diff options
Diffstat (limited to 'src/dpdk_lib18/librte_eal/bsdapp/nic_uio/nic_uio.c')
| -rwxr-xr-x | src/dpdk_lib18/librte_eal/bsdapp/nic_uio/nic_uio.c | 329 |
1 files changed, 0 insertions, 329 deletions
diff --git a/src/dpdk_lib18/librte_eal/bsdapp/nic_uio/nic_uio.c b/src/dpdk_lib18/librte_eal/bsdapp/nic_uio/nic_uio.c deleted file mode 100755 index ed11d845..00000000 --- a/src/dpdk_lib18/librte_eal/bsdapp/nic_uio/nic_uio.c +++ /dev/null @@ -1,329 +0,0 @@ -/* - - * BSD LICENSE - * - * Copyright(c) 2010-2014 Intel Corporation. All rights reserved. - * All rights reserved. - * - * 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 Intel Corporation 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 <sys/cdefs.h> -__FBSDID("$FreeBSD$"); - -#include <sys/param.h> /* defines used in kernel.h */ -#include <sys/module.h> -#include <sys/kernel.h> /* types used in module initialization */ -#include <sys/conf.h> /* cdevsw struct */ -#include <sys/bus.h> /* structs, prototypes for pci bus stuff and DEVMETHOD */ -#include <sys/rman.h> -#include <sys/systm.h> -#include <sys/rwlock.h> -#include <sys/proc.h> - -#include <machine/bus.h> -#include <dev/pci/pcivar.h> /* For pci_get macros! */ -#include <dev/pci/pcireg.h> /* The softc holds our per-instance data. */ -#include <vm/vm.h> -#include <vm/uma.h> -#include <vm/vm_object.h> -#include <vm/vm_page.h> -#include <vm/vm_pager.h> - - -#define MAX_BARS (PCIR_MAX_BAR_0 + 1) - - -struct nic_uio_softc { - device_t dev_t; - struct cdev *my_cdev; - int bar_id[MAX_BARS]; - struct resource *bar_res[MAX_BARS]; - u_long bar_start[MAX_BARS]; - u_long bar_size[MAX_BARS]; -}; - -/* Function prototypes */ -static d_open_t nic_uio_open; -static d_close_t nic_uio_close; -static d_mmap_t nic_uio_mmap; -static d_mmap_single_t nic_uio_mmap_single; -static int nic_uio_probe(device_t dev); -static int nic_uio_attach(device_t dev); -static int nic_uio_detach(device_t dev); -static int nic_uio_shutdown(void); -static int nic_uio_modevent(module_t mod, int type, void *arg); - -static struct cdevsw uio_cdevsw = { - .d_name = "nic_uio", - .d_version = D_VERSION, - .d_open = nic_uio_open, - .d_close = nic_uio_close, - .d_mmap = nic_uio_mmap, - .d_mmap_single = nic_uio_mmap_single, -}; - -static device_method_t nic_uio_methods[] = { - DEVMETHOD(device_probe, nic_uio_probe), - DEVMETHOD(device_attach, nic_uio_attach), - DEVMETHOD(device_detach, nic_uio_detach), - DEVMETHOD_END -}; - -struct device { - int vend; - int dev; -}; - -struct pci_bdf { - uint32_t bus; - uint32_t devid; - uint32_t function; -}; - - -#define RTE_PCI_DEV_ID_DECL_EM(vend, dev) {vend, dev}, -#define RTE_PCI_DEV_ID_DECL_IGB(vend, dev) {vend, dev}, -#define RTE_PCI_DEV_ID_DECL_IGBVF(vend, dev) {vend, dev}, -#define RTE_PCI_DEV_ID_DECL_IXGBE(vend, dev) {vend, dev}, -#define RTE_PCI_DEV_ID_DECL_IXGBEVF(vend, dev) {vend, dev}, -#define RTE_PCI_DEV_ID_DECL_I40E(vend, dev) {vend, dev}, -#define RTE_PCI_DEV_ID_DECL_I40EVF(vend, dev) {vend, dev}, -#define RTE_PCI_DEV_ID_DECL_VIRTIO(vend, dev) {vend, dev}, -#define RTE_PCI_DEV_ID_DECL_VMXNET3(vend, dev) {vend, dev}, - -const struct device devices[] = { -#include <rte_pci_dev_ids.h> -}; -#define NUM_DEVICES (sizeof(devices)/sizeof(devices[0])) - - -static devclass_t nic_uio_devclass; - -DEFINE_CLASS_0(nic_uio, nic_uio_driver, nic_uio_methods, sizeof(struct nic_uio_softc)); -DRIVER_MODULE(nic_uio, pci, nic_uio_driver, nic_uio_devclass, nic_uio_modevent, 0); - -static int -nic_uio_mmap(struct cdev *cdev, vm_ooffset_t offset, vm_paddr_t *paddr, - int prot, vm_memattr_t *memattr) -{ - *paddr = offset; - return (0); -} - -static int -nic_uio_mmap_single(struct cdev *cdev, vm_ooffset_t *offset, vm_size_t size, - struct vm_object **obj, int nprot) -{ - /* - * The BAR index is encoded in the offset. Divide the offset by - * PAGE_SIZE to get the index of the bar requested by the user - * app. - */ - unsigned bar = *offset/PAGE_SIZE; - struct nic_uio_softc *sc = cdev->si_drv1; - - if (bar >= MAX_BARS) - return