_(0, INITIALIZED, "initialized") \
_(1, ERROR, "error") \
_(2, ADMIN_UP, "admin-up") \
- _(3, IOVA, "iova") \
+ _(3, VA_DMA, "vaddr-dma") \
_(4, LINK_UP, "link-up") \
_(5, SHARED_TXQ_LOCK, "shared-txq-lock") \
_(6, ELOG, "elog")
avf_device_t *devices;
avf_per_thread_data_t *per_thread_data;
- vlib_physmem_region_index_t physmem_region;
- int physmem_region_alloc;
vlib_log_class_t log_class;
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);
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);
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)
{
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);
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
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);
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);
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;
#define AVF_INPUT_REFILL_TRESHOLD 32
static_always_inline void
avf_rxq_refill (vlib_main_t * vm, vlib_node_runtime_t * node, avf_rxq_t * rxq,
- int use_iova)
+ int use_va_dma)
{
u16 n_refill, mask, n_alloc, slot;
u32 s0, s1, s2, s3;
b[2] = vlib_get_buffer (vm, rxq->bufs[s2]);
b[3] = vlib_get_buffer (vm, rxq->bufs[s3]);
- if (use_iova)
+ if (use_va_dma)
{
d[0]->qword[0] = vlib_buffer_get_va (b[0]);
d[1]->qword[0] = vlib_buffer_get_va (b[1]);
s0 = slot;
d[0] = ((avf_rx_desc_t *) rxq->descs) + s0;
b[0] = vlib_get_buffer (vm, rxq->bufs[s0]);
- if (use_iova)
+ if (use_va_dma)
d[0]->qword[0] = vlib_buffer_get_va (b[0]);
else
d[0]->qword[0] = vlib_buffer_get_pa (vm, b[0]);
goto done;
/* refill rx ring */
- if (ad->flags & AVF_DEVICE_F_IOVA)
- avf_rxq_refill (vm, node, rxq, 1 /* use_iova */ );
+ if (ad->flags & AVF_DEVICE_F_VA_DMA)
+ avf_rxq_refill (vm, node, rxq, 1 /* use_va_dma */ );
else
- avf_rxq_refill (vm, node, rxq, 0 /* use_iova */ );
+ avf_rxq_refill (vm, node, rxq, 0 /* use_va_dma */ );
vlib_get_buffers (vm, buffer_indices, bufs, n_rxv);
n_rx_packets = n_rxv;
b2 = vlib_get_buffer (vm, bi2);
b3 = vlib_get_buffer (vm, bi3);
- if (ad->flags & AVF_DEVICE_F_IOVA)
+ if (ad->flags & AVF_DEVICE_F_VA_DMA)
{
d0->qword[0] = vlib_buffer_get_current_va (b0);
d1->qword[0] = vlib_buffer_get_current_va (b1);
txq->bufs[next] = bi0;
b0 = vlib_get_buffer (vm, bi0);
- if (ad->flags & AVF_DEVICE_F_IOVA)
+ if (ad->flags & AVF_DEVICE_F_VA_DMA)
d0->qword[0] = vlib_buffer_get_current_va (b0);
else
d0->qword[0] = vlib_buffer_get_current_pa (vm, b0);
clib_error_t *
dpdk_pool_create (vlib_main_t * vm, u8 * pool_name, u32 elt_size,
u32 num_elts, u32 pool_priv_size, u16 cache_size, u8 numa,
- struct rte_mempool **_mp, vlib_physmem_region_index_t * pri)
+ struct rte_mempool **_mp, u32 * map_index)
{
struct rte_mempool *mp;
enum rte_iova_mode iova_mode;
- vlib_physmem_region_t *pr;
dpdk_mempool_private_t priv;
+ vlib_physmem_map_t *pm;
clib_error_t *error = 0;
size_t min_chunk_size, align;
int map_dma = 1;
i32 ret;
uword i;
-
mp = rte_mempool_create_empty ((char *) pool_name, num_elts, elt_size,
512, pool_priv_size, numa, 0);
if (!mp)
size = rte_mempool_op_calc_mem_size_default (mp, num_elts, 21,
&min_chunk_size, &align);
- error = vlib_physmem_region_alloc (vm, (char *) pool_name, size, numa,
- VLIB_PHYSMEM_F_HUGETLB |
- VLIB_PHYSMEM_F_SHARED, pri);
- if (error)
+ if ((error = vlib_physmem_shared_map_create (vm, (char *) pool_name, size,
+ numa, map_index)))
{
rte_mempool_free (mp);
return error;
}
-
- pr = vlib_physmem_get_region (vm, pri[0]);
+ pm = vlib_physmem_get_map (vm, *map_index);
/* Call the mempool priv initializer */
priv.mbp_priv.mbuf_data_room_size = VLIB_BUFFER_PRE_DATA_SIZE +
map_dma = 0;
iova_mode = rte_eal_iova_mode ();
- for (i = 0; i < pr->n_pages; i++)
+ for (i = 0; i < pm->n_pages; i++)
{
- size_t page_sz = 1ull << pr->log2_page_size;
- char *va = ((char *) pr->mem) + i * page_sz;
+ size_t page_sz = 1ULL << pm->log2_page_size;
+ char *va = ((char *) pm->base) + i * page_sz;
uword pa = iova_mode == RTE_IOVA_VA ?
- pointer_to_uword (va) : pr->page_table[i];
+ pointer_to_uword (va) : pm->page_table[i];
ret = rte_mempool_populate_iova (mp, va, pa, page_sz, 0, 0);
if (ret < 0)
{
{
dpdk_main_t *dm = &dpdk_main;
struct rte_mempool *rmp;
- vlib_physmem_region_index_t pri;
clib_error_t *error = 0;
u8 *pool_name;
u32 elt_size, i;
+ u32 map_index;
vec_validate_aligned (dm->pktmbuf_pools, socket_id, CLIB_CACHE_LINE_BYTES);
VLIB_BUFFER_HDR_SIZE /* priv size */ +
VLIB_BUFFER_PRE_DATA_SIZE + VLIB_BUFFER_DATA_SIZE; /*data room size */
- error =
- dpdk_pool_create (vm, pool_name, elt_size, num_mbufs,
- sizeof (dpdk_mempool_private_t), 512, socket_id,
- &rmp, &pri);
+ error = dpdk_pool_create (vm, pool_name, elt_size, num_mbufs,
+ sizeof (dpdk_mempool_private_t), 512, socket_id,
+ &rmp, &map_index);
vec_free (pool_name);
rte_mempool_obj_iter (rmp, rte_pktmbuf_init, 0);
dpdk_mempool_private_t *privp = rte_mempool_get_priv (rmp);
- privp->buffer_pool_index = vlib_buffer_pool_create (vm, pri, 0);
+ privp->buffer_pool_index =
+ vlib_buffer_register_physmem_map (vm, map_index);
dm->pktmbuf_pools[socket_id] = rmp;
clib_error_t *dpdk_pool_create (vlib_main_t * vm, u8 * pool_name,
u32 elt_size, u32 num_elts,
u32 pool_priv_size, u16 cache_size, u8 numa,
- struct rte_mempool **_mp,
- vlib_physmem_region_index_t * pri);
+ struct rte_mempool **_mp, u32 * map_index);
clib_error_t *dpdk_buffer_pool_create (vlib_main_t * vm, unsigned num_mbufs,
unsigned socket_id);
struct rte_crypto_op_pool_private *priv;
struct rte_mempool *mp;
clib_error_t *error = NULL;
- vlib_physmem_region_index_t pri;
+ u32 map_index;
data = vec_elt_at_index (dcm->data, numa);
pool_name = format (0, "crypto_pool_numa%u%c", numa, 0);
- error =
- dpdk_pool_create (vm, pool_name, crypto_op_len (), conf->num_mbufs,
- pool_priv_size, 512, numa, &mp, &pri);
+ error = dpdk_pool_create (vm, pool_name, crypto_op_len (), conf->num_mbufs,
+ pool_priv_size, 512, numa, &mp, &map_index);
vec_free (pool_name);
u8 *pool_name;
struct rte_mempool *mp;
clib_error_t *error = NULL;
- vlib_physmem_region_index_t pri;
u32 elt_size;
+ u32 map_index;
data = vec_elt_at_index (dcm->data, numa);
elt_size = rte_cryptodev_sym_get_header_session_size ();
- error =
- dpdk_pool_create (vm, pool_name, elt_size, DPDK_CRYPTO_NB_SESS_OBJS,
- 0, 512, numa, &mp, &pri);
+ error = dpdk_pool_create (vm, pool_name, elt_size, DPDK_CRYPTO_NB_SESS_OBJS,
+ 0, 512, numa, &mp, &map_index);
vec_free (pool_name);
u8 *pool_name;
struct rte_mempool *mp;
clib_error_t *error = NULL;
- vlib_physmem_region_index_t pri;
u32 elt_size;
u8 numa = dev->numa;
+ u32 map_index;
data = vec_elt_at_index (dcm->data, numa);
elt_size = rte_cryptodev_sym_get_private_session_size (dev->id);
- error =
- dpdk_pool_create (vm, pool_name, elt_size, DPDK_CRYPTO_NB_SESS_OBJS,
- 0, 512, numa, &mp, &pri);
+ error = dpdk_pool_create (vm, pool_name, elt_size, DPDK_CRYPTO_NB_SESS_OBJS,
+ 0, 512, numa, &mp, &map_index);
vec_free (pool_name);
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]));
{
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;
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]);
/* 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;
}
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;
f64 time_last_stats_update;
- vlib_physmem_region_index_t physmem_region;
- int physmem_region_allocated;
} ixge_main_t;
extern ixge_main_t ixge_main;
/* *INDENT-OFF* */
