diff options
author | David S. Miller <davem@davemloft.net> | 2009-03-26 15:23:24 -0700 |
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committer | David S. Miller <davem@davemloft.net> | 2009-03-26 15:23:24 -0700 |
commit | 08abe18af1f78ee80c3c3a5ac47c3e0ae0beadf6 (patch) | |
tree | 2be39bf8942edca1bcec735145e144a682ca9cd3 /drivers/staging/benet/eq.c | |
parent | f0de70f8bb56952f6e016a65a8a8d006918f5bf6 (diff) | |
parent | 0384e2959127a56d0640505d004d8dd92f9c29f5 (diff) |
Merge branch 'master' of /home/davem/src/GIT/linux-2.6/
Conflicts:
drivers/net/wimax/i2400m/usb-notif.c
Diffstat (limited to 'drivers/staging/benet/eq.c')
-rw-r--r-- | drivers/staging/benet/eq.c | 299 |
1 files changed, 0 insertions, 299 deletions
diff --git a/drivers/staging/benet/eq.c b/drivers/staging/benet/eq.c deleted file mode 100644 index db92ccd8fed..00000000000 --- a/drivers/staging/benet/eq.c +++ /dev/null @@ -1,299 +0,0 @@ -/* - * Copyright (C) 2005 - 2008 ServerEngines - * All rights reserved. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License version 2 - * as published by the Free Software Foundation. The full GNU General - * Public License is included in this distribution in the file called COPYING. - * - * Contact Information: - * linux-drivers@serverengines.com - * - * ServerEngines - * 209 N. Fair Oaks Ave - * Sunnyvale, CA 94085 - */ -#include "hwlib.h" -#include "bestatus.h" -/* - This routine creates an event queue based on the client completion - queue configuration information. - - FunctionObject - Handle to a function object - EqBaseVa - Base VA for a the EQ ring - SizeEncoding - The encoded size for the EQ entries. This value is - either CEV_EQ_SIZE_4 or CEV_EQ_SIZE_16 - NumEntries - CEV_CQ_CNT_* values. - Watermark - Enables watermark based coalescing. This parameter - must be of the type CEV_WMARK_* if watermarks - are enabled. If watermarks to to be disabled - this value should be-1. - TimerDelay - If a timer delay is enabled this value should be the - time of the delay in 8 microsecond units. If - delays are not used this parameter should be - set to -1. - ppEqObject - Internal EQ Handle returned. - - Returns BE_SUCCESS if successfull,, otherwise a useful error code - is returned. - - IRQL < DISPATCH_LEVEL -*/ -int -be_eq_create(struct be_function_object *pfob, - struct ring_desc *rd, u32 eqe_size, u32 num_entries, - u32 watermark, /* CEV_WMARK_* or -1 */ - u32 timer_delay, /* in 8us units, or -1 */ - struct be_eq_object *eq_object) -{ - int status = BE_SUCCESS; - u32 num_entries_encoding, eqe_size_encoding, length; - struct FWCMD_COMMON_EQ_CREATE *fwcmd = NULL; - struct MCC_WRB_AMAP *wrb = NULL; - u32 n; - unsigned long irql; - - ASSERT(rd); - ASSERT(eq_object); - - switch (num_entries) { - case 256: - num_entries_encoding = CEV_EQ_CNT_256; - break; - case 512: - num_entries_encoding = CEV_EQ_CNT_512; - break; - case 1024: - num_entries_encoding = CEV_EQ_CNT_1024; - break; - case 2048: - num_entries_encoding = CEV_EQ_CNT_2048; - break; - case 4096: - num_entries_encoding = CEV_EQ_CNT_4096; - break; - default: - ASSERT(0); - return BE_STATUS_INVALID_PARAMETER; - } - - switch (eqe_size) { - case 4: - eqe_size_encoding = CEV_EQ_SIZE_4; - break; - case 16: - eqe_size_encoding = CEV_EQ_SIZE_16; - break; - default: - ASSERT(0); - return BE_STATUS_INVALID_PARAMETER; - } - - if ((eqe_size == 4 && num_entries < 1024) || - (eqe_size == 16 && num_entries == 4096)) { - TRACE(DL_ERR, "Bad EQ size. eqe_size:%d num_entries:%d", - eqe_size, num_entries); - ASSERT(0); - return BE_STATUS_INVALID_PARAMETER; - } - - memset(eq_object, 0, sizeof(*eq_object)); - - atomic_set(&eq_object->ref_count, 0); - eq_object->parent_function = pfob; - eq_object->eq_id = 0xFFFFFFFF; - - INIT_LIST_HEAD(&eq_object->cq_list_head); - - length = num_entries * eqe_size; - - spin_lock_irqsave(&pfob->post_lock, irql); - - wrb = be_function_peek_mcc_wrb(pfob); - if (!wrb) { - ASSERT(wrb); - TRACE(DL_ERR, "No free MCC WRBs in create EQ."); - status = BE_STATUS_NO_MCC_WRB; - goto Error; - } - /* Prepares an embedded fwcmd, including request/response sizes. */ - fwcmd = BE_PREPARE_EMBEDDED_FWCMD(pfob, wrb, COMMON_EQ_CREATE); - - fwcmd->params.request.num_pages = PAGES_SPANNED(OFFSET_IN_PAGE(rd->va), - length); - n = pfob->pci_function_number; - AMAP_SET_BITS_PTR(EQ_CONTEXT, Func, &fwcmd->params.request.context, n); - - AMAP_SET_BITS_PTR(EQ_CONTEXT, valid, &fwcmd->params.request.context, 1); - - AMAP_SET_BITS_PTR(EQ_CONTEXT, Size, - &fwcmd->params.request.context, eqe_size_encoding); - - n = 0; /* Protection Domain is always 0 in Linux driver */ - AMAP_SET_BITS_PTR(EQ_CONTEXT, PD, &fwcmd->params.request.context, n); - - /* Let the caller ARM the EQ with the doorbell. */ - AMAP_SET_BITS_PTR(EQ_CONTEXT, Armed, &fwcmd->params.request.context, 0); - - AMAP_SET_BITS_PTR(EQ_CONTEXT, Count, &fwcmd->params.request.context, - num_entries_encoding); - - n = pfob->pci_function_number * 32; - AMAP_SET_BITS_PTR(EQ_CONTEXT, EventVect, - &fwcmd->params.request.context, n); - if (watermark != -1) { - AMAP_SET_BITS_PTR(EQ_CONTEXT, WME, - &fwcmd->params.request.context, 1); - AMAP_SET_BITS_PTR(EQ_CONTEXT, Watermark, - &fwcmd->params.request.context, watermark); - ASSERT(watermark <= CEV_WMARK_240); - } else - AMAP_SET_BITS_PTR(EQ_CONTEXT, WME, - &fwcmd->params.request.context, 0); - if (timer_delay != -1) { - AMAP_SET_BITS_PTR(EQ_CONTEXT, TMR, - &fwcmd->params.request.context, 1); - - ASSERT(timer_delay <= 250); /* max value according to EAS */ - timer_delay = min(timer_delay, (u32)250); - - AMAP_SET_BITS_PTR(EQ_CONTEXT, Delay, - &fwcmd->params.request.context, timer_delay); - } else { - AMAP_SET_BITS_PTR(EQ_CONTEXT, TMR, - &fwcmd->params.request.context, 0); - } - /* Create a page list for the FWCMD. */ - be_rd_to_pa_list(rd, fwcmd->params.request.pages, - ARRAY_SIZE(fwcmd->params.request.pages)); - - status = be_function_post_mcc_wrb(pfob, wrb, NULL, NULL, NULL, - NULL, NULL, fwcmd, NULL); - if (status != BE_SUCCESS) { - TRACE(DL_ERR, "MCC to create EQ failed."); - goto Error; - } - /* Get the EQ id. The MPU allocates the IDs. */ - eq_object->eq_id = fwcmd->params.response.eq_id; - -Error: - spin_unlock_irqrestore(&pfob->post_lock, irql); - - if (pfob->pend_queue_driving && pfob->mcc) { - pfob->pend_queue_driving = 0; - be_drive_mcc_wrb_queue(pfob->mcc); - } - return status; -} - -/* - Deferences the given object. Once the object's reference count drops to - zero, the object is destroyed and all resources that are held by this - object are released. The on-chip context is also destroyed along with - the queue ID, and any mappings made into the UT. - - eq_object - EQ handle returned from eq_object_create. - - Returns