1c82ee6d3SThomas Gleixner // SPDX-License-Identifier: GPL-2.0-or-later 2e8b12f0fSMahesh Rajashekhara /* 3e8b12f0fSMahesh Rajashekhara * Adaptec AAC series RAID controller driver 4e8b12f0fSMahesh Rajashekhara * (c) Copyright 2001 Red Hat Inc. 5e8b12f0fSMahesh Rajashekhara * 6e8b12f0fSMahesh Rajashekhara * based on the old aacraid driver that is.. 7e8b12f0fSMahesh Rajashekhara * Adaptec aacraid device driver for Linux. 8e8b12f0fSMahesh Rajashekhara * 9e8b12f0fSMahesh Rajashekhara * Copyright (c) 2000-2010 Adaptec, Inc. 10f4babba0SRaghava Aditya Renukunta * 2010-2015 PMC-Sierra, Inc. (aacraid@pmc-sierra.com) 11f4babba0SRaghava Aditya Renukunta * 2016-2017 Microsemi Corp. (aacraid@microsemi.com) 12e8b12f0fSMahesh Rajashekhara * 13e8b12f0fSMahesh Rajashekhara * Module Name: 14e8b12f0fSMahesh Rajashekhara * src.c 15e8b12f0fSMahesh Rajashekhara * 16e8b12f0fSMahesh Rajashekhara * Abstract: Hardware Device Interface for PMC SRC based controllers 17e8b12f0fSMahesh Rajashekhara */ 18e8b12f0fSMahesh Rajashekhara 19e8b12f0fSMahesh Rajashekhara #include <linux/kernel.h> 20e8b12f0fSMahesh Rajashekhara #include <linux/init.h> 21e8b12f0fSMahesh Rajashekhara #include <linux/types.h> 22e8b12f0fSMahesh Rajashekhara #include <linux/pci.h> 23e8b12f0fSMahesh Rajashekhara #include <linux/spinlock.h> 24e8b12f0fSMahesh Rajashekhara #include <linux/slab.h> 25e8b12f0fSMahesh Rajashekhara #include <linux/blkdev.h> 26e8b12f0fSMahesh Rajashekhara #include <linux/delay.h> 27e8b12f0fSMahesh Rajashekhara #include <linux/completion.h> 28e8b12f0fSMahesh Rajashekhara #include <linux/time.h> 29e8b12f0fSMahesh Rajashekhara #include <linux/interrupt.h> 30e8b12f0fSMahesh Rajashekhara #include <scsi/scsi_host.h> 31e8b12f0fSMahesh Rajashekhara 32e8b12f0fSMahesh Rajashekhara #include "aacraid.h" 33e8b12f0fSMahesh Rajashekhara 34495c0217SMahesh Rajashekhara static int aac_src_get_sync_status(struct aac_dev *dev); 35495c0217SMahesh Rajashekhara 36305974feSkbuild test robot static irqreturn_t aac_src_intr_message(int irq, void *dev_id) 37e8b12f0fSMahesh Rajashekhara { 38495c0217SMahesh Rajashekhara struct aac_msix_ctx *ctx; 39495c0217SMahesh Rajashekhara struct aac_dev *dev; 40e8b12f0fSMahesh Rajashekhara unsigned long bellbits, bellbits_shifted; 41495c0217SMahesh Rajashekhara int vector_no; 42495c0217SMahesh Rajashekhara int isFastResponse, mode; 43e8b12f0fSMahesh Rajashekhara u32 index, handle; 44e8b12f0fSMahesh Rajashekhara 45495c0217SMahesh Rajashekhara ctx = (struct aac_msix_ctx *)dev_id; 46495c0217SMahesh Rajashekhara dev = ctx->dev; 47495c0217SMahesh Rajashekhara vector_no = ctx->vector_no; 48495c0217SMahesh Rajashekhara 49495c0217SMahesh Rajashekhara if (dev->msi_enabled) { 50495c0217SMahesh Rajashekhara mode = AAC_INT_MODE_MSI; 51495c0217SMahesh Rajashekhara if (vector_no == 0) { 52495c0217SMahesh Rajashekhara bellbits = src_readl(dev, MUnit.ODR_MSI); 53495c0217SMahesh Rajashekhara if (bellbits & 0x40000) 54495c0217SMahesh Rajashekhara mode |= AAC_INT_MODE_AIF; 55495c0217SMahesh Rajashekhara if (bellbits & 0x1000) 56495c0217SMahesh Rajashekhara mode |= AAC_INT_MODE_SYNC; 57495c0217SMahesh Rajashekhara } 58495c0217SMahesh Rajashekhara } else { 59495c0217SMahesh Rajashekhara mode = AAC_INT_MODE_INTX; 60e8b12f0fSMahesh Rajashekhara bellbits = src_readl(dev, MUnit.ODR_R); 61e8b12f0fSMahesh Rajashekhara if (bellbits & PmDoorBellResponseSent) { 62e8b12f0fSMahesh Rajashekhara bellbits = PmDoorBellResponseSent; 6385d22bbfSMahesh Rajashekhara src_writel(dev, MUnit.ODR_C, bellbits); 6485d22bbfSMahesh Rajashekhara src_readl(dev, MUnit.ODR_C); 65e8b12f0fSMahesh Rajashekhara } else { 66e8b12f0fSMahesh Rajashekhara bellbits_shifted = (bellbits >> SRC_ODR_SHIFT); 6785d22bbfSMahesh Rajashekhara src_writel(dev, MUnit.ODR_C, bellbits); 6885d22bbfSMahesh Rajashekhara src_readl(dev, MUnit.ODR_C); 69495c0217SMahesh Rajashekhara 70495c0217SMahesh Rajashekhara if (bellbits_shifted & DoorBellAifPending) 71495c0217SMahesh Rajashekhara mode |= AAC_INT_MODE_AIF; 72495c0217SMahesh Rajashekhara else if (bellbits_shifted & OUTBOUNDDOORBELL_0) 73495c0217SMahesh