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Date: Thu, 05 Jun 2008 09:40:20 -0700
From: "Subbu Seetharaman" <subbus@...verengines.com>
To: netdev@...r.kernel.org
Subject: [PATCH 6/12] BE NIC driver - beclib functions
Signed-off-by: Subbu Seetharaman <subbus@...verengines.com>
---
drivers/message/beclib/chipobj_ll.c | 106 +++
drivers/message/beclib/funcobj_ll.c | 1260 +++++++++++++++++++++++++++++++++++
drivers/message/beclib/main_ll.c | 37 +
3 files changed, 1403 insertions(+), 0 deletions(-)
create mode 100644 drivers/message/beclib/chipobj_ll.c
create mode 100644 drivers/message/beclib/funcobj_ll.c
create mode 100644 drivers/message/beclib/main_ll.c
diff --git a/drivers/message/beclib/chipobj_ll.c b/drivers/message/beclib/chipobj_ll.c
new file mode 100644
index 0000000..f2b3e51
--- /dev/null
+++ b/drivers/message/beclib/chipobj_ll.c
@@ -0,0 +1,106 @@
+/*
+ * 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@...verengines.com
+ *
+ * ServerEngines
+ * 209 N. Fair Oaks Ave
+ * Sunnyvale, CA 94085
+ */
+#include "pch.h"
+
+BESTATUS be_chip_create(struct be_chip_object *chip)
+{
+ BESTATUS status = BE_SUCCESS;
+
+ ASSERT(chip);
+ memset(chip, 0, sizeof(*chip));
+
+ TRACE(DL_INFO, "Create chip object. object:0x%p", chip);
+
+ atomic_set(&chip->ref_count, 0);
+
+ INIT_LIST_HEAD(&chip->function_list_head);
+
+ spin_lock_init(&chip->lock.lock);
+
+ return status;
+}
+
+void be_chip_destroy(struct be_chip_object *chip)
+{
+ ASSERT(chip->ref_count == 0);
+
+ memset(chip, 0, sizeof(*chip));
+ TRACE(DL_INFO, "destroying chip %p", chip);
+}
+
+BESTATUS
+be_chip_insert_function_object(struct be_chip_object *chip_object,
+ struct be_function_object *pfob)
+{
+ TRACE(DL_INFO, "Insert function into chip object.");
+
+ ASSERT(pfob->parent_chip == NULL ||
+ pfob->parent_chip == chip_object);
+ pfob->parent_chip = chip_object;
+
+ be_chip_lock(chip_object);
+
+ atomic_inc(&chip_object->ref_count);
+ list_add_tail(&pfob->function_list, &chip_object->function_list_head);
+
+ be_chip_unlock(chip_object);
+
+ return BE_SUCCESS;
+}
+
+void
+be_chip_remove_function_object(struct be_chip_object *chip_object,
+ struct be_function_object *pfob)
+{
+ pfob->parent_chip = NULL;
+
+ be_chip_lock(chip_object);
+
+ ASSERT(atomic_read(&chip_object->ref_count) > 0);
+ ASSERT(!list_empty(&chip_object->function_list_head));
+
+ atomic_dec(&chip_object->ref_count);
+ list_del(&pfob->function_list);
+
+ be_chip_unlock(chip_object);
+}
+
+/*
+ This routine serializes access to resources maintained
+ through a chip object.
+
+ ChipObject - The chip object to acquire the lock for.
+
+ IRQL < DISPATCH_LEVEL
+
+*/
+void be_chip_lock(struct be_chip_object *chip_object)
+{
+ spin_lock_irqsave(&chip_object->lock.lock, chip_object->lock.irql);
+}
+
+/*
+ This routine removes serialization done by ChipObjectLock.
+
+ ChipObject - The chip object to drop the lock for.
+
+ IRQL < DISPATCH_LEVEL
+*/
+void be_chip_unlock(struct be_chip_object *chip_object)
+{
+ spin_unlock_irqrestore(&chip_object->lock.lock, chip_object->lock.irql);
+}
diff --git a/drivers/message/beclib/funcobj_ll.c b/drivers/message/beclib/funcobj_ll.c
new file mode 100644
index 0000000..c415316
--- /dev/null
+++ b/drivers/message/beclib/funcobj_ll.c
@@ -0,0 +1,1260 @@
+/*
+ * 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@...verengines.com
+ *
+ * ServerEngines
+ * 209 N. Fair Oaks Ave
+ * Sunnyvale, CA 94085
+ */
+#include "pch.h"
+
+
+/*
+ This allocates and initializes a function object based on the information
+ provided by upper layer drivers.
