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Diffstat (limited to 'drivers/scsi/bfa/bfad_intr.c')
-rw-r--r--drivers/scsi/bfa/bfad_intr.c222
1 files changed, 0 insertions, 222 deletions
diff --git a/drivers/scsi/bfa/bfad_intr.c b/drivers/scsi/bfa/bfad_intr.c
deleted file mode 100644
index 56a351584f0c..000000000000
--- a/drivers/scsi/bfa/bfad_intr.c
+++ /dev/null
@@ -1,222 +0,0 @@
-/*
- * Copyright (c) 2005-2009 Brocade Communications Systems, Inc.
- * All rights reserved
- * www.brocade.com
- *
- * Linux driver for Brocade Fibre Channel Host Bus Adapter.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License (GPL) Version 2 as
- * published by the Free Software Foundation
- *
- * 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.
- */
-
-#include "bfad_drv.h"
-#include "bfad_trcmod.h"
-
-BFA_TRC_FILE(LDRV, INTR);
-
-/**
- * bfa_isr BFA driver interrupt functions
- */
-static int msix_disable_cb;
-static int msix_disable_ct;
-module_param(msix_disable_cb, int, S_IRUGO | S_IWUSR);
-MODULE_PARM_DESC(msix_disable_cb, "Disable MSIX for Brocade-415/425/815/825"
- " cards, default=0, Range[false:0|true:1]");
-module_param(msix_disable_ct, int, S_IRUGO | S_IWUSR);
-MODULE_PARM_DESC(msix_disable_ct, "Disable MSIX for Brocade-1010/1020/804"
- " cards, default=0, Range[false:0|true:1]");
-/**
- * Line based interrupt handler.
- */
-static irqreturn_t
-bfad_intx(int irq, void *dev_id)
-{
- struct bfad_s *bfad = dev_id;
- struct list_head doneq;
- unsigned long flags;
- bfa_boolean_t rc;
-
- spin_lock_irqsave(&bfad->bfad_lock, flags);
- rc = bfa_intx(&bfad->bfa);
- if (!rc) {
- spin_unlock_irqrestore(&bfad->bfad_lock, flags);
- return IRQ_NONE;
- }
-
- bfa_comp_deq(&bfad->bfa, &doneq);
- spin_unlock_irqrestore(&bfad->bfad_lock, flags);
-
- if (!list_empty(&doneq)) {
- bfa_comp_process(&bfad->bfa, &doneq);
-
- spin_lock_irqsave(&bfad->bfad_lock, flags);
- bfa_comp_free(&bfad->bfa, &doneq);
- spin_unlock_irqrestore(&bfad->bfad_lock, flags);
- bfa_trc_fp(bfad, irq);
- }
-
- return IRQ_HANDLED;
-
-}
-
-static irqreturn_t
-bfad_msix(int irq, void *dev_id)
-{
- struct bfad_msix_s *vec = dev_id;
- struct bfad_s *bfad = vec->bfad;
- struct list_head doneq;
- unsigned long flags;
-
- spin_lock_irqsave(&bfad->bfad_lock, flags);
-
- bfa_msix(&bfad->bfa, vec->msix.entry);
- bfa_comp_deq(&bfad->bfa, &doneq);
- spin_unlock_irqrestore(&bfad->bfad_lock, flags);
-
- if (!list_empty(&doneq)) {
- bfa_comp_process(&bfad->bfa, &doneq);
-
- spin_lock_irqsave(&bfad->bfad_lock, flags);
- bfa_comp_free(&bfad->bfa, &doneq);
- spin_unlock_irqrestore(&bfad->bfad_lock, flags);
- }
-
- return IRQ_HANDLED;
-}
-
-/**
- * Initialize the MSIX entry table.
