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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/avf/device.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/avf/device.c')
-rw-r--r--src/plugins/avf/device.c103
1 files changed, 59 insertions, 44 deletions
diff --git a/src/plugins/avf/device.c b/src/plugins/avf/device.c
index 914c32cab4b..713953fe4c6 100644
--- a/src/plugins/avf/device.c
+++ b/src/plugins/avf/device.c
@@ -215,18 +215,23 @@ avf_cmd_rx_ctl_reg_write (vlib_main_t * vm, avf_device_t * ad, u32 reg,
clib_error_t *
avf_rxq_init (vlib_main_t * vm, avf_device_t * ad, u16 qid, u16 rxq_size)
{
- avf_main_t *am = &avf_main;
+ clib_error_t *err;
avf_rxq_t *rxq;
- clib_error_t *error = 0;
u32 n_alloc, i;
vec_validate_aligned (ad->rxqs, qid, CLIB_CACHE_LINE_BYTES);
rxq = vec_elt_at_index (ad->rxqs, qid);
rxq->size = rxq_size;
rxq->next = 0;
- rxq->descs = vlib_physmem_alloc_aligned (vm, am->physmem_region, &error,
- rxq->size * sizeof (avf_rx_desc_t),
+ rxq->descs = vlib_physmem_alloc_aligned (vm, rxq->size *
+ sizeof (avf_rx_desc_t),
2 * CLIB_CACHE_LINE_BYTES);
+ if (rxq->descs == 0)
+ return vlib_physmem_last_error (vm);
+
+ if ((err = vlib_pci_map_dma (vm, ad->pci_dev_handle, (void *) rxq->descs)))
+ return err;
+
clib_memset ((void *) rxq->descs, 0, rxq->size * sizeof (avf_rx_desc_t));
vec_validate_aligned (rxq->bufs, rxq->size, CLIB_CACHE_LINE_BYTES);
rxq->qrx_tail = ad->bar0 + AVF_QRX_TAIL (qid);
@@ -241,7 +246,7 @@ avf_rxq_init (vlib_main_t * vm, avf_device_t * ad, u16 qid, u16 rxq_size)
for (i = 0; i < n_alloc; i++)
{
vlib_buffer_t *b = vlib_get_buffer (vm, rxq->bufs[i]);
- if (ad->flags & AVF_DEVICE_F_IOVA)
+ if (ad->flags & AVF_DEVICE_F_VA_DMA)
d->qword[0] = vlib_buffer_get_va (b);
else
d->qword[0] = vlib_buffer_get_pa (vm, b);
@@ -255,9 +260,8 @@ avf_rxq_init (vlib_main_t * vm, avf_device_t * ad, u16 qid, u16 rxq_size)
clib_error_t *
avf_txq_init (vlib_main_t * vm, avf_device_t * ad, u16 qid, u16 txq_size)
{
- avf_main_t *am = &avf_main;
+ clib_error_t *err;
avf_txq_t *txq;
- clib_error_t *error = 0;
if (qid >= ad->num_queue_pairs)
{
@@ -273,9 +277,15 @@ avf_txq_init (vlib_main_t * vm, avf_device_t * ad, u16 qid, u16 txq_size)
txq = vec_elt_at_index (ad->txqs, qid);
txq->size = txq_size;
txq->next = 0;
- txq->descs = vlib_physmem_alloc_aligned (vm, am->physmem_region, &error,
- txq->size * sizeof (avf_tx_desc_t),
+ txq->descs = vlib_physmem_alloc_aligned (vm, txq->size *
+ sizeof (avf_tx_desc_t),
2 * CLIB_CACHE_LINE_BYTES);
+ if (txq->descs == 0)
+ return vlib_physmem_last_error (vm);
+
+ if ((err = vlib_pci_map_dma (vm, ad->pci_dev_handle, (void *) txq->descs)))
+ return err;
+
vec_validate_aligned (txq->bufs, txq->size, CLIB_CACHE_LINE_BYTES);
txq->qtx_tail = ad->bar0 + AVF_QTX_TAIL (qid);
@@ -305,10 +315,8 @@ avf_arq_slot_init (avf_device_t * ad, u16 slot)
static inline uword
avf_dma_addr (vlib_main_t * vm, avf_device_t * ad, void *p)
{
- avf_main_t *am = &avf_main;
- return (ad->flags & AVF_DEVICE_F_IOVA) ?
- pointer_to_uword (p) :
- vlib_physmem_virtual_to_physical (vm, am->physmem_region, p);
+ return (ad->flags & AVF_DEVICE_F_VA_DMA) ?
