--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/components/open-fabrics/libsif/include/psifapi/psif_hw_data_le.h Tue Nov 08 04:33:35 2016 -0800
@@ -0,0 +1,3586 @@
+/*
+ * Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved.
+ */
+
+/*
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ *
+ * 2. 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.
+ *
+ * 3. Neither the name of the copyright holder 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 HOLDER 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 _PSIF_HW_DATA_H_LE
+#define _PSIF_HW_DATA_H_LE
+
+/* CSR automated type for TSU_MMU_MMU_CONFIG */
+/* MMU Static-Configuration and Status */
+struct psif_csr_mmu_config {
+ u16 cam_evict_cntr_prescale_sel:3;
+ u16 cam_evict_cntr_cnt_sel:5;
+ u16 ptwc_evict_algorithm:1;
+ u16 mmuc_evict_algorithm:1;
+ u16 random_evict:1;
+ u16 mmuc_hash_select:2;
+ u16 swap_rsp:1;
+ u16 chk_upper_addr_bits:1;
+ u16 chk_bit_sixty_three:1;
+ u16 bit_sixty_three_value:1;
+ u16 sparc_pages:1;
+ u16 dma_cnt_mask:8;
+ u16 ptwc_hash_sel:2;
+ u16 noname:2;
+ u16 dis_table_ptr_trans:1;
+ u16 cam_par_err_fatal:1;
+ u16 ta_upper_twelve:12;
+ u16 noname1:4;
+ u16 pa_upper_twelve:12;
+ u16 noname2:4;
+} PSIF_PACKED_ALIGNED; /* struct psif_csr_mmu_config [ 8 byte] */
+
+/*
+ * Context used by tsu_mmu when performing address translation. The structure
+ * is follows: [63:56] st [55:55] no_snoop [54:53] tph [52:52] ro [51:12]
+ * table_ptr [11:11] th [10:8] translation_type [7:4] page_size [3:3]
+ * wr_access [2:0] table_level
+ */
+struct psif_mmu_cntx {
+ /*
+ * XXX: Should this be enumerated? XXX: Make sure description is added when
+ * encoding is decided...
+ */
+ u64 table_level:3;
+ /* Set for write access. */
+ u64 wr_access:1;
+ /* Different supported page sizes. */
+ enum psif_page_size page_size:4;
+
+ /*
+ * Translation types supported by the PSIF MMU. The modes are:
+ * MMU_PASS_THROUGH MMU_GVA2GPA_MODE, MMU_EPSA_MODE, MMU_EPSC_MODE
+ */
+ enum psif_mmu_translation translation_type:3;
+
+ /* Indicates that the TPH field is valid for the PCIe request. */
+ u64 th:1;
+ /*
+ * This is bit [51:12] of the table pointer. The lower twelve bits are always
+ * set to zero. The pointer is pointing to a certain level in the page table
+ * structure. Only applicable if translation_type is set.
+ */
+ u64 table_ptr:40;
+ /* PCIe relaxed ordering. */
+ u64 ro:1;
+ /* PCIe TLP hints. */
+ u64 tph:2;
+ /* PCIe no snoop. */
+ u64 ns:1;
+ /* PCIe steering tag. */
+ u64 st:8;
+} PSIF_PACKED_ALIGNED; /* struct psif_mmu_cntx [ 8 byte] */
+
+/* Descriptor for hardware updated portion of XRC receive queue. */
+struct psif_xrq_hw { /* Subjected to copy and convert */
+ /*
+ * If set to something greater than zero, event notification is armed. An
+ * Affiliated Synchronous Event will be sent when number of WQE are less than
+ * srq_lim.
+ */
+ u32 srq_lim:14;
+ /*
+ * Hardware modified index pointing to the head of the receive queue. TSU is
+ * using this to find the address of the receive queue entry.
+ */
+ u32 head_indx:14;
+ /* This is the shift value to use to find start of the receive queue element. */
+ u32 extent_log2:4;
+ /* pd(24[0] bits)Protection domain. */
+ u32 pd:24;
+ /* This is indicating how many scatter entries are valid. */
+ u32 scatter:4;
+ /* Reserved */
+ u32 noname:1;
+ /* The shared receive queue is in error. */
+ u32 srq_err:1;
+ /* This is a shared receive queue. This is always set for XRCSRQs. */
+ u32 srq:1;
+ /*
+ * Do not evict this entry if this bit is set. There can only be a fixed
+ * number of descriptors with this bit set. XXX: Should this be used as a
+ * hint, or should it be fixed?
+ */
+ u32 sticky:1;
+ /* Inlined rq : struct psif_rq_no_pad (256 bits) */
+ /* Base address for the receive queue in host memory. */
+ u64 base_addr;
+ struct psif_mmu_cntx mmu_cntx;
+ /* Completion queue to use for the incoming packet. */
+ u64 cqd_id:24;
+ /*
+ * XRC domain used to check if this descriptor can be used for the incoming
+ * packet.
+ */
+ u64 xrc_domain:24;
+ /* Reserved */
+ u64 noname1:7;
+ /* The desciptor is valid. */
+ u64 valid:1;
+ /*
+ * Pre-fetch threshold (clog2) indicating when to read the software portion
+ * of the descriptor. If there are less entries than indicated by this
+ * threshold, the software portion of the descriptor must be read.
+ */
+ u64 prefetch_threshold_log2:4;
+ /*
+ * Log2 size of the receive queue. Maximum number of entries in the receive
+ * queue. This is used for calculating when to wrap the head and tail
+ * indexes.
+ */
+ u64 size_log2:4;
+} PSIF_PACKED_ALIGNED; /* struct psif_xrq_hw [32 byte] */
+
+/* Temp.definition of Shared receive queue content */
+struct psif_xrq { /* Subjected to copy and convert */
+ /* Content pt. not defined in ASIC XML */
+ u64 something_tbd;
+} PSIF_PACKED_ALIGNED; /* struct psif_xrq [ 8 byte] */
+
+struct psif_vlan_union_struct {
+ /* Reserved */
+ u32 noname:20;
+ /* VLAN priority. */
+ u32 vlan_pri:4;
+} PSIF_PACKED; /* struct psif_vlan_union_struct [ 3 byte] */
+
+/*
+ * Union between the CQ descriptor ID and VLAN pri. The CQ desc id is only
+ * used for privileged requests, and the vlan_pri is only used for EoIB
+ * offloading.
+ */
+union psif_cq_desc_vlan_pri {
+ /*
+ * This is only used for privileged requests. Completion queue descriptor
+ * index where completions for privileged requests end up. This index points
+ * to the completion queue to be used with this work request.
+ */
+ u32 cqd_id:24;
+ /* VLAN priority. */
+ struct psif_vlan_union_struct vlan_pri;
+} PSIF_PACKED; /* union psif_cq_desc_vlan_pri [ 3 byte] */
+
+/*
+ * Generic header for work requests to PSIF. This is present for all packet
+ * types.
+ */
+struct psif_wr_common {
+ /*
+ * Send queue sequence number. Used to map request to a particular work
+ * request in the send queue.
+ */
+ u16 sq_seq;
+ /* Length (number of bytes of valid data in the collect payload buffer). */
+ u16 collect_length:9;
+ /*
+ * High Bandwidth/Low Latency BAR. The QoSL must be matched against the QoSL
+ * in the QP State. If it is unequal, the QP should be in error.
+ */
+ enum psif_tsu_qos tsu_qosl:1;
+
+ /* Only applicable to UD. This is an indication that AHA should be used. */
+ enum psif_use_ah ud_pkt:1;
+
+ /* Port number to use for QP0/1 packets. This field is ignored if not QP0/1. */
+ enum psif_port port:1;
+
+ /*
+ * The TSL (Tsu SL) must be matched against the TSL in the QP State (XXX: or
+ * in the AHA?). If it is unequal, the QP should be put in error.
+ */
+ u16 tsu_sl:4;
+ /*
+ * QP sending this request. XXX: Should name be own_qp_num as defined in QP
+ * state?
+ */
+ u32 local_qp:24;
+ /* Indicates shat type of request this is. */
+ enum psif_wr_type op:8;
+
+ /* Union between VLAN priority and CQ descriptor ID. */
+ union psif_cq_desc_vlan_pri cq_desc_vlan_pri_union;
+ /* UF used for all EPS-C QP0/1 packets. This field is ignored otherwise. */
+ u64 srcuf:6;
+ /* Fence indicator. */
+ u64 fence:1;
+ /* Completion notification identifier. */
+ u64 completion:1;
+ /*
+ * EPS tag - used by EPS to associate process and work request. This field is
+ * not used by non-EPS work requests.
+ */
+ u64 eps_tag:16;
+ /* Reserved */
+ u64 noname:2;
+ /* UF used for DR loopback packets. This field is ignored otherwise. */
+ u64 destuf:6;
+ /* Number of SGL entries are valid for this request. */
+ u64 num_sgl:4;
+ /* L4 checksum enabled when set. This is used for EoIB and IPoIB packets. */
+ u64 l4_checksum_en:1;
+ /* L3 checksum enabled when set. This is used for EoIB and IPoIB packets. */
+ u64 l3_checksum_en:1;
+ /* Dynamic MTU is enabled for this work request. */
+ u64 dynamic_mtu_enable:1;
+ /* Solicited event bit to be set in IB packet. */
+ u64 se:1;
+ /* Info: Edge padding added (for endian convert) */
+ u32 space1;
+ /*
+ * Checksum used for data protection and consistency between work request and
+ * QP state.
+ */
+ u32 checksum;
+} PSIF_PACKED_ALIGNED; /* struct psif_wr_common [24 byte] */
+
+struct psif_wr_qp {
+ /* Q-Key for the remote node. */
+ u32 qkey;
+ /* QP number for the remote node. */
+ u32 remote_qp:24;
+ /* Reserved */
+ u32 noname:8;
+} PSIF_PACKED_ALIGNED; /* struct psif_wr_qp [ 8 byte] */
+
+/* Local address structure. */
+struct psif_wr_local {
+ /* Host address. */
+ u64 addr;
+ /* This is the total length of the message. */
+ u32 length;
+ /* Local key used to validate the memory region this address is pointing to. */
+ u32 lkey;
+} PSIF_PACKED_ALIGNED; /* struct psif_wr_local [16 byte] */
+
+struct psif_wr_addr {
+ /* Index into the Address Handle Array. */
+ u32 ah_indx:24;
+ /* Reserved */
+ u32 noname:8;
+} PSIF_PACKED; /* struct psif_wr_addr [ 4 byte] */
+
+/*
+ * This header is used for IB send operations. The header is a union and
+ * consists of either a connected mode header or a datagram mode header. The
+ * following opcodes are using this header: PSIF_WR_SEND PSIF_WR_SEND_IMM
+ * PSIF_WR_SPECIAL_QP_SEND PSIF_WR_QP0_SEND_DR_XMIT
+ * PSIF_WR_QP0_SEND_DR_LOOPBACK PSIF_WR_EPS_SPECIAL_QP_SEND
+ * PSIF_WR_EPS_QP0_SEND_DR_XMIT PSIF_WR_EPS_QP0_SEND_DR_LOOPBACK PSIF_WR_LSO
+ */
+struct psif_wr_send_header_ud {
+ struct psif_wr_qp qp;
+ /* Header used for IB send commands using UD mode. */
+ /* Inlined ud : struct psif_wr_ud_send (224 bits) */
+ struct psif_wr_local local_addr;
+ /*
+ * Max segment size used for PSIF_WR_LSO. This field is not used for other
+ * operations.
+ */
+ u32 mss:14;
+ /* Reserved */
+ u32 noname:18;
+ struct psif_wr_addr remote_addr;
+} PSIF_PACKED_ALIGNED; /* struct psif_wr_send_header_ud [32 byte] */
+
+/*
+ * This header is used for IB send operations. The header is a union and
+ * consists of either a connected mode header or a datagram mode header. The
+ * following opcodes are using this header: PSIF_WR_SEND PSIF_WR_SEND_IMM
+ * PSIF_WR_SPECIAL_QP_SEND PSIF_WR_QP0_SEND_DR_XMIT
+ * PSIF_WR_QP0_SEND_DR_LOOPBACK PSIF_WR_EPS_SPECIAL_QP_SEND
+ * PSIF_WR_EPS_QP0_SEND_DR_XMIT PSIF_WR_EPS_QP0_SEND_DR_LOOPBACK PSIF_WR_LSO
+ */
+struct psif_wr_send_header_uc_rc_xrc {
+ struct psif_wr_local local_addr;
+ /* Header used with IB send commands using connected mode. */
+ /* Inlined uc_rc_xrc : struct psif_wr_cm (224 bits) */
+ /*
+ * Reserved. XXX: FIX ME - calculation of this field based on constant, not
+ * psif_wr_local_address_header as it should.
+ */
+ u32 reserved10[3];
+ /*
+ * Max segment size used for PSIF_WR_LSO. This field is not used for other
+ * operations.
+ */
+ u32 mss:14;
+ /* Reserved */
+ u32 noname:18;
+} PSIF_PACKED_ALIGNED; /* struct psif_wr_send_header_uc_rc_xrc [32 byte] */
+
+/*
+ * This header is used for IB send operations. The header is a union and
+ * consists of either a connected mode header or a datagram mode header. The
+ * following opcodes are using this header: PSIF_WR_SEND PSIF_WR_SEND_IMM
+ * PSIF_WR_SPECIAL_QP_SEND PSIF_WR_QP0_SEND_DR_XMIT
+ * PSIF_WR_QP0_SEND_DR_LOOPBACK PSIF_WR_EPS_SPECIAL_QP_SEND
+ * PSIF_WR_EPS_QP0_SEND_DR_XMIT PSIF_WR_EPS_QP0_SEND_DR_LOOPBACK PSIF_WR_LSO
+ */
+union psif_wr_send_header {
+ /* Header used for IB send commands using UD mode. */
+ struct psif_wr_send_header_ud ud;
+ /* Header used with IB send commands using connected mode. */
+ struct psif_wr_send_header_uc_rc_xrc uc_rc_xrc;
+} PSIF_PACKED; /* union psif_wr_send_header [32 byte] */
+
+/* Remote address structure. */
+struct psif_wr_remote {
+ /* Address to the remote side. */
+ u64 addr;
+ /* For RDMA and DM this is the length to add to dmalen in RETH of IB packet. */
+ u32 length;
+ /*
+ * Remote key used to validate the memory region the associated address is
+ * pointing to.
+ */
+ u32 rkey;
+} PSIF_PACKED_ALIGNED; /* struct psif_wr_remote [16 byte] */
+
+/*
+ * This header is used for RDMA type operations. The following opcodes are
+ * using this header: PSIF_WR_RDMA_WR PSIF_WR_RDMA_WR_IMM PSIF_WR_RDMA_RD
+ * PSIF_WR_CMP_SWAP PSIF_WR_FETCH_ADD PSIF_WR_MASK_CMP_SWAP
+ * PSIF_WR_MASK_FETCH_ADD
+ */
+struct psif_wr_rdma {
+ struct psif_wr_local local_addr;
+ struct psif_wr_remote remote_addr;
+} PSIF_PACKED_ALIGNED; /* struct psif_wr_rdma [32 byte] */
+
+/* Send completion ID. */
+struct psif_send_completion_id {
+ /*
+ * This field is only valid for ring buffer send completions (proxy type send
+ * requests). In all other cases this field is ignored.
+ */
+ u16 eps_tag;
+ /*
+ * Send queue sequence number. This is used to map the completion back to a
+ * request in the send queue.
+ */
+ u16 sq_seq_num;
+ /*
+ * Completion queue sequence number for the completion queue being re-armed.
+ * This is going into the completion for the privileged request.
+ */
+ u32 sequence_number;
+} PSIF_PACKED_ALIGNED; /* struct psif_send_completion_id [ 8 byte] */
+
+/* Event completion ID. */
+struct psif_event_completion_id {
+ /* Completion queue descriptor ID which is the source of the event. */
+ u64 cq_id:24;
+ /* Reserved */
+ u64 noname:40;
+} PSIF_PACKED_ALIGNED; /* struct psif_event_completion_id [ 8 byte] */
+
+/* Union containing a send or receive completion ID. */
+union psif_completion_wc_id {
+ /*
+ * Receive Queue completion ID. This is the receive queue entry ID found as
+ * part of receive queue entry.
+ */
+ u64 rq_id;
+ /*
+ * Send Queue completion ID. This contain the send queue sequence number. In
+ * ring buffer send completions this field also conatain a valid EPS tag.
+ */
+ struct psif_send_completion_id sq_id;
+ /* Completion queue descriptor ID which is the source of the event. */
+ struct psif_event_completion_id ecq_id;
+} PSIF_PACKED; /* union psif_completion_wc_id [ 8 byte] */
+
+/*
+ * Union used for descriptor types used when operations on the descriptors
+ * themselves are done, like invalidation, resizing etc. It can the take the
+ * follwing types: rq_id xrq_id cq_id target_qp
+ */
+union psif_descriptor_union {
+ /*
+ * Receive queue descriptor used for the following request:
+ * PSIF_WR_SET_SRQ_LIM: this is the receive queue to set the new limit for.
+ * PSIF_WR_INVALIDATE_RQ: this is the receive queue to invalidate/flush from
+ * the descriptor cache.
+ */
+ u32 rq_id:24;
+ /*
+ * XRCSRQ descriptor used for the following request: PSIF_WR_SET_XRCSRQ_LIM:
+ * this is the XRCSRQ to set the new limit for. PSIF_WR_INVALIDATE_XRCSRQ:
+ * this is the XRCSRQ to invalidate/flush from the descriptor cache.
+ */
+ u32 xrq_id:24;
+ /*
+ * Completion queue descriptor ID used when operations are done on the CQ
+ * descriptor, no completion is sent to this CQ. This field is valid for
+ * PSIF_WR_INVALIDATE_CQ, PSIF_WR_RESIZE_CQ, PSIF_WR_REQ_CMPL_NOTIFY,
+ * PSIF_WR_CMPL_NOTIFY_RCVD, PSIF_WR_REARM_CMPL_EVENT.