+
+ sa_dev - pointer to a device object
+ function_type - networking or srorage function
+ mailbox - pointer to a memory region for use as mailbox
+ pfob - pointer to a memory region where function object is
+ initilized.
+
+ Returns BE_SUCCESS on success and an appropriate BESTATUS on failure.
+
+ 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(struct sa_dev *sa_dev,
+ u32 function_type, struct sa_sgl *mailbox,
+ struct be_function_object *pfob)
+{
+ BESTATUS status;
+
+ ASSERT(sa_dev);
+ ASSERT(pfob); /* 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, pfob);
+
+ memset(pfob, 0, sizeof(*pfob));
+
+ atomic_set(&pfob->ref_count, 0);
+ pfob->type = function_type;
+ pfob->sa_dev = sa_dev;
+
+ spin_lock_init(&pfob->lock.lock);
+
+ spin_lock_init(&pfob->cq_lock);
+ spin_lock_init(&pfob->post_lock);
+ spin_lock_init(&pfob->mcc_context_lock);
+
+ INIT_LIST_HEAD(&pfob->links.pd_list_head);
+ INIT_LIST_HEAD(&pfob->links.cq_list_head);
+ INIT_LIST_HEAD(&pfob->links.eq_list_head);
+ INIT_LIST_HEAD(&pfob->links.cxn_list_head);
+ INIT_LIST_HEAD(&pfob->links.eth_sq_list_head);
+ INIT_LIST_HEAD(&pfob->links.eth_rq_list_head);
+
+ if (be_function_is_iscsi(pfob)) {
+ INIT_LIST_HEAD(&pfob->links.iscsi.wrbq_list_head);
+ INIT_LIST_HEAD(&pfob->links.iscsi.defq_list_head);
+
+ pfob->pci_function_number = 0;
+ } else {
+
+ INIT_LIST_HEAD(&pfob->links.networking.dq_list_head);
+ INIT_LIST_HEAD(&pfob->links.networking.sq_list_head);
+ INIT_LIST_HEAD(&pfob->links.networking.rq_list_head);
+ pfob->pci_function_number = 1;
+ }
+
+ pfob->config.rss_type = RSS_ENABLE_NONE;
+
+ 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 beclib 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.
+*/
+BESTATUS be_function_destroy(struct be_function_object *pfob)
+{
+ TRACE(DL_INFO, "Destroy pfob. Object:0x%p",
+ pfob);
+
+ if (be_function_is_iscsi(pfob)) {
+ ASSERT(list_empty(&pfob->links.cxn_list_head));
+ ASSERT(list_empty(&pfob->links.iscsi.wrbq_list_head));
+ ASSERT(list_empty(&pfob->links.iscsi.defq_list_head));
+ ASSERT(pfob->config.num_ooo == 0);
+ ASSERT(pfob->config.num_sgl == 0);
+ } else {
+ ASSERT(be_function_is_networking(pfob));
+ ASSERT(list_empty(&pfob->links.cxn_list_head));
+ ASSERT(list_empty(&pfob->links.networking.sq_list_head));
+ ASSERT(list_empty(&pfob->links.networking.rq_list_head));
+ ASSERT(list_empty(&pfob->links.networking.dq_list_head));
+ ASSERT(pfob->config.num_multicast == 0);
+ ASSERT(pfob->config.rss_type ==
+ RSS_ENABLE_NONE);
+ }
+
+ ASSERT(pfob->config.num_template == 0);
+ ASSERT(pfob->config.num_jell == 0);
+ ASSERT(pfob->config.num_zero == 0);
+ ASSERT(list_empty(&pfob->links.eth_sq_list_head));
+ ASSERT(list_empty(&pfob->links.eth_rq_list_head));
+ ASSERT(pfob->config.num_vlan == 0);
+ ASSERT(pfob->links.mcc == NULL);
+ ASSERT(list_empty(&pfob->links.cq_list_head));
+ ASSERT(list_empty(&pfob->links.eq_list_head));
+ ASSERT(pfob->config.num_page_table == 0);
+
+ return BE_SUCCESS;
+}
+
+/* Create chip object. */
+BESTATUS be_chip_object_create(struct be_chip_object *chip)
+{
+ BESTATUS status = 0;
+ bool 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(struct sa_dev *sa_dev,
+ u32 function_type, /* e.g FUNCTION_TYPE_ISCSI */
+ struct sa_sgl *mailbox_sgl, struct be_function_object *pfob,
+ struct be_chip_object *chip) /* object to initialize */
+{
+ BESTATUS status = 0;
+ bool function_created = FALSE;
+
+ status = be_function_create(sa_dev, function_type, mailbox_sgl, pfob);
+ if (status != BE_SUCCESS)
+ goto Error;
+
+ function_created = TRUE;
+
+ status = be_chip_insert_function_object(chip, pfob);
+
+Error:
+ if (status != BE_SUCCESS) {
+ /* Cleanup everything in case of failure. */
+ if (function_created)
+ be_function_destroy(pfob);
+ }
+
+ 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(