EINVAL; - - if (sc->bar_res[bar] == NULL) { - sc->bar_id[bar] = PCIR_BAR(bar); - - if (PCI_BAR_IO(pci_read_config(sc->dev_t, sc->bar_id[bar], 4))) - sc->bar_res[bar] = bus_alloc_resource_any(sc->dev_t, SYS_RES_IOPORT, - &sc->bar_id[bar], RF_ACTIVE); - else - sc->bar_res[bar] = bus_alloc_resource_any(sc->dev_t, SYS_RES_MEMORY, - &sc->bar_id[bar], RF_ACTIVE); - } - if (sc->bar_res[bar] == NULL) - return ENXIO; - - sc->bar_start[bar] = rman_get_start(sc->bar_res[bar]); - sc->bar_size[bar] = rman_get_size(sc->bar_res[bar]); - - device_printf(sc->dev_t, "Bar %u @ %lx, size %lx\n", bar, - sc->bar_start[bar], sc->bar_size[bar]); - - *offset = sc->bar_start[bar]; - *obj = vm_pager_allocate(OBJT_DEVICE, cdev, size, nprot, *offset, - curthread->td_ucred); - return 0; -} - - -int -nic_uio_open(struct cdev *dev, int oflags, int devtype, d_thread_t *td) -{ - return 0; -} - -int -nic_uio_close(struct cdev *dev, int fflag, int devtype, d_thread_t *td) -{ - return 0; -} - -static int -nic_uio_probe (device_t dev) -{ - int i; - - for (i = 0; i < NUM_DEVICES; i++) - if (pci_get_vendor(dev) == devices[i].vend && - pci_get_device(dev) == devices[i].dev) { - - device_set_desc(dev, "Intel(R) DPDK PCI Device"); - return (BUS_PROBE_SPECIFIC); - } - - return (ENXIO); -} - -static int -nic_uio_attach(device_t dev) -{ - int i; - struct nic_uio_softc *sc; - - sc = device_get_softc(dev); - sc->dev_t = dev; - sc->my_cdev = make_dev(&uio_cdevsw, device_get_unit(dev), - UID_ROOT, GID_WHEEL, 0600, "uio@pci:%u:%u:%u", - pci_get_bus(dev), pci_get_slot(dev), pci_get_function(dev)); - if (sc->my_cdev == NULL) - return ENXIO; - sc->my_cdev->si_drv1 = sc; - - for (i = 0; i < MAX_BARS; i++) - sc->bar_res[i] = NULL; - - pci_enable_busmaster(dev); - - return 0; -} - -static int -nic_uio_detach(device_t dev) -{ - int i; - struct nic_uio_softc *sc; - sc = device_get_softc(dev); - - for (i = 0; i < MAX_BARS; i++) - if (sc->bar_res[i] != NULL) { - - if (PCI_BAR_IO(pci_read_config(dev, sc->bar_id[i], 4))) - bus_release_resource(dev, SYS_RES_IOPORT, sc->bar_id[i], - sc->bar_res[i]); - else - bus_release_resource(dev, SYS_RES_MEMORY, sc->bar_id[i], - sc->bar_res[i]); - } - - if (sc->my_cdev != NULL) - destroy_dev(sc->my_cdev); - return 0; -} - -static void -nic_uio_load(void) -{ - uint32_t bus, device, function; - int i; - device_t dev; - char bdf_str[256]; - char *token, *remaining; - - memset(bdf_str, 0, sizeof(bdf_str)); - TUNABLE_STR_FETCH("hw.nic_uio.bdfs", bdf_str, sizeof(bdf_str)); - remaining = bdf_str; - /* - * Users should specify PCI BDFs in the format "b:d:f,b:d:f,b:d:f". - * But the code below does not try differentiate between : and , - * and just blindly uses 3 tokens at a time to construct a - * bus/device/function tuple. - * - * There is no checking on strtol() return values, but this should - * be OK. Worst case is it cannot convert and returns 0. This - * could give us a different BDF than intended, but as long as the - * PCI device/vendor ID does not match it will not matter. - */ - while (1) { - if (remaining == NULL || remaining[0] == '\0') - break; - token = strsep(&remaining, ",:"); - if (token == NULL) - break; - bus = strtol(token, NULL, 10); - token = strsep(&remaining, ",:"); - if (token == NULL) - break; - device = strtol(token, NULL, 10); - token = strsep(&remaining, ",:"); - if (token == NULL) - break; - function = strtol(token, NULL, 10); - - dev = pci_find_bsf(bus, device, function); - if (dev != NULL) - for (i = 0; i < NUM_DEVICES; i++) - if (pci_get_vendor(dev) == devices[i].vend && - pci_get_device(dev) == devices[i].dev) - device_detach(dev); - } -} - -static void -nic_uio_unload(void) -{ -} - -static int -nic_uio_shutdown(void) -{ - return (0); -} - -static int -nic_uio_modevent(module_t mod, int type, void *arg) -{ - - switch (type) { - case MOD_LOAD: - nic_uio_load(); - break; - case MOD_UNLOAD: - nic_uio_unload(); - break; - case MOD_SHUTDOWN: - nic_uio_shutdown(); - break; - default: - break; - } - - return (0); -} |