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| author |   Sebastian Sanchez <sebastian.sanchez@intel.com> | 2016-04-12 11:22:21 -0700 |
|---|---|---|
| committer |   Doug Ledford <dledford@redhat.com> | 2016-04-28 16:32:27 -0400 |
| commit | e38d1e4f5099d533a833afee89f439853c94f272 (patch) | |
| tree | 8d0b28f3d63f0fe5be61b80f5c21c662a16fc252 /drivers/staging/rdma/hfi1/chip.c | |
| parent | IB/hfi1: Adjust default MTU to be 10KB (diff) | |
| download | linux-dev-e38d1e4f5099d533a833afee89f439853c94f272.tar.xz linux-dev-e38d1e4f5099d533a833afee89f439853c94f272.zip | |
IB/hfi1: Check P_KEY for all sent packets from user mode
Add the P_KEY check for user-context mechanism for
both PIO and SDMA. For PIO, the
SendCtxtCheckEnable.DisallowKDETHPackets is set by
default. When the P_KEY is set,
SendCtxtCheckEnable.DisallowKDETHPackets is cleared.
For SDMA, a software check was included. This change
requires user processes to set the P_KEY before sending
any packets, otherwise, the sent packet will fail. The
original submission didn't have this check but it's
required.
Reviewed-by: Dean Luick <dean.luick@intel.com>
Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Reviewed-by: Mikto Haralanov <mitko.haralanov@intel.com>
Signed-off-by: Sebastian Sanchez <sebastian.sanchez@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'drivers/staging/rdma/hfi1/chip.c')
| -rw-r--r-- | drivers/staging/rdma/hfi1/chip.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/staging/rdma/hfi1/chip.c b/drivers/staging/rdma/hfi1/chip.c index 56753c65b614..b0a0a0d2cbad 100644 --- a/drivers/staging/rdma/hfi1/chip.c +++ b/drivers/staging/rdma/hfi1/chip.c @@ -13751,6 +13751,7 @@ int hfi1_set_ctxt_pkey(struct hfi1_devdata *dd, unsigned ctxt, u16 pkey) write_kctxt_csr(dd, sctxt, SEND_CTXT_CHECK_PARTITION_KEY, reg); reg = read_kctxt_csr(dd, sctxt, SEND_CTXT_CHECK_ENABLE); reg |= SEND_CTXT_CHECK_ENABLE_CHECK_PARTITION_KEY_SMASK; + reg &= ~SEND_CTXT_CHECK_ENABLE_DISALLOW_KDETH_PACKETS_SMASK; write_kctxt_csr(dd, sctxt, SEND_CTXT_CHECK_ENABLE, reg); done: return ret; |