+ */
+ u32 cq_id:24;
+ /*
+ * Target QP for PSIF_WR_INVALIDATE_SGL_CACHE command. This field is also
+ * valid for PSIF_WR_GENERATE_COMPLETION, then this is the QP number put in
+ * the completion.
+ */
+ u32 target_qp:24;
+} PSIF_PACKED; /* union psif_descriptor_union [ 3 byte] */
+
+/*
+ * This header is used for privileged operations. The following opcodes are
+ * using this header: PSIF_WR_INVALIDATE_LKEY PSIF_WR_INVALIDATE_RKEY
+ * PSIF_WR_INVALIDATE_BOTH_KEYS PSIF_WR_INVALIDATE_TLB PSIF_WR_RESIZE_CQ
+ * PSIF_WR_SET_SRQ_LIM PSIF_WR_SET_XRCSRQ_LIM PSIF_WR_REQ_CMPL_NOTIFY
+ * PSIF_WR_CMPL_NOTIFY_RCVD PSIF_WR_REARM_CMPL_EVENT
+ * PSIF_WR_GENERATE_COMPLETION PSIF_WR_INVALIDATE_RQ PSIF_WR_INVALIDATE_CQ
+ * PSIF_WR_INVALIDATE_XRCSRQ PSIF_WR_INVALIDATE_SGL_CACHE
+ */
+struct psif_wr_su {
+ /* PSIF_WR_GENERATE_COMPLETION: This is the WC ID to put in the completion. */
+ union psif_completion_wc_id wc_id;
+ /*
+ * PSIF_WR_INVALIDATE_TLB: this is the address vector to invalidate in the
+ * TLB. PSIF_WR_RESIZE_CQ: this is the new address of the CQ.
+ */
+ u64 addr;
+ /*
+ * PSIF_WR_INVALIDATE_TLB: this is the length for invalidate in the TLB. Only
+ * the lower 16 bits are valid for specifying length of TLB invalidation.
+ * PSIF_WR_RESIZE_CQ: this is the new length of the CQ.
+ */
+ u32 length;
+ /*
+ * PSIF_WR_INVALIDATE_LKEY: key to invalidate/flush from the DMA VT cache.
+ * PSIF_WR_INVALIDATE_RKEY: key to invalidate/flush from the DMA VT cache.
+ * PSIF_WR_INVALIDATE_BOTH_KEYS: key to invalidate/flush from the DMA VT
+ * cache. PSIF_WR_INVALIDATE_TLB: this is the address vector to invalidate in
+ * the TLB.
+ */
+ u32 key;
+#if defined(__GNUC__)
+ union psif_descriptor_union u2;
+
+ #define u2_rq_id u2.rq_id
+ #define u2_xrq_id u2.xrq_id
+ #define u2_cq_id u2.cq_id
+ #define u2_target_qp u2.target_qp
+#else
+ u32 u2:24;
+
+ #define u2_rq_id u2
+ #define u2_xrq_id u2
+ #define u2_cq_id u2
+ #define u2_target_qp u2
+#endif
+ /*
+ * This field is valid for PSIF_WR_GENERATE_COMPLETION. This is the
+ * completion status to put in the completion.
+ */
+ enum psif_wc_status completion_status:8;
+
+ /*
+ * This field is valid for PSIF_WR_GENERATE_COMPLETION. This is the opcode
+ * going into the completion.
+ */
+ enum psif_wc_opcode completion_opcode:8;
+
+ /* Reserved */
+ u64 noname:10;
+ /* This is used by the PSIF_WR_SET_SRQ_LIM request. */
+ u64 srq_lim:14;
+} PSIF_PACKED_ALIGNED; /* struct psif_wr_su [32 byte] */
+
+/* SEND RDMA DM ATOMIC or PRIVILEGED data - depending on opcode. */
+union psif_wr_details {
+ union psif_wr_send_header send;
+ struct psif_wr_rdma rdma;
+ struct psif_wr_rdma atomic;
+ struct psif_wr_su su;
+} PSIF_PACKED; /* union psif_wr_details [32 byte] */
+
+struct psif_wr_xrc {
+ /* Descriptor index for XRC SRQ. */
+ u32 xrqd_id:24;
+ /* Reserved */
+ u32 noname:8;
+} PSIF_PACKED; /* struct psif_wr_xrc [ 4 byte] */
+
+/* PSIF work request. */
+struct psif_wr { /* Subjected to copy and convert */
+ /*
+ * Send queue sequence number. Used to map request to a particular work
+ * request in the send queue.
+ */
+ u16 sq_seq;
+ /* Length (number of bytes of valid data in the collect payload buffer). */
+ u16 collect_length:9;
+ /*
+ * High Bandwidth/Low Latency BAR. The QoSL must be matched against the QoSL
+ * in the QP State. If it is unequal, the QP should be in error.
+ */
+ enum psif_tsu_qos tsu_qosl:1;
+
+ /* Only applicable to UD. This is an indication that AHA should be used. */
+ enum psif_use_ah ud_pkt:1;
+
+ /* Port number to use for QP0/1 packets. This field is ignored if not QP0/1. */
+ enum psif_port port:1;
+
+ /*
+ * The TSL (Tsu SL) must be matched against the TSL in the QP State (XXX: or
+ * in the AHA?). If it is unequal, the QP should be put in error.
+ */
+ u16 tsu_sl:4;
+ /*
+ * QP sending this request. XXX: Should name be own_qp_num as defined in QP
+ * state?
+ */
+ u32 local_qp:24;
+ /* Indicates shat type of request this is. */
+ enum psif_wr_type op:8;
+
+ /* Inlined common : struct psif_wr_common (192 bits) */
+ /* Union between VLAN priority and CQ descriptor ID. */
+#if defined(__GNUC__)
+ union psif_cq_desc_vlan_pri cq_desc_vlan_pri_union;
+ #define cq_desc_vlan_pri_union_cqd_id cq_desc_vlan_pri_union.cqd_id
+#else
+ u64 cq_desc_vlan_pri_union:24;
+ #define cq_desc_vlan_pri_union_cqd_id cq_desc_vlan_pri_union
+#endif
+ /* UF used for all EPS-C QP0/1 packets. This field is ignored otherwise. */
+ u64 srcuf:6;
+ /* Fence indicator. */
+ u64 fence:1;
+ /* Completion notification identifier. */
+ u64 completion:1;
+ /*
+ * EPS tag - used by EPS to associate process and work request. This field is
+ * not used by non-EPS work requests.
+ */
+ u64 eps_tag:16;
+ /* Reserved */
+ u64 noname:2;
+ /* UF used for DR loopback packets. This field is ignored otherwise. */
+ u64 destuf:6;
+ /* Number of SGL entries are valid for this request. */
+ u64 num_sgl:4;
+ /* L4 checksum enabled when set. This is used for EoIB and IPoIB packets. */
+ u64 l4_checksum_en:1;
+ /* L3 checksum enabled when set. This is used for EoIB and IPoIB packets. */
+ u64 l3_checksum_en:1;
+ /* Dynamic MTU is enabled for this work request. */
+ u64 dynamic_mtu_enable:1;
+ /* Solicited event bit to be set in IB packet. */
+ u64 se:1;
+ /* Immediate data is only valid when indicated by the opcode. */
+ u64 imm:32;
+ /*
+ * Checksum used for data protection and consistency between work request and
+ * QP state.
+ */
+ u32 checksum;
+ union psif_wr_details details;
+ /* Manually added spacing to pad out wr */
+ u32 space2;
+ struct psif_wr_xrc xrc_hdr;
+} PSIF_PACKED_ALIGNED; /* struct psif_wr [64 byte] */
+
+/** \brief Table of TSU SL and QoS mappings
+ * \details
+ * Driver queries EPS-C for mapping of privileged QP and Infinband SL to
+ * TSU SL and QoS. These values then need to be applied in QP and WR
+ * as well as selecting hi or low PCIe BAR VCB (tqos) to obtain PSIF TSU
+ * internal traffic separation.
+ */
+struct psif_tsl_map {
+ u16 noname:1;
+ /* PSIF TSU QoS selection */
+ enum psif_tsu_qos m0_tqos:1;
+
+ u16 noname1:2;
+ /* PSIF TSU SL assignmnet */
+ u16 m0_tsl:4;
+ /* Inlined m0 : struct psif_tsl_map_entry (8 bits) */
+ u16 noname2:1;
+ /* PSIF TSU QoS selection */
+ enum psif_tsu_qos m1_tqos:1;
+
+ u16 noname3:2;
+ /* PSIF TSU SL assignmnet */
+ u16 m1_tsl:4;
+ /* Inlined m1 : struct psif_tsl_map_entry (8 bits) */
+ u16 noname4:1;
+ /* PSIF TSU QoS selection */
+ enum psif_tsu_qos m2_tqos:1;
+
+ u16 noname5:2;
+ /* PSIF TSU SL assignmnet */
+ u16 m2_tsl:4;
+ /* Inlined m2 : struct psif_tsl_map_entry (8 bits) */
+ u16 noname6:1;
+ /* PSIF TSU QoS selection */
+ enum psif_tsu_qos m3_tqos:1;
+
+ u16 noname7:2;
+ /* PSIF TSU SL assignmnet */
+ u16 m3_tsl:4;
+ /* Inlined m3 : struct psif_tsl_map_entry (8 bits) */
+ u16 noname8:1;
+ /* PSIF TSU QoS selection */
+ enum psif_tsu_qos m4_tqos:1;
+
+ u16 noname9:2;
+ /* PSIF TSU SL assignmnet */
+ u16 m4_tsl:4;
+ /* Inlined m4 : struct psif_tsl_map_entry (8 bits) */
+ u16 noname10:1;
+ /* PSIF TSU QoS selection */
+ enum psif_tsu_qos m5_tqos:1;
+
+ u16 noname11:2;
+ /* PSIF TSU SL assignmnet */
+ u16 m5_tsl:4;
+ /* Inlined m5 : struct psif_tsl_map_entry (8 bits) */
+ u16 noname12:1;
+ /* PSIF TSU QoS selection */
+ enum psif_tsu_qos m6_tqos:1;
+
+ u16 noname13:2;
+ /* PSIF TSU SL assignmnet */
+ u16 m6_tsl:4;
+ /* Inlined m6 : struct psif_tsl_map_entry (8 bits) */
+ u16 noname14:1;
+ /* PSIF TSU QoS selection */
+ enum psif_tsu_qos m7_tqos:1;
+
+ u16 noname15:2;
+ /* PSIF TSU SL assignmnet */
+ u16 m7_tsl:4;
+ /* Inlined m7 : struct psif_tsl_map_entry (8 bits) */
+} PSIF_PACKED_ALIGNED; /* struct psif_tsl_map [ 8 byte] */
+
+/* Hardware structure indicating what is the next QP. */
+struct psif_next {
+ /*
+ * If all high, the next pointer is null. If next_null == 1, it is transport
+ * timer on evicted QP
+ */
+ u32 next_null:8;
+ /* QP number for the next QP to be processed. */
+ u32 next_qp_num:24;
+} PSIF_PACKED; /* struct psif_next [ 4 byte] */
+
+/* Response (ACK) data structure used by the response queue descriptor. */
+struct psif_rspq_ack_data {
+ /* ib_aeth_msn(24[0] bits)Message Sequence Number */
+ u32 msn:24;
+ /* ib_aeth_syndrome(8[0] bits)Syndrome */
+ u32 syndrome:8;
+ /* ib_bth_psn(24[0] bits)Packet Sequence Number */
+ u32 psn:24;
+ enum ib_opcode opcode:8;
+
+} PSIF_PACKED_ALIGNED; /* struct psif_rspq_ack_data [ 8 byte] */
+
+/* Response descriptor structure used by the response queue descriptor. */
+struct psif_rspq_rsp_descriptor {
+ /* ib_bth_psn(24[0] bits)Packet Sequence Number */
+ u32 head_count_sched:24;
+ /* resp_sched_sched_ptr(5[0] bits) * Write pointer type to rdma read and atomic data stored in reqsponse queue
+ * descriptor. Every time an rdma read and atomic is performed, this pointer
+ * is incremented.
+ */
+ u32 head_sched_ptr:5;
+ u32 head_ack:1;
+ u32 head_dup_ack:1;
+ u32 rspq_done:1;
+ /* QP and UF to be processed next. */
+ struct psif_next rspq_next;
+ struct psif_rspq_ack_data tail_ack_aeth;
+ /* psn divided in two to mitigate for 64 bit bondary crossing */
+ u16 psn_0_7:8;
+ /* Inlining rspq_ack_data_t tail_dup_ack_aeth due to bondary violation */
+ enum ib_opcode opcode:8;
+
+ u64 tail_dup_ack:1;
+ /* Reserved */
+ u64 noname:7;
+ /* ib_bth_psn(24[0] bits)Packet Sequence Number */
+ u64 tail_count_sched:24;
+ /* resp_sched_sched_ptr(5[0] bits) * Write pointer type to rdma read and atomic data stored in reqsponse queue
+ * descriptor. Every time an rdma read and atomic is performed, this pointer
+ * is incremented.
+ */
+ u64 tail_sched_ptr:5;
+ /* Reserved */
+ u64 noname1:3;
+ u64 tail_ack:1;
+ /*
+ * This bit is set through the doorbell. SW should initialize this bit to 0
+ * when the QP is setup and check this bit plus psif_next = null to ensure SW
+ * can own the RSPQ descriptor
+ */
+ u64 destroyed:1;
+ /* Reserved */
+ u64 noname2:6;
+ /* Reserved */
+ u64 noname3:16;
+ /* ib_aeth_msn(24[0] bits)Message Sequence Number */
+ u64 msn:24;
+ /* ib_aeth_syndrome(8[0] bits)Syndrome */
+ u64 syndrome:8;
+ u64 psn_8_23:16;
+} PSIF_PACKED_ALIGNED; /* struct psif_rspq_rsp_descriptor [32 byte] */
+
+/* Temp.definition of content */
+struct psif_sq_tvl {
+ /* Content pt. not defined in ASIC XML */
+ u64 something_tbd[2];
+} PSIF_PACKED_ALIGNED; /* struct psif_sq_tvl [16 byte] */
+
+/* This is the portion of the descriptor which is updated by software. */
+struct psif_sq_sw { /* Subjected to copy and convert */
+ /* Info: Edge padding added (for endian convert) */
+ u32 space3;
+ /*
+ * Index to where elements are added to the send queue by SW. SW is
+ * responsibel for keeping track of how many entries there are in the send
+ * queue. I.e. SW needs to keep track of the head_index so it doesn't
+ * overwrite entries in the send queue which is not yet completed.
+ */
+ u16 tail_indx;
+ /* Reserved */
+ u16 noname:16;
+} PSIF_PACKED_ALIGNED; /* struct psif_sq_sw [ 8 byte] */
+
+/* Temp.definition of content */
+struct psif_sq_rspq {
+ /* Content pt. not defined in ASIC XML */
+ u64 something_tbd[52];
+} PSIF_PACKED_ALIGNED; /* struct psif_sq_rspq [416 byte] */
+
+/* Descriptor used by the send queue scheduler to operate on the send queue. */
+struct psif_sq_hw { /* Subjected to copy and convert */
+ u16 u_1;
+ /*
+ * Send queue sequence number used by the SQS to maintain ordering and keep
+ * track of where which send queue elements to fetch. This field is not in
+ * sync with the field in qp_t. This number is typically a little bit before
+ * the number in the qp_t as SQS has to fetch the elements from host memory.
+ * This is also used as tail_index when checking if there are more elements
+ * in the send queue.
+ */
+ u16 last_seq;
+ /* QP and UF to be processed next. */
+ struct psif_next sq_next;
+ /* Maximum inline data length supported by this send queue. */
+ u32 sq_max_inline:9;
+ /* Maximum number of SGEs supported by this send queue. */
+ u32 size_log2:4;
+ /* Maximum number of SGEs supported by this send queue. */
+ u32 sq_max_sge:5;
+ /*
+ * The size between each work queue element in the send queue. This is the
+ * shift value to use in order to find the start of a work queue element.
+ */
+ u32 extent_log2:5;
+ /*
+ * Indication if this QP is configured as a low latency or high throughput
+ * quality of service level.
+ */
+ u32 qos:1;
+ /*
+ * Timestamp qualifier. This bit is set when retry is entered to the queue
+ * and clear when the timestamp has expired.
+ */
+ u32 sq_timestamp_valid:1;
+ /*
+ * Done[0] is set when the last SQ WR is processed (sq_sequence_number ==
+ * tail_indx). When done[0] is set, SQS only process the SQ WR when
+ * sq_sequence_number != tail_index. Done[1] is set when done[0] is set and
+ * sq_sequence_number == tail_index.
+ */
+ u32 sq_done:2;
+ /*
+ * This bit is set through the doorbell. SW should check this bit plus
+ * psif_next = null to ensure SW can own the SQ descriptor.
+ */
+ u32 destroyed:1;
+ /* Reserved */
+ u32 noname:4;
+ u32 u_2;
+ /* The base address to the send queue. */
+ u64 base_addr;
+ /* The MMU context used to get the send queue. */
+ struct psif_mmu_cntx mmu_cntx;
+} PSIF_PACKED_ALIGNED; /* struct psif_sq_hw [32 byte] */
+
+/* Temp.definition of Send queue content */
+struct psif_sq_entry { /* Subjected to copy and convert */
+ /* Content pt. not defined in ASIC XML */
+ struct psif_wr wr;
+ u64 payload[32];
+} PSIF_PACKED_ALIGNED; /* struct psif_sq_entry [320 byte] */
+
+/**
+ * SQS ring buffer entry
+ */
+struct psif_sq_ring {
+ u64 something;
+} PSIF_PACKED_ALIGNED; /* struct psif_sq_ring [ 8 byte] */
+
+/* Temp. definition of the send queue entry cache for the completion block.
