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Diffstat (limited to 'drivers/net/ehea/ehea_qmr.h')
-rw-r--r--drivers/net/ehea/ehea_qmr.h404
1 files changed, 0 insertions, 404 deletions
diff --git a/drivers/net/ehea/ehea_qmr.h b/drivers/net/ehea/ehea_qmr.h
deleted file mode 100644
index fddff8ec8cfd..000000000000
--- a/drivers/net/ehea/ehea_qmr.h
+++ /dev/null
@@ -1,404 +0,0 @@
-/*
- * linux/drivers/net/ehea/ehea_qmr.h
- *
- * eHEA ethernet device driver for IBM eServer System p
- *
- * (C) Copyright IBM Corp. 2006
- *
- * Authors:
- * Christoph Raisch <raisch@de.ibm.com>
- * Jan-Bernd Themann <themann@de.ibm.com>
- * Thomas Klein <tklein@de.ibm.com>
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2, or (at your option)
- * any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-#ifndef __EHEA_QMR_H__
-#define __EHEA_QMR_H__
-
-#include <linux/prefetch.h>
-#include "ehea.h"
-#include "ehea_hw.h"
-
-/*
- * page size of ehea hardware queues
- */
-
-#define EHEA_PAGESHIFT 12
-#define EHEA_PAGESIZE (1UL << EHEA_PAGESHIFT)
-#define EHEA_SECTSIZE (1UL << 24)
-#define EHEA_PAGES_PER_SECTION (EHEA_SECTSIZE >> EHEA_PAGESHIFT)
-#define EHEA_HUGEPAGESHIFT 34
-#define EHEA_HUGEPAGE_SIZE (1UL << EHEA_HUGEPAGESHIFT)
-#define EHEA_HUGEPAGE_PFN_MASK ((EHEA_HUGEPAGE_SIZE - 1) >> PAGE_SHIFT)
-
-#if ((1UL << SECTION_SIZE_BITS) < EHEA_SECTSIZE)
-#error eHEA module cannot work if kernel sectionsize < ehea sectionsize
-#endif
-
-/* Some abbreviations used here:
- *
- * WQE - Work Queue Entry
- * SWQE - Send Work Queue Entry
- * RWQE - Receive Work Queue Entry
- * CQE - Completion Queue Entry
- * EQE - Event Queue Entry
- * MR - Memory Region
- */
-
-/* Use of WR_ID field for EHEA */
-#define EHEA_WR_ID_COUNT EHEA_BMASK_IBM(0, 19)
-#define EHEA_WR_ID_TYPE EHEA_BMASK_IBM(20, 23)
-#define EHEA_SWQE2_TYPE 0x1
-#define EHEA_SWQE3_TYPE 0x2
-#define EHEA_RWQE2_TYPE 0x3
-#define EHEA_RWQE3_TYPE 0x4
-#define EHEA_WR_ID_INDEX EHEA_BMASK_IBM(24, 47)
-#define EHEA_WR_ID_REFILL EHEA_BMASK_IBM(48, 63)
-
-struct ehea_vsgentry {
- u64 vaddr;
- u32 l_key;
- u32 len;
-};
-
-/* maximum number of sg entries allowed in a WQE */
-#define EHEA_MAX_WQE_SG_ENTRIES 252
-#define SWQE2_MAX_IMM (0xD0 - 0x30)
-#define SWQE3_MAX_IMM 224
-
-/* tx control flags for swqe */
-#define EHEA_SWQE_CRC 0x8000
-#define EHEA_SWQE_IP_CHECKSUM 0x4000
-#define EHEA_SWQE_TCP_CHECKSUM 0x2000
-#define EHEA_SWQE_TSO 0x1000
-#define EHEA_SWQE_SIGNALLED_COMPLETION 0x0800
-#define EHEA_SWQE_VLAN_INSERT 0x0400
-#define EHEA_SWQE_IMM_DATA_PRESENT 0x0200
-#define EHEA_SWQE_DESCRIPTORS_PRESENT 0x0100
-#define EHEA_SWQE_WRAP_CTL_REC 0x0080
-#define EHEA_SWQE_WRAP_CTL_FORCE 0x0040