Rajashekhara mode |= AAC_INT_MODE_SYNC; 74495c0217SMahesh Rajashekhara } 75495c0217SMahesh Rajashekhara } 76495c0217SMahesh Rajashekhara 77495c0217SMahesh Rajashekhara if (mode & AAC_INT_MODE_SYNC) { 7811604612SMahesh Rajashekhara unsigned long sflags; 7911604612SMahesh Rajashekhara struct list_head *entry; 8011604612SMahesh Rajashekhara int send_it = 0; 8185d22bbfSMahesh Rajashekhara extern int aac_sync_mode; 8285d22bbfSMahesh Rajashekhara 83495c0217SMahesh Rajashekhara if (!aac_sync_mode && !dev->msi_enabled) { 84c5bebd82SMahesh Rajashekhara src_writel(dev, MUnit.ODR_C, bellbits); 85c5bebd82SMahesh Rajashekhara src_readl(dev, MUnit.ODR_C); 8685d22bbfSMahesh Rajashekhara } 8711604612SMahesh Rajashekhara 8811604612SMahesh Rajashekhara if (dev->sync_fib) { 8911604612SMahesh Rajashekhara if (dev->sync_fib->callback) 9011604612SMahesh Rajashekhara dev->sync_fib->callback(dev->sync_fib->callback_data, 9111604612SMahesh Rajashekhara dev->sync_fib); 9211604612SMahesh Rajashekhara spin_lock_irqsave(&dev->sync_fib->event_lock, sflags); 9311604612SMahesh Rajashekhara if (dev->sync_fib->flags & FIB_CONTEXT_FLAG_WAIT) { 9411604612SMahesh Rajashekhara dev->management_fib_count--; 95bc127d93SArnd Bergmann complete(&dev->sync_fib->event_wait); 9611604612SMahesh Rajashekhara } 97495c0217SMahesh Rajashekhara spin_unlock_irqrestore(&dev->sync_fib->event_lock, 98495c0217SMahesh Rajashekhara sflags); 9911604612SMahesh Rajashekhara spin_lock_irqsave(&dev->sync_lock, sflags); 10011604612SMahesh Rajashekhara if (!list_empty(&dev->sync_fib_list)) { 10111604612SMahesh Rajashekhara entry = dev->sync_fib_list.next; 102495c0217SMahesh Rajashekhara dev->sync_fib = list_entry(entry, 103495c0217SMahesh Rajashekhara struct fib, 104495c0217SMahesh Rajashekhara fiblink); 10511604612SMahesh Rajashekhara list_del(entry); 10611604612SMahesh Rajashekhara send_it = 1; 10711604612SMahesh Rajashekhara } else { 10811604612SMahesh Rajashekhara dev->sync_fib = NULL; 10911604612SMahesh Rajashekhara } 11011604612SMahesh Rajashekhara spin_unlock_irqrestore(&dev->sync_lock, sflags); 11111604612SMahesh Rajashekhara if (send_it) { 11211604612SMahesh Rajashekhara aac_adapter_sync_cmd(dev, SEND_SYNCHRONOUS_FIB, 113495c0217SMahesh Rajashekhara (u32)dev->sync_fib->hw_fib_pa, 114495c0217SMahesh Rajashekhara 0, 0, 0, 0, 0, 11511604612SMahesh Rajashekhara NULL, NULL, NULL, NULL, NULL); 11611604612SMahesh Rajashekhara } 11711604612SMahesh Rajashekhara } 118495c0217SMahesh Rajashekhara if (!dev->msi_enabled) 119495c0217SMahesh Rajashekhara mode = 0; 120495c0217SMahesh Rajashekhara 121e8b12f0fSMahesh Rajashekhara } 122e8b12f0fSMahesh Rajashekhara 123495c0217SMahesh Rajashekhara if (mode & AAC_INT_MODE_AIF) { 124495c0217SMahesh Rajashekhara /* handle AIF */ 1253ffd6c5aSRaghava Aditya Renukunta if (dev->sa_firmware) { 1263ffd6c5aSRaghava Aditya Renukunta u32 events = src_readl(dev, MUnit.SCR0); 1273ffd6c5aSRaghava Aditya Renukunta 1283ffd6c5aSRaghava Aditya Renukunta aac_intr_normal(dev, events, 1, 0, NULL); 1293ffd6c5aSRaghava Aditya Renukunta writel(events, &dev->IndexRegs->Mailbox[0]); 1303ffd6c5aSRaghava Aditya Renukunta src_writel(dev, MUnit.IDR, 1 << 23); 1313ffd6c5aSRaghava Aditya Renukunta } else { 1329cb62fa2SRaghava Aditya Renukunta if (dev->aif_thread && dev->fsa_dev) 133495c0217SMahesh Rajashekhara aac_intr_normal(dev, 0, 2, 0, NULL); 1343ffd6c5aSRaghava Aditya Renukunta } 135495c0217SMahesh Rajashekhara if (dev->msi_enabled) 136495c0217SMahesh Rajashekhara aac_src_access_devreg(dev, AAC_CLEAR_AIF_BIT); 137495c0217SMahesh Rajashekhara mode = 0; 138e8b12f0fSMahesh Rajashekhara } 139495c0217SMahesh Rajashekhara 140495c0217SMahesh Rajashekhara if (mode) { 141495c0217SMahesh Rajashekhara index = dev->host_rrq_idx[vector_no]; 142495c0217SMahesh Rajashekhara 143495c0217SMahesh Rajashekhara for (;;) { 144495c0217SMahesh Rajashekhara isFastResponse = 0; 145495c0217SMahesh Rajashekhara /* remove toggle bit (31) */ 1463ffd6c5aSRaghava Aditya Renukunta handle = le32_to_cpu((dev->host_rrq[index]) 1473ffd6c5aSRaghava Aditya Renukunta & 0x7fffffff); 