- */
-static void
-bfad_init_msix_entry(struct bfad_s *bfad, struct msix_entry *msix_entries,
- int mask, int max_bit)
-{
- int i;
- int match = 0x00000001;
-
- for (i = 0, bfad->nvec = 0; i < MAX_MSIX_ENTRY; i++) {
- if (mask & match) {
- bfad->msix_tab[bfad->nvec].msix.entry = i;
- bfad->msix_tab[bfad->nvec].bfad = bfad;
- msix_entries[bfad->nvec].entry = i;
- bfad->nvec++;
- }
-
- match <<= 1;
- }
-
-}
-
-int
-bfad_install_msix_handler(struct bfad_s *bfad)
-{
- int i, error = 0;
-
- for (i = 0; i < bfad->nvec; i++) {
- error = request_irq(bfad->msix_tab[i].msix.vector,
- (irq_handler_t) bfad_msix, 0,
- BFAD_DRIVER_NAME, &bfad->msix_tab[i]);
- bfa_trc(bfad, i);
- bfa_trc(bfad, bfad->msix_tab[i].msix.vector);
- if (error) {
- int j;
-
- for (j = 0; j < i; j++)
- free_irq(bfad->msix_tab[j].msix.vector,
- &bfad->msix_tab[j]);
-
- return 1;
- }
- }
-
- return 0;
-}
-
-/**
- * Setup MSIX based interrupt.
- */
-int
-bfad_setup_intr(struct bfad_s *bfad)
-{
- int error = 0;
- u32 mask = 0, i, num_bit = 0, max_bit = 0;
- struct msix_entry msix_entries[MAX_MSIX_ENTRY];
- struct pci_dev *pdev = bfad->pcidev;
-
- /* Call BFA to get the msix map for this PCI function. */
- bfa_msix_getvecs(&bfad->bfa, &mask, &num_bit, &max_bit);
-
- /* Set up the msix entry table */
- bfad_init_msix_entry(bfad, msix_entries, mask, max_bit);
-
- if ((bfa_asic_id_ct(pdev->device) && !msix_disable_ct) ||
- (!bfa_asic_id_ct(pdev->device) && !msix_disable_cb)) {
-
- error = pci_enable_msix(bfad->pcidev, msix_entries, bfad->nvec);
- if (error) {
- /*
- * Only error number of vector is available.
- * We don't have a mechanism to map multiple
- * interrupts into one vector, so even if we
- * can try to request less vectors, we don't
- * know how to associate interrupt events to
- * vectors. Linux doesn't dupicate vectors
- * in the MSIX table for this case.
- */
-
- printk(KERN_WARNING "bfad%d: "
- "pci_enable_msix failed (%d),"
- " use line based.\n", bfad->inst_no, error);
-
- goto line_based;
- }
-
- /* Save the vectors */
- for (i = 0; i < bfad->nvec; i++) {
- bfa_trc(bfad, msix_entries[i].vector);
- bfad->msix_tab[i].msix.vector = msix_entries[i].vector;
- }
-
- bfa_msix_init(&bfad->bfa, bfad->nvec);
-
- bfad->bfad_flags |= BFAD_MSIX_ON;
-
- return error;
- }
-
-line_based:
- error = 0;
- if (request_irq
- (bfad->pcidev->irq, (irq_handler_t) bfad_intx, BFAD_IRQ_FLAGS,
- BFAD_DRIVER_NAME, bfad) != 0) {
- /* Enable interrupt handler failed */
- return 1;
- }
-
- return error;
-}
-
-void
-bfad_remove_intr(struct bfad_s *bfad)
-{
- int i;
-
- if (bfad->bfad_flags & BFAD_MSIX_ON) {
- for (i = 0; i < bfad->nvec; i++)
- free_irq(bfad->msix_tab[i].msix.vector,
- &bfad->msix_tab[i]);
-
- pci_disable_msix(bfad->pcidev);
- bfad->bfad_flags &= ~BFAD_MSIX_ON;
- } else {
- free_irq(bfad->pcidev->irq, bfad);
- }
-}
-
-
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