-#define EHEA_SWQE_BIND 0x0020
-#define EHEA_SWQE_PURGE 0x0010
-
-/* sizeof(struct ehea_swqe) less the union */
-#define SWQE_HEADER_SIZE 32
-
-struct ehea_swqe {
- u64 wr_id;
- u16 tx_control;
- u16 vlan_tag;
- u8 reserved1;
- u8 ip_start;
- u8 ip_end;
- u8 immediate_data_length;
- u8 tcp_offset;
- u8 reserved2;
- u16 tcp_end;
- u8 wrap_tag;
- u8 descriptors; /* number of valid descriptors in WQE */
- u16 reserved3;
- u16 reserved4;
- u16 mss;
- u32 reserved5;
- union {
- /* Send WQE Format 1 */
- struct {
- struct ehea_vsgentry sg_list[EHEA_MAX_WQE_SG_ENTRIES];
- } no_immediate_data;
-
- /* Send WQE Format 2 */
- struct {
- struct ehea_vsgentry sg_entry;
- /* 0x30 */
- u8 immediate_data[SWQE2_MAX_IMM];
- /* 0xd0 */
- struct ehea_vsgentry sg_list[EHEA_MAX_WQE_SG_ENTRIES-1];
- } immdata_desc __packed;
-
- /* Send WQE Format 3 */
- struct {
- u8 immediate_data[SWQE3_MAX_IMM];
- } immdata_nodesc;
- } u;
-};
-
-struct ehea_rwqe {
- u64 wr_id; /* work request ID */
- u8 reserved1[5];
- u8 data_segments;
- u16 reserved2;
- u64 reserved3;
- u64 reserved4;
- struct ehea_vsgentry sg_list[EHEA_MAX_WQE_SG_ENTRIES];
-};
-
-#define EHEA_CQE_VLAN_TAG_XTRACT 0x0400
-
-#define EHEA_CQE_TYPE_RQ 0x60
-#define EHEA_CQE_STAT_ERR_MASK 0x700F
-#define EHEA_CQE_STAT_FAT_ERR_MASK 0xF
-#define EHEA_CQE_BLIND_CKSUM 0x8000
-#define EHEA_CQE_STAT_ERR_TCP 0x4000
-#define EHEA_CQE_STAT_ERR_IP 0x2000
-#define EHEA_CQE_STAT_ERR_CRC 0x1000
-
-/* Defines which bad send cqe stati lead to a port reset */
-#define EHEA_CQE_STAT_RESET_MASK 0x0002
-
-struct ehea_cqe {
- u64 wr_id; /* work request ID from WQE */
- u8 type;
- u8 valid;
- u16 status;
- u16 reserved1;
- u16 num_bytes_transfered;
- u16 vlan_tag;
- u16 inet_checksum_value;
- u8 reserved2;
- u8 header_length;
- u16 reserved3;
- u16 page_offset;
- u16 wqe_count;
- u32 qp_token;
- u32 timestamp;
- u32 reserved4;
- u64 reserved5[3];
-};
-
-#define EHEA_EQE_VALID EHEA_BMASK_IBM(0, 0)
-#define EHEA_EQE_IS_CQE EHEA_BMASK_IBM(1, 1)
-#define EHEA_EQE_IDENTIFIER EHEA_BMASK_IBM(2, 7)
-#define EHEA_EQE_QP_CQ_NUMBER EHEA_BMASK_IBM(8, 31)
-#define EHEA_EQE_QP_TOKEN EHEA_BMASK_IBM(32, 63)
-#define EHEA_EQE_CQ_TOKEN EHEA_BMASK_IBM(32, 63)
-#define EHEA_EQE_KEY EHEA_BMASK_IBM(32, 63)
-#define EHEA_EQE_PORT_NUMBER EHEA_BMASK_IBM(56, 63)
-#define EHEA_EQE_EQ_NUMBER EHEA_BMASK_IBM(48, 63)
-#define EHEA_EQE_SM_ID EHEA_BMASK_IBM(48, 63)
-#define EHEA_EQE_SM_MECH_NUMBER EHEA_BMASK_IBM(48, 55)
-#define EHEA_EQE_SM_PORT_NUMBER EHEA_BMASK_IBM(56, 63)
-
-#define EHEA_AER_RESTYPE_QP 0x8
-#define EHEA_AER_RESTYPE_CQ 0x4
-#define EHEA_AER_RESTYPE_EQ 0x3
-
-/* Defines which affiliated errors lead to a port reset */
