[<prev] [next>] [thread-next>] [day] [month] [year] [list]
Message-Id: <20231207192907.10113-1-rpearsonhpe@gmail.com>
Date: Thu, 7 Dec 2023 13:29:01 -0600
From: Bob Pearson <rpearsonhpe@...il.com>
To: jgg@...dia.com,
yanjun.zhu@...ux.dev,
linux-rdma@...r.kernel.org,
netdev@...r.kernel.org,
dsahern@...nel.org,
rain.1986.08.12@...il.com
Cc: Bob Pearson <rpearsonhpe@...il.com>
Subject: [PATCH for-next v6 0/7] RDMA/rxe: Make multicast work
After developing a test program which exercises node to node
testing of RoCE multicast it became clear that there are a
number of issues with the current rdma_rxe multicast implementation.
The issues seen include:
- There is no support for IPV4 multicast addresses.
- Once a multicast MAC is added it is not removed.
- Multicast packets are sent with the wrong QP number.
- Multicast IP addresses are not created and without
them no multicast packets received on the interface
are delivered to the rdma_rxe driver.
- The implementation in rxe_mcast.c is potentially
racy if multiple simultaneous attach/detach operations
are issued.
This patch set fixes these issues.
Copied to the netdev list. Please review patch 3/7 which interfaces
with the netdev stack to create the IP mcast endpoints that
support the RDMA mcast endpoints.
---
v6:
Replace spin_(un)lock_bh(&sk->sk_lock.slock) by lock(release)_sock(sk)
to address comment by Rain River.
v5:
Missed previous fix in error path. Add sock lock around
ipv6_sock_mm_drop() in rxe_mcast_add6().
v4:
Corrected a lockdep bug reported by Zhu Yanjun.
v3:
Removed rxe_loop_and_send(). It turns out it is not needed.
Added module parameters to set mcast limits to small values when
driver is loaded to enable mcast limit testing.
Rebased to current for-next branch.
v2:
Respond to comments by Zhu.
Added more Fixes lines.
Added some more explanation in the commit messages.
Fixed an error in rxe_lookup_mcg. Should have checked
the return from rxe_get_mcg().
Bob Pearson (7):
RDMA/rxe: Cleanup rxe_ah/av_chk_attr
RDMA/rxe: Fix sending of mcast packets
RDMA/rxe: Register IP mcast address
RDMA/rxe: Let rxe_lookup_mcg use rcu_read_lock
RDMA/rxe: Split multicast lock
RDMA/rxe: Cleanup mcg lifetime
RDMA/rxe: Add module parameters for mcast limits
drivers/infiniband/sw/rxe/Makefile | 3 +-
drivers/infiniband/sw/rxe/rxe.c | 8 +-
drivers/infiniband/sw/rxe/rxe_av.c | 50 +--
drivers/infiniband/sw/rxe/rxe_loc.h | 6 +-
drivers/infiniband/sw/rxe/rxe_mcast.c | 526 +++++++++++--------------
drivers/infiniband/sw/rxe/rxe_net.c | 6 +-
drivers/infiniband/sw/rxe/rxe_net.h | 1 +
drivers/infiniband/sw/rxe/rxe_opcode.h | 2 +-
drivers/infiniband/sw/rxe/rxe_param.c | 23 ++
drivers/infiniband/sw/rxe/rxe_param.h | 4 +
drivers/infiniband/sw/rxe/rxe_qp.c | 4 +-
drivers/infiniband/sw/rxe/rxe_recv.c | 11 +-
drivers/infiniband/sw/rxe/rxe_req.c | 11 +-
drivers/infiniband/sw/rxe/rxe_verbs.c | 5 +-
drivers/infiniband/sw/rxe/rxe_verbs.h | 5 +-
15 files changed, 305 insertions(+), 360 deletions(-)
create mode 100644 drivers/infiniband/sw/rxe/rxe_param.c
--
2.40.1
Powered by blists - more mailing lists