mirror of
https://github.com/torvalds/linux.git
synced 2024-12-16 08:02:17 +00:00
f36e1793e2
Add support for sending and receiving large RMPP transfers. The old code supports transfers only as large as a single contiguous kernel memory allocation. This patch uses linked list of memory buffers when sending and receiving data to avoid needing contiguous pages for larger transfers. Receive side: copy the arriving MADs in chunks instead of coalescing to one large buffer in kernel space. Send side: split a multipacket MAD buffer to a list of segments, (multipacket_list) and send these using a gather list of size 2. Also, save pointer to last sent segment, and retrieve requested segments by walking list starting at last sent segment. Finally, save pointer to last-acked segment. When retrying, retrieve segments for resending relative to this pointer. When updating last ack, start at this pointer. Signed-off-by: Jack Morgenstein <jackm@mellanox.co.il> Signed-off-by: Sean Hefty <sean.hefty@intel.com> Signed-off-by: Roland Dreier <rolandd@cisco.com> |
||
|---|---|---|
| .. | ||
| ib_cache.h | ||
| ib_cm.h | ||
| ib_fmr_pool.h | ||
| ib_mad.h | ||
| ib_pack.h | ||
| ib_sa.h | ||
| ib_smi.h | ||
| ib_user_cm.h | ||
| ib_user_mad.h | ||
| ib_user_verbs.h | ||
| ib_verbs.h | ||