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path: root/drivers/staging/benet/funcobj.c
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Diffstat (limited to 'drivers/staging/benet/funcobj.c')
-rw-r--r--drivers/staging/benet/funcobj.c565
1 files changed, 0 insertions, 565 deletions
diff --git a/drivers/staging/benet/funcobj.c b/drivers/staging/benet/funcobj.c
deleted file mode 100644
index 0f57eb58daef..000000000000
--- a/drivers/staging/benet/funcobj.c
+++ /dev/null
@@ -1,565 +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"
-
-
-int
-be_function_internal_query_firmware_config(struct be_function_object *pfob,
- struct BE_FIRMWARE_CONFIG *config)
-{
- struct FWCMD_COMMON_FIRMWARE_CONFIG *fwcmd = NULL;
- struct MCC_WRB_AMAP *wrb = NULL;
- int status = 0;
- unsigned long irql;
- struct be_mcc_wrb_response_copy rc;
-
- spin_lock_irqsave(&pfob->post_lock, irql);
-
- wrb = be_function_peek_mcc_wrb(pfob);
- if (!wrb) {
- TRACE(DL_ERR, "MCC wrb peek failed.");
- status = BE_STATUS_NO_MCC_WRB;
- goto error;
- }
- /* Prepares an embedded fwcmd, including request/response sizes. */
- fwcmd = BE_PREPARE_EMBEDDED_FWCMD(pfob, wrb, COMMON_FIRMWARE_CONFIG);
-
- rc.length = FIELD_SIZEOF(struct FWCMD_COMMON_FIRMWARE_CONFIG,
- params.response);
- rc.fwcmd_offset = offsetof(struct FWCMD_COMMON_FIRMWARE_CONFIG,
- params.response);
- rc.va = config;
-
- /* Post the f/w command */
- status = be_function_post_mcc_wrb(pfob, wrb, NULL, NULL,
- NULL, NULL, NULL, fwcmd, &rc);
-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;
-}
-
-/*
- This allocates and initializes a function object based on the information
- provided by upper layer drivers.
-
- Returns BE_SUCCESS on success and an appropriate int on failure.
-
- A function object represents a single BladeEngine (logical) PCI function.
- That is a function object either represents
- the networking side of BladeEngine or the iSCSI side of BladeEngine.
-
- This routine will also detect and create an appropriate PD object for the
- PCI function as needed.
-*/
-int
-be_function_object_create(u8 __iomem *csr_va, u8 __iomem *db_va,
- u8 __iomem *pci_va, u32 function_type,
- struct ring_desc *mailbox, struct be_function_object *pfob)
-{
- int status;
-
- ASSERT(pfob); /* not a magic assert */
- ASSERT(function_type <= 2);
-
- TRACE(DL_INFO, "Create function object. type:%s object:0x%p",
- (function_type == BE_FUNCTION_TYPE_ISCSI ? "iSCSI" :
- (function_type == BE_FUNCTION_TYPE_NETWORK ? "Network" :
- "Arm")), pfob);
-
- memset(pfob, 0, sizeof(*pfob));
-
- pfob->type = function_type;
- pfob->csr_va = csr_va;
- pfob->db_va = db_va;
- pfob->pci_va = pci_va;
-
- spin_lock_init(&pfob->cq_lock);
- spin_lock_init(&pfob->post_lock);
- spin_lock_init(&pfob->mcc_context_lock);
-
-
- pfob->pci_function_number = 1;
-
-
- pfob->emulate = false;
- TRACE(DL_NOTE, "Non-emulation mode");
- status = be_drive_POST(pfob);
- if (status != BE_SUCCESS) {
- TRACE(DL_ERR, "BladeEngine POST failed.");
- goto error;
- }
-
- /* Initialize the mailbox */
- status = be_mpu_init_mailbox(pfob, mailbox);
- if (status != BE_SUCCESS) {
- TRACE(DL_ERR, "Failed to initialize mailbox.");
- goto error;
- }
- /*
- * Cache the firmware config for ASSERTs in hwclib and later
- * driver queries.
