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Message-ID: <20080217023300.1118ec0a@mailhost.serverengines.com>
Date: Sat, 16 Feb 2008 18:33:00 -0800
From: "Subbu Seetharaman" <subbus@...verengines.com>
To: netdev@...r.kernel.org
Subject: [PATHCH 6/16] ServerEngines 10Gb NIC driver
beclib functions that implement function object.
---------------------------------------------
diff -uprN orig/linux-2.6.24.2/drivers/message/beclib/funcobj_ll.c benet/linux-2.6.24.2/drivers/message/beclib/funcobj_ll.c
--- orig/linux-2.6.24.2/drivers/message/beclib/funcobj_ll.c 1970-01-01 05:30:00.000000000 +0530
+++ benet/linux-2.6.24.2/drivers/message/beclib/funcobj_ll.c 2008-02-14 15:23:07.806206040 +0530
@@ -0,0 +1,2339 @@
+/*
+ * 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
+ * as published by the Free Software Foundation; either version 2
+ * of the License, 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., 51 Franklin Street, 5th Floor
+ * Boston, MA 02110-1301 USA
+ *
+ *
+ * The full GNU General Public License is included in this distribution
+ * in the file called GPL.
+ *
+ * Contact Information:
+ * linux-drivers@...verengines.com
+ *
+ * ServerEngines
+ * 209 N. Fair Oaks Ave
+ * Sunnyvale, CA 94085
+ *
+ */
+#include "pch.h"
+
+#ifdef FUNCTION_ISCSI
+/*
+ *============================================================================
+ * F I L E S C O P E
+ *============================================================================
+ */
+
+/*!
+@...ef
+ This routine allocates iscsi ooo buffers & then registers them
+ with the controller.
+@...am function_object - the iscsi function object to create these for
+@...am page_count - number of pages to allocate for i_sc_si ooo buffers
+@...urn
+ BE_SUCCESS if successfull, otherwise a useful BESTATUS is returned.
+*/
+BESTATUS
+be_function_iscsi_ooo_buffers_post(PBE_FUNCTION_OBJECT function_object,
+ u32 page_count, PSA_SGL sgl)
+{
+ BESTATUS status = BE_SUCCESS;
+ IOCTL_COMMON_ISCSI_CFG_POST_OOO_BUFFERS *ioctl = NULL;
+ MCC_WRB *wrb = NULL;
+ u32 num_pages = 0;
+ u32 page_offset = 0;
+ u32 i;
+
+ be_lock_wrb_post(function_object);
+
+ ASSERT(sa_sgl_get_offset(sgl) == 0); /* need page aligned buffers */
+ ASSERT(page_count <= sa_sgl_get_page_count(sgl));
+
+ /* sw tracking */
+ function_object->config.num_ooo += page_count;
+
+ TRACE(DL_INFO, "post ooo buffers. num:%d", page_count);
+
+ /*
+ * Post numerous ioctls to keep each one small enuf to be embedded in
+ * the WRB.
+ */
+ do {
+ wrb = be_function_peek_mcc_wrb(function_object);
+ if (!wrb) {
+ TRACE(DL_ERR, "MCC wrb peek failed.");
+ status = BE_STATUS_NO_MCC_WRB;
+ goto error;
+ }
+ /*
+ * Prepares an embedded ioctl, including
+ * request/response sizes.
+ */
+ ioctl = BE_FUNCTION_PREPARE_EMBEDDED_IOCTL(function_object,
+ wrb, COMMON_ISCSI_CFG_POST_OOO_BUFFERS);
+
+ num_pages = MIN(page_count, SA_NUMBER_OF_FIELD(
+ IOCTL_COMMON_ISCSI_CFG_POST_OOO_BUFFERS,
+ params.request.pages));
+ ioctl->params.request.num_pages = num_pages;
+
+ /* Create a page list for the IOCTL. */
+ for (i = 0; i < ioctl->params.request.num_pages; i++) {
+ u64 pa = sa_sgl_get_page(sgl, page_offset + i);
+ ioctl->params.request.pages[i].lo = sa_lo(pa);
+ ioctl->params.request.pages[i].hi = sa_hi(pa);
+ }
+
+ page_offset += num_pages;
+ page_count -= num_pages;
+
+ ioctl->params.request.final = (page_count == 0 ? 1 : 0);
+
+ status =
+ be_function_post_mcc_wrb(function_object, wrb, NULL,
+ NULL, ioctl);
+ if (status != BE_SUCCESS) {
+ TRACE(DL_ERR,
+ "MCC to add iscsi ooo buffers failed.");
+ goto error;
+ }
+
+ } while (page_count > 0);
+
+error:
+ be_unlock_wrb_post(function_object);
+ return status;
+}
+
+/*!
+@...ef
+ This routine allocates iSCSI ooo buffers & then registers them
+ with the controller.
+@...am
+ FunctionObject - The iSCSI function object to create these for
+@...am
+ PageCount - Number of pages to allocate for iSCSI ooo buffers
+@...urn
+ BE_SUCCESS if successfull, otherwise a useful BESTATUS is returned.
+*/
+BESTATUS
+be_function_iscsi_ooo_buffers_remove(PBE_FUNCTION_OBJECT function_object)
+{
+ BESTATUS status = BE_SUCCESS;
+ IOCTL_COMMON_ISCSI_CFG_REMOVE_OOO_BUFFERS *ioctl = NULL;
+ MCC_WRB *wrb = NULL;
+
+ be_lock_wrb_post(function_object);
+
+ /* sw tracking */
+ function_object->config.num_ooo = 0;
+ TRACE(DL_INFO, "remove ooo buffers.");
+
+ wrb = be_function_peek_mcc_wrb(function_object);
+ if (!wrb) {
+ TRACE(DL_ERR, "MCC wrb peek failed.");
+ status = BE_STATUS_NO_MCC_WRB;
+ goto error;
+ }
+ /* Prepares an embedded ioctl, including request/response sizes. */
+ ioctl =
+ BE_FUNCTION_PREPARE_EMBEDDED_IOCTL(function_object, wrb,
+ COMMON_ISCSI_CFG_REMOVE_OOO_BUFFERS);
+
+ status =
+ be_function_post_mcc_wrb(function_object, wrb, NULL, NULL,
+ ioctl);
+ if (status != BE_SUCCESS) {
+ TRACE(DL_ERR, "MCC to remove iscsi ooo buffers failed.");
+ goto error;
+ }
+
+error:
+
+ be_unlock_wrb_post(function_object);
+ return status;
+}
+#endif
+
+/*!
+
+@...ef
+ This allocates an initializes a function object based on the information
+ provided by upper layer drivers.
+
+@...am
+ BarLocations - Location & information on PCI BARs contained
+ by this PCI function
+@...am
+ Upcall - Dispatch table of calls into the upper layer drivers
+@...am
+ ppFunctionObject - New function object
+
+@...urn
+ Returns BE_SUCCESS on success and an appropriate BESTATUS on failure.
+
+@...e
+ IRQL < DISPATCH_LEVEL
+
+ 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. Each
+ function object has a chip object that is shared by up to 1 other function
+ object.
+
+ This routine will also detect and create an appropriate PD object for the
+ PCI function as needed.
+
+*/
+BESTATUS
+be_function_create(IN SA_DEV *sa_dev,
+ IN u32 function_type,
+ IN PSA_SGL mailbox,
+ OUT PBE_FUNCTION_OBJECT function_object)
+{
+ BESTATUS status;
+
+ SA_TRACE_ENTRY();
+
+ ASSERT(sa_dev);
+ ASSERT(function_object); /* not a magic assert */
+ ASSERT(function_type <= 2);
+
+ TRACE(DL_INFO,
+ "Create function object. type:%s sa_dev:0x%p object:0x%p",
+ (function_type == BE_FUNCTION_TYPE_ISCSI ? "iSCSI" :
+ (function_type == BE_FUNCTION_TYPE_NETWORK ? "Network" :
+ "Arm")), sa_dev, function_object);
+
+ sa_zero_mem(function_object, sizeof(*function_object));
+
+ function_object->magic = BE_FUNCTION_MAGIC;
+ function_object->ref_count = 0;
+ function_object->type = function_type;
+ function_object->sa_dev = sa_dev;
+
+ be_lock_init(&function_object->lock);
+
+ sa_init_spinlock(&function_object->cq_lock);
+ sa_init_spinlock(&function_object->post_lock);
+ sa_init_spinlock(&function_object->mcc_context_lock);
+
+ sa_initialize_list_head(&function_object->links.pd_list_head);
+ sa_initialize_list_head(&function_object->links.cq_list_head);
+ sa_initialize_list_head(&function_object->links.eq_list_head);
+ sa_initialize_list_head(&function_object->links.cxn_list_head);
+ sa_initialize_list_head(&function_object->links.eth_sq_list_head);
+ sa_initialize_list_head(&function_object->links.eth_rq_list_head);
+
+ if (be_function_is_iscsi(function_object)) {
+ sa_initialize_list_head(&function_object->links.iscsi.
+ wrbq_list_head);
+ sa_initialize_list_head(&function_object->links.iscsi.
+ defq_list_head);
+
+ function_object->pci_function_number = 0;
+ } else {
+
+ sa_initialize_list_head(&function_object->links.networking.
+ dq_list_head);
+ sa_initialize_list_head(&function_object->links.networking.
+ sq_list_head);
+ sa_initialize_list_head(&function_object->links.networking.
