diff options
author | José Pekkarinen <jose.pekkarinen@nokia.com> | 2016-04-11 10:41:07 +0300 |
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committer | José Pekkarinen <jose.pekkarinen@nokia.com> | 2016-04-13 08:17:18 +0300 |
commit | e09b41010ba33a20a87472ee821fa407a5b8da36 (patch) | |
tree | d10dc367189862e7ca5c592f033dc3726e1df4e3 /kernel/drivers/crypto/qat/qat_common/adf_pf2vf_msg.h | |
parent | f93b97fd65072de626c074dbe099a1fff05ce060 (diff) |
These changes are the raw update to linux-4.4.6-rt14. Kernel sources
are taken from kernel.org, and rt patch from the rt wiki download page.
During the rebasing, the following patch collided:
Force tick interrupt and get rid of softirq magic(I70131fb85).
Collisions have been removed because its logic was found on the
source already.
Change-Id: I7f57a4081d9deaa0d9ccfc41a6c8daccdee3b769
Signed-off-by: José Pekkarinen <jose.pekkarinen@nokia.com>
Diffstat (limited to 'kernel/drivers/crypto/qat/qat_common/adf_pf2vf_msg.h')
-rw-r--r-- | kernel/drivers/crypto/qat/qat_common/adf_pf2vf_msg.h | 146 |
1 files changed, 146 insertions, 0 deletions
diff --git a/kernel/drivers/crypto/qat/qat_common/adf_pf2vf_msg.h b/kernel/drivers/crypto/qat/qat_common/adf_pf2vf_msg.h new file mode 100644 index 000000000..5acd531a1 --- /dev/null +++ b/kernel/drivers/crypto/qat/qat_common/adf_pf2vf_msg.h @@ -0,0 +1,146 @@ +/* + This file is provided under a dual BSD/GPLv2 license. When using or + redistributing this file, you may do so under either license. + + GPL LICENSE SUMMARY + Copyright(c) 2015 Intel Corporation. + This program is free software; you can redistribute it and/or modify + it under the terms of version 2 of the GNU General Public License as + published by the Free Software Foundation. + + This program is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + Contact Information: + qat-linux@intel.com + + BSD LICENSE + Copyright(c) 2015 Intel Corporation. + Redistribution and use in source and binary forms, with or without + modification, are permitted provided that the following conditions + are met: + + * Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + * Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in + the documentation and/or other materials provided with the + distribution. + * Neither the name of Intel Corporation nor the names of its + contributors may be used to endorse or promote products derived + from this software without specific prior written permission. + + THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +*/ +#ifndef ADF_PF2VF_MSG_H +#define ADF_PF2VF_MSG_H + +/* + * PF<->VF Messaging + * The PF has an array of 32-bit PF2VF registers, one for each VF. The + * PF can access all these registers; each VF can access only the one + * register associated with that particular VF. + * + * The register functionally is split into two parts: + * The bottom half is for PF->VF messages. In particular when the first + * bit of this register (bit 0) gets set an interrupt will be triggered + * in the respective VF. + * The top half is for VF->PF messages. In particular when the first bit + * of this half of register (bit 16) gets set an interrupt will be triggered + * in the PF. + * + * The remaining bits within this register are available to encode messages. + * and implement a collision control mechanism to prevent concurrent use of + * the PF2VF register by both the PF and VF. + * + * 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 + * _______________________________________________ + * | | | | | | | | | | | | | | | | | + * +-----------------------------------------------+ + * \___________________________/ \_________/ ^ ^ + * ^ ^ | | + * | | | VF2PF Int + * | | Message Origin + * | Message Type + * Message-specific Data/Reserved + * + * 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 + * _______________________________________________ + * | | | | | | | | | | | | | | | | | + * +-----------------------------------------------+ + * \___________________________/ \_________/ ^ ^ + * ^ ^ | | + * | | | PF2VF Int + * | | Message Origin + * | Message Type + * Message-specific Data/Reserved + * + * Message Origin (Should always be 1) + * A legacy out-of-tree QAT driver allowed for a set of messages not supported + * by this driver; these had a Msg Origin of 0 and are ignored by this driver. + * + * When a PF or VF attempts to send a message in the lower or upper 16 bits, + * respectively, the other 16 bits are written to first with a defined + * IN_USE_BY pattern as part of a collision control scheme (see adf_iov_putmsg). + */ + +#define ADF_PFVF_COMPATIBILITY_VERSION 0x1 /* PF<->VF compat */ + +/* PF->VF messages */ +#define ADF_PF2VF_INT BIT(0) +#define ADF_PF2VF_MSGORIGIN_SYSTEM BIT(1) +#define ADF_PF2VF_MSGTYPE_MASK 0x0000003C +#define ADF_PF2VF_MSGTYPE_SHIFT 2 +#define ADF_PF2VF_MSGTYPE_RESTARTING 0x01 +#define ADF_PF2VF_MSGTYPE_VERSION_RESP 0x02 +#define ADF_PF2VF_IN_USE_BY_PF 0x6AC20000 +#define ADF_PF2VF_IN_USE_BY_PF_MASK 0xFFFE0000 + +/* PF->VF Version Response */ +#define ADF_PF2VF_VERSION_RESP_VERS_MASK 0x00003FC0 +#define ADF_PF2VF_VERSION_RESP_VERS_SHIFT 6 +#define ADF_PF2VF_VERSION_RESP_RESULT_MASK 0x0000C000 +#define ADF_PF2VF_VERSION_RESP_RESULT_SHIFT 14 +#define ADF_PF2VF_MINORVERSION_SHIFT 6 +#define ADF_PF2VF_MAJORVERSION_SHIFT 10 +#define ADF_PF2VF_VF_COMPATIBLE 1 +#define ADF_PF2VF_VF_INCOMPATIBLE 2 +#define ADF_PF2VF_VF_COMPAT_UNKNOWN 3 + +/* VF->PF messages */ +#define ADF_VF2PF_IN_USE_BY_VF 0x00006AC2 +#define ADF_VF2PF_IN_USE_BY_VF_MASK 0x0000FFFE +#define ADF_VF2PF_INT BIT(16) +#define ADF_VF2PF_MSGORIGIN_SYSTEM BIT(17) +#define ADF_VF2PF_MSGTYPE_MASK 0x003C0000 +#define ADF_VF2PF_MSGTYPE_SHIFT 18 +#define ADF_VF2PF_MSGTYPE_INIT 0x3 +#define ADF_VF2PF_MSGTYPE_SHUTDOWN 0x4 +#define ADF_VF2PF_MSGTYPE_VERSION_REQ 0x5 +#define ADF_VF2PF_MSGTYPE_COMPAT_VER_REQ 0x6 + +/* VF->PF Compatible Version Request */ +#define ADF_VF2PF_COMPAT_VER_REQ_SHIFT 22 + +/* Collision detection */ +#define ADF_IOV_MSG_COLLISION_DETECT_DELAY 10 +#define ADF_IOV_MSG_ACK_DELAY 2 +#define ADF_IOV_MSG_ACK_MAX_RETRY 100 +#define ADF_IOV_MSG_RETRY_DELAY 5 +#define ADF_IOV_MSG_MAX_RETRIES 3 +#define ADF_IOV_MSG_RESP_TIMEOUT (ADF_IOV_MSG_ACK_DELAY * \ + ADF_IOV_MSG_ACK_MAX_RETRY + \ + ADF_IOV_MSG_COLLISION_DETECT_DELAY) +#endif /* ADF_IOV_MSG_H */ |