diff options
author | Raghu Vatsavayi <rvatsavayi@caviumnetworks.com> | 2016-11-14 15:54:44 -0800 |
---|---|---|
committer | David S. Miller <davem@davemloft.net> | 2016-11-15 22:24:40 -0500 |
commit | 515e752d2b877f79eefb9c512d7ab63f082bbe3a (patch) | |
tree | 59b9f3902a1bfc21f0f76861471393480ae0107f /drivers | |
parent | 86dea55b9aef494b349c5e77e7793a8b2c7d8f1f (diff) | |
download | linux-515e752d2b877f79eefb9c512d7ab63f082bbe3a.tar.bz2 |
liquidio CN23XX: device states
Cleaned up resource leaks during destroy resources by
introducing more device states.
Signed-off-by: Raghu Vatsavayi <raghu.vatsavayi@caviumnetworks.com>
Signed-off-by: Derek Chickles <derek.chickles@caviumnetworks.com>
Signed-off-by: Satanand Burla <satananda.burla@caviumnetworks.com>
Signed-off-by: Felix Manlunas <felix.manlunas@caviumnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers')
6 files changed, 64 insertions, 31 deletions
diff --git a/drivers/net/ethernet/cavium/liquidio/lio_main.c b/drivers/net/ethernet/cavium/liquidio/lio_main.c index 8c82cd33c065..8aa862bcb7ea 100644 --- a/drivers/net/ethernet/cavium/liquidio/lio_main.c +++ b/drivers/net/ethernet/cavium/liquidio/lio_main.c @@ -770,6 +770,7 @@ static void delete_glists(struct lio *lio) } kfree((void *)lio->glist); + kfree((void *)lio->glist_lock); } /** @@ -1329,6 +1330,7 @@ liquidio_probe(struct pci_dev *pdev, complete(&first_stage); if (octeon_device_init(oct_dev)) { + complete(&hs->init); liquidio_remove(pdev); return -ENOMEM; } @@ -1353,7 +1355,15 @@ liquidio_probe(struct pci_dev *pdev, oct_dev->watchdog_task = kthread_create( liquidio_watchdog, oct_dev, "liowd/%02hhx:%02hhx.%hhx", bus, device, function); - wake_up_process(oct_dev->watchdog_task); + if (!IS_ERR(oct_dev->watchdog_task)) { + wake_up_process(oct_dev->watchdog_task); + } else { + oct_dev->watchdog_task = NULL; + dev_err(&oct_dev->pci_dev->dev, + "failed to create kernel_thread\n"); + liquidio_remove(pdev); + return -1; + } } } @@ -1417,6 +1427,8 @@ static void octeon_destroy_resources(struct octeon_device *oct) if (lio_wait_for_oq_pkts(oct)) dev_err(&oct->pci_dev->dev, "OQ had pending packets\n"); + /* fallthrough */ + case OCT_DEV_INTR_SET_DONE: /* Disable interrupts */ oct->fn_list.disable_interrupt(oct, OCTEON_ALL_INTR); @@ -1443,6 +1455,8 @@ static void octeon_destroy_resources(struct octeon_device *oct) pci_disable_msi(oct->pci_dev); } + /* fallthrough */ + case OCT_DEV_MSIX_ALLOC_VECTOR_DONE: if (OCTEON_CN23XX_PF(oct)) octeon_free_ioq_vector(oct); @@ -1508,10 +1522,13 @@ static void octeon_destroy_resources(struct octeon_device *oct) octeon_unmap_pci_barx(oct, 1); /* fallthrough */ - case OCT_DEV_BEGIN_STATE: + case OCT_DEV_PCI_ENABLE_DONE: + pci_clear_master(oct->pci_dev); /* Disable the device, releasing the PCI INT */ pci_disable_device(oct->pci_dev); + /* fallthrough */ + case OCT_DEV_BEGIN_STATE: /* Nothing to be done here either */ break; } /* end switch (oct->status) */ @@ -1781,6 +1798,7 @@ static int octeon_pci_os_setup(struct octeon_device *oct) if (dma_set_mask_and_coherent(&oct->pci_dev->dev, DMA_BIT_MASK(64))) { dev_err(&oct->pci_dev->dev, "Unexpected DMA device capability\n"); + pci_disable_device(oct->pci_dev); return 1; } @@ -4434,6 +4452,8 @@ static int octeon_device_init(struct octeon_device *octeon_dev) if (octeon_pci_os_setup(octeon_dev)) return 1; + atomic_set(&octeon_dev->status, OCT_DEV_PCI_ENABLE_DONE); + /* Identify