1e8b12f0fSMahesh Rajashekhara /* 2e8b12f0fSMahesh Rajashekhara * Adaptec AAC series RAID controller driver 3e8b12f0fSMahesh Rajashekhara * (c) Copyright 2001 Red Hat Inc. 4e8b12f0fSMahesh Rajashekhara * 5e8b12f0fSMahesh Rajashekhara * based on the old aacraid driver that is.. 6e8b12f0fSMahesh Rajashekhara * Adaptec aacraid device driver for Linux. 7e8b12f0fSMahesh Rajashekhara * 8e8b12f0fSMahesh Rajashekhara * Copyright (c) 2000-2010 Adaptec, Inc. 9f4babba0SRaghava Aditya Renukunta * 2010-2015 PMC-Sierra, Inc. (aacraid@pmc-sierra.com) 10f4babba0SRaghava Aditya Renukunta * 2016-2017 Microsemi Corp. (aacraid@microsemi.com) 11e8b12f0fSMahesh Rajashekhara * 12e8b12f0fSMahesh Rajashekhara * This program is free software; you can redistribute it and/or modify 13e8b12f0fSMahesh Rajashekhara * it under the terms of the GNU General Public License as published by 14e8b12f0fSMahesh Rajashekhara * the Free Software Foundation; either version 2, or (at your option) 15e8b12f0fSMahesh Rajashekhara * any later version. 16e8b12f0fSMahesh Rajashekhara * 17e8b12f0fSMahesh Rajashekhara * This program is distributed in the hope that it will be useful, 18e8b12f0fSMahesh Rajashekhara * but WITHOUT ANY WARRANTY; without even the implied warranty of 19e8b12f0fSMahesh Rajashekhara * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 20e8b12f0fSMahesh Rajashekhara * GNU General Public License for more details. 21e8b12f0fSMahesh Rajashekhara * 22e8b12f0fSMahesh Rajashekhara * You should have received a copy of the GNU General Public License 23e8b12f0fSMahesh Rajashekhara * along with this program; see the file COPYING. If not, write to 24e8b12f0fSMahesh Rajashekhara * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. 25e8b12f0fSMahesh Rajashekhara * 26e8b12f0fSMahesh Rajashekhara * Module Name: 27e8b12f0fSMahesh Rajashekhara * src.c 28e8b12f0fSMahesh Rajashekhara * 29e8b12f0fSMahesh Rajashekhara * Abstract: Hardware Device Interface for PMC SRC based controllers 30e8b12f0fSMahesh Rajashekhara * 31e8b12f0fSMahesh Rajashekhara */ 32e8b12f0fSMahesh Rajashekhara 33e8b12f0fSMahesh Rajashekhara #include <linux/kernel.h> 34e8b12f0fSMahesh Rajashekhara #include <linux/init.h> 35e8b12f0fSMahesh Rajashekhara #include <linux/types.h> 36e8b12f0fSMahesh Rajashekhara #include <linux/pci.h> 37e8b12f0fSMahesh Rajashekhara #include <linux/spinlock.h> 38e8b12f0fSMahesh Rajashekhara #include <linux/slab.h> 39e8b12f0fSMahesh Rajashekhara #include <linux/blkdev.h> 40e8b12f0fSMahesh Rajashekhara #include <linux/delay.h> 41e8b12f0fSMahesh Rajashekhara #include <linux/completion.h> 42e8b12f0fSMahesh Rajashekhara #include <linux/time.h> 43e8b12f0fSMahesh Rajashekhara #include <linux/interrupt.h> 44e8b12f0fSMahesh Rajashekhara #include <scsi/scsi_host.h> 45e8b12f0fSMahesh Rajashekhara 46e8b12f0fSMahesh Rajashekhara #include "aacraid.h" 47e8b12f0fSMahesh Rajashekhara 48495c0217SMahesh Rajashekhara static int aac_src_get_sync_status(struct aac_dev *dev); 49495c0217SMahesh Rajashekhara 50305974feSkbuild test robot static irqreturn_t aac_src_intr_message(int irq, void *dev_id) 51e8b12f0fSMahesh Rajashekhara { 52495c0217SMahesh Rajashekhara struct aac_msix_ctx *ctx; 53495c0217SMahesh Rajashekhara struct aac_dev *dev; 54e8b12f0fSMahesh Rajashekhara unsigned long bellbits, bellbits_shifted; 55495c0217SMahesh Rajashekhara int vector_no; 56495c0217SMahesh Rajashekhara int isFastResponse, mode; 57e8b12f0fSMahesh Rajashekhara u32 index, handle; 58e8b12f0fSMahesh Rajashekhara 59495c0217SMahesh Rajashekhara ctx = (struct aac_msix_ctx *)dev_id; 60495c0217SMahesh Rajashekhara dev = ctx->dev; 61495c0217SMahesh Rajashekhara vector_no = ctx->vector_no; 62495c0217SMahesh Rajashekhara 63495c0217SMahesh Rajashekhara if (dev->msi_enabled) { 64495c0217SMahesh Rajashekhara mode = AAC_INT_MODE_MSI; 65495c0217SMahesh Rajashekhara if (vector_no == 0) { 66495c0217SMahesh Rajashekhara bellbits = src_readl(dev, MUnit.ODR_MSI); 67495c0217SMahesh Rajashekhara if (bellbits & 0x40000) 68495c0217SMahesh Rajashekhara mode |= AAC_INT_MODE_AIF; 69495c0217SMahesh Rajashekhara if (bellbits & 0x1000) 70495c0217SMahesh Rajashekhara mode |= AAC_INT_MODE_SYNC; 71495c0217SMahesh Rajashekhara } 72495c0217SMahesh Rajashekhara } else { 73495c0217SMahesh Rajashekhara mode = AAC_INT_MODE_INTX; 74e8b12f0fSMahesh Rajashekhara bellbits = src_readl(dev, MUnit.ODR_R); 75e8b12f0fSMahesh Rajashekhara if (bellbits & PmDoorBellResponseSent) { 76e8b12f0fSMahesh Rajashekhara bellbits = PmDoorBellResponseSent; 7785d22bbfSMahesh Rajashekhara src_writel(dev, MUnit.ODR_C, bellbits); 7885d22bbfSMahesh Rajashekhara src_readl(dev, MUnit.ODR_C); 79e8b12f0fSMahesh Rajashekhara } else { 80e8b12f0fSMahesh Rajashekhara bellbits_shifted = (bellbits >> SRC_ODR_SHIFT); 8185d22bbfSMahesh Rajashekhara src_writel(dev, MUnit.ODR_C, bellbits); 8285d22bbfSMahesh Rajashekhara src_readl(dev, MUnit.ODR_C); 83495c0217SMahesh Rajashekhara 84495c0217SMahesh Rajashekhara if (bellbits_shifted & DoorBellAifPending) 85495c0217SMahesh Rajashekhara mode |= AAC_INT_MODE_AIF; 86495c0217SMahesh Rajashekhara else if (bellbits_shifted & OUTBOUNDDOORBELL_0) 87495c0217SMahesh Rajashekhara mode |= AAC_INT_MODE_SYNC; 88495c0217SMahesh Rajashekhara } 89495c0217SMahesh Rajashekhara } 90495c0217SMahesh Rajashekhara 91495c0217SMahesh Rajashekhara if (mode & AAC_INT_MODE_SYNC) { 9211604612SMahesh Rajashekhara unsigned long sflags; 9311604612SMahesh Rajashekhara struct list_head *entry; 9411604612SMahesh Rajashekhara int send_it = 0; 9585d22bbfSMahesh Rajashekhara extern int aac_sync_mode; 9685d22bbfSMahesh Rajashekhara 97495c0217SMahesh Rajashekhara if (!aac_sync_mode && !dev->msi_enabled) { 98c5bebd82SMahesh Rajashekhara src_writel(dev, MUnit.ODR_C, bellbits); 99c5bebd82SMahesh Rajashekhara src_readl(dev, MUnit.ODR_C); 10085d22bbfSMahesh Rajashekhara } 10111604612SMahesh Rajashekhara 10211604612SMahesh Rajashekhara if (dev->sync_fib) { 10311604612SMahesh Rajashekhara if (dev->sync_fib->callback) 10411604612SMahesh Rajashekhara dev->sync_fib->callback(dev->sync_fib->callback_data, 10511604612SMahesh Rajashekhara dev->sync_fib); 10611604612SMahesh Rajashekhara spin_lock_irqsave(&dev->sync_fib->event_lock, sflags); 10711604612SMahesh Rajashekhara if (dev->sync_fib->flags & FIB_CONTEXT_FLAG_WAIT) { 10811604612SMahesh Rajashekhara dev->management_fib_count--; 10911604612SMahesh Rajashekhara up(&dev->sync_fib->event_wait); 11011604612SMahesh Rajashekhara } 111495c0217SMahesh Rajashekhara spin_unlock_irqrestore(&dev->sync_fib->event_lock, 112495c0217SMahesh Rajashekhara sflags); 11311604612SMahesh Rajashekhara spin_lock_irqsave(&dev->sync_lock, sflags); 11411604612SMahesh Rajashekhara if (!list_empty(&dev->sync_fib_list)) { 11511604612SMahesh Rajashekhara entry = dev->sync_fib_list.next; 116495c0217SMahesh Rajashekhara dev->sync_fib = list_entry(entry, 117495c0217SMahesh Rajashekhara struct fib, 118495c0217SMahesh Rajashekhara fiblink); 11911604612SMahesh Rajashekhara list_del(entry); 12011604612SMahesh Rajashekhara send_it = 1; 12111604612SMahesh Rajashekhara } else { 12211604612SMahesh Rajashekhara dev->sync_fib = NULL; 12311604612SMahesh Rajashekhara } 12411604612SMahesh Rajashekhara spin_unlock_irqrestore(&dev->sync_lock, sflags); 12511604612SMahesh Rajashekhara if (send_it) { 12611604612SMahesh Rajashekhara aac_adapter_sync_cmd(dev, SEND_SYNCHRONOUS_FIB, 127495c0217SMahesh Rajashekhara (u32)dev->sync_fib->hw_fib_pa, 128495c0217SMahesh Rajashekhara 0, 0, 0, 0, 0, 12911604612SMahesh Rajashekhara NULL, NULL, NULL, NULL, NULL); 13011604612SMahesh Rajashekhara } 13111604612SMahesh Rajashekhara } 132495c0217SMahesh Rajashekhara if (!dev->msi_enabled) 133495c0217SMahesh Rajashekhara mode = 0; 134495c0217SMahesh Rajashekhara 135e8b12f0fSMahesh Rajashekhara } 136e8b12f0fSMahesh Rajashekhara 137495c0217SMahesh Rajashekhara if (mode & AAC_INT_MODE_AIF) { 138495c0217SMahesh Rajashekhara /* handle AIF */ 1393ffd6c5aSRaghava Aditya Renukunta if (dev->sa_firmware) { 1403ffd6c5aSRaghava Aditya Renukunta u32 events = src_readl(dev, MUnit.SCR0); 1413ffd6c5aSRaghava Aditya Renukunta 1423ffd6c5aSRaghava Aditya Renukunta aac_intr_normal(dev, events, 1, 0, NULL); 1433ffd6c5aSRaghava Aditya Renukunta writel(events, &dev->IndexRegs->Mailbox[0]); 1443ffd6c5aSRaghava Aditya Renukunta src_writel(dev, MUnit.IDR, 1 << 23); 1453ffd6c5aSRaghava Aditya Renukunta } else { 1469cb62fa2SRaghava Aditya Renukunta if (dev->aif_thread && dev->fsa_dev) 147495c0217SMahesh Rajashekhara aac_intr_normal(dev, 0, 2, 0, NULL); 1483ffd6c5aSRaghava Aditya