raw/ifpga: scan PCIe BDF device tree
Add PCIe BDF devices tree scan for ipn3ke. Signed-off-by: Rosen Xu <rosen.xu@intel.com> Signed-off-by: Andy Pei <andy.pei@intel.com>
This commit is contained in:
Rosen Xu
Ferruh Yigit
parent
82ce05d8ca
commit
9c006c45d0
@ -8,6 +8,8 @@
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#include <unistd.h>
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#include <sys/types.h>
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#include <fcntl.h>
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#include <sys/ioctl.h>
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#include <sys/epoll.h>
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#include <rte_log.h>
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#include <rte_bus.h>
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#include <rte_malloc.h>
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@ -17,7 +19,7 @@
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#include <rte_bus_pci.h>
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#include <rte_kvargs.h>
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#include <rte_alarm.h>
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#include <rte_interrupts.h>
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#include <rte_errno.h>
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#include <rte_per_lcore.h>
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#include <rte_memory.h>
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@ -25,6 +27,7 @@
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#include <rte_eal.h>
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#include <rte_common.h>
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#include <rte_bus_vdev.h>
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#include <rte_string_fns.h>
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#include "base/opae_hw_api.h"
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#include "base/opae_ifpga_hw_api.h"
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@ -37,6 +40,12 @@
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#include "ifpga_rawdev.h"
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#include "ipn3ke_rawdev_api.h"
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#define RTE_PCI_EXT_CAP_ID_ERR 0x01 /* Advanced Error Reporting */
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#define RTE_PCI_CFG_SPACE_SIZE 256
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#define RTE_PCI_CFG_SPACE_EXP_SIZE 4096
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#define RTE_PCI_EXT_CAP_ID(header) (int)(header & 0x0000ffff)
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#define RTE_PCI_EXT_CAP_NEXT(header) ((header >> 20) & 0xffc)
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int ifpga_rawdev_logtype;
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#define PCI_VENDOR_ID_INTEL 0x8086
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@ -64,6 +73,494 @@ static const struct rte_pci_id pci_ifpga_map[] = {
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{ .vendor_id = 0, /* sentinel */ },
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};
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static struct ifpga_rawdev ifpga_rawdevices[IFPGA_RAWDEV_NUM];
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static int ifpga_monitor_start;
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static pthread_t ifpga_monitor_start_thread;
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static struct ifpga_rawdev *
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ifpga_rawdev_allocate(struct rte_rawdev *rawdev);
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static int set_surprise_link_check_aer(
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struct ifpga_rawdev *ifpga_rdev, int force_disable);
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static int ifpga_pci_find_next_ext_capability(unsigned int fd,
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int start, int cap);
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static int ifpga_pci_find_ext_capability(unsigned int fd, int cap);
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struct ifpga_rawdev *
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ifpga_rawdev_get(const struct rte_rawdev *rawdev)
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{
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struct ifpga_rawdev *dev;
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unsigned int i;
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if (rawdev == NULL)
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return NULL;
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for (i = 0; i < IFPGA_RAWDEV_NUM; i++) {
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dev = &ifpga_rawdevices[i];
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if (dev->rawdev == rawdev)
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return dev;
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}
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return NULL;
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}
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static inline uint8_t
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ifpga_rawdev_find_free_device_index(void)
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{
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uint16_t dev_id;
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for (dev_id = 0; dev_id < IFPGA_RAWDEV_NUM; dev_id++) {
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if (ifpga_rawdevices[dev_id].rawdev == NULL)
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return dev_id;
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}
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return IFPGA_RAWDEV_NUM;
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}
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static struct ifpga_rawdev *
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ifpga_rawdev_allocate(struct rte_rawdev *rawdev)
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{
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struct ifpga_rawdev *dev;
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uint16_t dev_id;
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dev = ifpga_rawdev_get(rawdev);
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if (dev != NULL) {
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IFPGA_RAWDEV_PMD_ERR("Event device already allocated!");
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return NULL;
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}
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dev_id = ifpga_rawdev_find_free_device_index();
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if (dev_id == IFPGA_RAWDEV_NUM) {
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IFPGA_RAWDEV_PMD_ERR("Reached maximum number of raw devices");
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return NULL;
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}
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dev = &ifpga_rawdevices[dev_id];
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dev->rawdev = rawdev;
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dev->dev_id = dev_id;
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return dev;
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}
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static int ifpga_pci_find_next_ext_capability(unsigned int fd,
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int start, int cap)
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{
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uint32_t header;
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int ttl;
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int pos = RTE_PCI_CFG_SPACE_SIZE;
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int ret;
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/* minimum 8 bytes per capability */
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ttl = (RTE_PCI_CFG_SPACE_EXP_SIZE - RTE_PCI_CFG_SPACE_SIZE) / 8;
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if (start)
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pos = start;
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ret = pread(fd, &header, sizeof(header), pos);
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if (ret == -1)
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return -1;
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/*
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* If we have no capabilities, this is indicated by cap ID,
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* cap version and next pointer all being 0.