+ * The only info used by the driver is the size of this struct,
+ * when allocating space for the cache in memory:
+ */
+struct psif_sq_cmpl {
+ /* Content pt. not defined in ASIC XML */
+ u64 payload[8];
+} PSIF_PACKED_ALIGNED; /* struct psif_sq_cmpl [64 byte] */
+
+/* Recveive queue scatter entry. */
+struct psif_rq_scatter {
+ /* Base address for this scatter element. */
+ u64 base_addr;
+ /* L-Key to be used for this scatter element. */
+ u32 lkey;
+ /* Length of scatter element. */
+ u32 length;
+} PSIF_PACKED_ALIGNED; /* struct psif_rq_scatter [16 byte] */
+
+/* Data type for TSU_RQH_QP_BASE_ADDR - rq scratch pad
+ * Layout as defined by struct psif_rq_entry
+ */
+struct psif_rqsp {
+ /*
+ * Receive queue entry ID. This is added to the receive completion using this
+ * receive queue entry.
+ */
+ u64 rqe_id;
+ /* Scatter entries for this receive queue element. */
+ struct psif_rq_scatter scatter[16];
+} PSIF_PACKED_ALIGNED; /* struct psif_rqsp [264 byte] */
+
+/* This is the part of the descriptor which is updated by SW (user space). */
+struct psif_rq_sw { /* Subjected to copy and convert */
+ /* Info: Edge padding added (for endian convert) */
+ u32 space4;
+ /* Software modified index pointing to the tail reecive entry in host memory. */
+ u32 tail_indx:14;
+ /* Reserved */
+ u32 noname:18;
+} PSIF_PACKED_ALIGNED; /* struct psif_rq_sw [ 8 byte] */
+
+struct psif_rq_hw { /* Subjected to copy and convert */
+ /*
+ * If set to something greater than zero, event notification is armed. An
+ * Affiliated Synchronous Event will be sent when number of WQE are less than
+ * srq_lim.
+ */
+ u32 srq_lim:14;
+ /*
+ * Hardware modified index pointing to the head of the receive queue. TSU is
+ * using this to find the address of the receive queue entry.
+ */
+ u32 head_indx:14;
+ /* This is the shift value to use to find start of the receive queue element. */
+ u32 extent_log2:4;
+ /* pd(24[0] bits)Protection domain. */
+ u32 pd:24;
+ /* This is indicating how many scatter entries are valid. */
+ u32 scatter:4;
+ /* Reserved */
+ u32 noname:1;
+ /* The shared receive queue is in error. */
+ u32 srq_err:1;
+ /* This is a shared receive queue. This is always set for XRCSRQs. */
+ u32 srq:1;
+ /*
+ * Do not evict this entry if this bit is set. There can only be a fixed
+ * number of descriptors with this bit set. XXX: Should this be used as a
+ * hint, or should it be fixed?
+ */
+ u32 sticky:1;
+ /* Hardware updated portion of descriptor. */
+ /* Inlined hw_no_pad : struct psif_rq_no_pad (256 bits) */
+ /* Base address for the receive queue in host memory. */
+ u64 base_addr;
+ struct psif_mmu_cntx mmu_cntx;
+ /* Reserved */
+ u64 noname1:55;
+ /* The desciptor is valid. */
+ u64 valid:1;
+ /*
+ * Pre-fetch threshold (clog2) indicating when to read the software portion
+ * of the descriptor. If there are less entries than indicated by this
+ * threshold, the software portion of the descriptor must be read.
+ */
+ u64 prefetch_threshold_log2:4;
+ /*
+ * Log2 size of the receive queue. Maximum number of entries in the receive
+ * queue. This is used for calculating when to wrap the head and tail
+ * indexes.
+ */
+ u64 size_log2:4;
+} PSIF_PACKED_ALIGNED; /* struct psif_rq_hw [32 byte] */
+
+/* A receive queue entry structure contianing scatter entries. */
+struct psif_rq_entry { /* Subjected to copy and convert */
+ /*
+ * Receive queue entry ID. This is added to the receive completion using this
+ * receive queue entry.
+ */
+ u64 rqe_id;
+ /* Scatter entries for this receive queue element. */
+ struct psif_rq_scatter scatter[16];
+} PSIF_PACKED_ALIGNED; /* struct psif_rq_entry [264 byte] */
+
+/* This is the portion of the descriptor which is updated by software. */
+struct psif_rb_sw { /* Subjected to copy and convert */
+ /* Info: Edge padding added (for endian convert) */
+ u32 space5;
+ /* Index to ring buffer elements added by SW. */
+ u32 head_indx;
+} PSIF_PACKED_ALIGNED; /* struct psif_rb_sw [ 8 byte] */
+
+/*
+ * Descriptor entry for a ring buffer. This entry is used to address into the
+ * ring buffer and write the correct entries. This structure is the hardware
+ * updateable part of the RB descriptor.
+ */
+struct psif_rb_hw { /* Subjected to copy and convert */
+ /* Index to ring buffer elements to be consumed by HW. */
+ u32 tail_indx;
+ /*
+ * Log2 size of the ring buffer. The entries are specified as 64B entities.
+ * The number indicates when the tail_index should wrap. If one message is
+ * running over the edge, the message is stored in consecutive entries
+ * outside the ring buffer. max_message_size additional space is added to the
+ * edge of the buffer.
+ */
+ u32 size_log2:5;
+ /*
+ * Interrupt channel associated with the event queue. In the PSIF design the
+ * event queues are one to one with interrupt channel.
+ */
+ u32 int_channel:7;
+ /* Reserved */
+ u32 noname:11;
+ /* rb_size_log2(5[0] bits)Log2 size of the ring buffer. */
+ u32 max_size_log2:5;
+ /* The descriptor is valid. */
+ u32 valid:1;
+ /*
+ * When this bit is set, the solicited bit is used in order to send events to
+ * event queues.
+ */
+ u32 armed:1;
+ /*
+ * This functionality is not valid unless armed is set. If set and incoming
+ * message has SE bit set, an event should be generated to the event queue
+ * indicated by eventq_dscr_id. If not set, an event is sent reqardless of
+ * the value of the SE bit in the incoming message.
+ */
+ u32 filter_se:1;
+ /* Do not evict this entry if this bit is set. */
+ u32 sticky:1;
+ struct psif_mmu_cntx mmu_cntx;
+ /*
+ * VA or PA of the base of the completion queue. If PA the MMU context above
+ * will be a bypass context. Updated by software. The head and tail pointers
+ * can be calculated by the following calculations: Address = base_ptr +
+ * (head * 64B ) Head Pointer and Tail Pointer will use the same MMU context
+ * as the base, and all need to be VA from one address space, or all need to
+ * be PA. In typical use, to allow direct user access to the head and tail
+ * pointer VAs are used.
+ */
+ u64 base_addr;
+ /* XXX: should this be defined as rb_sequence_number_t? */
+ u32 sequence_number;
+ /* pd(24[0] bits)Protection domain. */
+ u32 pd:24;
+ /*
+ * Pre-fetch threshold (clog2) indicating when to read the software portion
+ * of the descriptor. If there are less entries than indicated by this
+ * threshold, the software portion of the descriptor must be read.
+ */
+ u32 prefetch_threshold_log2:5;
+ /* Reserved */
+ u32 noname1:3;
+} PSIF_PACKED_ALIGNED; /* struct psif_rb_hw [32 byte] */
+
+/*
+ * Ring buffer header. A ring buffer header is preceding payload data when
+ * written to host memory. The full message with RB header and payload data
+ * is padded out to become a multiple of 64 bytes. The last 4 bytes of every
+ * 64B data written, will contain the ring buffer sequence number.
+ */
+struct psif_rb_entry { /* Subjected to copy and convert */
+ /* Length of data associated with this ring buffer header. */
+ u32 byte_len;
+ /* ib_bth_qp_number(24[0] bits)Queue Pair */
+ u32 qp_num:24;
+ /* Applicable only if this is for EPS-A. */
+ enum psif_eps_a_core eps_a_core:2;
+
+ /* Reserved */
+ u32 noname:3;
+ /*
+ * Defining the packet type the headers valid for this ring buffer.
+ * PSIF_RB_TYPE_INVALID PSIF_RB_TYPE_DM_PUT PSIF_RB_TYPE_DM_GET_RESP
+ * PSIF_RB_TYPE_RCV_PROXY_COMPLETION
+ * PSIF_RB_TYPE_RCV_PROXY_COMPLETION_AND_DATA
+ * PSIF_RB_TYPE_SEND_PROXY_COMPLETION PSIF_RB_TYPE_SEND_COMPLETION
+ */
+ enum psif_rb_type pkt_type:3;
+
+ /* Payload bulk */
+ u64 payload[6];
+ /* sequence number for sanity checking */
+ u32 seq_num;
+ /* Payload last */
+ u32 payload_tail;
+} PSIF_PACKED_ALIGNED; /* struct psif_rb_entry [64 byte] */
+
+/*
+ * QP state information as laid out in system memory. This structure should
+ * be used to cast the state information stored to a register.
+ */
+struct psif_qp_core { /* Subjected to copy and convert */
+ /*
+ * This retry tag is the one used by tsu_rqs and added to the packets sent to
+ * tsu_dma. It is the responsibility of tsu_rqs to update this retry tag
+ * whenever the sq_sequence_number in QP state is equal to the one in the
+ * request.
+ */
+ u32 retry_tag_committed:3;
+ /*
+ * This retry tag is updated by the error block when an error occur. If
+ * tsu_rqs reads this retry tag and it is different than the
+ * retry_tag_comitted, tsu_rqs must update retry_tag_comitted to the value of
+ * retry_tag_err when the sq_sequence_number indicates this is the valid
+ * request. The sq_sequence_number has been updated by tsu_err at the same
+ * time the retry_tag_err is updated.
+ */
+ u32 retry_tag_err:3;
+ /*
+ * If the DMA is getting an L-Key violation or an error from PCIe when
+ * fetching data for requests, it has to set this bit. When set, all requests
+ * behind must be marked in error and not transmitted on IB. Responses are
+ * sent as normal.
+ */
+ u32 req_access_error:1;
+ /*
+ * If the DMA is getting an R-Key violation or an error from PCIe when
+ * fetching data for RDMA read responses, it has to set this bit. When set,
+ * all packets sitting behind the RDMA read on this QP (requests and
+ * responses), must be marked bad so they are not transmitted on IB.
+ */
+ u32 resp_access_error:1;
+ /*
+ * The XRC domain is used to check against the XRC domain in the XRCSRQ
+ * descriptor indexed by the request. If the XRC domain matches, the
+ * protection domain in the XRCSRQ descriptor is used instead of the
+ * protection domain associated with the QP.
+ */
+ u32 xrc_domain:24;
+ /*
+ * Error retry counter initial value. Read by tsu_dma and used by tsu_cmpl to
+ * calculate exp_backoff etc..
+ */
+ u32 error_retry_init:3;
+ /*
+ * Retry counter associated with retries to received NAK or implied NAK. If
+ * it expires, a path migration will be attempted if it is armed, or the QP
+ * will go to error state. Read by tsu_dma and used by tsu_cmpl.
+ */
+ u32 error_retry_count:3;
+ /*
+ * When 1, indicates that the receive queue of this QP is a shared receive
+ * queue. This bit is used by tsu_err to classify errors.
+ */
+ u32 cq_in_err:1;
+ /* A hit in the set locally spun out of tsu_cmpl is found. */
+ u32 spin_hit:1;
+ /* Send queue extent - the clog2 size between the work requests. */
+ u32 sq_clog2_extent:5;
+ /* The size (log2 number of entries) of the send queue. */
+ u32 sq_clog2_size:4;
+ /*
+ * Current number of outstanding read or atomic requests. Intialize to zero.
+ * It is updated by tsu_rqs every time a new read or atomic requests is
+ * transmitted.
+ */
+ u32 current_outstanding:5;
+ /*
+ * Current number of retired read or atomic requests. Initialze to zero.
+ * Updated by tsu_cmpl every time a read or atomic request is completed.
+ */
+ u32 current_retired:5;
+ /*
+ * This is a multicast QP, and is creating UC multicasts. The is_multicast
+ * bit is based on the destination QP being the multicast QP number
+ * (0xffffff). When the QP is not a UD QP, this bit is forwarded to DMA as
+ * the is_multicast bit.
+ */
+ u32 is_multicast:1;
+ /*
+ * Indication that a receive queue access is in progress. The bit is set on a
+ * Send First packet and cleared on a Send Last packet. It is used to
+ * indicate if there exists an RQ which can be re-used in the case of UC
+ * transport packet drop.
+ */
+ u32 dscr_rq_in_progress:1;
+ /* Bit used internally in tsu_cmpl. */
+ u32 first_at_floor_seen:1;
+ /*
+ * When 1, indicates that the receive queue of this QP is a shared receive
+ * queue. This bit is used by tsu_err to classify errors.
+ */
+ u32 rq_is_srq:1;
+ /*
+ * If set, this QP will not be evicted unless QP state is filled up by QPs
+ * with this bit set.
+ */
+ u32 do_not_evict:1;
+ /*
+ * Minium RNR NAK timeout. This is added to RNR NAK packets and the requester
+ * receiving the RNR NAK must wait until the timer has expired before the
+ * retry is sent.
+ */
+ u32 min_rnr_nak_time:5;
+ /* QP State for this QP. */
+ enum psif_qp_state state:3;
+
+ /* QP number for the remote node. */
+ u32 remote_qp:24;
+ /* R-Key of received multipacket message. */
+ u32 rcv_rkey;
+ /*
+ * Number of bytes received for in progress RDMA RD Responses. This is
+ * maintained by tsu_cmpl.
+ */
+ u32 rcv_bytes;
+ /* sq_seq(16[0] bits) * Send queue sequence number. This sequence number is used to make sure
+ * order is maintained for requests sent from the process/host.
+ */
+ u16 retry_sq_seq;
+ /* sq_seq(16[0] bits) * Send queue sequence number. This sequence number is used to make sure
+ * order is maintained for requests sent from the process/host.
+ */
+ u16 sq_seq;
+ /*
+ * Magic number used to verify use of QP state. This is done by calculating a
+ * checksum of the work request incorporating the magic number. This checksum
+ * is checked against the checksum in the work request.
+ */
+ u32 magic;
+ /*
+ * Completion queue sequence number. This is used for privileged requests,
+ * where sequence number for one CQ is added to a different completion.
+ */
+ u32 cq_seq;
+ /*
+ * Q-Key received in incoming IB packet is checked towards this Q-Key. Q-Key
+ * used on transmit if top bit of Q-Key in WR is set.
+ */
+ u32 qkey;
+ /* When 1 indicates that we have an IB retry outstanding. */
+ u32 ib_retry_outstanding:1;
+ /* When 1 indicates that we have a fence retry outstanding. */
+ u32 fence_retry_outstanding:1;
+ /*
+ * When 1, indicates that we have started a flush retry. SQ or QP in error.
+ * Must be cleared on modify QP - SQErr to RTS.
+ */
+ u32 flush_started:1;
+ /*
+ * Bit used for internal use when QP is moved to error and error completions
+ * etc should be sent. Should alway be initialized to zero by SW.
+ */
+ u32 request_handled:1;
+ /*
+ * This is set by CMPL when there are outstanding requests and a TX error is
+ * received from DMA. It is cleared when the error is sent on.
+ */
+ enum psif_cmpl_outstanding_error outstanding_error:4;
+
+ /*
+ * Sequence number of the last ACK received. Read and written by tsu_cmpl.
+ * Used to verify that the received response packet is a valid response.
+ */
+ u32 last_acked_psn:24;
+ /* Offset within scatter element of in progress SEND. */
+ u32 scatter_offs;
+ /* Index to scatter element of in progress SEND. */
+ u32 scatter_indx:5;
+ /*
+ * 2 bits (next_opcode) 0x0: No operation in progress 0x1: Expect SEND middle
+ * or last 0x2: Expect RDMA_WR middle or last
+ */
+ enum psif_expected_op expected_opcode:2;
+
+ /*
+ * When 1, indicates that a psn_nak has been sent. Need a valid request in
+ * order to clear the bit.
+ */
+ u32 psn_nak:1;
+ /*
+ * Expected packet sequence number: Sequence number on next expected packet.
+ */
+ u32 expected_psn:24;
+ /*
+ * Timeout timestamp - if the timer is running and the timestamp indicates a
+ * timeout, a retry iss issued.
+ */
+ u64 timeout_time:48;
+ /*
+ * When 1, indicates that a NAK has been for committed_psn+1. Need a valid
+ * request in order to clear the bit. This means receiving a good first/only
+ * packet for the committed_psn+1.
+ */
+ u64 nak_sent:1;
+ /*
+ * TSU quality of service level. Can take values indicating low latency and
+ * high throughput. This is equivalent to high/low BAR when writing doorbells
+ * to PSIF. The qosl bit in the doorbell request must match this bit in the
+ * QP state, otherwise the QP must be put in error. This check only applies
+ * to tsu_rqs.
+ */
+ enum psif_tsu_qos qosl:1;
+
+ /*
+ * Migration state (migrated, re-arm and armed). Since path migration is
+ * handled by tsu_qps, this is controlled by tsu_qps. XXX: Should error
+ * handler also be able to change the path?
+ */
+ enum psif_migration mstate:2;
+
+ /* This is an Ethernet over IB QP. */
+ u64 eoib_enable:1;
+ /* This is an IB over IB QP. */
+ u64 ipoib_enable:1;
+ /*
+ * Enable header/data split for offloading. Header and data should end up in
+ * separate scatter elements.
+ */
+ u64 hdr_split_enable:1;
+ /*
+ * Dynamic MTU is enabled - i.e. incoming requests can have 256B payload
+ * instead of MTU size specified in QP state.
+ */
+ u64 rcv_dynamic_mtu_enable:1;
+ /*
+ * This is a proxy QP. Packets less than a particular size are forwarded to
+ * EPS-A core indicated in the CQ descriptor.