Renukunta } 149495c0217SMahesh Rajashekhara if (dev->msi_enabled) 150495c0217SMahesh Rajashekhara aac_src_access_devreg(dev, AAC_CLEAR_AIF_BIT); 151495c0217SMahesh Rajashekhara mode = 0; 152e8b12f0fSMahesh Rajashekhara } 153495c0217SMahesh Rajashekhara 154495c0217SMahesh Rajashekhara if (mode) { 155495c0217SMahesh Rajashekhara index = dev->host_rrq_idx[vector_no]; 156495c0217SMahesh Rajashekhara 157495c0217SMahesh Rajashekhara for (;;) { 158495c0217SMahesh Rajashekhara isFastResponse = 0; 159495c0217SMahesh Rajashekhara /* remove toggle bit (31) */ 1603ffd6c5aSRaghava Aditya Renukunta handle = le32_to_cpu((dev->host_rrq[index]) 1613ffd6c5aSRaghava Aditya Renukunta & 0x7fffffff); 1623ffd6c5aSRaghava Aditya Renukunta /* check fast response bits (30, 1) */ 163495c0217SMahesh Rajashekhara if (handle & 0x40000000) 164495c0217SMahesh Rajashekhara isFastResponse = 1; 165495c0217SMahesh Rajashekhara handle &= 0x0000ffff; 166495c0217SMahesh Rajashekhara if (handle == 0) 167495c0217SMahesh Rajashekhara break; 1683ffd6c5aSRaghava Aditya Renukunta handle >>= 2; 169495c0217SMahesh Rajashekhara if (dev->msi_enabled && dev->max_msix > 1) 170495c0217SMahesh Rajashekhara atomic_dec(&dev->rrq_outstanding[vector_no]); 1713ffd6c5aSRaghava Aditya Renukunta aac_intr_normal(dev, handle, 0, isFastResponse, NULL); 172495c0217SMahesh Rajashekhara dev->host_rrq[index++] = 0; 173495c0217SMahesh Rajashekhara if (index == (vector_no + 1) * dev->vector_cap) 174495c0217SMahesh Rajashekhara index = vector_no * dev->vector_cap; 175495c0217SMahesh Rajashekhara dev->host_rrq_idx[vector_no] = index; 176495c0217SMahesh Rajashekhara } 177495c0217SMahesh Rajashekhara mode = 0; 178495c0217SMahesh Rajashekhara } 179495c0217SMahesh Rajashekhara 180495c0217SMahesh Rajashekhara return IRQ_HANDLED; 181e8b12f0fSMahesh Rajashekhara } 182e8b12f0fSMahesh Rajashekhara 183e8b12f0fSMahesh Rajashekhara /** 184e8b12f0fSMahesh Rajashekhara * aac_src_disable_interrupt - Disable interrupts 185e8b12f0fSMahesh Rajashekhara * @dev: Adapter 186e8b12f0fSMahesh Rajashekhara */ 187e8b12f0fSMahesh Rajashekhara 188e8b12f0fSMahesh Rajashekhara static void aac_src_disable_interrupt(struct aac_dev *dev) 189e8b12f0fSMahesh Rajashekhara { 190e8b12f0fSMahesh Rajashekhara src_writel(dev, MUnit.OIMR, dev->OIMR = 0xffffffff); 191e8b12f0fSMahesh Rajashekhara } 192e8b12f0fSMahesh Rajashekhara 193e8b12f0fSMahesh Rajashekhara /** 194e8b12f0fSMahesh Rajashekhara * aac_src_enable_interrupt_message - Enable interrupts 195e8b12f0fSMahesh Rajashekhara * @dev: Adapter 196e8b12f0fSMahesh Rajashekhara */ 197e8b12f0fSMahesh Rajashekhara 198e8b12f0fSMahesh Rajashekhara static void aac_src_enable_interrupt_message(struct aac_dev *dev) 199e8b12f0fSMahesh Rajashekhara { 200495c0217SMahesh Rajashekhara aac_src_access_devreg(dev, AAC_ENABLE_INTERRUPT); 201e8b12f0fSMahesh Rajashekhara } 202e8b12f0fSMahesh Rajashekhara 203e8b12f0fSMahesh Rajashekhara /** 204e8b12f0fSMahesh Rajashekhara * src_sync_cmd - send a command and wait 205e8b12f0fSMahesh Rajashekhara * @dev: Adapter 206e8b12f0fSMahesh Rajashekhara * @command: Command to execute 207e8b12f0fSMahesh Rajashekhara * @p1: first parameter 208e8b12f0fSMahesh Rajashekhara * @ret: adapter status 209e8b12f0fSMahesh Rajashekhara * 210e8b12f0fSMahesh Rajashekhara * This routine will send a synchronous command to the adapter and wait 211e8b12f0fSMahesh Rajashekhara * for its completion. 212e8b12f0fSMahesh Rajashekhara */ 213e8b12f0fSMahesh Rajashekhara 214e8b12f0fSMahesh Rajashekhara static int src_sync_cmd(struct aac_dev *dev, u32 command, 215e8b12f0fSMahesh Rajashekhara u32 p1, u32 p2, u32 p3, u32 p4, u32 p5, u32 p6, 216e8b12f0fSMahesh Rajashekhara u32 *status, u32 * r1, u32 * r2, u32 * r3, u32 * r4) 217e8b12f0fSMahesh Rajashekhara { 218e8b12f0fSMahesh Rajashekhara unsigned long start; 219dafde947SMahesh Rajashekhara unsigned long delay; 220e8b12f0fSMahesh Rajashekhara int ok; 221e8b12f0fSMahesh Rajashekhara 222e8b12f0fSMahesh Rajashekhara /* 223e8b12f0fSMahesh Rajashekhara * Write the command into Mailbox 0 224e8b12f0fSMahesh Rajashekhara */ 225e8b12f0fSMahesh Rajashekhara writel(command, &dev->IndexRegs->Mailbox[0]); 226e8b12f0fSMahesh Rajashekhara /* 227e8b12f0fSMahesh Rajashekhara * Write the parameters into Mailboxes 1 - 6 228e8b12f0fSMahesh Rajashekhara */ 229e8b12f0fSMahesh Rajashekhara writel(p1, &dev->IndexRegs->Mailbox[1]); 230e8b12f0fSMahesh Rajashekhara writel(p2, &dev->IndexRegs->Mailbox[2]); 231e8b12f0fSMahesh Rajashekhara writel(p3, &dev->IndexRegs->Mailbox[3]); 232e8b12f0fSMahesh Rajashekhara writel(p4, &dev->IndexRegs->Mailbox[4]); 233e8b12f0fSMahesh Rajashekhara 234e8b12f0fSMahesh Rajashekhara /* 235e8b12f0fSMahesh Rajashekhara * Clear the synch command doorbell to start on a clean slate. 236e8b12f0fSMahesh Rajashekhara */ 237495c0217SMahesh Rajashekhara if (!dev->msi_enabled) 238495c0217SMahesh Rajashekhara src_writel(dev, 239495c0217SMahesh Rajashekhara MUnit.ODR_C, 240495c0217SMahesh Rajashekhara OUTBOUNDDOORBELL_0 << SRC_ODR_SHIFT); 241e8b12f0fSMahesh Rajashekhara 242e8b12f0fSMahesh Rajashekhara /* 243e8b12f0fSMahesh Rajashekhara * Disable doorbell interrupts 244e8b12f0fSMahesh Rajashekhara */ 245e8b12f0fSMahesh Rajashekhara src_writel(dev, MUnit.OIMR, dev->OIMR = 0xffffffff); 246e8b12f0fSMahesh Rajashekhara 247e8b12f0fSMahesh Rajashekhara /* 248e8b12f0fSMahesh Rajashekhara * Force the completion of the mask register write before issuing 249e8b12f0fSMahesh Rajashekhara * the interrupt. 250e8b12f0fSMahesh Rajashekhara */ 251e8b12f0fSMahesh Rajashekhara src_readl(dev, MUnit.OIMR); 252e8b12f0fSMahesh Rajashekhara 253e8b12f0fSMahesh Rajashekhara /* 254e8b12f0fSMahesh Rajashekhara * Signal that there is a new synch command 255e8b12f0fSMahesh Rajashekhara */ 256e8b12f0fSMahesh Rajashekhara src_writel(dev, MUnit.IDR, INBOUNDDOORBELL_0 << SRC_IDR_SHIFT); 257e8b12f0fSMahesh Rajashekhara 25811604612SMahesh Rajashekhara if (!dev->sync_mode || command != SEND_SYNCHRONOUS_FIB) { 259e8b12f0fSMahesh Rajashekhara ok = 0; 260e8b12f0fSMahesh Rajashekhara start = jiffies; 261e8b12f0fSMahesh Rajashekhara 262dafde947SMahesh Rajashekhara if (command == IOP_RESET_ALWAYS) { 263dafde947SMahesh Rajashekhara /* Wait up to 10 sec */ 264dafde947SMahesh Rajashekhara delay = 10*HZ; 265dafde947SMahesh Rajashekhara } else { 266dafde947SMahesh Rajashekhara /* Wait up to 5 minutes */ 267dafde947SMahesh Rajashekhara delay = 300*HZ; 268dafde947SMahesh Rajashekhara } 269dafde947SMahesh Rajashekhara while (time_before(jiffies, start+delay)) { 27011604612SMahesh Rajashekhara udelay(5); /* Delay 5 microseconds to let Mon960 get info. */ 27111604612SMahesh Rajashekhara /* 27211604612SMahesh Rajashekhara * Mon960 will set doorbell0 bit when it has completed the command. 273e8b12f0fSMahesh Rajashekhara */ 274495c0217SMahesh Rajashekhara if (aac_src_get_sync_status(dev) & OUTBOUNDDOORBELL_0) { 27511604612SMahesh Rajashekhara /* 27611604612SMahesh Rajashekhara * Clear the doorbell. 27711604612SMahesh Rajashekhara */ 278495c0217SMahesh Rajashekhara if (dev->msi_enabled) 279495c0217SMahesh Rajashekhara aac_src_access_devreg(dev, 280495c0217SMahesh Rajashekhara AAC_CLEAR_SYNC_BIT); 281495c0217SMahesh Rajashekhara else 282495c0217SMahesh Rajashekhara src_writel(dev, 283495c0217SMahesh Rajashekhara MUnit.ODR_C, 284495c0217SMahesh Rajashekhara OUTBOUNDDOORBELL_0 << SRC_ODR_SHIFT); 285e8b12f0fSMahesh Rajashekhara ok = 1; 286e8b12f0fSMahesh Rajashekhara break; 287e8b12f0fSMahesh Rajashekhara } 28811604612SMahesh Rajashekhara /* 28911604612SMahesh Rajashekhara * Yield the processor in case we are slow 29011604612SMahesh Rajashekhara */ 291e8b12f0fSMahesh Rajashekhara msleep(1); 292e8b12f0fSMahesh Rajashekhara } 293e8b12f0fSMahesh Rajashekhara if (unlikely(ok != 1)) { 29411604612SMahesh Rajashekhara /* 29511604612SMahesh Rajashekhara * Restore interrupt mask even though we timed out 29611604612SMahesh Rajashekhara */ 297e8b12f0fSMahesh Rajashekhara aac_adapter_enable_int(dev); 298e8b12f0fSMahesh Rajashekhara return -ETIMEDOUT; 299e8b12f0fSMahesh Rajashekhara } 30011604612SMahesh Rajashekhara /* 30111604612SMahesh Rajashekhara * Pull the synch status from Mailbox 0. 