mirror of
https://github.com/AetherDroid/android_kernel_samsung_on5xelte.git
synced 2025-10-31 08:08:51 +01:00
397 lines
12 KiB
C
397 lines
12 KiB
C
/***********************license start***************
|
|
* Author: Cavium Networks
|
|
*
|
|
* Contact: support@caviumnetworks.com
|
|
* This file is part of the OCTEON SDK
|
|
*
|
|
* Copyright (c) 2003-2008 Cavium Networks
|
|
*
|
|
* This file is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License, Version 2, as
|
|
* published by the Free Software Foundation.
|
|
*
|
|
* This file is distributed in the hope that it will be useful, but
|
|
* AS-IS and WITHOUT ANY WARRANTY; without even the implied warranty
|
|
* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, TITLE, or
|
|
* NONINFRINGEMENT. See the GNU General Public License for more
|
|
* details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this file; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
|
* or visit http://www.gnu.org/licenses/.
|
|
*
|
|
* This file may also be available under a different license from Cavium.
|
|
* Contact Cavium Networks for more information
|
|
***********************license end**************************************/
|
|
|
|
/**
|
|
*
|
|
* This header file defines the work queue entry (wqe) data structure.
|
|
* Since this is a commonly used structure that depends on structures
|
|
* from several hardware blocks, those definitions have been placed
|
|
* in this file to create a single point of definition of the wqe
|
|
* format.
|
|
* Data structures are still named according to the block that they
|
|
* relate to.
|
|
*
|
|
*/
|
|
|
|
#ifndef __CVMX_WQE_H__
|
|
#define __CVMX_WQE_H__
|
|
|
|
#include <asm/octeon/cvmx-packet.h>
|
|
|
|
|
|
#define OCT_TAG_TYPE_STRING(x) \
|
|
(((x) == CVMX_POW_TAG_TYPE_ORDERED) ? "ORDERED" : \
|
|
(((x) == CVMX_POW_TAG_TYPE_ATOMIC) ? "ATOMIC" : \
|
|
(((x) == CVMX_POW_TAG_TYPE_NULL) ? "NULL" : \
|
|
"NULL_NULL")))
|
|
|
|
/**
|
|
* HW decode / err_code in work queue entry
|
|
*/
|
|
typedef union {
|
|
uint64_t u64;
|
|
|
|
/* Use this struct if the hardware determines that the packet is IP */
|
|
struct {
|
|
/* HW sets this to the number of buffers used by this packet */
|
|
uint64_t bufs:8;
|
|
/* HW sets to the number of L2 bytes prior to the IP */
|
|
uint64_t ip_offset:8;
|
|
/* set to 1 if we found DSA/VLAN in the L2 */
|
|
uint64_t vlan_valid:1;
|
|
/* Set to 1 if the DSA/VLAN tag is stacked */
|
|
uint64_t vlan_stacked:1;
|
|
uint64_t unassigned:1;
|
|
/* HW sets to the DSA/VLAN CFI flag (valid when vlan_valid) */
|
|
uint64_t vlan_cfi:1;
|
|
/* HW sets to the DSA/VLAN_ID field (valid when vlan_valid) */
|
|
uint64_t vlan_id:12;
|
|
/* Ring Identifier (if PCIe). Requires PIP_GBL_CTL[RING_EN]=1 */
|
|
uint64_t pr:4;
|
|
uint64_t unassigned2:8;
|
|
/* the packet needs to be decompressed */
|
|
uint64_t dec_ipcomp:1;
|
|
/* the packet is either TCP or UDP */
|
|
uint64_t tcp_or_udp:1;
|
|
/* the packet needs to be decrypted (ESP or AH) */
|
|
uint64_t dec_ipsec:1;
|
|
/* the packet is IPv6 */
|
|
uint64_t is_v6:1;
|
|
|
|
/*
|
|
* (rcv_error, not_IP, IP_exc, is_frag, L4_error,
|
|
* software, etc.).