+ */
+ u64 proxy_qp_enable:1;
+ /* Enable capability for RSS. */
+ u64 rss_enable:1;
+ /* Reserved */
+ u64 noname:2;
+ /* PSIF specific capability enable for receiving Masked Atomic operations. */
+ u64 masked_atomic_enable:1;
+ /* IB defined capability enable for receiving Atomic operations. */
+ u64 atomic_enable:1;
+ /* IB defined capability enable for receiving RDMA WR. */
+ u64 rdma_wr_enable:1;
+ /* IB defined capability enable for receiving RDMA RD. */
+ u64 rdma_rd_enable:1;
+ /* Receive capabilities enabled for this QP. */
+ /* Inlined rcv_cap : struct psif_qp_rcv_cap (64 bits) */
+ /*
+ * Transmit packet sequence number. Read and updated by tsu_dma before
+ * sending packets to tsu_ibpb and tsu_cmpl.
+ */
+ u64 xmit_psn:24;
+ /*
+ * Retry transmit packet sequence number. This is the xmit_psn which should
+ * be used on the first packet of a retry. This is set by tsu_err. When
+ * tsu_dma see that a packet is the first of a retry, it must use this psn as
+ * the xmit_psn and write back xmit_psn as this psn+1.
+ */
+ u64 retry_xmit_psn:24;
+ /*
+ * Index to scatter element of in progress RDMA RD response. This field does
+ * not need to be written to host memory.
+ */
+ u64 resp_scatter_indx:5;
+ /*
+ * An error is found by tsu_cmpl. All packets on this QP is forwarded to
+ * tsu_err until this bit is cleared. The bit is cleared either from QP
+ * cleanup or when tsu_cmpl is receiving is_retry.
+ */
+ u64 rc_in_error:1;
+ /* The timestamp is valid and will indicate when to time out the request.. */
+ u64 timer_running:1;
+ /*
+ * TSU Service Level used to decide the TSU VL for requests associated with
+ * this QP.
+ */
+ u64 tsl:4;
+ /*
+ * Maximum number of outstanding read or atomic requests allowed by the
+ * remote HCA. Initialized by software.
+ */
+ u64 max_outstanding:5;
+ /*
+ * DMA length found in first packet of inbound request. When last packet is
+ * received, it must be made sure the dmalen and received_bytes are equal.
+ */
+ u32 dmalen;
+ /* Send Queue RNR retry count initialization value. */
+ u32 rnr_retry_init:3;
+ /*
+ * Retry counter associated with RNR NAK retries. If it expires, a path
+ * migration will be attempted if it is armed, or the QP will go to error
+ * state.
+ */
+ u32 rnr_retry_count:3;
+ /*
+ * When this bit is set, ordering from the send queue is ignored. The
+ * sq_sequence_number check in the RQS is ignored. When the bit is not set,
+ * sq_sequence_number check is done. This bit must be set for QP0 and QP1.
+ */
+ u32 no_ordering:1;
+ /*
+ * When set, RQS should only check that the orig_checksum is equal to magic
+ * number. When not set, RQS should perform the checksum check towards the
+ * checksum in the psif_wr.
+ */
+ u32 no_checksum:1;
+ /*
+ * This is an index to a receive queue descriptor. The descriptor points to
+ * the next receive queue element to be used. Receive queues are used for IB
+ * Send and RDMA Writes with Immediate data.
+ */
+ u32 rq_indx:24;
+ /*
+ * Transport type of the QP (RC, UC, UD, XRC, MANSP1). MANSP1 is set for
+ * privileged QPs.
+ */
+ enum psif_qp_trans transport_type:3;
+
+ /* Reserved */
+ u32 noname1:5;
+ /*
+ * This is an index to completion queue descriptor. The descriptor points to
+ * a receive completion queue, which may or may not be the same as the send
+ * completion queue. For XRC QPs, this field is written by the CQ descriptor
+ * received by the XRCSRQ on the first packet. This way we don't need to look
+ * up the XRCSRQ for every packet. of the message.
+ */
+ u32 rcv_cq_indx:24;
+ /*
+ * Number of bytes received of in progress RDMA Write or SEND. The data
+ * received for SENDs and RDMA WR w/Imm are needed for completions. This
+ * should be added to the msg_length.
+ */
+ u32 bytes_received;
+ /*
+ * Offloading type for EoIB. Indicating how the Enforcement of EoIB is done
+ * by PSIF.
+ */
+ enum psif_eoib_type eoib_type:2;
+
+ /* PSIF specific exponential backoff enable. */
+ u32 exp_backoff_enable:1;
+ /*
+ * The privileged QP is not so privileged, which means that it is not allowed
+ * to perform all privileged requests.
+ */
+ u32 not_so_privileged:1;
+ /*
+ * Dynamic MTU is enabled - i.e. requests can use 256B payload instead of
+ * what is specified in QP state.
+ */
+ u32 send_dynamic_mtu_enable:1;
+ /* This QP is running IP over IB. */
+ u32 ipoib:1;
+ /* This QP is running Ethernet over IB. */
+ u32 eoib:1;
+ /* Send capabilities enabled for this QP. */
+ /* Inlined send_cap : struct psif_qp_snd_cap (64 bits) */
+ /* Used for retry handling. */
+ u32 wait_for_psn:1;
+ /*
+ * The counter is taken from the response packet and stored. tsu_host is
+ * using this value to decide if we go into or out of response scheduling
+ * mode.
+ */
+ u32 resp_sched_count_done:24;
+ /*
+ * The counter is compared towards the resp_sched_count_done and incremented
+ * every time a packet is sent to the SQS.
+ */
+ u32 resp_sched_count_sched:24;
+ /*
+ * Write pointer for the scheduling of responses. Host is updating and
+ * forwarding this to tsu_sqs.
+ */
+ u32 resp_sched_sched_ptr:5;
+ /*
+ * Set when entering response scheduling mode and cleared when going out of
+ * the mode. We exit this mode when resp_sched_count_sched ==
+ * resp_sched_count_done.
+ */
+ u32 resp_sched_mode:1;
+ /*
+ * Flag indicating if the swap in the last atomic swap operation was
+ * performed or not. If swapped, the next RDMA WR should be performed towards
+ * host memory. If not swapped, the next RDMA WR should not be performed
+ * towards host memory, but should be ACK'ed at the IB level as normal.
+ */
+ enum psif_bool swapped:1;
+
+ /*
+ * This bit is set by RQS when a TSU_RQS_MAX_OUTSTANDING_REACHED_ERR or
+ * TSU_RQS_REQUEST_FENCED_ERR error is seen and cleared when the first packet
+ * of a retry is seen. While this bit is set, all packets towards DMA shall
+ * have the TSU_RQS_SEQNUM_ERR set.
+ */
+ u32 retry_needed:1;
+ /*
+ * Combined 'Last Received MSN' and 'Last Outstanding MSN', used to maintain
+ * 'spin set floor' and indicate 'all retries completed', respectively.
+ */
+ u16 last_received_outstanding_msn;
+ /* Reserved */
+ u64 noname2:41;
+ /*
+ * This bit is set when a HOST initiated NAK is sent due to errors when
+ * handling an atomic. When this bit is set, no data is forwarded to EPS or
+ * XIU, and no responses or ACK/NAKs should be forwarded to RQS.
+ */
+ u64 host_sent_nak:1;
+ /*
+ * This bit indicates that the QP is now handling responses in a safe manner
+ * with respect to MSN values in the incoming IB packets.
+ */
+ u64 in_safe_mode:1;
+ /*
+ * This is set when the field operation_successful == 0 from HOST. It is used
+ * to make sure that no good completion is to be sent after an atomic error
+ * has occurred. When set, the QP state is moved to error when seen on the
+ * exec side.
+ */
+ u64 atomic_error:1;
+ /*
+ * When this bit is not equal to apm_failed_event_needed, CBLD should send an
+ * event and set this bit equal to apm_failed_event_needed. When the QP is
+ * initialized, this value should be set equal to apm_failed_event_needed.
+ */
+ u64 apm_failed_event_sent:1;
+ /*
+ * When this bit is not equal to apm_success_event_needed, CBLD should send
+ * an event and set this bit equal to apm_success_event_needed. When the QP
+ * is initialized, this value should be set equal to
+ * apm_success_event_needed.
+ */
+ u64 apm_success_event_sent:1;
+ /* This is inverted by the APM module when an event should be sent. */
+ u64 apm_failed_event_needed:1;
+ /* This is inverted by the APM module when an event should be sent. */
+ u64 apm_success_event_needed:1;
+ /*
+ * Request address. In the case of RDMA WR, this is the current write
+ * pointer. In the case of a SEND, this is the address to the receive queue
+ * element.
+ */
+ u64 req_addr;
+ /*
+ * Write pointer to atomic data stored in QP. Every time an atomic operation
+ * is performed, the original atomic data is stored in order be to returned
+ * in the event of duplicate atomic.
+ */
+ u32 orig_atomic_wr_ptr:4;
+ enum psif_path_mtu path_mtu:3;
+
+ /*
+ * Communication established bit. When a packet is received when in RTR
+ * state, this bit should be set, and an asynchronous event should be sent.
+ */
+ enum psif_comm_live comm_established:1;
+
+ /* This PSN is committed - ACKs sent will contain this PSN. */
+ u32 committed_received_psn:24;
+ /*
+ * Offset within scatter element of in progress RDMA RD response. This field
+ * does not need to be written to host memory.
+ */
+ u32 resp_scatter_offs;
+ /*
+ * Message sequence number used in AETH when sending ACKs. The number is
+ * incremented every time a new inbound message is processed.
+ */
+ u64 msn:24;
+ /*
+ * This is an index to send completion queue descriptor. The descriptor
+ * points to a send completion queue, which may or may not be the same as the
+ * send completion queue.
+ */
+ u64 send_cq_indx:24;
+ /*
+ * Committed MSN - the MSN of the newest committed request for this QP. Only
+ * the bottom 16 bits of the MSN is used.
+ */
+ u64 last_committed_msn:16;
+ /* pd(24[0] bits)Protection domain. */
+ u64 srq_pd:24;
+ /* pd(24[0] bits)Protection domain. */
+ u64 pd:24;
+ /*
+ * This is the eps_tag to be used in the case there is an outstanding error
+ * detected in CMPL. The field is owned CMPL and is used for internal
+ * handling.
+ */
+ u64 eps_tag:16;
+} PSIF_PACKED_ALIGNED; /* struct psif_qp_core [128 byte] */
+
+/*
+ * Path specific information. This is information which can be different for
+ * primary and alternate path.
+ */
+struct psif_qp_path { /* Subjected to copy and convert */
+ u64 remote_gid_0;
+ /* Inlined grh : struct psif_grh (192 bits) */
+ u64 remote_gid_1;
+ /* ib_lrh_lid(16[0] bits)Local ID */
+ u16 remote_lid;
+ /* gid_indx(1[0] bits)GID index indicating which of the UFs two GIDs are used. */
+ u64 gid_indx:1;
+ enum psif_port port:1;
+
+ enum psif_loopback loopback:1;
+
+ enum psif_use_grh use_grh:1;
+
+ /* ib_lrh_sl(4[0] bits)Service Level */
+ u64 sl:4;
+ /* Reserved */
+ u64 noname:4;
+ /* ib_grh_hoplmt(8[0] bits)Hop Limit */
+ u64 hoplmt:8;
+ /* ib_grh_tclass(8[0] bits)Traffic Class */
+ u64 tclass:8;
+ /* ib_grh_flowl(20[0] bits)Flow Label */
+ u64 flowlabel:20;
+ /* Reserved */
+ u64 noname1:26;
+ /* Reserved field - used by hardware for error handling on PCIe errors. */
+ u64 path_invalid:1;
+ /* timeout(5[0] bits) * Local ACK timeout. This is the exponent used to calculate the delay before
+ * an ACK is declared 'lost'
+ */
+ u64 local_ack_timeout:5;
+ /* ipd(8[0] bits)Inter packet delay. Encoded as specified in IB spec. */
+ u64 ipd:8;
+ /* Reserved */
+ u64 noname2:8;
+ /*
+ * This is the LID path bits. This is used by tsu_ibpb when generating the
+ * SLID in the packet, and it is used by tsu_rcv when checking the DLID.
+ */
+ u64 local_lid_path:7;
+ /* pkey_indx(9[0] bits)Index into the P-Key table. */
+ u64 pkey_indx:9;
+} PSIF_PACKED_ALIGNED; /* struct psif_qp_path [32 byte] */
+
+/* Query QP structure. */
+struct psif_query_qp {
+ /* QP state information from query. */
+ struct psif_qp_core qp;
+ /* Primary path information. */
+ struct psif_qp_path primary_path;
+ /* Alternate path information. */
+ struct psif_qp_path alternate_path;
+} PSIF_PACKED_ALIGNED; /* struct psif_query_qp [192 byte] */
+
+/*
+ * Modify/query QP attributes. Bit mask indicating which field should be
+ * modified.
+ */
+struct psif_qp_attributes {
+ /* Do not modify unless current state is as indicated in command. */
+ u16 use_current_state:1;
+ /* Change max outstanding RD/ATOMIC towards destination. */
+ u16 max_outstanding:1;
+ /* Change the xmit psn (SQ PSN) when set. */
+ u16 xmit_psn:1;
+ /* Change the RNR retry count when set. */
+ u16 rnr_retry_count:1;
+ /* Change the retry count when set. */
+ u16 error_retry_count:1;
+ /* Change the RNR minimum timer value when set. */
+ u16 min_rnr_nak_time:1;
+ /* Change the local ack timeout when set. */
+ u16 local_ack_timeout:1;
+ /* Change P-Key index if set. */
+ u16 pkey_index:1;
+ /* Change the Q-Key when set. */
+ u16 qkey:1;
+ /* Change the receive capabilities when set. */
+ u16 qp_rcv_cap:1;
+ /* Change the state of the QP when set. */
+ u16 qp_state:1;
+ /* Change alternate path if set. */
+ u16 alt_path:1;
+ /*
+ * Change migration state if set. In some cases this might lead to a path
+ * migration.
+ */
+ u16 mig_state:1;
+ /* Change primary path if set. */
+ u16 prim_path:1;
+ /* Change expected PSN (RQ PSN) if set. */
+ u16 expected_psn:1;
+ /* Change path MTU if set. */
+ u16 path_mtu:1;
+ /* Change path req_access error if set. */
+ u8 req_access_error:1;
+ /* Manually added spacing to pad outpsif_qp_attributes */
+ u8 pad05:7;
+} PSIF_PACKED; /* struct psif_qp_attributes [ 3 byte] */
+
+/* XXX: This is how the QP state in host memory is organized. */
+struct psif_qp { /* Subjected to copy and convert */
+ struct psif_qp_core state;
+ /*
+ * Path information for path A specific for this QP connection. This field
+ * only makes sense for QPs using connected mode. For datagram mode, this
+ * information comes from the AHA.
+ */
+ struct psif_qp_path path_a;
+ /*
+ * Path information for path B specific for this QP connection. This field
+ * only makes sense for QPs using connected mode. For datagram mode, this
+ * information comes from the AHA.
+ */
+ struct psif_qp_path path_b;
+} PSIF_PACKED_ALIGNED; /* struct psif_qp [192 byte] */
+
+/* Temp.definition of collect buffers */
+struct psif_cb { /* Subjected to copy and convert */
+ /* Content pt. not defined in ASIC XML */
+ struct psif_wr wr;
+ u64 payload[32];
+} PSIF_PACKED_ALIGNED; /* struct psif_cb [320 byte] */
+
+/* Temp.definition of PCIe WR BAR SQS WR layout = first 8 bytes of WR */
+struct psif_pcie_sqs_wr {
+ /*
+ * Send queue sequence number. Used to map request to a particular work
+ * request in the send queue.
+ */
+ u16 sq_seq;
+ /* Length (number of bytes of valid data in the collect payload buffer). */
+ u16 collect_length:9;
+ /*
+ * High Bandwidth/Low Latency BAR. The QoSL must be matched against the QoSL
+ * in the QP State. If it is unequal, the QP should be in error.
+ */
+ enum psif_tsu_qos tsu_qosl:1;
+
+ /* Only applicable to UD. This is an indication that AHA should be used. */
+ enum psif_use_ah ud_pkt:1;
+
+ /* Port number to use for QP0/1 packets. This field is ignored if not QP0/1. */
+ enum psif_port port:1;
+
+ /*
+ * The TSL (Tsu SL) must be matched against the TSL in the QP State (XXX: or
+ * in the AHA?). If it is unequal, the QP should be put in error.
+ */
+ u16 tsu_sl:4;
+ /*
+ * QP sending this request. XXX: Should name be own_qp_num as defined in QP
+ * state?
+ */
+ u32 local_qp:24;
+ /*
+ * XXX: Naming - do we want to use opcode for this also, or should we use
+ * pkt_type.
+ */
+ enum psif_wr_type op:8;
+
+} PSIF_PACKED_ALIGNED; /* struct psif_pcie_sqs_wr [ 8 byte] */
+
+/* Temp.definition of PCIe WR BAR layout */
+struct psif_pcie_wr {
+ struct psif_cb cb;
+ u64 reserved_1[464];
+ struct psif_pcie_sqs_wr sqs_wr;
+ u64 reserved_2[6];
+ u64 clear;
+} PSIF_PACKED_ALIGNED; /* struct psif_pcie_wr [4096 byte] */
+
+struct psif_mbox {
+ /* Host posting to EPS-x */
+
+ u64 in;
+ /* EPS-x posting to Host */
+
+ u64 out;
+} PSIF_PACKED_ALIGNED; /* struct psif_mbox [16 byte] */
+
+struct psif_pcie_mbox {
+ /* MBOX_EPS_MAX mbox'es for all the EPS's */
+
+ struct psif_mbox eps[5];
+ /* (Reset all mailboxes) */
+
+ u64 eps_reset;
+} PSIF_PACKED_ALIGNED; /* struct psif_pcie_mbox [88 byte] */
+
+/* Modify QP structure. */
+struct psif_modify_qp {
+ /*
+ * Current number of retired read or atomic requests. Initialze to zero.
+ * Updated by tsu_cmpl every time a read or atomic request is completed.
+ */
+ u16 max_outstanding:5;
+ /* QP State for this QP. */
+ enum psif_qp_state state:3;
+
+ /*
+ * Minium RNR NAK timeout. This is added to RNR NAK packets and the requester
+ * receiving the RNR NAK must wait until the timer has expired before the
+ * retry is sent.