+ rq_list_head);
+
+ function_object->pci_function_number = 1;
+ }
+
+ function_object->config.rss_type = RSS_ENABLE_NONE;
+
+ function_object->emulate = FALSE;
+ TRACE(DL_NOTE, "Non-emulation mode");
+ status = be_drive_POST(function_object);
+ if (status != BE_SUCCESS) {
+ TRACE(DL_ERR, "BladeEngine POST failed.");
+ goto error;
+ }
+
+ /* Initialize the mailbox */
+ status = be_mpu_init_mailbox(function_object, mailbox);
+ if (status != BE_SUCCESS) {
+ TRACE(DL_ERR, "Failed to initialize mailbox.");
+ goto error;
+ }
+ /*
+ * Cache the firmware config for ASSERTs in beclib and later
+ * driver queries.
+ */
+ status = be_function_internal_query_firmware_config(function_object,
+ &function_object->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.");
+ SA_ZERO_MEM(function_object);
+ }
+
+ return status;
+}
+
+/*!
+@...ef
+ 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.
+
+@...am
+ FunctionObject - The function object to drop the reference to.
+*/
+BESTATUS be_function_destroy(IN PBE_FUNCTION_OBJECT function_object)
+{
+ FUNCTION_ASSERT(function_object);
+
+ TRACE(DL_INFO, "Destroy function_object. Object:0x%p",
+ function_object);
+
+ if (be_function_is_iscsi(function_object)) {
+ ASSERT(sa_is_list_empty
+ (&function_object->links.cxn_list_head));
+ ASSERT(sa_is_list_empty
+ (&function_object->links.iscsi.wrbq_list_head));
+ ASSERT(sa_is_list_empty
+ (&function_object->links.iscsi.defq_list_head));
+ ASSERT(function_object->config.num_ooo == 0);
+ ASSERT(function_object->config.num_sgl == 0);
+ } else {
+ ASSERT(be_function_is_networking(function_object));
+ ASSERT(sa_is_list_empty
+ (&function_object->links.cxn_list_head));
+ ASSERT(sa_is_list_empty
+ (&function_object->links.networking.sq_list_head));
+ ASSERT(sa_is_list_empty
+ (&function_object->links.networking.rq_list_head));
+ ASSERT(sa_is_list_empty
+ (&function_object->links.networking.dq_list_head));
+ ASSERT(function_object->config.num_multicast == 0);
+ ASSERT(function_object->config.rss_type ==
+ RSS_ENABLE_NONE);
+ }
+
+ ASSERT(function_object->config.num_template == 0);
+ ASSERT(function_object->config.num_jell == 0);
+ ASSERT(function_object->config.num_zero == 0);
+ ASSERT(sa_is_list_empty(&function_object->links.eth_sq_list_head));
+ ASSERT(sa_is_list_empty(&function_object->links.eth_rq_list_head));
+ ASSERT(function_object->config.num_vlan == 0);
+ ASSERT(function_object->links.mcc == NULL);
+ ASSERT(sa_is_list_empty(&function_object->links.cq_list_head));
+ ASSERT(sa_is_list_empty(&function_object->links.eq_list_head));
+ ASSERT(function_object->config.num_page_table == 0);
+
+ /* Superfluous additional ref count. */
+ ASSERT(function_object->ref_count == 0);
+
+ return BE_SUCCESS;
+}
+
+/* Create chip object. */
+BESTATUS be_chip_object_create(PBE_CHIP_OBJECT chip)
+{
+ BESTATUS status = 0;
+ boolean chip_created = FALSE;
+
+ status = be_chip_create(chip);
+ if (status != BE_SUCCESS) {
+ goto Error;
+ }
+
+ chip_created = TRUE;
+
+Error:
+
+ if (status != BE_SUCCESS) {
+
+ /* Cleanup everything in case of failure. */
+
+ if (chip_created) {
+ be_chip_destroy(chip);
+ }
+
+ }
+
+ return status;
+
+}
+
+/* Create function object. */
+BESTATUS be_function_object_create(
+ SA_DEV *sa_dev,/* previously created device */
+ u32 function_type, /* e.g FUNCTION_TYPE_ISCSI */
+ PSA_SGL mailbox_sgl, PBE_FUNCTION_OBJECT function_object,
+ PBE_CHIP_OBJECT chip) /* object to initialize */
+{
+ BESTATUS status = 0;
+ boolean function_created = FALSE;
+
+ status = be_function_create(sa_dev, function_type, mailbox_sgl,
+ function_object);
+ if (status != BE_SUCCESS) {
+ goto Error;
+ }
+
+ function_created = TRUE;
+
+ status = be_chip_insert_function_object(chip, function_object);
+
+Error:
+
+ if (status != BE_SUCCESS) {
+
+ /* Cleanup everything in case of failure. */
+
+ if (function_created) {
+ be_function_destroy(function_object);
+ }
+ }
+
+ return status;
+
+}
+
+/*
+ * Create both function and chip object with one call. The lower level
+ * API will rarely use more than one function object.
+ */
+BESTATUS be_function_and_chip_create(
+ SA_DEV *sa_dev, /* previously created device */
+ u32 function_type, /* e.g FUNCTION_TYPE_ISCSI */
+ PSA_SGL mailbox_sgl, PSA_SGL emulation_sgl,
+ PBE_FUNCTION_OBJECT function_object, PBE_CHIP_OBJECT chip)
+{
+ BESTATUS status = 0;
+ boolean function_created = FALSE, chip_created = FALSE;
+
+ status =
+ be_function_create(sa_dev, function_type, mailbox_sgl,
+ function_object);
+ if (status != BE_SUCCESS) {
+ goto Error;
+ }
+
+ function_created = TRUE;
+
+ status = be_chip_create(chip);
+ if (status != BE_SUCCESS) {
+ goto Error;
+ }
+
+ chip_created = TRUE;
+
+ status = be_chip_insert_function_object(chip, function_object);
+
+Error:
+
+ if (status != BE_SUCCESS) {
+
+ /* Cleanup everything in case of failure. */
+
+ if (chip_created) {
+ be_chip_destroy(chip);
+ }
+
+ if (function_created) {
+ be_function_destroy(function_object);
+ }
+ }
+
+ return status;
+
+}
+
+BESTATUS
+be_function_and_chip_destroy(PBE_FUNCTION_OBJECT function_object,
+ PBE_CHIP_OBJECT chip)
+{
+ TRACE(DL_INFO, "Destroy function & chip.");
+
+ be_chip_remove_function_object(chip, function_object);
+
+ be_chip_destroy(chip);
+
+ be_function_destroy(function_object);
+
+ return BE_SUCCESS;
+}
+
+BESTATUS
+be_function_object_destroy(PBE_FUNCTION_OBJECT function_object,
+ PBE_CHIP_OBJECT chip)
+{
+ TRACE(DL_INFO, "Destroy function & chip.");
+
+ (void)be_mpu_uninit_mailbox(function_object);
+
+ be_chip_remove_function_object(chip, function_object);
+
+ be_function_destroy(function_object);
+
+ return BE_SUCCESS;
+}
+
+BESTATUS be_chip_object_destroy(PBE_CHIP_OBJECT chip)
+{
+ TRACE(DL_INFO, "Destroy function & chip.");
+
+ be_chip_destroy(chip);
+
+ return BE_SUCCESS;
+}
+
+BESTATUS be_function_cleanup(PBE_FUNCTION_OBJECT function_object)
+{
+ PSA_LIST_ENTRY list_entry;
+ BESTATUS status = 0;
+ BE_CQ_OBJECT *cq = NULL;
+ BE_EQ_OBJECT *eq = NULL;
+#ifdef FUNCTION_NIC
+ BE_ETHSQ_OBJECT *eth_sq = NULL;
+ BE_ETHRQ_OBJECT *eth_rq = NULL;
+#endif
+ u32 isr;
+ PCICFG_HOST_TIMER_INT_CTRL_CSR ctrl;
+
+ FUNCTION_ASSERT(function_object);
+
+ TRACE(DL_INFO, "function cleanup. function:%d",
+ be_function_get_function_number(function_object));
+
+#ifdef FUNCTION_ISCSI
+
+ if (be_function_is_iscsi(function_object)) {
+ /*BE_ISCSI_CONNECTION_OBJECT *iscsi_cxn = NULL; */
+ BE_ISCSI_WRB_QUEUE_OBJECT *iscsi_wrbq = NULL;
+ BE_DEFAULT_PDU_QUEUE_OBJECT *iscsi_defq = NULL;
+
+ /* Assert that all connections are terminated. */
+ ASSERT(sa_is_list_empty
+ (&function_object->links.cxn_list_head));
+
+ /* Destroy all WRB queues. */
+ while (!sa_is_list_empty
+ (&function_object->links.iscsi.wrbq_list_head)) {
+ list_entry =
+ sa_list_head(&function_object->links.iscsi.
+ wrbq_list_head);
+ iscsi_wrbq =
+ SA_CONTAINING_RECORD(list_entry,
+ BE_ISCSI_WRB_QUEUE_OBJECT,
+ wrbq_list);
+
+ status = be_iscsi_wrb_queue_destroy(iscsi_wrbq);
+ ASSERT(status == BE_SUCCESS);
+ }
+
+ /* Destroy the default PDU queues */
+ while (!sa_is_list_empty
+ (&function_object->links.iscsi.defq_list_head)) {
+ list_entry =
+ sa_list_head(&function_object->links.iscsi.