1483ffd6c5aSRaghava Aditya Renukunta /* check fast response bits (30, 1) */ 149495c0217SMahesh Rajashekhara if (handle & 0x40000000) 150495c0217SMahesh Rajashekhara isFastResponse = 1; 151495c0217SMahesh Rajashekhara handle &= 0x0000ffff; 152495c0217SMahesh Rajashekhara if (handle == 0) 153495c0217SMahesh Rajashekhara break; 1543ffd6c5aSRaghava Aditya Renukunta handle >>= 2; 155495c0217SMahesh Rajashekhara if (dev->msi_enabled && dev->max_msix > 1) 156495c0217SMahesh Rajashekhara atomic_dec(&dev->rrq_outstanding[vector_no]); 1573ffd6c5aSRaghava Aditya Renukunta aac_intr_normal(dev, handle, 0, isFastResponse, NULL); 158495c0217SMahesh Rajashekhara dev->host_rrq[index++] = 0; 159495c0217SMahesh Rajashekhara if (index == (vector_no + 1) * dev->vector_cap) 160495c0217SMahesh Rajashekhara index = vector_no * dev->vector_cap; 161495c0217SMahesh Rajashekhara dev->host_rrq_idx[vector_no] = index; 162495c0217SMahesh Rajashekhara } 163495c0217SMahesh Rajashekhara mode = 0; 164495c0217SMahesh Rajashekhara } 165495c0217SMahesh Rajashekhara 166495c0217SMahesh Rajashekhara return IRQ_HANDLED; 167e8b12f0fSMahesh Rajashekhara } 168e8b12f0fSMahesh Rajashekhara 169e8b12f0fSMahesh Rajashekhara /** 170e8b12f0fSMahesh Rajashekhara * aac_src_disable_interrupt - Disable interrupts 171e8b12f0fSMahesh Rajashekhara * @dev: Adapter 172e8b12f0fSMahesh Rajashekhara */ 173e8b12f0fSMahesh Rajashekhara 174e8b12f0fSMahesh Rajashekhara static void aac_src_disable_interrupt(struct aac_dev *dev) 175e8b12f0fSMahesh Rajashekhara { 176e8b12f0fSMahesh Rajashekhara src_writel(dev, MUnit.OIMR, dev->OIMR = 0xffffffff); 177e8b12f0fSMahesh Rajashekhara } 178e8b12f0fSMahesh Rajashekhara 179e8b12f0fSMahesh Rajashekhara /** 180e8b12f0fSMahesh Rajashekhara * aac_src_enable_interrupt_message - Enable interrupts 181e8b12f0fSMahesh Rajashekhara * @dev: Adapter 182e8b12f0fSMahesh Rajashekhara */ 183e8b12f0fSMahesh Rajashekhara 184e8b12f0fSMahesh Rajashekhara static void aac_src_enable_interrupt_message(struct aac_dev *dev) 185e8b12f0fSMahesh Rajashekhara { 186495c0217SMahesh Rajashekhara aac_src_access_devreg(dev, AAC_ENABLE_INTERRUPT); 187e8b12f0fSMahesh Rajashekhara } 188e8b12f0fSMahesh Rajashekhara 189e8b12f0fSMahesh Rajashekhara /** 190e8b12f0fSMahesh Rajashekhara * src_sync_cmd - send a command and wait 191e8b12f0fSMahesh Rajashekhara * @dev: Adapter 192e8b12f0fSMahesh Rajashekhara * @command: Command to execute 193e8b12f0fSMahesh Rajashekhara * @p1: first parameter 194e8b12f0fSMahesh Rajashekhara * @ret: adapter status 195e8b12f0fSMahesh Rajashekhara * 196e8b12f0fSMahesh Rajashekhara * This routine will send a synchronous command to the adapter and wait 197e8b12f0fSMahesh Rajashekhara * for its completion. 198e8b12f0fSMahesh Rajashekhara */ 199e8b12f0fSMahesh Rajashekhara 200e8b12f0fSMahesh Rajashekhara static int src_sync_cmd(struct aac_dev *dev, u32 command, 201e8b12f0fSMahesh Rajashekhara u32 p1, u32 p2, u32 p3, u32 p4, u32 p5, u32 p6, 202e8b12f0fSMahesh Rajashekhara u32 *status, u32 * r1, u32 * r2, u32 * r3, u32 * r4) 203e8b12f0fSMahesh Rajashekhara { 204e8b12f0fSMahesh Rajashekhara unsigned long start; 205dafde947SMahesh Rajashekhara unsigned long delay; 206e8b12f0fSMahesh Rajashekhara int ok; 207e8b12f0fSMahesh Rajashekhara 208e8b12f0fSMahesh Rajashekhara /* 209e8b12f0fSMahesh Rajashekhara * Write the command into Mailbox 0 210e8b12f0fSMahesh Rajashekhara */ 211e8b12f0fSMahesh Rajashekhara writel(command, &dev->IndexRegs->Mailbox[0]); 212e8b12f0fSMahesh Rajashekhara /* 213e8b12f0fSMahesh Rajashekhara * Write the parameters into Mailboxes 1 - 6 214e8b12f0fSMahesh Rajashekhara */ 215e8b12f0fSMahesh Rajashekhara writel(p1, &dev->IndexRegs->Mailbox[1]); 216e8b12f0fSMahesh Rajashekhara writel(p2, &dev->IndexRegs->Mailbox[2]); 217e8b12f0fSMahesh Rajashekhara writel(p3, &dev->IndexRegs->Mailbox[3]); 218e8b12f0fSMahesh Rajashekhara writel(p4, &dev->IndexRegs->Mailbox[4]); 219e8b12f0fSMahesh Rajashekhara 220e8b12f0fSMahesh Rajashekhara /* 221e8b12f0fSMahesh Rajashekhara * Clear the synch command doorbell to start on a clean slate. 