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*/
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if (header == 0)
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return 0;
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while (ttl-- > 0) {
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if (RTE_PCI_EXT_CAP_ID(header) == cap && pos != start)
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return pos;
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pos = RTE_PCI_EXT_CAP_NEXT(header);
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if (pos < RTE_PCI_CFG_SPACE_SIZE)
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break;
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ret = pread(fd, &header, sizeof(header), pos);
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if (ret == -1)
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return -1;
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}
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return 0;
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}
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static int ifpga_pci_find_ext_capability(unsigned int fd, int cap)
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{
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return ifpga_pci_find_next_ext_capability(fd, 0, cap);
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}
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static int ifpga_get_dev_vendor_id(const char *bdf,
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uint32_t *dev_id, uint32_t *vendor_id)
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{
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int fd;
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char path[1024];
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int ret;
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uint32_t header;
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strlcpy(path, "/sys/bus/pci/devices/", sizeof(path));
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strlcat(path, bdf, sizeof(path));
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strlcat(path, "/config", sizeof(path));
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fd = open(path, O_RDWR);
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if (fd < 0)
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return -1;
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ret = pread(fd, &header, sizeof(header), 0);
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if (ret == -1) {
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close(fd);
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return -1;
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}
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(*vendor_id) = header & 0xffff;
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(*dev_id) = (header >> 16) & 0xffff;
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close(fd);
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return 0;
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}
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static int ifpga_rawdev_fill_info(struct ifpga_rawdev *ifpga_dev,
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const char *bdf)
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{
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char path[1024] = "/sys/bus/pci/devices/0000:";
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char link[1024], link1[1024];
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char dir[1024] = "/sys/devices/";
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char *c;
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int ret;
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char sub_brg_bdf[4][16];
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int point;
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DIR *dp = NULL;
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struct dirent *entry;
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int i, j;
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unsigned int dom, bus, dev;
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int func;
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uint32_t dev_id, vendor_id;
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strlcat(path, bdf, sizeof(path));
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memset(link, 0, sizeof(link));
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memset(link1, 0, sizeof(link1));
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ret = readlink(path, link, (sizeof(link)-1));
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if (ret == -1)
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return -1;
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strlcpy(link1, link, sizeof(link1));
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memset(ifpga_dev->parent_bdf, 0, 16);
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point = strlen(link);
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if (point < 39)
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return -1;
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point -= 39;
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link[point] = 0;
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if (point < 12)
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return -1;
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point -= 12;
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rte_memcpy(ifpga_dev->parent_bdf, &link[point], 12);
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point = strlen(link1);
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if (point < 26)
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return -1;
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point -= 26;
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link1[point] = 0;
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if (point < 12)
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return -1;
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point -= 12;
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c = strchr(link1, 'p');
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if (!c)
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return -1;
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strlcat(dir, c, sizeof(dir));
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/* scan folder */
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dp = opendir(dir);
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if (dp == NULL)
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return -1;
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i = 0;
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while ((entry = readdir(dp)) != NULL) {
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if (i >= 4)
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break;
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if (entry->d_name[0] == '.')