+ defq_list_head);
+ iscsi_defq =
+ SA_CONTAINING_RECORD(list_entry,
+ BE_DEFAULT_PDU_QUEUE_OBJECT,
+ func_list);
+
+ status = be_iscsi_defq_destroy(iscsi_defq);
+ ASSERT(status == BE_SUCCESS);
+ }
+
+ /* Out-of-order buffers */
+ if (function_object->config.num_ooo > 0) {
+ status =
+ be_function_iscsi_ooo_buffers_remove
+ (function_object);
+ ASSERT(status == BE_SUCCESS);
+ }
+ /* SGLs */
+ if (function_object->config.num_sgl > 0) {
+ status =
+ be_iscsi_remove_sgl_pages(function_object);
+ ASSERT(status == BE_SUCCESS);
+ }
+ }
+#endif
+
+#ifdef FUNCTION_NIC
+
+ if (!be_function_is_iscsi(function_object)) {
+
+ /* Multicast */
+ if (function_object->config.num_multicast > 0) {
+ status =
+ be_rxf_multicast_config(function_object, FALSE,
+ 0, NULL, NULL, NULL,
+ NULL);
+ ASSERT(status == BE_SUCCESS);
+ }
+ /* RSS Disable */
+ if (function_object->config.rss_type != RSS_ENABLE_NONE) {
+ status =
+ be_rxf_rss_config(function_object,
+ RSS_ENABLE_NONE, 0, NULL, 0,
+ 0, NULL, 0, NULL, NULL, NULL,
+ NULL);
+ ASSERT(status == BE_SUCCESS);
+ }
+ }
+#endif
+
+#ifdef FUNCTION_NIC
+ /* ETX */
+ while (!sa_is_list_empty(&function_object->links.eth_sq_list_head)) {
+ list_entry =
+ sa_list_head(&function_object->links.eth_sq_list_head);
+ eth_sq =
+ SA_CONTAINING_RECORD(list_entry, BE_ETHSQ_OBJECT,
+ list);
+
+ status = be_eth_sq_destroy(eth_sq);
+ ASSERT(status == BE_SUCCESS);
+ }
+
+ /* ERX */
+ while (!sa_is_list_empty(&function_object->links.eth_rq_list_head)) {
+
+ list_entry =
+ sa_list_head(&function_object->links.eth_rq_list_head);
+ eth_rq =
+ SA_CONTAINING_RECORD(list_entry, BE_ETHRQ_OBJECT,
+ list);
+
+ status = be_eth_rq_destroy(eth_rq);
+ ASSERT(status == BE_SUCCESS);
+ }
+
+ /* VLAN */
+ if (function_object->config.num_vlan > 0) {
+ status =
+ be_rxf_vlan_config(function_object, FALSE, 0, NULL,
+ NULL, NULL, NULL);
+ ASSERT(status == BE_SUCCESS);
+ }
+#endif
+
+ /*
+ * 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 (function_object->links.mcc) {
+ status = be_mcc_ring_destroy(function_object->links.mcc);
+ }
+ /* CQs */
+ while (!sa_is_list_empty(&function_object->links.cq_list_head)) {
+ list_entry =
+ sa_list_head(&function_object->links.cq_list_head);
+ cq = SA_CONTAINING_RECORD(list_entry, BE_CQ_OBJECT,
+ cq_list);
+
+ status = be_cq_destroy(cq);
+ ASSERT(status == BE_SUCCESS);
+ }
+
+ /* EQs */
+ while (!sa_is_list_empty(&function_object->links.eq_list_head)) {
+ list_entry =
+ sa_list_head(&function_object->links.eq_list_head);
+ eq = SA_CONTAINING_RECORD(list_entry, BE_EQ_OBJECT,
+ eq_list);
+
+ status = be_eq_destroy(eq);
+ ASSERT(status == BE_SUCCESS);
+ }
+
+ /*
+ * If interrupts are disabled, clear any CEV interrupt assertions that
+ * fired after we stopped processing EQs.
+ */
+ ctrl.dw = PCICFG1_READ(function_object, host_timer_int_ctrl);
+ if (!ctrl.hostintr) {
+ if (be_function_is_networking(function_object)) {
+ isr = CSR_READ(function_object, cev.isr1);
+ } else {
+ isr = CSR_READ(function_object, cev.isr0);
+ }
+ } else {
+ /* This should never happen... */
+ TRACE(DL_ERR,
+ "Calling function_cleanup with interrupts enabled.");
+ }
+
+ /* Function object destroy */
+ status =
+ be_function_object_destroy(function_object,
+ function_object->parent_chip);
+ ASSERT(status == BE_SUCCESS);
+
+ return status;
+}
+
+/*!
+
+@...ef
+ This routine adds a event queue object to a function object to allow
+ for correct tracking and reference counting.
+
+@...am
+ function_object - Function object to add the object to.
+
+@...am
+ EqObject - Event queue object to add.
+
+@...urn
+
+@...e
+ IRQL < DISPATCH_LEVEL
+
+*/
+void
+_be_function_add_eq(IN PBE_FUNCTION_OBJECT function_object,
+ IN PBE_EQ_OBJECT eq_object)
+{
+ FUNCTION_ASSERT(function_object);
+ EQ_ASSERT(eq_object);
+
+ _be_function_lock(function_object);
+
+ sa_atomic_increment(&function_object->ref_count);
+ sa_insert_tail_list(&function_object->links.eq_list_head,
+ &eq_object->eq_list);
+
+ _be_function_unlock(function_object);
+}
+
+/*!
+
+@...ef
+ This routine removes a event queue object from a function object and
+ drops the reference count for the given function object.
+
+@...am
+ function_object - Function object to remove the object from.
+
+@...am
+ EqObject - Event queue object to remove.
+
+@...urn
+
+@...e
+ IRQL < DISPATCH_LEVEL
+
+*/
+void
+_be_function_remove_eq(IN PBE_FUNCTION_OBJECT function_object,
+ IN PBE_EQ_OBJECT eq_object)
+{
+ FUNCTION_ASSERT(function_object);
+ EQ_ASSERT(eq_object);
+
+ _be_function_lock(function_object);
+
+ sa_remove_entry_list(&eq_object->eq_list);
+ sa_atomic_decrement(&function_object->ref_count);
+
+ _be_function_unlock(function_object);
+
+}
+
+/*!
+
+@...ef
+ This routine adds a completion queue object to a function object to allow
+ for correct tracking and reference counting.
+
+@...am
+ function_object - Function object to add the object to.
+
+@...am
+ CqObject - Completion queue object to add.
+
+@...urn
+
+@...e
+ IRQL < DISPATCH_LEVEL
+
+*/
+void
+_be_function_add_cq(IN PBE_FUNCTION_OBJECT function_object,
+ IN PBE_CQ_OBJECT cq_object)
+{
+ FUNCTION_ASSERT(function_object);
+ CQ_ASSERT(cq_object);
+
+ _be_function_lock(function_object);
+
+ sa_atomic_increment(&function_object->ref_count);
+ sa_insert_tail_list(&function_object->links.cq_list_head,
+ &cq_object->cq_list);
+
+ _be_function_unlock(function_object);
+}
+
+/*!
+
+@...ef
+ This routine removes a completion queue object from a function object and
+ drops the reference count for the given function object.
+
+@...am
+ function_object - Function object to remove the object from.
+
+@...am
+ CqObject - Completion queue object to remove.
+
+@...urn
+
+@...e
+ IRQL < DISPATCH_LEVEL
+
+*/
+void
+_be_function_remove_cq(IN PBE_FUNCTION_OBJECT function_object,
+ IN PBE_CQ_OBJECT cq_object)
+{
+ FUNCTION_ASSERT(function_object);
+ CQ_ASSERT(cq_object);
+
+ _be_function_lock(function_object);
+
+ sa_remove_entry_list(&cq_object->cq_list);
+ sa_atomic_decrement(&function_object->ref_count);
+
+ _be_function_unlock(function_object);
+}
+
+/*!
+
+@...ef
+ This routine adds an Ethernet Send queue object to a function
+ object to allow for correct tracking and reference counting.
+
+@...am
+ func_obj - function object to add the object to.
+
+@...am
+ eth_sq - ethernet send queue object to add.
+
+@...urn
+
+@...e
+ IRQL < DISPATCH_LEVEL
+
+*/
+void
+_be_function_add_eth_sq(IN PBE_FUNCTION_OBJECT function_object,
+ IN PBE_ETHSQ_OBJECT eth_sq)
+{
+ _be_function_lock(function_object);
+
+ sa_atomic_increment(&function_object->ref_count);
+ sa_insert_tail_list(&function_object->links.eth_sq_list_head,
+ ð_sq->list);
+
+ _be_function_unlock(function_object);
+
+}
+
+/*!
+
+@...ef
+ This routine removes an Ethernet Send Queue object from a function object
+ and drops the reference count for the given function object.
+
+@...am
+ function_object - Function object to remove the object from.
+
+@...am
+ EthSq - Ethernet Send Queue object to remove.
+
+@...urn
+
+@...e
+ IRQL < DISPATCH_LEVEL
+
+*/
+void
+_be_function_remove_eth_sq(IN PBE_FUNCTION_OBJECT function_object,
+ IN PBE_ETHSQ_OBJECT eth_sq)
+{
+ _be_function_lock(function_object);
+
+ sa_remove_entry_list(ð_sq->list);
+ sa_atomic_decrement(&function_object->ref_count);
+
+ _be_function_unlock(function_object);
+}
+
+/*!
+
+@...ef
+ This routine adds an ethernet receive queue object to a
+ function object to allow for correct tracking and reference counting.
+
+@...am
+ function_object - Function object to add the object to.