30211604612SMahesh Rajashekhara */ 303e8b12f0fSMahesh Rajashekhara if (status) 304e8b12f0fSMahesh Rajashekhara *status = readl(&dev->IndexRegs->Mailbox[0]); 305e8b12f0fSMahesh Rajashekhara if (r1) 306e8b12f0fSMahesh Rajashekhara *r1 = readl(&dev->IndexRegs->Mailbox[1]); 307e8b12f0fSMahesh Rajashekhara if (r2) 308e8b12f0fSMahesh Rajashekhara *r2 = readl(&dev->IndexRegs->Mailbox[2]); 309e8b12f0fSMahesh Rajashekhara if (r3) 310e8b12f0fSMahesh Rajashekhara *r3 = readl(&dev->IndexRegs->Mailbox[3]); 311e8b12f0fSMahesh Rajashekhara if (r4) 312e8b12f0fSMahesh Rajashekhara *r4 = readl(&dev->IndexRegs->Mailbox[4]); 313495c0217SMahesh Rajashekhara if (command == GET_COMM_PREFERRED_SETTINGS) 314495c0217SMahesh Rajashekhara dev->max_msix = 315495c0217SMahesh Rajashekhara readl(&dev->IndexRegs->Mailbox[5]) & 0xFFFF; 31611604612SMahesh Rajashekhara /* 31711604612SMahesh Rajashekhara * Clear the synch command doorbell. 31811604612SMahesh Rajashekhara */ 319495c0217SMahesh Rajashekhara if (!dev->msi_enabled) 320495c0217SMahesh Rajashekhara src_writel(dev, 321495c0217SMahesh Rajashekhara MUnit.ODR_C, 322495c0217SMahesh Rajashekhara OUTBOUNDDOORBELL_0 << SRC_ODR_SHIFT); 32311604612SMahesh Rajashekhara } 324e8b12f0fSMahesh Rajashekhara 32511604612SMahesh Rajashekhara /* 32611604612SMahesh Rajashekhara * Restore interrupt mask 32711604612SMahesh Rajashekhara */ 328e8b12f0fSMahesh Rajashekhara aac_adapter_enable_int(dev); 329e8b12f0fSMahesh Rajashekhara return 0; 330e8b12f0fSMahesh Rajashekhara } 331e8b12f0fSMahesh Rajashekhara 332e8b12f0fSMahesh Rajashekhara /** 333e8b12f0fSMahesh Rajashekhara * aac_src_interrupt_adapter - interrupt adapter 334e8b12f0fSMahesh Rajashekhara * @dev: Adapter 335e8b12f0fSMahesh Rajashekhara * 336e8b12f0fSMahesh Rajashekhara * Send an interrupt to the i960 and breakpoint it. 337e8b12f0fSMahesh Rajashekhara */ 338e8b12f0fSMahesh Rajashekhara 339e8b12f0fSMahesh Rajashekhara static void aac_src_interrupt_adapter(struct aac_dev *dev) 340e8b12f0fSMahesh Rajashekhara { 341e8b12f0fSMahesh Rajashekhara src_sync_cmd(dev, BREAKPOINT_REQUEST, 342e8b12f0fSMahesh Rajashekhara 0, 0, 0, 0, 0, 0, 343e8b12f0fSMahesh Rajashekhara NULL, NULL, NULL, NULL, NULL); 344e8b12f0fSMahesh Rajashekhara } 345e8b12f0fSMahesh Rajashekhara 346e8b12f0fSMahesh Rajashekhara /** 347e8b12f0fSMahesh Rajashekhara * aac_src_notify_adapter - send an event to the adapter 348e8b12f0fSMahesh Rajashekhara * @dev: Adapter 349e8b12f0fSMahesh Rajashekhara * @event: Event to send 350e8b12f0fSMahesh Rajashekhara * 351e8b12f0fSMahesh Rajashekhara * Notify the i960 that something it probably cares about has 352e8b12f0fSMahesh Rajashekhara * happened. 353e8b12f0fSMahesh Rajashekhara */ 354e8b12f0fSMahesh Rajashekhara 355e8b12f0fSMahesh Rajashekhara static void aac_src_notify_adapter(struct aac_dev *dev, u32 event) 356e8b12f0fSMahesh Rajashekhara { 357e8b12f0fSMahesh Rajashekhara switch (event) { 358e8b12f0fSMahesh Rajashekhara 359e8b12f0fSMahesh Rajashekhara case AdapNormCmdQue: 360e8b12f0fSMahesh Rajashekhara src_writel(dev, MUnit.ODR_C, 361e8b12f0fSMahesh Rajashekhara INBOUNDDOORBELL_1 << SRC_ODR_SHIFT); 362e8b12f0fSMahesh Rajashekhara break; 363e8b12f0fSMahesh Rajashekhara case HostNormRespNotFull: 364e8b12f0fSMahesh Rajashekhara src_writel(dev, MUnit.ODR_C, 365e8b12f0fSMahesh Rajashekhara INBOUNDDOORBELL_4 << SRC_ODR_SHIFT); 366e8b12f0fSMahesh Rajashekhara break; 367e8b12f0fSMahesh Rajashekhara case AdapNormRespQue: 368e8b12f0fSMahesh Rajashekhara src_writel(dev, MUnit.ODR_C, 369e8b12f0fSMahesh Rajashekhara INBOUNDDOORBELL_2 << SRC_ODR_SHIFT); 370e8b12f0fSMahesh Rajashekhara break; 371e8b12f0fSMahesh Rajashekhara case HostNormCmdNotFull: 372e8b12f0fSMahesh Rajashekhara src_writel(dev, MUnit.ODR_C, 373e8b12f0fSMahesh Rajashekhara INBOUNDDOORBELL_3 << SRC_ODR_SHIFT); 374e8b12f0fSMahesh Rajashekhara break; 375e8b12f0fSMahesh Rajashekhara case FastIo: 376e8b12f0fSMahesh Rajashekhara src_writel(dev, MUnit.ODR_C, 377e8b12f0fSMahesh Rajashekhara INBOUNDDOORBELL_6 << SRC_ODR_SHIFT); 378e8b12f0fSMahesh Rajashekhara break; 379e8b12f0fSMahesh Rajashekhara case AdapPrintfDone: 380e8b12f0fSMahesh Rajashekhara src_writel(dev, MUnit.ODR_C, 381e8b12f0fSMahesh Rajashekhara INBOUNDDOORBELL_5 << SRC_ODR_SHIFT); 382e8b12f0fSMahesh Rajashekhara break; 383e8b12f0fSMahesh Rajashekhara default: 384e8b12f0fSMahesh Rajashekhara BUG(); 385e8b12f0fSMahesh Rajashekhara break; 386e8b12f0fSMahesh Rajashekhara } 387e8b12f0fSMahesh Rajashekhara } 388e8b12f0fSMahesh Rajashekhara 389e8b12f0fSMahesh Rajashekhara /** 390e8b12f0fSMahesh Rajashekhara * aac_src_start_adapter - activate adapter 391e8b12f0fSMahesh Rajashekhara * @dev: Adapter 392e8b12f0fSMahesh Rajashekhara * 393e8b12f0fSMahesh Rajashekhara * Start up processing on an i960 based AAC adapter 394e8b12f0fSMahesh Rajashekhara */ 395e8b12f0fSMahesh Rajashekhara 396e8b12f0fSMahesh Rajashekhara static void aac_src_start_adapter(struct aac_dev *dev) 397e8b12f0fSMahesh Rajashekhara { 398d1ef4da8SRaghava Aditya Renukunta union aac_init *init; 399495c0217SMahesh Rajashekhara int i; 400e8b12f0fSMahesh Rajashekhara 40185d22bbfSMahesh Rajashekhara /* reset host_rrq_idx first */ 402495c0217SMahesh Rajashekhara for (i = 0; i < dev->max_msix; i++) { 403495c0217SMahesh Rajashekhara dev->host_rrq_idx[i] = i * dev->vector_cap; 404495c0217SMahesh Rajashekhara atomic_set(&dev->rrq_outstanding[i], 0); 405495c0217SMahesh Rajashekhara } 4063ffd6c5aSRaghava Aditya Renukunta atomic_set(&dev->msix_counter, 0); 407495c0217SMahesh Rajashekhara dev->fibs_pushed_no = 0; 40885d22bbfSMahesh Rajashekhara 409e8b12f0fSMahesh Rajashekhara init = dev->init; 410d1ef4da8SRaghava Aditya Renukunta if (dev->comm_interface == AAC_COMM_MESSAGE_TYPE3) { 411d1ef4da8SRaghava Aditya Renukunta init->r8.host_elapsed_seconds = cpu_to_le32(get_seconds()); 412d1ef4da8SRaghava Aditya Renukunta src_sync_cmd(dev, INIT_STRUCT_BASE_ADDRESS, 41380a94bb3SArnd Bergmann lower_32_bits(dev->init_pa), 41480a94bb3SArnd Bergmann upper_32_bits(dev->init_pa), 415d1ef4da8SRaghava Aditya Renukunta sizeof(struct _r8) + 416d1ef4da8SRaghava Aditya Renukunta (AAC_MAX_HRRQ - 1) * sizeof(struct _rrq), 417d1ef4da8SRaghava Aditya Renukunta 0, 0, 0, NULL, NULL, NULL, NULL, NULL); 418d1ef4da8SRaghava Aditya Renukunta } else { 419d1ef4da8SRaghava Aditya Renukunta init->r7.host_elapsed_seconds = cpu_to_le32(get_seconds()); 420d1ef4da8SRaghava Aditya Renukunta // We can only use a 32 bit address here 421d1ef4da8SRaghava Aditya Renukunta src_sync_cmd(dev, INIT_STRUCT_BASE_ADDRESS, 422d1ef4da8SRaghava Aditya Renukunta (u32)(ulong)dev->init_pa, 0, 0, 0, 0, 0, 423d1ef4da8SRaghava Aditya Renukunta NULL, NULL, NULL, NULL, NULL); 424d1ef4da8SRaghava Aditya Renukunta } 425e8b12f0fSMahesh Rajashekhara 426e8b12f0fSMahesh Rajashekhara } 427e8b12f0fSMahesh Rajashekhara 428e8b12f0fSMahesh Rajashekhara /** 429e8b12f0fSMahesh Rajashekhara * aac_src_check_health 430e8b12f0fSMahesh Rajashekhara * @dev: device to check if healthy 431e8b12f0fSMahesh Rajashekhara * 432e8b12f0fSMahesh Rajashekhara * Will attempt to determine if the specified adapter is alive and 433e8b12f0fSMahesh Rajashekhara * capable of handling requests, returning 0 if alive. 434e8b12f0fSMahesh Rajashekhara */ 435e8b12f0fSMahesh Rajashekhara static int aac_src_check_health(struct aac_dev *dev) 436e8b12f0fSMahesh Rajashekhara { 437e8b12f0fSMahesh Rajashekhara u32 status = src_readl(dev, MUnit.OMR); 438e8b12f0fSMahesh Rajashekhara 439e8b12f0fSMahesh Rajashekhara /* 440e8b12f0fSMahesh Rajashekhara * Check to see if the board panic'd. 441e8b12f0fSMahesh Rajashekhara */ 442e8b12f0fSMahesh Rajashekhara if (unlikely(status & KERNEL_PANIC)) 443c421530bSRaghava Aditya Renukunta goto err_blink; 444c421530bSRaghava Aditya Renukunta 445c421530bSRaghava Aditya Renukunta /* 446c421530bSRaghava Aditya Renukunta * Check to see if the board failed any self tests. 447c421530bSRaghava Aditya Renukunta */ 448c421530bSRaghava Aditya Renukunta if (unlikely(status & SELF_TEST_FAILED)) 449c421530bSRaghava Aditya Renukunta goto err_out; 450c421530bSRaghava Aditya Renukunta 451c421530bSRaghava Aditya Renukunta /* 452c421530bSRaghava Aditya Renukunta * Check to see if the board failed any self tests. 453c421530bSRaghava Aditya Renukunta */ 454c421530bSRaghava Aditya Renukunta if (unlikely(status & MONITOR_PANIC)) 455c421530bSRaghava Aditya Renukunta goto err_out; 456c421530bSRaghava Aditya Renukunta 457e8b12f0fSMahesh Rajashekhara /* 458e8b12f0fSMahesh Rajashekhara * Wait for the adapter to be up and running. 459e8b12f0fSMahesh Rajashekhara */ 460e8b12f0fSMahesh Rajashekhara if (unlikely(!