vec_foreach (bp, buffer_main.buffer_pools)
{
- vlib_physmem_region_t *pr;
- pr = vlib_physmem_get_region (vm, bp->physmem_region);
+ vlib_physmem_map_t *pm;
+ pm = vlib_physmem_get_map (vm, bp->physmem_map_index);
vec_add2_aligned (mif->regions, r, 1, CLIB_CACHE_LINE_BYTES);
- r->fd = pr->fd;
- r->region_size = pr->size;
- r->shm = pr->mem;
+ r->fd = pm->fd;
+ r->region_size = pm->n_pages << pm->log2_page_size;
+ r->shm = pm->base;
r->is_external = 1;
}
/* *INDENT-ON* */
static clib_error_t *
vmxnet3_provision_driver_shared (vlib_main_t * vm, vmxnet3_device_t * vd)
{
- vmxnet3_main_t *vmxm = &vmxnet3_main;
vmxnet3_shared *shared;
vmxnet3_queues *q;
u64 shared_dma;
- clib_error_t *error;
u16 qid = 0, rid;
vmxnet3_rxq_t *rxq = vec_elt_at_index (vd->rxqs, qid);
vmxnet3_txq_t *txq = vec_elt_at_index (vd->txqs, qid);
- vd->dma = vlib_physmem_alloc_aligned (vm, vmxm->physmem_region, &error,
- sizeof (*vd->dma), 512);
- if (error)
- return error;
+ vd->dma = vlib_physmem_alloc_aligned (vm, sizeof (*vd->dma), 512);
+ if (vd->dma == 0)
+ return vlib_physmem_last_error (vm);
clib_memset (vd->dma, 0, sizeof (*vd->dma));
static clib_error_t *
vmxnet3_rxq_init (vlib_main_t * vm, vmxnet3_device_t * vd, u16 qid, u16 qsz)
{
- vmxnet3_main_t *vmxm = &vmxnet3_main;
vmxnet3_rxq_t *rxq;
- clib_error_t *error;
u16 rid;
vec_validate_aligned (vd->rxqs, qid, CLIB_CACHE_LINE_BYTES);
rxq->size = qsz;
for (rid = 0; rid < VMXNET3_RX_RING_SIZE; rid++)
{
- rxq->rx_desc[rid] =
- vlib_physmem_alloc_aligned (vm, vmxm->physmem_region,
- &error, qsz * sizeof (*rxq->rx_desc[rid]),
- 512);
- if (error)
- return error;
+ rxq->rx_desc[rid] = vlib_physmem_alloc_aligned
+ (vm, qsz * sizeof (*rxq->rx_desc[rid]), 512);
+
+ if (rxq->rx_desc[rid] == 0)
+ return vlib_physmem_last_error (vm);
+
clib_memset (rxq->rx_desc[rid], 0, qsz * sizeof (*rxq->rx_desc[rid]));
}
- rxq->rx_comp = vlib_physmem_alloc_aligned (vm, vmxm->physmem_region, &error,
- qsz * sizeof (*rxq->rx_comp),
+ rxq->rx_comp = vlib_physmem_alloc_aligned (vm, qsz * sizeof (*rxq->rx_comp),
512);
- if (error)
- return error;
+ if (rxq->rx_comp == 0)
+ return vlib_physmem_last_error (vm);
+
clib_memset (rxq->rx_comp, 0, qsz * sizeof (*rxq->rx_comp));
for (rid = 0; rid < VMXNET3_RX_RING_SIZE; rid++)
{
static clib_error_t *
vmxnet3_txq_init (vlib_main_t * vm, vmxnet3_device_t * vd, u16 qid, u16 qsz)
{
- vmxnet3_main_t *vmxm = &vmxnet3_main;
vmxnet3_txq_t *txq;
- clib_error_t *error;
if (qid >= vd->num_tx_queues)
{
txq = vec_elt_at_index (vd->txqs, qid);
clib_memset (txq, 0, sizeof (*txq));
txq->size = qsz;
- txq->tx_desc = vlib_physmem_alloc_aligned (vm, vmxm->physmem_region, &error,
- qsz * sizeof (*txq->tx_desc),
+ txq->tx_desc = vlib_physmem_alloc_aligned (vm, qsz * sizeof (*txq->tx_desc),
512);
- if (error)
- return error;
- clib_memset (txq->tx_desc, 0, qsz * sizeof (*txq->tx_desc));
- txq->tx_comp = vlib_physmem_alloc_aligned (vm, vmxm->physmem_region, &error,
- qsz * sizeof (*txq->tx_comp),
+ if (txq->tx_desc == 0)
+ return vlib_physmem_last_error (vm);
+
+ memset (txq->tx_desc, 0, qsz * sizeof (*txq->tx_desc));
+ txq->tx_comp = vlib_physmem_alloc_aligned (vm, qsz * sizeof (*txq->tx_comp),
512);
- if (error)
- return error;
+ if (txq->tx_comp == 0)
+ return vlib_physmem_last_error (vm);
+
clib_memset (txq->tx_comp, 0, qsz * sizeof (*txq->tx_comp));
vec_validate_aligned (txq->tx_ring.bufs, txq->size, CLIB_CACHE_LINE_BYTES);
txq->tx_ring.gen = VMXNET3_TXF_GEN;
{
clib_error_t *error = 0;
u32 ret, i;
- vmxnet3_main_t *vmxm = &vmxnet3_main;
vlib_thread_main_t *tm = vlib_get_thread_main ();
vd->num_tx_queues = 1;
ret = vmxnet3_reg_read (vd, 1, VMXNET3_REG_MACH);
clib_memcpy (vd->mac_addr + 4, &ret, 2);
- if (vmxm->physmem_region_alloc == 0)
- {
- u32 flags = VLIB_PHYSMEM_F_INIT_MHEAP | VLIB_PHYSMEM_F_HUGETLB;
- error =
- vlib_physmem_region_alloc (vm, "vmxnet3 descriptors", 4 << 20, 0,
- flags, &vmxm->physmem_region);
- if (error)
- return error;
- vmxm->physmem_region_alloc = 1;
- }
-
error = vmxnet3_rxq_init (vm, vd, 0, args->rxq_size);
if (error)
return error;
vlib_buffer_free_from_ring (vm, ring->bufs, desc_idx, rxq->size,
ring->fill);
vec_free (ring->bufs);
- vlib_physmem_free (vm, vmxm->physmem_region, rxq->rx_desc[rid]);
+ vlib_physmem_free (vm, rxq->rx_desc[rid]);
}
- vlib_physmem_free (vm, vmxm->physmem_region, rxq->rx_comp);
+ vlib_physmem_free (vm, rxq->rx_comp);
}
/* *INDENT-ON* */
vec_free (vd->rxqs);
}
clib_spinlock_free (&txq->lock);
vec_free (txq->tx_ring.bufs);
- vlib_physmem_free (vm, vmxm->physmem_region, txq->tx_desc);
- vlib_physmem_free (vm, vmxm->physmem_region, txq->tx_comp);
+ vlib_physmem_free (vm, txq->tx_desc);
+ vlib_physmem_free (vm, txq->tx_comp);
}
/* *INDENT-ON* */
vec_free (vd->txqs);
- vlib_physmem_free (vm, vmxm->physmem_region, vd->dma);
+ vlib_physmem_free (vm, vd->dma);
clib_error_free (vd->error);
clib_memset (vd, 0, sizeof (*vd));
typedef struct
{
vmxnet3_device_t *devices;
- vlib_physmem_region_index_t physmem_region;
- u32 physmem_region_alloc;
u16 msg_id_base;
} vmxnet3_main_t;
static_always_inline uword
vmxnet3_dma_addr (vlib_main_t * vm, vmxnet3_device_t * vd, void *p)
{
- vmxnet3_main_t *vmxm = &vmxnet3_main;
-
return (vd->flags & VMXNET3_DEVICE_F_IOVA) ? pointer_to_uword (p) :
- vlib_physmem_virtual_to_physical (vm, vmxm->physmem_region, p);
+ vlib_physmem_get_pa (vm, p);
}
static_always_inline void
i2c.c
init.c
linux/pci.c
- linux/physmem.c
linux/vfio.c
log.c
main.c
node_cli.c
node_format.c
pci/pci.c
+ physmem.c
threads.c
threads_cli.c
trace.c
}
static_always_inline void *
-vlib_buffer_pool_get_buffer (vlib_buffer_pool_t * bp)
+vlib_buffer_pool_get_buffer (vlib_main_t * vm, vlib_buffer_pool_t * bp)
{
- uword slot, page, addr;
-
- if (PREDICT_FALSE (bp->n_elts == bp->n_used))
- {
- clib_spinlock_unlock (&bp->lock);
- return 0;
- }
- slot = bp->next_clear;
- bp->bitmap = clib_bitmap_set (bp->bitmap, slot, 1);
- bp->next_clear = clib_bitmap_next_clear (bp->bitmap, slot + 1);
- bp->n_used++;
-
- page = slot / bp->buffers_per_page;
- slot -= page * bp->buffers_per_page;
-
- addr = bp->start + (page << bp->log2_page_size) + slot * bp->buffer_size;
-
- return uword_to_pointer (addr, void *);
+ return vlib_physmem_alloc_from_map (vm, bp->physmem_map_index,
+ bp->buffer_size, CLIB_CACHE_LINE_BYTES);
}
/* Make sure free list has at least given number of free buffers. */
clib_spinlock_lock (&bp->lock);
while (n_alloc < n)
{
- if ((b = vlib_buffer_pool_get_buffer (bp)) == 0)
+ if ((b = vlib_buffer_pool_get_buffer (vm, bp)) == 0)
goto done;
n_alloc += 1;
}
u8
-vlib_buffer_pool_create (vlib_main_t * vm, vlib_physmem_region_index_t pri,
- u16 buffer_size)
+vlib_buffer_register_physmem_map (vlib_main_t * vm, u32 physmem_map_index)
{
vlib_buffer_main_t *bm = &buffer_main;
- vlib_physmem_region_t *pr = vlib_physmem_get_region (vm, pri);
vlib_buffer_pool_t *p;
- uword start = pointer_to_uword (pr->mem);
- uword size = pr->size;
+ vlib_physmem_map_t *m = vlib_physmem_get_map (vm, physmem_map_index);
+ uword start = pointer_to_uword (m->base);
+ uword size = m->n_pages << m->log2_page_size;
if (bm->buffer_mem_size == 0)
{
vec_add2 (bm->buffer_pools, p, 1);
p->start = start;
p->size = size;
- p->physmem_region = pri;
-
- if (buffer_size == 0)
- goto done;
+ p->physmem_map_index = physmem_map_index;
- p->log2_page_size = pr->log2_page_size;