the Octeon type and map the BAR address space. */ if (octeon_chip_specific_setup(octeon_dev)) { dev_err(&octeon_dev->pci_dev->dev, "Chip specific setup failed\n"); @@ -4505,9 +4525,6 @@ static int octeon_device_init(struct octeon_device *octeon_dev) if (octeon_setup_instr_queues(octeon_dev)) { dev_err(&octeon_dev->pci_dev->dev, "instruction queue initialization failed\n"); - /* On error, release any previously allocated queues */ - for (j = 0; j < octeon_dev->num_iqs; j++) - octeon_delete_instr_queue(octeon_dev, j); return 1; } atomic_set(&octeon_dev->status, OCT_DEV_INSTR_QUEUE_INIT_DONE); @@ -4523,9 +4540,6 @@ static int octeon_device_init(struct octeon_device *octeon_dev) if (octeon_setup_output_queues(octeon_dev)) { dev_err(&octeon_dev->pci_dev->dev, "Output queue initialization failed\n"); - /* Release any previously allocated queues */ - for (j = 0; j < octeon_dev->num_oqs; j++) - octeon_delete_droq(octeon_dev, j); return 1; } @@ -4542,6 +4556,7 @@ static int octeon_device_init(struct octeon_device *octeon_dev) dev_err(&octeon_dev->pci_dev->dev, "OCTEON: ioq vector allocation failed\n"); return 1; } + atomic_set(&octeon_dev->status, OCT_DEV_MSIX_ALLOC_VECTOR_DONE); } else { /* The input and output queue registers were setup earlier (the @@ -4569,6 +4584,8 @@ static int octeon_device_init(struct octeon_device *octeon_dev) /* Enable Octeon device interrupts */ octeon_dev->fn_list.enable_interrupt(octeon_dev, OCTEON_ALL_INTR); + atomic_set(&octeon_dev->status, OCT_DEV_INTR_SET_DONE); + /* Enable the input and output queues for this Octeon device */ ret = octeon_dev->fn_list.enable_io_queues(octeon_dev); if (ret) { diff --git a/drivers/net/ethernet/cavium/liquidio/octeon_device.c b/drivers/net/ethernet/cavium/liquidio/octeon_device.c index 7f532fdf7113..295e2caf7130 100644 --- a/drivers/net/ethernet/cavium/liquidio/octeon_device.c +++ b/drivers/net/ethernet/cavium/liquidio/octeon_device.c @@ -822,6 +822,7 @@ int octeon_setup_instr_queues(struct octeon_device *oct) if (octeon_init_instr_queue(oct, txpciq, num_descs)) { /* prevent memory leak */ vfree(oct->instr_queue[0]); + oct->instr_queue[0] = NULL; return 1; } @@ -854,8 +855,11 @@ int octeon_setup_output_queues(struct octeon_device *oct) if (!oct->droq[0]) return 1; - if (octeon_init_droq(oct, oq_no, num_descs, desc_size, NULL)) + if (octeon_init_droq(oct, oq_no, num_descs, desc_size, NULL)) { + vfree(oct->droq[oq_no]); + oct->droq[oq_no] = NULL; return 1; + } oct->num_oqs++; return 0; diff --git a/drivers/net/ethernet/cavium/liquidio/octeon_device.h b/drivers/net/ethernet/cavium/liquidio/octeon_device.h index 70a0d98550dc..6c18baa8c306 100644 --- a/drivers/net/ethernet/cavium/liquidio/octeon_device.h +++ b/drivers/net/ethernet/cavium/liquidio/octeon_device.h @@ -72,20 +72,23 @@ enum octeon_pci_swap_mode { * as it is initialized. */ #define OCT_DEV_BEGIN_STATE 0x0 -#define OCT_DEV_PCI_MAP_DONE 0x1 -#define OCT_DEV_DISPATCH_INIT_DONE 0x2 -#define OCT_DEV_INSTR_QUEUE_INIT_DONE 0x3 -#define OCT_DEV_SC_BUFF_POOL_INIT_DONE 0x4 -#define OCT_DEV_RESP_LIST_INIT_DONE 0x5 -#define OCT_DEV_DROQ_INIT_DONE 0x6 +#define OCT_DEV_PCI_ENABLE_DONE 0x1 +#define OCT_DEV_PCI_MAP_DONE 0x2 +#define OCT_DEV_DISPATCH_INIT_DONE 0x3 +#define OCT_DEV_INSTR_QUEUE_INIT_DONE 0x4 +#define OCT_DEV_SC_BUFF_POOL_INIT_DONE 0x5 +#define OCT_DEV_RESP_LIST_INIT_DONE 0x6 +#define OCT_DEV_DROQ_INIT_DONE 0x7 #define OCT_DEV_MBOX_SETUP_DONE 