BE_SUCCESS if successfull, otherwise a useful error code - is returned. - - IRQL: IRQL < DISPATCH_LEVEL -*/ -int be_eq_destroy(struct be_eq_object *eq_object) -{ - int status = 0; - - ASSERT(atomic_read(&eq_object->ref_count) == 0); - /* no CQs should reference this EQ now */ - ASSERT(list_empty(&eq_object->cq_list_head)); - - /* Send fwcmd to destroy the EQ. */ - status = be_function_ring_destroy(eq_object->parent_function, - eq_object->eq_id, FWCMD_RING_TYPE_EQ, - NULL, NULL, NULL, NULL); - ASSERT(status == 0); - - return BE_SUCCESS; -} -/* - *--------------------------------------------------------------------------- - * Function: be_eq_modify_delay - * Changes the EQ delay for a group of EQs. - * num_eq - The number of EQs in the eq_array to adjust. - * This also is the number of delay values in - * the eq_delay_array. - * eq_array - Array of struct be_eq_object pointers to adjust. - * eq_delay_array - Array of "num_eq" timer delays in units - * of microseconds. The be_eq_query_delay_range - * fwcmd returns the resolution and range of - * legal EQ delays. - * cb - - * cb_context - - * q_ctxt - Optional. Pointer to a previously allocated - * struct. If the MCC WRB ring is full, this - * structure is used to queue the operation. It - * will be posted to the MCC ring when space - * becomes available. All queued commands will - * be posted to the ring in the order they are - * received. It is always valid to pass a pointer to - * a generic be_generic_q_cntxt. However, - * the specific context structs - * are generally smaller than the generic struct. - * return pend_status - BE_SUCCESS (0) on success. - * BE_PENDING (postive value) if the FWCMD - * completion is pending. Negative error code on failure. - *------------------------------------------------------------------------- - */ -int -be_eq_modify_delay(struct be_function_object *pfob, - u32 num_eq, struct be_eq_object **eq_array, - u32 *eq_delay_array, mcc_wrb_cqe_callback cb, - void *cb_context, struct be_eq_modify_delay_q_ctxt *q_ctxt) -{ - struct FWCMD_COMMON_MODIFY_EQ_DELAY *fwcmd = NULL; - struct MCC_WRB_AMAP *wrb = NULL; - int status = 0; - struct be_generic_q_ctxt *gen_ctxt = NULL; - u32 i; - unsigned long irql; - - spin_lock_irqsave(&pfob->post_lock, irql); - - wrb = be_function_peek_mcc_wrb(pfob); - if (!wrb) { - if (q_ctxt && cb) { - wrb = (struct MCC_WRB_AMAP *) &q_ctxt->wrb_header; - gen_ctxt = (struct be_generic_q_ctxt *) q_ctxt; - gen_ctxt->context.bytes = sizeof(*q_ctxt); - } else { - status = BE_STATUS_NO_MCC_WRB; - goto Error; - } - } - /* Prepares an embedded fwcmd, including request/response sizes. */ - fwcmd = BE_PREPARE_EMBEDDED_FWCMD(pfob, wrb, COMMON_MODIFY_EQ_DELAY); - - ASSERT(num_eq > 0); - ASSERT(num_eq <= ARRAY_SIZE(fwcmd->params.request.delay)); - fwcmd->params.request.num_eq = num_eq; - for (i = 0; i < num_eq; i++) { - fwcmd->params.request.delay[i].eq_id = eq_array[i]->eq_id; - fwcmd->params.request.delay[i].delay_in_microseconds = - eq_delay_array[i]; - } - - /* Post the f/w command */ - status = be_function_post_mcc_wrb(pfob, wrb, gen_ctxt, - cb, cb_context, NULL, NULL, fwcmd, NULL); - -Error: - spin_unlock_irqrestore(&pfob->post_lock, irql); - - if (pfob->pend_queue_driving && pfob->mcc) { - pfob->pend_queue_driving = 0; - be_drive_mcc_wrb_queue(pfob->mcc); - } - return status; -} - |