+ struct sa_dev *sa_dev, /* previously created device */
+ u32 function_type, /* e.g FUNCTION_TYPE_ISCSI */
+ struct sa_sgl *mailbox_sgl, struct sa_sgl *emulation_sgl,
+ struct be_function_object *pfob, struct be_chip_object *chip)
+{
+ BESTATUS status = 0;
+ bool function_created = FALSE, chip_created = FALSE;
+
+ status = be_function_create(sa_dev, function_type, mailbox_sgl, pfob);
+ 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, pfob);
+
+Error:
+ if (status != BE_SUCCESS) {
+
+ /* Cleanup everything in case of failure. */
+
+ if (chip_created)
+ be_chip_destroy(chip);
+
+ if (function_created)
+ be_function_destroy(pfob);
+ }
+
+ return status;
+}
+
+BESTATUS
+be_function_and_chip_destroy(struct be_function_object *pfob,
+ struct be_chip_object *chip)
+{
+ TRACE(DL_INFO, "Destroy function & chip.");
+
+ be_chip_remove_function_object(chip, pfob);
+
+ be_chip_destroy(chip);
+
+ be_function_destroy(pfob);
+
+ return BE_SUCCESS;
+}
+
+BESTATUS
+be_function_object_destroy(struct be_function_object *pfob,
+ struct be_chip_object *chip)
+{
+ TRACE(DL_INFO, "Destroy function & chip.");
+
+ (void)be_mpu_uninit_mailbox(pfob);
+
+ be_chip_remove_function_object(chip, pfob);
+
+ be_function_destroy(pfob);
+
+ return BE_SUCCESS;
+}
+
+BESTATUS be_chip_object_destroy(struct be_chip_object *chip)
+{
+ TRACE(DL_INFO, "Destroy function & chip.");
+
+ be_chip_destroy(chip);
+
+ return BE_SUCCESS;
+}
+
+BESTATUS be_function_cleanup(struct be_function_object *pfob)
+{
+ BESTATUS status = 0;
+ struct be_cq_object *cq = NULL;
+ struct be_eq_object *eq = NULL;
+#ifdef FUNCTION_NIC
+ struct be_ethsq_object *eth_sq = NULL;
+ struct be_ethrq_object *eth_rq = NULL;
+#endif
+ u32 isr;
+ u32 host_intr;
+ struct PCICFG_HOST_TIMER_INT_CTRL_CSR_AMAP ctrl;
+
+ TRACE(DL_INFO, "function cleanup. function:%d",
+ be_function_get_function_number(pfob));
+
+
+#ifdef FUNCTION_NIC
+
+ if (!be_function_is_iscsi(pfob)) {
+
+ /* Multicast */
+ if (pfob->config.num_multicast > 0) {
+ status = be_rxf_multicast_config(pfob, FALSE,
+ 0, NULL, NULL, NULL, NULL);
+ ASSERT(status == BE_SUCCESS);
+ }
+ }
+#endif
+
+#ifdef FUNCTION_NIC
+ /* ETX */
+ while (!list_empty(&pfob->links.eth_sq_list_head)) {
+ eth_sq = list_first_entry(&pfob->links.eth_sq_list_head,
+ struct be_ethsq_object, list);
+
+ status = be_eth_sq_destroy(eth_sq);
+ ASSERT(status == BE_SUCCESS);
+ }
+
+ /* ERX */
+ while (!list_empty(&pfob->links.eth_rq_list_head)) {
+
+ eth_rq = list_first_entry(&pfob->links.eth_rq_list_head,
+ struct be_ethrq_object, list);
+
+ status = be_eth_rq_destroy(eth_rq);
+ ASSERT(status == BE_SUCCESS);
+ }
+
+ /* VLAN */
+ if (pfob->config.num_vlan > 0) {
+ status = be_rxf_vlan_config(pfob, 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 (pfob->links.mcc)
+ status = be_mcc_ring_destroy(pfob->links.mcc);
+ /* CQs */
+ while (!list_empty(&pfob->links.cq_list_head)) {
+ cq = list_first_entry(&pfob->links.cq_list_head,
+ struct be_cq_object, cq_list);
+
+ status = be_cq_destroy(cq);
+ ASSERT(status == BE_SUCCESS);
+ }
+
+ /* EQs */
+ while (!list_empty(&pfob->links.eq_list_head)) {
+ eq = list_first_entry(&pfob->links.eq_list_head,
+ struct 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[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 (be_function_is_networking(pfob))
+ isr = CSR_READ(pfob, cev.isr1);
+ else
+ isr = CSR_READ(pfob, cev.isr0);
+ else
+ /* This should never happen... */
+ TRACE(DL_ERR,
+ "Calling function_cleanup with interrupts enabled.");
+
+ /* Function object destroy */
+ status = be_function_object_destroy(pfob, pfob->parent_chip);
+ ASSERT(status == BE_SUCCESS);
+
+ return status;
+}
+
+/*
+ This routine adds a event queue object to a function object to allow
+ for correct tracking and reference counting.