0x8 -#define OCT_DEV_IO_QUEUES_DONE 0x9 -#define OCT_DEV_CONSOLE_INIT_DONE 0xa -#define OCT_DEV_HOST_OK 0xb -#define OCT_DEV_CORE_OK 0xc -#define OCT_DEV_RUNNING 0xd -#define OCT_DEV_IN_RESET 0xe -#define OCT_DEV_STATE_INVALID 0xf +#define OCT_DEV_MSIX_ALLOC_VECTOR_DONE 0x9 +#define OCT_DEV_INTR_SET_DONE 0xa +#define OCT_DEV_IO_QUEUES_DONE 0xb +#define OCT_DEV_CONSOLE_INIT_DONE 0xc +#define OCT_DEV_HOST_OK 0xd +#define OCT_DEV_CORE_OK 0xe +#define OCT_DEV_RUNNING 0xf +#define OCT_DEV_IN_RESET 0x10 +#define OCT_DEV_STATE_INVALID 0x11 #define OCT_DEV_STATES OCT_DEV_STATE_INVALID diff --git a/drivers/net/ethernet/cavium/liquidio/octeon_droq.c b/drivers/net/ethernet/cavium/liquidio/octeon_droq.c index f60e5320daf4..886987f3a1e3 100644 --- a/drivers/net/ethernet/cavium/liquidio/octeon_droq.c +++ b/drivers/net/ethernet/cavium/liquidio/octeon_droq.c @@ -988,7 +988,8 @@ int octeon_create_droq(struct octeon_device *oct, if (!droq) droq = vmalloc(sizeof(*droq)); if (!droq) - goto create_droq_fail; + return -1; + memset(droq, 0, sizeof(struct octeon_droq)); /*Disable the pkt o/p for this Q */ @@ -996,7 +997,11 @@ int octeon_create_droq(struct octeon_device *oct, oct->droq[q_no] = droq; /* Initialize the Droq */ - octeon_init_droq(oct, q_no, num_descs, desc_size, app_ctx); + if (octeon_init_droq(oct, q_no, num_descs, desc_size, app_ctx)) { + vfree(oct->droq[q_no]); + oct->droq[q_no] = NULL; + return -1; + } oct->num_oqs++; @@ -1009,8 +1014,4 @@ int octeon_create_droq(struct octeon_device *oct, * the same time. */ return 0; - -create_droq_fail: - octeon_delete_droq(oct, q_no); - return -ENOMEM; } diff --git a/drivers/net/ethernet/cavium/liquidio/octeon_main.h b/drivers/net/ethernet/cavium/liquidio/octeon_main.h index 3cddf285c2b4..3afa61ee3223 100644 --- a/drivers/net/ethernet/cavium/liquidio/octeon_main.h +++ b/drivers/net/ethernet/cavium/liquidio/octeon_main.h @@ -116,7 +116,7 @@ static inline int octeon_map_pci_barx(struct octeon_device *oct, mapped_len = oct->mmio[baridx].len; if (!mapped_len) - return 1; + goto err_release_region; if (max_map_len && (mapped_len > max_map_len)) mapped_len = max_map_len; @@ -132,11 +132,15 @@ static inline int octeon_map_pci_barx(struct octeon_device *oct, if (!oct->mmio[baridx].hw_addr) { dev_err(&oct->pci_dev->dev, "error ioremap for bar %d\n", baridx); - return 1; + goto err_release_region; } oct->mmio[baridx].done = 1; return 0; + +err_release_region: + pci_release_region(oct->pci_dev, baridx * 2); + return 1; } static inline void * diff --git a/drivers/net/ethernet/cavium/liquidio/request_manager.c b/drivers/net/ethernet/cavium/liquidio/request_manager.c index 90866bb50033..a73560c93901 100644 --- a/drivers/net/ethernet/cavium/liquidio/request_manager.c +++ b/drivers/net/ethernet/cavium/liquidio/request_manager.c @@ -157,6 +157,8 @@ int octeon_init_instr_queue(struct octeon_device *oct, WQ_MEM_RECLAIM, 0); if (!oct->check_db_wq[iq_no].wq) { + vfree(iq->request_list); + iq->request_list = NULL; lio_dma_free(oct, q_size, iq->base_addr, iq->base_addr_dma); dev_err(&oct->pci_dev->dev, "check db wq create failed for iq %d\n", iq_no); @@ -749,8 +751,10 @@ int octeon_setup_sc_buffer_pool(struct octeon_device *oct) lio_dma_alloc(oct, SOFT_COMMAND_BUFFER_SIZE, (dma_addr_t *)&dma_addr); - if (!sc) + if (!sc) { + octeon_free_sc_buffer_pool(oct); return 1; + } sc->dma_addr = dma_addr; sc->size = SOFT_COMMAND_BUFFER_SIZE; |