-#define EHEA_AER_RESET_MASK 0xFFFFFFFFFEFFFFFFULL
-#define EHEA_AERR_RESET_MASK 0xFFFFFFFFFFFFFFFFULL
-
-struct ehea_eqe {
- u64 entry;
-};
-
-#define ERROR_DATA_LENGTH EHEA_BMASK_IBM(52, 63)
-#define ERROR_DATA_TYPE EHEA_BMASK_IBM(0, 7)
-
-static inline void *hw_qeit_calc(struct hw_queue *queue, u64 q_offset)
-{
- struct ehea_page *current_page;
-
- if (q_offset >= queue->queue_length)
- q_offset -= queue->queue_length;
- current_page = (queue->queue_pages)[q_offset >> EHEA_PAGESHIFT];
- return &current_page->entries[q_offset & (EHEA_PAGESIZE - 1)];
-}
-
-static inline void *hw_qeit_get(struct hw_queue *queue)
-{
- return hw_qeit_calc(queue, queue->current_q_offset);
-}
-
-static inline void hw_qeit_inc(struct hw_queue *queue)
-{
- queue->current_q_offset += queue->qe_size;
- if (queue->current_q_offset >= queue->queue_length) {
- queue->current_q_offset = 0;
- /* toggle the valid flag */
- queue->toggle_state = (~queue->toggle_state) & 1;
- }
-}
-
-static inline void *hw_qeit_get_inc(struct hw_queue *queue)
-{
- void *retvalue = hw_qeit_get(queue);
- hw_qeit_inc(queue);
- return retvalue;
-}
-
-static inline void *hw_qeit_get_inc_valid(struct hw_queue *queue)
-{
- struct ehea_cqe *retvalue = hw_qeit_get(queue);
- u8 valid = retvalue->valid;
- void *pref;
-
- if ((valid >> 7) == (queue->toggle_state & 1)) {
- /* this is a good one */
- hw_qeit_inc(queue);
- pref = hw_qeit_calc(queue, queue->current_q_offset);
- prefetch(pref);
- prefetch(pref + 128);
- } else
- retvalue = NULL;
- return retvalue;
-}
-
-static inline void *hw_qeit_get_valid(struct hw_queue *queue)
-{
- struct ehea_cqe *retvalue = hw_qeit_get(queue);
- void *pref;
- u8 valid;
-
- pref = hw_qeit_calc(queue, queue->current_q_offset);
- prefetch(pref);
- prefetch(pref + 128);
- prefetch(pref + 256);
- valid = retvalue->valid;
- if (!((valid >> 7) == (queue->toggle_state & 1)))
- retvalue = NULL;
- return retvalue;
-}
-
-static inline void *hw_qeit_reset(struct hw_queue *queue)
-{
- queue->current_q_offset = 0;
- return hw_qeit_get(queue);
-}
-
-static inline void *hw_qeit_eq_get_inc(struct hw_queue *queue)
-{
- u64 last_entry_in_q = queue->queue_length - queue->qe_size;
- void *retvalue;
-
- retvalue = hw_qeit_get(queue);
- queue->current_q_offset += queue->qe_size;
- if (queue->current_q_offset > last_entry_in_q) {
- queue->current_q_offset = 0;
- queue->toggle_state = (~queue->toggle_state) & 1;
- }
- return retvalue;
-}
-
-static inline void *hw_eqit_eq_get_inc_valid(struct hw_queue *queue)
-{
- void *retvalue = hw_qeit_get(queue);
- u32 qe = *(u8 *)retvalue;
- if ((qe >> 7) == (queue->toggle_state & 1))
- hw_qeit_eq_get_inc(queue);