+ pointer_to_uword (p) : vlib_physmem_get_pa (vm, p);
}
static void
@@ -1126,16 +1134,16 @@ avf_delete_if (vlib_main_t * vm, avf_device_t * ad)
vlib_pci_device_close (vm, ad->pci_dev_handle);
- vlib_physmem_free (vm, am->physmem_region, ad->atq);
- vlib_physmem_free (vm, am->physmem_region, ad->arq);
- vlib_physmem_free (vm, am->physmem_region, ad->atq_bufs);
- vlib_physmem_free (vm, am->physmem_region, ad->arq_bufs);
+ vlib_physmem_free (vm, ad->atq);
+ vlib_physmem_free (vm, ad->arq);
+ vlib_physmem_free (vm, ad->atq_bufs);
+ vlib_physmem_free (vm, ad->arq_bufs);
/* *INDENT-OFF* */
vec_foreach_index (i, ad->rxqs)
{
avf_rxq_t *rxq = vec_elt_at_index (ad->rxqs, i);
- vlib_physmem_free (vm, am->physmem_region, (void *) rxq->descs);
+ vlib_physmem_free (vm, (void *) rxq->descs);
if (rxq->n_enqueued)
vlib_buffer_free_from_ring (vm, rxq->bufs, rxq->next, rxq->size,
rxq->n_enqueued);
@@ -1148,7 +1156,7 @@ avf_delete_if (vlib_main_t * vm, avf_device_t * ad)
vec_foreach_index (i, ad->txqs)
{
avf_txq_t *txq = vec_elt_at_index (ad->txqs, i);
- vlib_physmem_free (vm, am->physmem_region, (void *) txq->descs);
+ vlib_physmem_free (vm, (void *) txq->descs);
if (txq->n_enqueued)
{
u16 first = (txq->next - txq->n_enqueued) & (txq->size -1);
@@ -1226,44 +1234,51 @@ avf_create_if (vlib_main_t * vm, avf_create_if_args_t * args)
if ((error = vlib_pci_enable_msix_irq (vm, h, 0, 2)))
goto error;
- if (am->physmem_region_alloc == 0)
+ if (!(ad->atq = vlib_physmem_alloc (vm, sizeof (avf_aq_desc_t) *
+ AVF_MBOX_LEN)))
{
- u32 flags = VLIB_PHYSMEM_F_INIT_MHEAP | VLIB_PHYSMEM_F_HUGETLB;
- error = vlib_physmem_region_alloc (vm, "avf descriptors", 4 << 20, 0,
- flags, &am->physmem_region);
- if (error)
- goto error;
- am->physmem_region_alloc = 1;
+ error = vlib_physmem_last_error (vm);
+ goto error;
}
- ad->atq = vlib_physmem_alloc_aligned (vm, am->physmem_region, &error,
- sizeof (avf_aq_desc_t) * AVF_MBOX_LEN,
- 64);
- if (error)
+
+ if ((error = vlib_pci_map_dma (vm, h, ad->atq)))
goto error;
- ad->arq = vlib_physmem_alloc_aligned (vm, am->physmem_region, &error,
- sizeof (avf_aq_desc_t) * AVF_MBOX_LEN,
- 64);
- if (error)
+ if (!(ad->arq = vlib_physmem_alloc (vm, sizeof (avf_aq_desc_t) *
+ AVF_MBOX_LEN)))
+ {
+ error = vlib_physmem_last_error (vm);
+ goto error;
+ }
+
+ if ((error = vlib_pci_map_dma (vm, h, ad->arq)))
goto error;
- ad->atq_bufs = vlib_physmem_alloc_aligned (vm, am->physmem_region, &error,
- AVF_MBOX_BUF_SZ * AVF_MBOX_LEN,
- 64);
- if (error)
+ if (!(ad->atq_bufs = vlib_physmem_alloc (vm, AVF_MBOX_BUF_SZ *
+ AVF_MBOX_LEN)))
+ {
+ error = vlib_physmem_last_error (vm);
+ goto error;
+ }
+
+ if ((error = vlib_pci_map_dma (vm, h, ad->atq_bufs)))
goto error;
- ad->arq_bufs = vlib_physmem_alloc_aligned (vm, am->physmem_region, &error,
- AVF_MBOX_BUF_SZ * AVF_MBOX_LEN,
- 64);
- if (error)
+ if (!(ad->arq_bufs = vlib_physmem_alloc (vm, AVF_MBOX_BUF_SZ *
+ AVF_MBOX_LEN)))
+ {
+ error = vlib_physmem_last_error (vm);
+ goto error;
+ }
+
+ if ((error = vlib_pci_map_dma (vm, h, ad->arq_bufs)))
goto error;
if ((error = vlib_pci_intr_enable (vm, h)))
goto error;
- /* FIXME detect */
- ad->flags |= AVF_DEVICE_F_IOVA;
+ if (vlib_pci_supports_virtual_addr_dma (vm, h))
+ ad->flags |= AVF_DEVICE_F_VA_DMA;
if ((error = avf_device_init (vm, am, ad, args)))
goto error;