(status & KERNEL_UP_AND_RUNNING))) 461e8b12f0fSMahesh Rajashekhara return -3; 462e8b12f0fSMahesh Rajashekhara /* 463e8b12f0fSMahesh Rajashekhara * Everything is OK 464e8b12f0fSMahesh Rajashekhara */ 465e8b12f0fSMahesh Rajashekhara return 0; 466c421530bSRaghava Aditya Renukunta 467c421530bSRaghava Aditya Renukunta err_out: 468c421530bSRaghava Aditya Renukunta return -1; 469c421530bSRaghava Aditya Renukunta 470c421530bSRaghava Aditya Renukunta err_blink: 471c421530bSRaghava Aditya Renukunta return (status > 16) & 0xFF; 472e8b12f0fSMahesh Rajashekhara } 473e8b12f0fSMahesh Rajashekhara 474423400e6SRaghava Aditya Renukunta static inline u32 aac_get_vector(struct aac_dev *dev) 475423400e6SRaghava Aditya Renukunta { 476423400e6SRaghava Aditya Renukunta return atomic_inc_return(&dev->msix_counter)%dev->max_msix; 477423400e6SRaghava Aditya Renukunta } 478423400e6SRaghava Aditya Renukunta 479e8b12f0fSMahesh Rajashekhara /** 480e8b12f0fSMahesh Rajashekhara * aac_src_deliver_message 481e8b12f0fSMahesh Rajashekhara * @fib: fib to issue 482e8b12f0fSMahesh Rajashekhara * 483e8b12f0fSMahesh Rajashekhara * Will send a fib, returning 0 if successful. 484e8b12f0fSMahesh Rajashekhara */ 485e8b12f0fSMahesh Rajashekhara static int aac_src_deliver_message(struct fib *fib) 486e8b12f0fSMahesh Rajashekhara { 487e8b12f0fSMahesh Rajashekhara struct aac_dev *dev = fib->dev; 488e8b12f0fSMahesh Rajashekhara struct aac_queue *q = &dev->queues->queue[AdapNormCmdQueue]; 489e8b12f0fSMahesh Rajashekhara u32 fibsize; 490b5f1758fSBen Collins dma_addr_t address; 491e8b12f0fSMahesh Rajashekhara struct aac_fib_xporthdr *pFibX; 492423400e6SRaghava Aditya Renukunta int native_hba; 493c6992781SMahesh Rajashekhara #if !defined(writeq) 494c6992781SMahesh Rajashekhara unsigned long flags; 495c6992781SMahesh Rajashekhara #endif 496c6992781SMahesh Rajashekhara 4973f4ce057SRaghava Aditya Renukunta u16 vector_no; 498e8b12f0fSMahesh Rajashekhara 499ef616233SMahesh Rajashekhara atomic_inc(&q->numpending); 500e8b12f0fSMahesh Rajashekhara 501423400e6SRaghava Aditya Renukunta native_hba = (fib->flags & FIB_CONTEXT_FLAG_NATIVE_HBA) ? 1 : 0; 502423400e6SRaghava Aditya Renukunta 503423400e6SRaghava Aditya Renukunta 504423400e6SRaghava Aditya Renukunta if (dev->msi_enabled && dev->max_msix > 1 && 505423400e6SRaghava Aditya Renukunta (native_hba || fib->hw_fib_va->header.Command != AifRequest)) { 506423400e6SRaghava Aditya Renukunta 507423400e6SRaghava Aditya Renukunta if ((dev->comm_interface == AAC_COMM_MESSAGE_TYPE3) 508423400e6SRaghava Aditya Renukunta && dev->sa_firmware) 509423400e6SRaghava Aditya Renukunta vector_no = aac_get_vector(dev); 510423400e6SRaghava Aditya Renukunta else 5113f4ce057SRaghava Aditya Renukunta vector_no = fib->vector_no; 512423400e6SRaghava Aditya Renukunta 513423400e6SRaghava Aditya Renukunta if (native_hba) { 514954b2b5aSRaghava Aditya Renukunta if (fib->flags & FIB_CONTEXT_FLAG_NATIVE_HBA_TMF) { 515954b2b5aSRaghava Aditya Renukunta struct aac_hba_tm_req *tm_req; 516954b2b5aSRaghava Aditya Renukunta 517954b2b5aSRaghava Aditya Renukunta tm_req = (struct aac_hba_tm_req *) 518954b2b5aSRaghava Aditya Renukunta fib->hw_fib_va; 519954b2b5aSRaghava Aditya Renukunta if (tm_req->iu_type == 520954b2b5aSRaghava Aditya Renukunta HBA_IU_TYPE_SCSI_TM_REQ) { 521954b2b5aSRaghava Aditya Renukunta ((struct aac_hba_tm_req *) 522954b2b5aSRaghava Aditya Renukunta fib->hw_fib_va)->reply_qid 523423400e6SRaghava Aditya Renukunta = vector_no; 524954b2b5aSRaghava Aditya Renukunta ((struct aac_hba_tm_req *) 525954b2b5aSRaghava Aditya Renukunta fib->hw_fib_va)->request_id 526423400e6SRaghava Aditya Renukunta += (vector_no << 16); 527423400e6SRaghava Aditya Renukunta } else { 528954b2b5aSRaghava Aditya Renukunta ((struct aac_hba_reset_req *) 529954b2b5aSRaghava Aditya Renukunta fib->hw_fib_va)->reply_qid 530954b2b5aSRaghava Aditya Renukunta = vector_no; 531954b2b5aSRaghava Aditya Renukunta ((struct aac_hba_reset_req *) 532954b2b5aSRaghava Aditya Renukunta fib->hw_fib_va)->request_id 533954b2b5aSRaghava Aditya Renukunta += (vector_no << 16); 534954b2b5aSRaghava Aditya Renukunta } 535954b2b5aSRaghava Aditya Renukunta } else { 536954b2b5aSRaghava Aditya Renukunta ((struct aac_hba_cmd_req *) 537954b2b5aSRaghava Aditya Renukunta fib->hw_fib_va)->reply_qid 538954b2b5aSRaghava Aditya Renukunta = vector_no; 539954b2b5aSRaghava Aditya Renukunta ((struct aac_hba_cmd_req *) 540954b2b5aSRaghava Aditya Renukunta fib->hw_fib_va)->request_id 541954b2b5aSRaghava Aditya Renukunta += (vector_no << 16); 542954b2b5aSRaghava Aditya Renukunta } 543954b2b5aSRaghava Aditya Renukunta } else { 544495c0217SMahesh Rajashekhara fib->hw_fib_va->header.Handle += (vector_no << 16); 545423400e6SRaghava Aditya Renukunta } 5463f4ce057SRaghava Aditya Renukunta } else { 5473f4ce057SRaghava Aditya Renukunta vector_no = 0; 548495c0217SMahesh Rajashekhara } 549495c0217SMahesh Rajashekhara 5503f4ce057SRaghava Aditya Renukunta atomic_inc(&dev->rrq_outstanding[vector_no]); 5513f4ce057SRaghava Aditya Renukunta 552423400e6SRaghava Aditya Renukunta if (native_hba) { 553423400e6SRaghava Aditya Renukunta address = fib->hw_fib_pa; 554423400e6SRaghava Aditya Renukunta fibsize = (fib->hbacmd_size + 127) / 128 - 1; 555423400e6SRaghava Aditya Renukunta if (fibsize > 31) 556423400e6SRaghava Aditya Renukunta fibsize = 31; 557423400e6SRaghava Aditya Renukunta address |= fibsize; 558423400e6SRaghava Aditya Renukunta #if defined(writeq) 559423400e6SRaghava Aditya Renukunta src_writeq(dev, MUnit.IQN_L, (u64)address); 560423400e6SRaghava Aditya Renukunta #else 561423400e6SRaghava Aditya Renukunta spin_lock_irqsave(&fib->dev->iq_lock, flags); 562423400e6SRaghava Aditya Renukunta src_writel(dev, MUnit.IQN_H, 563423400e6SRaghava Aditya Renukunta upper_32_bits(address) & 0xffffffff); 564423400e6SRaghava Aditya Renukunta src_writel(dev, MUnit.IQN_L, address & 0xffffffff); 565423400e6SRaghava Aditya Renukunta spin_unlock_irqrestore(&fib->dev->iq_lock, flags); 566423400e6SRaghava Aditya Renukunta #endif 567423400e6SRaghava Aditya Renukunta } else { 568423400e6SRaghava Aditya Renukunta if (dev->comm_interface == AAC_COMM_MESSAGE_TYPE2 || 569423400e6SRaghava Aditya Renukunta dev->comm_interface == AAC_COMM_MESSAGE_TYPE3) { 57085d22bbfSMahesh Rajashekhara /* Calculate the amount to the fibsize bits */ 571423400e6SRaghava Aditya Renukunta fibsize = (le16_to_cpu(fib->hw_fib_va->header.Size) 572423400e6SRaghava Aditya Renukunta + 127) / 128 - 1; 57385d22bbfSMahesh Rajashekhara /* New FIB header, 32-bit */ 57485d22bbfSMahesh Rajashekhara address = fib->hw_fib_pa; 57585d22bbfSMahesh Rajashekhara fib->hw_fib_va->header.StructType = FIB_MAGIC2; 576423400e6SRaghava Aditya Renukunta fib->hw_fib_va->header.SenderFibAddress = 577423400e6SRaghava Aditya Renukunta cpu_to_le32((u32)address); 57885d22bbfSMahesh Rajashekhara fib->hw_fib_va->header.u.TimeStamp = 0; 57980a94bb3SArnd Bergmann WARN_ON(upper_32_bits(address) != 0L); 58085d22bbfSMahesh Rajashekhara } else { 581e8b12f0fSMahesh Rajashekhara /* Calculate the amount to the fibsize bits */ 582423400e6SRaghava Aditya Renukunta fibsize = (sizeof(struct aac_fib_xporthdr) + 583423400e6SRaghava Aditya Renukunta le16_to_cpu(fib->hw_fib_va->header.Size) 584423400e6SRaghava Aditya Renukunta + 127) / 128 - 1; 585e8b12f0fSMahesh Rajashekhara /* Fill XPORT header */ 586423400e6SRaghava Aditya Renukunta pFibX = (struct aac_fib_xporthdr *) 587423400e6SRaghava Aditya Renukunta ((unsigned char *)fib->hw_fib_va - 588423400e6SRaghava Aditya Renukunta sizeof(struct aac_fib_xporthdr)); 589423400e6SRaghava Aditya Renukunta pFibX->Handle = fib->hw_fib_va->header.Handle; 590423400e6SRaghava Aditya Renukunta pFibX->HostAddress = 591423400e6SRaghava Aditya Renukunta cpu_to_le64((u64)fib->hw_fib_pa); 592423400e6SRaghava Aditya Renukunta pFibX->Size = cpu_to_le32( 593423400e6SRaghava Aditya Renukunta le16_to_cpu(fib->hw_fib_va->header.Size)); 594423400e6SRaghava Aditya Renukunta address = fib->hw_fib_pa - 595423400e6SRaghava Aditya Renukunta (u64)sizeof(struct aac_fib_xporthdr); 59685d22bbfSMahesh Rajashekhara } 597423400e6SRaghava Aditya Renukunta if (fibsize > 31) 598423400e6SRaghava Aditya Renukunta fibsize = 31; 599423400e6SRaghava Aditya Renukunta address |= fibsize; 600423400e6SRaghava Aditya Renukunta 601c6992781SMahesh Rajashekhara #if defined(writeq) 602c6992781SMahesh Rajashekhara src_writeq(dev, MUnit.IQ_L, (u64)address); 603c6992781SMahesh Rajashekhara #else 604c6992781SMahesh Rajashekhara spin_lock_irqsave(&fib->dev->iq_lock, flags); 605423400e6SRaghava Aditya Renukunta src_writel(dev, MUnit.IQ_H, 606423400e6SRaghava Aditya Renukunta upper_32_bits(address) & 0xffffffff); 607b5f1758fSBen Collins src_writel(dev, MUnit.IQ_L, address & 0xffffffff); 608c6992781SMahesh Rajashekhara spin_unlock_irqrestore(&fib->dev->iq_lock, flags); 609c6992781SMahesh Rajashekhara #endif 610423400e6SRaghava Aditya Renukunta } 611e8b12f0fSMahesh Rajashekhara return 0; 612e8b12f0fSMahesh Rajashekhara } 613e8b12f0fSMahesh Rajashekhara 614e8b12f0fSMahesh Rajashekhara /** 615e8b12f0fSMahesh Rajashekhara * aac_src_ioremap 616e8b12f0fSMahesh Rajashekhara * @size: mapping resize request 617e8b12f0fSMahesh Rajashekhara * 618e8b12f0fSMahesh Rajashekhara */ 619e8b12f0fSMahesh Rajashekhara static int aac_src_ioremap(struct aac_dev *dev, u32 size) 620e8b12f0fSMahesh Rajashekhara { 621e8b12f0fSMahesh Rajashekhara if (!size) { 62271552505STomas Henzl iounmap(dev->regs.src.bar1); 62371552505STomas Henzl dev->regs.src.bar1 = NULL; 624e8b12f0fSMahesh Rajashekhara iounmap(dev->regs.src.bar0); 62511604612SMahesh Rajashekhara dev->base = dev->regs.src.bar0 = NULL; 626e8b12f0fSMahesh Rajashekhara return 0; 627e8b12f0fSMahesh Rajashekhara } 628e8b12f0fSMahesh Rajashekhara dev->regs.src.bar1 = ioremap(pci_resource_start(dev->pdev, 2), 629e8b12f0fSMahesh Rajashekhara AAC_MIN_SRC_BAR1_SIZE); 630e8b12f0fSMahesh Rajashekhara dev->base = NULL; 631e8b12f0fSMahesh Rajashekhara if (dev->regs.src.bar1 == NULL) 632e8b12f0fSMahesh Rajashekhara return -1; 633ff08784bSBen Collins dev->base = dev->regs.src.bar0 = ioremap(dev->base_start, size); 634e8b12f0fSMahesh Rajashekhara if (dev->base == NULL) { 635e8b12f0fSMahesh Rajashekhara iounmap(dev->regs.src.bar1); 636e8b12f0fSMahesh Rajashekhara dev->regs.src.bar1 = NULL; 637e8b12f0fSMahesh Rajashekhara return -1; 638e8b12f0fSMahesh Rajashekhara } 639e8b12f0fSMahesh Rajashekhara dev->IndexRegs = &((struct src_registers __iomem *) 64011604612SMahesh Rajashekhara dev->base)->u.tupelo.IndexRegs; 64111604612SMahesh Rajashekhara return 0; 64211604612SMahesh Rajashekhara } 64311604612SMahesh Rajashekhara 64411604612SMahesh Rajashekhara /** 64511604612SMahesh Rajashekhara * aac_srcv_ioremap 64611604612SMahesh Rajashekhara * @size: mapping resize request 64711604612SMahesh Rajashekhara * 64811604612SMahesh Rajashekhara */ 64911604612SMahesh Rajashekhara static int aac_srcv_ioremap(struct aac_dev *dev, u32 size) 65011604612SMahesh Rajashekhara { 65111604612SMahesh Rajashekhara if (!size) { 65211604612SMahesh Rajashekhara iounmap(dev->regs.src.bar0); 65311604612SMahesh Rajashekhara dev->base = dev->regs.src.bar0 = NULL; 65411604612SMahesh Rajashekhara return 0; 65511604612SMahesh Rajashekhara } 6563ffd6c5aSRaghava Aditya Renukunta 6573ffd6c5aSRaghava Aditya Renukunta dev->regs.src.bar1 = 6583ffd6c5aSRaghava Aditya Renukunta ioremap(pci_resource_start(dev->pdev, 2), AAC_MIN_SRCV_BAR1_SIZE); 6593ffd6c5aSRaghava Aditya Renukunta dev->base = NULL; 6603ffd6c5aSRaghava Aditya Renukunta if (dev->regs.src.bar1 == NULL) 66111604612SMahesh Rajashekhara return -1; 6623ffd6c5aSRaghava Aditya Renukunta dev->base = dev->regs.src.bar0 = ioremap(dev->base_start, size); 6633ffd6c5aSRaghava Aditya Renukunta if (dev->base == NULL) { 6643ffd6c5aSRaghava Aditya Renukunta iounmap(dev->regs.src.bar1); 6653ffd6c5aSRaghava Aditya Renukunta dev->regs.src.bar1 = NULL; 6663ffd6c5aSRaghava Aditya Renukunta return -1; 6673ffd6c5aSRaghava Aditya Renukunta } 66811604612SMahesh Rajashekhara dev->IndexRegs = &((struct src_registers __iomem *) 66911604612SMahesh Rajashekhara dev->base)->u.denali.IndexRegs; 670e8b12f0fSMahesh Rajashekhara return 0; 671e8b12f0fSMahesh Rajashekhara } 672e8b12f0fSMahesh Rajashekhara 673a7e2c642SRaghava Aditya Renukunta void aac_set_intx_mode(struct aac_dev *dev) 67431364329SRaghava Aditya Renukunta { 67531364329SRaghava Aditya Renukunta if (dev->msi_enabled) { 67631364329SRaghava Aditya Renukunta aac_src_access_devreg(dev, AAC_ENABLE_INTX); 67731364329SRaghava Aditya Renukunta dev->msi_enabled = 0; 67831364329SRaghava Aditya Renukunta msleep(5000); /* Delay 5 seconds */ 67931364329SRaghava Aditya Renukunta } 68031364329SRaghava Aditya Renukunta } 68131364329SRaghava Aditya Renukunta 68209624645SRaghava Aditya Renukunta static void aac_dump_fw_fib_iop_reset(struct aac_dev *dev) 68309624645SRaghava Aditya Renukunta { 68409624645SRaghava Aditya Renukunta __le32 supported_options3; 68509624645SRaghava Aditya Renukunta 68609624645SRaghava Aditya Renukunta if (!aac_fib_dump) 68709624645SRaghava Aditya Renukunta return; 68809624645SRaghava Aditya Renukunta 68909624645SRaghava Aditya Renukunta supported_options3 = dev->supplement_adapter_info.supported_options3; 69009624645SRaghava Aditya Renukunta if (!(supported_options3 & AAC_OPTION_SUPPORTED3_IOP_RESET_FIB_DUMP)) 69109624645SRaghava Aditya Renukunta return; 69209624645SRaghava Aditya Renukunta 69309624645SRaghava Aditya Renukunta aac_adapter_sync_cmd(dev, IOP_RESET_FW_FIB_DUMP, 69409624645SRaghava Aditya Renukunta 0, 0, 0, 0, 0, 0, NULL, NULL, NULL, NULL, NULL); 69509624645SRaghava Aditya Renukunta } 69609624645SRaghava Aditya Renukunta 69731364329SRaghava Aditya Renukunta static void aac_send_iop_reset(struct aac_dev *dev, int bled) 698e8b12f0fSMahesh Rajashekhara { 699e8b12f0fSMahesh Rajashekhara u32 var, reset_mask; 700e8b12f0fSMahesh Rajashekhara 70109624645SRaghava Aditya Renukunta aac_dump_fw_fib_iop_reset(dev); 70209624645SRaghava Aditya Renukunta 703e8b12f0fSMahesh Rajashekhara bled = aac_adapter_sync_cmd(dev, IOP_RESET_ALWAYS, 70431364329SRaghava Aditya Renukunta 0, 0, 0, 0, 0, 0, &var, 70531364329SRaghava Aditya Renukunta &reset_mask, NULL, NULL, NULL); 70631364329SRaghava Aditya Renukunta 70731364329SRaghava Aditya Renukunta if ((bled || var != 0x00000001) && !dev->doorbell_mask) 70831364329SRaghava Aditya Renukunta bled = -EINVAL; 709dafde947SMahesh Rajashekhara else if (dev->doorbell_mask) { 710dafde947SMahesh Rajashekhara reset_mask = dev->doorbell_mask; 711dafde947SMahesh Rajashekhara bled = 0; 712dafde947SMahesh Rajashekhara var = 0x00000001; 713dafde947SMahesh Rajashekhara } 714495c0217SMahesh Rajashekhara 71531364329SRaghava Aditya Renukunta aac_set_intx_mode(dev); 716495c0217SMahesh Rajashekhara 7171c68856eSRaghava Aditya Renukunta if (!bled && (dev->supplement_adapter_info.supported_options2 & 718dafde947SMahesh Rajashekhara AAC_OPTION_DOORBELL_RESET)) { 719e8b12f0fSMahesh Rajashekhara src_writel(dev, MUnit.IDR, reset_mask); 720dafde947SMahesh Rajashekhara } else { 721dafde947SMahesh Rajashekhara src_writel(dev, MUnit.IDR, 0x100); 722e8b12f0fSMahesh Rajashekhara } 72331364329SRaghava Aditya Renukunta msleep(30000); 724e8b12f0fSMahesh Rajashekhara } 725e8b12f0fSMahesh Rajashekhara 72631364329SRaghava Aditya Renukunta static void aac_send_hardware_soft_reset(struct aac_dev *dev) 72731364329SRaghava Aditya Renukunta { 72831364329SRaghava Aditya Renukunta u_int32_t val; 72931364329SRaghava Aditya Renukunta 73031364329SRaghava Aditya Renukunta val = readl(((char *)(dev->base) + IBW_SWR_OFFSET)); 73131364329SRaghava Aditya Renukunta val |= 0x01; 73231364329SRaghava Aditya Renukunta writel(val, ((char *)(dev->base) + IBW_SWR_OFFSET)); 73331364329SRaghava Aditya Renukunta msleep_interruptible(20000); 73431364329SRaghava Aditya Renukunta } 73531364329SRaghava Aditya Renukunta 73631364329SRaghava Aditya Renukunta static int aac_src_restart_adapter(struct aac_dev *dev, int bled, u8 reset_type) 73731364329SRaghava Aditya Renukunta { 73831364329SRaghava Aditya Renukunta unsigned long status, start; 73931364329SRaghava Aditya Renukunta 74031364329SRaghava Aditya Renukunta if (bled < 0) 74131364329SRaghava Aditya Renukunta goto invalid_out; 74231364329SRaghava Aditya Renukunta 74331364329SRaghava Aditya Renukunta if (bled) 74431364329SRaghava Aditya Renukunta pr_err("%s%d: adapter kernel panic'd %x.\n", 74531364329SRaghava Aditya Renukunta dev->name, dev->id, bled); 74631364329SRaghava Aditya Renukunta 747146aa178SRaghava Aditya Renukunta /* 748146aa178SRaghava Aditya Renukunta * When there is a BlinkLED, IOP_RESET has not effect 749146aa178SRaghava Aditya Renukunta */ 750146aa178SRaghava Aditya Renukunta if (bled >= 2 && dev->sa_firmware && reset_type & HW_IOP_RESET) 751146aa178SRaghava Aditya Renukunta reset_type &= ~HW_IOP_RESET; 752146aa178SRaghava Aditya Renukunta 75331364329SRaghava Aditya Renukunta dev->a_ops.adapter_enable_int = aac_src_disable_interrupt; 75431364329SRaghava Aditya Renukunta 75531364329SRaghava Aditya Renukunta switch (reset_type) { 75631364329SRaghava Aditya Renukunta case IOP_HWSOFT_RESET: 75731364329SRaghava Aditya Renukunta aac_send_iop_reset(dev, bled); 75831364329SRaghava Aditya Renukunta /* 75931364329SRaghava Aditya Renukunta * Check to see if KERNEL_UP_AND_RUNNING 76031364329SRaghava Aditya Renukunta * Wait for the adapter to be up and running. 