diff options
Diffstat (limited to 'drivers/staging/benet/funcobj.c')
| -rw-r--r-- | drivers/staging/benet/funcobj.c | 565 |
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; -} - |