|
|
*/
|
|
|
|
/*
|
|
* reserved for software use, hardware will clear on
|
|
* packet creation.
|
|
*/
|
|
uint64_t software:1;
|
|
/* exceptional conditions below */
|
|
/* the receive interface hardware detected an L4 error
|
|
* (only applies if !is_frag) (only applies if
|
|
* !rcv_error && !not_IP && !IP_exc && !is_frag)
|
|
* failure indicated in err_code below, decode:
|
|
*
|
|
* - 1 = Malformed L4
|
|
* - 2 = L4 Checksum Error: the L4 checksum value is
|
|
* - 3 = UDP Length Error: The UDP length field would
|
|
* make the UDP data longer than what remains in
|
|
* the IP packet (as defined by the IP header
|
|
* length field).
|
|
* - 4 = Bad L4 Port: either the source or destination
|
|
* TCP/UDP port is 0.
|
|
* - 8 = TCP FIN Only: the packet is TCP and only the
|
|
* FIN flag set.
|
|
* - 9 = TCP No Flags: the packet is TCP and no flags
|
|
* are set.
|
|
* - 10 = TCP FIN RST: the packet is TCP and both FIN
|
|
* and RST are set.
|
|
* - 11 = TCP SYN URG: the packet is TCP and both SYN
|
|
* and URG are set.
|
|
* - 12 = TCP SYN RST: the packet is TCP and both SYN
|
|
* and RST are set.
|
|
* - 13 = TCP SYN FIN: the packet is TCP and both SYN
|
|
* and FIN are set.
|
|
*/
|
|
uint64_t L4_error:1;
|
|
/* set if the packet is a fragment */
|
|
uint64_t is_frag:1;
|
|
/* the receive interface hardware detected an IP error
|
|
* / exception (only applies if !rcv_error && !not_IP)
|
|
* failure indicated in err_code below, decode:
|
|
*
|
|
* - 1 = Not IP: the IP version field is neither 4 nor
|
|
* 6.
|
|
* - 2 = IPv4 Header Checksum Error: the IPv4 header
|
|
* has a checksum violation.
|
|
* - 3 = IP Malformed Header: the packet is not long
|
|
* enough to contain the IP header.
|
|
* - 4 = IP Malformed: the packet is not long enough
|
|
* to contain the bytes indicated by the IP
|
|
* header. Pad is allowed.
|
|
* - 5 = IP TTL Hop: the IPv4 TTL field or the IPv6
|
|
* Hop Count field are zero.
|
|
* - 6 = IP Options
|
|
*/
|
|
uint64_t IP_exc:1;
|
|
/*
|
|
* Set if the hardware determined that the packet is a
|
|
* broadcast.
|
|
*/
|
|
uint64_t is_bcast:1;
|
|
/*
|
|
* St if the hardware determined that the packet is a
|
|
* multi-cast.
|
|
*/
|
|
uint64_t is_mcast:1;
|
|
/*
|
|
* Set if the packet may not be IP (must be zero in
|
|
* this case).
|
|
*/
|
|
uint64_t not_IP:1;
|
|
/*
|
|
* The receive interface hardware detected a receive
|
|
* error (must be zero in this case).
|
|
*/
|
|
uint64_t rcv_error:1;
|
|
/* lower err_code = first-level descriptor of the
|
|
* work */
|
|
/* zero for packet submitted by hardware that isn't on
|
|
* the slow path */
|
|
/* type is cvmx_pip_err_t */
|
|
uint64_t err_code:8;
|
|
} s;
|
|
|
|
/* use this to get at the 16 vlan bits */
|
|
struct {
|
|
uint64_t unused1:16;
|
|
uint64_t vlan:16;
|
|
uint64_t unused2:32;
|
|
} svlan;
|
|
|
|
/*
|
|
* use this struct if the hardware could not determine that
|
|
* the packet is ip.
|
|
*/
|
|
struct {
|
|
/*
|
|
* HW sets this to the number of buffers used by this
|
|
* packet.
