+ if (rte_eal_process_type() == RTE_PROC_PRIMARY) {
+ /* Registering LSC interrupt handler */
+ rte_intr_callback_register(&pci_dev->intr_handle,
+ nfp_net_dev_interrupt_handler,
+ (void *)eth_dev);
+ /* Telling the firmware about the LSC interrupt entry */
+ nn_cfg_writeb(hw, NFP_NET_CFG_LSC, NFP_NET_IRQ_LSC_IDX);
+ /* Recording current stats counters values */
+ nfp_net_stats_reset(eth_dev);
+ }
+
+ return 0;
+
+dev_err_queues_map:
+ nfp_cpp_area_free(hw->hwqueues_area);
+dev_err_ctrl_map:
+ nfp_cpp_area_free(hw->ctrl_area);
+
+ return err;
+}
+
+#define NFP_CPP_MEMIO_BOUNDARY (1 << 20)
+
+/*
+ * Serving a write request to NFP from host programs. The request
+ * sends the write size and the CPP target. The bridge makes use
+ * of CPP interface handler configured by the PMD setup.
+ */
+static int
+nfp_cpp_bridge_serve_write(int sockfd, struct nfp_cpp *cpp)
+{
+ struct nfp_cpp_area *area;
+ off_t offset, nfp_offset;
+ uint32_t cpp_id, pos, len;
+ uint32_t tmpbuf[16];
+ size_t count, curlen, totlen = 0;
+ int err = 0;
+
+ PMD_CPP_LOG(DEBUG, "%s: offset size %lu, count_size: %lu\n", __func__,
+ sizeof(off_t), sizeof(size_t));
+
+ /* Reading the count param */
+ err = recv(sockfd, &count, sizeof(off_t), 0);
+ if (err != sizeof(off_t))
+ return -EINVAL;
+
+ curlen = count;
+
+ /* Reading the offset param */
+ err = recv(sockfd, &offset, sizeof(off_t), 0);
+ if (err != sizeof(off_t))
+ return -EINVAL;
+
+ /* Obtain target's CPP ID and offset in target */
+ cpp_id = (offset >> 40) << 8;
+ nfp_offset = offset & ((1ull << 40) - 1);
+
+ PMD_CPP_LOG(DEBUG, "%s: count %lu and offset %ld\n", __func__, count,
+ offset);
+ PMD_CPP_LOG(DEBUG, "%s: cpp_id %08x and nfp_offset %ld\n", __func__,
+ cpp_id, nfp_offset);
+
+ /* Adjust length if not aligned */
+ if (((nfp_offset + (off_t)count - 1) & ~(NFP_CPP_MEMIO_BOUNDARY - 1)) !=
+ (nfp_offset & ~(NFP_CPP_MEMIO_BOUNDARY - 1))) {
+ curlen = NFP_CPP_MEMIO_BOUNDARY -
+ (nfp_offset & (NFP_CPP_MEMIO_BOUNDARY - 1));
+ }
+
+ while (count > 0) {
+ /* configure a CPP PCIe2CPP BAR for mapping the CPP target */
+ area = nfp_cpp_area_alloc_with_name(cpp, cpp_id, "nfp.cdev",
+ nfp_offset, curlen);
+ if (!area) {
+ RTE_LOG(ERR, PMD, "%s: area alloc fail\n", __func__);
+ return -EIO;
+ }
+
+ /* mapping the target */
+ err = nfp_cpp_area_acquire(area);
+ if (err < 0) {
+ RTE_LOG(ERR, PMD, "area acquire failed\n");
+ nfp_cpp_area_free(area);
+ return -EIO;
+ }
+
+ for (pos = 0; pos < curlen; pos += len) {
+ len = curlen - pos;
+ if (len > sizeof(tmpbuf))
+ len = sizeof(tmpbuf);
+
+ PMD_CPP_LOG(DEBUG, "%s: Receive %u of %lu\n", __func__,
+ len, count);
+ err = recv(sockfd, tmpbuf, len, MSG_WAITALL);
+ if (err != (int)len) {
+ RTE_LOG(ERR, PMD,
+ "%s: error when receiving, %d of %lu\n",
+ __func__, err, count);
+ nfp_cpp_area_release(area);
+ nfp_cpp_area_free(area);
+ return -EIO;
+ }
+ err = nfp_cpp_area_write(area, pos, tmpbuf, len);
+ if (err < 0) {
+ RTE_LOG(ERR, PMD, "nfp_cpp_area_write error\n");
+ nfp_cpp_area_release(area);
+ nfp_cpp_area_free(area);
+ return -EIO;
+ }
+ }
+
+ nfp_offset += pos;
+ totlen += pos;
+ nfp_cpp_area_release(area);
+ nfp_cpp_area_free(area);
+
+ count -= pos;
+ curlen = (count > NFP_CPP_MEMIO_BOUNDARY) ?
