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Ip=[192.88.168.50]; Helo=[tx30smr01.am.freescale.net] X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: MWHPR03MB3328 Subject: [dpdk-dev] [PATCH 16/27] bus/fslmc: cleanup the dpaa2 interrupt support X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 25 Aug 2017 10:50:34 -0000 Signed-off-by: Hemant Agrawal --- drivers/bus/fslmc/Makefile | 1 + drivers/bus/fslmc/fslmc_vfio.c | 108 +++++++++++++++++++++++----- drivers/bus/fslmc/fslmc_vfio.h | 8 ++- drivers/bus/fslmc/portal/dpaa2_hw_dpio.c | 18 +++-- drivers/bus/fslmc/rte_bus_fslmc_version.map | 2 + 5 files changed, 110 insertions(+), 27 deletions(-) diff --git a/drivers/bus/fslmc/Makefile b/drivers/bus/fslmc/Makefile index d1b790b..37da1b0 100644 --- a/drivers/bus/fslmc/Makefile +++ b/drivers/bus/fslmc/Makefile @@ -51,6 +51,7 @@ CFLAGS += -I$(RTE_SDK)/drivers/bus/fslmc CFLAGS += -I$(RTE_SDK)/drivers/bus/fslmc/mc CFLAGS += -I$(RTE_SDK)/drivers/bus/fslmc/qbman/include CFLAGS += -I$(RTE_SDK)/lib/librte_eal/linuxapp/eal +CFLAGS += -I$(RTE_SDK)/lib/librte_eal/common # versioning export map EXPORT_MAP := rte_bus_fslmc_version.map diff --git a/drivers/bus/fslmc/fslmc_vfio.c b/drivers/bus/fslmc/fslmc_vfio.c index cdc982b..ab1df36 100644 --- a/drivers/bus/fslmc/fslmc_vfio.c +++ b/drivers/bus/fslmc/fslmc_vfio.c @@ -46,6 +46,7 @@ #include #include +#include #include #include #include @@ -335,36 +336,107 @@ static int64_t vfio_map_mcp_obj(struct fslmc_vfio_group *group, char *mcp_obj) #define IRQ_SET_BUF_LEN (sizeof(struct vfio_irq_set) + sizeof(int)) -int rte_dpaa2_intr_enable(struct rte_intr_handle *intr_handle, - uint32_t index) +int rte_dpaa2_intr_enable(struct rte_intr_handle *intr_handle, int index) { - struct vfio_irq_set *irq_set; + int len, ret; char irq_set_buf[IRQ_SET_BUF_LEN]; - int *fd_ptr, fd, ret; + struct vfio_irq_set *irq_set; + int *fd_ptr; + + len = sizeof(irq_set_buf); - /* Prepare vfio_irq_set structure and SET the IRQ in VFIO */ - /* Give the eventfd to VFIO */ - fd = eventfd(0, 0); irq_set = (struct vfio_irq_set *)irq_set_buf; - irq_set->argsz = sizeof(irq_set_buf); + irq_set->argsz = len; irq_set->count = 1; - irq_set->flags = VFIO_IRQ_SET_DATA_EVENTFD | - VFIO_IRQ_SET_ACTION_TRIGGER; + irq_set->flags = + VFIO_IRQ_SET_DATA_EVENTFD | VFIO_IRQ_SET_ACTION_TRIGGER; irq_set->index = index; irq_set->start = 0; fd_ptr = (int *)&irq_set->data; - *fd_ptr = fd; + *fd_ptr = intr_handle->fd; ret = ioctl(intr_handle->vfio_dev_fd, VFIO_DEVICE_SET_IRQS, irq_set); - if (ret < 0) { - FSLMC_VFIO_LOG(ERR, "Unable to set IRQ in VFIO, ret: %d\n", - ret); - return -1; + if (ret) { + RTE_LOG(ERR, EAL, "Error:dpaa2 SET IRQs fd=%d, err = %d(%s)\n", + intr_handle->fd, errno, strerror(errno)); + return ret; } - /* Set the FD and update the flags */ - intr_handle->fd = fd; - return 0; + return ret; +} + +int rte_dpaa2_intr_disable(struct rte_intr_handle *intr_handle, int index) +{ + struct vfio_irq_set *irq_set; + char irq_set_buf[IRQ_SET_BUF_LEN]; + int len, ret; + + len = sizeof(struct vfio_irq_set); + + irq_set = (struct vfio_irq_set *)irq_set_buf; + irq_set->argsz = len; + irq_set->flags = VFIO_IRQ_SET_DATA_NONE | VFIO_IRQ_SET_ACTION_TRIGGER; + irq_set->index = index; + irq_set->start = 0; + irq_set->count = 0; + + ret = ioctl(intr_handle->vfio_dev_fd, VFIO_DEVICE_SET_IRQS, irq_set); + if (ret) + RTE_LOG(ERR, EAL, + "Error disabling dpaa2 interrupts for fd %d\n", + intr_handle->fd); + + return ret; +} + +/* set up interrupt support (but not enable interrupts) */ +int +rte_dpaa2_vfio_setup_intr(struct rte_intr_handle *intr_handle, + int vfio_dev_fd, + int num_irqs) +{ + int i, ret; + + /* start from MSI-X interrupt type */ + for (i = 0; i < num_irqs; i++) { + struct vfio_irq_info irq_info = { .argsz = sizeof(irq_info) }; + int fd = -1; + + irq_info.index = i; + + ret = ioctl(vfio_dev_fd, VFIO_DEVICE_GET_IRQ_INFO, &irq_info); + if (ret < 0) { + FSLMC_VFIO_LOG(ERR, + "cannot get IRQ(%d) info, error %i (%s)", + i, errno, strerror(errno)); + return -1; + } + + /* if this vector cannot be used with eventfd, + * fail if we explicitly + * specified interrupt type, otherwise continue + */ + if ((irq_info.flags & VFIO_IRQ_INFO_EVENTFD) == 0) + continue; + + /* set up an eventfd for interrupts */ + fd = eventfd(0, EFD_NONBLOCK | EFD_CLOEXEC); + if (fd < 0) { + FSLMC_VFIO_LOG(ERR, + "cannot set up eventfd, error %i (%s)\n", + errno, strerror(errno)); + return -1; + } + + intr_handle->fd = fd; + intr_handle->type = RTE_INTR_HANDLE_VFIO_MSI; + intr_handle->vfio_dev_fd = vfio_dev_fd; + + return 0; + } + + /* if we're here, we haven't found a suitable interrupt vector */ + return -1; } /* diff --git a/drivers/bus/fslmc/fslmc_vfio.h b/drivers/bus/fslmc/fslmc_vfio.h index edb86d0..5470a41 100644 --- a/drivers/bus/fslmc/fslmc_vfio.h +++ b/drivers/bus/fslmc/fslmc_vfio.h @@ -64,8 +64,12 @@ typedef struct fslmc_vfio_container { struct fslmc_vfio_group *group; } fslmc_vfio_container; -int rte_dpaa2_intr_enable(struct rte_intr_handle *intr_handle, - uint32_t index); +int rte_dpaa2_intr_enable(struct rte_intr_handle *intr_handle, int index); +int rte_dpaa2_intr_disable(struct rte_intr_handle *intr_handle, int index); + +int rte_dpaa2_vfio_setup_intr(struct rte_intr_handle *intr_handle, + int vfio_dev_fd, + int num_irqs); int fslmc_vfio_setup_group(void); int fslmc_vfio_process_group(void); diff --git a/drivers/bus/fslmc/portal/dpaa2_hw_dpio.c b/drivers/bus/fslmc/portal/dpaa2_hw_dpio.c index 8db1f6c..ff41ce4 100644 --- a/drivers/bus/fslmc/portal/dpaa2_hw_dpio.c +++ b/drivers/bus/fslmc/portal/dpaa2_hw_dpio.c @@ -440,7 +440,6 @@ dpaa2_create_dpio_device(int vdev_fd, { struct dpaa2_dpio_dev *dpio_dev; struct vfio_region_info reg_info = { .argsz = sizeof(reg_info)}; - int vfio_dev_fd; if (obj_info->num_regions < NUM_DPIO_REGIONS) { PMD_INIT_LOG(ERR, "ERROR, Not sufficient number " @@ -457,14 +456,12 @@ dpaa2_create_dpio_device(int vdev_fd, dpio_dev->dpio = NULL; dpio_dev->hw_id = object_id; - dpio_dev->intr_handle.vfio_dev_fd = vdev_fd; rte_atomic16_init(&dpio_dev->ref_count); /* Using single portal for all devices */ dpio_dev->mc_portal = rte_mcp_ptr_list[MC_PORTAL_INDEX]; reg_info.index = 0; - vfio_dev_fd = dpio_dev->intr_handle.vfio_dev_fd; - if (ioctl(vfio_dev_fd, VFIO_DEVICE_GET_REGION_INFO, ®_info)) { + if (ioctl(vdev_fd, VFIO_DEVICE_GET_REGION_INFO, ®_info)) { PMD_INIT_LOG(ERR, "vfio: error getting region info\n"); rte_free(dpio_dev); return -1; @@ -473,10 +470,10 @@ dpaa2_create_dpio_device(int vdev_fd, dpio_dev->ce_size = reg_info.size; dpio_dev->qbman_portal_ce_paddr = (uint64_t)mmap(NULL, reg_info.size, PROT_WRITE | PROT_READ, MAP_SHARED, - vfio_dev_fd, reg_info.offset); + vdev_fd, reg_info.offset); reg_info.index = 1; - if (ioctl(vfio_dev_fd, VFIO_DEVICE_GET_REGION_INFO, ®_info)) { + if (ioctl(vdev_fd, VFIO_DEVICE_GET_REGION_INFO, ®_info)) { PMD_INIT_LOG(ERR, "vfio: error getting region info\n"); rte_free(dpio_dev); return -1; @@ -485,7 +482,7 @@ dpaa2_create_dpio_device(int vdev_fd, dpio_dev->ci_size = reg_info.size; dpio_dev->qbman_portal_ci_paddr = (uint64_t)mmap(NULL, reg_info.size, PROT_WRITE | PROT_READ, MAP_SHARED, - vfio_dev_fd, reg_info.offset); + vdev_fd, reg_info.offset); if (configure_dpio_qbman_swp(dpio_dev)) { PMD_INIT_LOG(ERR, @@ -497,6 +494,13 @@ dpaa2_create_dpio_device(int vdev_fd, io_space_count++; dpio_dev->index = io_space_count; + + if (rte_dpaa2_vfio_setup_intr(&dpio_dev->intr_handle, vdev_fd, 1)) { + PMD_INIT_LOG(ERR, "Fail to setup interrupt for %d\n", + dpio_dev->hw_id); + rte_free(dpio_dev); + } + TAILQ_INSERT_TAIL(&dpio_dev_list, dpio_dev, next); PMD_INIT_LOG(DEBUG, "DPAA2: Added [dpio.%d]", object_id); diff --git a/drivers/bus/fslmc/rte_bus_fslmc_version.map b/drivers/bus/fslmc/rte_bus_fslmc_version.map index 7b25248..51a2ac6 100644 --- a/drivers/bus/fslmc/rte_bus_fslmc_version.map +++ b/drivers/bus/fslmc/rte_bus_fslmc_version.map @@ -85,5 +85,7 @@ DPDK_17.11 { dpaa2_dpbp_supported; rte_dpaa2_dev_type; + rte_dpaa2_intr_disable; + rte_dpaa2_intr_enable; } DPDK_17.08; -- 2.7.4