+ b_rc = qed_send_qm_stop_cmd(p_hwfn, p_ptt, false, true,
+ qm_info->start_pq, qm_info->num_pqs);
+ spin_unlock_bh(&qm_lock);
+ if (!b_rc)
+ return -EINVAL;
+
+ /* clear the QM_PF runtime phase leftovers from previous init */
+ qed_init_clear_rt_data(p_hwfn);
+
+ /* prepare QM portion of runtime array */
+ qed_qm_init_pf(p_hwfn);
+
+ /* activate init tool on runtime array */
+ rc = qed_init_run(p_hwfn, p_ptt, PHASE_QM_PF, p_hwfn->rel_pf_id,
+ p_hwfn->hw_info.hw_mode);
+ if (rc)
+ return rc;
+
+ /* start PF's qm queues */
+ spin_lock_bh(&qm_lock);
+ b_rc = qed_send_qm_stop_cmd(p_hwfn, p_ptt, true, true,
+ qm_info->start_pq, qm_info->num_pqs);
+ spin_unlock_bh(&qm_lock);
+ if (!b_rc)
+ return -EINVAL;
+
+ return 0;
+}
+
int qed_resc_alloc(struct qed_dev *cdev)
{
struct qed_consq *p_consq;
@@ -375,6 +443,14 @@ int qed_resc_alloc(struct qed_dev *cdev)
"Failed to allocate memory for dmae_info structure\n");
goto alloc_err;
}
+
+ /* DCBX initialization */
+ rc = qed_dcbx_info_alloc(p_hwfn);
+ if (rc) {
+ DP_NOTICE(p_hwfn,
+ "Failed to allocate memory for dcbx structure\n");
+ goto alloc_err;
+ }
}
cdev->reset_stats = kzalloc(sizeof(*cdev->reset_stats), GFP_KERNEL);
@@ -780,6 +856,11 @@ int qed_hw_init(struct qed_dev *cdev,
p_hwfn->first_on_engine = (load_code ==
FW_MSG_CODE_DRV_LOAD_ENGINE);
+ if (!qm_lock_init) {
+ spin_lock_init(&qm_lock);
+ qm_lock_init = true;
+ }
+
switch (load_code) {
case FW_MSG_CODE_DRV_LOAD_ENGINE:
rc = qed_hw_init_common(p_hwfn, p_hwfn->p_main_ptt,
@@ -821,6 +902,20 @@ int qed_hw_init(struct qed_dev *cdev,
return mfw_rc;
}
+ /* send DCBX attention request command */
+ DP_VERBOSE(p_hwfn,
+ QED_MSG_DCB,
+ "sending phony dcbx set command to trigger DCBx attention handling\n");
+ mfw_rc = qed_mcp_cmd(p_hwfn, p_hwfn->p_main_ptt,
+ DRV_MSG_CODE_SET_DCBX,
+ 1 << DRV_MB_PARAM_DCBX_NOTIFY_SHIFT,
+ &load_code, ¶m);
+ if (mfw_rc) {
+ DP_NOTICE(p_hwfn,
+ "Failed to send DCBX attention request\n");
+ return mfw_rc;
+ }
+
p_hwfn->hw_init_done = true;
}
@@ -634,6 +634,14 @@ struct pf_start_ramrod_data {
u8 reserved0[4];
};
+/* Data for port update ramrod */
+struct protocol_dcb_data {
+ u8 dcb_enable_flag;
+ u8 dcb_priority;
+ u8 dcb_tc;
+ u8 reserved;
+};
+
/* tunnel configuration */
struct pf_update_tunnel_config {
u8 update_rx_pf_clss;
@@ -656,8 +664,17 @@ struct pf_update_tunnel_config {
};
struct pf_update_ramrod_data {
- u32 reserved[2];
- u32 reserved_1[6];
+ u8 pf_id;
+ u8 update_eth_dcb_data_flag;
+ u8 update_fcoe_dcb_data_flag;
+ u8 update_iscsi_dcb_data_flag;
+ u8 update_roce_dcb_data_flag;
+ u8 update_mf_vlan_flag;
+ __le16 mf_vlan;
+ struct protocol_dcb_data eth_dcb_data;
+ struct protocol_dcb_data fcoe_dcb_data;
+ struct protocol_dcb_data iscsi_dcb_data;
