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authorLinus Torvalds <torvalds@linux-foundation.org>2018-08-24 01:34:48 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2018-08-24 01:34:48 +0300
commit1290290c922fdcefbce8984e6e44b8f4e3a169b5 (patch)
tree524aaccde6f59f6bcddb376c7301d94424465d72 /drivers/infiniband
parent706a1ea65e6faaf853427a0e931f59d604dd45e3 (diff)
parent845b397a7771f2d3504beff5521f452be0d22eec (diff)
downloadlinux-1290290c922fdcefbce8984e6e44b8f4e3a169b5.tar.xz
Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma
Pull more rdma updates from Jason Gunthorpe: "This is the SMC cleanup promised, a randconfig regression fix, and kernel oops fix. Summary: - Switch SMC over to rdma_get_gid_attr and remove the compat - Fix a crash in HFI1 with some BIOS's - Fix a randconfig failure" * tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: IB/ucm: fix UCM link error IB/hfi1: Invalid NUMA node information can cause a divide by zero RDMA/smc: Replace ib_query_gid with rdma_get_gid_attr
Diffstat (limited to 'drivers/infiniband')
-rw-r--r--drivers/infiniband/Kconfig2
-rw-r--r--drivers/infiniband/hw/hfi1/affinity.c24
2 files changed, 22 insertions, 4 deletions
diff --git a/drivers/infiniband/Kconfig b/drivers/infiniband/Kconfig
index d160d2d1f3a3..abb6660c099c 100644
--- a/drivers/infiniband/Kconfig
+++ b/drivers/infiniband/Kconfig
@@ -36,7 +36,7 @@ config INFINIBAND_USER_ACCESS
rdma-core <https://github.com/linux-rdma/rdma-core>.
config INFINIBAND_USER_ACCESS_UCM
- bool "Userspace CM (UCM, DEPRECATED)"
+ tristate "Userspace CM (UCM, DEPRECATED)"
depends on BROKEN || COMPILE_TEST
depends on INFINIBAND_USER_ACCESS
help
diff --git a/drivers/infiniband/hw/hfi1/affinity.c b/drivers/infiniband/hw/hfi1/affinity.c
index fbe7198a715a..bedd5fba33b0 100644
--- a/drivers/infiniband/hw/hfi1/affinity.c
+++ b/drivers/infiniband/hw/hfi1/affinity.c
@@ -198,7 +198,7 @@ int node_affinity_init(void)
while ((dev = pci_get_device(ids->vendor, ids->device, dev))) {
node = pcibus_to_node(dev->bus);
if (node < 0)
- node = numa_node_id();
+ goto out;
hfi1_per_node_cntr[node]++;
}
@@ -206,6 +206,18 @@ int node_affinity_init(void)
}
return 0;
+
+out:
+ /*
+ * Invalid PCI NUMA node information found, note it, and populate
+ * our database 1:1.
+ */
+ pr_err("HFI: Invalid PCI NUMA node. Performance may be affected\n");
+ pr_err("HFI: System BIOS may need to be upgraded\n");
+ for (node = 0; node < node_affinity.num_possible_nodes; node++)
+ hfi1_per_node_cntr[node] = 1;
+
+ return 0;
}
static void node_affinity_destroy(struct hfi1_affinity_node *entry)
@@ -622,8 +634,14 @@ int hfi1_dev_affinity_init(struct hfi1_devdata *dd)
int curr_cpu, possible, i, ret;
bool new_entry = false;
- if (node < 0)
- node = numa_node_id();
+ /*
+ * If the BIOS does not have the NUMA node information set, select
+ * NUMA 0 so we get consistent performance.
+ */
+ if (node < 0) {
+ dd_dev_err(dd, "Invalid PCI NUMA node. Performance may be affected\n");
+ node = 0;
+ }
dd->node = node;
local_mask = cpumask_of_node(dd->node);