- p->buffer_size = buffer_size;
- p->buffers_per_page = (1ull << pr->log2_page_size) / p->buffer_size;
- p->n_elts = p->buffers_per_page * pr->n_pages;
- p->n_used = 0;
- clib_spinlock_init (&p->lock);
-done:
ASSERT (p - bm->buffer_pools < 256);
return p - bm->buffer_pools;
}
vlib_buffer_main_init (struct vlib_main_t * vm)
{
vlib_buffer_main_t *bm = &buffer_main;
- vlib_physmem_region_index_t pri;
clib_error_t *error;
+ u32 physmem_map_index;
+ u8 pool_index;
if (vlib_buffer_callbacks)
{
&vlib_buffer_delete_free_list_internal;
clib_spinlock_init (&bm->buffer_known_hash_lockp);
- /* allocate default region */
- error = vlib_physmem_region_alloc (vm, "buffers",
- vlib_buffer_physmem_sz, 0,
- VLIB_PHYSMEM_F_SHARED |
- VLIB_PHYSMEM_F_HUGETLB, &pri);
+ if ((error = vlib_physmem_shared_map_create (vm, "buffers",
+ vlib_buffer_physmem_sz, 1,
+ &physmem_map_index)))
+ return error;
- if (error == 0)
- goto done;
+ pool_index = vlib_buffer_register_physmem_map (vm, physmem_map_index);
+ vlib_buffer_pool_t *bp = vlib_buffer_pool_get (pool_index);
+ clib_spinlock_init (&bp->lock);
+ bp->buffer_size = VLIB_BUFFER_DEFAULT_FREE_LIST_BYTES +
+ sizeof (vlib_buffer_t);
- clib_error_free (error);
-
- error = vlib_physmem_region_alloc (vm, "buffers",
- vlib_buffer_physmem_sz, 0,
- VLIB_PHYSMEM_F_SHARED, &pri);
-done:
- if (error == 0)
- vlib_buffer_pool_create (vm, pri, sizeof (vlib_buffer_t) +
- VLIB_BUFFER_DEFAULT_FREE_LIST_BYTES);
- return error;
+ return 0;
}
static clib_error_t *
uword start;
uword size;
uword log2_page_size;
- vlib_physmem_region_index_t physmem_region;
-
+ u32 physmem_map_index;
+ u32 buffer_size;
u32 *buffers;
-
- u16 buffer_size;
- uword buffers_per_page;
- uword n_elts;
- uword n_used;
- uword next_clear;
- uword *bitmap;
clib_spinlock_t lock;
} vlib_buffer_pool_t;
return vec_elt_at_index (bm->buffer_pools, buffer_pool_index);
}
-u8 vlib_buffer_pool_create (struct vlib_main_t * vm,
- vlib_physmem_region_index_t region,
- u16 buffer_size);
+u8 vlib_buffer_register_physmem_map (struct vlib_main_t * vm,
+ u32 physmem_map_index);
clib_error_t *vlib_buffer_main_init (struct vlib_main_t *vm);
always_inline uword
vlib_buffer_get_pa (vlib_main_t * vm, vlib_buffer_t * b)
{
- vlib_buffer_main_t *bm = &buffer_main;
- vlib_buffer_pool_t *pool = vec_elt_at_index (bm->buffer_pools,
- b->buffer_pool_index);
- return vlib_physmem_virtual_to_physical (vm, pool->physmem_region, b->data);
+ return vlib_physmem_get_pa (vm, b->data);
}
always_inline uword
linux_pci_vfio_unmask_intx (vm, p);
}
+ if (p->supports_va_dma)
+ {
+ vlib_buffer_pool_t *bp;
+ /* *INDENT-OFF* */
+ vec_foreach (bp, buffer_main.buffer_pools)
+ {
+ u32 i;
+ vlib_physmem_map_t *pm;
+ pm = vlib_physmem_get_map (vm, bp->physmem_map_index);
+ for (i = 0; i < pm->n_pages; i++)
+ vfio_map_physmem_page (vm, pm->base + (i << pm->log2_page_size));
+ }
+ /* *INDENT-ON* */
+ }
+
if (r && r->init_function)
err = r->init_function (lpm->vlib_main, p->handle);
return (vlib_pci_map_region_int (vm, h, resource, addr, result));
}
+clib_error_t *
+vlib_pci_map_dma (vlib_main_t * vm, vlib_pci_dev_handle_t h, void *ptr)
+{
+ linux_pci_device_t *p = linux_pci_get_device (h);
+
+ if (!p->supports_va_dma)
+ return 0;
+
+ return vfio_map_physmem_page (vm, ptr);
+}
+
+int
+vlib_pci_supports_virtual_addr_dma (vlib_main_t * vm, vlib_pci_dev_handle_t h)
+{
+ linux_pci_device_t *p = linux_pci_get_device (h);
+
+ return p->supports_va_dma != 0;
+}
+
clib_error_t *
vlib_pci_device_open (vlib_main_t * vm, vlib_pci_addr_t * addr,
pci_device_id_t ids[], vlib_pci_dev_handle_t * handle)
+++ /dev/null
-/*
- * Copyright (c) 2015 Cisco and/or its affiliates.
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at:
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-/*
- * physmem.c: Unix physical memory
- *
- * Copyright (c) 2008 Eliot Dresselhaus
- *
- * Permission is hereby granted, free of charge, to any person obtaining
- * a copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, sublicense, and/or sell copies of the Software, and to
- * permit persons to whom the Software is furnished to do so, subject to
- * the following conditions:
- *
- * The above copyright notice and this permission notice shall be
- * included in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
- * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
- * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
- * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- */
-
-#include <unistd.h>
-#include <sys/types.h>
-#include <sys/mount.h>
-#include <sys/mman.h>
-#include <sys/fcntl.h>
-#include <sys/stat.h>
-#include <unistd.h>
-
-#include <vppinfra/linux/syscall.h>
-#include <vppinfra/linux/sysfs.h>
-#include <vlib/vlib.h>
-#include <vlib/physmem.h>
-#include <vlib/unix/unix.h>
-#include <vlib/pci/pci.h>
-#include <vlib/linux/vfio.h>
-
-static void *
-unix_physmem_alloc_aligned (vlib_main_t * vm, vlib_physmem_region_index_t idx,
- uword n_bytes, uword alignment)
-{
- vlib_physmem_region_t *pr = vlib_physmem_get_region (vm, idx);
- uword lo_offset, hi_offset;
- uword *to_free = 0;
-
- if (pr->heap == 0)
- return 0;
-
- /* IO memory is always at least cache aligned. */
- alignment = clib_max (alignment, CLIB_CACHE_LINE_BYTES);
-
- while (1)
- {
-#if USE_DLMALLOC == 0
-
- mheap_get_aligned (pr->heap, n_bytes,
- /* align */ alignment,
- /* align offset */ 0,
- &lo_offset);
-#else
- lo_offset = (uword) mspace_get_aligned (pr->heap, n_bytes,
- alignment, ~0ULL /* offset */ );
- if (lo_offset == 0)
- lo_offset = ~0ULL;
-#endif
-
- /* Allocation failed? */
- if (lo_offset == ~0)
- break;
-
- /* Make sure allocation does not span DMA physical chunk boundary. */
- hi_offset = lo_offset + n_bytes - 1;
-
- if (((pointer_to_uword (pr->heap) + lo_offset) >> pr->log2_page_size) ==
- ((pointer_to_uword (pr->heap) + hi_offset) >> pr->log2_page_size))
- break;
-
- /* Allocation would span chunk boundary, queue it to be freed as soon as
- we find suitable chunk. */
- vec_add1 (to_free, lo_offset);
- }
-
- if (to_free != 0)
- {
- uword i;
- for (i = 0; i < vec_len (to_free); i++)
- {
-#if USE_DLMALLOC == 0
- mheap_put (pr->heap, to_free[i]);
-#else
- mspace_put_no_offset (pr->heap, (void *) to_free[i]);
-#endif
- }
- vec_free (to_free);
- }
-
-#if USE_DLMALLOC == 0
- return lo_offset != ~0 ? (void *) (pr->heap + lo_offset) : 0;
-#else
- return lo_offset != ~0 ? (void *) lo_offset : 0;
-#endif
-}
-
-static void
-unix_physmem_free (vlib_main_t * vm, vlib_physmem_region_index_t idx, void *x)
-{
- vlib_physmem_region_t *pr = vlib_physmem_get_region (vm, idx);
- /* Return object to region's heap. */
-#if USE_DLMALLOC == 0
- mheap_put (pr->heap, x - pr->heap);
-#else
- mspace_put_no_offset (pr->heap, x);
-#endif
-}
-
-static clib_error_t *
-unix_physmem_region_alloc (vlib_main_t * vm, char *name, u32 size,
- u8 numa_node, u32 flags,
- vlib_physmem_region_index_t * idx)
-{
- vlib_physmem_main_t *vpm = &physmem_main;
- vlib_physmem_region_t *pr;
- clib_error_t *error = 0;
- clib_mem_vm_alloc_t alloc = { 0 };
- int i;
-
- pool_get (vpm->regions, pr);
-
- if ((pr - vpm->regions) >= 256)
- {
- error = clib_error_return (0, "maximum number of regions reached");
- goto error;
- }
-
- alloc.name = name;
- alloc.size = size;
- alloc.numa_node = numa_node;
-
- alloc.flags = (flags & VLIB_PHYSMEM_F_SHARED) ?
