diff options
author | Upinder Malhi <umalhi@cisco.com> | 2013-09-10 03:38:16 +0000 |
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committer | Roland Dreier <roland@purestorage.com> | 2014-01-14 00:44:28 -0800 |
commit | e3cf00d0a87f025db5855a43a67c67a41fa79fef (patch) | |
tree | 34ab93de5918af08434dcf063e4ff5ae78425989 /drivers/infiniband/hw/usnic/usnic_common_util.h | |
parent | 7e22e91102c6b9df7c4ae2168910e19d2bb14cd6 (diff) | |
download | linux-e3cf00d0a87f025db5855a43a67c67a41fa79fef.tar.bz2 |
IB/usnic: Add Cisco VIC low-level hardware driver
This adds a driver that allows userspace to use UD-like QPs over a
proprietary Cisco transport with Cisco's Virtual Interface Cards (VICs),
including VIC 1240 and 1280 cards.
Signed-off-by: Upinder Malhi <umalhi@cisco.com>
Signed-off-by: Christian Benvenuti <benve@cisco.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
Diffstat (limited to 'drivers/infiniband/hw/usnic/usnic_common_util.h')
-rw-r--r-- | drivers/infiniband/hw/usnic/usnic_common_util.h | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/usnic/usnic_common_util.h b/drivers/infiniband/hw/usnic/usnic_common_util.h new file mode 100644 index 000000000000..128550a4f9e2 --- /dev/null +++ b/drivers/infiniband/hw/usnic/usnic_common_util.h @@ -0,0 +1,51 @@ +/* + * Copyright (c) 2013, Cisco Systems, Inc. All rights reserved. + * + * This program is free software; you may redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + */ + +#ifndef USNIC_CMN_UTIL_H +#define USNIC_CMN_UTIL_H + +static inline void +usnic_mac_to_gid(const char *const mac, char *raw_gid) +{ + raw_gid[0] = 0xfe; + raw_gid[1] = 0x80; + memset(&raw_gid[2], 0, 6); + raw_gid[8] = mac[0]^2; + raw_gid[9] = mac[1]; + raw_gid[10] = mac[2]; + raw_gid[11] = 0xff; + raw_gid[12] = 0xfe; + raw_gid[13] = mac[3]; + raw_gid[14] = mac[4]; + raw_gid[15] = mac[5]; +} + +static inline void +usnic_write_gid_if_id_from_mac(char *mac, char *raw_gid) +{ + raw_gid[8] = mac[0]^2; + raw_gid[9] = mac[1]; + raw_gid[10] = mac[2]; + raw_gid[11] = 0xff; + raw_gid[12] = 0xfe; + raw_gid[13] = mac[3]; + raw_gid[14] = mac[4]; + raw_gid[15] = mac[5]; +} + +#endif /* USNIC_COMMON_UTIL_H */ |