+
+ pfob - Function object to add the object to.
+
+ eq_object - Event queue object to add.
+
+ IRQL < DISPATCH_LEVEL
+
+*/
+void
+_be_function_add_eq(struct be_function_object *pfob,
+ struct be_eq_object *eq_object)
+{
+ _be_function_lock(pfob);
+
+ atomic_inc(&pfob->ref_count);
+ list_add_tail(&eq_object->eq_list, &pfob->links.eq_list_head);
+
+ _be_function_unlock(pfob);
+}
+
+/*
+ This routine removes a event queue object from a function object and
+ drops the reference count for the given function object.
+
+ pfob - Function object to remove the object from.
+
+ eq_object - Event queue object to remove.
+
+*/
+void
+_be_function_remove_eq(struct be_function_object *pfob,
+ struct be_eq_object *eq_object)
+{
+ _be_function_lock(pfob);
+
+ list_del(&eq_object->eq_list);
+ atomic_dec(&pfob->ref_count);
+
+ _be_function_unlock(pfob);
+}
+
+/*
+ This routine adds a completion queue object to a function object to allow
+ for correct tracking and reference counting.
+
+ pfob - Function object to add the object to.
+
+ cq_object - Completion queue object to add.
+
+ IRQL < DISPATCH_LEVEL
+
+*/
+void
+_be_function_add_cq(struct be_function_object *pfob,
+ struct be_cq_object *cq_object)
+{
+ _be_function_lock(pfob);
+
+ atomic_inc(&pfob->ref_count);
+ list_add_tail(&cq_object->cq_list, &pfob->links.cq_list_head);
+
+ _be_function_unlock(pfob);
+}
+
+/*
+ This routine removes a completion queue object from a function object and
+ drops the reference count for the given function object.
+
+ pfob - Function object to remove the object from.
+
+ cq_object - Completion queue object to remove.
+
+ IRQL < DISPATCH_LEVEL
+
+*/
+void
+_be_function_remove_cq(struct be_function_object *pfob,
+ struct be_cq_object *cq_object)
+{
+ _be_function_lock(pfob);
+
+ list_del(&cq_object->cq_list);
+ atomic_dec(&pfob->ref_count);
+
+ _be_function_unlock(pfob);
+}
+
+/*
+ This routine adds an Ethernet Send queue object to a function
+ object to allow for correct tracking and reference counting.
+
+ func_obj - function object to add the object to.
+
+ eth_sq - ethernet send queue object to add.
+
+ IRQL < DISPATCH_LEVEL
+
+*/
+void
+_be_function_add_eth_sq(struct be_function_object *pfob,
+ struct be_ethsq_object *eth_sq)
+{
+ _be_function_lock(pfob);
+
+ atomic_inc(&pfob->ref_count);
+ list_add_tail(ð_sq->list, &pfob->links.eth_sq_list_head);
+
+ _be_function_unlock(pfob);
+
+}
+
+/*
+ This routine removes an Ethernet Send Queue object from a function object
+ and drops the reference count for the given function object.
+
+ pfob - Function object to remove the object from.
+
+ EthSq - Ethernet Send Queue object to remove.
+
+ IRQL < DISPATCH_LEVEL
+
+*/
+void
+_be_function_remove_eth_sq(struct be_function_object *pfob,
+ struct be_ethsq_object *eth_sq)
+{
+ _be_function_lock(pfob);
+
+ list_del(ð_sq->list);
+ atomic_dec(&pfob->ref_count);
+
+ _be_function_unlock(pfob);
+}
+
+/*
+ This routine adds an ethernet receive queue object to a
+ function object to allow for correct tracking and reference counting.
+
+ pfob - Function object to add the object to.
+
+ EthRq - Ethernet Receive Queue object to add.
+
+ 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.