+ NFP_CPP_MEMIO_BOUNDARY : count;
+ }
+
+ return 0;
+}
+
+/*
+ * Serving a read request to NFP from host programs. The request
+ * sends the read size and the CPP target. The bridge makes use
+ * of CPP interface handler configured by the PMD setup. The read
+ * data is sent to the requester using the same socket.
+ */
+static int
+nfp_cpp_bridge_serve_read(int sockfd, struct nfp_cpp *cpp)
+{
+ struct nfp_cpp_area *area;
+ off_t offset, nfp_offset;
+ uint32_t cpp_id, pos, len;
+ uint32_t tmpbuf[16];
+ size_t count, curlen, totlen = 0;
+ int err = 0;
+
+ PMD_CPP_LOG(DEBUG, "%s: offset size %lu, count_size: %lu\n", __func__,
+ sizeof(off_t), sizeof(size_t));
+
+ /* Reading the count param */
+ err = recv(sockfd, &count, sizeof(off_t), 0);
+ if (err != sizeof(off_t))
+ return -EINVAL;
+
+ curlen = count;
+
+ /* Reading the offset param */
+ err = recv(sockfd, &offset, sizeof(off_t), 0);
+ if (err != sizeof(off_t))
+ return -EINVAL;
+
+ /* Obtain target's CPP ID and offset in target */
+ cpp_id = (offset >> 40) << 8;
+ nfp_offset = offset & ((1ull << 40) - 1);
+
+ PMD_CPP_LOG(DEBUG, "%s: count %lu and offset %ld\n", __func__, count,
+ offset);
+ PMD_CPP_LOG(DEBUG, "%s: cpp_id %08x and nfp_offset %ld\n", __func__,
+ cpp_id, nfp_offset);
+
+ /* Adjust length if not aligned */
+ if (((nfp_offset + (off_t)count - 1) & ~(NFP_CPP_MEMIO_BOUNDARY - 1)) !=
+ (nfp_offset & ~(NFP_CPP_MEMIO_BOUNDARY - 1))) {
+ curlen = NFP_CPP_MEMIO_BOUNDARY -
+ (nfp_offset & (NFP_CPP_MEMIO_BOUNDARY - 1));
+ }
+
+ while (count > 0) {
+ area = nfp_cpp_area_alloc_with_name(cpp, cpp_id, "nfp.cdev",
+ nfp_offset, curlen);
+ if (!area) {
+ RTE_LOG(ERR, PMD, "%s: area alloc failed\n", __func__);
+ return -EIO;
+ }
+
+ err = nfp_cpp_area_acquire(area);
+ if (err < 0) {
+ RTE_LOG(ERR, PMD, "area acquire failed\n");
+ nfp_cpp_area_free(area);
+ return -EIO;
+ }
+
+ for (pos = 0; pos < curlen; pos += len) {
+ len = curlen - pos;
+ if (len > sizeof(tmpbuf))
+ len = sizeof(tmpbuf);
+
+ err = nfp_cpp_area_read(area, pos, tmpbuf, len);
+ if (err < 0) {
+ RTE_LOG(ERR, PMD, "nfp_cpp_area_read error\n");
+ nfp_cpp_area_release(area);
+ nfp_cpp_area_free(area);
+ return -EIO;
+ }
+ PMD_CPP_LOG(DEBUG, "%s: sending %u of %lu\n", __func__,
+ len, count);
+
+ err = send(sockfd, tmpbuf, len, 0);
+ if (err != (int)len) {
+ RTE_LOG(ERR, PMD,
+ "%s: error when sending: %d of %lu\n",
+ __func__, err, count);
+ nfp_cpp_area_release(area);
+ nfp_cpp_area_free(area);
+ return -EIO;
+ }
+ }
+
+ nfp_offset += pos;
+ totlen += pos;
+ nfp_cpp_area_release(area);
+ nfp_cpp_area_free(area);
+
+ count -= pos;
+ curlen = (count > NFP_CPP_MEMIO_BOUNDARY) ?
