From: "McDaniel, Timothy" <timothy.mcdan...@intel.com> Signed-off-by: McDaniel, Timothy <timothy.mcdan...@intel.com> --- drivers/event/dlb/Makefile | 2 + drivers/event/dlb/meson.build | 4 +- drivers/event/dlb/pf/dlb_main.c | 614 ++++++++++++++++++++++++++++++ drivers/event/dlb/pf/dlb_main.h | 54 +++ drivers/event/dlb/pf/dlb_pf.c | 782 +++++++++++++++++++++++++++++++++++++++ 5 files changed, 1455 insertions(+), 1 deletion(-) create mode 100644 drivers/event/dlb/pf/dlb_main.c create mode 100644 drivers/event/dlb/pf/dlb_main.h create mode 100644 drivers/event/dlb/pf/dlb_pf.c
diff --git a/drivers/event/dlb/Makefile b/drivers/event/dlb/Makefile index f191762..0d27fc3 100644 --- a/drivers/event/dlb/Makefile +++ b/drivers/event/dlb/Makefile @@ -20,6 +20,8 @@ LIBABIVER := 1 EXPORT_MAP := rte_pmd_dlb_event_version.map # library source files +SRCS-$(CONFIG_RTE_LIBRTE_PMD_DLB_EVENTDEV) += pf/dlb_pf.c +SRCS-$(CONFIG_RTE_LIBRTE_PMD_DLB_EVENTDEV) += pf/dlb_main.c SRCS-$(CONFIG_RTE_LIBRTE_PMD_DLB_EVENTDEV) += pf/base/dlb_resource.c # export include files diff --git a/drivers/event/dlb/meson.build b/drivers/event/dlb/meson.build index 4fae0eb..1e30b4c 100644 --- a/drivers/event/dlb/meson.build +++ b/drivers/event/dlb/meson.build @@ -1,7 +1,9 @@ # SPDX-License-Identifier: BSD-3-Clause # Copyright(c) 2019-2020 Intel Corporation -sources = files('pf/base/dlb_resource.c' +sources = files('pf/dlb_pf.c', + 'pf/dlb_main.c', + 'pf/base/dlb_resource.c' ) deps += ['mbuf', 'mempool', 'ring', 'pci', 'bus_pci'] diff --git a/drivers/event/dlb/pf/dlb_main.c b/drivers/event/dlb/pf/dlb_main.c new file mode 100644 index 0000000..9c49f94 --- /dev/null +++ b/drivers/event/dlb/pf/dlb_main.c @@ -0,0 +1,614 @@ +/* SPDX-License-Identifier: BSD-3-Clause + * Copyright(c) 2016-2020 Intel Corporation + */ + +#include <stdint.h> +#include <stdbool.h> +#include <stdio.h> +#include <errno.h> +#include <assert.h> +#include <unistd.h> +#include <string.h> + +#include <rte_malloc.h> +#include <rte_errno.h> + +#include "base/dlb_resource.h" +#include "base/dlb_osdep.h" +#include "base/dlb_regs.h" +#include "../dlb_priv.h" +#include "../dlb_inline_fns.h" +#include "../dlb_user.h" +#include "dlb_main.h" + +#define PF_ID_ZERO 0 /* PF ONLY! */ +#define NO_OWNER_VF 0 /* PF ONLY! */ +#define NOT_VF_REQ false /* PF ONLY! */ + +unsigned int dlb_unregister_timeout_s = DLB_DEFAULT_UNREGISTER_TIMEOUT_S; + +#define DLB_PCI_CFG_SPACE_SIZE 256 +#define DLB_PCI_CAP_POINTER 0x34 +#define DLB_PCI_CAP_NEXT(hdr) (((hdr) >> 8) & 0xFC) +#define DLB_PCI_CAP_ID(hdr) ((hdr) & 0xFF) +#define DLB_PCI_EXT_CAP_NEXT(hdr) (((hdr) >> 20) & 0xFFC) +#define DLB_PCI_EXT_CAP_ID(hdr) ((hdr) & 0xFFFF) +#define DLB_PCI_EXT_CAP_ID_ERR 1 +#define DLB_PCI_ERR_UNCOR_MASK 8 +#define DLB_PCI_ERR_UNC_UNSUP 0x00100000 + +#define DLB_PCI_EXP_DEVCTL 8 +#define DLB_PCI_LNKCTL 16 +#define DLB_PCI_SLTCTL 24 +#define DLB_PCI_RTCTL 28 +#define DLB_PCI_EXP_DEVCTL2 40 +#define DLB_PCI_LNKCTL2 48 +#define DLB_PCI_SLTCTL2 56 +#define DLB_PCI_CMD 4 +#define DLB_PCI_X_CMD 2 +#define DLB_PCI_EXP_DEVSTA 10 +#define DLB_PCI_EXP_DEVSTA_TRPND 0x20 +#define DLB_PCI_EXP_DEVCTL_BCR_FLR 0x8000 +#define DLB_PCI_PASID_CTRL 6 +#define DLB_PCI_PASID_CAP 4 + +#define DLB_PCI_CAP_ID_EXP 0x10 +#define DLB_PCI_CAP_ID_MSIX 0x11 +#define DLB_PCI_EXT_CAP_ID_PAS 0x1B +#define DLB_PCI_EXT_CAP_ID_PRI 0x13 +#define DLB_PCI_EXT_CAP_ID_ACS 0xD + +#define DLB_PCI_PASID_CAP_EXEC 0x2 +#define DLB_PCI_PASID_CAP_PRIV 0x4 +#define DLB_PCI_PASID_CTRL_ENABLE 0x1 +#define DLB_PCI_PRI_CTRL_ENABLE 0x1 +#define DLB_PCI_PRI_ALLOC_REQ 0xC +#define DLB_PCI_PRI_CTRL 0x4 +#define DLB_PCI_MSIX_FLAGS 0x2 +#define DLB_PCI_MSIX_FLAGS_ENABLE 0x8000 +#define DLB_PCI_MSIX_FLAGS_MASKALL 0x4000 +#define DLB_PCI_ERR_ROOT_STATUS 0x30 +#define DLB_PCI_ERR_COR_STATUS 0x10 +#define DLB_PCI_ERR_UNCOR_STATUS 0x4 +#define DLB_PCI_COMMAND_INTX_DISABLE 0x400 +#define DLB_PCI_ACS_CAP 0x4 +#define DLB_PCI_ACS_CTRL 0x6 +#define DLB_PCI_ACS_SV 0x1 +#define DLB_PCI_ACS_RR 0x4 +#define DLB_PCI_ACS_CR 0x8 +#define DLB_PCI_ACS_UF 0x10 +#define DLB_PCI_ACS_EC 0x20 + +static int dlb_pci_find_ext_capability(struct rte_pci_device *pdev, uint32_t id) +{ + uint32_t hdr; + size_t sz; + int pos; + + pos = DLB_PCI_CFG_SPACE_SIZE; + sz = sizeof(hdr); + + while (pos > 0xFF) { + if (rte_pci_read_config(pdev, &hdr, sz, pos) != (int)sz) + return -1; + + if (DLB_PCI_EXT_CAP_ID(hdr) == id) + return pos; + + pos = DLB_PCI_EXT_CAP_NEXT(hdr); + } + + return -1; +} + +static int dlb_pci_find_capability(struct rte_pci_device *pdev, uint32_t id) +{ + uint8_t pos; + int ret; + uint16_t hdr; + + ret = rte_pci_read_config(pdev, &pos, 1, DLB_PCI_CAP_POINTER); + pos &= 0xFC; + + if (ret != 1) + return -1; + + while (pos > 0x3F) { + ret = rte_pci_read_config(pdev, &hdr, 2, pos); + if (ret != 2) + return -1; + + if (DLB_PCI_CAP_ID(hdr) == id) + return pos; + + if (DLB_PCI_CAP_ID(hdr) == 0xFF) + return -1; + + pos = DLB_PCI_CAP_NEXT(hdr); + } + + return -1; +} + +static int dlb_mask_ur_err(struct rte_pci_device *pdev) +{ + uint32_t mask; + size_t sz = sizeof(mask); + int pos = dlb_pci_find_ext_capability(pdev, DLB_PCI_EXT_CAP_ID_ERR); + + if (pos < 0) { + printf("[%s()] failed to find the aer capability\n", + __func__); + return pos; + } + + pos += DLB_PCI_ERR_UNCOR_MASK; + + if (rte_pci_read_config(pdev, &mask, sz, pos) != (int)sz) { + printf("[%s()] Failed to read uncorrectable error mask reg\n", + __func__); + return -1; + } + + /* Mask Unsupported Request errors */ + mask |= DLB_PCI_ERR_UNC_UNSUP; + + if (rte_pci_write_config(pdev, &mask, sz, pos) != (int)sz) { + printf("[%s()] Failed to write uncorrectable error mask reg at offset %d\n", + __func__, pos); + return -1; + } + + return 0; +} + +struct dlb_dev * +dlb_probe(struct rte_pci_device *pdev) +{ + struct dlb_dev *dlb_dev; + int ret = 0; + + DLB_INFO(dlb_dev, "probe\n"); + + dlb_dev = rte_malloc("DLB_PF", sizeof(struct dlb_dev), + RTE_CACHE_LINE_SIZE); + + if (!dlb_dev) { + ret = -ENOMEM; + goto dlb_dev_malloc_fail; + } + + /* PCI Bus driver has already mapped bar space into process. + * Save off our IO register and FUNC addresses. + */ + + /* BAR 0 */ + if (pdev->mem_resource[0].addr == NULL) { + DLB_ERR(dlb_dev, "probe: BAR 0 addr (csr_kva) is NULL\n"); + ret = -EINVAL; + goto pci_mmap_bad_addr; + } + dlb_dev->hw.func_kva = (void *)(uintptr_t)pdev->mem_resource[0].addr; + dlb_dev->hw.func_phys_addr = pdev->mem_resource[0].phys_addr; + + DLB_INFO(dlb_dev, "DLB FUNC VA=%p, PA=%p, len=%"PRIu64"\n", + (void *)dlb_dev->hw.func_kva, + (void *)dlb_dev->hw.func_phys_addr, + pdev->mem_resource[0].len); + + /* BAR 2 */ + if (pdev->mem_resource[2].addr == NULL) { + DLB_ERR(dlb_dev, "probe: BAR 2 addr (func_kva) is NULL\n"); + ret = -EINVAL; + goto pci_mmap_bad_addr; + } + dlb_dev->hw.csr_kva = (void *)(uintptr_t)pdev->mem_resource[2].addr; + dlb_dev->hw.csr_phys_addr = pdev->mem_resource[2].phys_addr; + + DLB_INFO(dlb_dev, "DLB CSR VA=%p, PA=%p, len=%"PRIu64"\n", + (void *)dlb_dev->hw.csr_kva, + (void *)dlb_dev->hw.csr_phys_addr, + pdev->mem_resource[2].len); + + dlb_dev->pdev = pdev; + + ret = dlb_pf_reset(dlb_dev); + if (ret) + goto dlb_reset_fail; + + /* DLB incorrectly sends URs in response to certain messages. Mask UR + * errors to prevent these from being propagated to the MCA. + */ + ret = dlb_mask_ur_err(pdev); + if (ret) + goto mask_ur_err_fail; + + ret = dlb_pf_init_driver_state(dlb_dev); + if (ret) + goto init_driver_state_fail; + + ret = dlb_resource_init(&dlb_dev->hw); + if (ret) + goto resource_init_fail; + + dlb_dev->revision = os_get_dev_revision(&dlb_dev->hw); + + dlb_pf_init_hardware(dlb_dev); + + return dlb_dev; + +resource_init_fail: + dlb_resource_free(&dlb_dev->hw); +init_driver_state_fail: +mask_ur_err_fail: +dlb_reset_fail: +pci_mmap_bad_addr: + rte_free(dlb_dev); +dlb_dev_malloc_fail: + rte_errno = ret; + return NULL; +} + +int +dlb_pf_reset(struct dlb_dev *dlb_dev) +{ + uint16_t devsta_busy_word, devctl_word, pasid_ctrl_word, pasid_features; + int msix_cap_offset, err_cap_offset, acs_cap_offset, wait_count; + uint16_t dev_ctl_word, dev_ctl2_word, lnk_word, lnk_word2; + int pcie_cap_offset, pasid_cap_offset, pri_cap_offset; + uint16_t rt_ctl_word, pri_reqs_dword, pri_ctrl_word; + struct rte_pci_device *pdev = dlb_dev->pdev; + uint16_t slt_word, slt_word2, cmd; + int ret = 0, i = 0; + uint32_t dword[16]; + off_t off; + + /* Save PCI config state */ + + for (i = 0; i < 16; i++) { + if (rte_pci_read_config(pdev, &dword[i], 4, i * 4) != 4) + return ret; + } + + pcie_cap_offset = dlb_pci_find_capability(pdev, DLB_PCI_CAP_ID_EXP); + + if (pcie_cap_offset < 0) { + printf("[%s()] failed to find the pcie capability\n", + __func__); + return pcie_cap_offset; + } + + off = pcie_cap_offset + DLB_PCI_EXP_DEVCTL; + if (rte_pci_read_config(pdev, &dev_ctl_word, 2, off) != 2) + dev_ctl_word = 0; + + off = pcie_cap_offset + DLB_PCI_LNKCTL; + if (rte_pci_read_config(pdev, &lnk_word, 2, off) != 2) + lnk_word = 0; + + off = pcie_cap_offset + DLB_PCI_SLTCTL; + if (rte_pci_read_config(pdev, &slt_word, 2, off) != 2) + slt_word = 0; + + off = pcie_cap_offset + DLB_PCI_RTCTL; + if (rte_pci_read_config(pdev, &rt_ctl_word, 2, off) != 2) + rt_ctl_word = 0; + + off = pcie_cap_offset + DLB_PCI_EXP_DEVCTL2; + if (rte_pci_read_config(pdev, &dev_ctl2_word, 2, off) != 2) + dev_ctl2_word = 0; + + off = pcie_cap_offset + DLB_PCI_LNKCTL2; + if (rte_pci_read_config(pdev, &lnk_word2, 2, off) != 2) + lnk_word2 = 0; + + off = pcie_cap_offset + DLB_PCI_SLTCTL2; + if (rte_pci_read_config(pdev, &slt_word2, 2, off) != 2) + slt_word2 = 0; + + pri_cap_offset = dlb_pci_find_ext_capability(pdev, + DLB_PCI_EXT_CAP_ID_PRI); + if (pri_cap_offset >= 0) { + off = pri_cap_offset + DLB_PCI_PRI_ALLOC_REQ; + if (rte_pci_read_config(pdev, &pri_reqs_dword, 4, off) != 4) + pri_reqs_dword = 0; + } + + /* clear the PCI command register before issuing the FLR */ + + off = DLB_PCI_CMD; + cmd = 0; + if (rte_pci_write_config(pdev, &cmd, 2, off) != 2) { + printf("[%s()] failed to write pci config space at offset %d\n", + __func__, (int)off); + return -1; + } + + /* issue the FLR */ + for (wait_count = 0; wait_count < 4; wait_count++) { + int sleep_time; + + off = pcie_cap_offset + DLB_PCI_EXP_DEVSTA; + ret = rte_pci_read_config(pdev, &devsta_busy_word, 2, off); + if (ret != 2) { + printf("[%s()] failed to read the pci device status\n", + __func__); + return ret; + } + + if (!