@@ -17,6 +17,8 @@ Features
The BPHY CGX/RPM implements following features in the rawdev API:
- Access to BPHY CGX/RPM via set of predefined messages.
+- Access to BPHY memory
+- Custom interrupt handlers
Device Setup
------------
@@ -33,6 +35,16 @@ To perform data transfer use standard ``rte_rawdev_enqueue_buffers()`` and
``rte_rawdev_dequeue_buffers()`` APIs. Not all messages produce sensible
responses hence dequeueing is not always necessary.
+Other features are realized by custom API calls:
+
+- BPHY memory ranges are obtained with single ``rte_pmd_bphy_intr_mem_get()``,
+- interrupt initialization, registration, unregistration and termination are
+ done with ``rte_pmd_bphy_intr_init()``, ``rte_pmd_bphy_intr_register()``,
+ ``rte_pmd_bphy_intr_unregister()`` and ``rte_pmd_bphy_intr_fini()``,
+ respectively. In order to register an interrupt prior initialization is
+ required. The same way, the subsystem should be terminated when no longer
+ used.
+
Self test
---------
@@ -40,7 +52,7 @@ On EAL initialization, BPHY CGX/RPM devices will be probed and populated into
the raw devices. The rawdev ID of the device can be obtained using invocation
of ``rte_rawdev_get_dev_id("NAME:x")`` from the test application, where:
-- NAME is the desired subsystem: use "BPHY_CGX" for
+- NAME is the desired subsystem: use "BPHY" for regular, and "BPHY_CGX" for
RFOE module,
- x is the device's bus id specified in "bus:device.func" (BDF) format.
new file mode 100644
@@ -0,0 +1,113 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(C) 2021 Marvell International Ltd.
+ */
+#include <rte_bus_pci.h>
+#include <rte_common.h>
+#include <rte_dev.h>
+#include <rte_eal.h>
+#include <rte_lcore.h>
+#include <rte_pci.h>
+#include <rte_rawdev.h>
+#include <rte_rawdev_pmd.h>
+
+#include <roc_api.h>
+
+#include "cnxk_bphy_irq.h"
+
+static const struct rte_pci_id pci_bphy_map[] = {
+ {RTE_PCI_DEVICE(PCI_VENDOR_ID_CAVIUM, PCI_DEVID_CNXK_BPHY)},
+ {
+ .vendor_id = 0,
+ },
+};
+
+static const struct rte_rawdev_ops bphy_rawdev_ops = {
+};
+
+static void
+bphy_rawdev_get_name(char *name, struct rte_pci_device *pci_dev)
+{
+ snprintf(name, RTE_RAWDEV_NAME_MAX_LEN, "BPHY:%x:%02x.%x",
+ pci_dev->addr.bus, pci_dev->addr.devid,
+ pci_dev->addr.function);
+}
+
+static int
+bphy_rawdev_probe(struct rte_pci_driver *pci_drv,
+ struct rte_pci_device *pci_dev)
+{
+ struct bphy_device *bphy_dev = NULL;
+ char name[RTE_RAWDEV_NAME_MAX_LEN];
+ struct rte_rawdev *bphy_rawdev;
+ int ret;
+
+ RTE_SET_USED(pci_drv);
+
+ if (rte_eal_process_type() != RTE_PROC_PRIMARY)
+ return 0;
+
+ if (!pci_dev->mem_resource[0].addr) {
+ plt_err("BARs have invalid values: BAR0 %p\n BAR2 %p",
+ pci_dev->mem_resource[0].addr,
+ pci_dev->mem_resource[2].addr);
+ return -ENODEV;
+ }
+
+ ret = roc_plt_init();
+ if (ret)
+ return ret;