+ NFP_CPP_MEMIO_BOUNDARY : count;
+ }
+ return 0;
+}
+
+#define NFP_IOCTL 'n'
+#define NFP_IOCTL_CPP_IDENTIFICATION _IOW(NFP_IOCTL, 0x8f, uint32_t)
+/*
+ * Serving a ioctl command from host NFP tools. This usually goes to
+ * a kernel driver char driver but it is not available when the PF is
+ * bound to the PMD. Currently just one ioctl command is served and it
+ * does not require any CPP access at all.
+ */
+static int
+nfp_cpp_bridge_serve_ioctl(int sockfd, struct nfp_cpp *cpp)
+{
+ uint32_t cmd, ident_size, tmp;
+ int err;
+
+ /* Reading now the IOCTL command */
+ err = recv(sockfd, &cmd, 4, 0);
+ if (err != 4) {
+ RTE_LOG(ERR, PMD, "%s: read error from socket\n", __func__);
+ return -EIO;
+ }
+
+ /* Only supporting NFP_IOCTL_CPP_IDENTIFICATION */
+ if (cmd != NFP_IOCTL_CPP_IDENTIFICATION) {
+ RTE_LOG(ERR, PMD, "%s: unknown cmd %d\n", __func__, cmd);
+ return -EINVAL;
+ }
+
+ err = recv(sockfd, &ident_size, 4, 0);
+ if (err != 4) {
+ RTE_LOG(ERR, PMD, "%s: read error from socket\n", __func__);
+ return -EIO;
+ }
+
+ tmp = nfp_cpp_model(cpp);
+
+ PMD_CPP_LOG(DEBUG, "%s: sending NFP model %08x\n", __func__, tmp);
+
+ err = send(sockfd, &tmp, 4, 0);
+ if (err != 4) {
+ RTE_LOG(ERR, PMD, "%s: error writing to socket\n", __func__);
+ return -EIO;
+ }
+
+ tmp = cpp->interface;
+
+ PMD_CPP_LOG(DEBUG, "%s: sending NFP interface %08x\n", __func__, tmp);
+
+ err = send(sockfd, &tmp, 4, 0);
+ if (err != 4) {
+ RTE_LOG(ERR, PMD, "%s: error writing to socket\n", __func__);
+ return -EIO;
+ }
+
+ return 0;
+}
+
+#define NFP_BRIDGE_OP_READ 20
+#define NFP_BRIDGE_OP_WRITE 30
+#define NFP_BRIDGE_OP_IOCTL 40
+
+/*
+ * This is the code to be executed by a service core. The CPP bridge interface
+ * is based on a unix socket and requests usually received by a kernel char
+ * driver, read, write and ioctl, are handled by the CPP bridge. NFP host tools
+ * can be executed with a wrapper library and LD_LIBRARY being completely
+ * unaware of the CPP bridge performing the NFP kernel char driver for CPP
+ * accesses.