+ */
+ u16 min_rnr_nak_time:5;
+ /*
+ * Error retry counter initial value. Read by tsu_dma and used by tsu_cmpl to
+ * calculate exp_backoff etc..
+ */
+ u16 error_retry_count:3;
+ /* This is an Ethernet over IB QP. */
+ u16 eoib_enable:1;
+ /* This is an IB over IB QP. */
+ u16 ipoib_enable:1;
+ /*
+ * Enable header/data split for offloading. Header and data should end up in
+ * separate scatter elements.
+ */
+ u16 hdr_split_enable:1;
+ /*
+ * Dynamic MTU is enabled - i.e. incoming requests can have 256B payload
+ * instead of MTU size specified in QP state.
+ */
+ u16 rcv_dynamic_mtu_enable:1;
+ /*
+ * This is a proxy QP. Packets less than a particular size are forwarded to
+ * EPS-A core indicated in the CQ descriptor.
+ */
+ u16 proxy_qp_enable:1;
+ /* Enable capability for RSS. */
+ u16 rss_enable:1;
+ /* Reserved */
+ u16 noname:2;
+ /* PSIF specific capability enable for receiving Masked Atomic operations. */
+ u16 masked_atomic_enable:1;
+ /* IB defined capability enable for receiving Atomic operations. */
+ u16 atomic_enable:1;
+ /* IB defined capability enable for receiving RDMA WR. */
+ u16 rdma_wr_enable:1;
+ /* IB defined capability enable for receiving RDMA RD. */
+ u16 rdma_rd_enable:1;
+ /* Receive capabilities enabled for this QP. */
+ /* Inlined rcv_cap : struct psif_qp_rcv_cap (64 bits) */
+ /*
+ * Retry counter associated with RNR NAK retries. If it expires, a path
+ * migration will be attempted if it is armed, or the QP will go to error
+ * state.
+ */
+ u16 rnr_retry_count:3;
+ /*
+ * If the DMA is getting an L-Key violation or an error from PCIe when
+ * fetching data for requests, it has to set this bit. When set, all requests
+ * behind must be marked in error and not transmitted on IB. Responses are
+ * sent as normal.
+ */
+ u16 req_access_error:1;
+ /* Q-Key received in incoming IB packet is checked towards this Q-Key. */
+ u32 rx_qkey;
+ /*
+ * Transmit packet sequence number. Read and updated by tsu_dma before
+ * sending packets to tsu_ibpb and tsu_cmpl.
+ */
+ u32 xmit_psn:24;
+ /* Reserved */
+ u32 noname1:8;
+ /*
+ * Migration state (migrated, re-arm and armed). Since path migration is
+ * handled by tsu_qps, this is controlled by tsu_qps. XXX: Should error
+ * handler also be able to change the path?
+ */
+ enum psif_migration mstate:2;
+
+ /* Reserved */
+ u32 noname2:3;
+ /* Path MTU. */
+ enum psif_path_mtu path_mtu:3;
+
+ /*
+ * Receive packet sequence number. Read and updated by tsu_dscr before
+ * passing packets to tsu_rqh.
+ */
+ u32 expected_psn:24;
+ /* Primary path information. */
+ struct psif_qp_path primary_path;
+ /* Alternate path information. */
+ struct psif_qp_path alternate_path;
+} PSIF_PACKED_ALIGNED; /* struct psif_modify_qp [80 byte] */
+
+/* QP number UF and command for either modify or query QP. */
+struct psif_modify_command {
+ /* Manually added spacing to pad out psif_modify_command */
+ u32 pad06:3;
+ /*
+ * This will arm interrupt to be sent when the refcount for the QP index used
+ * have reached zero. It should be used when modify to Reset - when interrupt
+ * is seen, there are no outstanding transactions towards RQs or CQs for the
+ * QP, and it should be safe to take these queues down.
+ */
+ u32 notify_when_zero:1;
+ /* QP number for this operation. */
+ u32 qp_num:24;
+ /* Current state the QP must be in to do the modification. */
+ enum psif_qp_state current_state:3;
+
+ /*
+ * Port number used for accesses to QP0/1. This field is don't care for all
+ * other QPs.
+ */
+ enum psif_port port_num:1;
+
+ /* UF this QP belongs to. */
+ u8 uf:6;
+ /* Command indicating operation - query or modify. */
+ enum psif_qp_command cmd:2;
+
+} PSIF_PACKED; /* struct psif_modify_command [ 5 byte] */
+
+/*
+ * Structure defining DMA Key Validation entries. This structure is specific
+ * to IB and has information about R/L-Key states. One entry kan represent an
+ * R-Key, an L-Key or both at the same time. This is is decided bythe key
+ * states.
+ */
+struct psif_key {
+ /* Reserved */
+ u32 noname:24;
+ /*
+ * If this bit is set, the va in the key is used as an offset to the base
+ * address given in this descriptor.
+ */
+ u32 zero_based_addr_en:1;
+ /*
+ * If this bit is set, it means that this memory region is enabled for
+ * conditional RDMA write. The bit must be added to the header at tsu_val and
+ * follow the request towards tsu_host. When tsu_host receives this bit, it
+ * is checking the 'swapped' bit in the QP state in order to decide if the
+ * payload is written to host memory or not.
+ */
+ u32 conditional_wr:1;
+ /* Atomic access enabled. */
+ u32 local_access_atomic:1;
+ /* Write access enabled. */
+ u32 local_access_wr:1;
+ /* Read access enabled. */
+ u32 local_access_rd:1;
+ /*
+ * Local access rights. Used for L-Key accesses when this is a valid L-Key.
+ * Must be set correctly by SW so that RD access is always set.
+ */
+ /* Inlined local_access : struct psif_dma_vt_mem_access (64 bits) */
+ /* Atomic access enabled. */
+ u32 remote_access_atomic:1;
+ /* Write access enabled. */
+ u32 remote_access_wr:1;
+ /* Read access enabled. */
+ u32 remote_access_rd:1;
+ /* Remote access rights. Used for R-Key accesses when this is a valid R-Key. */
+ /* Inlined remote_access : struct psif_dma_vt_mem_access (64 bits) */
+ /* pd(24[0] bits)Protection domain. */
+ u32 pd:24;
+ /* Reserved */
+ u32 noname1:4;
+ /* L-key state for this DMA validation entry */
+ enum psif_dma_vt_key_states lkey_state:2;
+
+ /* R-key state for this DMA validation entry */
+ enum psif_dma_vt_key_states rkey_state:2;
+
+ /* Length of memory region this validation entry is associated with. */
+ u64 length;
+ struct psif_mmu_cntx mmu_context;
+ /* host_address(64[0] bits)Host address used for accesses to/from TSU HOST. */
+ u64 base_addr;
+} PSIF_PACKED_ALIGNED; /* struct psif_key [32 byte] */
+
+/**
+ * Flash image header format for application image
+ * extension of struct psif_flash_header_all
+ */
+struct psif_flash_header_app {
+ /* byte[0:3] signature is 0xdeadbeef */
+ u32 signature;
+ /* byte[4:7] image type */
+ enum psif_flash_image_type type:32;
+
+ /* byte[8:11] SHRDMEM start address */
+ u32 exec_base;
+ /* byte[12:15] code/data size */
+ u32 image_length;
+ /* byte[16:19] SHRDMEM ZI base address */
+ u32 zi_base;
+ /* byte[20:23] ZI size */
+ u32 zi_length;
+ /* byte[24:27] Storage only used by boot loader */
+ u32 flash_base;
+ /* byte[28:31] Execution start address */
+ u32 start_addr;
+ /* byte[32:35] SHRDMEM address base of low vectors */
+ u32 low_vec_base;
+ /* byte[36:39] Flash address base of low vectors */
+ u32 low_vec_flash_base;
+ /* byte[40:43] Size of low vectors */
+ u32 low_vec_length;
+ /* byte[44:47] FLASH_DATE_LEN > = sizeof(__DATE__) */
+ u8 date[4];
+ /* byte[48:55] */
+ u8 date_1[8];
+ /* byte[56:59] */
+ u8 date_2[4];
+ /* byte[60:63] FLASH_TIME_LEN > = sizeof(__TIME__) */
+ u8 time[4];
+ /* byte[64:71] */
+ u8 time_1[8];
+ /* byte[72:79] FLASH_REV_STR_LEN > = sizeof(REV_STRING) */
+ u8 rev_string[8];
+ /* byte[80:83] checkssum_ptr - this value + 4 equals the size of the immage in bytes */
+ u32 checksum_ptr;
+ /* byte[84:87] */
+ u32 app_vec_flash_base;
+ /* byte[88:91] */
+ u32 app_vec_base;
+ /* byte[92:95] */
+ u32 app_vec_length;
+} PSIF_PACKED_ALIGNED; /* struct psif_flash_header_app [96 byte] */
+
+/**
+ * Flash image header format
+ * Note: image length is not valid for the boot loader image itself (64k bytes)
+ * struct is always located at offset 0x800 within an image
+ */
+struct psif_flash_header_all {
+ /* byte[0:3] signature of 0xdeadbeef */
+ u32 signature;
+ /* byte[4:7] image type */
+ enum psif_flash_image_type type:32;
+
+ /* byte[8:11] execution base */
+ u32 base;
+ /* byte[12:15] image length.
+ The length is defined in bytes and starts at offset 0x0A00 into the image. */
+ u32 length;
+} PSIF_PACKED_ALIGNED; /* struct psif_flash_header_all [16 byte] */
+
+/* This is the portion of the descriptor which is updated by software. */
+struct psif_eq_sw {
+ /* Index to event elements consumed by SW. */
+ u32 head_indx;
+} PSIF_PACKED; /* struct psif_eq_sw [ 4 byte] */
+
+/*
+ * Descriptor entry for an event queue. This entry is used to address into
+ * the event queue and write the correct entries. This structure is the
+ * hardware updateable part of the EQ descriptor.
+ */
+struct psif_eq_hw {
+ /*
+ * Event queue sequence number. This is the sequence number to be used for
+ * this event. When used by a client, it is incremented and written back to
+ * this descriptor.
+ */
+ u32 sequence_number;
+ /*
+ * The size (log2 number of entries) of the event queue. This is used for
+ * calculating when to wrap the head and tail indexes.
+ */
+ u32 size_log2:5;
+ /*
+ * The size between event queue entries. This is the shift value to find the
+ * start of the next entry.
+ */
+ u32 extent_log2:5;
+ /* The descriptor is valid. */
+ u32 valid:1;
+ /* Inlined ctrl : struct psif_eq_ctrl (64 bits) */
+ /* Reserved */
+ u32 noname:21;
+ struct psif_mmu_cntx mmu_cntx;
+ /*
+ * VA or PA of the base of the queue. If PA the MMU context above will be a
+ * bypass context. Updated by software. The head and tail pointers can be
+ * calculated by the following calculations: Address = base_ptr + (head *
+ * ($bits(event_entry_t)/8 ) Head Pointer and Tail Pointer will use the same
+ * MMU context as the base, and all need to be VA from one address space, or
+ * all need to be PA. In typical use, to allow direct user access to the head
+ * and tail pointer VAs are used.
+ */
+ u64 base_addr;
+ /* Info: Edge padding added (for endian convert) */
+ u32 space6;
+ /* Index to event queue elements added by HW. */
+ u32 tail_indx;
+} PSIF_PACKED_ALIGNED; /* struct psif_eq_hw [32 byte] */
+
+/* Event queue entry. */
+struct psif_eq_entry {
+ enum psif_eps_core_id eps_core_id:4;
+
+ /* vendor_fields(3[0] bits)Should this be an enum? */
+ u32 vendor_fields:3;
+ /* IB port number */
+ enum psif_port port:1;
+
+ /* Completion queue descriptor ID. */
+ u32 cqd_id:24;
+ /* Error field indicating vendor error when this is an error event. */
+ enum psif_tsu_error_types vendor_error:8;
+
+ /*
+ * The port_flags are only applicable for port type events. These are not set
+ * from the TSU, but implemented from EPS.
+ */
+ u16 port_flags:4;
+ /* PSIF_EVENT_EPS_A. */
+ u16 event_status_eps_a:1;
+ /* PSIF_EVENT_EPS_C. */
+ u16 event_status_eps_c:1;
+ /* PSIF_EVENT_CMPL_NOTIFY. */
+ u16 event_status_cmpl_notify:1;
+ /* PSIF_EVENT_PORT_ERROR. */
+ u16 event_status_port_error:1;
+ /* PSIF_EVENT_LOCAL_CATASTROPHIC_ERROR. */
+ u16 event_status_local_catastrophic_error:1;
+ /* PSIF_EVENT_PORT_CHANGED. */
+ u16 event_status_port_changed:1;
+ /* PSIF_EVENT_CLIENT_REGISTRATION. */
+ u16 event_status_client_registration:1;
+ /* PSIF_EVENT_PORT_ACTIVE. */
+ u16 event_status_port_active:1;
+ /* PSIF_EVENT_LOCAL_WORK_QUEUE_CATASTROPHIC_ERROR. */
+ u16 event_status_local_work_queue_catastrophic_error:1;
+ /* PSIF_EVENT_SRQ_CATASTROPHIC_ERROR. */
+ u16 event_status_srq_catastrophic_error:1;
+ /* PSIF_EVENT_INVALID_XRCETH. */
+ u16 event_status_invalid_xrceth:1;
+ /* PSIF_EVENT_XRC_DOMAIN_VIOLATION. */
+ u16 event_status_xrc_domain_violation:1;
+ /* PSIF_EVENT_PATH_MIGRATION_REQUEST_ERROR. */
+ u16 event_status_path_migration_request_error:1;
+ /* PSIF_EVENT_LOCAL_ACCESS_VIOLATION_WQ_ERROR. */
+ u16 event_status_local_access_violation_wq_error:1;
+ /* PSIF_EVENT_INVALID_REQUEST_LOCAL_WQ_ERROR. */
+ u16 event_status_invalid_request_local_wq_error:1;
+ /* PSIF_EVENT_CQ_ERROR. */
+ u16 event_status_cq_error:1;
+ /* PSIF_EVENT_LAST_WQE_REACHED. */
+ u16 event_status_last_wqe_reached:1;
+ /* PSIF_EVENT_SRQ_LIMIT_REACHED. */
+ u16 event_status_srq_limit_reached:1;
+ /* PSIF_EVENT_COMMUNICATION_ESTABLISHED. */
+ u16 event_status_communication_established:1;
+ /* PSIF_EVENT_PATH_MIGRATED. */
+ u16 event_status_path_migrated:1;
+ /* Inlined event_status : struct psif_event_status (64 bits) */
+ /* LID. */
+ u16 lid;
+ /* QP number. */
+ u64 qp:24;
+ /* Receive queue descriptor ID. */
+ u64 rqd_id:24;
+ /* Event type if port_flags is PSIF_EVENT_EXTENSION */
+ enum psif_event extension_type:32;
+
+ /* Completion queue sequence number causing the event to be sent. */
+ u32 cq_sequence_number;
+ /* More info on event */
+ u64 event_info;
+ /* Additional data on event */
+ u64 event_data;
+ /* Padding out struct bulk */
+ u64 reserved[2];
+ /* sequence number for sanity checking */
+ u32 seq_num;
+ /* Padding out struct last */
+ u32 noname:32;
+} PSIF_PACKED_ALIGNED32; /* struct psif_eq_entry [64 byte] */
+
+/**
+ * CSR Query port structure
+ */
+struct psif_epsc_port_attr {
+ /** port state */
+ enum psif_epsc_port_state state:32;
+
+ /** port number */
+ u32 portNumber;
+ /** currently configured path MTU */
+ enum psif_epsc_path_mtu active_mtu:32;
+
+ /** maximum supported path MTU */
+ enum psif_epsc_path_mtu max_mtu:32;
+
+ u32 port_cap_flags;
+ u32 gid_tbl_len;
+ u32 bad_pkey_cntr;
+ u32 max_msg_sz;
+ u16 lid;
+ u16 pkey_tbl_len;
+ u32 qkey_viol_cntr;
+ u16 active_width:8;
+ u16 init_type_reply:8;
+ u16 subnet_timeout:8;
+ u16 sm_sl:8;
+ u16 max_vl_num:8;
+ u16 lmc:8;
+ u16 sm_lid;
+ u64 noname:48;
+ u64 phys_state:8;
+ enum psif_port_speed active_speed:8;
+
+ u64 pad;
+} PSIF_PACKED_ALIGNED32; /* struct psif_epsc_port_attr [64 byte] */
+
+struct psif_epsc_log_stat {
+ /* Owned by epsc runs all the way to 64 bit */
+ u64 produce_offset;
+ /* Owned by host */
+ u64 consume_offset;
+ /* Owned by host real offset modulo sz */
+ u64 size;
+ /* Allign to 32 byte */
+ u64 pad;
+} PSIF_PACKED_ALIGNED; /* struct psif_epsc_log_stat [32 byte] */
+
+/**
+ * Query GID response in host memory
+ */
+struct psif_epsc_gid_attr {
+ u64 gid_0;
+ u64 gid_1;
+} PSIF_PACKED_ALIGNED; /* struct psif_epsc_gid_attr [16 byte] */
+
+/**
+ * Populate MMU table
+ */
+struct psif_epsc_exercise_mmu {
+ /* Start address */
+ u64 host_addr;
+ /* MMU context supplied by driver */
+ struct psif_mmu_cntx mmu_cntx;
+ /* Buffer length in bytes */
+ u64 length;
+ /* Stride in bytes */
+ u64 stride;
+ u64 reserved[7];
+} PSIF_PACKED_ALIGNED; /* struct psif_epsc_exercise_mmu [88 byte] */
+
+/**
+ * CSR Query device structure
+ */
+struct psif_epsc_device_attr {
+ u64 fw_ver;
+ u64 sys_image_guid;
+ u64 node_guid;
+ u64 max_mr_size;
+ u64 page_size_cap;
+ u32 vendor_part_id;
+ u32 vendor_id;
+ u32 max_qp;
+ u32 hw_ver;
+ u32 device_cap_flags;
+ u32 max_qp_wr;
+ u32 max_sge_rd;
+ u32 max_sge;
+ u32 max_cqe;
+ u32 max_cq;
+ u32 max_pd;
+ u32 max_mr;
+ u32 max_ee_rd_atom;
+ u32 max_qp_rd_atom;
+ u32 max_qp_init_rd_atom;
+ u32 max_res_rd_atom;
+ enum psif_epsc_atomic_cap atomic_cap:32;
+
+ u32 max_ee_init_rd_atom;
+ u32 max_ee;
+ enum psif_epsc_atomic_cap masked_atomic_cap:32;
+
+ u32 max_mw;
+ u32 max_rdd;
+ u32 max_raw_ethy_qp;
+ u32 max_raw_ipv6_qp;
+ u32 max_mcast_qp_attach;
+ u32 max_mcast_grp;
+ u32 max_ah;
+ u32 max_total_mcast_qp_attach;
+ u32 max_map_per_fmr;
+ u32 max_fmr;
+ u32 max_srq_wr;
+ u32 max_srq;
+ u32 max_fast_reg_page_list_len;
+ u32 max_srq_sge;
+ u64 noname:8;
+ u64 phys_port_cnt:32;
+ u64 local_ca_ack_delay:8;
+ u64 max_pkeys:16;
+ u64 pad;
+} PSIF_PACKED_ALIGNED32; /* struct psif_epsc_device_attr [192 byte] */
+
+/**
+ * For data in response structure of EPSC_BER_DATA Op.