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continue;
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if (strlen(entry->d_name) > 12)
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continue;
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if (sscanf(entry->d_name, "%x:%x:%x.%d",
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&dom, &bus, &dev, &func) < 4)
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continue;
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else {
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strlcpy(sub_brg_bdf[i],
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entry->d_name,
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sizeof(sub_brg_bdf[i]));
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i++;
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}
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}
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closedir(dp);
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/* get fpga and fvl */
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j = 0;
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for (i = 0; i < 4; i++) {
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strlcpy(link, dir, sizeof(link));
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strlcat(link, "/", sizeof(link));
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strlcat(link, sub_brg_bdf[i], sizeof(link));
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dp = opendir(link);
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if (dp == NULL)
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return -1;
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while ((entry = readdir(dp)) != NULL) {
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if (j >= 8)
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break;
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if (entry->d_name[0] == '.')
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continue;
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if (strlen(entry->d_name) > 12)
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continue;
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if (sscanf(entry->d_name, "%x:%x:%x.%d",
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&dom, &bus, &dev, &func) < 4)
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continue;
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else {
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if (ifpga_get_dev_vendor_id(entry->d_name,
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&dev_id, &vendor_id))
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continue;
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if (vendor_id == 0x8086 &&
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(dev_id == 0x0CF8 ||
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dev_id == 0x0D58 ||
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dev_id == 0x1580)) {
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strlcpy(ifpga_dev->fvl_bdf[j],
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entry->d_name,
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sizeof(ifpga_dev->fvl_bdf[j]));
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j++;
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}
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}
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}
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closedir(dp);
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}
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return 0;
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}
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#define HIGH_FATAL(_sens, value)\
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(((_sens)->flags & OPAE_SENSOR_HIGH_FATAL_VALID) &&\
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(value > (_sens)->high_fatal))
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#define HIGH_WARN(_sens, value)\
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(((_sens)->flags & OPAE_SENSOR_HIGH_WARN_VALID) &&\
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(value > (_sens)->high_warn))
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#define LOW_FATAL(_sens, value)\
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(((_sens)->flags & OPAE_SENSOR_LOW_FATAL_VALID) &&\
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(value > (_sens)->low_fatal))
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#define LOW_WARN(_sens, value)\
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(((_sens)->flags & OPAE_SENSOR_LOW_WARN_VALID) &&\
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(value > (_sens)->low_warn))
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#define AUX_VOLTAGE_WARN 11400
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static int
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ifpga_monitor_sensor(struct rte_rawdev *raw_dev,
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bool *gsd_start)
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{
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struct opae_adapter *adapter;
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struct opae_manager *mgr;
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struct opae_sensor_info *sensor;
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unsigned int value;
