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-rw-r--r--src/plugins/avf/avf.h24
-rw-r--r--src/plugins/avf/format.c9
-rw-r--r--src/plugins/avf/input.c153
3 files changed, 86 insertions, 100 deletions
diff --git a/src/plugins/avf/avf.h b/src/plugins/avf/avf.h
index ecd67802b15..030f05ec934 100644
--- a/src/plugins/avf/avf.h
+++ b/src/plugins/avf/avf.h
@@ -22,6 +22,17 @@
#include <vlib/log.h>
+#define AVF_RXD_STATUS(x) (1ULL << x)
+#define AVF_RXD_STATUS_DD AVF_RXD_STATUS(0)
+#define AVF_RXD_STATUS_EOP AVF_RXD_STATUS(1)
+#define AVF_RXD_ERROR_SHIFT 19
+#define AVF_RXD_PTYPE_SHIFT 30
+#define AVF_RXD_LEN_SHIFT 38
+
+#define AVF_RXD_ERROR_IPE (1ULL << (AVF_RXD_ERROR_SHIFT + 3))
+#define AVF_RXD_ERROR_L4E (1ULL << (AVF_RXD_ERROR_SHIFT + 4))
+
+
#define foreach_avf_device_flags \
_(0, INITIALIZED, "initialized") \
_(1, ERROR, "error") \
@@ -147,16 +158,6 @@ typedef struct
clib_error_t *error;
} avf_device_t;
-typedef struct
-{
- u32 status;
- u16 length;
- u8 ptype;
- u8 error;
-} avf_rx_vector_entry_t;
-
-STATIC_ASSERT_SIZEOF (avf_rx_vector_entry_t, 8);
-
#define AVF_RX_VECTOR_SZ VLIB_FRAME_SIZE
enum
@@ -169,7 +170,6 @@ enum
typedef struct
{
CLIB_CACHE_LINE_ALIGN_MARK (cacheline0);
- avf_rx_vector_entry_t rx_vector[AVF_RX_VECTOR_SZ];
u32 *to_free;
vlib_buffer_t buffer_template;
} avf_per_thread_data_t;
@@ -274,7 +274,7 @@ typedef struct
{
u32 next_index;
u32 hw_if_index;
- avf_rx_vector_entry_t rxve;
+ u64 qw1;
} avf_input_trace_t;
#define foreach_avf_tx_func_error \
diff --git a/src/plugins/avf/format.c b/src/plugins/avf/format.c
index ed99e5861c8..923f2a2473a 100644
--- a/src/plugins/avf/format.c
+++ b/src/plugins/avf/format.c
@@ -128,14 +128,17 @@ format_avf_input_trace (u8 * s, va_list * args)
vnet_main_t *vnm = vnet_get_main ();
vnet_hw_interface_t *hi = vnet_get_hw_interface (vnm, t->hw_if_index);
u32 indent = format_get_indent (s);
- avf_rx_vector_entry_t *rxve = &t->rxve;
s = format (s, "avf: %v (%d) next-node %U",
hi->name, t->hw_if_index, format_vlib_next_node_name, vm,
node->index, t->next_index);
+
s = format (s, "\n%Ustatus 0x%x error 0x%x ptype 0x%x length %u",
- format_white_space, indent + 2, rxve->status, rxve->error,
- rxve->ptype, rxve->length);
+ format_white_space, indent + 2,
+ t->qw1 & pow2_mask (19),
+ (t->qw1 >> AVF_RXD_ERROR_SHIFT) & pow2_mask (8),
+ (t->qw1 >> AVF_RXD_PTYPE_SHIFT) & pow2_mask (8),
+ (t->qw1 >> AVF_RXD_LEN_SHIFT));
return s;
}
diff --git a/src/plugins/avf/input.c b/src/plugins/avf/input.c
index d8202d54faf..94854af5564 100644
--- a/src/plugins/avf/input.c
+++ b/src/plugins/avf/input.c
@@ -41,10 +41,6 @@ static __clib_unused char *avf_input_error_strings[] = {
#undef _
};
-#define AVF_RX_DESC_STATUS(x) (1 << x)
-#define AVF_RX_DESC_STATUS_DD AVF_RX_DESC_STATUS(0)
-#define AVF_RX_DESC_STATUS_EOP AVF_RX_DESC_STATUS(1)
-
#define AVF_INPUT_REFILL_TRESHOLD 32