- else
- retvalue = NULL;
- return retvalue;
-}
-
-static inline struct ehea_rwqe *ehea_get_next_rwqe(struct ehea_qp *qp,
- int rq_nr)
-{
- struct hw_queue *queue;
-
- if (rq_nr == 1)
- queue = &qp->hw_rqueue1;
- else if (rq_nr == 2)
- queue = &qp->hw_rqueue2;
- else
- queue = &qp->hw_rqueue3;
-
- return hw_qeit_get_inc(queue);
-}
-
-static inline struct ehea_swqe *ehea_get_swqe(struct ehea_qp *my_qp,
- int *wqe_index)
-{
- struct hw_queue *queue = &my_qp->hw_squeue;
- struct ehea_swqe *wqe_p;
-
- *wqe_index = (queue->current_q_offset) >> (7 + EHEA_SG_SQ);
- wqe_p = hw_qeit_get_inc(&my_qp->hw_squeue);
-
- return wqe_p;
-}
-
-static inline void ehea_post_swqe(struct ehea_qp *my_qp, struct ehea_swqe *swqe)
-{
- iosync();
- ehea_update_sqa(my_qp, 1);
-}
-
-static inline struct ehea_cqe *ehea_poll_rq1(struct ehea_qp *qp, int *wqe_index)
-{
- struct hw_queue *queue = &qp->hw_rqueue1;
-
- *wqe_index = (queue->current_q_offset) >> (7 + EHEA_SG_RQ1);
- return hw_qeit_get_valid(queue);
-}
-
-static inline void ehea_inc_cq(struct ehea_cq *cq)
-{
- hw_qeit_inc(&cq->hw_queue);
-}
-
-static inline void ehea_inc_rq1(struct ehea_qp *qp)
-{
- hw_qeit_inc(&qp->hw_rqueue1);
-}
-
-static inline struct ehea_cqe *ehea_poll_cq(struct ehea_cq *my_cq)
-{
- return hw_qeit_get_valid(&my_cq->hw_queue);
-}
-
-#define EHEA_CQ_REGISTER_ORIG 0
-#define EHEA_EQ_REGISTER_ORIG 0
-
-enum ehea_eq_type {
- EHEA_EQ = 0, /* event queue */
- EHEA_NEQ /* notification event queue */
-};
-
-struct ehea_eq *ehea_create_eq(struct ehea_adapter *adapter,
- enum ehea_eq_type type,
- const u32 length, const u8 eqe_gen);
-
-int ehea_destroy_eq(struct ehea_eq *eq);
-
-struct ehea_eqe *ehea_poll_eq(struct ehea_eq *eq);
-
-struct ehea_cq *ehea_create_cq(struct ehea_adapter *adapter, int cqe,
- u64 eq_handle, u32 cq_token);
-
-int ehea_destroy_cq(struct ehea_cq *cq);
-
-struct ehea_qp *ehea_create_qp(struct ehea_adapter *adapter, u32 pd,
- struct ehea_qp_init_attr *init_attr);
-
-int ehea_destroy_qp(struct ehea_qp *qp);
-
-int ehea_reg_kernel_mr(struct ehea_adapter *adapter, struct ehea_mr *mr);
-
-int ehea_gen_smr(struct ehea_adapter *adapter, struct ehea_mr *old_mr,
- struct ehea_mr *shared_mr);
-
-int ehea_rem_mr(struct ehea_mr *mr);
-
-u64 ehea_error_data(struct ehea_adapter *adapter, u64 res_handle,
- u64 *aer, u64 *aerr);
-
-int ehea_add_sect_bmap(unsigned long pfn, unsigned long nr_pages);
-int ehea_rem_sect_bmap(unsigned long pfn, unsigned long nr_pages);
-int ehea_create_busmap(void);
-void ehea_destroy_busmap(void);
-u64 ehea_map_vaddr(void *caddr);
-
-#endif /* __EHEA_QMR_H__ */
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