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Message-ID: <1478208918-8330-7-git-send-email-rvatsavayi@caviumnetworks.com>
Date: Thu, 3 Nov 2016 14:35:15 -0700
From: Raghu Vatsavayi <rvatsavayi@...iumnetworks.com>
To: <davem@...emloft.net>
CC: <netdev@...r.kernel.org>,
Raghu Vatsavayi <rvatsavayi@...iumnetworks.com>,
Raghu Vatsavayi <raghu.vatsavayi@...iumnetworks.com>,
Derek Chickles <derek.chickles@...iumnetworks.com>,
Satanand Burla <satananda.burla@...iumnetworks.com>,
Felix Manlunas <felix.manlunas@...iumnetworks.com>
Subject: [PATCH net-next V4 6/9] liquidio CN23XX: device states
Cleaned up resource leaks during destroy resources by
introducing more device states.
Signed-off-by: Raghu Vatsavayi <raghu.vatsavayi@...iumnetworks.com>
Signed-off-by: Derek Chickles <derek.chickles@...iumnetworks.com>
Signed-off-by: Satanand Burla <satananda.burla@...iumnetworks.com>
Signed-off-by: Felix Manlunas <felix.manlunas@...iumnetworks.com>
---
drivers/net/ethernet/cavium/liquidio/lio_main.c | 33 ++++++++++++++++------
.../net/ethernet/cavium/liquidio/octeon_device.c | 6 +++-
.../net/ethernet/cavium/liquidio/octeon_device.h | 29 ++++++++++---------
drivers/net/ethernet/cavium/liquidio/octeon_droq.c | 13 +++++----
drivers/net/ethernet/cavium/liquidio/octeon_main.h | 8 ++++--
.../net/ethernet/cavium/liquidio/request_manager.c | 6 +++-
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 b297dae..10b7e9b 100644
--- a/drivers/net/ethernet/cavium/liquidio/lio_main.c
+++ b/drivers/net/ethernet/cavium/liquidio/lio_main.c
@@ -766,6 +766,7 @@ static void delete_glists(struct lio *lio)
}
kfree((void *)lio->glist);
+ kfree((void *)lio->glist_lock);
}
/**
@@ -1325,6 +1326,7 @@ static int liquidio_watchdog(void *param)
complete(&first_stage);
if (octeon_device_init(oct_dev)) {
+ complete(&hs->init);
liquidio_remove(pdev);
return -ENOMEM;
}
@@ -1349,7 +1351,15 @@ static int liquidio_watchdog(void *param)
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;
+ }
}
}
@@ -1413,6 +1423,8 @@ 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);
@@ -1439,6 +1451,8 @@ 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);
@@ -1502,10 +1516,13 @@ 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) */
@@ -1775,6 +1792,7 @@ 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;
}
@@ -4429,6 +4447,8 @@ 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");
@@ -4500,9 +4520,6 @@ 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);
@@ -4518,9 +4535,6 @@ 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;
}
@@ -4537,6 +4551,7 @@ 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
@@ -4564,6 +4579,8 @@ 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 7f532fd..295e2ca 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 70a0d98..6c18baa 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 f60e532..886987f 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 3cddf28..3afa61e 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 90866bb..a73560c 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;
--
1.8.3.1
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