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int ret;
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adapter = ifpga_rawdev_get_priv(raw_dev);
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if (!adapter)
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return -ENODEV;
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mgr = opae_adapter_get_mgr(adapter);
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if (!mgr)
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return -ENODEV;
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opae_mgr_for_each_sensor(sensor) {
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if (!(sensor->flags & OPAE_SENSOR_VALID))
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goto fail;
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ret = opae_mgr_get_sensor_value(mgr, sensor, &value);
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if (ret)
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goto fail;
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if (value == 0xdeadbeef) {
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IFPGA_RAWDEV_PMD_ERR("sensor %s is invalid value %x\n",
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sensor->name, value);
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continue;
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}
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/* monitor temperature sensors */
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if (!strcmp(sensor->name, "Board Temperature") ||
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!strcmp(sensor->name, "FPGA Die Temperature")) {
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IFPGA_RAWDEV_PMD_INFO("read sensor %s %d %d %d\n",
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sensor->name, value, sensor->high_warn,
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sensor->high_fatal);
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if (HIGH_WARN(sensor, value) ||
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LOW_WARN(sensor, value)) {
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IFPGA_RAWDEV_PMD_INFO("%s reach theshold %d\n",
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sensor->name, value);
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*gsd_start = true;
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break;
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}
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}
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/* monitor 12V AUX sensor */
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if (!strcmp(sensor->name, "12V AUX Voltage")) {
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if (value < AUX_VOLTAGE_WARN) {
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IFPGA_RAWDEV_PMD_INFO("%s reach theshold %d\n",
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sensor->name, value);
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*gsd_start = true;
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break;
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}
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}
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}
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return 0;
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fail:
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return -EFAULT;
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}
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static int set_surprise_link_check_aer(
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struct ifpga_rawdev *ifpga_rdev, int force_disable)
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{
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struct rte_rawdev *rdev;
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int fd = -1;
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char path[1024];
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int pos;
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int ret;
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uint32_t data;
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bool enable = 0;
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uint32_t aer_new0, aer_new1;
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if (!ifpga_rdev) {
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printf("\n device does not exist\n");
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return -EFAULT;
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}
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rdev = ifpga_rdev->rawdev;
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if (ifpga_rdev->aer_enable)
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return -EFAULT;
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if (ifpga_monitor_sensor(rdev, &enable))
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return -EFAULT;
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if (enable || force_disable) {
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IFPGA_RAWDEV_PMD_ERR("Set AER, pls graceful shutdown\n");
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ifpga_rdev->aer_enable = 1;
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/* get bridge fd */
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strlcpy(path, "/sys/bus/pci/devices/", sizeof(path));
