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authorDamjan Marion <damarion@cisco.com>2018-09-30 18:26:20 +0200
committerDamjan Marion <dmarion@me.com>2018-10-23 14:21:10 +0000
commit68b4da67deb2e8ca224bb5abaeb9dbc7ae8e378c (patch)
treecd1ee2c463aefdb31c73665eafb876568054f49e /src/plugins/ixge/ixge.c
parentfc3b8b8ad08d2d4cc375149ecdc10c37d4a80940 (diff)
Numa-aware, growable physical memory allocator (pmalloc)
Change-Id: Ic4c46bc733afae8bf0d8146623ed15633928de30 Signed-off-by: Damjan Marion <damarion@cisco.com>
Diffstat (limited to 'src/plugins/ixge/ixge.c')
-rw-r--r--src/plugins/ixge/ixge.c35
1 files changed, 11 insertions, 24 deletions
diff --git a/src/plugins/ixge/ixge.c b/src/plugins/ixge/ixge.c
index 3c4a5b4bbfc..5dc22bed3a5 100644
--- a/src/plugins/ixge/ixge.c
+++ b/src/plugins/ixge/ixge.c
@@ -2488,13 +2488,11 @@ ixge_dma_init (ixge_device_t * xd, vlib_rx_or_tx_t rt, u32 queue_index)
round_pow2 (xm->n_descriptors[rt], xm->n_descriptors_per_cache_line);
dq->head_index = dq->tail_index = 0;
- dq->descriptors =
- vlib_physmem_alloc_aligned (vm, xm->physmem_region, &error,
- dq->n_descriptors *
- sizeof (dq->descriptors[0]),
- 128 /* per chip spec */ );
- if (error)
- return error;
+ dq->descriptors = vlib_physmem_alloc_aligned (vm, dq->n_descriptors *
+ sizeof (dq->descriptors[0]),
+ 128 /* per chip spec */ );
+ if (!dq->descriptors)
+ return vlib_physmem_last_error (vm);
clib_memset (dq->descriptors, 0,
dq->n_descriptors * sizeof (dq->descriptors[0]));
@@ -2518,10 +2516,10 @@ ixge_dma_init (ixge_device_t * xd, vlib_rx_or_tx_t rt, u32 queue_index)
{
u32 i;
- dq->tx.head_index_write_back = vlib_physmem_alloc (vm,
- xm->physmem_region,
- &error,
- CLIB_CACHE_LINE_BYTES);
+ dq->tx.head_index_write_back =
+ vlib_physmem_alloc (vm, CLIB_CACHE_LINE_BYTES);
+ if (!dq->tx.head_index_write_back)
+ return vlib_physmem_last_error (vm);
for (i = 0; i < dq->n_descriptors; i++)
dq->descriptors[i].tx = xm->tx_descriptor_template;
@@ -2533,9 +2531,7 @@ ixge_dma_init (ixge_device_t * xd, vlib_rx_or_tx_t rt, u32 queue_index)
ixge_dma_regs_t *dr = get_dma_regs (xd, rt, queue_index);
u64 a;
- a =
- vlib_physmem_virtual_to_physical (vm, xm->physmem_region,
- dq->descriptors);
+ a = vlib_physmem_get_pa (vm, dq->descriptors);
dr->descriptor_address[0] = a & 0xFFFFFFFF;
dr->descriptor_address[1] = a >> (u64) 32;
dr->n_descriptor_bytes = dq->n_descriptors * sizeof (dq->descriptors[0]);
@@ -2560,8 +2556,7 @@ ixge_dma_init (ixge_device_t * xd, vlib_rx_or_tx_t rt, u32 queue_index)
/* Make sure its initialized before hardware can get to it. */
dq->tx.head_index_write_back[0] = dq->head_index;
- a = vlib_physmem_virtual_to_physical (vm, xm->physmem_region,
- dq->tx.head_index_write_back);
+ a = vlib_physmem_get_pa (vm, dq->tx.head_index_write_back);
dr->tx.head_index_write_back_address[0] = /* enable bit */ 1 | a;
dr->tx.head_index_write_back_address[1] = (u64) a >> (u64) 32;
}
@@ -2848,14 +2843,6 @@ ixge_pci_init (vlib_main_t * vm, vlib_pci_dev_handle_t h)
vlib_pci_addr_t *addr = vlib_pci_get_addr (vm, h);
vlib_pci_device_info_t *d = vlib_pci_get_device_info (vm, addr, 0);
- /* Allocate physmem region for DMA buffers */
- if (xm->physmem_region_allocated == 0)
- {
- error = vlib_physmem_region_alloc (vm, "ixge decriptors", 2 << 20, 0,
- VLIB_PHYSMEM_F_INIT_MHEAP,
- &xm->physmem_region);
- xm->physmem_region_allocated = 1;
- }
if (error)
return error;