+ */
+struct psif_epsc_csr_rsp_ber_data {
+ /* Received signal values (H0 values) for each Serdes Channel per port.
+ status_rxd_reg0 in Sonoma PRM */
+ u64 received_signal_values[4];
+ /* Number of elements is same as psif_epsc_csr_ber_counters enum */
+ u64 ber_counters[5];
+} PSIF_PACKED_ALIGNED; /* struct psif_epsc_csr_rsp_ber_data [72 byte] */
+
+/**
+ * The eps-c fw csr to host sw completion
+ * Response to a CSR request
+ */
+struct psif_epsc_csr_rsp {
+ /* Address from request */
+ u32 addr;
+ /* Data integrity */
+ u16 crc;
+ /* enum psif_epsc_csr_opcode from request */
+ enum psif_epsc_csr_opcode opcode:8;
+
+ /* return status of operation */
+ enum psif_epsc_csr_status status:8;
+
+ /* Data from operation */
+ u64 data;
+ /* Info from operation */
+ u64 info;
+ /* Sequence number from request */
+ u64 seq_num;
+} PSIF_PACKED_ALIGNED32; /* struct psif_epsc_csr_rsp [32 byte] */
+
+struct psif_epsc_csr_opaque {
+ u64 data[11];
+} PSIF_PACKED_ALIGNED; /* struct psif_epsc_csr_opaque [88 byte] */
+
+struct psif_epsc_csr_single {
+ u64 data;
+ u64 reserved[10];
+} PSIF_PACKED_ALIGNED; /* struct psif_epsc_csr_single [88 byte] */
+
+/**
+ * \brief Padded base address structure
+ * \details
+ * With this structure the driver provides the information needed be the
+ * firmware to set up queue, queue pair and address handle descriptor base
+ * addresses before they can be used.
+ * \par Used in
+ * psif_epsc_csr_details for \ref EPSC_SET_BASEADDR and
+ * \ref EPSC_SET_BASEADDR_EQ mailbox requests
+ * \par Classification
+ * driver
+ */
+struct psif_epsc_csr_base_addr {
+ /** base address in host memory to be used for the descriptor */
+ u64 address;
+ /** MMU context for `address` */
+ struct psif_mmu_cntx mmu_context;
+ /**
+ * Size of an entry as log2 value. The address to an entry is calculated
+ * as host_addr + entry_num*(1 << extent_log2).
+ */
+ u32 extent_log2:5;
+ /** unused (padding) */
+ u32 noname:27;
+ /** number of entries in the table */
+ u32 num_entries;
+ /** unused (padding) */
+ u32 noname1:32;
+ /** MSI-X interrupt index only valid for EQ setup */
+ u32 msix_index;
+ /** unused (padding) */
+ u64 padding[7];
+} PSIF_PACKED_ALIGNED; /* struct psif_epsc_csr_base_addr [88 byte] */
+
+/* CSR automated type for TSU_QPS_MODIFY_QP_CTRL */
+/*
+ * Per UF modify/query QP command/attribute register. Only one register is
+ * implemented in hardware - one at a time. EPS implements one register per
+ * UF. When one is written, the modify data is written to modify_qp_data
+ * register before this register is written. The Modify or Query QP command
+ * is autmatically kicked when this register is written. Is one outstanding
+ * modify/query QP per UF ok, or do we need more?
+ */
+struct psif_csr_modify_qp_ctrl {
+ /* Do not modify unless current state is as indicated in command. */
+ u16 use_current_state:1;
+ /* Change max outstanding RD/ATOMIC towards destination. */
+ u16 max_outstanding:1;
+ /* Change the xmit psn (SQ PSN) when set. */
+ u16 xmit_psn:1;
+ /* Change the RNR retry count when set. */
+ u16 rnr_retry_count:1;
+ /* Change the retry count when set. */
+ u16 error_retry_count:1;
+ /* Change the RNR minimum timer value when set. */
+ u16 min_rnr_nak_time:1;
+ /* Change the local ack timeout when set. */
+ u16 local_ack_timeout:1;
+ /* Change P-Key index if set. */
+ u16 pkey_index:1;
+ /* Change the Q-Key when set. */
+ u16 qkey:1;
+ /* Change the receive capabilities when set. */
+ u16 qp_rcv_cap:1;
+ /* Change the state of the QP when set. */
+ u16 qp_state:1;
+ /* Change alternate path if set. */
+ u16 alt_path:1;
+ /*
+ * Change migration state if set. In some cases this might lead to a path
+ * migration.
+ */
+ u16 mig_state:1;
+ /* Change primary path if set. */
+ u16 prim_path:1;
+ /* Change expected PSN (RQ PSN) if set. */
+ u16 expected_psn:1;
+ /* Change path MTU if set. */
+ u16 path_mtu:1;
+ /* Change path req_access error if set. */
+ u64 req_access_error:1;
+ /* Manually added spacing to pad outpsif_qp_attributes */
+ u64 pad10:7;
+ /* Inlined cmd_attributes : struct psif_qp_attributes (24 bits) */
+ /* Manually added spacing to pad out psif_modify_command */
+ u64 pad11:3;
+ /*
+ * This will arm interrupt to be sent when the refcount for the QP index used
+ * have reached zero. It should be used when modify to Reset - when interrupt
+ * is seen, there are no outstanding transactions towards RQs or CQs for the
+ * QP, and it should be safe to take these queues down.
+ */
+ u64 notify_when_zero:1;
+ /* QP number for this operation. */
+ u64 qp_num:24;
+ /* Current state the QP must be in to do the modification. */
+ enum psif_qp_state current_state:3;
+
+ /*
+ * Port number used for accesses to QP0/1. This field is don't care for all
+ * other QPs.
+ */
+ enum psif_port port_num:1;
+
+ /* UF this QP belongs to. */
+ u64 uf:6;
+ /* Command indicating operation - query or modify. */
+ enum psif_qp_command cmd:2;
+
+ /* Inlined cmd : struct psif_modify_command (40 bits) */
+} PSIF_PACKED_ALIGNED; /* struct psif_csr_modify_qp_ctrl [ 8 byte] */
+
+/**
+ * Modify QP CSR structure
+ */
+struct psif_epsc_csr_modify_qp {
+ struct psif_csr_modify_qp_ctrl ctrl;
+ struct psif_modify_qp data;
+} PSIF_PACKED_ALIGNED; /* struct psif_epsc_csr_modify_qp [88 byte] */
+
+/**
+ * Query QP
+ *
+ * int ibv_query_qp(struct ibv_qp *qp, struct ibv_qp_attr *attr, enum
+ * ibv_qp_attr_mask attr_mask, struct ibv_qp_init_attr *init_attr)
+ *
+ * Input Parameters:
+ * qp struct ibv_qp from ibv_create_qp
+ * attr_mask bitmask of items to query (see ibv_modify_qp)
+ * Output Parameters:
+ * attr struct ibv_qp_attr to be filled in with requested attributes
+ * init_attr struct ibv_qp_init_attr to be filled in with initial
+ * attributes
+ * Return Value:
+ * 0 on success, errno on failure.
+ */
+struct psif_epsc_csr_query_qp {
+ /* host_address(64[0] bits)Host address used for accesses to/from TSU HOST. */
+ u64 address;
+ struct psif_csr_modify_qp_ctrl ctrl;
+ /* MMU context supplied by driver */
+ struct psif_mmu_cntx mmu_cntx;
+ u64 padding[8];
+} PSIF_PACKED_ALIGNED; /* struct psif_epsc_csr_query_qp [88 byte] */
+
+/* CSR automated type for TSU_RQS_P{1,2}_OWN_LID_BASE */
+/*
+ * Own LIDs base and LMC. Potentially all own LID bits come from the QP state
+ * entry. The number of bits to use is based on the LMC. Per UF register.
+ */
+struct psif_csr_own_lid_base {
+ u64 gid_flag:1;
+ /* lmc(3[0] bits)LID Mask Control data type. */
+ u64 lmc:3;
+ /* ib_lrh_lid(16[0] bits)Local ID */
+ u64 lid_base:16;
+ u64 noname:44;
+} PSIF_PACKED_ALIGNED; /* struct psif_csr_own_lid_base [ 8 byte] */
+
+/* CSR automated type for TSU_IBPB_P{1,2}_OWN_LID_BASE */
+/*
+ * Own LIDs base and LMC. Potentially all own LID bits come from the QP state
+ * entry. The number of bits to use is based on the LMC. Per UF register.
+ */
+struct psif_csr_snd_lid {
+ /* lmc(3[0] bits)LID Mask Control data type. */
+ u64 lmc:3;
+ /* ib_lrh_lid(16[0] bits)Local ID */
+ u64 lid_base:16;
+ u64 noname:45;
+} PSIF_PACKED_ALIGNED; /* struct psif_csr_snd_lid [ 8 byte] */
+
+/* CSR automated type for TSU_IBPR_P{1,2}_OWN_LID_BASE */
+/*
+ * Own LIDs base and LMC. Potentially all own LID bits come from the QP state
+ * entry. The number of bits to use is based on the LMC. Per UF register.
+ */
+struct psif_csr_rcv_lid {
+ /* If set GID routing must be used. */
+ u64 gid_flag:1;
+ /* LID mask control. */
+ u64 lmc:3;
+ /* LID base. */
+ u64 lid_base:16;
+ /* Inlined data : struct psif_lid_base (64 bits) */
+ u64 noname:44;
+} PSIF_PACKED_ALIGNED; /* struct psif_csr_rcv_lid [ 8 byte] */
+
+/**
+ * EPSC_SET_LID
+ */
+struct psif_epsc_csr_set_lid {
+ struct psif_csr_own_lid_base lid_rqs;
+ struct psif_csr_snd_lid lid_snd;
+ struct psif_csr_rcv_lid lid_rcv;
+ u64 noname:48;
+ /* Index pt. not used (PSIF.ARCH.03.12 and later) */
+ u64 index:8;
+ u64 port:8;
+ u64 padding[7];
+} PSIF_PACKED_ALIGNED; /* struct psif_epsc_csr_set_lid [88 byte] */
+
+/**
+ * EPSC_SET_GID{,_P1,_P2}
+ */
+struct psif_epsc_csr_set_gid {
+ u64 gid_0;
+ u64 gid_1;
+ u64 noname:48;
+ u64 index:8;
+ u64 port:8;
+ u64 padding[8];
+} PSIF_PACKED_ALIGNED; /* struct psif_epsc_csr_set_gid [88 byte] */
+
+/**
+ * EPSC_SET_EOIB_MAC
+ */
+struct psif_epsc_csr_set_eoib_mac {
+ u64 mac;
+ u64 noname:48;
+ u64 index:8;
+ u64 port:8;
+ u64 padding[9];
+} PSIF_PACKED_ALIGNED; /* struct psif_epsc_csr_set_eoib_mac [88 byte] */
+
+/**
+ * Set EPSC_SET_VLINK_STATE
+ */
+struct psif_epsc_csr_vlink_state {
+ u64 noname:52;
+ enum psif_vlink_state vlink_state:5;
+
+ enum psif_port port:1;
+
+ /* universal_function(6[0] bits)UF */
+ u64 uf:6;
+ u64 padding[10];
+} PSIF_PACKED_ALIGNED; /* struct psif_epsc_csr_vlink_state [88 byte] */
+
+/**
+ * EPSC_QUERY_DEVICE, EPSC_QUERY_PORT, EPSC_QUERY_INFO,
+ */
+struct psif_epsc_csr_query_hw {
+ /* host_address(64[0] bits)Host address used for accesses to/from TSU HOST. */
+ u64 address;
+ /* MMU context supplied by driver */
+ struct psif_mmu_cntx mmu_cntx;
+ u64 padding[9];
+} PSIF_PACKED_ALIGNED; /* struct psif_epsc_csr_query_hw [88 byte] */
+
+/**
+ * EPSC_QUERY_PKEY, EPSC_QUERY_GID,
+ */
+struct psif_epsc_csr_query_table {
+ u64 noname:40;
+ u64 index:16;
+ u64 port:8;
+ u64 padding[10];
+} PSIF_PACKED_ALIGNED; /* struct psif_epsc_csr_query_table [88 byte] */
+
+/**
+ * EPSC_MC_ATTACH, EPSC_MC_DETACH, EPSC_QUERY_MC
+ */
+struct psif_epsc_csr_mc {
+ u32 noname:32;
+ u32 qp:24;
+ u32 port:8;
+ u64 mgid_0;
+ u64 mgid_1;
+ u64 padding[8];
+} PSIF_PACKED_ALIGNED; /* struct psif_epsc_csr_mc [88 byte] */
+
+/**
+ * EPSC_EVENT_ACK
+ */
+struct psif_epsc_csr_event {
+ u32 eq_index;
+ u16 noname:16;
+ u16 eq_num:8;
+ u16 port:8;
+ /* Will become : psif_eq_event event */
+ u64 event[8];
+ u64 padding[2];
+} PSIF_PACKED_ALIGNED; /* struct psif_epsc_csr_event [88 byte] */
+
+/**
+ * EPSC_MODIFY_DEVICE
+ */
+struct psif_epsc_csr_modify_device {
+ u64 noname:48;
+ enum psif_epsc_csr_modify_device_flags modify_mask:16;
+
+ u64 sys_image_guid;
+ u8 node_desc[64];
+ u64 padding;
+} PSIF_PACKED_ALIGNED; /* struct psif_epsc_csr_modify_device [88 byte] */
+
+/**
+ * EPSC_MODIFY_PORT_{1,2}
+ */
+struct psif_epsc_csr_modify_port {
+ u32 noname:32;
+ u16 init_type:8;
+ u16 port:8;
+ enum psif_epsc_csr_modify_port_flags modify_mask:16;
+
+ u32 clr_port_cap_mask;
+ u32 set_port_cap_mask;
+ u64 reserved[9];
+} PSIF_PACKED_ALIGNED; /* struct psif_epsc_csr_modify_port [88 byte] */
+
+/**
+ * Test operations : EPSC_TEST_HOST_RD & EPSC_TEST_HOST_WR
+ */
+struct psif_epsc_csr_test_host_wrd {
+ u64 host_addr;
+ u32 epsc_offs;
+ u32 key;
+ /* pattern number 0..xxx */
+ u32 pattern;
+ u32 length;
+ u64 reserved_1[8];
+} PSIF_PACKED_ALIGNED; /* struct psif_epsc_csr_test_host_wrd [88 byte] */
+
+/**
+ * Flash programming: EPSC_FLASH_START, EPSC_FLASH_RD,
+ * EPSC_FLASH_WR & EPSC_FLASH_STOP
+ */
+struct psif_epsc_csr_flash_access {
+ u32 length;
+ u32 offset;
+ struct psif_mmu_cntx mmu_cntx;
+ u64 host_addr;
+ u64 crc;
+ u64 reserved[7];
+} PSIF_PACKED_ALIGNED; /* struct psif_epsc_csr_flash_access [88 byte] */
+
+/**
+ * IB packet trace acquire : EPSC_TRACE_ACQUIRE
+ */
+struct psif_epsc_csr_trace_acquire {
+ /* Pointer to trace buffer */
+ u64 host_addr;
+ /* Buffer length in bytes */
+ u32 maxtrace;
+ /* Buffer offset in bytes */
+ u32 offset;
+ /* MMU context supplied by driver */
+ struct psif_mmu_cntx mmu_cntx;
+ u64 padding[8];
+} PSIF_PACKED_ALIGNED; /* struct psif_epsc_csr_trace_acquire [88 byte] */
+
+/**
+ * EPSC_FW_VERSION
+ */
+struct psif_epsc_csr_fw_version {
+ struct psif_mmu_cntx mmu_cntx;
+ u64 host_addr;
+ u64 data;
+ u64 reserved[8];
+} PSIF_PACKED_ALIGNED; /* struct psif_epsc_csr_fw_version [88 byte] */
+
+struct psif_epsc_csr_log_ctrl {
+ struct psif_mmu_cntx mmu_cntx;
+ /* Log mode to use */
+ enum psif_epsc_log_mode mode:32;
+
+ /* Log level to use */
+ enum psif_epsc_log_level level:32;
+
+ /*
+ * Fields only used by log mode EPSC_LOG_MODE_HOST:
+ * Start address of the data area to write to.