+
+@...am
+ EthRq - Ethernet Receive Queue object to add.
+
+@...am
+ RssIndex - Rss Index that this RQ will map to. Unless this RQ is for
+ a priviledged execution environment, the RssIndex must be
+ set to RSS_ID_INDEX_DQ.
+
+@...urn
+
+@...e
+ IRQL < DISPATCH_LEVEL
+
+*/
+void
+_be_function_add_eth_rq(IN PBE_FUNCTION_OBJECT function_object,
+ IN PBE_ETHRQ_OBJECT eth_rq)
+{
+ _be_function_lock(function_object);
+
+ sa_atomic_increment(&function_object->ref_count);
+ sa_insert_tail_list(&function_object->links.eth_rq_list_head,
+ ð_rq->list);
+
+ _be_function_unlock(function_object);
+}
+
+/*!
+
+@...ef
+ This routine removes an Ethernet receive queue object from a function object
+ and drops the reference count for the given function object.
+
+@...am
+ function_object - Function object to remove the object from.
+
+@...am
+ EthRq - Ethernet receive queue object to remove.
+
+@...am
+ RssIndex - Rss Index for the EthRq to remove.
+
+@...urn
+
+@...e
+ IRQL < DISPATCH_LEVEL
+
+*/
+void
+_be_function_remove_eth_rq(IN PBE_FUNCTION_OBJECT function_object,
+ IN PBE_ETHRQ_OBJECT eth_rq)
+{
+ _be_function_lock(function_object);
+
+ sa_remove_entry_list(ð_rq->list);
+ sa_atomic_decrement(&function_object->ref_count);
+
+ _be_function_unlock(function_object);
+
+}
+
+/*!
+
+@...ef
+ This routine adds a Mcc Send queue object to a function object to allow
+ for correct tracking and reference counting.
+
+@...am
+ function_object - Function object to add the object to.
+
+@...am
+ MccSq - Mcc Send Queue object to add.
+
+@...urn
+
+@...e
+ IRQL < DISPATCH_LEVEL
+
+*/
+void
+_be_function_add_mcc(IN PBE_FUNCTION_OBJECT function_object,
+ IN PBE_MCC_OBJECT mcc)
+{
+ FUNCTION_ASSERT(function_object);
+
+ ASSERT(function_object->links.mcc == NULL);
+ MCC_ASSERT(mcc);
+
+ _be_function_lock(function_object);
+
+ sa_atomic_increment(&function_object->ref_count);
+ function_object->links.mcc = mcc;
+
+ _be_function_unlock(function_object);
+}
+
+/*!
+
+@...ef
+ This routine removes an MCC Send Queue object from a function object and
+ drops the reference count for the given function object.
+
+@...am
+ function_object - Function object to remove the object from.
+
+@...am
+ MccSq - Mcc Send Queue object to remove.
+
+@...urn
+
+@...e
+ IRQL < DISPATCH_LEVEL
+
+*/
+void
+_be_function_remove_mcc(IN PBE_FUNCTION_OBJECT function_object,
+ IN PBE_MCC_OBJECT mcc)
+{
+ FUNCTION_ASSERT(function_object);
+
+ MCC_ASSERT(function_object->links.mcc);
+
+ MCC_ASSERT(mcc);
+
+ SA_NOT_USED(mcc);
+
+ _be_function_lock(function_object);
+
+ function_object->links.mcc = NULL;
+ sa_atomic_decrement(&function_object->ref_count);
+
+ _be_function_unlock(function_object);
+}
+
+/*!
+
+@...ef
+ This routine adds an iSCSI default PDU queue object to a function object to
+ allow for correct tracking and reference counting.
+
+@...am
+ function_object - Function object to add the object to.
+
+@...am
+ DefaultPduObject - Default PDU object to add.
+
+@...urn
+
+@...e
+ IRQL < DISPATCH_LEVEL
+
+*/
+void
+_be_function_add_default_pdu_queue(IN PBE_FUNCTION_OBJECT function_object,
+ IN PBE_DEFAULT_PDU_QUEUE_OBJECT
+ default_pdu_object)
+{
+ FUNCTION_ASSERT(function_object);
+ ASSERT(be_function_is_iscsi(function_object));
+
+ _be_function_lock(function_object);
+
+ sa_atomic_increment(&function_object->ref_count);
+ sa_insert_tail_list(&function_object->links.iscsi.defq_list_head,
+ &default_pdu_object->func_list);
+
+ _be_function_unlock(function_object);
+}
+
+/*!
+
+@...ef
+ This routine removes an iSCSI default PDU Queue object from a function
+ object and drops the reference count for the given function object.
+
+@...am
+ function_object - Function object to remove the object from.
+
+@...am
+ DefaultPduObject- iSCSI Default PDU Queue object to remove.
+
+@...urn
+
+@...e
+ IRQL < DISPATCH_LEVEL
+
+*/
+void
+_be_function_remove_default_pdu_queue(IN PBE_FUNCTION_OBJECT
+ function_object,
+ IN PBE_DEFAULT_PDU_QUEUE_OBJECT
+ default_pdu_object)
+{
+ FUNCTION_ASSERT(function_object);
+ ASSERT(be_function_is_iscsi(function_object));
+
+ _be_function_lock(function_object);
+
+ sa_remove_entry_list(&default_pdu_object->func_list);
+ sa_atomic_decrement(&function_object->ref_count);
+
+ _be_function_unlock(function_object);
+}
+
+
+/*!
+
+@...ef
+ This routine adds a event queue object to a function object to allow
+ for correct tracking and reference counting.
+
+@...am
+ function_object - Function object to add the object to.
+
+@...am
+ EqObject - Event queue object to add.
+
+@...urn
+
+@...e
+ IRQL < DISPATCH_LEVEL
+
+*/
+void
+_be_function_add_wrbq(IN PBE_FUNCTION_OBJECT function_object,
+ IN PBE_ISCSI_WRB_QUEUE_OBJECT wrbq)
+{
+ FUNCTION_ASSERT(function_object);
+ ISCSI_WRBQ_ASSERT(wrbq);
+
+ _be_function_lock(function_object);
+
+ sa_atomic_increment(&function_object->ref_count);
+ sa_insert_tail_list(&function_object->links.iscsi.wrbq_list_head,
+ &wrbq->wrbq_list);
+
+ _be_function_unlock(function_object);
+}
+
+/*!
+
+@...ef
+ This routine removes a event queue object from a function object and
+ drops the reference count for the given function object.
+
+@...am
+ function_object - Function object to remove the object from.
+
+@...am
+ EqObject - Event queue object to remove.
+
+@...urn
+
+@...e
+ IRQL < DISPATCH_LEVEL
+
+*/
+void
+_be_function_remove_wrbq(IN PBE_FUNCTION_OBJECT function_object,
+ IN PBE_ISCSI_WRB_QUEUE_OBJECT wrbq)
+{
+ FUNCTION_ASSERT(function_object);
+ ISCSI_WRBQ_ASSERT(wrbq);
+
+ _be_function_lock(function_object);
+
+ sa_remove_entry_list(&wrbq->wrbq_list);
+ sa_atomic_decrement(&function_object->ref_count);
+
+ _be_function_unlock(function_object);
+
+}
+
+PVOID
+be_function_prepare_embedded_ioctl(IN PBE_FUNCTION_OBJECT function_object,
+ IN PMCC_WRB wrb,
+ IN u32 payload_length,
+ IN u32 request_length,
+ IN u32 response_length,
+ IN u32 opcode, IN u32 subsystem)
+{
+ PIOCTL_REQUEST_HEADER header = NULL;
+
+ ASSERT(wrb);
+ FUNCTION_ASSERT(function_object);
+
+ ASSERT(payload_length <= SA_SIZEOF_FIELD(MCC_WRB, payload));
+
+ wrb->embedded = 1;
+ wrb->payload_length =
+ MIN(payload_length, SA_SIZEOF_FIELD(MCC_WRB, payload));
+
+ header = (PIOCTL_REQUEST_HEADER) &wrb->payload;
+
+ header->timeout = 0;
+ header->domain = be_function_get_pd_number(function_object);
+ header->request_length = MAX(request_length, response_length);
+ header->opcode = opcode;
+ header->subsystem = subsystem;
+
+ return header;
+}
+
+PVOID
+be_function_prepare_nonembedded_ioctl(IN PBE_FUNCTION_OBJECT
+ function_object, IN PMCC_WRB wrb,
+ IN PVOID ioctl_va, IN u64 ioctl_pa,
+ IN u32 payload_length,
+ IN u32 request_length,
+ IN u32 response_length,
+ IN u32 opcode, IN u32 subsystem)
+{
+ PIOCTL_REQUEST_HEADER header = NULL;
+
+ ASSERT(wrb);
+ ASSERT(ioctl_va);
+ FUNCTION_ASSERT(function_object);
+
+ header = (PIOCTL_REQUEST_HEADER) ioctl_va;
+
+ wrb->embedded = 0;
+ wrb->payload_length = payload_length;
+
+ /*
+ * 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.