222e8b12f0fSMahesh Rajashekhara */ 223495c0217SMahesh Rajashekhara if (!dev->msi_enabled) 224495c0217SMahesh Rajashekhara src_writel(dev, 225495c0217SMahesh Rajashekhara MUnit.ODR_C, 226495c0217SMahesh Rajashekhara OUTBOUNDDOORBELL_0 << SRC_ODR_SHIFT); 227e8b12f0fSMahesh Rajashekhara 228e8b12f0fSMahesh Rajashekhara /* 229e8b12f0fSMahesh Rajashekhara * Disable doorbell interrupts 230e8b12f0fSMahesh Rajashekhara */ 231e8b12f0fSMahesh Rajashekhara src_writel(dev, MUnit.OIMR, dev->OIMR = 0xffffffff); 232e8b12f0fSMahesh Rajashekhara 233e8b12f0fSMahesh Rajashekhara /* 234e8b12f0fSMahesh Rajashekhara * Force the completion of the mask register write before issuing 235e8b12f0fSMahesh Rajashekhara * the interrupt. 236e8b12f0fSMahesh Rajashekhara */ 237e8b12f0fSMahesh Rajashekhara src_readl(dev, MUnit.OIMR); 238e8b12f0fSMahesh Rajashekhara 239e8b12f0fSMahesh Rajashekhara /* 240e8b12f0fSMahesh Rajashekhara * Signal that there is a new synch command 241e8b12f0fSMahesh Rajashekhara */ 242e8b12f0fSMahesh Rajashekhara src_writel(dev, MUnit.IDR, INBOUNDDOORBELL_0 << SRC_IDR_SHIFT); 243e8b12f0fSMahesh Rajashekhara 24444f1ce7dSRaghava Aditya Renukunta if ((!dev->sync_mode || command != SEND_SYNCHRONOUS_FIB) && 24544f1ce7dSRaghava Aditya Renukunta !dev->in_soft_reset) { 246e8b12f0fSMahesh Rajashekhara ok = 0; 247e8b12f0fSMahesh Rajashekhara start = jiffies; 248e8b12f0fSMahesh Rajashekhara 249dafde947SMahesh Rajashekhara if (command == IOP_RESET_ALWAYS) { 250dafde947SMahesh Rajashekhara /* Wait up to 10 sec */ 251dafde947SMahesh Rajashekhara delay = 10*HZ; 252dafde947SMahesh Rajashekhara } else { 253dafde947SMahesh Rajashekhara /* Wait up to 5 minutes */ 254dafde947SMahesh Rajashekhara delay = 300*HZ; 255dafde947SMahesh Rajashekhara } 256dafde947SMahesh Rajashekhara while (time_before(jiffies, start+delay)) { 25711604612SMahesh Rajashekhara udelay(5); /* Delay 5 microseconds to let Mon960 get info. */ 25811604612SMahesh Rajashekhara /* 25911604612SMahesh Rajashekhara * Mon960 will set doorbell0 bit when it has completed the command. 260e8b12f0fSMahesh Rajashekhara */ 261495c0217SMahesh Rajashekhara if (aac_src_get_sync_status(dev) & OUTBOUNDDOORBELL_0) { 26211604612SMahesh Rajashekhara /* 26311604612SMahesh Rajashekhara * Clear the doorbell. 26411604612SMahesh Rajashekhara */ 265495c0217SMahesh Rajashekhara if (dev->msi_enabled) 266495c0217SMahesh Rajashekhara aac_src_access_devreg(dev, 267495c0217SMahesh Rajashekhara AAC_CLEAR_SYNC_BIT); 268495c0217SMahesh Rajashekhara else 269495c0217SMahesh Rajashekhara src_writel(dev, 270495c0217SMahesh Rajashekhara MUnit.ODR_C, 271495c0217SMahesh Rajashekhara OUTBOUNDDOORBELL_0 << SRC_ODR_SHIFT); 272e8b12f0fSMahesh Rajashekhara ok = 1; 273e8b12f0fSMahesh Rajashekhara break; 274e8b12f0fSMahesh Rajashekhara } 27511604612SMahesh Rajashekhara /* 27611604612SMahesh Rajashekhara * Yield the processor in case we are slow 27711604612SMahesh Rajashekhara */ 278e8b12f0fSMahesh Rajashekhara msleep(1); 279e8b12f0fSMahesh Rajashekhara } 280e8b12f0fSMahesh Rajashekhara if (unlikely(ok != 1)) { 28111604612SMahesh Rajashekhara /* 28211604612SMahesh Rajashekhara * Restore interrupt mask even though we timed out 28311604612SMahesh Rajashekhara */ 284e8b12f0fSMahesh Rajashekhara aac_adapter_enable_int(dev); 285e8b12f0fSMahesh Rajashekhara return -ETIMEDOUT; 286e8b12f0fSMahesh Rajashekhara } 28711604612SMahesh Rajashekhara /* 28811604612SMahesh Rajashekhara * Pull the synch status from Mailbox 0. 28911604612SMahesh Rajashekhara */ 290e8b12f0fSMahesh Rajashekhara if (status) 291e8b12f0fSMahesh Rajashekhara *status = readl(&dev->IndexRegs->Mailbox[0]); 292e8b12f0fSMahesh Rajashekhara if (r1) 293e8b12f0fSMahesh Rajashekhara *r1 = readl(&dev->IndexRegs->Mailbox[1]); 294e8b12f0fSMahesh Rajashekhara if (r2) 295e8b12f0fSMahesh Rajashekhara *r2 = readl(&dev->IndexRegs->Mailbox[2]); 296e8b12f0fSMahesh Rajashekhara if (r3) 297e8b12f0fSMahesh Rajashekhara *r3 = readl(&dev->IndexRegs->Mailbox[3]); 298e8b12f0fSMahesh Rajashekhara if (r4) 299e8b12f0fSMahesh Rajashekhara *r4 = readl(&dev->IndexRegs->Mailbox[4]); 300495c0217SMahesh Rajashekhara if (command == GET_COMM_PREFERRED_SETTINGS) 301495c0217SMahesh Rajashekhara dev->max_msix = 302495c0217SMahesh Rajashekhara readl(&dev->IndexRegs->Mailbox[5]) & 0xFFFF; 30311604612SMahesh Rajashekhara /* 30411604612SMahesh Rajashekhara * Clear the synch command doorbell. 