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strlcat(path, ifpga_rdev->parent_bdf, sizeof(path));
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strlcat(path, "/config", sizeof(path));
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fd = open(path, O_RDWR);
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if (fd < 0)
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goto end;
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pos = ifpga_pci_find_ext_capability(fd, RTE_PCI_EXT_CAP_ID_ERR);
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if (!pos)
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goto end;
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/* save previout ECAP_AER+0x08 */
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ret = pread(fd, &data, sizeof(data), pos+0x08);
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if (ret == -1)
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goto end;
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ifpga_rdev->aer_old[0] = data;
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/* save previout ECAP_AER+0x14 */
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ret = pread(fd, &data, sizeof(data), pos+0x14);
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if (ret == -1)
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goto end;
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ifpga_rdev->aer_old[1] = data;
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/* set ECAP_AER+0x08 to 0xFFFFFFFF */
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data = 0xffffffff;
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ret = pwrite(fd, &data, 4, pos+0x08);
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if (ret == -1)
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goto end;
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/* set ECAP_AER+0x14 to 0xFFFFFFFF */
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ret = pwrite(fd, &data, 4, pos+0x14);
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if (ret == -1)
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goto end;
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/* read current ECAP_AER+0x08 */
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ret = pread(fd, &data, sizeof(data), pos+0x08);
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if (ret == -1)
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goto end;
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aer_new0 = data;
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/* read current ECAP_AER+0x14 */
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ret = pread(fd, &data, sizeof(data), pos+0x14);
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if (ret == -1)
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goto end;
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aer_new1 = data;
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if (fd != -1)
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close(fd);
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printf(">>>>>>Set AER %x,%x %x,%x\n",
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ifpga_rdev->aer_old[0], ifpga_rdev->aer_old[1],
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aer_new0, aer_new1);
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return 1;
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}
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end:
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if (fd != -1)
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close(fd);
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return -EFAULT;
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}
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static void *
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ifpga_rawdev_gsd_handle(__rte_unused void *param)
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{
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struct ifpga_rawdev *ifpga_rdev;
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int i;
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int gsd_enable, ret;
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#define MS 1000
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while (1) {
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gsd_enable = 0;
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for (i = 0; i < IFPGA_RAWDEV_NUM; i++) {
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ifpga_rdev = &ifpga_rawdevices[i];
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if (ifpga_rdev->rawdev) {
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ret = set_surprise_link_check_aer(ifpga_rdev,
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gsd_enable);
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if (ret == 1 && !gsd_enable) {
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gsd_enable = 1;
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i = -1;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
if (gsd_enable)
|
||||
printf(">>>>>>Pls Shutdown APP\n");
|
||||
|
||||
rte_delay_us(100 * MS);
|
||||
}
|
||||
|
||||
return NULL;
|
||||
}
|
||||
|
||||
static int
|
||||
ifpga_monitor_start_func(void)
|
||||
{
|
||||
int ret;
|
||||
|
||||
if (ifpga_monitor_start == 0) {
|
||||
ret = pthread_create(&ifpga_monitor_start_thread,
|
||||
NULL,
|
||||
ifpga_rawdev_gsd_handle, NULL);
|
||||
if (ret) {
|
||||