+
+ IRQL < DISPATCH_LEVEL
+*/
+void
+_be_function_add_eth_rq(struct be_function_object *pfob,
+ struct be_ethrq_object *eth_rq)
+{
+ _be_function_lock(pfob);
+
+ atomic_inc(&pfob->ref_count);
+ list_add_tail(ð_rq->list, &pfob->links.eth_rq_list_head);
+
+ _be_function_unlock(pfob);
+}
+
+/*
+ This routine removes an Ethernet receive queue object from a function object
+ and drops the reference count for the given function object.
+
+ pfob - Function object to remove the object from.
+
+ EthRq - Ethernet receive queue object to remove.
+
+ RssIndex - Rss Index for the EthRq to remove.
+
+ IRQL < DISPATCH_LEVEL
+
+*/
+void
+_be_function_remove_eth_rq(struct be_function_object *pfob,
+ struct be_ethrq_object *eth_rq)
+{
+ _be_function_lock(pfob);
+
+ list_del(ð_rq->list);
+ atomic_dec(&pfob->ref_count);
+
+ _be_function_unlock(pfob);
+
+}
+
+/*
+ This routine adds a Mcc Send queue object to a function object to allow
+ for correct tracking and reference counting.
+
+ pfob - Function object to add the object to.
+
+ mcc - Mcc Send Queue object to add.
+
+*/
+void
+_be_function_add_mcc(struct be_function_object *pfob,
+ struct be_mcc_object *mcc)
+{
+ ASSERT(pfob->links.mcc == NULL);
+
+ _be_function_lock(pfob);
+
+ atomic_inc(&pfob->ref_count);
+ pfob->links.mcc = mcc;
+
+ _be_function_unlock(pfob);
+}
+
+/*
+ This routine removes an MCC Send Queue object from a function object and
+ drops the reference count for the given function object.
+
+ pfob - Function object to remove the object from.
+
+ mcc - Mcc Send Queue object to remove.
+
+*/
+void
+_be_function_remove_mcc(struct be_function_object *pfob,
+ struct be_mcc_object *mcc)
+{
+ _be_function_lock(pfob);
+
+ pfob->links.mcc = NULL;
+ atomic_dec(&pfob->ref_count);
+
+ _be_function_unlock(pfob);
+}
+
+
+void *
+be_function_prepare_embedded_fwcmd(struct be_function_object *pfob,
+ struct MCC_WRB_AMAP *wrb, u32 payload_length, u32 request_length,
+ u32 response_length, u32 opcode, u32 subsystem)
+{
+ struct FWCMD_REQUEST_HEADER *header = NULL;
+ u32 n;
+
+ ASSERT(wrb);
+
+ n = AMAP_BYTE_OFFSET(MCC_WRB, payload);
+ AMAP_SET_BITS_PTR(MCC_WRB, embedded, wrb, 1);
+ AMAP_SET_BITS_PTR(MCC_WRB, payload_length, wrb,
+ min(payload_length, n));
+ header = (struct FWCMD_REQUEST_HEADER *)((u8 *)wrb + n);
+
+ header->timeout = 0;
+ header->domain = be_function_get_pd_number(pfob);
+ 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 payload_length,
+ 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, 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.
+ */
+ AMAP_SET_BITS_PTR(MCC_WRB, sge_count, wrb, 1);
+
+ n = AMAP_BYTE_OFFSET(MCC_WRB, payload);
+ plp = (struct MCC_WRB_PAYLOAD_AMAP *)((u8 *)wrb + n);
+ AMAP_SET_BITS_PTR_UNION(MCC_WRB_PAYLOAD, sgl[0].length, plp,
+ payload_length);
+ AMAP_SET_BITS_PTR_UNION(MCC_WRB_PAYLOAD, sgl[0].pa_lo, plp,
+ sa_lo(fwcmd_pa));
+ AMAP_SET_BITS_PTR_UNION(MCC_WRB_PAYLOAD, sgl[0].pa_hi, plp,
+ sa_hi(fwcmd_pa));
+
+ header->timeout = 0;
+ header->domain = be_function_get_pd_number(pfob);
+ 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->links.mcc)
+ wrb = _be_mpu_peek_ring_wrb(pfob->links.mcc, FALSE);
+ else {
+ offset = AMAP_BYTE_OFFSET(MCC_MAILBOX, wrb);
+ wrb = (struct MCC_WRB_AMAP *) ((u8 *) pfob->mailbox.va +
+ offset);
+ }
+
+ if (wrb)
+ memset(wrb, 0, sizeof(struct MCC_WRB_AMAP));
+
+ return wrb;
+}
+
+/*
+ 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.
