--- /dev/null
+/*
+ * BSD LICENSE
+ *
+ * Copyright (C) Cavium networks Ltd. 2017.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * 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.
+ * * Neither the name of Cavium networks 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 <rte_atomic.h>
+#include <rte_common.h>
+#include <rte_eal.h>
+#include <rte_io.h>
+#include <rte_pci.h>
+
+#include "ssovf_evdev.h"
+
+struct ssovf_res {
+ uint16_t domain;
+ uint16_t vfid;
+ void *bar0;
+ void *bar2;
+};
+
+struct ssowvf_res {
+ uint16_t domain;
+ uint16_t vfid;
+ void *bar0;
+ void *bar2;
+ void *bar4;
+};
+
+struct ssowvf_identify {
+ uint16_t domain;
+ uint16_t vfid;
+};
+
+struct ssodev {
+ uint8_t total_ssovfs;
+ uint8_t total_ssowvfs;
+ struct ssovf_res grp[SSO_MAX_VHGRP];
+ struct ssowvf_res hws[SSO_MAX_VHWS];
+};
+
+static struct ssodev sdev;
+
+/* Interface functions */
+int
+octeontx_ssovf_info(struct octeontx_ssovf_info *info)
+{
+ uint8_t i;
+ uint16_t domain;
+
+ if (rte_eal_process_type() != RTE_PROC_PRIMARY || info == NULL)
+ return -EINVAL;
+
+ if (sdev.total_ssovfs == 0 || sdev.total_ssowvfs == 0)
+ return -ENODEV;
+
+ domain = sdev.grp[0].domain;
+ for (i = 0; i < sdev.total_ssovfs; i++) {
+ /* Check vfid's are contiguous and belong to same domain */
+ if (sdev.grp[i].vfid != i ||
+ sdev.grp[i].bar0 == NULL ||
+ sdev.grp[i].domain != domain) {
+ ssovf_log_err("GRP error, vfid=%d/%d domain=%d/%d %p",
+ i, sdev.grp[i].vfid,
+ domain, sdev.grp[i].domain,
+ sdev.grp[i].bar0);
+ return -EINVAL;
+ }
+ }
+
+ for (i = 0; i < sdev.total_ssowvfs; i++) {
+ /* Check vfid's are contiguous and belong to same domain */
+ if (sdev.hws[i].vfid != i ||
+ sdev.hws[i].bar0 == NULL ||
+ sdev.hws[i].domain != domain) {
+ ssovf_log_err("HWS error, vfid=%d/%d domain=%d/%d %p",
+ i, sdev.hws[i].vfid,
+ domain, sdev.hws[i].domain,
+ sdev.hws[i].bar0);
+ return -EINVAL;
+ }
+ }
+
+ info->domain = domain;
+ info->total_ssovfs = sdev.total_ssovfs;
+ info->total_ssowvfs = sdev.total_ssowvfs;
+ return 0;
+}
+
+void*
+octeontx_ssovf_bar(enum octeontx_ssovf_type type, uint8_t id, uint8_t bar)
+{
+ if (rte_eal_process_type() != RTE_PROC_PRIMARY ||
+ type > OCTEONTX_SSO_HWS)
+ return NULL;
+
+ if (type == OCTEONTX_SSO_GROUP) {
+ if (id >= sdev.total_ssovfs)
+ return NULL;
+ } else {
+ if (id >= sdev.total_ssowvfs)
+ return NULL;
+ }
+
+ if (type == OCTEONTX_SSO_GROUP) {
+ switch (bar) {
+ case 0:
+ return sdev.grp[id].bar0;
+ case 2:
+ return sdev.grp[id].bar2;
+ default:
+ return NULL;
+ }
+ } else {
+ switch (bar) {
+ case 0:
+ return sdev.hws[id].bar0;
+ case 2:
+ return sdev.hws[id].bar2;
+ case 4:
+ return sdev.hws[id].bar4;
+ default:
+ return NULL;
+ }
+ }
+}
+
+/* SSOWVF pcie device aka event port probe */
+
+static int
+ssowvf_probe(struct rte_pci_driver *pci_drv, struct rte_pci_device *pci_dev)
+{
+ uint16_t vfid;
+ struct ssowvf_res *res;
+ struct ssowvf_identify *id;
+
+ RTE_SET_USED(pci_drv);
+
+ /* For secondary processes, the primary has done all the work */
+ if (rte_eal_process_type() != RTE_PROC_PRIMARY)