+ */
+ wrb->sge_count = 1;
+ wrb->payload.sgl[0].length = payload_length;
+ wrb->payload.sgl[0].pa_lo = sa_lo(ioctl_pa);
+ wrb->payload.sgl[0].pa_hi = sa_hi(ioctl_pa);
+
+ header->timeout = 0;
+ header->domain = be_function_get_pd_number(function_object);
+ header->request_length = MAX(request_length, response_length);
+ header->opcode = opcode;
+ header->subsystem = subsystem;
+
+ return header;
+}
+
+PMCC_WRB be_function_peek_mcc_wrb(IN PBE_FUNCTION_OBJECT function_object)
+{
+ PMCC_WRB wrb = NULL;
+ FUNCTION_ASSERT(function_object);
+
+ if (function_object->links.mcc) {
+
+ wrb = _be_mpu_peek_ring_wrb(function_object->links.mcc, FALSE);
+
+ } else {
+ wrb = (PMCC_WRB) &function_object->mailbox.va->wrb;
+ }
+
+ if (wrb) {
+ sa_memset(wrb, 0, sizeof(MCC_WRB));
+ }
+
+ return wrb;
+}
+
+/*!
+@...ef
+ This routine posts an MCC WRB command to a function object's MCC send
+ queue (if avaiable) or posts the WRB to the MCC WRB mail box if a send
+ queue is not setup.
+@...am
+ function_object - function object to add the object to.
+@...am
+ wrb - wrb to post. This may be a va from the
+ be_function_peek_mcc_wrb function, so the
+ driver need not declare additional memory.
+@...am
+ callback - address of a callback routine to invoke once the WRB
+ is completed.
+@...am
+ callback_context - opaque context to be passed during the call to
+ the callback.
+@...urn
+ BE_SUCCESS if successfull, otherwise a useful error code is returned.
+
+@...e
+ IRQL < DISPATCH_LEVEL
+*/
+BESTATUS
+be_function_post_mcc_wrb(IN PBE_FUNCTION_OBJECT function_object,
+ IN PMCC_WRB wrb,
+ IN MCC_WRB_CQE_CALLBACK callback,
+ IN PVOID callback_context,
+ IN PVOID optional_ioctl_va)
+{
+ BE_MCC_WRB_RESPONSE_COPY response_copy = { 0 };
+ return be_function_post_mcc_wrb_complete(function_object, wrb, NULL,
+ callback, callback_context, NULL, NULL,
+ optional_ioctl_va, response_copy);
+}
+
+BESTATUS
+be_function_post_mcc_wrb_with_queue_context(IN PBE_FUNCTION_OBJECT
+ function_object,
+ IN PMCC_WRB wrb,
+ IN PBE_GENERIC_QUEUE_CONTEXT
+ queue_context,
+ IN MCC_WRB_CQE_CALLBACK
+ callback,
+ IN PVOID callback_context,
+ IN PVOID optional_ioctl_va)
+{
+ BE_MCC_WRB_RESPONSE_COPY response_copy = { 0 };
+ return be_function_post_mcc_wrb_complete(function_object,
+ wrb, queue_context, callback, callback_context, NULL,
+ NULL, optional_ioctl_va, response_copy);
+}
+
+BESTATUS
+be_function_post_mcc_wrb_with_copy(IN PBE_FUNCTION_OBJECT function_object,
+ IN PMCC_WRB wrb,
+ IN PBE_GENERIC_QUEUE_CONTEXT
+ queue_context,
+ IN MCC_WRB_CQE_CALLBACK callback,
+ IN PVOID callback_context,
+ IN PVOID optional_ioctl_va,
+ IN BE_MCC_WRB_RESPONSE_COPY
+ response_copy)
+{
+ return be_function_post_mcc_wrb_complete(function_object,
+ wrb, queue_context, callback, callback_context, NULL,
+ NULL, optional_ioctl_va, response_copy);
+}
+
+BESTATUS
+be_function_post_mcc_wrb_with_internal_callback(
+ IN PBE_FUNCTION_OBJECT function_object,
+ IN PMCC_WRB wrb,
+ IN PBE_GENERIC_QUEUE_CONTEXT queue_context,
+ IN MCC_WRB_CQE_CALLBACK callback,
+ IN PVOID callback_context,
+ IN MCC_WRB_CQE_CALLBACK internal_callback,
+ IN PVOID internal_callback_context,
+ IN PVOID optional_ioctl_va)
+{
+ BE_MCC_WRB_RESPONSE_COPY response_copy = { 0 };
+ return be_function_post_mcc_wrb_complete(function_object, wrb,
+ queue_context, callback, callback_context,
+ internal_callback, internal_callback_context,
+ optional_ioctl_va, response_copy);
+}
+
+#if defined(SA_DEBUG)
+void be_function_debug_print_wrb(PBE_FUNCTION_OBJECT function_object,
+ PMCC_WRB wrb,
+ PVOID optional_ioctl_va,
+ PBE_MCC_WRB_CONTEXT wrb_context)
+{
+
+ PIOCTL_REQUEST_HEADER header = NULL;
+ if (wrb->embedded) {
+ header = (PIOCTL_REQUEST_HEADER) &wrb->payload;
+ } else {
+ header = (PIOCTL_REQUEST_HEADER) optional_ioctl_va;
+ }
+
+ /* Save the completed count before posting for a debug assert. */
+ wrb_context->consumed_count = function_object->stats.consumed_wrbs;
+
+ if (header) {
+ wrb_context->opcode = header->opcode;
+ wrb_context->subsystem = header->subsystem;
+
+ } else {
+ wrb_context->opcode = 0;
+ wrb_context->subsystem = 0;
+ TRACE(DL_IOCTL,
+ "Post IOCTL. emul:0 embed:0 Unknown sub/op. ctx:%p",
+ wrb_context);
+ }
+}
+#else
+#define be_function_debug_print_wrb(a_, b_, c_, d_)
+#endif
+
+BESTATUS
+be_function_post_mcc_wrb_complete(IN PBE_FUNCTION_OBJECT function_object,
+ IN PMCC_WRB wrb,
+ IN PBE_GENERIC_QUEUE_CONTEXT
+ queue_context,
+ IN MCC_WRB_CQE_CALLBACK callback,
+ IN PVOID callback_context,
+ IN MCC_WRB_CQE_CALLBACK
+ internal_callback,
+ IN PVOID internal_callback_context,
+ IN PVOID optional_ioctl_va,
+ IN BE_MCC_WRB_RESPONSE_COPY
+ response_copy)
+{
+ BESTATUS status;
+ PBE_MCC_WRB_CONTEXT wrb_context = NULL;
+ FUNCTION_ASSERT(function_object);
+
+ if (queue_context) {
+
+ /* Initialize context. */
+ queue_context->context.internal_callback =
+ internal_callback;
+ queue_context->context.internal_callback_context =
+ internal_callback_context;
+ queue_context->context.callback = callback;
+ queue_context->context.callback_context = callback_context;
+ queue_context->context.copy = response_copy;
+ queue_context->context.optional_ioctl_va =
+ optional_ioctl_va;
+
+ /* Queue this request */
+ status =
+ be_function_queue_mcc_wrb(function_object,
+ queue_context);
+
+ 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(function_object);
+ if (!wrb_context) {
+ TRACE(DL_WARN, "Failed to allocate MCC WRB context.");
+ status = BE_STATUS_SYSTEM_RESOURCES;
+ goto Error;
+ }
+ /* Initialize context. */
+ SA_ZERO_MEM(wrb_context);
+ wrb_context->internal_callback = internal_callback;
+ wrb_context->internal_callback_context = internal_callback_context;
+ wrb_context->callback = callback;
+ wrb_context->callback_context = callback_context;
+ wrb_context->copy = response_copy;
+ 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.
+ */
+ SA_C_ASSERT(sizeof(wrb->tag) >= sizeof(u64));
+ *((u64 *) wrb->tag) = SA_PTR_TO_U64(wrb_context);
+
+ /* Print info about this IOCTL for debug builds. */
+ be_function_debug_print_wrb(function_object, wrb,
+ optional_ioctl_va, wrb_context);
+
+ /*
+ * issue the WRB to the MPU as appropriate
+ */
+ if (function_object->links.mcc) {
+ /*
+ * we're in WRB mode, pass to the mcc layer
+ */
+ status =
+ _be_mpu_post_wrb_ring(function_object->links.
+ mcc, wrb, wrb_context);
+ } else {
+ /*
+ * we're in mailbox mode
+ */
+ status = _be_mpu_post_wrb_mailbox(function_object, wrb,
+ wrb_context);
+
+ /* mailbox mode always completes synchronously */
+ ASSERT(status != BE_STATUS_PENDING);
+ }
+
+Error:
+
+ return status;
+}
+
+void _be_function_lock(PBE_FUNCTION_OBJECT fo)
+{
+ be_lock_acquire(&fo->lock);
+}
+
+void _be_function_unlock(PBE_FUNCTION_OBJECT fo)
+{
+ be_lock_release(&fo->lock);
+}
+
+u32 be_function_get_function_number(PBE_FUNCTION_OBJECT function_object)
+{
+ FUNCTION_ASSERT(function_object);
+ return function_object->pci_function_number;
+}
+
+u32 be_function_get_function_type(PBE_FUNCTION_OBJECT function_object)
+{
+ FUNCTION_ASSERT(function_object);
+ return function_object->type;
+}
+
+u32 be_function_get_pd_number(PBE_FUNCTION_OBJECT function_object)
+{
+ FUNCTION_ASSERT(function_object);
+
+ /* only PD0 supported in Linux drivers */
+ return 0;
+}
+
+boolean be_function_is_vm(PBE_FUNCTION_OBJECT function_object)
+{
+ FUNCTION_ASSERT(function_object);
+ return be_function_get_pd_number(function_object) > 0;
+}
+
+/*!
+
+@...ef
+ References the given object. The object is guaranteed to remain active
+ until the reference count drops to zero.
+
+@...am
+ cq_object - CQ handle returned from cq_object_create.