- */
- status = be_function_internal_query_firmware_config(pfob,
- &pfob->fw_config);
- if (status != BE_SUCCESS) {
- TRACE(DL_ERR, "Failed to query firmware config.");
- goto error;
- }
-
-error:
- if (status != BE_SUCCESS) {
- /* No cleanup necessary */
- TRACE(DL_ERR, "Failed to create function.");
- memset(pfob, 0, sizeof(*pfob));
- }
- return status;
-}
-
-/*
- This routine drops the reference count on a given function object. Once
- the reference count falls to zero, the function object is destroyed and all
- resources held are freed.
-
- FunctionObject - The function object to drop the reference to.
-*/
-int be_function_object_destroy(struct be_function_object *pfob)
-{
- TRACE(DL_INFO, "Destroy pfob. Object:0x%p",
- pfob);
-
-
- ASSERT(pfob->mcc == NULL);
-
- return BE_SUCCESS;
-}
-
-int be_function_cleanup(struct be_function_object *pfob)
-{
- int status = 0;
- u32 isr;
- u32 host_intr;
- struct PCICFG_HOST_TIMER_INT_CTRL_CSR_AMAP ctrl;
-
-
- if (pfob->type == BE_FUNCTION_TYPE_NETWORK) {
- status = be_rxf_multicast_config(pfob, false, 0,
- NULL, NULL, NULL, NULL);
- ASSERT(status == BE_SUCCESS);
- }
- /* VLAN */
- status = be_rxf_vlan_config(pfob, false, 0, NULL, NULL, NULL, NULL);
- ASSERT(status == BE_SUCCESS);
- /*
- * MCC Queue -- Switches to mailbox mode. May want to destroy
- * all but the MCC CQ before this call if polling CQ is much better
- * performance than polling mailbox register.
- */
- if (pfob->mcc)
- status = be_mcc_ring_destroy(pfob->mcc);
- /*
- * If interrupts are disabled, clear any CEV interrupt assertions that
- * fired after we stopped processing EQs.
- */
- ctrl.dw[0] = PCICFG1_READ(pfob, host_timer_int_ctrl);
- host_intr = AMAP_GET_BITS_PTR(PCICFG_HOST_TIMER_INT_CTRL_CSR,
- hostintr, ctrl.dw);
- if (!host_intr)
- if (pfob->type == BE_FUNCTION_TYPE_NETWORK)
- isr = CSR_READ(pfob, cev.isr1);
- else
- isr = CSR_READ(pfob, cev.isr0);
- else
- /* This should never happen... */
- TRACE(DL_ERR, "function_cleanup called with interrupt enabled");
- /* Function object destroy */
- status = be_function_object_destroy(pfob);
- ASSERT(status == BE_SUCCESS);
-
- return status;
-}
-
-
-void *
-be_function_prepare_embedded_fwcmd(struct be_function_object *pfob,
- struct MCC_WRB_AMAP *wrb, u32 payld_len, u32 request_length,
- u32 response_length, u32 opcode, u32 subsystem)
-{
- struct FWCMD_REQUEST_HEADER *header = NULL;
- u32 n;
-
- ASSERT(wrb);
-
- n = offsetof(struct BE_MCC_WRB_AMAP, payload)/8;
- AMAP_SET_BITS_PTR(MCC_WRB, embedded, wrb, 1);
- AMAP_SET_BITS_PTR(MCC_WRB, payload_length, wrb, min(payld_len, n));
- header = (struct FWCMD_REQUEST_HEADER *)((u8 *)wrb + n);
-
- header->timeout = 0;
- header->domain = 0;
- header->request_length = max(request_length, response_length);
- header->opcode = opcode;
- header->subsystem = subsystem;
-
- return header;
-}
-
-void *
-be_function_prepare_nonembedded_fwcmd(struct be_function_object *pfob,
- struct MCC_WRB_AMAP *wrb,
- void *fwcmd_va, u64 fwcmd_pa,
- u32 payld_len,
- u32 request_length,
- u32 response_length,
- u32 opcode, u32 subsystem)
-{
- struct FWCMD_REQUEST_HEADER *header = NULL;
- u32 n;
- struct MCC_WRB_PAYLOAD_AMAP *plp;
-
- ASSERT(wrb);
- ASSERT(fwcmd_va);
-
- header = (struct FWCMD_REQUEST_HEADER *) fwcmd_va;
-
- AMAP_SET_BITS_PTR(MCC_WRB, embedded, wrb, 0);
- AMAP_SET_BITS_PTR(MCC_WRB, payload_length, wrb, payld_len);
-
- /*
- * Assume one fragment. The caller may override the SGL by
- * rewriting the 0th length and adding more entries. They
- * will also need to update the sge_count.