static_always_inline void
@@ -134,14 +130,14 @@ avf_rxq_refill (vlib_main_t * vm, vlib_node_runtime_t * node, avf_rxq_t * rxq,
static_always_inline uword
avf_process_rx_burst (vlib_main_t * vm, vlib_node_runtime_t * node,
- vlib_buffer_t * bt, avf_rx_vector_entry_t * rxve,
- vlib_buffer_t ** b, u32 n_rxv)
+ vlib_buffer_t * bt, u64 * qw1,
+ vlib_buffer_t ** b, u32 n_left)
{
uword n_rx_bytes = 0;
- while (n_rxv >= 4)
+ while (n_left >= 4)
{
- if (n_rxv >= 12)
+ if (n_left >= 12)
{
vlib_prefetch_buffer_header (b[8], LOAD);
vlib_prefetch_buffer_header (b[9], LOAD);
@@ -149,10 +145,10 @@ avf_process_rx_burst (vlib_main_t * vm, vlib_node_runtime_t * node,
vlib_prefetch_buffer_header (b[11], LOAD);
}
- n_rx_bytes += b[0]->current_length = rxve[0].length;
- n_rx_bytes += b[1]->current_length = rxve[1].length;
- n_rx_bytes += b[2]->current_length = rxve[2].length;
- n_rx_bytes += b[3]->current_length = rxve[3].length;
+ n_rx_bytes += b[0]->current_length = qw1[0] >> AVF_RXD_LEN_SHIFT;
+ n_rx_bytes += b[1]->current_length = qw1[1] >> AVF_RXD_LEN_SHIFT;
+ n_rx_bytes += b[2]->current_length = qw1[2] >> AVF_RXD_LEN_SHIFT;
+ n_rx_bytes += b[3]->current_length = qw1[3] >> AVF_RXD_LEN_SHIFT;
clib_memcpy_fast (vnet_buffer (b[0])->sw_if_index,
vnet_buffer (bt)->sw_if_index, 2 * sizeof (u32));
@@ -169,14 +165,13 @@ avf_process_rx_burst (vlib_main_t * vm, vlib_node_runtime_t * node,
VLIB_BUFFER_TRACE_TRAJECTORY_INIT (b[3]);
/* next */
- rxve += 4;
+ qw1 += 4;
b += 4;
- n_rxv -= 4;
+ n_left -= 4;
}
- while (n_rxv)
+ while (n_left)
{
- b[0]->current_length = rxve->length;
- n_rx_bytes += b[0]->current_length;
+ n_rx_bytes += b[0]->current_length = qw1[0] >> AVF_RXD_LEN_SHIFT;
clib_memcpy_fast (vnet_buffer (b[0])->sw_if_index,
vnet_buffer (bt)->sw_if_index, 2 * sizeof (u32));
@@ -184,9 +179,9 @@ avf_process_rx_burst (vlib_main_t * vm, vlib_node_runtime_t * node,
VLIB_BUFFER_TRACE_TRAJECTORY_INIT (b[0]);
/* next */
- rxve += 1;
+ qw1 += 1;
b += 1;
- n_rxv -= 1;
+ n_left -= 1;
}
return n_rx_bytes;
}
@@ -201,27 +196,26 @@ avf_device_input_inline (vlib_main_t * vm, vlib_node_runtime_t * node,
avf_per_thread_data_t *ptd =
vec_elt_at_index (am->per_thread_data, thr_idx);
avf_rxq_t *rxq = vec_elt_at_index (ad->rxqs, qid);
- avf_rx_vector_entry_t *rxve = 0;
- uword n_trace;
- avf_rx_desc_t *d;
- u32 n_rx_packets = 0, n_rx_bytes = 0;
- u16 mask = rxq->size - 1;
- u16 n_rxv = 0;
- u8 or_error = 0;
+ u32 n_trace, n_rx_packets = 0, n_rx_bytes = 0;
+ u16 n_desc = 0;
+ u64 or_qw1 = 0;
u32 *bi, *to_next, n_left_to_next;
vlib_buffer_t *bufs[AVF_RX_VECTOR_SZ];
vlib_buffer_t *bt = &ptd->buffer_template;
u32 next_index = VNET_DEVICE_INPUT_NEXT_ETHERNET_INPUT;
-
- STATIC_ASSERT_SIZEOF (avf_rx_vector_entry_t, 8);
- STATIC_ASSERT_OFFSET_OF (avf_rx_vector_entry_t, status, 0);
- STATIC_ASSERT_OFFSET_OF (avf_rx_vector_entry_t, length, 4);