- CLIB_MEM_VM_F_SHARED : CLIB_MEM_VM_F_LOCKED;
-
- if ((flags & VLIB_PHYSMEM_F_HUGETLB))
- {
- alloc.flags |= CLIB_MEM_VM_F_HUGETLB;
- alloc.flags |= CLIB_MEM_VM_F_HUGETLB_PREALLOC;
- alloc.flags |= CLIB_MEM_VM_F_NUMA_FORCE;
- }
- else
- {
- alloc.flags |= CLIB_MEM_VM_F_NUMA_PREFER;
- }
-
- error = clib_mem_vm_ext_alloc (&alloc);
- if (error)
- goto error;
-
- pr->index = pr - vpm->regions;
- pr->flags = flags;
- pr->fd = alloc.fd;
- pr->mem = alloc.addr;
- pr->log2_page_size = alloc.log2_page_size;
- pr->n_pages = alloc.n_pages;
- pr->size = (u64) pr->n_pages << (u64) pr->log2_page_size;
- pr->page_mask = (1ull << pr->log2_page_size) - 1;
- pr->numa_node = numa_node;
- pr->name = format (0, "%s%c", name, 0);
-
- for (i = 0; i < pr->n_pages; i++)
- {
- void *ptr = pr->mem + ((u64) i << pr->log2_page_size);
- int node;
- if ((move_pages (0, 1, &ptr, 0, &node, 0) == 0) && (numa_node != node))
- {
- clib_warning ("physmem page for region \'%s\' allocated on the"
- " wrong numa node (requested %u actual %u)",
- pr->name, pr->numa_node, node, i);
- break;
- }
- }
-
- pr->page_table = clib_mem_vm_get_paddr (pr->mem, pr->log2_page_size,
- pr->n_pages);
-
- linux_vfio_dma_map_regions (vm);
-
- if (flags & VLIB_PHYSMEM_F_INIT_MHEAP)
- {
-#if USE_DLMALLOC == 0
- pr->heap = mheap_alloc_with_flags (pr->mem, pr->size,
- /* Don't want mheap mmap/munmap with IO memory. */
- MHEAP_FLAG_DISABLE_VM |
- MHEAP_FLAG_THREAD_SAFE);
-#else
- pr->heap = create_mspace_with_base (pr->mem, pr->size, 1 /* locked */ );
- mspace_disable_expand (pr->heap);
-#endif
- }
-
- *idx = pr->index;
-
- goto done;
-
-error:
- clib_memset (pr, 0, sizeof (*pr));
- pool_put (vpm->regions, pr);
-
-done:
- return error;
-}
-
-static void
-unix_physmem_region_free (vlib_main_t * vm, vlib_physmem_region_index_t idx)
-{
- vlib_physmem_main_t *vpm = &physmem_main;
- vlib_physmem_region_t *pr = vlib_physmem_get_region (vm, idx);
-
- if (pr->fd > 0)
- close (pr->fd);
- munmap (pr->mem, pr->size);
- vec_free (pr->name);
- pool_put (vpm->regions, pr);
-}
-
-clib_error_t *
-unix_physmem_init (vlib_main_t * vm)
-{
- vlib_physmem_main_t *vpm = &physmem_main;
- clib_error_t *error = 0;
- u64 *pt = 0;
-
- /* Avoid multiple calls. */
- if (vm->os_physmem_alloc_aligned)
- return error;
-
- /* check if pagemap is accessible */
- pt = clib_mem_vm_get_paddr (&pt, min_log2 (sysconf (_SC_PAGESIZE)), 1);
- if (pt[0])
- vpm->flags |= VLIB_PHYSMEM_MAIN_F_HAVE_PAGEMAP;
- vec_free (pt);
-
- if ((error = linux_vfio_init (vm)))
- return error;
-
- vm->os_physmem_alloc_aligned = unix_physmem_alloc_aligned;
- vm->os_physmem_free = unix_physmem_free;
- vm->os_physmem_region_alloc = unix_physmem_region_alloc;
- vm->os_physmem_region_free = unix_physmem_region_free;
-
- return error;
-}
-
-static clib_error_t *
-show_physmem (vlib_main_t * vm,
- unformat_input_t * input, vlib_cli_command_t * cmd)
-{
- vlib_physmem_main_t *vpm = &physmem_main;
- vlib_physmem_region_t *pr;
-
- /* *INDENT-OFF* */
- pool_foreach (pr, vpm->regions, (
- {
- vlib_cli_output (vm, "index %u name '%s' page-size %uKB num-pages %d "
- "numa-node %u fd %d\n",
- pr->index, pr->name, (1 << (pr->log2_page_size -10)),
- pr->n_pages, pr->numa_node, pr->fd);
- if (pr->heap)
- vlib_cli_output (vm, " %U", format_mheap, pr->heap, /* verbose */ 1);
- else
- vlib_cli_output (vm, " no heap\n");
- }));
- /* *INDENT-ON* */
- return 0;
-}
-
-/* *INDENT-OFF* */
-VLIB_CLI_COMMAND (show_physmem_command, static) = {
- .path = "show physmem",
- .short_help = "Show physical memory allocation",
- .function = show_physmem,
-};
-/* *INDENT-ON* */
-
-/*
- * fd.io coding-style-patch-verification: ON
- *
- * Local Variables:
- * eval: (c-set-style "gnu")
- * End:
- */
linux_vfio_main_t vfio_main;
-static int
-vfio_map_regions (vlib_main_t * vm, int fd)
+clib_error_t *
+vfio_map_physmem_page (vlib_main_t * vm, void *addr)
{
- vlib_physmem_main_t *vpm = &physmem_main;
+ vlib_physmem_main_t *vpm = &vm->physmem_main;
linux_vfio_main_t *lvm = &vfio_main;
- vlib_physmem_region_t *pr;
struct vfio_iommu_type1_dma_map dm = { 0 };
- int i;
+ uword log2_page_size = vpm->pmalloc_main->log2_page_sz;
+ uword physmem_start = pointer_to_uword (vpm->pmalloc_main->base);
+
+ if (lvm->container_fd == -1)
+ return clib_error_return (0, "No cointainer fd");
+
+ u32 page_index = vlib_physmem_get_page_index (vm, addr);
+
+ if (clib_bitmap_get (lvm->physmem_pages_mapped, page_index))
+ {
+ vlib_log_debug (lvm->log_default, "map DMA va:%p page:%u already "
+ "mapped", addr, page_index);
+ return 0;
+ }
dm.argsz = sizeof (struct vfio_iommu_type1_dma_map);
dm.flags = VFIO_DMA_MAP_FLAG_READ | VFIO_DMA_MAP_FLAG_WRITE;
+ dm.vaddr = physmem_start + (page_index << log2_page_size);
+ dm.size = 1ULL << log2_page_size;
+ dm.iova = dm.vaddr;
+ vlib_log_debug (lvm->log_default, "map DMA page:%u va:0x%lx iova:%lx "
+ "size:0x%lx", page_index, dm.vaddr, dm.iova, dm.size);
- /* *INDENT-OFF* */
- pool_foreach (pr, vpm->regions,
+ if (ioctl (lvm->container_fd, VFIO_IOMMU_MAP_DMA, &dm) == -1)
{
- vec_foreach_index (i, pr->page_table)
- {
- int rv;
- dm.vaddr = pointer_to_uword (pr->mem) + ((u64)i << pr->log2_page_size);
- dm.size = 1ull << pr->log2_page_size;
- dm.iova = dm.vaddr;
- vlib_log_debug (lvm->log_default, "map DMA va:0x%lx iova:%lx "
- "size:0x%lx", dm.vaddr, dm.iova, dm.size);
-
- if ((rv = ioctl (fd, VFIO_IOMMU_MAP_DMA, &dm)) &&
- errno != EINVAL)
- {
- vlib_log_err (lvm->log_default, "map DMA va:0x%lx iova:%lx "
- "size:0x%lx failed, error %s (errno %d)",
- dm.vaddr, dm.iova, dm.size, strerror (errno),
- errno);
- return rv;
- }
- }
- });
- /* *INDENT-ON* */
- return 0;
-}
-
-void
-linux_vfio_dma_map_regions (vlib_main_t * vm)
-{
- linux_vfio_main_t *lvm = &vfio_main;
+ vlib_log_err (lvm->log_default, "map DMA page:%u va:0x%lx iova:%lx "
+ "size:0x%lx failed, error %s (errno %d)", page_index,
+ dm.vaddr, dm.iova, dm.size, strerror (errno), errno);
+ return clib_error_return_unix (0, "physmem DMA map failed");
+ }
- if (lvm->container_fd != -1)
- vfio_map_regions (vm, lvm->container_fd);
+ lvm->physmem_pages_mapped = clib_bitmap_set (lvm->physmem_pages_mapped,
+ page_index, 1);
+ return 0;
}
static linux_pci_vfio_iommu_group_t *
/* iommu group pool index by group id hash */
uword *iommu_pool_index_by_group;
+ clib_bitmap_t *physmem_pages_mapped;
+
/* logging */
vlib_log_class_t log_default;
} linux_vfio_main_t;
extern linux_vfio_main_t vfio_main;
clib_error_t *linux_vfio_init (vlib_main_t * vm);
-void linux_vfio_dma_map_regions (vlib_main_t * vm);
+clib_error_t *vfio_map_physmem_page (vlib_main_t * vm, void *addr);
clib_error_t *linux_vfio_group_get_device_fd (vlib_pci_addr_t * addr,
int *fd, int *is_noiommu);
if (!vm->name)
vm->name = "VLIB";
- if ((error = unix_physmem_init (vm)))
+ if ((error = vlib_physmem_init (vm)))
{
clib_error_report (error);
goto done;
/* Pool of buffer free lists. */
vlib_buffer_free_list_t *buffer_free_list_pool;
- /* Allocate/free buffer memory for DMA transfers, descriptor rings, etc.