+
+ pfob - function object to add the object to.
+ 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.
+ callback - address of a callback routine to invoke once the WRB
+ is completed.
+ callback_context - opaque context to be passed during the call to
+ the callback.
+ Returns BE_SUCCESS if successfull, otherwise a useful error code
+ is returned.
+*/
+BESTATUS
+be_function_post_mcc_wrb(struct be_function_object *pfob,
+ struct MCC_WRB_AMAP *wrb, MCC_WRB_CQE_CALLBACK callback,
+ void *callback_context, void *optional_fwcmd_va)
+{
+ struct be_mcc_wrb_response_copy response_copy = { 0 };
+ return be_function_post_mcc_wrb_complete(pfob, wrb, NULL,
+ callback, callback_context, NULL, NULL,
+ optional_fwcmd_va, response_copy);
+}
+
+BESTATUS
+be_function_post_mcc_wrb_with_queue_context(struct be_function_object *pfob,
+ struct MCC_WRB_AMAP *wrb,
+ struct be_generic_queue_context *queue_context,
+ MCC_WRB_CQE_CALLBACK callback, void *callback_context,
+ void *optional_fwcmd_va)
+{
+ struct be_mcc_wrb_response_copy response_copy = { 0 };
+ return be_function_post_mcc_wrb_complete(pfob, wrb, queue_context,
+ callback, callback_context, NULL,
+ NULL, optional_fwcmd_va, response_copy);
+}
+
+BESTATUS
+be_function_post_mcc_wrb_with_copy(struct be_function_object *pfob,
+ struct MCC_WRB_AMAP *wrb,
+ struct be_generic_queue_context *queue_context,
+ MCC_WRB_CQE_CALLBACK callback,
+ void *callback_context, void *optional_fwcmd_va,
+ struct be_mcc_wrb_response_copy response_copy)
+{
+ return be_function_post_mcc_wrb_complete(pfob,
+ wrb, queue_context, callback, callback_context, NULL,
+ NULL, optional_fwcmd_va, response_copy);
+}
+
+BESTATUS
+be_function_post_mcc_wrb_with_internal_callback(
+ struct be_function_object *pfob,
+ struct MCC_WRB_AMAP *wrb,
+ struct be_generic_queue_context *queue_context,
+ MCC_WRB_CQE_CALLBACK callback,
+ void *callback_context,
+ MCC_WRB_CQE_CALLBACK internal_callback,
+ void *internal_callback_context,
+ void *optional_fwcmd_va)
+{
+ struct be_mcc_wrb_response_copy response_copy = { 0 };
+ return be_function_post_mcc_wrb_complete(pfob, wrb,
+ queue_context, callback, callback_context,
+ internal_callback, internal_callback_context,
+ optional_fwcmd_va, response_copy);
+}
+
+#if defined(SA_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 = AMAP_BYTE_OFFSET(MCC_WRB, payload);
+ 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. */
+ wrb_context->consumed_count = pfob->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_FWCMD,
+ "Post FWCMD. 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(struct be_function_object *pfob,
+ struct MCC_WRB_AMAP *wrb,
+ struct be_generic_queue_context *queue_context,
+ MCC_WRB_CQE_CALLBACK callback,
+ void *callback_context,
+ MCC_WRB_CQE_CALLBACK internal_callback,
+ void *internal_callback_context, void *optional_fwcmd_va,
+ struct be_mcc_wrb_response_copy response_copy)
+{
+ BESTATUS status;
+ struct be_mcc_wrb_context *wrb_context = NULL;
+ u64 *p;
+
+ 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_fwcmd_va = optional_fwcmd_va;
+
+ /* Queue this request */
+ status = be_function_queue_mcc_wrb(pfob, 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(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_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.
+ */
+ p = (u64 *) ((u8 *)wrb + AMAP_BYTE_OFFSET(MCC_WRB, tag));
+ *p = SA_PTR_TO_U64(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->links.mcc) {
+ /*
+ * we're in WRB mode, pass to the mcc layer
+ */
+ status = _be_mpu_post_wrb_ring(pfob->links. 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;
+}
+
+void _be_function_lock(struct be_function_object *pfob)
+{
+ spin_lock_irqsave(&pfob->lock.lock, pfob->lock.irql);
+}
+
+void _be_function_unlock(struct be_function_object *pfob)
+{
+ spin_unlock_irqrestore(&pfob->lock.lock, pfob->lock.irql);
+}
+
+u32 be_function_get_function_number(struct be_function_object *pfob)
+{
+ return pfob->pci_function_number;
+}
+
+u32 be_function_get_function_type(struct be_function_object *pfob)
+{
+ return pfob->type;
+}
+
+u32 be_function_get_pd_number(struct be_function_object *pfob)
+{
+
+ /* only PD0 supported in Linux drivers */
+ return 0;
+}
+
+bool be_function_is_vm(struct be_function_object *pfob)
+{
+ return be_function_get_pd_number(pfob) > 0;
+}
+
+/*
+ References the given object. The object is guaranteed to remain active
+ until the reference count drops to zero.