+ return 0;
+
+ if (pci_dev->mem_resource[0].addr == NULL ||
+ pci_dev->mem_resource[2].addr == NULL ||
+ pci_dev->mem_resource[4].addr == NULL) {
+ ssovf_log_err("Empty bars %p %p %p",
+ pci_dev->mem_resource[0].addr,
+ pci_dev->mem_resource[2].addr,
+ pci_dev->mem_resource[4].addr);
+ return -ENODEV;
+ }
+
+ if (pci_dev->mem_resource[4].len != SSOW_BAR4_LEN) {
+ ssovf_log_err("Bar4 len mismatch %d != %d",
+ SSOW_BAR4_LEN, (int)pci_dev->mem_resource[4].len);
+ return -EINVAL;
+ }
+
+ id = pci_dev->mem_resource[4].addr;
+ vfid = id->vfid;
+ if (vfid >= SSO_MAX_VHWS) {
+ ssovf_log_err("Invalid vfid(%d/%d)", vfid, SSO_MAX_VHWS);
+ return -EINVAL;
+ }
+
+ res = &sdev.hws[vfid];
+ res->vfid = vfid;
+ res->bar0 = pci_dev->mem_resource[0].addr;
+ res->bar2 = pci_dev->mem_resource[2].addr;
+ res->bar4 = pci_dev->mem_resource[4].addr;
+ res->domain = id->domain;
+
+ sdev.total_ssowvfs++;
+ rte_wmb();
+ ssovf_log_dbg("Domain=%d hws=%d total_ssowvfs=%d", res->domain,
+ res->vfid, sdev.total_ssowvfs);
+ return 0;
+}
+
+static const struct rte_pci_id pci_ssowvf_map[] = {
+ {
+ RTE_PCI_DEVICE(PCI_VENDOR_ID_CAVIUM,
+ PCI_DEVICE_ID_OCTEONTX_SSOWS_VF)
+ },
+ {
+ .vendor_id = 0,
+ },
+};
+
+static struct rte_pci_driver pci_ssowvf = {
+ .id_table = pci_ssowvf_map,
+ .drv_flags = RTE_PCI_DRV_NEED_MAPPING,
+ .probe = ssowvf_probe,
+};
+
+RTE_PMD_REGISTER_PCI(octeontx_ssowvf, pci_ssowvf);
+
+/* SSOVF pcie device aka event queue probe */
+
+static int
+ssovf_probe(struct rte_pci_driver *pci_drv, struct rte_pci_device *pci_dev)
+{
+ uint64_t val;
+ uint16_t vfid;
+ uint8_t *idreg;
+ struct ssovf_res *res;
+
+ RTE_SET_USED(pci_drv);
+
+ /* For secondary processes, the primary has done all the work */
+ if (rte_eal_process_type() != RTE_PROC_PRIMARY)
+ return 0;
+
+ if (pci_dev->mem_resource[0].addr == NULL ||
+ pci_dev->mem_resource[2].addr == NULL) {
+ ssovf_log_err("Empty bars %p %p",
+ pci_dev->mem_resource[0].addr,
+ pci_dev->mem_resource[2].addr);
+ return -ENODEV;
+ }
+ idreg = pci_dev->mem_resource[0].addr;
+ idreg += SSO_VHGRP_AQ_THR;
+ val = rte_read64(idreg);
+
+ /* Write back the default value of aq_thr */
+ rte_write64((1ULL << 33) - 1, idreg);
+ vfid = (val >> 16) & 0xffff;
+ if (vfid >= SSO_MAX_VHGRP) {
+ ssovf_log_err("Invalid vfid (%d/%d)", vfid, SSO_MAX_VHGRP);
+ return -EINVAL;
+ }
+
+ res = &sdev.grp[vfid];
+ res->vfid = vfid;
+ res->bar0 = pci_dev->mem_resource[0].addr;
+ res->bar2 = pci_dev->mem_resource[2].addr;
+ res->domain = val & 0xffff;
+
+ sdev.total_ssovfs++;
+ rte_wmb();
+ ssovf_log_dbg("Domain=%d group=%d total_ssovfs=%d", res->domain,
+ res->vfid, sdev.total_ssovfs);
+ return 0;
+}
+
+static const struct rte_pci_id pci_ssovf_map[] = {
+ {
+ RTE_PCI_DEVICE(PCI_VENDOR_ID_CAVIUM,
+ PCI_DEVICE_ID_OCTEONTX_SSOGRP_VF)
+ },
+ {
+ .vendor_id = 0,
+ },
+};
+
+static struct rte_pci_driver pci_ssovf = {
+ .id_table = pci_ssovf_map,
+ .drv_flags = RTE_PCI_DRV_NEED_MAPPING,
+ .probe = ssovf_probe,
+};
+
+RTE_PMD_REGISTER_PCI(octeontx_ssovf, pci_ssovf);
Code Review / deb_dpdk.git / blobdiff