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Code Issues Releases Wiki Activity

remove some obsolete memory barries

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This commit is contained in:
Stefan Lankes 2016-07-05 12:33:59 +02:00
parent 11c32c5676
commit 25b360e589
1 changed files with 5 additions and 13 deletions
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18
hermit/drivers/net/mmnif.c
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@ -380,7 +380,6 @@ static size_t mmnif_rxbuff_alloc(uint8_t dest, uint16_t len)
}
}
}
mb();
islelock_unlock(isle_locks + (dest-1));
return ret;
@ -395,9 +394,6 @@ static int mmnif_commit_packet(uint8_t dest, uint32_t addr)
volatile mm_rx_buffer_t *rb = (mm_rx_buffer_t *) ((char *)header_start_address + (dest - 1) * header_size);
uint32_t i;
// be sure that the packet has been written
mb();
for (i = 0; i < MMNIF_MAX_DESCRIPTORS; i++)
{
if (rb->desc_table[i].addr == addr
@ -423,9 +419,6 @@ static void mmnif_rxbuff_free(void)
uint32_t rpos;
uint8_t flags;
// be sure that we receive all data
mb();
flags = irq_nested_disable();
islelock_lock(isle_locks + (isle+1));
rpos = b->dread;
@ -454,8 +447,6 @@ static void mmnif_rxbuff_free(void)
break;
}
mb();
islelock_unlock(isle_locks + (isle+1));
irq_nested_enable(flags);
}
@ -498,7 +489,7 @@ realloc:
for (q = p, i = 0; q != 0; q = q->next)
{
__builtin_memcpy((char*) write_address + i, q->payload, q->len);
memcpy((char*) write_address + i, q->payload, q->len);
i += q->len;
}
@ -512,13 +503,13 @@ realloc:
// hex_dump(p->tot_len, p->payload);
#endif
spinlock_irqsave_unlock(&locallock);
/* just gather some stats */
LINK_STATS_INC(link.xmit);
mmnif->stats.tx++;
mmnif->stats.tx_bytes += p->tot_len;
spinlock_irqsave_unlock(&locallock);
mmnif_trigger_irq(dest_ip);
return ERR_OK;
@ -804,7 +795,7 @@ anotherpacket:
/* copy packet to pbuf structure going through linked list */
for (q = p, i = 0; q != NULL; q = q->next)
{
__builtin_memcpy((uint8_t *) q->payload, packet + i, q->len);
memcpy((uint8_t *) q->payload, packet + i, q->len);
i += q->len;
}
@ -812,6 +803,7 @@ anotherpacket:
* note that we did not lock here because we are the only one editing this value
*/
mmnif->rx_buff->desc_table[rdesc].stat = MMNIF_STATUS_PROC;
mb();
/* everything is copied to a new buffer so it's save to release
* the old one for new incoming packets