X-Git-Url: http://git.droids-corp.org/?a=blobdiff_plain;f=drivers%2Fraw%2Focteontx2_ep%2Fotx2_ep_rawdev.c;fp=drivers%2Fraw%2Focteontx2_ep%2Fotx2_ep_rawdev.c;h=04b4fac6122ec573fdf90dd78fd0d9eb423224f0;hb=56d46d13f73606aea3a18680d0219b6a5bfe3092;hp=0000000000000000000000000000000000000000;hpb=cd7c59dc044bab88c632f9916428331203a824b6;p=dpdk.git

diff --git a/drivers/raw/octeontx2_ep/otx2_ep_rawdev.c b/drivers/raw/octeontx2_ep/otx2_ep_rawdev.c
new file mode 100644
index 0000000000..04b4fac612
--- /dev/null
+++ b/drivers/raw/octeontx2_ep/otx2_ep_rawdev.c
@@ -0,0 +1,132 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(C) 2019 Marvell International Ltd.
+ */
+#include <string.h>
+#include <unistd.h>
+
+#include <rte_bus.h>
+#include <rte_bus_pci.h>
+#include <rte_eal.h>
+#include <rte_lcore.h>
+#include <rte_mempool.h>
+#include <rte_pci.h>
+
+#include <rte_common.h>
+#include <rte_rawdev.h>
+#include <rte_rawdev_pmd.h>
+
+#include "otx2_common.h"
+#include "otx2_ep_rawdev.h"
+
+static const struct rte_pci_id pci_sdp_vf_map[] = {
+	{
+		RTE_PCI_DEVICE(PCI_VENDOR_ID_CAVIUM,
+			       PCI_DEVID_OCTEONTX2_EP_VF)
+	},
+	{
+		.vendor_id = 0,
+	},
+};
+
+static int
+otx2_sdp_rawdev_probe(struct rte_pci_driver *pci_drv __rte_unused,
+		      struct rte_pci_device *pci_dev)
+{
+	char name[RTE_RAWDEV_NAME_MAX_LEN];
+	struct sdp_device *sdpvf = NULL;
+	struct rte_rawdev *sdp_rawdev;
+	uint16_t vf_id;
+
+	/* Single process support */
+	if (rte_eal_process_type() != RTE_PROC_PRIMARY)
+		return 0;
+
+	if (pci_dev->mem_resource[0].addr)
+		otx2_info("SDP_EP BAR0 is mapped:");
+	else {
+		otx2_err("SDP_EP: Failed to map device BARs");
+		otx2_err("BAR0 %p\n BAR2 %p",
+			pci_dev->mem_resource[0].addr,
+			pci_dev->mem_resource[2].addr);
+		return -ENODEV;
+	}
+
+	memset(name, 0, sizeof(name));
+	snprintf(name, RTE_RAWDEV_NAME_MAX_LEN, "SDPEP:%x:%02x.%x",
+		 pci_dev->addr.bus, pci_dev->addr.devid,
+		 pci_dev->addr.function);
+
+	/* Allocate rawdev pmd */
+	sdp_rawdev = rte_rawdev_pmd_allocate(name,
+					     sizeof(struct sdp_device),
+					     rte_socket_id());
+
+	if (sdp_rawdev == NULL) {
+		otx2_err("SDP_EP VF rawdev allocation failed");
+		return -ENOMEM;
+	}
+
+	sdp_rawdev->device = &pci_dev->device;
+	sdp_rawdev->driver_name = pci_dev->driver->driver.name;
+
+	sdpvf = (struct sdp_device *)sdp_rawdev->dev_private;
+	sdpvf->hw_addr = pci_dev->mem_resource[0].addr;
+	sdpvf->pci_dev = pci_dev;
+
+	/* Discover the VF number being probed */
+	vf_id = ((pci_dev->addr.devid & 0x1F) << 3) |
+		 (pci_dev->addr.function & 0x7);
+
+	vf_id -= 1;
+	sdpvf->vf_num = vf_id;
+
+	otx2_info("SDP_EP VF[%d] probe done", vf_id);
+
+	return 0;
+}
+
+static int
+otx2_sdp_rawdev_remove(struct rte_pci_device *pci_dev)
+{
+	char name[RTE_RAWDEV_NAME_MAX_LEN];
+	struct rte_rawdev *rawdev;
+	struct sdp_device *sdpvf;
+
+	/* Single process support */
+	if (rte_eal_process_type() != RTE_PROC_PRIMARY)
+		return 0;
+
+	if (pci_dev == NULL) {
+		otx2_err("SDP_EP:invalid pci_dev!");
+		return -EINVAL;
+	}
+
+
+	memset(name, 0, sizeof(name));
+	snprintf(name, RTE_RAWDEV_NAME_MAX_LEN, "SDPEP:%x:%02x.%x",
+		 pci_dev->addr.bus, pci_dev->addr.devid,
+		 pci_dev->addr.function);
+
+	rawdev = rte_rawdev_pmd_get_named_dev(name);
+	if (rawdev == NULL) {
+		otx2_err("SDP_EP: invalid device name (%s)", name);
+		return -EINVAL;
+	}
+
+	sdpvf = (struct sdp_device *)rawdev->dev_private;
+	otx2_info("Removing SDP_EP VF[%d] ", sdpvf->vf_num);
+
+	/* rte_rawdev_close is called by pmd_release */
+	return rte_rawdev_pmd_release(rawdev);
+}
+
+static struct rte_pci_driver rte_sdp_rawdev_pmd = {
+	.id_table  = pci_sdp_vf_map,
+	.drv_flags = (RTE_PCI_DRV_NEED_MAPPING | RTE_PCI_DRV_NEED_IOVA_AS_VA),
+	.probe     = otx2_sdp_rawdev_probe,
+	.remove    = otx2_sdp_rawdev_remove,
+};
+
+RTE_PMD_REGISTER_PCI(sdp_rawdev_pci_driver, rte_sdp_rawdev_pmd);
+RTE_PMD_REGISTER_PCI_TABLE(sdp_rawdev_pci_driver, pci_sdp_vf_map);
+RTE_PMD_REGISTER_KMOD_DEP(sdp_rawdev_pci_driver, "vfio-pci");