+ */
+static int32_t
+nfp_cpp_bridge_service_func(void *args)
+{
+ struct sockaddr address;
+ struct nfp_cpp *cpp = args;
+ int sockfd, datafd, op, ret;
+
+ unlink("/tmp/nfp_cpp");
+ sockfd = socket(AF_UNIX, SOCK_STREAM, 0);
+ if (sockfd < 0) {
+ RTE_LOG(ERR, PMD, "%s: socket creation error. Service failed\n",
+ __func__);
+ return -EIO;
+ }
+
+ memset(&address, 0, sizeof(struct sockaddr));
+
+ address.sa_family = AF_UNIX;
+ strcpy(address.sa_data, "/tmp/nfp_cpp");
+
+ ret = bind(sockfd, (const struct sockaddr *)&address,
+ sizeof(struct sockaddr));
+ if (ret < 0) {
+ RTE_LOG(ERR, PMD, "%s: bind error (%d). Service failed\n",
+ __func__, errno);
+ close(sockfd);
+ return ret;
+ }
+
+ ret = listen(sockfd, 20);
+ if (ret < 0) {
+ RTE_LOG(ERR, PMD, "%s: listen error(%d). Service failed\n",
+ __func__, errno);
+ close(sockfd);
+ return ret;
+ }
+
+ for (;;) {
+ datafd = accept(sockfd, NULL, NULL);
+ if (datafd < 0) {
+ RTE_LOG(ERR, PMD, "%s: accept call error (%d)\n",
+ __func__, errno);
+ RTE_LOG(ERR, PMD, "%s: service failed\n", __func__);
+ close(sockfd);
+ return -EIO;
+ }
+
+ while (1) {
+ ret = recv(datafd, &op, 4, 0);
+ if (ret <= 0) {
+ PMD_CPP_LOG(DEBUG, "%s: socket close\n",
+ __func__);
+ break;
+ }
+
+ PMD_CPP_LOG(DEBUG, "%s: getting op %u\n", __func__, op);
+
+ if (op == NFP_BRIDGE_OP_READ)
+ nfp_cpp_bridge_serve_read(datafd, cpp);
+
+ if (op == NFP_BRIDGE_OP_WRITE)
+ nfp_cpp_bridge_serve_write(datafd, cpp);
+
+ if (op == NFP_BRIDGE_OP_IOCTL)
+ nfp_cpp_bridge_serve_ioctl(datafd, cpp);
+
+ if (op == 0)
+ break;
+ }
+ close(datafd);
+ }
+ close(sockfd);
+
+ return 0;
+}
+
+static int
+nfp_pf_create_dev(struct rte_pci_device *dev, int port, int ports,
+ struct nfp_cpp *cpp, struct nfp_hwinfo *hwinfo,
+ int phys_port, struct nfp_rtsym_table *sym_tbl, void **priv)
+{
+ struct rte_eth_dev *eth_dev;
+ struct nfp_net_hw *hw = NULL;
+ char *port_name;
+ struct rte_service_spec service;
+ int retval;
+
+ port_name = rte_zmalloc("nfp_pf_port_name", 100, 0);
+ if (!port_name)
+ return -ENOMEM;
+
+ if (ports > 1)
+ snprintf(port_name, 100, "%s_port%d", dev->device.name, port);
+ else
+ strlcat(port_name, dev->device.name, 100);
+
+
+ if (rte_eal_process_type() == RTE_PROC_PRIMARY) {
+ eth_dev = rte_eth_dev_allocate(port_name);
+ if (!eth_dev) {
+ rte_free(port_name);
+ return -ENODEV;
+ }
+ if (port == 0) {
+ *priv = rte_zmalloc(port_name,
+ sizeof(struct nfp_net_adapter) *
+ ports, RTE_CACHE_LINE_SIZE);
+ if (!*priv) {
+ rte_free(port_name);
+ rte_eth_dev_release_port(eth_dev);
+ return -ENOMEM;
+ }
+ }
+ eth_dev->data->dev_private = *priv;
+
+ /*
+ * dev_private pointing to port0 dev_private because we need
+ * to configure vNIC bars based on port0 at nfp_net_init.
+ * Then dev_private is adjusted per port.
+ */
+ hw = (struct nfp_net_hw *)(eth_dev->data->dev_private) + port;
+ hw->cpp = cpp;
+ hw->hwinfo = hwinfo;
+ hw->sym_tbl = sym_tbl;
+ hw->pf_port_idx = phys_port;
+ hw->is_pf = 1;
+ if (ports > 1)
+ hw->pf_multiport_enabled = 1;
+
+ hw->total_ports = ports;
+ } else {
+ eth_dev = rte_eth_dev_attach_secondary(port_name);
+ if (!eth_dev) {
+ RTE_LOG(ERR, EAL, "secondary process attach failed, "
+ "ethdev doesn't exist");
+ rte_free(port_name);
+ return -ENODEV;
+ }
+ eth_dev->process_private = cpp;
+ }
+
+ eth_dev->device = &dev->device;
+ rte_eth_copy_pci_info(eth_dev, dev);
+
+ retval = nfp_net_init(eth_dev);
+
+ if (retval) {
+ retval = -ENODEV;
+ goto probe_failed;
+ } else {
+ rte_eth_dev_probing_finish(eth_dev);
+ }
+
+ rte_free(port_name);
+
+ if (port == 0) {
+ /*
+ * The rte_service needs to be created just once per PMD.