+ */
+ u64 base;
+ /* pointer to a log_stat data area */
+ u64 stat_base;
+ /* Length in bytes of the buffer */
+ u64 length;
+ u64 reserved_2[6];
+} PSIF_PACKED_ALIGNED; /* struct psif_epsc_csr_log_ctrl [88 byte] */
+
+/**
+ * EPS-A to EPS-C
+ */
+struct psif_epsc_csr_epsa_cntrl {
+ u32 noname:30;
+ /* Which EPS-A core */
+ enum psif_eps_a_core epsa:2;
+
+ /* Operation */
+ enum psif_epsc_csr_epsa_command command:32;
+
+ /* Offset within flash */
+ u64 flash_addr;
+ /* Address in EPS-A memory */
+ u64 epsa_addr;
+ u64 reserved[8];
+} PSIF_PACKED_ALIGNED; /* struct psif_epsc_csr_epsa_cntrl [88 byte] */
+
+/**
+ * host to EPS-A
+ */
+struct psif_epsc_csr_epsa_cmd {
+ u32 length;
+ enum psif_epsa_command cmd:32;
+
+ /* Buffer address in host memory */
+ u64 host_addr;
+ u8 entry_point[16];
+ u32 qpnum;
+ u32 key;
+ u64 reserved[6];
+} PSIF_PACKED_ALIGNED; /* struct psif_epsc_csr_epsa_cmd [88 byte] */
+
+/**
+ * EPSC_CLI_ACCESS - buffer size is presumed to be 2K
+ */
+struct psif_epsc_csr_cli_access {
+ u64 host_addr;
+ struct psif_mmu_cntx mmu_cntx;
+ u8 command[72];
+} PSIF_PACKED_ALIGNED; /* struct psif_epsc_csr_cli_access [88 byte] */
+
+/**
+ * EPSC_MAD_PROCESS:
+ */
+struct psif_epsc_csr_mad_process {
+ u64 host_addr;
+ struct psif_mmu_cntx mmu_cntx;
+ /* ib_bth_qp_number(24[0] bits)Queue Pair */
+ u32 qp:24;
+ enum psif_wc_opcode opcode:8;
+
+ /* ib_reth_dmalen(32[0] bits)Direct Memory Access Length */
+ u32 byte_len;
+ /*
+ * SLID taken from the received packet. This is only valid for UD QPs. Only
+ * valid if not privileged.
+ */
+ u16 slid;
+ /* IB portnumber this packet was received on. Only valid if not privileged. */
+ enum psif_port port:1;
+
+ /* Only valid for UD QPs. */
+ u16 sl:4;
+ /* P-Key index from UD packet. */
+ u16 pkey_indx:9;
+ u16 wc_flags_with_imm:1;
+ u16 wc_flags_grh:1;
+ /* Flags indicating GRH and immediate presence.Only valid if not privileged. */
+ /* Inlined wc_flags : struct psif_wc_flags (64 bits) */
+ /* Only valid for UD QPs. */
+ u32 src_qp:24;
+ enum psif_wc_status status:8;
+
+ u64 noname:57;
+ /*
+ * Path bits (lower 7 bits) taken from the DLID in the received packet. This
+ * is only valid for UD QPs. Only valid if not privileged.
+ */
+ u64 dlid_path_bits:7;
+ u64 reserved_2[6];
+} PSIF_PACKED_ALIGNED; /* struct psif_epsc_csr_mad_process [88 byte] */
+
+/**
+ * EPSC_MAD_SEND_WR:
+ */
+struct psif_epsc_csr_mad_send_wr {
+ u64 host_addr;
+ struct psif_mmu_cntx mmu_cntx;
+ u64 reserved[9];
+} PSIF_PACKED_ALIGNED; /* struct psif_epsc_csr_mad_send_wr [88 byte] */
+
+struct psif_epsc_query_req {
+ u32 index;
+ enum psif_epsc_query_op op:32;
+
+ /* Value for EPSC_SET operation */
+ u64 value;
+} PSIF_PACKED_ALIGNED; /* struct psif_epsc_query_req [16 byte] */
+
+/**
+ * Structure for EPSC_QUERY
+ *
+ */
+struct psif_epsc_csr_query {
+ /* Future */
+ u32 noname:32;
+ /* UF number */
+ u32 uf;
+ /* Query destin for the response data field */
+ struct psif_epsc_query_req data;
+ /* Query destin for the response info field */
+ struct psif_epsc_query_req info;
+ u64 reserved[6];
+} PSIF_PACKED_ALIGNED; /* struct psif_epsc_csr_query [88 byte] */
+
+/**
+ * Structure for EPSC_SET
+ */
+struct psif_epsc_csr_set {
+ /* Future */
+ u32 noname:32;
+ /* UF number */
+ u32 uf;
+ /* Set destin for the response data field */
+ struct psif_epsc_query_req data;
+ /* Set destin for the response info field */
+ struct psif_epsc_query_req info;
+ u64 reserved[6];
+} PSIF_PACKED_ALIGNED; /* struct psif_epsc_csr_set [88 byte] */
+
+/**
+ * EPSC_HOST_INT_COMMON_CTRL - PF only
+ */
+struct psif_epsc_csr_interrupt_common {
+ u64 noname:48;
+ /* Moderate total interrupt generation. How many usecs to delay. */
+ u64 total_usec:16;
+ u64 reserved_2[10];
+} PSIF_PACKED_ALIGNED; /* struct psif_epsc_csr_interrupt_common [88 byte] */
+
+/**
+ * EPSC_HOST_INT_CHANNEL_CTRL - PF + VF
+ */
+struct psif_interrupt_attributes {
+ u64 noname:54;
+ u64 channel_pusec_high:1;
+ u64 channel_pusec_low:1;
+ u64 channel_pusec:1;
+ u64 channel_ausec_high:1;
+ u64 channel_ausec_low:1;
+ u64 channel_ausec:1;
+ u64 channel_rate_high:1;
+ u64 channel_rate_low:1;
+ u64 channel_rx_scale:1;
+ u64 enable_adaptive:1;
+} PSIF_PACKED_ALIGNED; /* struct psif_interrupt_attributes [ 8 byte] */
+
+struct psif_epsc_csr_interrupt_channel {
+ /* Mask of attributes to set */
+ struct psif_interrupt_attributes attributes;
+ /* rx-to-tx timer scaling factor 2-exponent value */
+ u16 channel_rx_scale;
+ /* Future */
+ u64 noname:31;
+ /* Set to 1 for adaptive coalescing */
+ u64 enable_adaptive:1;
+ /* EQ number */
+ u64 int_channel:16;
+ /* Message rate in messages per second. High rate threshold. */
+ u64 channel_rate_high:32;
+ /* Message rate in messages per second. Low rate threshold. */
+ u32 channel_rate_low;
+ /* How many usecs to delay after packet. */
+ u16 channel_pusec;
+ /* How many usecs to delay after first packet. High rate value. */
+ u16 channel_ausec_high;
+ /* How many usecs to delay after first packet. Low rate value. */
+ u16 channel_ausec_low;
+ /* How many usecs to delay after first packet. */
+ u16 channel_ausec;
+ /* Align to 64 bit */
+ u32 noname1:32;
+ /* How many usecs to delay after packet. High rate value. */
+ u16 channel_pusec_high;
+ /* How many usecs to delay after packet. Low rate value. */
+ u16 channel_pusec_low;
+ u64 reserved_2[6];
+} PSIF_PACKED_ALIGNED; /* struct psif_epsc_csr_interrupt_channel [88 byte] */
+
+union psif_epsc_update_set_or_offset {
+ u32 offset;
+ enum psif_epsc_update_set set:32;
+
+} PSIF_PACKED; /* union psif_epsc_update_set_or_offset [ 4 byte] */
+
+/**
+ * Flash update: EPSC_UPDATE
+ */
+struct psif_epsc_csr_update {
+ union psif_epsc_update_set_or_offset u;
+ enum psif_epsc_flash_slot slot:16;
+
+ enum psif_epsc_csr_update_opcode opcode:16;
+
+ u32 id;
+ u32 length;
+ struct psif_mmu_cntx mmu_cntx;
+ u64 host_addr;
+ u64 reserved[7];
+} PSIF_PACKED_ALIGNED; /* struct psif_epsc_csr_update [88 byte] */
+
+/**
+ * UF maintenance: EPSC_UF_CTRL
+ */
+struct psif_epsc_csr_uf_ctrl {
+ u32 flags;
+ enum psif_epsc_csr_uf_ctrl_opcode opcode:32;
+
+ u64 uf_vector;
+ u64 reserved[9];
+} PSIF_PACKED_ALIGNED; /* struct psif_epsc_csr_uf_ctrl [88 byte] */
+
+/* CSR automated type for TSU_MMU_FLUSH_CACHES */
+/* Flush MMU and-or PTW Caches. */
+struct psif_csr_mmu_flush_caches {
+ u64 flush_mmu_cache:1;
+ u64 flush_ptw_cache:1;
+ u64 mmu_cache_flushed:1;
+ u64 ptw_cache_flushed:1;
+ u64 noname:60;
+} PSIF_PACKED_ALIGNED; /* struct psif_csr_mmu_flush_caches [ 8 byte] */
+
+/**
+ * Flush MMU and-or PTW Caches: EPSC_FLUSH_CACHES
+ */
+struct psif_epsc_flush_caches {
+ struct psif_csr_mmu_flush_caches flush_mmu_caches;
+ u64 reserved[10];
+} PSIF_PACKED_ALIGNED; /* struct psif_epsc_flush_caches [88 byte] */
+
+/**
+ * Structure for EPSC_PMA_COUNTERS
+ * Common structure for virtual port per UF and
+ * external (physical) port per vSwitch.
+ */
+struct psif_epsc_csr_pma_counters {
+ /**
+ * If MSB is set then it's a physical port number.
+ * Otherwise it's a virtual port number.
+ */
+ u32 port;
+ /* UF number */
+ u32 uf;
+ /* Base address in host memory */
+ u64 host_addr;
+ struct psif_mmu_cntx mmu_cntx;
+ /**
+ * Bitmask to indicate which counters to clear. Bit
+ * positions are based on the response structure's enum.
+ */
+ u64 clear_mask;
+} PSIF_PACKED_ALIGNED; /* struct psif_epsc_csr_pma_counters [32 byte] */
+
+/** \brief Command params for opcode EPSC_VIMMA_CTRL_SET_VFP_VHCA_DEREGISTER
+ * \note This struct belongs to capability: EPSC_VIMMA_CTRL_CAP_PSIF_VFP_CAPS
+ * \par Classification
+ * external
+ */
+struct psif_epsc_vimma_dereg {
+ /* highest uf index set in array below */
+ u16 high_uf;
+ /* lowest uf index set in array below */
+ u16 low_uf;
+ /* size 5*u64 */
+ u32 noname:32;
+ /* allows multi UF setting. bit0 = UF0 bit1 = UF1 etc. */
+ u64 uf_vector[4];
+} PSIF_PACKED_ALIGNED; /* struct psif_epsc_vimma_dereg [40 byte] */
+
+/** \brief Struct defintion for vHCA registration details
+ * \note This struct belongs to capability: EPSC_VIMMA_CTRL_CAP_PSIF_VFP_CAPS
+ * \par Classification
+ * external
+ */
+struct psif_epsc_vimma_vfp_reg {
+ u32 vm_context;
+ u16 noname:16;
+ /* size 5*u64 */
+ u16 uf;
+ u8 vm_id[16];
+ u16 noname1:16;
+ u16 vhca_instance;
+ u32 vm_incarnation;
+ u64 noname2:64;
+} PSIF_PACKED_ALIGNED; /* struct psif_epsc_vimma_vfp_reg [40 byte] */
+
+/** \brief Command params for opcode EPSC_VIMMA_CTRL_SET_ADMIN_MODE
+ * \note This struct belongs to capability: EPSC_VIMMA_CTRL_CAP_PSIF_VFP_CAPS
+ * \par Classification
+ * external
+ */
+struct psif_epsc_vimma_set_admmode {
+ /* highest uf index set in array below */
+ u16 high_uf;
+ /* lowest uf index set in array below */
+ u16 low_uf;
+ u16 noname:16;
+ /* size 5*u64 */
+ enum psif_epsc_vimma_admmode mode:16;
+
+ /* allows multi UF setting. bit0 = UF0 bit1 = UF1 etc. */
+ u64 uf_vector[4];
+} PSIF_PACKED_ALIGNED; /* struct psif_epsc_vimma_set_admmode [40 byte] */
+
+/** \brief Command params for opcode EPSC_VIMMA_CTRL_SET_VFP_VHCA_REGISTER
+ * \note This struct belongs to capability: EPSC_VIMMA_CTRL_CAP_PSIF_VFP_CAPS
+ * \par Classification
+ * external
+ */
+struct psif_epsc_vimma_reg_info {
+ /* highest uf index set in array below */
+ u16 high_uf;
+ /* lowest uf index set in array below */
+ u16 low_uf;
+ u32 noname:32;
+ /* allows multi UF setting. bit0 = UF0 bit1 = UF1 etc. */
+ u64 uf_vector[4];
+} PSIF_PACKED_ALIGNED; /* struct psif_epsc_vimma_reg_info [40 byte] */
+
+/** \brief Defining params for VIMMA opcodes
+ * \par Classification
+ * external
+ */
+union psif_epsc_vimma_ctrl_cmd {
+ /* all union elements are size 5*u64 */
+ struct psif_epsc_vimma_dereg dereg;
+ struct psif_epsc_vimma_vfp_reg vfp_reg;
+ struct psif_epsc_vimma_set_admmode adm_mode;
+ struct psif_epsc_vimma_reg_info reg_info;
+} PSIF_PACKED; /* union psif_epsc_vimma_ctrl_cmd [40 byte] */
+
+/** \brief Defines the complete command params for VIMMA opcodes
+ * \note This struct belongs to capability: EPSC_VIMMA_CTRL_CAP_PSIF_BASIC_CAPS
+ * and should never change in an incompatible way.
+ * \par Classification
+ * external
+ */
+struct psif_epsc_csr_vimma_ctrl {
+ /* length of DMA response buffer pinned in host memory */
+ u32 length;
+ /* VIMMA sub-opcodes triggered by EPSC_VIMMA_CTRL */
+ enum psif_epsc_vimma_ctrl_opcode opcode:32;
+
+ /* Size 5*64 bits: union of the params for the various opcodes */
+ union psif_epsc_vimma_ctrl_cmd u;
+ /* Size 64 bits */
+ struct psif_mmu_cntx mmu_cntx;
+ /* Place to DMA back longer responses during retrieval */
+ u64 host_addr;
+ /* Summing up to 11 * u64 which is total and max */
+ u64 reserved[3];
+} PSIF_PACKED_ALIGNED; /* struct psif_epsc_csr_vimma_ctrl [88 byte] */
+
+/**
+ * Structure for EPSC_BER_DATA
+ */
+struct psif_epsc_csr_ber_data {
+ /* Buffer address in host memory */
+ u64 host_addr;
+ /* MMU supplied by the driver */
+ struct psif_mmu_cntx mmu_cntx;
+ /* Buffer length in bytes */
+ u32 len;
+ /* IBU port number */
+ u32 port;
+} PSIF_PACKED_ALIGNED; /* struct psif_epsc_csr_ber_data [24 byte] */
+
+/* Public API for mailbox requests details */
+union psif_epsc_csr_details {
+ /* Anonymous data */
+ struct psif_epsc_csr_opaque opaque;
+ /* Single data to write */
+ struct psif_epsc_csr_single single;
+ /* Descriptor base address */
+ struct psif_epsc_csr_base_addr base_addr;
+ /* Modify QP request */
+ struct psif_epsc_csr_modify_qp modify_qp;
+ /* Query QP */
+ struct psif_epsc_csr_query_qp query_qp;
+ /* Set LID entry (backdoor setup) */
+ struct psif_epsc_csr_set_lid set_lid;
+ /* Set GID entry (backdoor setup) */
+ struct psif_epsc_csr_set_gid set_gid;
+ /* Set EoIB MAC address (backdoor setup) */
+ struct psif_epsc_csr_set_eoib_mac set_eoib_mac;
+ /* Set vlink state */
+ struct psif_epsc_csr_vlink_state set_vlink;
+ /* Query HW state of device port or other */
+ struct psif_epsc_csr_query_hw query_hw;
+ /* Query table info pkey or gid */
+ struct psif_epsc_csr_query_table query_table;
+ /* MC subscription */
+ struct psif_epsc_csr_mc mc;
+ /* Asynchronous event */
+ struct psif_epsc_csr_event event;
+ /* EPSC_MODIFY_DEVICE */
+ struct psif_epsc_csr_modify_device device;
+ /* EPSC_MODIFY_PORT_{1 2} */
+ struct psif_epsc_csr_modify_port port;
+ /* EPSC_TEST_HOST_RD & EPSC_TEST_HOST_WR */
+ struct psif_epsc_csr_test_host_wrd host_wrd;
+ /* EPSC_FLASH_START EPSC_FLASH_RD EPSC_FLASH_WR & EPSC_FLASH_STOP */
+ struct psif_epsc_csr_flash_access flash;
+ /* EPSC_TRACE_ACQUIRE */
+ struct psif_epsc_csr_trace_acquire trace_acquire;
+ /* EPSC_FW_VERSION */
+ struct psif_epsc_csr_fw_version fw_version;
+ /* EPSC_LOG_CTRL */
+ struct psif_epsc_csr_log_ctrl log_ctrl;
+ /* Control epsa */
+ struct psif_epsc_csr_epsa_cntrl epsa_cntrl;
+ struct psif_epsc_csr_epsa_cmd epsa_cmd;
+ /* Issue commands to serial console */
+ struct psif_epsc_csr_cli_access cli;
+ /* Process incomming (QP 1) packet from host */
+ struct psif_epsc_csr_mad_process mad_process;
+ /* Send MAD formated WR to host for sending */
+ struct psif_epsc_csr_mad_send_wr mad_send_wr;
+ /* Single value query */
+ struct psif_epsc_csr_query query;
+ /* Single value set */
+ struct psif_epsc_csr_set set;
+ /* Setup interrupt control */
+ struct psif_epsc_csr_interrupt_common int_common;
+ struct psif_epsc_csr_interrupt_channel int_channel;
+ /* EPSC_UPDATE (update firmware) */
+ struct psif_epsc_csr_update update;
+ /* EPSC_UF_CTRL: UF maintenance functions */
+ struct psif_epsc_csr_uf_ctrl uf_ctrl;
+ /* EPSC_FLUSH_CACHES: Flush MMU and-or PTW Caches */
+ struct psif_epsc_flush_caches flush_caches;
+ /* PMA counters query */
+ struct psif_epsc_csr_pma_counters pma_counters;
+ /* EPSC_VIMMA_CTRL: VIMMA functions */
+ struct psif_epsc_csr_vimma_ctrl vimma_ctrl;
+ /* BER data query */
+ struct psif_epsc_csr_ber_data ber;
+} PSIF_PACKED; /* union psif_epsc_csr_details [88 byte] */
+
+/**
+ * The host sw to eps-c fw csr workrequest
+ *
+ * The EPSC will post the completion responses for request `#seq_num`
+ * into the completion queue at :
+ * `index = #seq_num % epsc_cq.base_addr.num_entries`
+ * as provided by the initial EPSC_SETUP work request:
+ */
+struct psif_epsc_csr_req {
+ /* Data integrity */
+ u16 crc;
+ /* UF - only valid for UF 0 - must be 0 otherwise */
+ u16 uf;
+ /* Sequence number - included in response */
+ u16 seq_num;
+ enum psif_epsc_csr_flags flags:8;
+
+ enum psif_epsc_csr_opcode opcode:8;
+
+ /* Register offset or port number */
+ u64 addr;
+ /* Operation specific data */
+ union psif_epsc_csr_details u;
+ u64 reserved[3];
+} PSIF_PACKED_ALIGNED32; /* struct psif_epsc_csr_req [128 byte] */
+
+/** Doorbel/mail-box register layout */
+struct psif_epsc_csr_doorbell {
+ /** Identical to head to assure 8 byte atomic write */
+ u16 tail;
+ /** Payload or info */
+ u64 data:32;
+ /** Transfer index */
+ u64 head:16;
+} PSIF_PACKED_ALIGNED; /* struct psif_epsc_csr_doorbell [ 8 byte] */
+
+/**
+ * Basic configuration data for each UF
+ */
+struct psif_epsc_csr_config {
+ /** Minor HW API version identifier. */
+ u16 hwapi_minor_ver;
+ /** Major HW API version identifier. */
+ u16 hwapi_major_ver;
+ /** Minor EPS API version identifier. */
+ u16 epsapi_minor_ver;
+ /** Major EPS API version identifier. */
+ u16 epsapi_major_ver;
+ /** Request base address. */
+ u64 request;
+ /** Respose base address. */
+ u64 response;
+ /** Size of response entry. */
+ u16 extent_rsp;
+ /** Size of request entry. */
+ u16 extent_req;
+ /** Number of entries in table. */
+ u32 entries;
+ /** MMU context for mailbox. */
+ struct psif_mmu_cntx mmu_cntx;
+ /** Padded field. */
+ u64 noname:55;
+ /** Setup CMPL spin set mode to be fast - default is safe (PF only). */
+ u64 fast_spin:1;
+ /** Connect all vlinks to external port (PF only). */
+ u64 vlink_connect:1;
+ /** Enable all VFs to receive SMPs at startup (PF only). */
+ u64 enable_vf_smp:1;
+ /** VCB access: Exact length for scoreboard data copy (PF only). */
+ u64 vcb_exact:1;
+ /** PCI access: Select host endian memory layout (PF only). */
+ u64 big_endian:1;
+ /** Flush SIF pipeline similar to FLR (PF and VF). */
+ u64 clean_state:1;
+ /** PCI access: enable atomic support from SIF (PF only). */
+ enum psif_epsc_csr_atomic_op atomic_support:2;
+
+ /** PCI access: setup for sparc memory layout (PF only). */
+ u64 sparc_pages:1;
+} PSIF_PACKED_ALIGNED; /* struct psif_epsc_csr_config [48 byte] */
+
+/* This is the portion of the descriptor which is updated by software. */
+struct psif_cq_sw { /* Subjected to copy and convert */
+ /* Info: Edge padding added (for endian convert) */
+ u32 space7;
+ /* Index to completion elements added by SW. */
+ u32 head_indx;
+} PSIF_PACKED_ALIGNED; /* struct psif_cq_sw [ 8 byte] */
+
+/*
+ * Descriptor entry for a completion queue. This entry is used to address
+ * into the completion queue and write the correct entries. This structure is
+ * the hardware updateable part of the CQ descriptor.