30511604612SMahesh Rajashekhara */ 306495c0217SMahesh Rajashekhara if (!dev->msi_enabled) 307495c0217SMahesh Rajashekhara src_writel(dev, 308495c0217SMahesh Rajashekhara MUnit.ODR_C, 309495c0217SMahesh Rajashekhara OUTBOUNDDOORBELL_0 << SRC_ODR_SHIFT); 31011604612SMahesh Rajashekhara } 311e8b12f0fSMahesh Rajashekhara 31211604612SMahesh Rajashekhara /* 31311604612SMahesh Rajashekhara * Restore interrupt mask 31411604612SMahesh Rajashekhara */ 315e8b12f0fSMahesh Rajashekhara aac_adapter_enable_int(dev); 316e8b12f0fSMahesh Rajashekhara return 0; 317e8b12f0fSMahesh Rajashekhara } 318e8b12f0fSMahesh Rajashekhara 319e8b12f0fSMahesh Rajashekhara /** 320e8b12f0fSMahesh Rajashekhara * aac_src_interrupt_adapter - interrupt adapter 321e8b12f0fSMahesh Rajashekhara * @dev: Adapter 322e8b12f0fSMahesh Rajashekhara * 323e8b12f0fSMahesh Rajashekhara * Send an interrupt to the i960 and breakpoint it. 324e8b12f0fSMahesh Rajashekhara */ 325e8b12f0fSMahesh Rajashekhara 326e8b12f0fSMahesh Rajashekhara static void aac_src_interrupt_adapter(struct aac_dev *dev) 327e8b12f0fSMahesh Rajashekhara { 328e8b12f0fSMahesh Rajashekhara src_sync_cmd(dev, BREAKPOINT_REQUEST, 329e8b12f0fSMahesh Rajashekhara 0, 0, 0, 0, 0, 0, 330e8b12f0fSMahesh Rajashekhara NULL, NULL, NULL, NULL, NULL); 331e8b12f0fSMahesh Rajashekhara } 332e8b12f0fSMahesh Rajashekhara 333e8b12f0fSMahesh Rajashekhara /** 334e8b12f0fSMahesh Rajashekhara * aac_src_notify_adapter - send an event to the adapter 335e8b12f0fSMahesh Rajashekhara * @dev: Adapter 336e8b12f0fSMahesh Rajashekhara * @event: Event to send 337e8b12f0fSMahesh Rajashekhara * 338e8b12f0fSMahesh Rajashekhara * Notify the i960 that something it probably cares about has 339e8b12f0fSMahesh Rajashekhara * happened. 340e8b12f0fSMahesh Rajashekhara */ 341e8b12f0fSMahesh Rajashekhara 342e8b12f0fSMahesh Rajashekhara static void aac_src_notify_adapter(struct aac_dev *dev, u32 event) 343e8b12f0fSMahesh Rajashekhara { 344e8b12f0fSMahesh Rajashekhara switch (event) { 345e8b12f0fSMahesh Rajashekhara 346e8b12f0fSMahesh Rajashekhara case AdapNormCmdQue: 347e8b12f0fSMahesh Rajashekhara src_writel(dev, MUnit.ODR_C, 348e8b12f0fSMahesh Rajashekhara INBOUNDDOORBELL_1 << SRC_ODR_SHIFT); 349e8b12f0fSMahesh Rajashekhara break; 350e8b12f0fSMahesh Rajashekhara case HostNormRespNotFull: 351e8b12f0fSMahesh Rajashekhara src_writel(dev, MUnit.ODR_C, 352e8b12f0fSMahesh Rajashekhara INBOUNDDOORBELL_4 << SRC_ODR_SHIFT); 353e8b12f0fSMahesh Rajashekhara break; 354e8b12f0fSMahesh Rajashekhara case AdapNormRespQue: 355e8b12f0fSMahesh Rajashekhara src_writel(dev, MUnit.ODR_C, 356e8b12f0fSMahesh Rajashekhara INBOUNDDOORBELL_2 << SRC_ODR_SHIFT); 357e8b12f0fSMahesh Rajashekhara break; 358e8b12f0fSMahesh Rajashekhara case HostNormCmdNotFull: 359e8b12f0fSMahesh Rajashekhara src_writel(dev, MUnit.ODR_C, 360e8b12f0fSMahesh Rajashekhara INBOUNDDOORBELL_3 << SRC_ODR_SHIFT); 361e8b12f0fSMahesh Rajashekhara break; 362e8b12f0fSMahesh Rajashekhara case FastIo: 363e8b12f0fSMahesh Rajashekhara src_writel(dev, MUnit.ODR_C, 364e8b12f0fSMahesh Rajashekhara INBOUNDDOORBELL_6 << SRC_ODR_SHIFT); 365e8b12f0fSMahesh Rajashekhara break; 366e8b12f0fSMahesh Rajashekhara case AdapPrintfDone: 367e8b12f0fSMahesh Rajashekhara src_writel(dev, MUnit.ODR_C, 368e8b12f0fSMahesh Rajashekhara INBOUNDDOORBELL_5 << SRC_ODR_SHIFT); 369e8b12f0fSMahesh Rajashekhara break; 370e8b12f0fSMahesh Rajashekhara default: 371e8b12f0fSMahesh Rajashekhara BUG(); 372e8b12f0fSMahesh Rajashekhara break; 373e8b12f0fSMahesh Rajashekhara } 374e8b12f0fSMahesh Rajashekhara } 375e8b12f0fSMahesh Rajashekhara 376e8b12f0fSMahesh Rajashekhara /** 377e8b12f0fSMahesh Rajashekhara * aac_src_start_adapter - activate adapter 378e8b12f0fSMahesh Rajashekhara * @dev: Adapter 379e8b12f0fSMahesh Rajashekhara * 380e8b12f0fSMahesh