diff options
author | Jeff Kirsher <jeffrey.t.kirsher@intel.com> | 2011-05-13 23:29:12 +0200 |
---|---|---|
committer | Jeff Kirsher <jeffrey.t.kirsher@intel.com> | 2011-08-11 11:41:59 +0200 |
commit | 9aa3283595451ca093500ff0977b106e1f465586 (patch) | |
tree | 89cd128f037b029b67f73fbff7d8cc38177c2b27 /drivers/net/ehea/ehea_qmr.h | |
parent | s2io/vxge: Move the Exar drivers (diff) | |
download | linux-9aa3283595451ca093500ff0977b106e1f465586.tar.xz linux-9aa3283595451ca093500ff0977b106e1f465586.zip |
ehea/ibm*: Move the IBM drivers
Move the IBM drivers into drivers/net/ethernet/ibm/ and make the
necessary Kconfig and Makefile changes.
- Renamed ibm_new_emac to emac
- Cleaned up Makefile and Kconfig options which referred to
IBM_NEW_EMAC to IBM_EMAC
- ibmlana driver is a National Semiconductor SONIC driver so
it was not moved
CC: Christoph Raisch <raisch@de.ibm.com>
CC: Santiago Leon <santil@linux.vnet.ibm.com>
CC: Benjamin Herrenschmidt <benh@kernel.crashing.org>
CC: David Gibson <dwg@au1.ibm.com>
CC: Kyle Lucke <klucke@us.ibm.com>
CC: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Diffstat (limited to 'drivers/net/ehea/ehea_qmr.h')
-rw-r--r-- | drivers/net/ehea/ehea_qmr.h | 404 |
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 ¤t_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__ */ |