|
|
*/
|
|
uint64_t bufs:8;
|
|
uint64_t unused:8;
|
|
/* set to 1 if we found DSA/VLAN in the L2 */
|
|
uint64_t vlan_valid:1;
|
|
/* Set to 1 if the DSA/VLAN tag is stacked */
|
|
uint64_t vlan_stacked:1;
|
|
uint64_t unassigned:1;
|
|
/*
|
|
* HW sets to the DSA/VLAN CFI flag (valid when
|
|
* vlan_valid)
|
|
*/
|
|
uint64_t vlan_cfi:1;
|
|
/*
|
|
* HW sets to the DSA/VLAN_ID field (valid when
|
|
* vlan_valid).
|
|
*/
|
|
uint64_t vlan_id:12;
|
|
/*
|
|
* Ring Identifier (if PCIe). Requires
|
|
* PIP_GBL_CTL[RING_EN]=1
|
|
*/
|
|
uint64_t pr:4;
|
|
uint64_t unassigned2:12;
|
|
/*
|
|
* reserved for software use, hardware will clear on
|
|
* packet creation.
|
|
*/
|
|
uint64_t software:1;
|
|
uint64_t unassigned3:1;
|
|
/*
|
|
* set if the hardware determined that the packet is
|
|
* rarp.
|
|
*/
|
|
uint64_t is_rarp:1;
|
|
/*
|
|
* set if the hardware determined that the packet is
|
|
* arp
|
|
*/
|
|
uint64_t is_arp:1;
|
|
/*
|
|
* set if the hardware determined that the packet is a
|
|
* broadcast.
|
|
*/
|
|
uint64_t is_bcast:1;
|
|
/*
|
|
* set if the hardware determined that the packet is a
|
|
* multi-cast
|
|
*/
|
|
uint64_t is_mcast:1;
|
|
/*
|
|
* set if the packet may not be IP (must be one in
|
|
* this case)
|
|
*/
|
|
uint64_t not_IP:1;
|
|
/* The receive interface hardware detected a receive
|
|
* error. Failure indicated in err_code below,
|
|
* decode:
|
|
*
|
|
* - 1 = partial error: a packet was partially
|
|
* received, but internal buffering / bandwidth
|
|
* was not adequate to receive the entire
|
|
* packet.
|
|
* - 2 = jabber error: the RGMII packet was too large
|
|
* and is truncated.
|
|
* - 3 = overrun error: the RGMII packet is longer
|
|
* than allowed and had an FCS error.
|
|
* - 4 = oversize error: the RGMII packet is longer
|
|
* than allowed.
|
|
* - 5 = alignment error: the RGMII packet is not an
|
|
* integer number of bytes
|
|
* and had an FCS error (100M and 10M only).
|
|
* - 6 = fragment error: the RGMII packet is shorter
|
|
* than allowed and had an FCS error.
|
|
* - 7 = GMX FCS error: the RGMII packet had an FCS
|
|
* error.
|
|
* - 8 = undersize error: the RGMII packet is shorter
|
|
* than allowed.
|
|
* - 9 = extend error: the RGMII packet had an extend
|
|
* error.
|
|
* - 10 = length mismatch error: the RGMII packet had
|
|
* a length that did not match the length field
|
|
* in the L2 HDR.
|
|
* - 11 = RGMII RX error/SPI4 DIP4 Error: the RGMII
|
|
* packet had one or more data reception errors
|
|
* (RXERR) or the SPI4 packet had one or more
|
|
* DIP4 errors.
|
|
* - 12 = RGMII skip error/SPI4 Abort Error: the RGMII
|
|
* packet was not large enough to cover the
|
|
* skipped bytes or the SPI4 packet was
|
|
* terminated with an About EOPS.
|
|
* - 13 = RGMII nibble error/SPI4 Port NXA Error: the
|
|
* RGMII packet had a studder error (data not
|
|
* repeated - 10/100M only) or the SPI4 packet
|
|
* was sent to an NXA.
|
|
* - 16 = FCS error: a SPI4.2 packet had an FCS error.