- buffer memory is guaranteed to be cache-aligned. */
-
- clib_error_t *(*os_physmem_region_alloc) (struct vlib_main_t * vm,
- char *name, u32 size,
- u8 numa_node, u32 flags,
- vlib_physmem_region_index_t *
- idx);
-
- void (*os_physmem_region_free) (struct vlib_main_t * vm,
- vlib_physmem_region_index_t idx);
-
- void *(*os_physmem_alloc_aligned) (struct vlib_main_t * vm,
- vlib_physmem_region_index_t idx,
- uword n_bytes, uword alignment);
- void (*os_physmem_free) (struct vlib_main_t * vm,
- vlib_physmem_region_index_t idx, void *x);
+ /* physical memory main structure. */
+ vlib_physmem_main_t physmem_main;
/* Node graph main structure. */
vlib_node_main_t node_main;
clib_error_t *vlib_pci_disable_msix_irq (vlib_main_t * vm,
vlib_pci_dev_handle_t h, u16 start,
u16 count);
+clib_error_t *vlib_pci_map_dma (vlib_main_t * vm, vlib_pci_dev_handle_t h,
+ void *ptr);
+
+int vlib_pci_supports_virtual_addr_dma (vlib_main_t * vm,
+ vlib_pci_dev_handle_t h);
unformat_function_t unformat_vlib_pci_addr;
format_function_t format_vlib_pci_addr;
--- /dev/null
+/*
+ * Copyright (c) 2018 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/mount.h>
+#include <sys/mman.h>
+#include <sys/fcntl.h>
+#include <sys/stat.h>
+#include <unistd.h>
+
+#include <vppinfra/linux/syscall.h>
+#include <vppinfra/linux/sysfs.h>
+#include <vlib/vlib.h>
+#include <vlib/physmem.h>
+#include <vlib/unix/unix.h>
+#include <vlib/pci/pci.h>
+#include <vlib/linux/vfio.h>
+
+clib_error_t *
+vlib_physmem_shared_map_create (vlib_main_t * vm, char *name, uword size,
+ u32 numa_node, u32 * map_index)
+{
+ clib_pmalloc_main_t *pm = vm->physmem_main.pmalloc_main;
+ vlib_physmem_main_t *vpm = &vm->physmem_main;
+ vlib_physmem_map_t *map;
+ clib_pmalloc_arena_t *a;
+ clib_error_t *error = 0;
+ void *va;
+ int i;
+
+ va = clib_pmalloc_create_shared_arena (pm, name, size, numa_node);
+
+ if (va == 0)
+ return clib_error_return (0, "%U", format_clib_error,
+ clib_pmalloc_last_error (pm));
+
+ a = clib_pmalloc_get_arena (pm, va);
+
+ pool_get (vpm->maps, map);
+ *map_index = map->index = map - vpm->maps;
+ map->base = va;
+ map->fd = a->fd;
+ map->n_pages = a->n_pages;
+ map->log2_page_size = a->log2_page_sz;
+
+ for (i = 0; i < a->n_pages; i++)
+ {
+ uword pa = clib_pmalloc_get_pa (pm, (u8 *) va + (i << a->log2_page_sz));
+
+ /* maybe iova */
+ if (pa == 0)
+ pa = pointer_to_uword (va);
+
+ vec_add1 (map->page_table, pa);
+ }
+
+ return error;
+}
+
+vlib_physmem_map_t *
+vlib_physmem_get_map (vlib_main_t * vm, u32 index)
+{
+ vlib_physmem_main_t *vpm = &vm->physmem_main;
+ return pool_elt_at_index (vpm->maps, index);
+}
+
+clib_error_t *
+vlib_physmem_init (vlib_main_t * vm)
+{
+ vlib_physmem_main_t *vpm = &vm->physmem_main;
+ clib_error_t *error = 0;
+ u64 *pt = 0;
+ void *p;
+
+ /* check if pagemap is accessible */
+ pt = clib_mem_vm_get_paddr (&pt, min_log2 (sysconf (_SC_PAGESIZE)), 1);
+ if (pt[0])
+ vpm->flags |= VLIB_PHYSMEM_MAIN_F_HAVE_PAGEMAP;
+ vec_free (pt);
+
+ if ((error = linux_vfio_init (vm)))
+ return error;
+
+ p = clib_mem_alloc_aligned (sizeof (clib_pmalloc_main_t),
+ CLIB_CACHE_LINE_BYTES);
+ memset (p, 0, sizeof (clib_pmalloc_main_t));
+ vpm->pmalloc_main = (clib_pmalloc_main_t *) p;
+ clib_pmalloc_init (vpm->pmalloc_main, 0);
+
+ return error;
+}
+
+static clib_error_t *
+show_physmem (vlib_main_t * vm,
+ unformat_input_t * input, vlib_cli_command_t * cmd)
+{
+ vlib_physmem_main_t *vpm = &vm->physmem_main;
+ unformat_input_t _line_input, *line_input = &_line_input;
+ u32 verbose = 0;
+
+ if (unformat_user (input, unformat_line_input, line_input))
+ {
+ while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
+ {
+ if (unformat (line_input, "verbose"))
+ verbose = 1;
+ else if (unformat (line_input, "v"))
+ verbose = 1;
+ else if (unformat (line_input, "detail"))
+ verbose = 2;
+ else if (unformat (line_input, "d"))
+ verbose = 2;
+ else
+ break;
+ }
+ unformat_free (line_input);
+ }
+
+ vlib_cli_output (vm, " %U", format_pmalloc, vpm->pmalloc_main, verbose);
+ return 0;
+}
+
+/* *INDENT-OFF* */
+VLIB_CLI_COMMAND (show_physmem_command, static) = {
+ .path = "show physmem",
+ .short_help = "Show physical memory allocation",
+ .function = show_physmem,
+};
+/* *INDENT-ON* */
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */
#ifndef included_vlib_physmem_h
#define included_vlib_physmem_h
-typedef u8 vlib_physmem_region_index_t;
+#include <vppinfra/pmalloc.h>
typedef struct
{
- vlib_physmem_region_index_t index;
- void *mem;
- uword size;
+ int index;
int fd;
- u8 log2_page_size;
- u16 n_pages;
- u32 page_mask;
-
- void *heap;
- u32 flags;
-#define VLIB_PHYSMEM_F_INIT_MHEAP (1 << 0)
-#define VLIB_PHYSMEM_F_HUGETLB (1 << 1)
-#define VLIB_PHYSMEM_F_SHARED (1 << 2)
-
- u8 numa_node;
- u64 *page_table;
- u8 *name;
-} vlib_physmem_region_t;
-
-
+ void *base;
+ u32 n_pages;
+ uword *page_table;
+ u32 log2_page_size;
+} vlib_physmem_map_t;
typedef struct
{
u32 flags;
#define VLIB_PHYSMEM_MAIN_F_HAVE_PAGEMAP (1 << 0)
#define VLIB_PHYSMEM_MAIN_F_HAVE_IOMMU (1 << 1)
- vlib_physmem_region_t *regions;
+ vlib_physmem_map_t *maps;
+ clib_pmalloc_main_t *pmalloc_main;
} vlib_physmem_main_t;
-extern vlib_physmem_main_t physmem_main;
-
#endif /* included_vlib_physmem_h */
/*
#ifndef included_vlib_physmem_funcs_h
#define included_vlib_physmem_funcs_h
-always_inline vlib_physmem_region_t *
-vlib_physmem_get_region (vlib_main_t * vm, u8 index)
-{
- vlib_physmem_main_t *vpm = &physmem_main;
- return pool_elt_at_index (vpm->regions, index);
-}
-
-always_inline u64
-vlib_physmem_offset_to_physical (vlib_main_t * vm,
- vlib_physmem_region_index_t idx, uword o)
-{
- vlib_physmem_region_t *pr = vlib_physmem_get_region (vm, idx);
- uword page_index = o >> pr->log2_page_size;
- ASSERT (o < pr->size);
- ASSERT (pr->page_table[page_index] != 0);
- return (vec_elt (pr->page_table, page_index) + (o & pr->page_mask));
-}
-
-always_inline int
-vlib_physmem_is_virtual (vlib_main_t * vm, vlib_physmem_region_index_t idx,
- uword p)
-{
- vlib_physmem_region_t *pr = vlib_physmem_get_region (vm, idx);
- return p >= pointer_to_uword (pr->mem)
- && p < (pointer_to_uword (pr->mem) + pr->size);
-}
-
-always_inline uword
-vlib_physmem_offset_of (vlib_main_t * vm, vlib_physmem_region_index_t idx,
- void *p)
-{
- vlib_physmem_region_t *pr = vlib_physmem_get_region (vm, idx);
- uword a = pointer_to_uword (p);
- uword o;
+clib_error_t *vlib_physmem_init (vlib_main_t * vm);
+clib_error_t *vlib_physmem_shared_map_create (vlib_main_t * vm, char *name,
+ uword size, u32 numa_node,
+ u32 * map_index);
- ASSERT (vlib_physmem_is_virtual (vm, idx, a));
- o = a - pointer_to_uword (pr->mem);
-
- /* Offset must fit in 32 bits. */
- ASSERT ((uword) o == a - pointer_to_uword (pr->mem));
-
- return o;
-}
+vlib_physmem_map_t *vlib_physmem_get_map (vlib_main_t * vm, u32 index);
always_inline void *
-vlib_physmem_at_offset (vlib_main_t * vm, vlib_physmem_region_index_t idx,
- uword offset)
+vlib_physmem_alloc_aligned (vlib_main_t * vm, uword n_bytes, uword alignment)
{
- vlib_physmem_region_t *pr = vlib_physmem_get_region (vm, idx);
- ASSERT (offset < pr->size);
- return uword_to_pointer (pointer_to_uword (pr->mem) + offset, void *);
+ clib_pmalloc_main_t *pm = vm->physmem_main.pmalloc_main;
+ return clib_pmalloc_alloc_aligned (pm, n_bytes, alignment);
}
+/* By default allocate I/O memory with cache line alignment. */
always_inline void *
-vlib_physmem_alloc_aligned (vlib_main_t * vm, vlib_physmem_region_index_t idx,
- clib_error_t ** error,
- uword n_bytes, uword alignment)
+vlib_physmem_alloc (vlib_main_t * vm, uword n_bytes)
{
- void *r = vm->os_physmem_alloc_aligned (vm, idx, n_bytes, alignment);
- if (!r)
- *error =
- clib_error_return (0, "failed to allocate %wd bytes of I/O memory",
- n_bytes);
- else
- *error = 0;
- return r;
+ return vlib_physmem_alloc_aligned (vm, n_bytes, CLIB_CACHE_LINE_BYTES);
}
-/* By default allocate I/O memory with cache line alignment. */
always_inline void *
-vlib_physmem_alloc (vlib_main_t * vm, vlib_physmem_region_index_t idx,
- clib_error_t ** error, uword n_bytes)
+vlib_physmem_alloc_from_map (vlib_main_t * vm, u32 physmem_map_index,
+ uword n_bytes, uword alignment)
{
- return vlib_physmem_alloc_aligned (vm, idx, error, n_bytes,
- CLIB_CACHE_LINE_BYTES);
+ clib_pmalloc_main_t *pm = vm->physmem_main.pmalloc_main;
+ vlib_physmem_map_t *map = vlib_physmem_get_map (vm, physmem_map_index);
+ return clib_pmalloc_alloc_from_arena (pm, map->base, n_bytes,
+ CLIB_CACHE_LINE_BYTES);
}
always_inline void
-vlib_physmem_free (vlib_main_t * vm, vlib_physmem_region_index_t idx,
- void *mem)
+vlib_physmem_free (vlib_main_t * vm, void *p)