- */
- AMAP_SET_BITS_PTR(MCC_WRB, sge_count, wrb, 1);
-
- n = offsetof(struct BE_MCC_WRB_AMAP, payload)/8;
- plp = (struct MCC_WRB_PAYLOAD_AMAP *)((u8 *)wrb + n);
- AMAP_SET_BITS_PTR(MCC_WRB_PAYLOAD, sgl[0].length, plp, payld_len);
- AMAP_SET_BITS_PTR(MCC_WRB_PAYLOAD, sgl[0].pa_lo, plp, (u32)fwcmd_pa);
- AMAP_SET_BITS_PTR(MCC_WRB_PAYLOAD, sgl[0].pa_hi, plp,
- upper_32_bits(fwcmd_pa));
-
- header->timeout = 0;
- header->domain = 0;
- header->request_length = max(request_length, response_length);
- header->opcode = opcode;
- header->subsystem = subsystem;
-
- return header;
-}
-
-struct MCC_WRB_AMAP *
-be_function_peek_mcc_wrb(struct be_function_object *pfob)
-{
- struct MCC_WRB_AMAP *wrb = NULL;
- u32 offset;
-
- if (pfob->mcc)
- wrb = _be_mpu_peek_ring_wrb(pfob->mcc, false);
- else {
- offset = offsetof(struct BE_MCC_MAILBOX_AMAP, wrb)/8;
- wrb = (struct MCC_WRB_AMAP *) ((u8 *) pfob->mailbox.va +
- offset);
- }
-
- if (wrb)
- memset(wrb, 0, sizeof(struct MCC_WRB_AMAP));
-
- return wrb;
-}
-
-#if defined(BE_DEBUG)
-void be_function_debug_print_wrb(struct be_function_object *pfob,
- struct MCC_WRB_AMAP *wrb, void *optional_fwcmd_va,
- struct be_mcc_wrb_context *wrb_context)
-{
-
- struct FWCMD_REQUEST_HEADER *header = NULL;
- u8 embedded;
- u32 n;
-
- embedded = AMAP_GET_BITS_PTR(MCC_WRB, embedded, wrb);
-
- if (embedded) {
- n = offsetof(struct BE_MCC_WRB_AMAP, payload)/8;
- header = (struct FWCMD_REQUEST_HEADER *)((u8 *)wrb + n);
- } else {
- header = (struct FWCMD_REQUEST_HEADER *) optional_fwcmd_va;
- }
-
- /* Save the completed count before posting for a debug assert. */
-
- if (header) {
- wrb_context->opcode = header->opcode;
- wrb_context->subsystem = header->subsystem;
-
- } else {
- wrb_context->opcode = 0;
- wrb_context->subsystem = 0;
- }
-}
-#else
-#define be_function_debug_print_wrb(a_, b_, c_, d_)
-#endif
-
-int
-be_function_post_mcc_wrb(struct be_function_object *pfob,
- struct MCC_WRB_AMAP *wrb,
- struct be_generic_q_ctxt *q_ctxt,
- mcc_wrb_cqe_callback cb, void *cb_context,
- mcc_wrb_cqe_callback internal_cb,
- void *internal_cb_context, void *optional_fwcmd_va,
- struct be_mcc_wrb_response_copy *rc)
-{
- int status;
- struct be_mcc_wrb_context *wrb_context = NULL;
- u64 *p;
-
- if (q_ctxt) {
- /* Initialize context. */
- q_ctxt->context.internal_cb = internal_cb;
- q_ctxt->context.internal_cb_context = internal_cb_context;
- q_ctxt->context.cb = cb;
- q_ctxt->context.cb_context = cb_context;
- if (rc) {
- q_ctxt->context.copy.length = rc->length;
- q_ctxt->context.copy.fwcmd_offset = rc->fwcmd_offset;
- q_ctxt->context.copy.va = rc->va;
- } else
- q_ctxt->context.copy.length = 0;
-
- q_ctxt->context.optional_fwcmd_va = optional_fwcmd_va;
-
- /* Queue this request */
- status = be_function_queue_mcc_wrb(pfob, q_ctxt);
-
- goto Error;
- }
- /*
- * Allocate a WRB context struct to hold the callback pointers,
- * status, etc. This is required if commands complete out of order.
