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| author | Lijun Ou <oulijun@huawei.com> | 2016-09-20 17:07:07 +0100 |
|---|---|---|
| committer | Doug Ledford <dledford@redhat.com> | 2016-10-03 11:43:15 -0400 |
| commit | cb814642e7e3e67f6a7c24b14531e95ccdb7c3cc (patch) | |
| tree | 1cc72962df9349143a050804da960f2231d2c2b2 /drivers | |
| parent | 7c7a4ea145a5dc914402678d0299a81c3f5b38b6 (diff) | |
| download | linux-stable-cb814642e7e3e67f6a7c24b14531e95ccdb7c3cc.tar.gz linux-stable-cb814642e7e3e67f6a7c24b14531e95ccdb7c3cc.tar.bz2 linux-stable-cb814642e7e3e67f6a7c24b14531e95ccdb7c3cc.zip | |
IB/hns: Validate mtu when modified qp
The mtu should be validated when modify qp,so we check it.
Signed-off-by: Lijun Ou <oulijun@huawei.com>
Signed-off-by: Peter Chen <luck.chen@huawei.com>
Reviewed-by: Wei Hu (Xavier) <xavier.huwei@huawei.com>
Signed-off-by: Salil Mehta <salil.mehta@huawei.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/infiniband/hw/hns/hns_roce_qp.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/hns/hns_roce_qp.c b/drivers/infiniband/hw/hns/hns_roce_qp.c index dd1b2140d8db..6a38909929cd 100644 --- a/drivers/infiniband/hw/hns/hns_roce_qp.c +++ b/drivers/infiniband/hw/hns/hns_roce_qp.c @@ -32,6 +32,7 @@ */ #include <linux/platform_device.h> +#include <rdma/ib_addr.h> #include <rdma/ib_umem.h> #include "hns_roce_common.h" #include "hns_roce_device.h" @@ -657,6 +658,7 @@ int hns_roce_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, struct device *dev = &hr_dev->pdev->dev; int ret = -EINVAL; int p; + enum ib_mtu active_mtu; mutex_lock(&hr_qp->mutex); @@ -687,6 +689,19 @@ int hns_roce_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, } } + if (attr_mask & IB_QP_PATH_MTU) { + p = attr_mask & IB_QP_PORT ? (attr->port_num - 1) : hr_qp->port; + active_mtu = iboe_get_mtu(hr_dev->iboe.netdevs[p]->mtu); + + if (attr->path_mtu > IB_MTU_2048 || + attr->path_mtu < IB_MTU_256 || + attr->path_mtu > active_mtu) { + dev_err(dev, "attr path_mtu(%d)invalid while modify qp", + attr->path_mtu); + goto out; + } + } + if (attr_mask & IB_QP_MAX_QP_RD_ATOMIC && attr->max_rd_atomic > hr_dev->caps.max_qp_init_rdma) { dev_err(dev, "attr max_rd_atomic invalid.attr->max_rd_atomic=%d\n", |