aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/staging/benet/eq.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/staging/benet/eq.c')
-rw-r--r--drivers/staging/benet/eq.c299
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 db92ccd8fed8..000000000000
--- 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;
-}
-
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.