+
+ cq_object - CQ handle returned from cq_object_create.
+
+ returns the current reference count on the object
+*/
+void _be_function_reference(struct be_function_object *pfob)
+{
+ atomic_inc(&pfob->ref_count);
+}
+
+/*
+ Dereferences the given object. The object is guaranteed to remain
+ active until the reference count drops to zero.
+
+ returns the current reference count on the object
+*/
+void _be_function_dereference(struct be_function_object *pfob)
+{
+ atomic_dec(&pfob->ref_count);
+}
+
+BESTATUS
+be_function_ring_destroy_async(struct be_function_object *pfob,
+ u32 id, u32 ring_type, MCC_WRB_CQE_CALLBACK callback,
+ void *callback_context,
+ MCC_WRB_CQE_CALLBACK internal_callback,
+ void *internal_callback_context)
+{
+
+ struct FWCMD_COMMON_RING_DESTROY *fwcmd = NULL;
+ struct MCC_WRB_AMAP *wrb = NULL;
+ BESTATUS status = 0;
+
+ be_lock_wrb_post(pfob);
+
+ 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 Ioctl */
+ status = be_function_post_mcc_wrb_with_internal_callback(pfob, wrb,
+ NULL, callback, callback_context, internal_callback,
+ internal_callback_context, fwcmd);
+ 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:
+ be_unlock_wrb_post(pfob);
+ return status;
+}
+
+BESTATUS
+be_function_ring_destroy(struct be_function_object *pfob, u32 id, u32 ring_type)
+{
+ return be_function_ring_destroy_async(pfob, id,
+ ring_type, NULL, NULL, NULL, NULL);
+}
+
+void
+be_sgl_to_pa_list(struct sa_sgl *sgl, struct PHYS_ADDR *pa_list, u32 max_num)
+{
+ u32 num_pages = sa_sgl_get_page_count(sgl);
+ u32 i = 0;
+ u64 pa = sgl->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 = sa_lo(lepa);
+ pa_list[i].hi = sa_hi(lepa);
+ pa += PAGE_SIZE;
+ }
+}
+
+
+
+/*
+ *---------------------------------------------------------------------------
+ * Function: be_function_enable_interrupts
+ * Enables interrupts for the given PCI function.
+ * pfob -
+ * return return_type - void
+ *----------------------------------------------------------------------------
+ */
+void be_function_enable_interrupts(struct be_function_object *pfob)
+{
+ struct be_eq_object *eq = NULL;
+ struct CQ_DB_AMAP cq_db;
+ u32 host_intr;
+ u32 isr;
+ struct PCICFG_HOST_TIMER_INT_CTRL_CSR_AMAP ctrl;
+
+ 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) {
+ /*
+ * 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(pfob))
+ isr = CSR_READ(pfob, cev.isr1);
+ else
+ isr = CSR_READ(pfob, cev.isr0);
+
+ /*
+ * Read-Modify-Write the control register
+ *
+ */
+ AMAP_SET_BITS_PTR(PCICFG_HOST_TIMER_INT_CTRL_CSR, hostintr,
+ ctrl.dw, 1);
+ PCICFG1_WRITE_CONST(pfob, host_timer_int_ctrl,
+ ctrl.dw[0]);
+ }
+
+ cq_db.dw[0] = 0; /* clear entire doorbell */
+ AMAP_SET_BITS_PTR(CQ_DB, event, &cq_db, 1);
+ AMAP_SET_BITS_PTR(CQ_DB, rearm, &cq_db, 1);
+ AMAP_SET_BITS_PTR(CQ_DB, num_popped, &cq_db, 0);
+
+ /* Lock the function object while walking the EQ list. */
+ _be_function_lock(pfob);
+
+ /* Rearm each EQ. */
+ list_for_each_entry(eq, &pfob->links.eq_list_head, eq_list) {
+ AMAP_SET_BITS_PTR(CQ_DB, qid, &cq_db, eq->eq_id);
+ PD_WRITE(pfob, cq_db, cq_db);
+ }
+
+ _be_function_unlock(pfob);
+}
+
+/*
+ *----------------------------------------------------------------------------
+ * Function: be_function_disable_interrupts
+ * Disables interrupts for the given PCI function.