+ */
+struct psif_cq_hw { /* Subjected to copy and convert */
+ /* cq_max_msg(32[0] bits)Maximum message size in bytes. */
+ u32 max_size;
+ /*
+ * Interrupt channel associated with the event queue. In the PSIF design the
+ * event queues are one to one with interrupt channel.
+ */
+ u32 int_channel:7;
+ /*
+ * Set by DSCR when CQ overrun async event is sent for this CQ. Not cleared
+ * before CQ is destroyed.
+ */
+ u32 cq_overrun_event_sent:1;
+ /* Reserved */
+ u32 noname:7;
+ /*
+ * Pre-fetch threshold (clog2) indicating when to read the software portion
+ * of the descriptor. If there are less entries than indicated by this
+ * threshold, the software portion of the descriptor must be read.
+ */
+ u32 prefetch_threshold_log2:5;
+ /*
+ * EPS-A core number completions are forwarded to if the proxy_enabled bit is
+ * set.
+ */
+ enum psif_eps_a_core eps_core:2;
+
+ /*
+ * If set, this completion queue is proxy enabled and should send completions
+ * to EPS core indicated by the eps_core field.
+ */
+ u32 proxy_en:1;
+ /*
+ * Log2 size of the completion queue. Maximum number of entries in the
+ * completion queue. This is used for calculating when to wrap the head and
+ * tail indexes.
+ */
+ u32 size_log2:5;
+ /* The descriptor is valid. */
+ u32 valid:1;
+ /*
+ * CQ notification states. The use of these are as defined in the description
+ * of the PSIF interrupt coalsecing scheme.
+ */
+ enum psif_cq_state cq_not_state:2;
+
+ /* Do not evict this entry if this bit is set. */
+ u32 sticky:1;
+ struct psif_mmu_cntx mmu_cntx;
+ /*
+ * VA or PA of the base of the completion queue. If PA the MMU context above
+ * will be a bypass context. Updated by software. The head and tail pointers
+ * can be calculated by the following calculations: Address = base_ptr +
+ * (head * ($bits(completion_entry_t)/8 ) Head Pointer and Tail Pointer will
+ * use the same MMU context as the base, and all need to be VA from one
+ * address space, or all need to be PA. In typical use, to allow direct user
+ * access to the head and tail pointer VAs are used.
+ */
+ u64 base_addr;
+ /*
+ * Completion queue sequence number. This is the sequence number to be used
+ * for this completion. When used by a client, it is incremented and written
+ * back to this descriptor.
+ */
+ u32 sequence_number;
+ /* Index to completion elements to be consumed by HW. */
+ u32 tail_indx;
+} PSIF_PACKED_ALIGNED; /* struct psif_cq_hw [32 byte] */
+
+/*
+ * Union between CQ sequence number and immediate date. CQ sequence number is
+ * only valid for privileged QP requests.
+ */
+union psif_seq_num_immdt {
+ /*
+ * Completion queue sequence number for arming of completion queues. This is
+ * the CQ sequence number for the completion queue which was armed.
+ */
+ u32 cq_sequence_number;
+ /* ib_immediate(32[0] bits)Immediate Data */
+ u32 imm;
+} PSIF_PACKED; /* union psif_seq_num_immdt [ 4 byte] */
+
+struct psif_offload_info {
+ /* Reserved */
+ u32 noname:1;
+ /*
+ * This bit is set if the incoming request is a conditional RDMA WR w/Imm
+ * which is not written to memory.
+ */
+ u32 not_written:1;
+ /*
+ * Receive Tossed Packet. PSIF thought there was something wrong with this
+ * offloaded packet so it should be tossed.
+ */
+ u32 rtp:1;
+ /*
+ * Header length used for header/data split offloading. The length of this
+ * header is added to one scatter element.
+ */
+ u32 hdr_split_hdr_length:9;
+ /* The header length is valid for header/data split offloading. */
+ u32 hdr_split_valid:1;
+ /*
+ * When valid, header/data split is performed and the header length is given
+ * in hdr_length.
+ */
+ /* Inlined hdr_split : struct psif_hdr_split_offload (64 bits) */
+ /* This is set if the packet was a DR packet. Only valid if not privileged. */
+ u32 is_dr:1;
+ /*
+ * Original UF for QP0/1 packets going to the EPS-C. Only valid if not
+ * privileged.
+ */
+ u32 orig_uf:6;
+ /*
+ * L4 checksum calculated ok. This is either correct TCP/UDP checksum or UDP
+ * checksum not generated by the transmitter. Only valid if not privileged.
+ */
+ u32 l4_checksum_ok:1;
+ /*
+ * L3 checksum calculated ok. This is either an IPv6 packet or a correctly
+ * checksummed IPv4 header. Only valid if not privileged.
+ */
+ u32 l3_checksum_ok:1;
+ /* L4 is UDP. */
+ u32 packet_classification_udp:1;
+ /* L4 is TCP. */
+ u32 packet_classification_tcp:1;
+ /* Unsupported IPv6 extension headers detected. */
+ u32 packet_classification_ip6_unsupported_exthdr:1;
+ /* Packet is ARP reply */
+ u32 packet_classification_arp_reply:1;
+ /* Packet is ARP */
+ u32 packet_classification_arp:1;
+ /* IPv4 options or IPv6 extension headers present. */
+ u32 packet_classification_ip_options:1;
+ /* IP fragment. */
+ u32 packet_classification_ip_frag:1;
+ /* This is set for IPv6 packets only. */
+ u32 packet_classification_ipv6:1;
+ /* This is set for IPv4 packets only. */
+ u32 packet_classification_ipv4:1;
+ /* L3/L4 packet classification. */
+ /* Inlined packet_classification_ip_class : struct psif_ip_class (64 bits) */
+ /*
+ * 0: means LLC_SNAP, 1: means Ethernet type 2. (L2 packet classification.)
+ * This field is applicable for EoIB only.
+ */
+ u32 packet_classification_eth2:1;
+ /*
+ * Packet classification structure for offloading packets. Only valid if not
+ * privileged.
+ */
+ /* Inlined packet_classification : struct psif_packet_classification (64 bits) */
+ /* RSS hash. Only valid if not privileged. */
+ u32 rss_hash;
+} PSIF_PACKED_ALIGNED; /* struct psif_offload_info [ 8 byte] */
+
+/*
+ * Union - offload is valid for normal QPs. For privileged QPs, it is the WC
+ * ID needed to completed if outstanding is set.
+ */
+union psif_offload_wc_id {
+ /*
+ * This is used if this is a privileged commend INVALIDATE_SGL_CACHE.
+ * Software must figure out if this WC_ID is valid or not.
+ */
+ union psif_completion_wc_id wc_id;
+ /* This countain offload or PSIF specific infornation. */
+ struct psif_offload_info offload;
+} PSIF_PACKED; /* union psif_offload_wc_id [ 8 byte] */
+
+/*
+ * Completion entry. A completion entry written to host memory, will be
+ * padded out to 64 bytes. The last 4 bytes will contain a completion queue
+ * sequence number.
+ */
+struct psif_cq_entry { /* Subjected to copy and convert */
+ /*
+ * Work queue completion ID. For receive completions this is the entry number
+ * in the receive queue and the receive queue descriptor index. For send
+ * completions this is the sq_sequence number.
+ */
+ union psif_completion_wc_id wc_id;
+ /* ib_bth_qp_number(24[0] bits)Queue Pair */
+ u32 qp:24;
+ enum psif_wc_opcode opcode:8;
+
+ /* Length of message. Only valid if not privileged. */
+ u32 byte_len;
+ /* Only valid for UD QPs. */
+ u32 src_qp:24;
+ enum psif_wc_status status:8;
+
+ union psif_seq_num_immdt seq_num_imm;
+ /* RSS source. Only valid if not privileged. */
+ enum psif_rss_hash_source rss_hash_src:1;
+
+ enum psif_tsu_error_types vendor_err:8;
+
+ /*
+ * Checksum with error. This is not inverted for UDP if zero result from
+ * check. It can be either a full or partial checksum. Only valid if not
+ * privileged.
+ */
+ u32 error_checksum:16;
+ /*
+ * Path bits (lower 7 bits) taken from the DLID in the received packet. This
+ * is only valid for UD QPs. Only valid if not privileged.
+ */
+ u32 dlid_path_bits:7;
+ /*
+ * SLID taken from the received packet. This is only valid for UD QPs. Only
+ * valid if not privileged.
+ */
+ u16 slid;
+ /* IB portnumber this packet was received on. Only valid if not privileged. */
+ enum psif_port port:1;
+
+ /* Only valid for UD QPs. */
+ u16 sl:4;
+ /* P-Key index from UD packet. */
+ u16 pkey_indx:9;
+ u16 with_imm:1;
+ u16 grh:1;
+ /* Flags indicating GRH and immediate presence.Only valid if not privileged. */
+ /* Inlined wc_flags : struct psif_wc_flags (64 bits) */
+ /*
+ * For normal QPs, this is offload information. For privileged QPs, this is
+ * WC ID for in progress RQE.
+ */
+ union psif_offload_wc_id offload_wc_id;
+ /* Padding out struct bulk */
+ u64 reserved[2];
+ /* sequence number for sanity checking */
+ u32 seq_num;
+ /* Padding out struct last */
+ u32 noname:32;
+} PSIF_PACKED_ALIGNED; /* struct psif_cq_entry [64 byte] */
+
+/* Generic CSR */
+struct psif_csr_generic {
+ u64 data;
+} PSIF_PACKED_ALIGNED; /* struct psif_csr_generic [ 8 byte] */
+
+/* Compact Base Address Register format. Not for use in register definitions. */
+struct psif_base_addr { /* Subjected to copy and convert */
+ /* host_address(64[0] bits)Host address used for accesses to/from TSU HOST. */
+ u64 address;
+ struct psif_mmu_cntx mmu_context;
+ /*
+ * clog2_extent used for entry alignment. This field used to calculate
+ * address for a particular entry. Address to an entry is calculated as
+ * follows: host_addr + entry_num*(1 (leftshift) clog2_extent)
+ */
+ u32 extent_log2:5;
+ /* Manually added spacing to pad out base addr */
+ u32 pad17:27;
+ /* Number of entries in table. */
+ u32 num_entries;
+} PSIF_PACKED_ALIGNED; /* struct psif_base_addr [24 byte] */
+
+/* Retry data for one atomic request. Layout per BugZilla 3710 */
+struct psif_atomic_retry_element {
+ /* [255:192] response atomic data */
+ u64 orig_data;
+ /* [157:0] Padding. Always set to zero. */
+ u32 padding:30;
+ /* [158] This atomic response was in error. */
+ u32 response_error:1;
+ /*
+ * [159] When set to one, entry has been used. When set to zero,
+ * no duplicate has been written in this entry.
+ */
+ u32 used:1;
+ /* [183:160] psn */
+ u32 psn:24;
+ /* [191:184] padding. always zero */
+ u32 zero:8;
+ u64 reserved[2];
+} PSIF_PACKED_ALIGNED; /* struct psif_atomic_retry_element [32 byte] */
+
+/*
+ * Data type for TSU_HOST_QP_BASE_ADDR - atomic replay scratch pad
+ * Layout as of 16 deep atomic queue - elements padded to 32 byte
+ */
+struct psif_atsp {
+ struct psif_atomic_retry_element retry[16];
+} PSIF_PACKED_ALIGNED; /* struct psif_atsp [512 byte] */
+
+/*
+ * Address handle array entry used for sending UD packets. The structure
+ * contains information about the destination for a request.
+ */
+struct psif_ah { /* Subjected to copy and convert */
+ u64 grh_remote_gid_0;
+ /* Inlined grh : struct psif_grh (192 bits) */
+ u64 grh_remote_gid_1;
+ /* ib_lrh_lid(16[0] bits)Local ID */
+ u16 remote_lid;
+ /* gid_indx(1[0] bits)GID index indicating which of the UFs two GIDs are used. */
+ u64 gid_indx:1;
+ enum psif_port port:1;
+
+ enum psif_loopback loopback:1;
+
+ enum psif_use_grh use_grh:1;
+
+ /* ib_lrh_sl(4[0] bits)Service Level */
+ u64 sl:4;
+ /* Reserved */
+ u64 noname:4;
+ /* ib_grh_hoplmt(8[0] bits)Hop Limit */
+ u64 grh_hoplmt:8;
+ /* ib_grh_tclass(8[0] bits)Traffic Class */
+ u64 grh_tclass:8;
+ /* ib_grh_flowl(20[0] bits)Flow Label */
+ u64 grh_flowlabel:20;
+ /* Reserved */
+ u64 noname1:8;
+ /*
+ * The protection domain is checked against the protection domain in the QP
+ * state. As long as they are equal, the QP is allowed to use this AHA entry.
+ */
+ u64 pd:24;
+ /* ipd(8[0] bits)Inter packet delay. Encoded as specified in IB spec. */
+ u64 ipd:8;
+ /* Reserved */
+ u64 noname2:8;
+ /* ib_lrh_lid_path_bits(7[0] bits)Path bits for the LID. Used as the least signficant bits in a LID */
+ u64 local_lid_path:7;
+ /* Reserved */
+ u64 noname3:9;
+} PSIF_PACKED_ALIGNED; /* struct psif_ah [32 byte] */
+
+/* CSR automated type for TSU_IBPR_P{1,2}_EOIB_MAC1 */
+/* Per vHCA + EPS-C ethernet MAC address register. */
+struct psif_csr_ibpr_eoib_mac1 {
+ u64 mac1:48;
+ u64 valid:1;
+ u64 noname:15;
+} PSIF_PACKED_ALIGNED; /* struct psif_csr_ibpr_eoib_mac1 [ 8 byte] */
+
+
+
+#endif /* _PSIF_HW_DATA_H_LE */