+
+@...urn
+ returns the current reference count on the object
+
+@...e
+ IRQL: any
+
+*/
+u32 _be_function_reference(PBE_FUNCTION_OBJECT function_object)
+{
+ FUNCTION_ASSERT(function_object);
+ return sa_atomic_increment(&function_object->ref_count);
+}
+
+/*!
+@...ef
+ Dereferences the given object. The object is guaranteed to remain
+ active until the reference count drops to zero.
+@...am
+@...urn
+ returns the current reference count on the object
+@...e
+ IRQL: any
+*/
+u32 _be_function_dereference(PBE_FUNCTION_OBJECT function_object)
+{
+ FUNCTION_ASSERT(function_object);
+ return sa_atomic_decrement(&function_object->ref_count);
+}
+
+BESTATUS
+be_function_ring_destroy_async(PBE_FUNCTION_OBJECT function_object,
+ u32 id,
+ u32 ring_type,
+ MCC_WRB_CQE_CALLBACK callback,
+ PVOID callback_context,
+ MCC_WRB_CQE_CALLBACK internal_callback,
+ PVOID internal_callback_context)
+{
+
+ IOCTL_COMMON_RING_DESTROY *ioctl = NULL;
+ MCC_WRB *wrb = NULL;
+ BESTATUS status = 0;
+
+ FUNCTION_ASSERT(function_object);
+
+ be_lock_wrb_post(function_object);
+
+ TRACE(DL_INFO, "Destroy ring id:%d type:%d", id, ring_type);
+
+ wrb = be_function_peek_mcc_wrb(function_object);
+ 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 ioctl, including request/response sizes. */
+ ioctl = BE_FUNCTION_PREPARE_EMBEDDED_IOCTL(function_object, wrb,
+ COMMON_RING_DESTROY);
+
+ ioctl->params.request.id = id;
+ ioctl->params.request.ring_type = ring_type;
+
+ /* Post the Ioctl */
+ status =
+ be_function_post_mcc_wrb_with_internal_callback
+ (function_object, wrb, NULL, callback, callback_context,
+ internal_callback, internal_callback_context, ioctl);
+ if (status != BE_SUCCESS && status != BE_PENDING) {
+ TRACE(DL_ERR,
+ "Ring destroy ioctl failed. id:%d ring_type:%d", id,
+ ring_type);
+ goto Error;
+ }
+
+Error:
+ be_unlock_wrb_post(function_object);
+ return status;
+}
+
+BESTATUS
+be_function_ring_destroy(PBE_FUNCTION_OBJECT function_object, u32 id,
+ u32 ring_type)
+{
+ return be_function_ring_destroy_async(function_object, id,
+ ring_type, NULL, NULL, NULL,
+ NULL);
+}
+
+void be_sgl_to_pa_list(PSA_SGL sgl, PHYS_ADDR *pa_list, u32 max_num)
+{
+ u32 offset = sa_sgl_get_offset(sgl);
+ u32 num_pages = sa_sgl_get_page_count(sgl);
+ u32 i = 0;
+ u64 pa;
+
+ ASSERT(pa_list);
+ /* MUST BE page aligned if >1 page in ring */
+ ASSERT((offset == 0) || (num_pages == 1));
+
+ for (i = 0; i < MIN(num_pages, max_num); i++) {
+ pa = sa_sgl_get_page(sgl, i) + offset;
+ offset = 0; /* offset applies to first page only */
+
+ ASSERT(pa);
+
+ pa_list[i].lo = sa_lo(pa);
+ pa_list[i].hi = sa_hi(pa);
+ }
+}
+
+/*!
+
+@...ef
+ This routine adds an iSCSI connectoin object to a function object to allow
+ for correct tracking and reference counting.
+
+@...am
+ function_object - Function object to add the object to.
+
+@...am
+ ConnectionObject - iSCSI Connection object to add.
+
+@...urn
+
+@...e
+ IRQL < DISPATCH_LEVEL
+
+*/
+void
+_be_function_add_iscsi_connection(IN PBE_FUNCTION_OBJECT function_object,
+ IN PBE_ISCSI_CONNECTION_OBJECT
+ connection_object)
+{
+ FUNCTION_ASSERT(function_object);
+
+ ASSERT(be_function_is_iscsi(function_object) == TRUE);
+
+ ISCSI_CXN_ASSERT(connection_object);
+
+ _be_function_lock(function_object);
+
+ sa_atomic_increment(&function_object->ref_count);
+ sa_insert_tail_list(&function_object->links.cxn_list_head,
+ &connection_object->connection_list);
+
+ _be_function_unlock(function_object);
+}
+
+/*!
+
+@...ef
+ This routine removes an iSCSI Connection object from a function object and
+ drops the reference count for the given function object.
+
+@...am
+ function_object - Function object to remove the object from.
+
+@...am
+ ConnectionObject - iSCSI connection object to remove.
+
+@...urn
+
+@...e
+ IRQL < DISPATCH_LEVEL
+
+*/
+void
+_be_function_remove_iscsi_connection(IN PBE_FUNCTION_OBJECT
+ function_object,
+ IN PBE_ISCSI_CONNECTION_OBJECT
+ connection_object)
+{
+ FUNCTION_ASSERT(function_object);
+
+ ASSERT(be_function_is_iscsi(function_object) == TRUE);
+
+ ISCSI_CXN_ASSERT(connection_object);
+
+ _be_function_lock(function_object);
+
+ sa_remove_entry_list(&connection_object->connection_list);
+ sa_atomic_decrement(&function_object->ref_count);
+
+ _be_function_unlock(function_object);
+
+}
+
+void be_function_lock_mcc(IN PBE_FUNCTION_OBJECT function_object)
+{
+ be_lock_wrb_post(function_object);
+}
+
+void be_function_unlock_mcc(IN PBE_FUNCTION_OBJECT function_object)
+{
+ be_unlock_wrb_post(function_object);
+}
+
+/*
+ *---------------------------------------------------------------------------
+ * Function: be_function_enable_interrupts
+ * Enables interrupts for the given PCI function.
+ * function_object -
+ * return return_type - void
+ *----------------------------------------------------------------------------
+ */
+void be_function_enable_interrupts(IN PBE_FUNCTION_OBJECT function_object)
+{
+ BE_EQ_OBJECT *eq = NULL;
+ CQ_DB cq_db;
+ PCICFG_HOST_TIMER_INT_CTRL_CSR ctrl;
+ u32 isr;
+
+ FUNCTION_ASSERT(function_object);
+
+ ctrl.dw = PCICFG1_READ(function_object, host_timer_int_ctrl);
+ if (!ctrl.hostintr) {
+
+ /*
+ * Read-clear the ISR to make sure that any EQs that
+ * fired after the host interrupt was masked are no longer
+ * asserted. If the EQs still have a producer-consumer
+ * mismatch, they will re-assert after they are armed. This
+ * handles the situation where software polls CQs and EQs
+ * with interrupts disabled.
+ */
+ if (be_function_is_networking(function_object)) {
+ isr = CSR_READ(function_object, cev.isr1);
+ } else {
+ isr = CSR_READ(function_object, cev.isr0);
+ }
+
+ /*
+ * Read-Modify-Write the control register
+ *
+ */
+ ctrl.hostintr = 1;
+ PCICFG1_WRITE_CONST(function_object, host_timer_int_ctrl,
+ ctrl.dw);
+ }
+
+ cq_db.dw = 0; /* clear entire doorbell */
+ cq_db.event = 1;
+ cq_db.rearm = 1;
+ cq_db.num_popped = 0;
+
+ /* Lock the function object while walking the EQ list. */
+ _be_function_lock(function_object);
+
+ /* Rearm each EQ. */
+ SA_FOR_EACH_LIST_ENTRY(eq, function_object->links.eq_list_head,
+ BE_EQ_OBJECT, eq_list) {
+
+ EQ_ASSERT(eq);
+
+ cq_db.qid = eq->eq_id;
+
+ PD_WRITE(function_object, cq_db, cq_db);
+ }
+
+ _be_function_unlock(function_object);
+}
+
+/*
+ *----------------------------------------------------------------------------
+ * Function: be_function_disable_interrupts
+ * Disables interrupts for the given PCI function.
+ * function_object -
+ * return return_type - void
+ *----------------------------------------------------------------------------
+ */
+void be_function_disable_interrupts(IN PBE_FUNCTION_OBJECT function_object)
+{
+ PCICFG_HOST_TIMER_INT_CTRL_CSR ctrl;
+
+ FUNCTION_ASSERT(function_object);
+
+ /*
+ * Read-Modify-Write of the control register in PCI config space.
+ */
+ ctrl.dw = PCICFG1_READ(function_object, host_timer_int_ctrl);
+ if (ctrl.hostintr) {
+ ctrl.hostintr = 0;
+ PCICFG1_WRITE_CONST(function_object, host_timer_int_ctrl,
+ ctrl.dw);
+ }
+}
+
+/*
+ *----------------------------------------------------------------------------
+ * Function: be_function_nop
+ * Issues a NOP command to the MCC ring. The command is completed with
+ * a successful status. This can be used to pend operations until a
+ * short time in the future, since the callback function will be
+ * invoked upon command completion. The returned status
+ * will be BE_PENDING if the command was issued successfully.
+ * function_object -
+ * callback - Callback function invoked when the NOP completes.
+ * callback_context - Passed to the callback function.
+ * return pend_status - BE_SUCCESS (0) on success. BE_PENDING
+ * (postive value) if the IOCTL completion is
+ * pending. Negative error code on failure.