(devsta_busy_word & DLB_PCI_EXP_DEVSTA_TRPND)) + break; + + sleep_time = (1 << (wait_count)) * 100; + rte_delay_ms(sleep_time); + } + + if (wait_count == 4) { + printf("[%s()] wait for pci pending transactions timed out\n", + __func__); + return -1; + } + + off = pcie_cap_offset + DLB_PCI_EXP_DEVCTL; + ret = rte_pci_read_config(pdev, &devctl_word, 2, off); + if (ret != 2) { + printf("[%s()] failed to read the pcie device control\n", + __func__); + return ret; + } + + devctl_word |= DLB_PCI_EXP_DEVCTL_BCR_FLR; + + if (rte_pci_write_config(pdev, &devctl_word, 2, off) != 2) { + printf("[%s()] failed to write the pcie device control at offset %d\n", + __func__, (int)off); + return -1; + } + + rte_delay_ms(100); + + /* Restore PCI config state */ + + if (pcie_cap_offset >= 0) { + off = pcie_cap_offset + DLB_PCI_EXP_DEVCTL; + if (rte_pci_write_config(pdev, &dev_ctl_word, 2, off) != 2) { + printf("[%s()] failed to write the pcie device control at offset %d\n", + __func__, (int)off); + return -1; + } + + off = pcie_cap_offset + DLB_PCI_LNKCTL; + if (rte_pci_write_config(pdev, &lnk_word, 2, off) != 2) { + printf("[%s()] failed to write pci config space at offset %d\n", + __func__, (int)off); + return -1; + } + + off = pcie_cap_offset + DLB_PCI_SLTCTL; + if (rte_pci_write_config(pdev, &slt_word, 2, off) != 2) { + printf("[%s()] failed to write pci config space at offset %d\n", + __func__, (int)off); + return -1; + } + + off = pcie_cap_offset + DLB_PCI_RTCTL; + if (rte_pci_write_config(pdev, &rt_ctl_word, 2, off) != 2) { + printf("[%s()] failed to write pci config space at offset %d\n", + __func__, (int)off); + return -1; + } + + off = pcie_cap_offset + DLB_PCI_EXP_DEVCTL2; + if (rte_pci_write_config(pdev, &dev_ctl2_word, 2, off) != 2) { + printf("[%s()] failed to write pci config space at offset %d\n", + __func__, (int)off); + return -1; + } + + off = pcie_cap_offset + DLB_PCI_LNKCTL2; + if (rte_pci_write_config(pdev, &lnk_word2, 2, off) != 2) { + printf("[%s()] failed to write pci config space at offset %d\n", + __func__, (int)off); + return -1; + } + + off = pcie_cap_offset + DLB_PCI_SLTCTL2; + if (rte_pci_write_config(pdev, &slt_word2, 2, off) != 2) { + printf("[%s()] failed to write pci config space at offset %d\n", + __func__, (int)off); + return -1; + } + } + + pasid_cap_offset = dlb_pci_find_ext_capability(pdev, + DLB_PCI_EXT_CAP_ID_PAS); + if (pasid_cap_offset >= 0) { + off = pasid_cap_offset + DLB_PCI_PASID_CAP; + if (rte_pci_read_config(pdev, &pasid_features, 2, off) != 2) + pasid_features = 0; + + pasid_features &= DLB_PCI_PASID_CAP_EXEC; + pasid_features &= DLB_PCI_PASID_CAP_PRIV; + pasid_ctrl_word = DLB_PCI_PASID_CTRL_ENABLE | pasid_features; + + off = pasid_cap_offset + DLB_PCI_PASID_CTRL; + if (rte_pci_write_config(pdev, &pasid_ctrl_word, 2, off) != 2) { + printf("[%s()] failed to write pci config space at offset %d\n", + __func__, (int)off); + return -1; + } + } + + if (pri_cap_offset >= 0) { + pri_ctrl_word = DLB_PCI_PRI_CTRL_ENABLE; + + off = pri_cap_offset + DLB_PCI_PRI_ALLOC_REQ; + if (rte_pci_write_config(pdev, &pri_reqs_dword, 4, off) != 4) { + printf("[%s()] failed to write pci config space at offset %d\n", + __func__, (int)off); + return -1; + } + + off = pri_cap_offset + DLB_PCI_PRI_CTRL; + if (rte_pci_write_config(pdev, &pri_ctrl_word, 2, off) != 2) { + printf("[%s()] failed to write pci config space at offset %d\n", + __func__, (int)off); + return -1; + } + } + + err_cap_offset = dlb_pci_find_ext_capability(pdev, + DLB_PCI_EXT_CAP_ID_ERR); + if (err_cap_offset >= 0) { + uint32_t tmp; + + off = err_cap_offset + DLB_PCI_ERR_ROOT_STATUS; + if (rte_pci_read_config(pdev, &tmp, 4, off) != 4) + tmp = 0; + + if (rte_pci_write_config(pdev, &tmp, 4, off) != 4) { + printf("[%s()] failed to write pci config space at offset %d\n", + __func__, (int)off); + return -1; + } + + off = err_cap_offset + DLB_PCI_ERR_COR_STATUS; + if (rte_pci_read_config(pdev, &tmp, 4, off) != 4) + tmp = 0; + + if (rte_pci_write_config(pdev, &tmp, 4, off) != 4) { + printf("[%s()] failed to write pci config space at offset %d\n", + __func__, (int)off); + return -1; + } + + off = err_cap_offset + DLB_PCI_ERR_UNCOR_STATUS; + if (rte_pci_read_config(pdev, &tmp, 4, off) != 4) + tmp = 0; + + if (rte_pci_write_config(pdev, &tmp, 4, off) != 4) { + printf("[%s()] failed to write pci config space at offset %d\n", + __func__, (int)off); + return -1; + } + } + + for (i = 16; i > 0; i--) { + off = (i - 1) * 4; + if (rte_pci_write_config(pdev, &dword[i - 1], 4, off) != 4) { + printf("[%s()] failed to write pci config space at offset %d\n", + __func__, (int)off); + return -1; + } + } + + off = DLB_PCI_CMD; + if (rte_pci_read_config(pdev, &cmd, 2, off) == 2) { + cmd &= ~DLB_PCI_COMMAND_INTX_DISABLE; + if (rte_pci_write_config(pdev, &cmd, 2, off) != 2) { + printf("[%s()] failed to write pci config space\n", + __func__); + return -1; + } + } + + msix_cap_offset = dlb_pci_find_capability(pdev, DLB_PCI_CAP_ID_MSIX); + if (msix_cap_offset >= 0) { + off = msix_cap_offset + DLB_PCI_MSIX_FLAGS; + if (rte_pci_read_config(pdev, &cmd, 2, off) == 2) { + cmd |= DLB_PCI_MSIX_FLAGS_ENABLE; + cmd |= DLB_PCI_MSIX_FLAGS_MASKALL; + if (rte_pci_write_config(pdev, &cmd, 2, off) != 2) { + printf("[%s()] failed to write msix flags\n", + __func__); + return -1; + } + } + + off = msix_cap_offset + DLB_PCI_MSIX_FLAGS; + if (rte_pci_read_config(pdev, &cmd, 2, off) == 2) { + cmd &= ~DLB_PCI_MSIX_FLAGS_MASKALL; + if (rte_pci_write_config(pdev, &cmd, 2, off) != 2) { + printf("[%s()] failed to write msix flags\n", + __func__); + return -1; + } + } + } + + acs_cap_offset = dlb_pci_find_ext_capability(pdev, + DLB_PCI_EXT_CAP_ID_ACS); + if (acs_cap_offset >= 0) { + uint16_t acs_cap, acs_ctrl, acs_mask; + off = acs_cap_offset + DLB_PCI_ACS_CAP; + if (rte_pci_read_config(pdev, &acs_cap, 2, off) != 2) + acs_cap = 0; + + off = acs_cap_offset + DLB_PCI_ACS_CTRL; + if (rte_pci_read_config(pdev, &acs_ctrl, 2, off) != 2) + acs_ctrl = 0; + + acs_mask = DLB_PCI_ACS_SV | DLB_PCI_ACS_RR; + acs_mask |= (DLB_PCI_ACS_CR | DLB_PCI_ACS_UF); + acs_ctrl |= (acs_cap & acs_mask); + + if (rte_pci_write_config(pdev, &acs_ctrl, 2, off) != 2) { + printf("[%s()] failed to write pci config space at offset %d\n", + __func__, (int)off); + return -1; + } + + off = acs_cap_offset + DLB_PCI_ACS_CTRL; + if (rte_pci_read_config(pdev, &acs_ctrl, 2, off) != 2) + acs_ctrl = 0; + + acs_mask = DLB_PCI_ACS_RR | DLB_PCI_ACS_CR | DLB_PCI_ACS_EC; + acs_ctrl &= ~acs_mask; + + off = acs_cap_offset + DLB_PCI_ACS_CTRL; + if (rte_pci_write_config(pdev, &acs_ctrl, 2, off) != 2) { + printf("[%s()] failed to write pci config space at offset %d\n", + __func__, (int)off); + return -1; + } + } + + return 0; +} + +/*******************************/ +/****** Driver management ******/ +/*******************************/ + +int +dlb_pf_init_driver_state(struct dlb_dev *dlb_dev) +{ + if (rte_cpu_get_flag_enabled(RTE_CPUFLAG_MOVDIR64B)) + dlb_dev->enqueue_four = dlb_movdir64b; + else + dlb_dev->enqueue_four = dlb_movntdq; + + /* Initialize software state */ + rte_spinlock_init(&dlb_dev->resource_mutex); + rte_spinlock_init(&dlb_dev->measurement_lock); + + return 0; +} + +void +dlb_pf_init_hardware(struct dlb_dev *dlb_dev) +{ + dlb_disable_dp_vasr_feature(&dlb_dev->hw); + + dlb_enable_excess_tokens_alarm(&dlb_dev->hw); + + if (dlb_dev->revision >= DLB_REV_B0) { + dlb_hw_enable_sparse_ldb_cq_mode(&dlb_dev->hw); + dlb_hw_enable_sparse_dir_cq_mode(&dlb_dev->hw); + } + + if (dlb_dev->revision >= DLB_REV_B0) { + dlb_hw_disable_pf_to_vf_isr_pend_err(&dlb_dev->hw); + dlb_hw_disable_vf_to_pf_isr_pend_err(&dlb_dev->hw); + } +} diff --git a/drivers/event/dlb/pf/dlb_main.h b/drivers/event/dlb/pf/dlb_main.h new file mode 100644 index 0000000..5fbfcea --- /dev/null +++ b/drivers/event/dlb/pf/dlb_main.h @@ -0,0 +1,54 @@ +/* SPDX-License-Identifier: BSD-3-Clause + * Copyright(c) 2016-2020 Intel Corporation + */ + +#ifndef __DLB_MAIN_H +#define __DLB_MAIN_H + +#include <rte_debug.h> +#include <rte_log.h> +#include <rte_spinlock.h> +#include <rte_pci.h> +#include <rte_bus_pci.h> + +#ifndef PAGE_SIZE +#define PAGE_SIZE (sysconf(_SC_PAGESIZE)) +#endif + +#include "base/dlb_hw_types.h" +#include "../dlb_user.h" + +#define DLB_DEFAULT_UNREGISTER_TIMEOUT_S 5 + +struct dlb_dev; + +struct dlb_dev { + struct rte_pci_device *pdev; + struct dlb_hw hw; + /* struct list_head list; */ + struct device *dlb_device; + /* The enqueue_four function enqueues four HCWs (one cache-line worth) + * to the DLB, using whichever mechanism is supported by the platform + * on which this driver is running. + */ + void (*enqueue_four)(void *qe4, void *pp_addr); + bool domain_reset_failed; + /* The resource mutex serializes access to driver data structures and + * hardware registers. + */ + rte_spinlock_t resource_mutex; + rte_spinlock_t measurement_lock; + bool worker_launched; + u8 revision; +}; + +struct dlb_dev *dlb_probe(struct rte_pci_device *pdev); +void dlb_reset_done(struct dlb_dev *dlb_dev); + +/* pf_ops */ +int dlb_pf_init_driver_state(struct dlb_dev *dev); +void dlb_pf_free_driver_state(struct dlb_dev *dev); +void dlb_pf_init_hardware(struct dlb_dev *dev); +int dlb_pf_reset(struct dlb_dev *dlb_dev); + +#endif /* __DLB_MAIN_H */ diff --git a/drivers/event/dlb/pf/dlb_pf.c b/drivers/event/dlb/pf/dlb_pf.c new file mode 100644 index 0000000..329497d --- /dev/null +++ b/drivers/event/dlb/pf/dlb_pf.c @@ -0,0 +1,782 @@ +/* SPDX-License-Identifier: BSD-3-Clause + * Copyright(c) 2016-2020 Intel Corporation + */ + +#include <stdint.h> +#include <stdbool.h> +#include <stdio.h> +#include <sys/mman.h> +#include <sys/fcntl.h> +#include <sys/time.h> +#include <errno.h> +#include <assert.h> +#include <unistd.h> +#include <string.h> +#include <rte_debug.h> +#include <rte_log.h> +#include <rte_dev.h> +#include <rte_devargs.h> +#include <rte_mbuf.h> +#include <rte_ring.h> +#include <rte_errno.h> +#include <rte_kvargs.h> +#include <rte_malloc.h> +#include <rte_cycles.h> +#include <rte_io.h> +#include <rte_pci.h> +#include <rte_bus_pci.h> +#include <rte_eventdev.h> +#include <rte_eventdev_pmd.h> +#include <rte_eventdev_pmd_pci.h> +#include <rte_memory.h> +#include <rte_string_fns.h> + +#include "../dlb_priv.h" +#include "../dlb_iface.h" +#include "../dlb_inline_fns.h" +#include "dlb_main.h" +#include "base/dlb_hw_types.h" +#include "base/dlb_osdep.h" +#include "base/dlb_resource.h" + +extern struct dlb_dev *dlb_probe(struct rte_pci_device *pdev); +extern struct process_local_port_data dlb_port[][NUM_DLB_PORT_TYPES]; + +static const char *event_dlb_pf_name = EVDEV_DLB_NAME_PMD_STR; + +static void +dlb_pf_low_level_io_init(struct dlb_eventdev *dlb __rte_unused) +{ + int i; + + /* Addresses will be initialized at port create */ + for (i = 0; i < DLB_MAX_NUM_PORTS; i++) { + /* First directed ports */ + + /* producer port */ + dlb_port[i][DLB_DIR].pp_addr = NULL; + + /* popcount */ + dlb_port[i][DLB_DIR].ldb_popcount = NULL; + dlb_port[i][DLB_DIR].dir_popcount = NULL; + + /* consumer queue */ + dlb_port[i][DLB_DIR].cq_base = NULL; + dlb_port[i][DLB_DIR].mmaped = true; + + /* Now load balanced ports */ + + /* producer port */ + dlb_port[i][DLB_LDB].pp_addr = NULL; + + /* popcount */ + dlb_port[i][DLB_LDB].ldb_popcount = NULL; + dlb_port[i][DLB_LDB].dir_popcount = NULL; + + /* consumer queue */ + dlb_port[i][DLB_LDB].cq_base = NULL; + dlb_port[i][DLB_LDB].mmaped = true; + } +} + +static int +dlb_pf_open(struct dlb_hw_dev *handle, const char *name) +{ + RTE_SET_USED(handle); + RTE_SET_USED(name); + + return 0; +} + +static void +dlb_pf_domain_close(struct dlb_eventdev *dlb) +{ + struct dlb_dev *dlb_dev = (struct dlb_dev *)dlb->qm_instance.pf_dev; + int ret; + + ret = dlb_reset_domain(&dlb_dev->hw, + dlb->qm_instance.domain_id, + false, + 0); + if (ret) + DLB_LOG_ERR("dlb_pf_reset_domain err %d", ret); +} + +static int +dlb_pf_get_device_version(struct dlb_hw_dev *handle, + uint8_t *revision) +{ + struct dlb_dev *dlb_dev = (struct dlb_dev *)handle->pf_dev; + + *revision = dlb_dev->revision; + + return 0; +} + +#define PF_ID_ZERO 0 /* PF ONLY! */ +#define NO_OWNER_VF 0 /* PF ONLY! */ +#define NOT_VF_REQ false /* PF ONLY! */ + +static int +dlb_pf_get_num_resources(struct dlb_hw_dev *handle, + struct dlb_get_num_resources_args *rsrcs) +{ + struct dlb_dev *dlb_dev = (struct dlb_dev *)handle->pf_dev; + + return dlb_hw_get_num_resources(&dlb_dev->hw, rsrcs, false, 0); +} + +static int +dlb_pf_sched_domain_create(struct dlb_hw_dev *handle, + struct dlb_create_sched_domain_args *arg) +{ + struct dlb_dev *dlb_dev = (struct dlb_dev *)handle->pf_dev; + struct dlb_cmd_response response = {0}; + int ret; + + DLB_INFO(dev->dlb_device, "Entering %s()\n", __func__); + + if (dlb_dev->domain_reset_failed) { + response.status = DLB_ST_DOMAIN_RESET_FAILED; + ret = -EINVAL; + goto done; + } + + ret = dlb_hw_create_sched_domain(&dlb_dev->hw, arg, &response, + NOT_VF_REQ, PF_ID_ZERO); + if (ret) + goto done; + +done: + + *(struct dlb_cmd_response *)arg->response = response; + + DLB_INFO(dev->dlb_device, "Exiting %s() with ret=%d\n", __func__, ret); + + return ret; +} + +static int +dlb_pf_ldb_credit_pool_create(struct dlb_hw_dev *handle, + struct dlb_create_ldb_pool_args *cfg) +{ + struct dlb_dev *dlb_dev = (struct dlb_dev *)handle->pf_dev; + struct dlb_cmd_response response = {0}; + int ret; + + DLB_INFO(dev->dlb_device, "Entering %s()\n", __func__); + + ret = dlb_hw_create_ldb_pool(&dlb_dev->hw, + handle->domain_id, + cfg, + &response, + NOT_VF_REQ, + PF_ID_ZERO); + + *(struct dlb_cmd_response *)cfg->response = response; + + DLB_INFO(dev->dlb_device, "Exiting %s() with ret=%d\n", __func__, ret); + + return ret; +} + +static int +dlb_pf_dir_credit_pool_create(struct dlb_hw_dev *handle, + struct dlb_create_dir_pool_args *cfg) +{ + struct dlb_dev *dlb_dev = (struct dlb_dev *)handle->pf_dev; + struct dlb_cmd_response response = {0}; + int ret; + + DLB_INFO(dev->dlb_device, "Entering %s()\n", __func__); + + ret = dlb_hw_create_dir_pool(&dlb_dev->hw, + handle->domain_id, + cfg, + &response, + NOT_VF_REQ, + PF_ID_ZERO); + + *(struct dlb_cmd_response *)cfg->response = response; + + DLB_INFO(dev->dlb_device, "Exiting %s() with ret=%d\n", __func__, ret); + + return ret; +} + +static int +dlb_pf_ldb_queue_create(struct dlb_hw_dev *handle, + struct dlb_create_ldb_queue_args *cfg) +{ + struct dlb_dev *dlb_dev = (struct