IFPGA_RAWDEV_PMD_ERR(
|
||||
"Fail to create ifpga nonitor thread");
|
||||
return -1;
|
||||
}
|
||||
ifpga_monitor_start = 1;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
static int
|
||||
ifpga_monitor_stop_func(void)
|
||||
{
|
||||
int ret;
|
||||
|
||||
if (ifpga_monitor_start == 1) {
|
||||
ret = pthread_cancel(ifpga_monitor_start_thread);
|
||||
if (ret)
|
||||
IFPGA_RAWDEV_PMD_ERR("Can't cancel the thread");
|
||||
|
||||
ret = pthread_join(ifpga_monitor_start_thread, NULL);
|
||||
if (ret)
|
||||
IFPGA_RAWDEV_PMD_ERR("Can't join the thread");
|
||||
|
||||
ifpga_monitor_start = 0;
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int
|
||||
ifpga_fill_afu_dev(struct opae_accelerator *acc,
|
||||
struct rte_afu_device *afu_dev)
|
||||
@ -372,8 +869,9 @@ ifpga_rawdev_pr(struct rte_rawdev *dev,
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
memcpy(&afu_pr_conf->afu_id.uuid.uuid_low, uuid.b, sizeof(u64));
|
||||
memcpy(&afu_pr_conf->afu_id.uuid.uuid_high, uuid.b + 8, sizeof(u64));
|
||||
rte_memcpy(&afu_pr_conf->afu_id.uuid.uuid_low, uuid.b, sizeof(u64));
|
||||
rte_memcpy(&afu_pr_conf->afu_id.uuid.uuid_high,
|
||||
uuid.b + 8, sizeof(u64));
|
||||
|
||||
IFPGA_RAWDEV_PMD_INFO("%s: uuid_l=0x%lx, uuid_h=0x%lx\n", __func__,
|
||||
(unsigned long)afu_pr_conf->afu_id.uuid.uuid_low,
|
||||
@ -838,6 +1336,7 @@ ifpga_rawdev_create(struct rte_pci_device *pci_dev,
|
||||
{
|
||||
int ret = 0;
|
||||
struct rte_rawdev *rawdev = NULL;
|
||||
struct ifpga_rawdev *dev = NULL;
|
||||
struct opae_adapter *adapter = NULL;
|
||||
struct opae_manager *mgr = NULL;
|
||||
struct opae_adapter_data_pci *data = NULL;
|
||||
@ -851,7 +1350,7 @@ ifpga_rawdev_create(struct rte_pci_device *pci_dev,
|
||||
}
|
||||
|
||||
memset(name, 0, sizeof(name));
|
||||
snprintf(name, RTE_RAWDEV_NAME_MAX_LEN, "IFPGA:%x:%02x.%x",
|
||||
snprintf(name, RTE_RAWDEV_NAME_MAX_LEN, "IFPGA:%02x:%02x.%x",
|
||||
pci_dev->addr.bus, pci_dev->addr.devid, pci_dev->addr.function);
|
||||
|
||||
IFPGA_RAWDEV_PMD_INFO("Init %s on NUMA node %d", name, rte_socket_id());
|
||||
@ -865,6 +1364,14 @@ ifpga_rawdev_create(struct rte_pci_device *pci_dev,
|
||||
goto cleanup;
|
||||
}
|
||||
|
||||
dev = ifpga_rawdev_allocate(rawdev);
|
||||
if (dev == NULL) {
|
||||
IFPGA_RAWDEV_PMD_ERR("Unable to allocate ifpga_rawdevice");
|
||||
ret = -EINVAL;
|
||||
goto cleanup;
|
||||
}
|
||||
dev->aer_enable = 0;
|
||||
|
||||
/* alloc OPAE_FPGA_PCI data to register to OPAE hardware level API */
|
||||
data = opae_adapter_data_alloc(OPAE_FPGA_PCI);
|
||||
if (!data) {
|
||||
@ -983,6 +1490,7 @@ ifpga_rawdev_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
|
||||
static int
|
||||
ifpga_rawdev_pci_remove(struct rte_pci_device *pci_dev)
|
||||
{
|
||||
ifpga_monitor_stop_func();
|
||||
return ifpga_rawdev_destroy(pci_dev);
|
||||
}
|
||||
|
||||
@ -1014,13 +1522,32 @@ static const char * const valid_args[] = {
|
||||
NULL
|
||||
};
|
||||
|
||||
static int ifpga_rawdev_get_string_arg(const char *key __rte_unused,
|
||||
const char *value, void *extra_args)
|
||||
{
|
||||
int size;
|
||||
if (!value || !extra_args)
|
||||
return -EINVAL;
|
||||
|
||||
size = strlen(value) + 1;
|
||||
*(char **)extra_args = rte_malloc(NULL, size, RTE_CACHE_LINE_SIZE);
|
||||
if (!*(char **)extra_args)
|
||||
return -ENOMEM;
|
||||
|
||||
strlcpy(*(char **)extra_args, value, size);
|
||||
|
||||
return 0;
|
||||
}
|
||||
static int
|
||||
ifpga_cfg_probe(struct rte_vdev_device *dev)
|
||||
{
|
||||
struct rte_devargs *devargs;
|
||||
struct rte_kvargs *kvlist = NULL;
|
||||
struct rte_rawdev *rawdev = NULL;
|
||||
struct ifpga_rawdev *ifpga_dev;
|
||||
int port;
|
||||
char *name = NULL;
|
||||
const char *bdf;
|
||||
char dev_name[RTE_RAWDEV_NAME_MAX_LEN];
|
||||
int ret = -1;
|
||||
|
||||
@ -1034,7 +1561,8 @@ ifpga_cfg_probe(struct rte_vdev_device *dev)
|
||||
|
||||
if (rte_kvargs_count(kvlist, IFPGA_ARG_NAME) == 1) {
|
||||
if (rte_kvargs_process(kvlist, IFPGA_ARG_NAME,
|
||||
&rte_ifpga_get_string_arg, &name) < 0) {
|
||||
&ifpga_rawdev_get_string_arg,
|
||||
&name) < 0) {
|
||||
IFPGA_RAWDEV_PMD_ERR("error to parse %s",
|
||||
IFPGA_ARG_NAME);
|
||||
goto end;
|
||||
@ -1060,6 +1588,19 @@ ifpga_cfg_probe(struct rte_vdev_device *dev)
|
||||
goto end;
|
||||
}
|
||||
|
||||
memset(dev_name, 0, sizeof(dev_name));
|
||||
snprintf(dev_name, RTE_RAWDEV_NAME_MAX_LEN, "IFPGA:%s", name);
|
||||
rawdev = rte_rawdev_pmd_get_named_dev(dev_name);
|
||||
if (!rawdev)
|
||||
goto end;
|
||||
ifpga_dev = ifpga_rawdev_get(rawdev);
|
||||
if (!ifpga_dev)
|
||||
goto end;
|
||||
bdf = name;
|
||||
ifpga_rawdev_fill_info(ifpga_dev, bdf);
|
||||
|
||||
ifpga_monitor_start_func();
|
||||
|
||||
memset(dev_name, 0, sizeof(dev_name));
|
||||
snprintf(dev_name, RTE_RAWDEV_NAME_MAX_LEN, "%d|%s",
|
||||
port, name);
|
||||
|
||||
@ -46,4 +46,20 @@ ifpga_rawdev_get_priv(const struct rte_rawdev *rawdev)
|
||||
return rawdev->dev_private;
|
||||
}
|
||||
|
||||
#define IFPGA_RAWDEV_MSIX_IRQ_NUM 7
|
||||
#define IFPGA_RAWDEV_NUM 32
|
||||
|
||||
struct ifpga_rawdev {
|
||||
int dev_id;
|
||||
struct rte_rawdev *rawdev;
|
||||
int aer_enable;
|
||||
int intr_fd[IFPGA_RAWDEV_MSIX_IRQ_NUM+1];
|
||||
uint32_t aer_old[2];
|
||||
char fvl_bdf[8][16];
|
||||
char parent_bdf[16];
|
||||
};
|
||||
|
||||
struct ifpga_rawdev *
|
||||
ifpga_rawdev_get(const struct rte_rawdev *rawdev);
|
||||
|
||||
#endif /* _IFPGA_RAWDEV_H_ */
|
||||
|
||||
Loading…
Reference in New Issue
Block a user