+ struct protocol_dcb_data roce_dcb_data;
struct pf_update_tunnel_config tunnel_config;
};
@@ -15,6 +15,7 @@
#include <linux/spinlock.h>
#include <linux/string.h>
#include "qed.h"
+#include "qed_dcbx.h"
#include "qed_hsi.h"
#include "qed_hw.h"
#include "qed_mcp.h"
@@ -825,6 +826,18 @@ int qed_mcp_handle_events(struct qed_hwfn *p_hwfn,
case MFW_DRV_MSG_VF_DISABLED:
qed_mcp_handle_vf_flr(p_hwfn, p_ptt);
break;
+ case MFW_DRV_MSG_LLDP_DATA_UPDATED:
+ qed_dcbx_mib_update_event(p_hwfn, p_ptt,
+ QED_DCBX_REMOTE_LLDP_MIB);
+ break;
+ case MFW_DRV_MSG_DCBX_REMOTE_MIB_UPDATED:
+ qed_dcbx_mib_update_event(p_hwfn, p_ptt,
+ QED_DCBX_REMOTE_MIB);
+ break;
+ case MFW_DRV_MSG_DCBX_OPERATIONAL_MIB_UPDATED:
+ qed_dcbx_mib_update_event(p_hwfn, p_ptt,
+ QED_DCBX_OPERATIONAL_MIB);
+ break;
case MFW_DRV_MSG_TRANSCEIVER_STATE_CHANGE:
qed_mcp_handle_transceiver_change(p_hwfn, p_ptt);
break;
@@ -354,6 +354,19 @@ int qed_sp_pf_start(struct qed_hwfn *p_hwfn,
enum qed_mf_mode mode, bool allow_npar_tx_switch);
/**
+ * @brief qed_sp_pf_update - PF Function Update Ramrod
+ *
+ * This ramrod updates function-related parameters. Every parameter can be
+ * updated independently, according to configuration flags.
+ *
+ * @param p_hwfn
+ *
+ * @return int
+ */
+
+int qed_sp_pf_update(struct qed_hwfn *p_hwfn);
+
+/**
* @brief qed_sp_pf_stop - PF Function Stop Ramrod
*
* This ramrod is sent to close a Physical Function (PF). It is the last ramrod
@@ -15,6 +15,7 @@
#include "qed.h"
#include <linux/qed/qed_chain.h>
#include "qed_cxt.h"
+#include "qed_dcbx.h"
#include "qed_hsi.h"
#include "qed_hw.h"
#include "qed_int.h"
@@ -384,6 +385,30 @@ int qed_sp_pf_start(struct qed_hwfn *p_hwfn,
return rc;
}
+int qed_sp_pf_update(struct qed_hwfn *p_hwfn)
+{
+ struct qed_spq_entry *p_ent = NULL;
+ struct qed_sp_init_data init_data;
+ int rc = -EINVAL;
+
+ /* Get SPQ entry */
+ memset(&init_data, 0, sizeof(init_data));
+ init_data.cid = qed_spq_get_cid(p_hwfn);
+ init_data.opaque_fid = p_hwfn->hw_info.opaque_fid;
+ init_data.comp_mode = QED_SPQ_MODE_CB;
+
+ rc = qed_sp_init_request(p_hwfn, &p_ent,
+ COMMON_RAMROD_PF_UPDATE, PROTOCOLID_COMMON,
+ &init_data);
+ if (rc)
+ return rc;
+
+ qed_dcbx_set_pf_update_params(&p_hwfn->p_dcbx_info->results,
+ &p_ent->ramrod.pf_update);
+
+ return qed_spq_post(p_hwfn, p_ent, NULL);
+}
+
/* Set pf update ramrod command params */
int qed_sp_pf_update_tunn_cfg(struct qed_hwfn *p_hwfn,
struct qed_tunn_update_params *p_tunn,
@@ -25,6 +25,15 @@
#include <linux/qed/common_hsi.h>
#include <linux/qed/qed_chain.h>
+enum dcbx_protocol_type {
+ DCBX_PROTOCOL_ISCSI,
+ DCBX_PROTOCOL_FCOE,
+ DCBX_PROTOCOL_ROCE,
+ DCBX_PROTOCOL_ROCE_V2,
+ DCBX_PROTOCOL_ETH,
+ DCBX_MAX_PROTOCOL_TYPE
+};
+
enum qed_led_mode {
QED_LED_MODE_OFF,
QED_LED_MODE_ON,