|
|
* - 17 = Skip error: a packet was not large enough to
|
|
* cover the skipped bytes.
|
|
* - 18 = L2 header malformed: the packet is not long
|
|
* enough to contain the L2.
|
|
*/
|
|
|
|
uint64_t rcv_error:1;
|
|
/*
|
|
* lower err_code = first-level descriptor of the
|
|
* work
|
|
*/
|
|
/*
|
|
* zero for packet submitted by hardware that isn't on
|
|
* the slow path
|
|
*/
|
|
/* type is cvmx_pip_err_t (union, so can't use directly */
|
|
uint64_t err_code:8;
|
|
} snoip;
|
|
|
|
} cvmx_pip_wqe_word2;
|
|
|
|
/**
|
|
* Work queue entry format
|
|
*
|
|
* must be 8-byte aligned
|
|
*/
|
|
typedef struct {
|
|
|
|
/*****************************************************************
|
|
* WORD 0
|
|
* HW WRITE: the following 64 bits are filled by HW when a packet arrives
|
|
*/
|
|
|
|
/**
|
|
* raw chksum result generated by the HW
|
|
*/
|
|
uint16_t hw_chksum;
|
|
/**
|
|
* Field unused by hardware - available for software
|
|
*/
|
|
uint8_t unused;
|
|
/**
|
|
* Next pointer used by hardware for list maintenance.
|
|
* May be written/read by HW before the work queue
|
|
* entry is scheduled to a PP
|
|
* (Only 36 bits used in Octeon 1)
|
|
*/
|
|
uint64_t next_ptr:40;
|
|
|
|
/*****************************************************************
|
|
* WORD 1
|
|
* HW WRITE: the following 64 bits are filled by HW when a packet arrives
|
|
*/
|
|
|
|
/**
|
|
* HW sets to the total number of bytes in the packet
|
|
*/
|
|
uint64_t len:16;
|
|
/**
|
|
* HW sets this to input physical port
|
|
*/
|
|
uint64_t ipprt:6;
|
|
|
|
/**
|
|
* HW sets this to what it thought the priority of the input packet was
|
|
*/
|
|
uint64_t qos:3;
|
|
|
|
/**
|
|
* the group that the work queue entry will be scheduled to
|
|
*/
|
|
uint64_t grp:4;
|
|
/**
|
|
* the type of the tag (ORDERED, ATOMIC, NULL)
|
|
*/
|
|
uint64_t tag_type:3;
|
|
/**
|
|
* the synchronization/ordering tag
|
|
*/
|
|
uint64_t tag:32;
|
|
|
|
/**
|
|
* WORD 2 HW WRITE: the following 64-bits are filled in by
|
|
* hardware when a packet arrives This indicates a variety of
|
|
* status and error conditions.
|
|
*/
|
|
cvmx_pip_wqe_word2 word2;
|
|
|
|
/**
|
|
* Pointer to the first segment of the packet.
|
|
*/
|
|
union cvmx_buf_ptr packet_ptr;
|
|
|
|
/**
|
|
* HW WRITE: octeon will fill in a programmable amount from the
|
|
* packet, up to (at most, but perhaps less) the amount
|
|
* needed to fill the work queue entry to 128 bytes
|
|
*
|
|
* If the packet is recognized to be IP, the hardware starts
|
|
* (except that the IPv4 header is padded for appropriate
|
|
* alignment) writing here where the IP header starts. If the
|
|
* packet is not recognized to be IP, the hardware starts
|
|
* writing the beginning of the packet here.
|
|
*/
|
|
uint8_t packet_data[96];
|
|
|
|
/**
|
|
* If desired, SW can make the work Q entry any length. For the
|
|
* purposes of discussion here, Assume 128B always, as this is all that
|
|
* the hardware deals with.
|
|
*
|
|
*/
|
|
|
|
} CVMX_CACHE_LINE_ALIGNED cvmx_wqe_t;
|
|
|
|
#endif /* __CVMX_WQE_H__ */
|