{
- if (mem)
- vm->os_physmem_free (vm, idx, mem);
+ if (p)
+ clib_pmalloc_free (vm->physmem_main.pmalloc_main, p);
}
always_inline u64
-vlib_physmem_virtual_to_physical (vlib_main_t * vm,
- vlib_physmem_region_index_t idx, void *mem)
+vlib_physmem_get_page_index (vlib_main_t * vm, void *mem)
{
- vlib_physmem_main_t *vpm = &physmem_main;
- vlib_physmem_region_t *pr = pool_elt_at_index (vpm->regions, idx);
- uword o = mem - pr->mem;
- return vlib_physmem_offset_to_physical (vm, idx, o);
+ clib_pmalloc_main_t *pm = vm->physmem_main.pmalloc_main;
+ return clib_pmalloc_get_page_index (pm, mem);
}
-
-always_inline clib_error_t *
-vlib_physmem_region_alloc (vlib_main_t * vm, char *name, u32 size,
- u8 numa_node, u32 flags,
- vlib_physmem_region_index_t * idx)
+always_inline u64
+vlib_physmem_get_pa (vlib_main_t * vm, void *mem)
{
- return vm->os_physmem_region_alloc (vm, name, size, numa_node, flags, idx);
+ clib_pmalloc_main_t *pm = vm->physmem_main.pmalloc_main;
+ return clib_pmalloc_get_pa (pm, mem);
}
-always_inline void
-vlib_physmem_region_free (struct vlib_main_t *vm,
- vlib_physmem_region_index_t idx)
+always_inline clib_error_t *
+vlib_physmem_last_error (struct vlib_main_t * vm)
{
- vm->os_physmem_region_free (vm, idx);
+ return clib_error_return (0, "unknown error");
}
#endif /* included_vlib_physmem_funcs_h */
unix_main_t unix_main;
clib_file_main_t file_main;
-vlib_physmem_main_t physmem_main;
static clib_error_t *
unix_main_init (vlib_main_t * vm)
/* Main function for Unix VLIB. */
int vlib_unix_main (int argc, char *argv[]);
-clib_error_t *unix_physmem_init (vlib_main_t * vm);
-
/* Set prompt for CLI. */
void vlib_unix_cli_set_prompt (char *prompt);
macros.c
maplog.c
mhash.c
+ pmalloc.c
pool.c
ptclosure.c
random.c
mheap.h
os.h
pipeline.h
+ pmalloc.h
pool.h
pmc.h
ptclosure.h
longjmp
macros
maplog
+ pmalloc
pool_iterate
ptclosure
random
#include <unistd.h>
#include <sys/syscall.h>
+static inline int
+getcpu (unsigned *cpu, unsigned *node, void *tcache)
+{
+ return syscall (__NR_getcpu, cpu, node, tcache);
+}
+
static inline long
set_mempolicy (int mode, const unsigned long *nodemask, unsigned long maxnode)
{
--- /dev/null
+/*
+ * Copyright (c) 2018 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define _GNU_SOURCE
+#include <stdlib.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <linux/mempolicy.h>
+#include <linux/memfd.h>
+
+#include <vppinfra/format.h>
+#include <vppinfra/linux/syscall.h>
+#include <vppinfra/linux/sysfs.h>
+#include <vppinfra/mem.h>
+#include <vppinfra/hash.h>
+#include <vppinfra/pmalloc.h>
+
+#if __SIZEOF_POINTER__ >= 8
+#define DEFAULT_RESERVED_MB 16384
+#else
+#define DEFAULT_RESERVED_MB 256
+#endif
+
+static inline clib_pmalloc_chunk_t *
+get_chunk (clib_pmalloc_page_t * pp, u32 index)
+{
+ return pool_elt_at_index (pp->chunks, index);
+}
+
+static inline int
+pmalloc_validate_numa_node (u32 * numa_node)
+{
+ if (*numa_node == CLIB_PMALLOC_NUMA_LOCAL)
+ {
+ u32 cpu;
+ if (getcpu (&cpu, numa_node, 0) != 0)
+ return 1;
+ }
+ return 0;
+}
+
+int
+clib_pmalloc_init (clib_pmalloc_main_t * pm, uword size)
+{
+ struct stat st;
+ uword off, pagesize;
+ int fd;
+
+ ASSERT (pm->error == 0);
+
+ pm->log2_page_sz = 21;
+ pm->error = clib_mem_create_hugetlb_fd ("detect_hugepage_size", &fd);
+
+ if (pm->error)
+ return -1;
+
+ if (fd != -1)
+ {
+ if (fstat (fd, &st) == -1)
+ pm->log2_page_sz = min_log2 (st.st_blksize);
+ close (fd);
+ }
+
+ pagesize = 1ULL << pm->log2_page_sz;
+
+ size = size ? size : ((u64) DEFAULT_RESERVED_MB) << 20;
+ size = round_pow2 (size, pagesize);
+
+ pm->max_pages = size >> pm->log2_page_sz;
+
+ /* reserve VA space for future growth */
+ pm->base = mmap (0, size + pagesize, PROT_NONE,
+ MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
+
+ if (pm->base == MAP_FAILED)
+ {
+ pm->error = clib_error_return_unix (0, "failed to reserve %u pages");
+ return -1;
+ }
+
+ off = round_pow2 (pointer_to_uword (pm->base), pagesize) -
+ pointer_to_uword (pm->base);
+
+ /* trim start and end of reservation to be page aligned */
+ if (off)
+ {
+ munmap (pm->base, off);
+ pm->base += off;
+ }
+
+ munmap (pm->base + (pm->max_pages * pagesize), pagesize - off);
+ return 0;
+}
+
+static inline void *
+alloc_chunk_from_page (clib_pmalloc_main_t * pm, clib_pmalloc_page_t * pp,
+ u32 n_blocks, u32 block_align, u32 numa_node)
+{
+ clib_pmalloc_chunk_t *c;
+ void *va;
+ u32 off;
+ u32 alloc_chunk_index;
+
+ if (pp->chunks == 0)
+ {
+ pool_get (pp->chunks, c);
+ pp->n_free_chunks = 1;
+ pp->first_chunk_index = c - pp->chunks;
+ c->prev = c->next = ~0;
+ c->size = pp->n_free_blocks;
+ }
+
+ alloc_chunk_index = pp->first_chunk_index;
+
+next_chunk:
+ c = pool_elt_at_index (pp->chunks, alloc_chunk_index);
+ off = (block_align - (c->start & (block_align - 1))) & (block_align - 1);
+
+ if (c->used || n_blocks + off > c->size)
+ {
+ if (c->next == ~0)
+ return 0;
+ alloc_chunk_index = c->next;
+ goto next_chunk;
+ }
+
+ /* if alignment is needed create new empty chunk */
+ if (off)
+ {
+ u32 offset_chunk_index;
+ clib_pmalloc_chunk_t *co;
+ pool_get (pp->chunks, c);
+ pp->n_free_chunks++;
+ offset_chunk_index = alloc_chunk_index;
+ alloc_chunk_index = c - pp->chunks;
+
+ co = pool_elt_at_index (pp->chunks, offset_chunk_index);
+ c->size = co->size - off;
+ c->next = co->next;
+ c->start = co->start + off;
+ c->prev = offset_chunk_index;
+ co->size = off;
+ co->next = alloc_chunk_index;
+ }
+
+ c->used = 1;
+ if (c->size > n_blocks)
+ {
+ u32 tail_chunk_index;
+ clib_pmalloc_chunk_t *ct;
+ pool_get (pp->chunks, ct);
+ pp->n_free_chunks++;
+ tail_chunk_index = ct - pp->chunks;
+ c = pool_elt_at_index (pp->chunks, alloc_chunk_index);
+ ct->size = c->size - n_blocks;
+ ct->next = c->next;
+ ct->prev = alloc_chunk_index;
+ ct->start = c->start + n_blocks;
+
+ c->size = n_blocks;
+ c->next = tail_chunk_index;
+ if (ct->next != ~0)
+ pool_elt_at_index (pp->chunks, ct->next)->prev = tail_chunk_index;
+ }
+ else if (c->next != ~0)
+ pool_elt_at_index (pp->chunks, c->next)->prev = alloc_chunk_index;
+
+ c = get_chunk (pp, alloc_chunk_index);
+ va = pm->base + ((pp - pm->pages) << pm->log2_page_sz) +
+ (c->start << PMALLOC_LOG2_BLOCK_SZ);
+ hash_set (pm->chunk_index_by_va, pointer_to_uword (va), alloc_chunk_index);
+ pp->n_free_blocks -= n_blocks;
+ pp->n_free_chunks--;
+ return va;
+}
+
+static inline clib_pmalloc_page_t *
+pmalloc_map_pages (clib_pmalloc_main_t * pm, clib_pmalloc_arena_t * a,
+ u32 numa_node, u32 n_pages)
+{
+ clib_pmalloc_page_t *pp = 0;
+ u64 seek, pa, sys_page_size;
+ int pagemap_fd, status, rv, i, mmap_flags;
+ void *va;
+ int old_mpol = -1;
+ long unsigned int mask[16] = { 0 };
+ long unsigned int old_mask[16] = { 0 };
+
+ clib_error_free (pm->error);
+
+ if (pm->max_pages <= vec_len (pm->pages))
+ {
+ pm->error = clib_error_return (0, "maximum number of pages reached");
+ return 0;
+ }
+
+ pm->error = clib_sysfs_prealloc_hugepages (numa_node, pm->log2_page_sz,
+ n_pages);
+
+ if (pm->error)
+ return 0;
+
+ rv = get_mempolicy (&old_mpol, old_mask, sizeof (old_mask) * 8 + 1, 0, 0);
+ /* failure to get mempolicy means we can only proceed with numa 0 maps */
+ if (rv == -1 && numa_node != 0)
+ {
+ pm->error = clib_error_return_unix (0, "failed to get mempolicy");
+ return 0;
+ }
+
+ mask[0] = 1 << numa_node;
+ rv = set_mempolicy (MPOL_BIND, mask, sizeof (mask) * 8 + 1);
+ if (rv == -1 && numa_node != 0)
+ {
+ pm->error = clib_error_return_unix (0, "failed to set mempolicy for "
+ "numa node %u", numa_node);
+ return 0;
+ }
+
+ mmap_flags = MAP_FIXED | MAP_HUGETLB | MAP_LOCKED | MAP_ANONYMOUS;
+ if (a->flags & CLIB_PMALLOC_ARENA_F_SHARED_MEM)
+ {
+ mmap_flags |= MAP_SHARED;
+ pm->error = clib_mem_create_hugetlb_fd ((char *) a->name, &a->fd);
+ if (a->fd == -1)
+ goto error;
+ }
+ else
+ {
+ mmap_flags |= MAP_PRIVATE;
+ a->fd = -1;
+ }
+
+ va = pm->base + (vec_len (pm->pages) << pm->log2_page_sz);
+ if (mmap (va, n_pages << pm->log2_page_sz, PROT_READ | PROT_WRITE,
+ mmap_flags, a->fd, 0) == MAP_FAILED)
+ {
+ pm->error = clib_error_return_unix (0, "failed to mmap %u pages at %p "
+ "fd %d numa %d flags 0x%x", n_pages,
+ va, a->fd, numa_node, mmap_flags);
+ goto error;
+ }
+
+ rv = set_mempolicy (old_mpol, old_mask, sizeof (old_mask) * 8 + 1);
+ if (rv == -1 && numa_node != 0)
+ {
+ pm->error = clib_error_return_unix (0, "failed to restore mempolicy");
+ goto error;
+ }
+
+ /* we tolerate move_pages failure only if request os for numa node 0
+ to support non-numa kernels */
+ rv = move_pages (0, 1, &va, 0, &status, 0);
+ if ((rv == 0 && status != numa_node) || (rv != 0 && numa_node != 0))
+ {
+ pm->error = rv == -1 ?