76131364329SRaghava Aditya Renukunta * If !KERNEL_UP_AND_RUNNING issue HW Soft Reset 76231364329SRaghava Aditya Renukunta */ 76331364329SRaghava Aditya Renukunta status = src_readl(dev, MUnit.OMR); 76431364329SRaghava Aditya Renukunta if (dev->sa_firmware 76531364329SRaghava Aditya Renukunta && !(status & KERNEL_UP_AND_RUNNING)) { 76631364329SRaghava Aditya Renukunta start = jiffies; 76731364329SRaghava Aditya Renukunta do { 76831364329SRaghava Aditya Renukunta status = src_readl(dev, MUnit.OMR); 76931364329SRaghava Aditya Renukunta if (time_after(jiffies, 77031364329SRaghava Aditya Renukunta start+HZ*SOFT_RESET_TIME)) { 77131364329SRaghava Aditya Renukunta aac_send_hardware_soft_reset(dev); 77231364329SRaghava Aditya Renukunta start = jiffies; 77331364329SRaghava Aditya Renukunta } 77431364329SRaghava Aditya Renukunta } while (!(status & KERNEL_UP_AND_RUNNING)); 77531364329SRaghava Aditya Renukunta } 77631364329SRaghava Aditya Renukunta break; 77731364329SRaghava Aditya Renukunta case HW_SOFT_RESET: 77831364329SRaghava Aditya Renukunta if (dev->sa_firmware) { 77931364329SRaghava Aditya Renukunta aac_send_hardware_soft_reset(dev); 78031364329SRaghava Aditya Renukunta aac_set_intx_mode(dev); 78131364329SRaghava Aditya Renukunta } 78231364329SRaghava Aditya Renukunta break; 78331364329SRaghava Aditya Renukunta default: 78431364329SRaghava Aditya Renukunta aac_send_iop_reset(dev, bled); 78531364329SRaghava Aditya Renukunta break; 78631364329SRaghava Aditya Renukunta } 78731364329SRaghava Aditya Renukunta 78831364329SRaghava Aditya Renukunta invalid_out: 78931364329SRaghava Aditya Renukunta 790e8b12f0fSMahesh Rajashekhara if (src_readl(dev, MUnit.OMR) & KERNEL_PANIC) 791e8b12f0fSMahesh Rajashekhara return -ENODEV; 792e8b12f0fSMahesh Rajashekhara 793e8b12f0fSMahesh Rajashekhara if (startup_timeout < 300) 794e8b12f0fSMahesh Rajashekhara startup_timeout = 300; 795e8b12f0fSMahesh Rajashekhara 796e8b12f0fSMahesh Rajashekhara return 0; 797e8b12f0fSMahesh Rajashekhara } 798e8b12f0fSMahesh Rajashekhara 799e8b12f0fSMahesh Rajashekhara /** 800e8b12f0fSMahesh Rajashekhara * aac_src_select_comm - Select communications method 801e8b12f0fSMahesh Rajashekhara * @dev: Adapter 802e8b12f0fSMahesh Rajashekhara * @comm: communications method 803e8b12f0fSMahesh Rajashekhara */ 804a44199eeSBaoyou Xie static int aac_src_select_comm(struct aac_dev *dev, int comm) 805e8b12f0fSMahesh Rajashekhara { 806e8b12f0fSMahesh Rajashekhara switch (comm) { 807e8b12f0fSMahesh Rajashekhara case AAC_COMM_MESSAGE: 808e8b12f0fSMahesh Rajashekhara dev->a_ops.adapter_intr = aac_src_intr_message; 809e8b12f0fSMahesh Rajashekhara dev->a_ops.adapter_deliver = aac_src_deliver_message; 810e8b12f0fSMahesh Rajashekhara break; 811e8b12f0fSMahesh Rajashekhara default: 812e8b12f0fSMahesh Rajashekhara return 1; 813e8b12f0fSMahesh Rajashekhara } 814e8b12f0fSMahesh Rajashekhara return 0; 815e8b12f0fSMahesh Rajashekhara } 816e8b12f0fSMahesh Rajashekhara 817e8b12f0fSMahesh Rajashekhara /** 818e8b12f0fSMahesh Rajashekhara * aac_src_init - initialize an Cardinal Frey Bar card 819e8b12f0fSMahesh Rajashekhara * @dev: device to configure 820e8b12f0fSMahesh Rajashekhara * 821e8b12f0fSMahesh Rajashekhara */ 822e8b12f0fSMahesh Rajashekhara 823e8b12f0fSMahesh Rajashekhara int aac_src_init(struct aac_dev *dev) 824e8b12f0fSMahesh Rajashekhara { 825e8b12f0fSMahesh Rajashekhara unsigned long start; 826e8b12f0fSMahesh Rajashekhara unsigned long status; 827e8b12f0fSMahesh Rajashekhara int restart = 0; 828e8b12f0fSMahesh Rajashekhara int instance = dev->id; 829e8b12f0fSMahesh Rajashekhara const char *name = dev->name; 830e8b12f0fSMahesh Rajashekhara 831e8b12f0fSMahesh Rajashekhara dev->a_ops.adapter_ioremap = aac_src_ioremap; 832e8b12f0fSMahesh Rajashekhara dev->a_ops.adapter_comm = aac_src_select_comm; 833e8b12f0fSMahesh Rajashekhara 834e8b12f0fSMahesh Rajashekhara dev->base_size = AAC_MIN_SRC_BAR0_SIZE; 835e8b12f0fSMahesh Rajashekhara if (aac_adapter_ioremap(dev, dev->base_size)) { 836e8b12f0fSMahesh Rajashekhara printk(KERN_WARNING "%s: unable to map adapter.\n", name); 837e8b12f0fSMahesh Rajashekhara goto error_iounmap; 838e8b12f0fSMahesh Rajashekhara } 839e8b12f0fSMahesh Rajashekhara 840e8b12f0fSMahesh Rajashekhara /* Failure to reset here is an option ... */ 841e8b12f0fSMahesh Rajashekhara dev->a_ops.adapter_sync_cmd = src_sync_cmd; 842e8b12f0fSMahesh Rajashekhara dev->a_ops.adapter_enable_int = aac_src_disable_interrupt; 843e8b12f0fSMahesh Rajashekhara if ((aac_reset_devices || reset_devices) && 84431364329SRaghava Aditya Renukunta !aac_src_restart_adapter(dev, 0, IOP_HWSOFT_RESET)) 845e8b12f0fSMahesh Rajashekhara ++restart; 846e8b12f0fSMahesh Rajashekhara /* 847e8b12f0fSMahesh Rajashekhara * Check to see if the board panic'd while booting. 848e8b12f0fSMahesh Rajashekhara */ 849e8b12f0fSMahesh Rajashekhara status = src_readl(dev, MUnit.OMR); 850e8b12f0fSMahesh Rajashekhara if (status & KERNEL_PANIC) { 85131364329SRaghava Aditya Renukunta if (aac_src_restart_adapter(dev, 85231364329SRaghava Aditya Renukunta aac_src_check_health(dev), IOP_HWSOFT_RESET)) 853e8b12f0fSMahesh Rajashekhara goto error_iounmap; 854e8b12f0fSMahesh Rajashekhara ++restart; 855e8b12f0fSMahesh Rajashekhara } 856e8b12f0fSMahesh Rajashekhara /* 857e8b12f0fSMahesh Rajashekhara * Check to see if the board failed any self tests. 858e8b12f0fSMahesh Rajashekhara */ 859e8b12f0fSMahesh Rajashekhara status = src_readl(dev, MUnit.OMR); 860e8b12f0fSMahesh Rajashekhara if (status & SELF_TEST_FAILED) { 861e8b12f0fSMahesh Rajashekhara printk(KERN_ERR "%s%d: adapter self-test failed.\n", 862e8b12f0fSMahesh Rajashekhara dev->name, instance); 863e8b12f0fSMahesh Rajashekhara goto error_iounmap; 864e8b12f0fSMahesh Rajashekhara } 865e8b12f0fSMahesh Rajashekhara /* 866e8b12f0fSMahesh Rajashekhara * Check to see if the monitor panic'd while booting. 867e8b12f0fSMahesh Rajashekhara */ 868e8b12f0fSMahesh Rajashekhara if (status & MONITOR_PANIC) { 869e8b12f0fSMahesh Rajashekhara printk(KERN_ERR "%s%d: adapter monitor panic.\n", 870e8b12f0fSMahesh Rajashekhara dev->name, instance); 871e8b12f0fSMahesh Rajashekhara goto error_iounmap; 872e8b12f0fSMahesh Rajashekhara } 873e8b12f0fSMahesh Rajashekhara start = jiffies; 874e8b12f0fSMahesh Rajashekhara /* 875e8b12f0fSMahesh Rajashekhara * Wait for the adapter to be up and running. Wait up to 3 minutes 876e8b12f0fSMahesh Rajashekhara */ 877e8b12f0fSMahesh Rajashekhara while (!((status = src_readl(dev, MUnit.OMR)) & 878e8b12f0fSMahesh Rajashekhara KERNEL_UP_AND_RUNNING)) { 879e8b12f0fSMahesh Rajashekhara if ((restart && 880e8b12f0fSMahesh Rajashekhara (status & (KERNEL_PANIC|SELF_TEST_FAILED|MONITOR_PANIC))) || 881e8b12f0fSMahesh Rajashekhara time_after(jiffies, start+HZ*startup_timeout)) { 882e8b12f0fSMahesh Rajashekhara printk(KERN_ERR "%s%d: adapter kernel failed to start, init status = %lx.\n", 883e8b12f0fSMahesh Rajashekhara dev->name, instance, status); 884e8b12f0fSMahesh Rajashekhara goto error_iounmap; 885e8b12f0fSMahesh Rajashekhara } 886e8b12f0fSMahesh Rajashekhara if (!restart && 887e8b12f0fSMahesh Rajashekhara ((status & (KERNEL_PANIC|SELF_TEST_FAILED|MONITOR_PANIC)) || 888e8b12f0fSMahesh Rajashekhara time_after(jiffies, start + HZ * 889e8b12f0fSMahesh Rajashekhara ((startup_timeout > 60) 890e8b12f0fSMahesh Rajashekhara ? (startup_timeout - 60) 891e8b12f0fSMahesh Rajashekhara : (startup_timeout / 2))))) { 892e8b12f0fSMahesh Rajashekhara if (likely(!aac_src_restart_adapter(dev, 89331364329SRaghava Aditya Renukunta aac_src_check_health(dev), IOP_HWSOFT_RESET))) 894e8b12f0fSMahesh Rajashekhara start = jiffies; 895e8b12f0fSMahesh Rajashekhara ++restart; 896e8b12f0fSMahesh Rajashekhara } 897e8b12f0fSMahesh Rajashekhara msleep(1); 898e8b12f0fSMahesh Rajashekhara } 899e8b12f0fSMahesh Rajashekhara if (restart && aac_commit) 900e8b12f0fSMahesh Rajashekhara aac_commit = 1; 901e8b12f0fSMahesh Rajashekhara /* 902e8b12f0fSMahesh Rajashekhara * Fill in the common function dispatch table. 903e8b12f0fSMahesh Rajashekhara */ 904e8b12f0fSMahesh Rajashekhara dev->a_ops.adapter_interrupt = aac_src_interrupt_adapter; 905e8b12f0fSMahesh Rajashekhara dev->a_ops.adapter_disable_int = aac_src_disable_interrupt; 906dafde947SMahesh Rajashekhara dev->a_ops.adapter_enable_int = aac_src_disable_interrupt; 907e8b12f0fSMahesh Rajashekhara dev->a_ops.adapter_notify = aac_src_notify_adapter; 908e8b12f0fSMahesh Rajashekhara dev->a_ops.adapter_sync_cmd = src_sync_cmd; 909e8b12f0fSMahesh Rajashekhara dev->a_ops.adapter_check_health = aac_src_check_health; 910e8b12f0fSMahesh Rajashekhara dev->a_ops.adapter_restart = aac_src_restart_adapter; 911de665f28SMahesh Rajashekhara dev->a_ops.adapter_start = aac_src_start_adapter; 912e8b12f0fSMahesh Rajashekhara 913e8b12f0fSMahesh Rajashekhara /* 914e8b12f0fSMahesh Rajashekhara * First clear out all interrupts. Then enable the one's that we 915e8b12f0fSMahesh Rajashekhara * can handle. 