- STATIC_ASSERT_OFFSET_OF (avf_rx_vector_entry_t, ptype, 6);
- STATIC_ASSERT_OFFSET_OF (avf_rx_vector_entry_t, error, 7);
+ u64 qw1s[AVF_RX_VECTOR_SZ];
+ u16 next = rxq->next;
+ u16 size = rxq->size;
+ u16 mask = size - 1;
+ avf_rx_desc_t *d, *fd = rxq->descs;
+#ifdef CLIB_HAVE_VEC256
+ u64x4 q1x4, or_q1x4 = { 0 };
+ u64x4 dd_eop_mask4 = u64x4_splat (AVF_RXD_STATUS_DD | AVF_RXD_STATUS_EOP);
+#endif
/* is there anything on the ring */
- d = rxq->descs + rxq->next;
- if ((d->qword[1] & AVF_RX_DESC_STATUS_DD) == 0)
+ d = fd + next;
+ if ((d->qword[1] & AVF_RXD_STATUS_DD) == 0)
goto done;
if (PREDICT_FALSE (ad->per_interface_next_index != ~0))
@@ -231,109 +225,96 @@ avf_device_input_inline (vlib_main_t * vm, vlib_node_runtime_t * node,
/* fetch up to AVF_RX_VECTOR_SZ from the rx ring, unflatten them and
copy needed data from descriptor to rx vector */
bi = to_next;
- while (n_rxv < AVF_RX_VECTOR_SZ)
+
+ while (n_desc < AVF_RX_VECTOR_SZ)
{
- if (rxq->next + 11 < rxq->size)
+ if (next + 11 < size)
{
int stride = 8;
- CLIB_PREFETCH ((void *) (rxq->descs + (rxq->next + stride)),
+ CLIB_PREFETCH ((void *) (fd + (next + stride)),
CLIB_CACHE_LINE_BYTES, LOAD);
- CLIB_PREFETCH ((void *) (rxq->descs + (rxq->next + stride + 1)),
+ CLIB_PREFETCH ((void *) (fd + (next + stride + 1)),
CLIB_CACHE_LINE_BYTES, LOAD);
- CLIB_PREFETCH ((void *) (rxq->descs + (rxq->next + stride + 2)),
+ CLIB_PREFETCH ((void *) (fd + (next + stride + 2)),
CLIB_CACHE_LINE_BYTES, LOAD);
- CLIB_PREFETCH ((void *) (rxq->descs + (rxq->next + stride + 3)),
+ CLIB_PREFETCH ((void *) (fd + (next + stride + 3)),
CLIB_CACHE_LINE_BYTES, LOAD);
}
#ifdef CLIB_HAVE_VEC256
- u64x4 q1x4, v, err4;
- u64x4 status_dd_eop_mask = u64x4_splat (0x3);
-
- if (n_rxv >= AVF_RX_VECTOR_SZ - 4)
- goto one_by_one;
-
- if (rxq->next >= rxq->size - 4)
+ if (n_desc >= AVF_RX_VECTOR_SZ - 4 || next >= size - 4)
goto one_by_one;
q1x4 = u64x4_gather ((void *) &d[0].qword[1], (void *) &d[1].qword[1],
(void *) &d[2].qword[1], (void *) &d[3].qword[1]);
/* not all packets are ready or at least one of them is chained */
- if (!u64x4_is_equal (q1x4 & status_dd_eop_mask, status_dd_eop_mask))
+ if (!u64x4_is_equal (q1x4 & dd_eop_mask4, dd_eop_mask4))
goto one_by_one;
- /* shift and mask status, length, ptype and err */
- v = q1x4 & u64x4_splat ((u64) 0x3FFFFULL);
- v |= (q1x4 >> 6) & u64x4_splat ((u64) 0xFFFF << 32);
- v |= (q1x4 << 18) & u64x4_splat ((u64) 0xFF << 48);
- v |= err4 = (q1x4 << 37) & u64x4_splat ((u64) 0xFF << 56);
-
- u64x4_store_unaligned (v, ptd->rx_vector + n_rxv);
-
- if (!u64x4_is_all_zero (err4))
- or_error |= err4[0] | err4[1] | err4[2] | err4[3];
-
- clib_memcpy_fast (bi, rxq->bufs + rxq->next, 4 * sizeof (u32));
+ or_q1x4 |= q1x4;
+ u64x4_store_unaligned (q1x4, qw1s + n_desc);
+ clib_memcpy_fast (bi, rxq->bufs + next, 4 * sizeof (u32));
/* next */
- rxq->next = (rxq->next + 4) & mask;