+ * And the cpp handler needs to be linked to the service.
+ * Secondary processes will be used for debugging DPDK apps
+ * when requiring to use the CPP interface for accessing NFP
+ * components. And the cpp handler for secondary processes is
+ * available at this point.
+ */
+ memset(&service, 0, sizeof(struct rte_service_spec));
+ snprintf(service.name, sizeof(service.name), "nfp_cpp_service");
+ service.callback = nfp_cpp_bridge_service_func;
+ service.callback_userdata = (void *)cpp;
+
+ hw = (struct nfp_net_hw *)(eth_dev->data->dev_private);
+
+ if (rte_service_component_register(&service,
+ &hw->nfp_cpp_service_id))
+ RTE_LOG(ERR, PMD, "NFP CPP bridge service register() failed");
+ else
+ RTE_LOG(DEBUG, PMD, "NFP CPP bridge service registered");
+ }
+
+ return retval;
+
+probe_failed:
+ rte_free(port_name);
+ /* free ports private data if primary process */
+ if (rte_eal_process_type() == RTE_PROC_PRIMARY)
+ rte_free(eth_dev->data->dev_private);
+
+ rte_eth_dev_release_port(eth_dev);
+
+ return retval;
+}
+
+#define DEFAULT_FW_PATH "/lib/firmware/netronome"
+
+static int
+nfp_fw_upload(struct rte_pci_device *dev, struct nfp_nsp *nsp, char *card)
+{
+ struct nfp_cpp *cpp = nsp->cpp;
+ int fw_f;
+ char *fw_buf;
+ char fw_name[125];
+ char serial[40];
+ struct stat file_stat;
+ off_t fsize, bytes;
+
+ /* Looking for firmware file in order of priority */
+
+ /* First try to find a firmware image specific for this device */
+ snprintf(serial, sizeof(serial),
+ "serial-%02x-%02x-%02x-%02x-%02x-%02x-%02x-%02x",
+ cpp->serial[0], cpp->serial[1], cpp->serial[2], cpp->serial[3],
+ cpp->serial[4], cpp->serial[5], cpp->interface >> 8,
+ cpp->interface & 0xff);
+
+ snprintf(fw_name, sizeof(fw_name), "%s/%s.nffw", DEFAULT_FW_PATH,
+ serial);
+
+ PMD_DRV_LOG(DEBUG, "Trying with fw file: %s", fw_name);
+ fw_f = open(fw_name, O_RDONLY);
+ if (fw_f >= 0)
+ goto read_fw;
+
+ /* Then try the PCI name */
+ snprintf(fw_name, sizeof(fw_name), "%s/pci-%s.nffw", DEFAULT_FW_PATH,
+ dev->device.name);
+
+ PMD_DRV_LOG(DEBUG, "Trying with fw file: %s", fw_name);
+ fw_f = open(fw_name, O_RDONLY);
+ if (fw_f >= 0)
+ goto read_fw;
+
+ /* Finally try the card type and media */
+ snprintf(fw_name, sizeof(fw_name), "%s/%s", DEFAULT_FW_PATH, card);
+ PMD_DRV_LOG(DEBUG, "Trying with fw file: %s", fw_name);
+ fw_f = open(fw_name, O_RDONLY);
+ if (fw_f < 0) {
+ PMD_DRV_LOG(INFO, "Firmware file %s not found.", fw_name);
+ return -ENOENT;
+ }
+
+read_fw:
+ if (fstat(fw_f, &file_stat) < 0) {
+ PMD_DRV_LOG(INFO, "Firmware file %s size is unknown", fw_name);
+ close(fw_f);
+ return -ENOENT;
+ }
+
+ fsize = file_stat.st_size;
+ PMD_DRV_LOG(INFO, "Firmware file found at %s with size: %" PRIu64 "",
+ fw_name, (uint64_t)fsize);
+
+ fw_buf = malloc((size_t)fsize);
+ if (!fw_buf) {
+ PMD_DRV_LOG(INFO, "malloc failed for fw buffer");
+ close(fw_f);
+ return -ENOMEM;
+ }
+ memset(fw_buf, 0, fsize);