+ clib_error_return_unix (0, "page allocated on wrong node, numa node "
+ "%u status %d", numa_node, status) :
+ clib_error_return (0, "page allocated on wrong node, numa node "
+ "%u status %d", numa_node, status);
+
+ /* unmap & reesrve */
+ munmap (va, n_pages << pm->log2_page_sz);
+ mmap (va, n_pages << pm->log2_page_sz, PROT_NONE,
+ MAP_FIXED | MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
+ goto error;
+ }
+
+ memset (va, 0, n_pages << pm->log2_page_sz);
+ sys_page_size = sysconf (_SC_PAGESIZE);
+ pagemap_fd = open ((char *) "/proc/self/pagemap", O_RDONLY);
+
+ for (i = 0; i < n_pages; i++)
+ {
+ uword page_va = pointer_to_uword ((u8 *) va + (i << pm->log2_page_sz));
+ vec_add2 (pm->pages, pp, 1);
+ pp->n_free_blocks = 1 << (pm->log2_page_sz - PMALLOC_LOG2_BLOCK_SZ);
+ pp->index = pp - pm->pages;
+ pp->arena_index = a->index;
+
+ vec_add1 (a->page_indices, pp->index);
+ a->n_pages++;
+
+ seek = (page_va / sys_page_size) * sizeof (pa);
+ if (pagemap_fd != -1 &&
+ lseek (pagemap_fd, seek, SEEK_SET) == seek &&
+ read (pagemap_fd, &pa, sizeof (pa)) == (sizeof (pa)) &&
+ pa & (1ULL << 63) /* page present bit */ )
+ {
+ pp->pa = (pa & pow2_mask (55)) * sys_page_size;
+ }
+ vec_add1_aligned (pm->va_pa_diffs, pp->pa ? page_va - pp->pa : 0,
+ CLIB_CACHE_LINE_BYTES);
+ }
+
+ if (pagemap_fd != -1)
+ close (pagemap_fd);
+
+ /* return pointer to 1st page */
+ return pp - (n_pages - 1);
+
+error:
+ if (a->fd != -1)
+ close (a->fd);
+ return 0;
+}
+
+void *
+clib_pmalloc_create_shared_arena (clib_pmalloc_main_t * pm, char *name,
+ uword size, u32 numa_node)
+{
+ clib_pmalloc_arena_t *a;
+ clib_pmalloc_page_t *pp;
+ u32 n_pages = round_pow2 (size, 1 << pm->log2_page_sz) >> pm->log2_page_sz;
+
+ if (n_pages + vec_len (pm->pages) > pm->max_pages)
+ return 0;
+
+ if (pmalloc_validate_numa_node (&numa_node))
+ return 0;
+
+ pool_get (pm->arenas, a);
+ a->index = a - pm->arenas;
+ a->name = format (0, "%s%c", name, 0);
+ a->numa_node = numa_node;
+ a->flags = CLIB_PMALLOC_ARENA_F_SHARED_MEM;
+ a->log2_page_sz = pm->log2_page_sz;
+
+ if ((pp = pmalloc_map_pages (pm, a, numa_node, n_pages)) == 0)
+ {
+ vec_free (a->name);
+ memset (a, 0, sizeof (*a));
+ pool_put (pm->arenas, a);
+ return 0;
+ }
+
+ return pm->base + (pp->index << pm->log2_page_sz);
+}
+
+static inline void *
+clib_pmalloc_alloc_inline (clib_pmalloc_main_t * pm, clib_pmalloc_arena_t * a,
+ uword size, uword align, u32 numa_node)
+{
+ clib_pmalloc_page_t *pp;
+ u32 n_blocks, block_align, *page_index;
+
+ ASSERT (is_pow2 (align));
+
+ if (pmalloc_validate_numa_node (&numa_node))
+ return 0;
+
+ if (a == 0)
+ {
+ vec_validate_init_empty (pm->default_arena_for_numa_node,
+ numa_node, ~0);
+ if (pm->default_arena_for_numa_node[numa_node] == ~0)
+ {
+ pool_get (pm->arenas, a);
+ pm->default_arena_for_numa_node[numa_node] = a - pm->arenas;
+ a->name = format (0, "default-numa-%u%c", numa_node, 0);
+ a->numa_node = numa_node;
+ }
+ else
+ a = pool_elt_at_index (pm->arenas,
+ pm->default_arena_for_numa_node[numa_node]);
+ }
+
+ n_blocks = round_pow2 (size, PMALLOC_BLOCK_SZ) / PMALLOC_BLOCK_SZ;
+ block_align = align >> PMALLOC_LOG2_BLOCK_SZ;
+
+ vec_foreach (page_index, a->page_indices)
+ {
+ pp = vec_elt_at_index (pm->pages, *page_index);
+ void *rv = alloc_chunk_from_page (pm, pp, n_blocks, block_align,
+ numa_node);
+
+ if (rv)
+ return rv;
+ }
+
+ if ((a->flags & CLIB_PMALLOC_ARENA_F_SHARED_MEM) == 0 &&
+ (pp = pmalloc_map_pages (pm, a, numa_node, 1)))
+ return alloc_chunk_from_page (pm, pp, n_blocks, block_align, numa_node);
+
+ return 0;
+}
+
+void *
+clib_pmalloc_alloc_aligned_on_numa (clib_pmalloc_main_t * pm, uword size,
+ uword align, u32 numa_node)
+{
+ return clib_pmalloc_alloc_inline (pm, 0, size, align, numa_node);
+}
+
+void *
+clib_pmalloc_alloc_aligned (clib_pmalloc_main_t * pm, uword size, uword align)
+{
+ return clib_pmalloc_alloc_inline (pm, 0, size, align,
+ CLIB_PMALLOC_NUMA_LOCAL);
+}
+
+void *
+clib_pmalloc_alloc_from_arena (clib_pmalloc_main_t * pm, void *arena_va,
+ uword size, uword align)
+{
+ clib_pmalloc_arena_t *a = clib_pmalloc_get_arena (pm, arena_va);
+ return clib_pmalloc_alloc_inline (pm, a, size, align, 0);
+}
+
+void
+clib_pmalloc_free (clib_pmalloc_main_t * pm, void *va)
+{
+ clib_pmalloc_page_t *pp;
+ clib_pmalloc_chunk_t *c;
+ uword *p;
+ u32 chunk_index, page_index;
+
+ p = hash_get (pm->chunk_index_by_va, pointer_to_uword (va));
+
+ if (p == 0)
+ os_panic ();
+
+ chunk_index = p[0];
+ page_index = clib_pmalloc_get_page_index (pm, va);
+ hash_unset (pm->chunk_index_by_va, pointer_to_uword (va));
+
+ pp = vec_elt_at_index (pm->pages, page_index);
+ c = pool_elt_at_index (pp->chunks, chunk_index);
+ c->used = 0;
+ pp->n_free_blocks += c->size;
+ pp->n_free_chunks++;
+
+ /* merge with next if free */
+ if (c->next != ~0 && get_chunk (pp, c->next)->used == 0)
+ {
+ clib_pmalloc_chunk_t *next = get_chunk (pp, c->next);
+ c->size += next->size;
+ c->next = next->next;
+ if (next->next != ~0)
+ get_chunk (pp, next->next)->prev = chunk_index;
+ memset (next, 0, sizeof (*next));
+ pool_put (pp->chunks, next);
+ pp->n_free_chunks--;
+ }
+
+ /* merge with prev if free */
+ if (c->prev != ~0 && get_chunk (pp, c->prev)->used == 0)
+ {
+ clib_pmalloc_chunk_t *prev = get_chunk (pp, c->prev);
+ prev->size += c->size;
+ prev->next = c->next;
+ if (c->next != ~0)
+ get_chunk (pp, c->next)->prev = c->prev;
+ memset (c, 0, sizeof (*c));
+ pool_put (pp->chunks, c);
+ pp->n_free_chunks--;
+ }
+}
+
+static u8 *
+format_pmalloc_page (u8 * s, va_list * va)
+{
+ clib_pmalloc_page_t *pp = va_arg (*va, clib_pmalloc_page_t *);
+ int verbose = va_arg (*va, int);
+ u32 indent = format_get_indent (s);
+
+ s = format (s, "page %u: phys-addr %p ", pp->index, pp->pa);
+
+ if (pp->chunks == 0)
+ return s;
+
+ s = format (s, "free %u chunks %u free-chunks %d ",
+ (pp->n_free_blocks) << PMALLOC_LOG2_BLOCK_SZ,
+ pool_elts (pp->chunks), pp->n_free_chunks);
+
+ if (verbose >= 2)
+ {
+ clib_pmalloc_chunk_t *c;
+ c = pool_elt_at_index (pp->chunks, pp->first_chunk_index);
+ s = format (s, "\n%U%12s%12s%8s%8s%8s%8s",
+ format_white_space, indent + 2,
+ "chunk offset", "size", "used", "index", "prev", "next");
+ while (1)
+ {
+ s = format (s, "\n%U%12u%12u%8s%8d%8d%8d",
+ format_white_space, indent + 2,
+ c->start << PMALLOC_LOG2_BLOCK_SZ,
+ c->size << PMALLOC_LOG2_BLOCK_SZ,
+ c->used ? "yes" : "no",
+ c - pp->chunks, c->prev, c->next);
+ if (c->next == ~0)
+ break;
+ c = pool_elt_at_index (pp->chunks, c->next);
+ }
+ }
+ return s;
+}
+
+u8 *
+format_pmalloc (u8 * s, va_list * va)
+{
+ clib_pmalloc_main_t *pm = va_arg (*va, clib_pmalloc_main_t *);
+ int verbose = va_arg (*va, int);
+ u32 indent = format_get_indent (s);
+
+ clib_pmalloc_page_t *pp;
+ clib_pmalloc_arena_t *a;
+
+ s = format (s, "used-pages %u reserved-pages %u pagesize %uKB",
+ vec_len (pm->pages), pm->max_pages,
+ 1 << (pm->log2_page_sz - 10));
+
+ if (verbose >= 2)
+ s = format (s, " va-start %p", pm->base);
+
+ if (pm->error)
+ s = format (s, "\n%Ulast-error: %U", format_white_space, indent + 2,