Rajashekhara * Start up processing on an i960 based AAC adapter 381e8b12f0fSMahesh Rajashekhara */ 382e8b12f0fSMahesh Rajashekhara 383e8b12f0fSMahesh Rajashekhara static void aac_src_start_adapter(struct aac_dev *dev) 384e8b12f0fSMahesh Rajashekhara { 385d1ef4da8SRaghava Aditya Renukunta union aac_init *init; 386495c0217SMahesh Rajashekhara int i; 387e8b12f0fSMahesh Rajashekhara 38885d22bbfSMahesh Rajashekhara /* reset host_rrq_idx first */ 389495c0217SMahesh Rajashekhara for (i = 0; i < dev->max_msix; i++) { 390495c0217SMahesh Rajashekhara dev->host_rrq_idx[i] = i * dev->vector_cap; 391495c0217SMahesh Rajashekhara atomic_set(&dev->rrq_outstanding[i], 0); 392495c0217SMahesh Rajashekhara } 3933ffd6c5aSRaghava Aditya Renukunta atomic_set(&dev->msix_counter, 0); 394495c0217SMahesh Rajashekhara dev->fibs_pushed_no = 0; 39585d22bbfSMahesh Rajashekhara 396e8b12f0fSMahesh Rajashekhara init = dev->init; 397d1ef4da8SRaghava Aditya Renukunta if (dev->comm_interface == AAC_COMM_MESSAGE_TYPE3) { 39838150f7aSArnd Bergmann init->r8.host_elapsed_seconds = 39938150f7aSArnd Bergmann cpu_to_le32(ktime_get_real_seconds()); 400d1ef4da8SRaghava Aditya Renukunta src_sync_cmd(dev, INIT_STRUCT_BASE_ADDRESS, 40180a94bb3SArnd Bergmann lower_32_bits(dev->init_pa), 40280a94bb3SArnd Bergmann upper_32_bits(dev->init_pa), 403d1ef4da8SRaghava Aditya Renukunta sizeof(struct _r8) + 404d1ef4da8SRaghava Aditya Renukunta (AAC_MAX_HRRQ - 1) * sizeof(struct _rrq), 405d1ef4da8SRaghava Aditya Renukunta 0, 0, 0, NULL, NULL, NULL, NULL, NULL); 406d1ef4da8SRaghava Aditya Renukunta } else { 40738150f7aSArnd Bergmann init->r7.host_elapsed_seconds = 40838150f7aSArnd Bergmann cpu_to_le32(ktime_get_real_seconds()); 409d1ef4da8SRaghava Aditya Renukunta // We can only use a 32 bit address here 410d1ef4da8SRaghava Aditya Renukunta src_sync_cmd(dev, INIT_STRUCT_BASE_ADDRESS, 411d1ef4da8SRaghava Aditya Renukunta (u32)(ulong)dev->init_pa, 0, 0, 0, 0, 0, 412d1ef4da8SRaghava Aditya Renukunta NULL, NULL, NULL, NULL, NULL); 413d1ef4da8SRaghava Aditya Renukunta } 414e8b12f0fSMahesh Rajashekhara 415e8b12f0fSMahesh Rajashekhara } 416e8b12f0fSMahesh Rajashekhara 417e8b12f0fSMahesh Rajashekhara /** 418e8b12f0fSMahesh Rajashekhara * aac_src_check_health 419e8b12f0fSMahesh Rajashekhara * @dev: device to check if healthy 420e8b12f0fSMahesh Rajashekhara * 421e8b12f0fSMahesh Rajashekhara * Will attempt to determine if the specified adapter is alive and 422e8b12f0fSMahesh Rajashekhara * capable of handling requests, returning 0 if alive. 423e8b12f0fSMahesh Rajashekhara */ 424e8b12f0fSMahesh Rajashekhara static int aac_src_check_health(struct aac_dev *dev) 425e8b12f0fSMahesh Rajashekhara { 426e8b12f0fSMahesh Rajashekhara u32 status = src_readl(dev, MUnit.OMR); 427e8b12f0fSMahesh Rajashekhara 428e8b12f0fSMahesh Rajashekhara /* 429e8b12f0fSMahesh Rajashekhara * Check to see if the board panic'd. 430e8b12f0fSMahesh Rajashekhara */ 431e8b12f0fSMahesh Rajashekhara if (unlikely(status & KERNEL_PANIC)) 432c421530bSRaghava Aditya Renukunta goto err_blink; 433c421530bSRaghava Aditya Renukunta 434c421530bSRaghava Aditya Renukunta /* 435c421530bSRaghava Aditya Renukunta * Check to see if the board failed any self tests. 436c421530bSRaghava Aditya Renukunta */ 437c421530bSRaghava Aditya Renukunta if (unlikely(status & SELF_TEST_FAILED)) 438c421530bSRaghava Aditya Renukunta goto err_out; 439c421530bSRaghava Aditya Renukunta 440c421530bSRaghava Aditya Renukunta /* 441c421530bSRaghava Aditya Renukunta * Check to see if the board failed any self tests. 442c421530bSRaghava Aditya Renukunta */ 443c421530bSRaghava Aditya Renukunta if (unlikely(status & MONITOR_PANIC)) 444c421530bSRaghava Aditya Renukunta goto err_out; 445c421530bSRaghava Aditya Renukunta 446e8b12f0fSMahesh Rajashekhara /* 447e8b12f0fSMahesh Rajashekhara * Wait for the adapter to be up and running. 448e8b12f0fSMahesh Rajashekhara */ 449e8b12f0fSMahesh Rajashekhara if (unlikely(!