- */
- wrb_context = _be_mcc_allocate_wrb_context(pfob);
- if (!wrb_context) {
- TRACE(DL_WARN, "Failed to allocate MCC WRB context.");
- status = BE_STATUS_SYSTEM_RESOURCES;
- goto Error;
- }
- /* Initialize context. */
- memset(wrb_context, 0, sizeof(*wrb_context));
- wrb_context->internal_cb = internal_cb;
- wrb_context->internal_cb_context = internal_cb_context;
- wrb_context->cb = cb;
- wrb_context->cb_context = cb_context;
- if (rc) {
- wrb_context->copy.length = rc->length;
- wrb_context->copy.fwcmd_offset = rc->fwcmd_offset;
- wrb_context->copy.va = rc->va;
- } else
- wrb_context->copy.length = 0;
- wrb_context->wrb = wrb;
-
- /*
- * Copy the context pointer into the WRB opaque tag field.
- * Verify assumption of 64-bit tag with a compile time assert.
- */
- p = (u64 *) ((u8 *)wrb + offsetof(struct BE_MCC_WRB_AMAP, tag)/8);
- *p = (u64)(size_t)wrb_context;
-
- /* Print info about this FWCMD for debug builds. */
- be_function_debug_print_wrb(pfob, wrb, optional_fwcmd_va, wrb_context);
-
- /*
- * issue the WRB to the MPU as appropriate
- */
- if (pfob->mcc) {
- /*
- * we're in WRB mode, pass to the mcc layer
- */
- status = _be_mpu_post_wrb_ring(pfob->mcc, wrb, wrb_context);
- } else {
- /*
- * we're in mailbox mode
- */
- status = _be_mpu_post_wrb_mailbox(pfob, wrb, wrb_context);
-
- /* mailbox mode always completes synchronously */
- ASSERT(status != BE_STATUS_PENDING);
- }
-
-Error:
-
- return status;
-}
-
-int
-be_function_ring_destroy(struct be_function_object *pfob,
- u32 id, u32 ring_type, mcc_wrb_cqe_callback cb,
- void *cb_context, mcc_wrb_cqe_callback internal_cb,
- void *internal_cb_context)
-{
-
- struct FWCMD_COMMON_RING_DESTROY *fwcmd = NULL;
- struct MCC_WRB_AMAP *wrb = NULL;
- int status = 0;
- unsigned long irql;
-
- spin_lock_irqsave(&pfob->post_lock, irql);
-
- TRACE(DL_INFO, "Destroy ring id:%d type:%d", id, ring_type);
-
- wrb = be_function_peek_mcc_wrb(pfob);
- if (!wrb) {
- ASSERT(wrb);
- TRACE(DL_ERR, "No free MCC WRBs in destroy ring.");
- status = BE_STATUS_NO_MCC_WRB;
- goto Error;
- }
- /* Prepares an embedded fwcmd, including request/response sizes. */
- fwcmd = BE_PREPARE_EMBEDDED_FWCMD(pfob, wrb, COMMON_RING_DESTROY);
-
- fwcmd->params.request.id = id;
- fwcmd->params.request.ring_type = ring_type;
-
- /* Post the f/w command */
- status = be_function_post_mcc_wrb(pfob, wrb, NULL, cb, cb_context,
- internal_cb, internal_cb_context, fwcmd, NULL);
- if (status != BE_SUCCESS && status != BE_PENDING) {
- TRACE(DL_ERR, "Ring destroy fwcmd failed. id:%d ring_type:%d",
- id, ring_type);
- goto Error;
- }
-
-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;