+ *-----------------------------------------------------------------------
+ */
+BESTATUS
+be_function_nop(IN PBE_FUNCTION_OBJECT function_object,
+ IN MCC_WRB_CQE_CALLBACK callback,
+ IN PVOID callback_context,
+ IN PBE_NOP_QUEUE_CONTEXT queue_context)
+{
+ BESTATUS status = BE_SUCCESS;
+ MCC_WRB *wrb = NULL;
+ IOCTL_COMMON_NOP *ioctl = NULL;
+ PBE_GENERIC_QUEUE_CONTEXT generic_context = NULL;
+
+ FUNCTION_ASSERT(function_object);
+
+ be_lock_wrb_post(function_object);
+
+ wrb = be_function_peek_mcc_wrb(function_object);
+ if (!wrb) {
+ if (queue_context && callback) {
+ wrb = (MCC_WRB *) &queue_context->wrb_header;
+ generic_context = (PBE_GENERIC_QUEUE_CONTEXT)
+ queue_context; /* Indicate to queue */
+ generic_context->context.bytes =
+ sizeof(*queue_context);
+ } else {
+ status = BE_STATUS_NO_MCC_WRB;
+ goto Error;
+ }
+ }
+ /* Prepares an embedded ioctl, including request/response sizes. */
+ ioctl = BE_FUNCTION_PREPARE_EMBEDDED_IOCTL(function_object, wrb,
+ COMMON_NOP);
+
+ /* Post the Ioctl */
+ status = be_function_post_mcc_wrb_with_queue_context(function_object,
+ wrb,
+ generic_context,
+ callback,
+ callback_context,
+ ioctl);
+
+Error:
+ be_unlock_wrb_post(function_object);
+
+ return status;
+}
+
+/*-----------------------------------------------------------------------------
+ * 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.
+ * function_object -
+ * fw_version - Pointer to response buffer if callback is NULL.
+ * callback - Callback function invoked when the IOCTL completes.
+ * callback_context - Passed to the callback function.
+ * return pend_status - BE_SUCCESS (0) on success.
+ * BE_PENDING (postive value) if the IOCTL
+ * completion is pending. Negative error code on failure.
+ *---------------------------------------------------------------------------
+ */
+BESTATUS
+be_function_get_fw_version(IN PBE_FUNCTION_OBJECT function_object,
+ OUT IOCTL_COMMON_GET_FW_VERSION_RESPONSE_PAYLOAD
+ * fw_version, IN MCC_WRB_CQE_CALLBACK callback,
+ IN PVOID callback_context)
+{
+ BESTATUS status = BE_SUCCESS;
+ MCC_WRB *wrb = NULL;
+ IOCTL_COMMON_GET_FW_VERSION *ioctl = NULL;
+
+ FUNCTION_ASSERT(function_object);
+
+ be_lock_wrb_post(function_object);
+
+ wrb = be_function_peek_mcc_wrb(function_object);
+ if (!wrb) {
+ TRACE(DL_ERR, "MCC wrb peek failed.");
+ status = BE_STATUS_NO_MCC_WRB;
+ goto Error;
+ }
+
+ if (!callback && !fw_version) {
+ TRACE(DL_ERR, "callback and response buffer NULL!");
+ status = BE_NOT_OK;
+ goto Error;
+ }
+ /* Prepares an embedded ioctl, including request/response sizes. */
+ ioctl =
+ BE_FUNCTION_PREPARE_EMBEDDED_IOCTL(function_object, wrb,
+ COMMON_GET_FW_VERSION);
+
+ /* Post the Ioctl */
+ status = be_function_post_mcc_wrb_with_copy(function_object, wrb, NULL,
+ callback, callback_context,
+ ioctl,
+ BE_CREATE_MCC_RESPONSE_COPY(IOCTL_COMMON_GET_FW_VERSION,
+ params.response, fw_version));
+
+Error:
+ be_unlock_wrb_post(function_object);
+
+ return status;
+}
+
+BESTATUS
+be_function_queue_mcc_wrb(PBE_FUNCTION_OBJECT function_object,
+ PBE_GENERIC_QUEUE_CONTEXT queue_context)
+{
+ BESTATUS status;
+
+ FUNCTION_ASSERT(function_object);
+ ASSERT(queue_context);
+
+ /*
+ * issue the WRB to the MPU as appropriate
+ */
+ if (function_object->links.mcc) {
+
+ /* We're in ring mode. Queue this item. */
+ function_object->links.mcc->backlog_length++;
+ sa_insert_tail_list(&function_object->links.mcc->backlog,
+ &queue_context->context.list);
+
+ function_object->stats.queued_wrbs++;
+ function_object->stats.queue_length =
+ function_object->links.mcc->backlog_length;
+ function_object->stats.max_queue_length =
+ MAX(function_object->stats.queue_length,
+ function_object->stats.max_queue_length);
+
+ status = BE_PENDING;
+
+ } else {
+
+ status = BE_NOT_OK;
+
+ }
+
+ return status;
+}
+
+/*
+ *-------------------------------------------------------------------------
+ * Function: be_function_manage_FAT_log
+ * This routine can be used to manage the BladeEngine Fault Analysis
+ * Tool (FAT) log. This includes querying the FAT log size, retrieving
+ * the FAT log, and clearing the FAT log. The log data can be anaylzed
+ * by BladeEngine support tools to diagnose faults.
+ * Only host domains (domain 0) may issue this request.
+ * function_object -
+ * sgl - The SGL representing the FAT log buffer landing space.
+ * The SGL should be page aligned. It does not require
+ * a virtual address.
+ * num_pages - The number of pages in the SGL. A value of zero (0)
+ * implies no FAT log data transfer will take place.
+ * The num_pages is limited to 27 pages.
+ * page_offset - The page_offset specifies the starting page offset
+ * when retrieving the FAT log. For example, a value
+ * of 0 requests data starting at byte offset 0 of the
+ * FAT log. Likewise, a value of 5 requests data
+ * starting at byte offset 20480 of the FAT log.
+ * A caller may choose to issue multiple queries
+ * when the FAT log buffer size is larger
+ * than the number of pages specified.
+ * clear_log - Set to clear the log.
+ * log_size - The size of the BladeEngine FAT log in bytes.
+ * bytes_transferred - The number of FAT log data bytes transferred.
+ * return status - BE_SUCCESS (0) on success. Negative error code on failure
+ *----------------------------------------------------------------------------
+ */
+BESTATUS
+be_function_manage_FAT_log(IN PBE_FUNCTION_OBJECT function_object,
+ IN PSA_SGL sgl,
+ IN u32 num_pages,
+ IN u32 page_offset,
+ IN boolean clear_log,
+ OUT u32 *log_size, OUT u32 *bytes_transferred)
+{
+ IOCTL_COMMON_GET_FAT *ioctl = NULL;
+ MCC_WRB *wrb = NULL;
+ BESTATUS status = 0;
+
+ be_lock_wrb_post(function_object);
+
+ wrb = be_function_peek_mcc_wrb(function_object);
+ if (!wrb) {
+ TRACE(DL_ERR, "MCC wrb peek failed.");
+ status = BE_STATUS_NO_MCC_WRB;
+ goto error;
+ }
+ /* Prepares an embedded ioctl, including request/response sizes. */
+ ioctl =
+ BE_FUNCTION_PREPARE_EMBEDDED_IOCTL(function_object, wrb,
+ COMMON_GET_FAT);
+
+ /* Set parameters */
+ ioctl->params.request.clear_log = clear_log;
+ ioctl->params.request.page_offset = page_offset;
+ ioctl->params.request.num_pages = num_pages;
+
+ /* Create a page list for the IOCTL. */
+ ASSERT(sa_sgl_get_page_count(sgl) >=
+ ioctl->params.request.num_pages);
+ be_sgl_to_pa_list(sgl, ioctl->params.request.buffer_addr,
+ SA_NUMBER_OF(ioctl->params.request.buffer_addr));
+ /* Post the Ioctl */
+ status = be_function_post_mcc_wrb(function_object, wrb, NULL,
+ NULL, ioctl);
+
+ if (status != 0) {
+ TRACE(DL_ERR, "manage FAT log ioctl failed.");
+ goto error;
+ }
+
+ if (NULL != log_size) {
+ *log_size = ioctl->params.response.log_size;
+ }
+
+ if (NULL != bytes_transferred) {
+ *bytes_transferred =
+ ioctl->params.response.bytes_transferred;
+ }
+
+ error:
+ be_unlock_wrb_post(function_object);
+
+ return status;
+}
+
+/*
+ *----------------------------------------------------------------------------
+ * Function: be_function_query_firmware_config
+ * Queries the firmware configuration currently loaded. This
+ * configuration includes information regarding the EP processor
+ * configuration for various Upper Layer Protocols.
+ * function_object -
+ * config - The configuration parameters currently loaded by firmware.
+ * return status - BE_SUCCESS (0) on success. Negative error code on failure.