dlb_dev *)handle->pf_dev; + struct dlb_cmd_response response = {0}; + int ret; + + DLB_INFO(dev->dlb_device, "Entering %s()\n", __func__); + + ret = dlb_hw_create_ldb_queue(&dlb_dev->hw, + handle->domain_id, + cfg, + &response, + NOT_VF_REQ, + PF_ID_ZERO); + + *(struct dlb_cmd_response *)cfg->response = response; + + DLB_INFO(dev->dlb_device, "Exiting %s() with ret=%d\n", __func__, ret); + + return ret; +} + +static int +dlb_pf_dir_queue_create(struct dlb_hw_dev *handle, + struct dlb_create_dir_queue_args *cfg) +{ + struct dlb_dev *dlb_dev = (struct dlb_dev *)handle->pf_dev; + struct dlb_cmd_response response = {0}; + int ret; + + DLB_INFO(dev->dlb_device, "Entering %s()\n", __func__); + + ret = dlb_hw_create_dir_queue(&dlb_dev->hw, + handle->domain_id, + cfg, + &response, + NOT_VF_REQ, + PF_ID_ZERO); + + *(struct dlb_cmd_response *)cfg->response = response; + + DLB_INFO(dev->dlb_device, "Exiting %s() with ret=%d\n", __func__, ret); + + return ret; +} + +static void * +dlb_alloc_coherent_aligned(rte_iova_t *phys, size_t size, int align) +{ + const struct rte_memzone *mz; + char mz_name[RTE_MEMZONE_NAMESIZE]; + uint32_t core_id = rte_lcore_id(); + unsigned int socket_id; + + snprintf(mz_name, sizeof(mz_name) - 1, "%lx", + (unsigned long)rte_get_timer_cycles()); + if (core_id == (unsigned int)LCORE_ID_ANY) + core_id = rte_get_master_lcore(); + socket_id = rte_lcore_to_socket_id(core_id); + mz = rte_memzone_reserve_aligned(mz_name, size, socket_id, + RTE_MEMZONE_IOVA_CONTIG, align); + if (!mz) { + rte_panic("Unable to allocate DMA memory of size %zu bytes - %s\n", + size, rte_strerror(rte_errno)); + *phys = 0; + return NULL; + } + *phys = mz->iova; + return mz->addr; +} + +static int +dlb_pf_ldb_port_create(struct dlb_hw_dev *handle, + struct dlb_create_ldb_port_args *cfg, + enum dlb_cq_poll_modes poll_mode) +{ + struct dlb_dev *dlb_dev = (struct dlb_dev *)handle->pf_dev; + struct dlb_cmd_response response = {0}; + int ret; + uint8_t *port_base; + int alloc_sz, qe_sz, cq_alloc_depth; + rte_iova_t pp_dma_base; + rte_iova_t pc_dma_base; + rte_iova_t cq_dma_base; + int is_dir = false; + + DLB_INFO(dev->dlb_device, "Entering %s()\n", __func__); + + if (poll_mode == DLB_CQ_POLL_MODE_STD) + qe_sz = sizeof(struct dlb_dequeue_qe); + else + qe_sz = RTE_CACHE_LINE_SIZE; + + /* The hardware always uses a CQ depth of at least + * DLB_MIN_HARDWARE_CQ_DEPTH, even though from the user + * perspective we support a depth as low as 1 for LDB ports. + */ + cq_alloc_depth = RTE_MAX(cfg->cq_depth, DLB_MIN_HARDWARE_CQ_DEPTH); + + /* Calculate the port memory required, including two cache lines for + * credit pop counts. Round up to the nearest cache line. + */ + alloc_sz = 2 * RTE_CACHE_LINE_SIZE + cq_alloc_depth * qe_sz; + alloc_sz = RTE_CACHE_LINE_ROUNDUP(alloc_sz); + + port_base = dlb_alloc_coherent_aligned(&pc_dma_base, + alloc_sz, + PAGE_SIZE); + if (port_base == NULL) + return -ENOMEM; + + /* Lock the page in memory */ + ret = rte_mem_lock_page(port_base); + if (ret < 0) + rte_panic("dlb pf pmd could not lock page for device i/o\n"); + + memset(port_base, 0, alloc_sz); + cq_dma_base = (uintptr_t)(pc_dma_base + (2 * RTE_CACHE_LINE_SIZE)); + + ret = dlb_hw_create_ldb_port(&dlb_dev->hw, + handle->domain_id, + cfg, + pc_dma_base, + cq_dma_base, + &response, + NOT_VF_REQ, + PF_ID_ZERO); + if (ret) + goto create_port_err; + + pp_dma_base = (uintptr_t)dlb_dev->hw.func_kva + PP_BASE(is_dir); + dlb_port[response.id][DLB_LDB].pp_addr = + (void *)(uintptr_t)(pp_dma_base + (PAGE_SIZE * response.id)); + + dlb_port[response.id][DLB_LDB].cq_base = + (void *)(uintptr_t)(port_base + (2 * RTE_CACHE_LINE_SIZE)); + + dlb_port[response.id][DLB_LDB].ldb_popcount = + (void *)(uintptr_t)port_base; + dlb_port[response.id][DLB_LDB].dir_popcount = (void *)(uintptr_t) + (port_base + RTE_CACHE_LINE_SIZE); + + *(struct dlb_cmd_response *)cfg->response = response; + + DLB_INFO(dev->dlb_device, "Exiting %s() with ret=%d\n", __func__, ret); + +create_port_err: + + return ret; +} + +static int +dlb_pf_dir_port_create(struct dlb_hw_dev *handle, + struct dlb_create_dir_port_args *cfg, + enum dlb_cq_poll_modes poll_mode) +{ + struct dlb_dev *dlb_dev = (struct dlb_dev *)handle->pf_dev; + struct dlb_cmd_response response = {0}; + int ret; + uint8_t *port_base; + int alloc_sz, qe_sz; + rte_iova_t pp_dma_base; + rte_iova_t pc_dma_base; + rte_iova_t cq_dma_base; + int is_dir = true; + + DLB_INFO(dev->dlb_device, "Entering %s()\n", __func__); + + if (poll_mode == DLB_CQ_POLL_MODE_STD) + qe_sz = sizeof(struct dlb_dequeue_qe); + else + qe_sz = RTE_CACHE_LINE_SIZE; + + /* Calculate the port memory required, including two cache lines for + * credit pop counts. Round up to the nearest cache line. + */ + alloc_sz = 2 * RTE_CACHE_LINE_SIZE + cfg->cq_depth * qe_sz; + alloc_sz = RTE_CACHE_LINE_ROUNDUP(alloc_sz); + + port_base = dlb_alloc_coherent_aligned(&pc_dma_base, + alloc_sz, + PAGE_SIZE); + if (port_base == NULL) + return -ENOMEM; + + /* Lock the page in memory */ + ret = rte_mem_lock_page(port_base); + if (ret < 0) + rte_panic("dlb pf pmd could not lock page for device i/o\n"); + + memset(port_base, 0, alloc_sz); + cq_dma_base = (uintptr_t)(pc_dma_base + (2 * RTE_CACHE_LINE_SIZE)); + + ret = dlb_hw_create_dir_port(&dlb_dev->hw, + handle->domain_id, + cfg, + pc_dma_base, + cq_dma_base, + &response, + NOT_VF_REQ, + PF_ID_ZERO); + if (ret) + goto create_port_err; + + pp_dma_base = (uintptr_t)dlb_dev->hw.func_kva + PP_BASE(is_dir); + dlb_port[response.id][DLB_DIR].pp_addr = + (void *)(uintptr_t)(pp_dma_base + (PAGE_SIZE * response.id)); + + dlb_port[response.id][DLB_DIR].cq_base = + (void *)(uintptr_t)(port_base + (2 * RTE_CACHE_LINE_SIZE)); + + dlb_port[response.id][DLB_DIR].ldb_popcount = + (void *)(uintptr_t)port_base; + dlb_port[response.id][DLB_DIR].dir_popcount = (void *)(uintptr_t) + (port_base + RTE_CACHE_LINE_SIZE); + + *(struct dlb_cmd_response *)cfg->response = response; + + DLB_INFO(dev->dlb_device, "Exiting %s() with ret=%d\n", __func__, ret); + +create_port_err: + + return ret; +} + +static int +dlb_pf_map_qid(struct dlb_hw_dev *handle, + struct dlb_map_qid_args *cfg) +{ + struct dlb_dev *dlb_dev = (struct dlb_dev *)handle->pf_dev; + struct dlb_cmd_response response = {0}; + int ret; + + DLB_INFO(dev->dlb_device, "Entering %s()\n", __func__); + + ret = dlb_hw_map_qid(&dlb_dev->hw, + handle->domain_id, + cfg, + &response, + NOT_VF_REQ, + PF_ID_ZERO); + + *(struct dlb_cmd_response *)cfg->response = response; + + DLB_INFO(dev->dlb_device, "Exiting %s() with ret=%d\n", __func__, ret); + + return ret; +} + +static int +dlb_pf_unmap_qid(struct dlb_hw_dev *handle, + struct dlb_unmap_qid_args *cfg) +{ + struct dlb_dev *dlb_dev = (struct dlb_dev *)handle->pf_dev; + struct dlb_cmd_response response = {0}; + int ret; + + DLB_INFO(dev->dlb_device, "Entering %s()\n", __func__); + + ret = dlb_hw_unmap_qid(&dlb_dev->hw, + handle->domain_id, + cfg, + &response, + NOT_VF_REQ, + PF_ID_ZERO); + + *(struct dlb_cmd_response *)cfg->response = response; + + DLB_INFO(dev->dlb_device, "Exiting %s() with ret=%d\n", __func__, ret); + + return ret; +} + +static int +dlb_pf_sched_domain_start(struct dlb_hw_dev *handle, + struct dlb_start_domain_args *cfg) +{ + struct dlb_dev *dlb_dev = (struct dlb_dev *)handle->pf_dev; + struct dlb_cmd_response response = {0}; + int ret; + + DLB_INFO(dev->dlb_device, "Entering %s()\n", __func__); + + ret = dlb_hw_start_domain(&dlb_dev->hw, + handle->domain_id, + cfg, + &response, + NOT_VF_REQ, + PF_ID_ZERO); + + *(struct dlb_cmd_response *)cfg->response = response; + + DLB_INFO(dev->dlb_device, "Exiting %s() with ret=%d\n", __func__, ret); + + return ret; +} + +static int +dlb_pf_pending_port_unmaps(struct dlb_hw_dev *handle, + struct dlb_pending_port_unmaps_args *args) +{ + struct dlb_dev *dlb_dev = (struct dlb_dev *)handle->pf_dev; + struct dlb_cmd_response response = {0}; + int ret; + + DLB_INFO(dev->dlb_device, "Entering %s()\n", __func__); + + ret = dlb_hw_pending_port_unmaps(&dlb_dev->hw, + handle->domain_id, + args, + &response, + NOT_VF_REQ, + PF_ID_ZERO); + + *(struct dlb_cmd_response *)args->response = response; + + DLB_INFO(dev->dlb_device, "Exiting %s() with ret=%d\n", __func__, ret); + + return ret; +} + +static int +dlb_pf_get_ldb_queue_depth(struct dlb_hw_dev *handle, + struct dlb_get_ldb_queue_depth_args *args) +{ + struct dlb_dev *dlb_dev = (struct dlb_dev *)handle->pf_dev; + struct dlb_cmd_response response = {0}; + int ret; + + DLB_INFO(dev->dlb_device, "Entering %s()\n", __func__); + + ret = dlb_hw_get_ldb_queue_depth(&dlb_dev->hw, + handle->domain_id, + args, + &response, + NOT_VF_REQ, + PF_ID_ZERO); + + *(struct dlb_cmd_response *)args->response = response; + + DLB_INFO(dev->dlb_device, "Exiting %s() with ret=%d\n", __func__, ret); + + return ret; +} + +static int +dlb_pf_get_dir_queue_depth(struct dlb_hw_dev *handle, + struct dlb_get_dir_queue_depth_args *args) +{ + struct dlb_dev *dlb_dev = (struct dlb_dev *)handle->pf_dev; + struct dlb_cmd_response response = {0}; + int ret = 0; + + DLB_INFO(dev->dlb_device, "Entering %s()\n", __func__); + + ret = dlb_hw_get_dir_queue_depth(&dlb_dev->hw, + handle->domain_id, + args, + &response, + NOT_VF_REQ, + PF_ID_ZERO); + + *(struct dlb_cmd_response *)args->response = response; + + DLB_INFO(dev->dlb_device, "Exiting %s() with ret=%d\n", __func__, ret); + + return ret; +} + +static int +dlb_pf_get_cq_poll_mode(struct dlb_hw_dev *handle, + enum dlb_cq_poll_modes *mode) +{ + struct dlb_dev *dlb_dev = (struct dlb_dev *)handle->pf_dev; + + if (dlb_dev->revision >= DLB_REV_B0) + *mode = DLB_CQ_POLL_MODE_SPARSE; + else + *mode = DLB_CQ_POLL_MODE_STD; + + return 0; +} + +static int +dlb_pf_get_sn_allocation(struct dlb_hw_dev *handle, + struct dlb_get_sn_allocation_args *args) +{ + struct dlb_dev *dlb_dev = (struct dlb_dev *)handle->pf_dev; + struct dlb_cmd_response response = {0}; + int ret; + + ret = dlb_get_group_sequence_numbers(&dlb_dev->hw, args->group); + + response.id = ret; + response.status = 0; + + *(struct dlb_cmd_response *)args->response = response; + + return ret; +} + +static int +dlb_pf_set_sn_allocation(struct dlb_hw_dev *handle, + struct dlb_set_sn_allocation_args *args) +{ + struct dlb_dev *dlb_dev = (struct dlb_dev *)handle->pf_dev; + struct dlb_cmd_response response = {0}; + int ret; + + ret = dlb_set_group_sequence_numbers(&dlb_dev->hw, args->group, + args->num); + + response.status = 0; + + *(struct dlb_cmd_response *)args->response = response; + + return ret; +} + +static int +dlb_pf_get_sn_occupancy(struct dlb_hw_dev *handle, + struct dlb_get_sn_occupancy_args *args) +{ + struct dlb_dev *dlb_dev = (struct dlb_dev *)handle->pf_dev; + struct dlb_cmd_response response = {0}; + int ret; + + ret = dlb_get_group_sequence_number_occupancy(&dlb_dev->hw, + args->group); + + response.id = ret; + response.status = 0; + + *(struct dlb_cmd_response *)args->response = response; + + return ret; +} + +static void +dlb_pf_iface_fn_ptrs_init(void) +{ + dlb_iface_low_level_io_init = dlb_pf_low_level_io_init; + dlb_iface_open = dlb_pf_open; + dlb_iface_domain_close = dlb_pf_domain_close; + dlb_iface_get_driver_version = NULL; /*dlb_pf_get_driver_version;*/ + dlb_iface_get_device_version = dlb_pf_get_device_version; + dlb_iface_get_num_resources = dlb_pf_get_num_resources; + dlb_iface_sched_domain_create = dlb_pf_sched_domain_create; + dlb_iface_ldb_credit_pool_create = dlb_pf_ldb_credit_pool_create; + dlb_iface_dir_credit_pool_create = dlb_pf_dir_credit_pool_create; + dlb_iface_ldb_queue_create = dlb_pf_ldb_queue_create; + dlb_iface_dir_queue_create = dlb_pf_dir_queue_create; + dlb_iface_ldb_port_create = dlb_pf_ldb_port_create; + dlb_iface_dir_port_create = dlb_pf_dir_port_create; + dlb_iface_map_qid = dlb_pf_map_qid; + dlb_iface_unmap_qid = dlb_pf_unmap_qid; + dlb_iface_sched_domain_start = dlb_pf_sched_domain_start; + dlb_iface_pending_port_unmaps = dlb_pf_pending_port_unmaps; + dlb_iface_get_ldb_queue_depth = dlb_pf_get_ldb_queue_depth; + dlb_iface_get_dir_queue_depth = dlb_pf_get_dir_queue_depth; + dlb_iface_get_cq_poll_mode = dlb_pf_get_cq_poll_mode; + dlb_iface_get_sn_allocation = dlb_pf_get_sn_allocation; + dlb_iface_set_sn_allocation = dlb_pf_set_sn_allocation; + dlb_iface_get_sn_occupancy = dlb_pf_get_sn_occupancy; +} + +/* PCI DEV HOOKS */ +static int +dlb_eventdev_pci_init(struct rte_eventdev *eventdev) +{ + int ret = 0; + struct rte_pci_device *pci_dev; + struct dlb_devargs dlb_args = { + .socket_id = rte_socket_id(), + .max_num_events = DLB_MAX_NUM_LDB_CREDITS, + .num_dir_credits_override = -1, + .defer_sched = 0, + .num_atm_inflights = DLB_NUM_ATOMIC_INFLIGHTS_PER_QUEUE, + }; + struct dlb_eventdev *dlb; + + DLB_LOG_DBG("Enter with dev_id=%d socket_id=%d", + eventdev->data->dev_id, eventdev->data->socket_id); + + dlb_entry_points_init(eventdev); + + dlb_pf_iface_fn_ptrs_init(); + + pci_dev = RTE_DEV_TO_PCI(eventdev->dev); + + if (rte_eal_process_type() == RTE_PROC_PRIMARY) { + dlb = dlb_pmd_priv(eventdev); /* rte_zmalloc_socket mem */ + + /* Probe the DLB PF layer */ + dlb->qm_instance.pf_dev = dlb_probe(pci_dev); + + if (dlb->qm_instance.pf_dev == NULL) { + DLB_LOG_ERR("DLB PF Probe failed with error %d\n", + rte_errno); + ret = -rte_errno; + goto dlb_probe_failed; + } + + /* Were we invoked with runtime parameters? */ + if (pci_dev->device.devargs) { + ret = dlb_parse_params(pci_dev->device.devargs->args, + pci_dev->device.devargs->name, + &dlb_args); + if (ret) { + DLB_LOG_ERR("PFPMD failed to parse args ret=%d, errno=%d\n", + ret, rte_errno); + goto dlb_probe_failed; + } + } + + ret = dlb_primary_eventdev_probe(eventdev, + event_dlb_pf_name, + &dlb_args, + DLB_NOT_VDEV); + } else { + ret = dlb_secondary_eventdev_probe(eventdev, + event_dlb_pf_name, + DLB_NOT_VDEV); + } + if (ret) + goto dlb_probe_failed; + + DLB_LOG_INFO("DLB PF Probe success\n"); + + return 0; + +dlb_probe_failed: + + DLB_LOG_INFO("DLB PF Probe failed, ret=%d\n", ret); + + return ret; +} + +#define EVENTDEV_INTEL_VENDOR_ID 0x8086 + +static const struct rte_pci_id pci_id_dlb_map[] = { + { + RTE_PCI_DEVICE(EVENTDEV_INTEL_VENDOR_ID, + DLB_PF_DEV_ID) + }, + { + .vendor_id = 0, + }, +}; + +static int +event_dlb_pci_probe(struct rte_pci_driver *pci_drv, + struct rte_pci_device *pci_dev) +{ + return rte_event_pmd_pci_probe_named(pci_drv, pci_dev, + sizeof(struct dlb_eventdev), dlb_eventdev_pci_init, + event_dlb_pf_name); +} + +static int +event_dlb_pci_remove(struct rte_pci_device *pci_dev) +{ + return rte_event_pmd_pci_remove(pci_dev, NULL); +} + +static struct rte_pci_driver pci_eventdev_dlb_pmd = { + .id_table = pci_id_dlb_map, + .drv_flags = RTE_PCI_DRV_NEED_MAPPING, + .probe = event_dlb_pci_probe, + .remove = event_dlb_pci_remove, +}; + +RTE_PMD_REGISTER_PCI(event_dlb_pf, pci_eventdev_dlb_pmd); +RTE_PMD_REGISTER_PCI_TABLE(event_dlb_pf, pci_id_dlb_map); -- 1.7.10