916e8b12f0fSMahesh Rajashekhara */ 917e8b12f0fSMahesh Rajashekhara aac_adapter_comm(dev, AAC_COMM_MESSAGE); 918e8b12f0fSMahesh Rajashekhara aac_adapter_disable_int(dev); 919e8b12f0fSMahesh Rajashekhara src_writel(dev, MUnit.ODR_C, 0xffffffff); 920e8b12f0fSMahesh Rajashekhara aac_adapter_enable_int(dev); 921e8b12f0fSMahesh Rajashekhara 922e8b12f0fSMahesh Rajashekhara if (aac_init_adapter(dev) == NULL) 923e8b12f0fSMahesh Rajashekhara goto error_iounmap; 924e8b12f0fSMahesh Rajashekhara if (dev->comm_interface != AAC_COMM_MESSAGE_TYPE1) 925e8b12f0fSMahesh Rajashekhara goto error_iounmap; 926e8b12f0fSMahesh Rajashekhara 9279022d375SMahesh Rajashekhara dev->msi = !pci_enable_msi(dev->pdev); 928e8b12f0fSMahesh Rajashekhara 929495c0217SMahesh Rajashekhara dev->aac_msix[0].vector_no = 0; 930495c0217SMahesh Rajashekhara dev->aac_msix[0].dev = dev; 931495c0217SMahesh Rajashekhara 932e8b12f0fSMahesh Rajashekhara if (request_irq(dev->pdev->irq, dev->a_ops.adapter_intr, 933495c0217SMahesh Rajashekhara IRQF_SHARED, "aacraid", &(dev->aac_msix[0])) < 0) { 934e8b12f0fSMahesh Rajashekhara 935e8b12f0fSMahesh Rajashekhara if (dev->msi) 936e8b12f0fSMahesh Rajashekhara pci_disable_msi(dev->pdev); 937e8b12f0fSMahesh Rajashekhara 938e8b12f0fSMahesh Rajashekhara printk(KERN_ERR "%s%d: Interrupt unavailable.\n", 939e8b12f0fSMahesh Rajashekhara name, instance); 940e8b12f0fSMahesh Rajashekhara goto error_iounmap; 941e8b12f0fSMahesh Rajashekhara } 942e8b12f0fSMahesh Rajashekhara dev->dbg_base = pci_resource_start(dev->pdev, 2); 943e8b12f0fSMahesh Rajashekhara dev->dbg_base_mapped = dev->regs.src.bar1; 944e8b12f0fSMahesh Rajashekhara dev->dbg_size = AAC_MIN_SRC_BAR1_SIZE; 945dafde947SMahesh Rajashekhara dev->a_ops.adapter_enable_int = aac_src_enable_interrupt_message; 946e8b12f0fSMahesh Rajashekhara 947e8b12f0fSMahesh Rajashekhara aac_adapter_enable_int(dev); 94811604612SMahesh Rajashekhara 94911604612SMahesh Rajashekhara if (!dev->sync_mode) { 950e8b12f0fSMahesh Rajashekhara /* 951e8b12f0fSMahesh Rajashekhara * Tell the adapter that all is configured, and it can 952e8b12f0fSMahesh Rajashekhara * start accepting requests 953e8b12f0fSMahesh Rajashekhara */ 954e8b12f0fSMahesh Rajashekhara aac_src_start_adapter(dev); 95511604612SMahesh Rajashekhara } 956e8b12f0fSMahesh Rajashekhara return 0; 957e8b12f0fSMahesh Rajashekhara 958e8b12f0fSMahesh Rajashekhara error_iounmap: 959e8b12f0fSMahesh Rajashekhara 960e8b12f0fSMahesh Rajashekhara return -1; 961e8b12f0fSMahesh Rajashekhara } 96211604612SMahesh Rajashekhara 96311604612SMahesh Rajashekhara /** 96411604612SMahesh Rajashekhara * aac_srcv_init - initialize an SRCv card 96511604612SMahesh Rajashekhara * @dev: device to configure 96611604612SMahesh Rajashekhara * 96711604612SMahesh Rajashekhara */ 96811604612SMahesh Rajashekhara 96911604612SMahesh Rajashekhara int aac_srcv_init(struct aac_dev *dev) 97011604612SMahesh Rajashekhara { 97111604612SMahesh Rajashekhara unsigned long start; 97211604612SMahesh Rajashekhara unsigned long status; 97311604612SMahesh Rajashekhara int restart = 0; 97411604612SMahesh Rajashekhara int instance = dev->id; 97511604612SMahesh Rajashekhara const char *name = dev->name; 97611604612SMahesh Rajashekhara 97711604612SMahesh Rajashekhara dev->a_ops.adapter_ioremap = aac_srcv_ioremap; 97811604612SMahesh Rajashekhara dev->a_ops.adapter_comm = aac_src_select_comm; 97911604612SMahesh Rajashekhara 98011604612SMahesh Rajashekhara dev->base_size = AAC_MIN_SRCV_BAR0_SIZE; 98111604612SMahesh Rajashekhara if (aac_adapter_ioremap(dev, dev->base_size)) { 98211604612SMahesh Rajashekhara printk(KERN_WARNING "%s: unable to map adapter.\n", name); 98311604612SMahesh Rajashekhara goto error_iounmap; 98411604612SMahesh Rajashekhara } 98511604612SMahesh Rajashekhara 98611604612SMahesh Rajashekhara /* Failure to reset here is an option ... */ 98711604612SMahesh Rajashekhara dev->a_ops.adapter_sync_cmd = src_sync_cmd; 98811604612SMahesh Rajashekhara dev->a_ops.adapter_enable_int = aac_src_disable_interrupt; 98911604612SMahesh Rajashekhara if ((aac_reset_devices || reset_devices) && 99031364329SRaghava Aditya Renukunta !aac_src_restart_adapter(dev, 0, IOP_HWSOFT_RESET)) 99111604612SMahesh Rajashekhara ++restart; 99211604612SMahesh Rajashekhara /* 9932c10cd43SMahesh Rajashekhara * Check to see if flash update is running. 9942c10cd43SMahesh Rajashekhara * Wait for the adapter to be up and running. Wait up to 5 minutes 9952c10cd43SMahesh Rajashekhara */ 9962c10cd43SMahesh Rajashekhara status = src_readl(dev, MUnit.OMR); 9972c10cd43SMahesh Rajashekhara if (status & FLASH_UPD_PENDING) { 9982c10cd43SMahesh Rajashekhara start = jiffies; 9992c10cd43SMahesh Rajashekhara do { 10002c10cd43SMahesh Rajashekhara status = src_readl(dev, MUnit.OMR); 10012c10cd43SMahesh Rajashekhara if (time_after(jiffies, start+HZ*FWUPD_TIMEOUT)) { 10022c10cd43SMahesh Rajashekhara printk(KERN_ERR "%s%d: adapter flash update failed.\n", 10032c10cd43SMahesh Rajashekhara dev->name, instance); 10042c10cd43SMahesh Rajashekhara goto error_iounmap; 10052c10cd43SMahesh Rajashekhara } 10062c10cd43SMahesh Rajashekhara } while (!(status & FLASH_UPD_SUCCESS) && 10072c10cd43SMahesh Rajashekhara !(status & FLASH_UPD_FAILED)); 10082c10cd43SMahesh Rajashekhara /* Delay 10 seconds. 10092c10cd43SMahesh Rajashekhara * Because right now FW is doing a soft reset, 10102c10cd43SMahesh Rajashekhara * do not read scratch pad register at this time 10112c10cd43SMahesh Rajashekhara */ 10122c10cd43SMahesh Rajashekhara ssleep(10); 10132c10cd43SMahesh Rajashekhara } 10142c10cd43SMahesh Rajashekhara /* 101511604612SMahesh Rajashekhara * Check to see if the board panic'd while booting. 101611604612SMahesh Rajashekhara */ 101711604612SMahesh Rajashekhara status = src_readl(dev, MUnit.OMR); 101811604612SMahesh Rajashekhara if (status & KERNEL_PANIC) { 101931364329SRaghava Aditya Renukunta if (aac_src_restart_adapter(dev, 102031364329SRaghava Aditya Renukunta aac_src_check_health(dev), IOP_HWSOFT_RESET)) 102111604612SMahesh Rajashekhara goto error_iounmap; 102211604612SMahesh Rajashekhara ++restart; 102311604612SMahesh Rajashekhara } 102411604612SMahesh Rajashekhara /* 102511604612SMahesh Rajashekhara * Check to see if the board failed any self tests. 102611604612SMahesh Rajashekhara */ 102711604612SMahesh Rajashekhara status = src_readl(dev, MUnit.OMR); 102811604612SMahesh Rajashekhara if (status & SELF_TEST_FAILED) { 102911604612SMahesh Rajashekhara printk(KERN_ERR "%s%d: adapter self-test failed.\n", dev->name, instance); 103011604612SMahesh Rajashekhara goto error_iounmap; 103111604612SMahesh Rajashekhara } 103211604612SMahesh Rajashekhara /* 103311604612SMahesh Rajashekhara * Check to see if the monitor panic'd while booting. 103411604612SMahesh Rajashekhara */ 103511604612SMahesh Rajashekhara if (status & MONITOR_PANIC) { 103611604612SMahesh Rajashekhara printk(KERN_ERR "%s%d: adapter monitor panic.\n", dev->name, instance); 103711604612SMahesh Rajashekhara goto error_iounmap; 103811604612SMahesh Rajashekhara } 103911604612SMahesh Rajashekhara start = jiffies; 104011604612SMahesh Rajashekhara /* 104111604612SMahesh Rajashekhara * Wait for the adapter to be up and running. Wait up to 3 minutes 104211604612SMahesh Rajashekhara */ 10432c10cd43SMahesh Rajashekhara while (!((status = src_readl(dev, MUnit.OMR)) & 10442c10cd43SMahesh Rajashekhara KERNEL_UP_AND_RUNNING) || 10452c10cd43SMahesh Rajashekhara status == 0xffffffff) { 104611604612SMahesh Rajashekhara if ((restart && 104711604612SMahesh Rajashekhara (status & (KERNEL_PANIC|SELF_TEST_FAILED|MONITOR_PANIC))) || 104811604612SMahesh Rajashekhara time_after(jiffies, start+HZ*startup_timeout)) { 104911604612SMahesh Rajashekhara printk(KERN_ERR "%s%d: adapter kernel failed to start, init status = %lx.