+ *--------------------------------------------------------------------------
+ */
+BESTATUS
+be_function_query_firmware_config(IN PBE_FUNCTION_OBJECT function_object,
+ OUT BE_FIRMWARE_CONFIG *config)
+{
+ FUNCTION_ASSERT(function_object);
+ ASSERT(config);
+
+ /* Copy the cached version. */
+ sa_memcpy(config, &function_object->fw_config, sizeof(*config));
+
+ return BE_SUCCESS;
+}
+
+BESTATUS
+be_function_internal_query_firmware_config(IN PBE_FUNCTION_OBJECT
+ function_object,
+ OUT BE_FIRMWARE_CONFIG *config)
+{
+ IOCTL_COMMON_FIRMWARE_CONFIG *ioctl = NULL;
+ MCC_WRB *wrb = NULL;
+ BESTATUS status = 0;
+
+ be_lock_wrb_post(function_object);
+
+ wrb = be_function_peek_mcc_wrb(function_object);
+ if (!wrb) {
+ TRACE(DL_ERR, "MCC wrb peek failed.");
+ status = BE_STATUS_NO_MCC_WRB;
+ goto error;
+ }
+ /* Prepares an embedded ioctl, including request/response sizes. */
+ ioctl =
+ BE_FUNCTION_PREPARE_EMBEDDED_IOCTL(function_object, wrb,
+ COMMON_FIRMWARE_CONFIG);
+
+ /* Post the Ioctl */
+ status = be_function_post_mcc_wrb_with_copy(function_object, wrb,
+ NULL, NULL, NULL, ioctl,
+ BE_CREATE_MCC_RESPONSE_COPY(
+ IOCTL_COMMON_FIRMWARE_CONFIG,
+ params.response, config));
+
+error:
+ be_unlock_wrb_post(function_object);
+
+ return status;
+}
+
+/*
+ *---------------------------------------------------------------------------
+ * Function: be_function_config_red
+ * This function configures global and/or ULP specific Random Early Drop (RED
+ * functionality.
+ * function_object -
+ * parameters - The RED parameters. Only parameters for the
+ * chutes owned by the current PCI function are applied.
+ * callback - Optional callback function.
+ * callback_context - Optional context for callback function.
+ * queue_context - Optional context for queueing the IOCTL.
+ * return pend_status - BE_SUCCESS (0) on success.
+ * BE_PENDING (postive value) if the IOCTL
+ * completion is pending. Negative error code on failure.
+ *---------------------------------------------------------------------------
+ */
+BESTATUS
+be_function_config_red(IN PBE_FUNCTION_OBJECT function_object,
+ IN PBE_RED_PARAMETERS parameters,
+ IN MCC_WRB_CQE_CALLBACK callback,
+ IN PVOID callback_context,
+ IN PBE_CONFIG_RED_QUEUE_CONTEXT queue_context)
+{
+ MCC_WRB *wrb = NULL;
+ BESTATUS status = 0;
+ PBE_GENERIC_QUEUE_CONTEXT generic_context = NULL;
+ IOCTL_COMMON_RED_CONFIG *ioctl = NULL;
+ u32 i;
+
+ be_lock_wrb_post(function_object);
+
+ wrb = be_function_peek_mcc_wrb(function_object);
+ if (!wrb) {
+ if (queue_context && callback) {
+ wrb = (MCC_WRB *) &queue_context->wrb_header;
+ generic_context = (PBE_GENERIC_QUEUE_CONTEXT)
+ queue_context;
+ generic_context->context.bytes = sizeof(*queue_context);
+ } else {
+ status = BE_STATUS_NO_MCC_WRB;
+ goto error;
+ }
+ }
+ /* Prepares an embedded ioctl, including request/response sizes. */
+ ioctl = BE_FUNCTION_PREPARE_EMBEDDED_IOCTL(function_object, wrb,
+ COMMON_RED_CONFIG);
+
+ for (i = 0; i < SA_NUMBER_OF(parameters->chute); i++) {
+ sa_memcpy(&ioctl->params.request.chute[i],
+ ¶meters->chute[i],
+ sizeof(parameters->chute[0]));
+ }
+
+ /* Post the Ioctl */
+ status =
+ be_function_post_mcc_wrb_with_queue_context(function_object,
+ wrb,
+ generic_context,
+ callback,
+ callback_context,
+ ioctl);
+
+ error:
+ be_unlock_wrb_post(function_object);
+
+ return status;
+}
+
+/*
+ *----------------------------------------------------------------------------
+ * Function: be_function_config_port_equalization
+ * This function configures or returns the XAUI port equalization
+ * parameters of BladeEngine.
+ * function_object -
+ * parameters - XAUI port equalization parameters.
+ * write - Set (1) to write the parameters, otherwise
+ * clear (0) to read the parameters.
+ * callback - Optional callback function.
+ * callback_context - Optional context for callback function.
+ * queue_context - Optional context for queueing the IOCTL.
+ * return pend_status - BE_SUCCESS (0) on success.
+ * BE_PENDING (postive value) if the IOCTL
+ * completion is pending. Negative error code on failure.
+ *---------------------------------------------------------------------------
+ */
+BESTATUS
+be_function_config_port_equalization(IN PBE_FUNCTION_OBJECT
+ function_object,
+ IN OUT
+ PIOCTL_COMMON_PORT_EQUALIZATION_PARAMS
+ parameters, IN boolean write,
+ IN MCC_WRB_CQE_CALLBACK callback,
+ IN PVOID callback_context,
+ IN
+ PBE_CONFIG_PORT_EQUALIXATION_QUEUE_CONTEXT
+ queue_context)
+{
+ MCC_WRB *wrb = NULL;
+ BESTATUS status = 0;
+ PBE_GENERIC_QUEUE_CONTEXT generic_context = NULL;
+
+ be_lock_wrb_post(function_object);
+
+ wrb = be_function_peek_mcc_wrb(function_object);
+ if (!wrb) {
+ if (queue_context && callback) {
+ wrb = (MCC_WRB *) &queue_context->wrb_header;
+ generic_context = (PBE_GENERIC_QUEUE_CONTEXT)
+ queue_context;
+ generic_context->context.bytes =
+ sizeof(*queue_context);
+ } else {
+ status = BE_STATUS_NO_MCC_WRB;
+ goto error;
+ }
+ }
+
+ if (write) {
+ IOCTL_COMMON_SET_PORT_EQUALIZATION *ioctl;
+
+ /*
+ * Prepare an embedded ioctl, including request/response
+ * sizes.
+ */
+ ioctl = BE_FUNCTION_PREPARE_EMBEDDED_IOCTL(function_object, wrb,
+ COMMON_SET_PORT_EQUALIZATION);
+
+ sa_memcpy(&ioctl->params.request,
+ parameters, sizeof(*parameters));
+
+ /* Post the Ioctl */
+ status = be_function_post_mcc_wrb_with_queue_context(
+ function_object,
+ wrb, generic_context, callback,
+ callback_context, ioctl);
+ } else {
+ IOCTL_COMMON_GET_PORT_EQUALIZATION *ioctl;
+
+ /*
+ * Prepare an embedded ioctl, including
+ * request/response sizes.
+ */
+ ioctl = BE_FUNCTION_PREPARE_EMBEDDED_IOCTL(function_object,
+ wrb, COMMON_GET_PORT_EQUALIZATION);
+
+ /* This IOCTL response is copied into the parameters pointer */
+ status = be_function_post_mcc_wrb_with_copy(function_object,
+ wrb, generic_context, callback,
+ callback_context, ioctl,
+ BE_CREATE_MCC_RESPONSE_COPY(
+ IOCTL_COMMON_GET_PORT_EQUALIZATION,
+ params.
+ response,
+ parameters));
+ }
+
+error:
+ be_unlock_wrb_post(function_object);
+
+ return status;
+}
+
+/*
+ *------------------------------------------------------------------------
+ * Function: be_function_passthru_ioctl
+ * This routine issues an embedded IOCTL in pass-through mode.
+ * function_object -
+ * payload - The embedded payload for the MCC_WRB structure.
+ * The input buffer is overwritten with response data.
+ * callback - Callback function invoked when the IOCTL completes.
+ * callback_context - Callback context passed to the callback function.
+ * return status - BE_SUCCESS (0) on success. Negative error code on failure.
+ *----------------------------------------------------------------------------
+ */
+BESTATUS
+be_function_passthru_ioctl(IN PBE_FUNCTION_OBJECT function_object,
+ IN OUT MCC_WRB_PAYLOAD *payload,
+ IN MCC_WRB_CQE_CALLBACK callback,
+ IN PVOID callback_context)
+{
+ MCC_WRB *wrb = NULL;
+ BESTATUS status = 0;
+ PVOID ioctl = NULL;
+ PIOCTL_REQUEST_HEADER ioctl_header =
+ (PIOCTL_REQUEST_HEADER) payload;
+
+ be_lock_wrb_post(function_object);
+
+ wrb = be_function_peek_mcc_wrb(function_object);
+ if (!wrb) {
+ TRACE(DL_ERR, "MCC wrb peek failed.");
+ status = BE_STATUS_NO_MCC_WRB;
+ goto error;
+ }
+ /* Prepares an embedded ioctl */
+ ioctl = be_function_prepare_embedded_ioctl(function_object,
+ wrb,
+ sizeof(MCC_WRB_PAYLOAD),
+ ioctl_header->
+ request_length,
+ ioctl_header->
+ request_length,
+ ioctl_header->opcode,
+ ioctl_header->
+ subsystem);
+
+ /* Copy in the user's IOCTL payload */
+ sa_memcpy((void *)&wrb->payload,
+ (void *)payload, sizeof(MCC_WRB_PAYLOAD));
+
+ /* Post the Ioctl */
+ status = be_function_post_mcc_wrb_with_copy(function_object,
+ wrb, NULL, callback, callback_context,
+ ioctl, be_create_mcc_response_copy(0,
+ sizeof (MCC_WRB_PAYLOAD), payload));
+
+error:
+ be_unlock_wrb_post(function_object);
+
+ return status;
+}
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