+
+ bphy_rawdev_get_name(name, pci_dev);
+ bphy_rawdev = rte_rawdev_pmd_allocate(name, sizeof(*bphy_dev),
+ rte_socket_id());
+ if (bphy_rawdev == NULL) {
+ plt_err("Failed to allocate rawdev");
+ return -ENOMEM;
+ }
+
+ bphy_rawdev->dev_ops = &bphy_rawdev_ops;
+ bphy_rawdev->device = &pci_dev->device;
+ bphy_rawdev->driver_name = pci_dev->driver->driver.name;
+
+ bphy_dev = (struct bphy_device *)bphy_rawdev->dev_private;
+ bphy_dev->mem.res0 = pci_dev->mem_resource[0];
+ bphy_dev->mem.res2 = pci_dev->mem_resource[2];
+
+ return 0;
+}
+
+static int
+bphy_rawdev_remove(struct rte_pci_device *pci_dev)
+{
+ char name[RTE_RAWDEV_NAME_MAX_LEN];
+ struct rte_rawdev *rawdev;
+
+ if (rte_eal_process_type() != RTE_PROC_PRIMARY)
+ return 0;
+
+ if (pci_dev == NULL) {
+ plt_err("invalid pci_dev");
+ return -EINVAL;
+ }
+
+ rawdev = rte_rawdev_pmd_get_named_dev(name);
+ if (rawdev == NULL) {
+ plt_err("invalid device name (%s)", name);
+ return -EINVAL;
+ }
+
+ bphy_rawdev_get_name(name, pci_dev);
+
+ return rte_rawdev_pmd_release(rawdev);
+}
+
+static struct rte_pci_driver cnxk_bphy_rawdev_pmd = {
+ .id_table = pci_bphy_map,
+ .drv_flags = RTE_PCI_DRV_NEED_MAPPING | RTE_PCI_DRV_NEED_IOVA_AS_VA,
+ .probe = bphy_rawdev_probe,
+ .remove = bphy_rawdev_remove,
+};
+
+RTE_PMD_REGISTER_PCI(bphy_rawdev_pci_driver, cnxk_bphy_rawdev_pmd);
+RTE_PMD_REGISTER_PCI_TABLE(bphy_rawdev_pci_driver, pci_bphy_map);
+RTE_PMD_REGISTER_KMOD_DEP(bphy_rawdev_pci_driver, "vfio-pci");
new file mode 100644
@@ -0,0 +1,23 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(C) 2021 Marvell.
+ */
+
+#ifndef _CNXK_BPHY_IRQ_
+#define _CNXK_BPHY_IRQ_
+
+#include <rte_bus_pci.h>
+#include <rte_dev.h>
+
+#include <roc_api.h>
+
+struct bphy_mem {
+ struct rte_mem_resource res0;
+ struct rte_mem_resource res2;
+};
+
+struct bphy_device {
+ struct roc_bphy_irq_chip *irq_chip;
+ struct bphy_mem mem;
+};
+
+#endif /* _CNXK_BPHY_IRQ_ */
@@ -4,6 +4,7 @@
deps += ['bus_pci', 'common_cnxk', 'rawdev']
sources = files(
+ 'cnxk_bphy.c',
'cnxk_bphy_cgx.c',
'cnxk_bphy_cgx_test.c'
)
@@ -45,6 +45,8 @@
'SVendor': None, 'SDevice': None}
octeontx2_ree = {'Class': '08', 'Vendor': '177d', 'Device': 'a0f4',
'SVendor': None, 'SDevice': None}
+cnxk_bphy = {'Class': '08', 'Vendor': '177d', 'Device': 'a089'
+ 'SVendor': None, 'SDevice': None}
cnxk_bphy_cgx = {'Class': '08', 'Vendor': '177d', 'Device': 'a059', 'a060'
'SVendor': None, 'SDevice': None}
@@ -71,7 +73,7 @@
mempool_devices = [cavium_fpa, octeontx2_npa]
compress_devices = [cavium_zip]
regex_devices = [octeontx2_ree]
-misc_devices = [cnxk_bphy_cgx, intel_ioat_bdw, intel_ioat_skx, intel_ioat_icx, intel_idxd_spr,
+misc_devices = [cnxk_bphy, cnxk_bphy_cgx, intel_ioat_bdw, intel_ioat_skx, intel_ioat_icx, intel_idxd_spr,
intel_ntb_skx, intel_ntb_icx,
octeontx2_dma]