\n", 105011604612SMahesh Rajashekhara dev->name, instance, status); 105111604612SMahesh Rajashekhara goto error_iounmap; 105211604612SMahesh Rajashekhara } 105311604612SMahesh Rajashekhara if (!restart && 105411604612SMahesh Rajashekhara ((status & (KERNEL_PANIC|SELF_TEST_FAILED|MONITOR_PANIC)) || 105511604612SMahesh Rajashekhara time_after(jiffies, start + HZ * 105611604612SMahesh Rajashekhara ((startup_timeout > 60) 105711604612SMahesh Rajashekhara ? (startup_timeout - 60) 105811604612SMahesh Rajashekhara : (startup_timeout / 2))))) { 105931364329SRaghava Aditya Renukunta if (likely(!aac_src_restart_adapter(dev, 106031364329SRaghava Aditya Renukunta aac_src_check_health(dev), IOP_HWSOFT_RESET))) 106111604612SMahesh Rajashekhara start = jiffies; 106211604612SMahesh Rajashekhara ++restart; 106311604612SMahesh Rajashekhara } 106411604612SMahesh Rajashekhara msleep(1); 106511604612SMahesh Rajashekhara } 106611604612SMahesh Rajashekhara if (restart && aac_commit) 106711604612SMahesh Rajashekhara aac_commit = 1; 106811604612SMahesh Rajashekhara /* 106911604612SMahesh Rajashekhara * Fill in the common function dispatch table. 107011604612SMahesh Rajashekhara */ 107111604612SMahesh Rajashekhara dev->a_ops.adapter_interrupt = aac_src_interrupt_adapter; 107211604612SMahesh Rajashekhara dev->a_ops.adapter_disable_int = aac_src_disable_interrupt; 1073dafde947SMahesh Rajashekhara dev->a_ops.adapter_enable_int = aac_src_disable_interrupt; 107411604612SMahesh Rajashekhara dev->a_ops.adapter_notify = aac_src_notify_adapter; 107511604612SMahesh Rajashekhara dev->a_ops.adapter_sync_cmd = src_sync_cmd; 107611604612SMahesh Rajashekhara dev->a_ops.adapter_check_health = aac_src_check_health; 107711604612SMahesh Rajashekhara dev->a_ops.adapter_restart = aac_src_restart_adapter; 1078de665f28SMahesh Rajashekhara dev->a_ops.adapter_start = aac_src_start_adapter; 107911604612SMahesh Rajashekhara 108011604612SMahesh Rajashekhara /* 108111604612SMahesh Rajashekhara * First clear out all interrupts. Then enable the one's that we 108211604612SMahesh Rajashekhara * can handle. 108311604612SMahesh Rajashekhara */ 108411604612SMahesh Rajashekhara aac_adapter_comm(dev, AAC_COMM_MESSAGE); 108511604612SMahesh Rajashekhara aac_adapter_disable_int(dev); 108611604612SMahesh Rajashekhara src_writel(dev, MUnit.ODR_C, 0xffffffff); 108711604612SMahesh Rajashekhara aac_adapter_enable_int(dev); 108811604612SMahesh Rajashekhara 108911604612SMahesh Rajashekhara if (aac_init_adapter(dev) == NULL) 109011604612SMahesh Rajashekhara goto error_iounmap; 1091d1ef4da8SRaghava Aditya Renukunta if ((dev->comm_interface != AAC_COMM_MESSAGE_TYPE2) && 1092d1ef4da8SRaghava Aditya Renukunta (dev->comm_interface != AAC_COMM_MESSAGE_TYPE3)) 109311604612SMahesh Rajashekhara goto error_iounmap; 1094495c0217SMahesh Rajashekhara if (dev->msi_enabled) 1095495c0217SMahesh Rajashekhara aac_src_access_devreg(dev, AAC_ENABLE_MSIX); 1096495c0217SMahesh Rajashekhara 10978b1462e0SMahesh Rajashekhara if (aac_acquire_irq(dev)) 1098495c0217SMahesh Rajashekhara goto error_iounmap; 1099495c0217SMahesh Rajashekhara 11003ffd6c5aSRaghava Aditya Renukunta dev->dbg_base = pci_resource_start(dev->pdev, 2); 11013ffd6c5aSRaghava Aditya Renukunta dev->dbg_base_mapped = dev->regs.src.bar1; 11023ffd6c5aSRaghava Aditya Renukunta dev->dbg_size = AAC_MIN_SRCV_BAR1_SIZE; 1103dafde947SMahesh Rajashekhara dev->a_ops.adapter_enable_int = aac_src_enable_interrupt_message; 110411604612SMahesh Rajashekhara 110511604612SMahesh Rajashekhara aac_adapter_enable_int(dev); 110611604612SMahesh Rajashekhara 110711604612SMahesh Rajashekhara if (!dev->sync_mode) { 110811604612SMahesh Rajashekhara /* 110911604612SMahesh Rajashekhara * Tell the adapter that all is configured, and it can 111011604612SMahesh Rajashekhara * start accepting requests 111111604612SMahesh Rajashekhara */ 111211604612SMahesh Rajashekhara aac_src_start_adapter(dev); 111311604612SMahesh Rajashekhara } 111411604612SMahesh Rajashekhara return 0; 111511604612SMahesh Rajashekhara 111611604612SMahesh Rajashekhara error_iounmap: 111711604612SMahesh Rajashekhara 111811604612SMahesh Rajashekhara return -1; 111911604612SMahesh Rajashekhara } 112011604612SMahesh Rajashekhara 1121495c0217SMahesh Rajashekhara void aac_src_access_devreg(struct aac_dev *dev, int mode) 1122495c0217SMahesh Rajashekhara { 1123495c0217SMahesh Rajashekhara u_int32_t val; 1124495c0217SMahesh Rajashekhara 1125495c0217SMahesh Rajashekhara switch (mode) { 1126495c0217SMahesh Rajashekhara case AAC_ENABLE_INTERRUPT: 1127495c0217SMahesh Rajashekhara src_writel(dev, 1128495c0217SMahesh Rajashekhara MUnit.OIMR, 1129495c0217SMahesh Rajashekhara dev->OIMR = (dev->msi_enabled ? 1130495c0217SMahesh Rajashekhara AAC_INT_ENABLE_TYPE1_MSIX : 1131495c0217SMahesh Rajashekhara AAC_INT_ENABLE_TYPE1_INTX)); 1132495c0217SMahesh Rajashekhara break; 1133495c0217SMahesh Rajashekhara 1134495c0217SMahesh Rajashekhara case AAC_DISABLE_INTERRUPT: 1135495c0217SMahesh Rajashekhara src_writel(dev, 1136495c0217SMahesh Rajashekhara MUnit.OIMR, 1137495c0217SMahesh Rajashekhara dev->OIMR = AAC_INT_DISABLE_ALL); 1138495c0217SMahesh Rajashekhara break; 1139495c0217SMahesh Rajashekhara 1140495c0217SMahesh Rajashekhara case AAC_ENABLE_MSIX: 1141495c0217SMahesh Rajashekhara /* set bit 6 */ 1142495c0217SMahesh Rajashekhara val = src_readl(dev, MUnit.IDR); 1143495c0217SMahesh Rajashekhara val |= 0x40; 1144495c0217SMahesh Rajashekhara src_writel(dev, MUnit.IDR, val); 1145495c0217SMahesh Rajashekhara src_readl(dev, MUnit.IDR); 1146495c0217SMahesh Rajashekhara /* unmask int. */ 1147495c0217SMahesh Rajashekhara val = PMC_ALL_INTERRUPT_BITS; 1148495c0217SMahesh Rajashekhara src_writel(dev, MUnit.IOAR, val); 1149495c0217SMahesh Rajashekhara val = src_readl(dev, MUnit.OIMR); 1150495c0217SMahesh Rajashekhara src_writel(dev, 1151495c0217SMahesh Rajashekhara MUnit.OIMR, 1152495c0217SMahesh Rajashekhara val & (~(PMC_GLOBAL_INT_BIT2 | PMC_GLOBAL_INT_BIT0))); 1153495c0217SMahesh Rajashekhara break; 1154495c0217SMahesh Rajashekhara 1155495c0217SMahesh Rajashekhara case AAC_DISABLE_MSIX: 1156495c0217SMahesh Rajashekhara /* reset bit 6 */ 1157495c0217SMahesh Rajashekhara val = src_readl(dev, MUnit.IDR); 1158495c0217SMahesh Rajashekhara val &= ~0x40; 1159495c0217SMahesh Rajashekhara src_writel(dev, MUnit.IDR, val); 1160495c0217SMahesh Rajashekhara src_readl(dev, MUnit.IDR); 1161495c0217SMahesh Rajashekhara break; 1162495c0217SMahesh Rajashekhara 1163495c0217SMahesh Rajashekhara case AAC_CLEAR_AIF_BIT: 1164495c0217SMahesh Rajashekhara /* set bit 5 */ 1165495c0217SMahesh Rajashekhara val = src_readl(dev, MUnit.IDR); 1166495c0217SMahesh Rajashekhara val |= 0x20; 1167495c0217SMahesh Rajashekhara src_writel(dev, MUnit.IDR, val); 1168495c0217SMahesh Rajashekhara src_readl(dev, MUnit.IDR); 1169495c0217SMahesh Rajashekhara break; 1170495c0217SMahesh Rajashekhara 1171495c0217SMahesh Rajashekhara case AAC_CLEAR_SYNC_BIT: 1172495c0217SMahesh Rajashekhara /* set bit 4 */ 1173495c0217SMahesh Rajashekhara val = src_readl(dev, MUnit.IDR); 1174495c0217SMahesh Rajashekhara val |= 0x10; 1175495c0217SMahesh Rajashekhara src_writel(dev, MUnit.IDR, val); 1176495c0217SMahesh Rajashekhara src_readl(dev, MUnit.IDR); 1177495c0217SMahesh Rajashekhara break; 1178495c0217SMahesh Rajashekhara 1179495c0217SMahesh Rajashekhara case AAC_ENABLE_INTX: 1180495c0217SMahesh Rajashekhara /* set bit 7 */ 1181495c0217SMahesh Rajashekhara val = src_readl(dev, MUnit.IDR); 1182495c0217SMahesh Rajashekhara val |= 0x80; 1183495c0217SMahesh Rajashekhara src_writel(dev, MUnit.IDR, val); 1184495c0217SMahesh Rajashekhara src_readl(dev, MUnit.IDR); 1185495c0217SMahesh Rajashekhara /* unmask int. */ 1186495c0217SMahesh Rajashekhara val = PMC_ALL_INTERRUPT_BITS; 1187495c0217SMahesh Rajashekhara src_writel(dev, MUnit.IOAR, val); 1188495c0217SMahesh Rajashekhara src_readl(dev, MUnit.IOAR); 1189495c0217SMahesh Rajashekhara val = src_readl(dev, MUnit.OIMR); 1190495c0217SMahesh Rajashekhara src_writel(dev, MUnit.OIMR, 1191495c0217SMahesh Rajashekhara val & (~(PMC_GLOBAL_INT_BIT2))); 1192495c0217SMahesh Rajashekhara break; 1193495c0217SMahesh Rajashekhara 1194495c0217SMahesh Rajashekhara default: 1195495c0217SMahesh Rajashekhara break; 1196495c0217SMahesh Rajashekhara } 1197495c0217SMahesh Rajashekhara } 1198495c0217SMahesh Rajashekhara 1199495c0217SMahesh Rajashekhara static int aac_src_get_sync_status(struct aac_dev *dev) 1200495c0217SMahesh Rajashekhara { 1201495c0217SMahesh Rajashekhara 1202495c0217SMahesh Rajashekhara int val; 1203495c0217SMahesh Rajashekhara 1204495c0217SMahesh Rajashekhara if (dev->msi_enabled) 1205495c0217SMahesh Rajashekhara val = src_readl(dev, MUnit.ODR_MSI) & 0x1000 ? 1 : 0; 1206495c0217SMahesh Rajashekhara else 1207495c0217SMahesh Rajashekhara val = src_readl(dev, MUnit.ODR_R) >> SRC_ODR_SHIFT; 1208495c0217SMahesh Rajashekhara 1209495c0217SMahesh Rajashekhara return val; 1210495c0217SMahesh Rajashekhara } 1211