+ format_clib_error, pm->error);
+
+
+ /* *INDENT-OFF* */
+ pool_foreach (a, pm->arenas,
+ {
+ u32 *page_index;
+ s = format (s, "\n%Uarena '%s' pages %u numa-node %u",
+ format_white_space, indent + 2,
+ a->name, vec_len (a->page_indices), a->numa_node);
+ if (a->fd != -1)
+ s = format (s, " shared fd %d", a->fd);
+ if (verbose >= 1)
+ vec_foreach (page_index, a->page_indices)
+ {
+ pp = vec_elt_at_index (pm->pages, *page_index);
+ s = format (s, "\n%U%U", format_white_space, indent + 4,
+ format_pmalloc_page, pp, verbose);
+ }
+ });
+ /* *INDENT-ON* */
+
+ return s;
+}
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */
--- /dev/null
+/*
+ * Copyright (c) 2018 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef included_palloc_h
+#define included_palloc_h
+#include <vppinfra/format.h>
+#include <vppinfra/pool.h>
+
+#define PMALLOC_LOG2_BLOCK_SZ CLIB_LOG2_CACHE_LINE_BYTES
+#define PMALLOC_BLOCK_SZ (1 << 6)
+
+#define CLIB_PMALLOC_NUMA_LOCAL 0xffffffff
+
+typedef struct
+{
+ u32 start, prev, next;
+ u32 size:31;
+ u32 used:1;
+} clib_pmalloc_chunk_t;
+
+STATIC_ASSERT_SIZEOF (clib_pmalloc_chunk_t, 16);
+
+typedef struct
+{
+ u32 index;
+ u32 arena_index;
+ uword pa;
+ clib_pmalloc_chunk_t *chunks;
+ u32 first_chunk_index;
+ u32 n_free_chunks;
+ u32 n_free_blocks;
+} clib_pmalloc_page_t;
+
+typedef struct
+{
+ u32 index;
+ u32 flags;
+#define CLIB_PMALLOC_ARENA_F_SHARED_MEM (1 << 0)
+ int fd;
+ u32 numa_node;
+ u32 first_page_index;
+ u32 log2_page_sz;
+ u32 n_pages;
+ u8 *name;
+ u32 *page_indices;
+} clib_pmalloc_arena_t;
+
+typedef struct
+{
+ u8 *base;
+ uword log2_page_sz;
+ uword *va_pa_diffs;
+ u32 max_pages;
+ clib_pmalloc_page_t *pages;
+ uword *chunk_index_by_va;
+ clib_pmalloc_arena_t *arenas;
+ u32 *default_arena_for_numa_node;
+
+ clib_error_t *error;
+} clib_pmalloc_main_t;
+
+
+int clib_pmalloc_init (clib_pmalloc_main_t * pm, uword size);
+void *clib_pmalloc_alloc_aligned_on_numa (clib_pmalloc_main_t * pm,
+ uword size, uword align,
+ u32 numa_node);
+void *clib_pmalloc_alloc_aligned (clib_pmalloc_main_t * pm, uword size,
+ uword align);
+void clib_pmalloc_free (clib_pmalloc_main_t * pm, void *va);
+
+void *clib_pmalloc_create_shared_arena (clib_pmalloc_main_t * pm, char *name,
+ uword size, u32 numa_node);
+
+void *clib_pmalloc_alloc_from_arena (clib_pmalloc_main_t * pm, void *arena_va,
+ uword size, uword align);
+
+format_function_t format_pmalloc;
+
+always_inline clib_error_t *
+clib_pmalloc_last_error (clib_pmalloc_main_t * pm)
+{
+ return pm->error;
+}
+
+always_inline u32
+clib_pmalloc_get_page_index (clib_pmalloc_main_t * pm, void *va)
+{
+ uword index = (pointer_to_uword (va) - pointer_to_uword (pm->base)) >>
+ pm->log2_page_sz;
+
+ ASSERT (index < vec_len (pm->pages));
+
+ return index;
+}
+
+always_inline clib_pmalloc_arena_t *
+clib_pmalloc_get_arena (clib_pmalloc_main_t * pm, void *va)
+{
+ u32 index = clib_pmalloc_get_page_index (pm, va);
+ return pm->arenas + pm->pages[index].arena_index;
+}
+
+always_inline uword
+clib_pmalloc_get_pa (clib_pmalloc_main_t * pm, void *va)
+{
+ u32 index = clib_pmalloc_get_page_index (pm, va);
+ return pointer_to_uword (va) - pm->va_pa_diffs[index];
+}
+
+
+#endif /* included_palloc_h */
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */
--- /dev/null
+/*
+ * Copyright (c) 2018 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <vppinfra/format.h>
+#include <vppinfra/pmalloc.h>
+#include <vppinfra/random.h>
+
+typedef struct
+{
+ uword baseva;
+ uword size;
+ uword *vas;
+ u32 nitems;
+ u32 item_size;
+ u32 align;
+ int max_numa;
+ u32 arena_pages;
+ u32 arena_numa;
+ u32 arena_items;
+ int verbose;
+ clib_pmalloc_main_t pmalloc_main;
+} test_main_t;
+
+test_main_t test_main;
+
+clib_error_t *
+test_palloc (test_main_t * tm)
+{
+ clib_pmalloc_main_t *pm = &tm->pmalloc_main;
+ void *arena;
+ int i;
+ uword *va;
+
+ if (clib_pmalloc_init (pm, 0) != 0)
+ return clib_error_return (0, "pmalloc init failure");
+
+ fformat (stdout, "Allocate %d items...\n", tm->nitems);
+
+ for (i = 0; i < tm->nitems; i++)
+ {
+ u32 size = tm->item_size ? tm->item_size : 64 + 64 * (i % 8);
+ u32 align = tm->align ? tm->align : 64 << (i % 5);
+ u32 numa = i % (tm->max_numa + 1);
+ va = clib_pmalloc_alloc_aligned_on_numa (pm, size, align, numa);
+
+ if (va == 0)
+ clib_error ("Failed to alloc %u byte chunk with align %u on numa %u,"
+ "\nerror: %U", size, align, numa, format_clib_error,
+ clib_pmalloc_last_error (pm));
+
+ if ((pointer_to_uword (va) & (align - 1)) != 0)
+ clib_error (0, "Alignment error: %p not aligned with %u", va, align);
+
+ vec_add1 (tm->vas, pointer_to_uword (va));
+ }
+ fformat (stdout, "%U\n", format_pmalloc, pm, tm->verbose);
+
+ /* alloc from arena */
+ if (tm->arena_items)
+ {
+ fformat (stdout, "Allocate %d items from arena ...\n", tm->arena_items);
+ arena = clib_pmalloc_create_shared_arena (pm, "test arena",
+ tm->arena_pages << 21,
+ tm->arena_numa);
+ if (arena == 0)
+ clib_error ("Failed to alloc shared arena: %U", format_clib_error,
+ clib_pmalloc_last_error (pm));
+
+ for (i = 0; i < tm->arena_items; i++)
+ {
+ u32 size = tm->item_size ? tm->item_size : 64 + 64 * (i % 8);
+ u32 align = tm->align ? tm->align : 64 << (i % 5);
+ va = clib_pmalloc_alloc_from_arena (pm, arena, size, align);
+ vec_add1 (tm->vas, pointer_to_uword (va));
+ }
+ fformat (stdout, "\n%U\n", format_pmalloc, pm, tm->verbose);
+ }
+
+
+ fformat (stdout, "Freeing %d items ...\n", vec_len (tm->vas));
+ for (i = 0; i < vec_len (tm->vas); i++)
+ clib_pmalloc_free (pm, (void *) tm->vas[i]);
+
+ fformat (stdout, "\n%U\n", format_pmalloc, pm, tm->verbose);
+ return 0;
+}
+
+clib_error_t *
+test_palloc_main (unformat_input_t * i)
+{
+ test_main_t *tm = &test_main;
+ clib_error_t *error;
+
+ tm->nitems = 5;
+ tm->arena_pages = 2;
+ tm->arena_numa = CLIB_PMALLOC_NUMA_LOCAL;
+
+ while (unformat_check_input (i) != UNFORMAT_END_OF_INPUT)
+ {
+ if (unformat (i, "nitems %u", &tm->nitems))
+ ;
+ else if (unformat (i, "max-numa %u", &tm->max_numa))
+ ;
+ else if (unformat (i, "item-size %u", &tm->item_size))
+ ;
+ else if (unformat (i, "align %u", &tm->align))
+ ;
+ else if (unformat (i, "verbose %d", &tm->verbose))
+ ;
+ else if (unformat (i, "arena-pages %u", &tm->arena_pages))
+ ;
+ else if (unformat (i, "arena-numa %u", &tm->arena_numa))
+ ;
+ else if (unformat (i, "arena-items %u", &tm->arena_items))
+ ;
+ else if (unformat (i, "verbose"))
+ tm->verbose = 1;
+ else
+ return clib_error_return (0, "unknown input '%U'",
+ format_unformat_error, i);
+ }
+
+ error = test_palloc (tm);
+
+ return error;
+}
+
+#ifdef CLIB_UNIX
+int
+main (int argc, char *argv[])
+{
+ unformat_input_t i;
+ int rv = 0;
+ clib_error_t *error;
+
+ clib_mem_init (0, 3ULL << 30);
+
+ unformat_init_command_line (&i, argv);
+ error = test_palloc_main (&i);
+ if (error)
+ {
+ clib_error_report (error);
+ rv = 1;
+ }
+ unformat_free (&i);
+
+ return rv;
+}
+#endif /* CLIB_UNIX */
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */
Code Review / vpp.git / commitdiff