6.6-stable review patch. If anyone has any objections, please let me know.
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From: Zhu Yanjun yanjun.zhu@linux.dev
[ Upstream commit 8ce2eb9dfac8743d1c423b86339336a5b6a6069e ]
In rdma-core, the following failures appear.
" $ ./build/bin/run_tests.py -k device ssssssss....FF........s ====================================================================== FAIL: test_query_device (tests.test_device.DeviceTest.test_query_device) Test ibv_query_device() ---------------------------------------------------------------------- Traceback (most recent call last): File "/home/ubuntu/rdma-core/tests/test_device.py", line 63, in test_query_device self.verify_device_attr(attr, dev) File "/home/ubuntu/rdma-core/tests/test_device.py", line 200, in verify_device_attr assert attr.sys_image_guid != 0 ^^^^^^^^^^^^^^^^^^^^^^^^ AssertionError
====================================================================== FAIL: test_query_device_ex (tests.test_device.DeviceTest.test_query_device_ex) Test ibv_query_device_ex() ---------------------------------------------------------------------- Traceback (most recent call last): File "/home/ubuntu/rdma-core/tests/test_device.py", line 222, in test_query_device_ex self.verify_device_attr(attr_ex.orig_attr, dev) File "/home/ubuntu/rdma-core/tests/test_device.py", line 200, in verify_device_attr assert attr.sys_image_guid != 0 ^^^^^^^^^^^^^^^^^^^^^^^^ AssertionError "
The root cause is: before a net device is set with rxe, this net device is used to generate a sys_image_guid.
Fixes: 2ac5415022d1 ("RDMA/rxe: Remove the direct link to net_device") Signed-off-by: Zhu Yanjun yanjun.zhu@linux.dev Link: https://patch.msgid.link/20250302215444.3742072-1-yanjun.zhu@linux.dev Reviewed-by: Daisuke Matsuda matsuda-daisuke@fujitsu.com Tested-by: Daisuke Matsuda matsuda-daisuke@fujitsu.com Signed-off-by: Leon Romanovsky leon@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org [Shivani: Modified to apply on 6.6.y] Signed-off-by: Shivani Agarwal shivani.agarwal@broadcom.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/infiniband/sw/rxe/rxe.c | 25 ++++++------------------- 1 file changed, 6 insertions(+), 19 deletions(-)
--- a/drivers/infiniband/sw/rxe/rxe.c +++ b/drivers/infiniband/sw/rxe/rxe.c @@ -38,10 +38,8 @@ void rxe_dealloc(struct ib_device *ib_de }
/* initialize rxe device parameters */ -static void rxe_init_device_param(struct rxe_dev *rxe) +static void rxe_init_device_param(struct rxe_dev *rxe, struct net_device *ndev) { - struct net_device *ndev; - rxe->max_inline_data = RXE_MAX_INLINE_DATA;
rxe->attr.vendor_id = RXE_VENDOR_ID; @@ -74,15 +72,9 @@ static void rxe_init_device_param(struct rxe->attr.max_pkeys = RXE_MAX_PKEYS; rxe->attr.local_ca_ack_delay = RXE_LOCAL_CA_ACK_DELAY;
- ndev = rxe_ib_device_get_netdev(&rxe->ib_dev); - if (!ndev) - return; - addrconf_addr_eui48((unsigned char *)&rxe->attr.sys_image_guid, ndev->dev_addr);
- dev_put(ndev); - rxe->max_ucontext = RXE_MAX_UCONTEXT; }
@@ -115,18 +107,13 @@ static void rxe_init_port_param(struct r /* initialize port state, note IB convention that HCA ports are always * numbered from 1 */ -static void rxe_init_ports(struct rxe_dev *rxe) +static void rxe_init_ports(struct rxe_dev *rxe, struct net_device *ndev) { struct rxe_port *port = &rxe->port; - struct net_device *ndev;
rxe_init_port_param(port); - ndev = rxe_ib_device_get_netdev(&rxe->ib_dev); - if (!ndev) - return; addrconf_addr_eui48((unsigned char *)&port->port_guid, ndev->dev_addr); - dev_put(ndev); spin_lock_init(&port->port_lock); }
@@ -144,12 +131,12 @@ static void rxe_init_pools(struct rxe_de }
/* initialize rxe device state */ -static void rxe_init(struct rxe_dev *rxe) +static void rxe_init(struct rxe_dev *rxe, struct net_device *ndev) { /* init default device parameters */ - rxe_init_device_param(rxe); + rxe_init_device_param(rxe, ndev);
- rxe_init_ports(rxe); + rxe_init_ports(rxe, ndev); rxe_init_pools(rxe);
/* init pending mmap list */ @@ -186,7 +173,7 @@ void rxe_set_mtu(struct rxe_dev *rxe, un int rxe_add(struct rxe_dev *rxe, unsigned int mtu, const char *ibdev_name, struct net_device *ndev) { - rxe_init(rxe); + rxe_init(rxe, ndev); rxe_set_mtu(rxe, mtu);
return rxe_register_device(rxe, ibdev_name, ndev);