-}
-
-void
-be_rd_to_pa_list(struct ring_desc *rd, struct PHYS_ADDR *pa_list, u32 max_num)
-{
- u32 num_pages = PAGES_SPANNED(rd->va, rd->length);
- u32 i = 0;
- u64 pa = rd->pa;
- __le64 lepa;
-
- ASSERT(pa_list);
- ASSERT(pa);
-
- for (i = 0; i < min(num_pages, max_num); i++) {
- lepa = cpu_to_le64(pa);
- pa_list[i].lo = (u32)lepa;
- pa_list[i].hi = upper_32_bits(lepa);
- pa += PAGE_SIZE;
- }
-}
-
-
-
-/*-----------------------------------------------------------------------------
- * Function: be_function_get_fw_version
- * Retrieves the firmware version on the adpater. If the callback is
- * NULL this call executes synchronously. If the callback is not NULL,
- * the returned status will be BE_PENDING if the command was issued
- * successfully.
- * pfob -
- * fwv - Pointer to response buffer if callback is NULL.
- * cb - Callback function invoked when the FWCMD completes.
- * cb_context - Passed to the callback function.
- * 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_function_get_fw_version(struct be_function_object *pfob,
- struct FWCMD_COMMON_GET_FW_VERSION_RESPONSE_PAYLOAD *fwv,
- mcc_wrb_cqe_callback cb, void *cb_context)
-{
- int status = BE_SUCCESS;
- struct MCC_WRB_AMAP *wrb = NULL;
- struct FWCMD_COMMON_GET_FW_VERSION *fwcmd = NULL;
- unsigned long irql;
- struct be_mcc_wrb_response_copy rc;
-
- spin_lock_irqsave(&pfob->post_lock, irql);
-
- wrb = be_function_peek_mcc_wrb(pfob);
- if (!wrb) {
- TRACE(DL_ERR, "MCC wrb peek failed.");
- status = BE_STATUS_NO_MCC_WRB;
- goto Error;
- }
-
- if (!cb && !fwv) {
- TRACE(DL_ERR, "callback and response buffer NULL!");
- status = BE_NOT_OK;
- goto Error;
- }
- /* Prepares an embedded fwcmd, including request/response sizes. */
- fwcmd = BE_PREPARE_EMBEDDED_FWCMD(pfob, wrb, COMMON_GET_FW_VERSION);
-
- rc.length = FIELD_SIZEOF(struct FWCMD_COMMON_GET_FW_VERSION,
- params.response);
- rc.fwcmd_offset = offsetof(struct FWCMD_COMMON_GET_FW_VERSION,
- params.response);
- rc.va = fwv;
-
- /* Post the f/w command */
- status = be_function_post_mcc_wrb(pfob, wrb, NULL, cb,
- cb_context, NULL, NULL, fwcmd, &rc);
-
-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;
-}
-
-int
-be_function_queue_mcc_wrb(struct be_function_object *pfob,
- struct be_generic_q_ctxt *q_ctxt)
-{
- int status;
-
- ASSERT(q_ctxt);
-
- /*
- * issue the WRB to the MPU as appropriate
- */
- if (pfob->mcc) {
-
- /* We're in ring mode. Queue this item. */
- pfob->mcc->backlog_length++;
- list_add_tail(&q_ctxt->context.list, &pfob->mcc->backlog);
- status = BE_PENDING;
- } else {
- status = BE_NOT_OK;
- }
- return status;
-}
-