- d = rxq->descs + rxq->next;
- n_rxv += 4;
- rxq->n_enqueued -= 4;
+ next = (next + 4) & mask;
+ d = fd + next;
+ n_desc += 4;
bi += 4;
continue;
one_by_one:
#endif
- CLIB_PREFETCH ((void *) (rxq->descs + ((rxq->next + 8) & mask)),
+ CLIB_PREFETCH ((void *) (fd + ((next + 8) & mask)),
CLIB_CACHE_LINE_BYTES, LOAD);
- if ((d->qword[1] & AVF_RX_DESC_STATUS_DD) == 0)
+ if ((d->qword[1] & AVF_RXD_STATUS_DD) == 0)
break;
- rxve = ptd->rx_vector + n_rxv;
- bi[0] = rxq->bufs[rxq->next];
- rxve->status = avf_get_u64_bits ((void *) d, 8, 18, 0);
- rxve->error = avf_get_u64_bits ((void *) d, 8, 26, 19);
- rxve->ptype = avf_get_u64_bits ((void *) d, 8, 37, 30);
- rxve->length = avf_get_u64_bits ((void *) d, 8, 63, 38);
- or_error |= rxve->error;
+
+ or_qw1 |= qw1s[n_desc] = d[0].qword[1];
+ bi[0] = rxq->bufs[next];
/* deal with chained buffers */
- while (PREDICT_FALSE ((d->qword[1] & AVF_RX_DESC_STATUS_EOP) == 0))
+ while (PREDICT_FALSE ((d->qword[1] & AVF_RXD_STATUS_EOP) == 0))
{
clib_error ("fixme");
}
/* next */
- rxq->next = (rxq->next + 1) & mask;
- d = rxq->descs + rxq->next;
- n_rxv++;
- rxq->n_enqueued--;
+ next = (next + 1) & mask;
+ d = fd + next;
+ n_desc++;
bi++;
}
- if (n_rxv == 0)
+ if (n_desc == 0)
goto done;
+ rxq->next = next;
+ rxq->n_enqueued -= n_desc;
+
+#ifdef CLIB_HAVE_VEC256
+ or_qw1 |= or_q1x4[0] | or_q1x4[1] | or_q1x4[2] | or_q1x4[3];
+#endif
+
/* refill rx ring */
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_va_dma */ );
- vlib_get_buffers (vm, to_next, bufs, n_rxv);
- n_rx_packets = n_rxv;
+ vlib_get_buffers (vm, to_next, bufs, n_desc);
+ n_rx_packets = n_desc;
vnet_buffer (bt)->sw_if_index[VLIB_RX] = ad->sw_if_index;
vnet_buffer (bt)->sw_if_index[VLIB_TX] = ~0;
- n_rx_bytes = avf_process_rx_burst (vm, node, bt, ptd->rx_vector, bufs,
- n_rxv);
+ n_rx_bytes = avf_process_rx_burst (vm, node, bt, qw1s, bufs, n_desc);
/* packet trace if enabled */
if (PREDICT_FALSE ((n_trace = vlib_get_trace_count (vm, node))))
{
u32 n_left = n_rx_packets;
bi = to_next;
+ u64 *qw1 = qw1s;
while (n_trace && n_left)
{
vlib_buffer_t *b;
@@ -343,12 +324,13 @@ avf_device_input_inline (vlib_main_t * vm, vlib_node_runtime_t * node,
tr = vlib_add_trace (vm, node, b, sizeof (*tr));
tr->next_index = next_index;
tr->hw_if_index = ad->hw_if_index;
- clib_memcpy_fast (&tr->rxve, rxve, sizeof (avf_rx_vector_entry_t));
+ tr->qw1 = qw1[0];
/* next */
n_trace--;
n_left--;
bi++;
+ qw1++;
}
vlib_set_trace_count (vm, node, n_trace);
}
@@ -366,9 +348,10 @@ avf_device_input_inline (vlib_main_t * vm, vlib_node_runtime_t * node,
ef->sw_if_index = ad->sw_if_index;
ef->hw_if_index = ad->hw_if_index;
- if ((or_error & (1 << 3)) == 0)
+ if ((or_qw1 & AVF_RXD_ERROR_IPE) == 0)
f->flags |= ETH_INPUT_FRAME_F_IP4_CKSUM_OK;
}
+
n_left_to_next -= n_rx_packets;
vlib_put_next_frame (vm, node, next_index, n_left_to_next);