+ * pfob -
+ * return return_type - void
+ *----------------------------------------------------------------------------
+ */
+void be_function_disable_interrupts(struct be_function_object *pfob)
+{
+ u32 host_intr;
+ struct PCICFG_HOST_TIMER_INT_CTRL_CSR_AMAP ctrl;
+
+ /*
+ * Read-Modify-Write of the control register in PCI config space.
+ */
+ 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) {
+ AMAP_SET_BITS_PTR(PCICFG_HOST_TIMER_INT_CTRL_CSR,
+ hostintr, ctrl.dw, 0);
+ PCICFG1_WRITE_CONST(pfob, host_timer_int_ctrl, ctrl.dw[0]);
+ }
+}
+
+
+/*-----------------------------------------------------------------------------
+ * 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.
+ * callback - Callback function invoked when the FWCMD completes.
+ * callback_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.
+ *---------------------------------------------------------------------------
+ */
+BESTATUS
+be_function_get_fw_version(struct be_function_object *pfob,
+ struct FWCMD_COMMON_GET_FW_VERSION_RESPONSE_PAYLOAD *fwv,
+ MCC_WRB_CQE_CALLBACK callback, void *callback_context)
+{
+ BESTATUS status = BE_SUCCESS;
+ struct MCC_WRB_AMAP *wrb = NULL;
+ struct FWCMD_COMMON_GET_FW_VERSION *fwcmd = NULL;
+
+ be_lock_wrb_post(pfob);
+
+ 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 (!callback && !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);
+
+ /* Post the Ioctl */
+ status = be_function_post_mcc_wrb_with_copy(pfob, wrb, NULL, callback,
+ callback_context, fwcmd,
+ BE_CREATE_MCC_RESPONSE_COPY(FWCMD_COMMON_GET_FW_VERSION,
+ params.response, fwv));
+
+Error:
+ be_unlock_wrb_post(pfob);
+
+ return status;
+}
+
+BESTATUS
+be_function_queue_mcc_wrb(struct be_function_object *pfob,
+ struct be_generic_queue_context *queue_context)
+{
+ BESTATUS status;
+
+ ASSERT(queue_context);
+
+ /*
+ * issue the WRB to the MPU as appropriate
+ */
+ if (pfob->links.mcc) {
+
+ /* We're in ring mode. Queue this item. */
+ pfob->links.mcc->backlog_length++;
+ list_add_tail(&queue_context->context.list,
+ &pfob->links.mcc->backlog);
+
+ pfob->stats.queued_wrbs++;
+ pfob->stats.queue_length = pfob->links.mcc->backlog_length;
+ pfob->stats.max_queue_length = max(pfob->stats.queue_length,
+ pfob->stats.max_queue_length);
+ status = BE_PENDING;
+
+ } else {
+ status = BE_NOT_OK;
+ }
+
+ return status;
+}
+
+
+BESTATUS
+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;
+ BESTATUS status = 0;
+
+ be_lock_wrb_post(pfob);
+
+ 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);
+
+ /* Post the Ioctl */
+ status = be_function_post_mcc_wrb_with_copy(pfob, wrb, NULL,
+ NULL, NULL, fwcmd,
+ BE_CREATE_MCC_RESPONSE_COPY(FWCMD_COMMON_FIRMWARE_CONFIG,
+ params.response, config));
+error:
+ be_unlock_wrb_post(pfob);
+
+ return status;
+}
+
diff --git a/drivers/message/beclib/main_ll.c b/drivers/message/beclib/main_ll.c
new file mode 100644
index 0000000..8202e7e
--- /dev/null
+++ b/drivers/message/beclib/main_ll.c
@@ -0,0 +1,37 @@
+/*
+ * 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@...verengines.com
+ *
+ * ServerEngines
+ * 209 N. Fair Oaks Ave
+ * Sunnyvale, CA 94085
+ */
+#include "pch.h"
+
+unsigned int trace_level;
+/*
+ System-invoked entry point for system DLL.
+ This routine gets called once per system instantiation, is
+ responsible for registering the the driver's entry points.
+ Initialization and configuration occur elsewhere.
+
+ Returns SA_SUCCESS if ok.
+
+ IRQL: PASSIVE_LEVEL
+*/
+BESTATUS be_initialize_library(void)
+{
+ SA_TRACE(DL_NOTE, "Built on " __DATE__ " " __TIME__);
+
+ sa_trace_set_debug_level_string(DL_HW, "hw");
+
+ return BE_SUCCESS;
+}
--
1.5.5
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