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freebsd_network: Retry dmamap loads with a bounce buffer in more cases.

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Instead of just on ERANGE, also do it for EFBIG and other such errors.

Related to #17763 and #17766.
This commit is contained in:
Augustin Cavalier 2022-06-03 13:13:14 -04:00
parent 4eac62eb9f
commit 15253c90c3
1 changed files with 5 additions and 5 deletions
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10
src/libs/compat/freebsd_network/bus_dma.cpp
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@ -339,9 +339,6 @@ _bus_load_buffer(bus_dma_tag_t dmat, void* buf, bus_size_t buflen,
bus_addr_t last_phys_addr = *lastaddrp;
const bus_addr_t boundary_mask = ~(dmat->boundary - 1);
if (buflen > dmat->maxsize)
return EINVAL;
while (buflen > 0) {
const bus_addr_t phys_addr = pmap_kextract(virtual_addr);
if (!_validate_address(dmat, phys_addr))
@ -399,10 +396,13 @@ bus_dmamap_load(bus_dma_tag_t dmat, bus_dmamap_t map, void *buf,
bus_addr_t lastaddr = 0;
int error, nsegs = 0;
if (buflen > dmat->maxsize)
return EINVAL;
error = _bus_load_buffer(dmat, buf, buflen, flags,
&lastaddr, map->segments, nsegs, true);
if (error == ERANGE) {
if (error != 0) {
// Try again using a bounce buffer.
error = _prepare_bounce_buffer(map, buflen, flags);
if (error != 0)
@ -450,7 +450,7 @@ bus_dmamap_load_mbuf_sg(bus_dma_tag_t dmat, bus_dmamap_t map, struct mbuf* mb,
first = false;
}
if (error == ERANGE) {
if (error != 0) {
// Try again using a bounce buffer.
error = _prepare_bounce_buffer(map, mb->m_pkthdr.len, flags);
if (error != 0)