(status & KERNEL_UP_AND_RUNNING))) 450e8b12f0fSMahesh Rajashekhara return -3; 451e8b12f0fSMahesh Rajashekhara /* 452e8b12f0fSMahesh Rajashekhara * Everything is OK 453e8b12f0fSMahesh Rajashekhara */ 454e8b12f0fSMahesh Rajashekhara return 0; 455c421530bSRaghava Aditya Renukunta 456c421530bSRaghava Aditya Renukunta err_out: 457c421530bSRaghava Aditya Renukunta return -1; 458c421530bSRaghava Aditya Renukunta 459c421530bSRaghava Aditya Renukunta err_blink: 460934767c5SRaghava Aditya Renukunta return (status >> 16) & 0xFF; 461e8b12f0fSMahesh Rajashekhara } 462e8b12f0fSMahesh Rajashekhara 463423400e6SRaghava Aditya Renukunta static inline u32 aac_get_vector(struct aac_dev *dev) 464423400e6SRaghava Aditya Renukunta { 465423400e6SRaghava Aditya Renukunta return atomic_inc_return(&dev->msix_counter)%dev->max_msix; 466423400e6SRaghava Aditya Renukunta } 467423400e6SRaghava Aditya Renukunta 468e8b12f0fSMahesh Rajashekhara /** 469e8b12f0fSMahesh Rajashekhara * aac_src_deliver_message 470e8b12f0fSMahesh Rajashekhara * @fib: fib to issue 471e8b12f0fSMahesh Rajashekhara * 472e8b12f0fSMahesh Rajashekhara * Will send a fib, returning 0 if successful. 473e8b12f0fSMahesh Rajashekhara */ 474e8b12f0fSMahesh Rajashekhara static int aac_src_deliver_message(struct fib *fib) 475e8b12f0fSMahesh Rajashekhara { 476e8b12f0fSMahesh Rajashekhara struct aac_dev *dev = fib->dev; 477e8b12f0fSMahesh Rajashekhara struct aac_queue *q = &dev->queues->queue[AdapNormCmdQueue]; 478e8b12f0fSMahesh Rajashekhara u32 fibsize; 479b5f1758fSBen Collins dma_addr_t address; 480e8b12f0fSMahesh Rajashekhara struct aac_fib_xporthdr *pFibX; 481423400e6SRaghava Aditya Renukunta int native_hba; 482c6992781SMahesh Rajashekhara #if !defined(writeq) 483c6992781SMahesh Rajashekhara unsigned long flags; 484c6992781SMahesh Rajashekhara #endif 485c6992781SMahesh Rajashekhara 4863f4ce057SRaghava Aditya Renukunta u16 vector_no; 487e8b12f0fSMahesh Rajashekhara 488ef616233SMahesh Rajashekhara atomic_inc(&q->numpending); 489e8b12f0fSMahesh Rajashekhara 490423400e6SRaghava Aditya Renukunta native_hba = (fib->flags & FIB_CONTEXT_FLAG_NATIVE_HBA) ? 1 : 0; 491423400e6SRaghava Aditya Renukunta 492423400e6SRaghava Aditya Renukunta 493423400e6SRaghava Aditya Renukunta if (dev->msi_enabled && dev->max_msix > 1 && 494423400e6SRaghava Aditya Renukunta (native_hba || fib->hw_fib_va->header.Command != AifRequest)) { 495423400e6SRaghava Aditya Renukunta 496423400e6SRaghava Aditya Renukunta if ((dev->comm_interface == AAC_COMM_MESSAGE_TYPE3) 497423400e6SRaghava Aditya Renukunta && dev->sa_firmware) 498423400e6SRaghava Aditya Renukunta vector_no = aac_get_vector(dev); 499423400e6SRaghava Aditya Renukunta else 5003f4ce057SRaghava Aditya Renukunta vector_no = fib->vector_no; 501423400e6SRaghava Aditya Renukunta 502423400e6SRaghava Aditya Renukunta if (native_hba) { 503954b2b5aSRaghava Aditya Renukunta if (fib->flags & FIB_CONTEXT_FLAG_NATIVE_HBA_TMF) { 504954b2b5aSRaghava Aditya Renukunta struct aac_hba_tm_req *tm_req; 505954b2b5aSRaghava Aditya Renukunta 506954b2b5aSRaghava Aditya Renukunta tm_req = (struct aac_hba_tm_req *) 507954b2b5aSRaghava Aditya Renukunta fib->hw_fib_va; 508954b2b5aSRaghava Aditya Renukunta if (tm_req->iu_type == 509954b2b5aSRaghava Aditya Renukunta HBA_IU_TYPE_SCSI_TM_REQ) { 510954b2b5aSRaghava Aditya Renukunta ((struct aac_hba_tm_req *) 511954b2b5aSRaghava Aditya Renukunta fib->hw_fib_va)->reply_qid 512423400e6SRaghava Aditya Renukunta = vector_no; 513954b2b5aSRaghava Aditya Renukunta ((struct aac_hba_tm_req *) 514954b2b5aSRaghava Aditya Renukunta fib->hw_fib_va)->request_id 515423400e6SRaghava Aditya Renukunta += (vector_no << 16); 516423400e6SRaghava Aditya Renukunta } else { 517954b2b5aSRaghava Aditya Renukunta ((struct aac_hba_reset_req *) 518954b2b5aSRaghava Aditya Renukunta fib->hw_fib_va)->reply_qid 519954b2b5aSRaghava Aditya Renukunta = vector_no; 520954b2b5aSRaghava Aditya Renukunta ((struct aac_hba_reset_req *) 521954b2b5aSRaghava Aditya Renukunta fib->hw_fib_va)->request_id 522954b2b5aSRaghava Aditya Renukunta += (vector_no << 16); 523954b2b5aSRaghava Aditya Renukunta } 524954b2b5aSRaghava Aditya Renukunta } else { 525954b2b5aSRaghava Aditya Renukunta ((struct aac_hba_cmd_req *) 526954b2b5aSRaghava Aditya Renukunta fib->hw_fib_va)->reply_qid 527954b2b5aSRaghava Aditya Renukunta = vector_no; 528954b2b5aSRaghava Aditya Renukunta ((struct aac_hba_cmd_req *) 529954b2b5aSRaghava Aditya Renukunta fib->hw_fib_va)->request_id 530954b2b5aSRaghava Aditya Renukunta += (vector_no << 16); 531954b2b5aSRaghava Aditya Renukunta } 532954b2b5aSRaghava Aditya Renukunta } else { 533495c0217SMahesh Rajashekhara fib->hw_fib_va->header.Handle += (vector_no << 16); 534423400e6SRaghava Aditya Renukunta } 5353f4ce057SRaghava Aditya Renukunta } else { 5363f4ce057SRaghava Aditya Renukunta vector_no = 0; 537495c0217SMahesh Rajashekhara } 538495c0217SMahesh Rajashekhara 5393f4ce057SRaghava Aditya Renukunta atomic_inc(&dev->rrq_outstanding[vector_no]); 5403f4ce057SRaghava Aditya Renukunta 541423400e6SRaghava Aditya Renukunta if (native_hba) { 542423400e6SRaghava Aditya Renukunta address = fib->hw_fib_pa; 543423400e6SRaghava Aditya Renukunta fibsize = (fib->hbacmd_size + 127) / 128 - 1; 544423400e6SRaghava Aditya Renukunta if (fibsize > 31) 545423400e6SRaghava Aditya Renukunta fibsize = 31; 546423400e6SRaghava Aditya Renukunta address |= fibsize; 547423400e6SRaghava Aditya Renukunta #if defined(writeq) 548423400e6SRaghava Aditya Renukunta src_writeq(dev, MUnit.IQN_L, (u64)address); 549423400e6SRaghava Aditya Renukunta #else 550423400e6SRaghava Aditya Renukunta spin_lock_irqsave(&fib->dev->iq_lock, flags); 551423400e6SRaghava Aditya Renukunta src_writel(dev, MUnit.IQN_H, 552423400e6SRaghava Aditya Renukunta upper_32_bits(address) & 0xffffffff); 553423400e6SRaghava Aditya Renukunta src_writel(dev, MUnit.IQN_L, address & 0xffffffff); 554423400e6SRaghava Aditya Renukunta spin_unlock_irqrestore(&fib->dev->iq_lock, flags); 555423400e6SRaghava Aditya Renukunta #endif 556423400e6SRaghava Aditya Renukunta } else { 557423400e6SRaghava Aditya Renukunta if (dev->comm_interface == AAC_COMM_MESSAGE_TYPE2 || 558423400e6SRaghava Aditya Renukunta dev->comm_interface == AAC_COMM_MESSAGE_TYPE3) { 55985d22bbfSMahesh Rajashekhara /* Calculate the amount to the fibsize bits */ 560423400e6SRaghava Aditya Renukunta fibsize = (le16_to_cpu(fib->hw_fib_va->header.Size) 561423400e6SRaghava Aditya Renukunta + 127) / 128 - 1; 56285d22bbfSMahesh Rajashekhara /* New FIB header, 32-bit */ 56385d22bbfSMahesh Rajashekhara address = fib->hw_fib_pa; 56485d22bbfSMahesh Rajashekhara fib->hw_fib_va->header.StructType = FIB_MAGIC2; 565423400e6SRaghava Aditya Renukunta fib->hw_fib_va->header.SenderFibAddress = 566423400e6SRaghava Aditya Renukunta cpu_to_le32((u32)address); 56785d22bbfSMahesh Rajashekhara fib->hw_fib_va->header.u.TimeStamp = 0; 56880a94bb3SArnd Bergmann WARN_ON(upper_32_bits(address) != 0L); 56985d22bbfSMahesh Rajashekhara } else { 570e8b12f0fSMahesh Rajashekhara /* Calculate the amount to the fibsize bits */ 571423400e6SRaghava Aditya Renukunta fibsize = (sizeof(struct aac_fib_xporthdr) + 572423400e6SRaghava Aditya Renukunta le16_to_cpu(fib->hw_fib_va->header.Size) 573423400e6SRaghava Aditya Renukunta + 127) / 128 - 1; 574e8b12f0fSMahesh Rajashekhara /* Fill XPORT header */ 575423400e6SRaghava Aditya Renukunta pFibX = (struct aac_fib_xporthdr *) 576423400e6SRaghava Aditya Renukunta ((unsigned char *)fib->hw_fib_va - 577423400e6SRaghava Aditya Renukunta sizeof(struct aac_fib_xporthdr)); 578423400e6SRaghava Aditya Renukunta pFibX->Handle = fib->hw_fib_va->header.Handle; 579423400e6SRaghava Aditya Renukunta pFibX->HostAddress = 580423400e6SRaghava Aditya Renukunta cpu_to_le64((u64)fib->hw_fib_pa); 581423400e6SRaghava Aditya Renukunta pFibX->Size = cpu_to_le32( 582423400e6SRaghava Aditya Renukunta le16_to_cpu(fib->hw_fib_va->header.Size)); 583423400e6SRaghava Aditya Renukunta address = fib->hw_fib_pa - 584423400e6SRaghava Aditya Renukunta (u64)sizeof(struct aac_fib_xporthdr); 58585d22bbfSMahesh Rajashekhara } 586423400e6SRaghava Aditya Renukunta if (fibsize > 31) 587423400e6SRaghava Aditya Renukunta fibsize = 31; 588423400e6SRaghava Aditya Renukunta address |= fibsize; 589423400e6SRaghava Aditya Renukunta 590c6992781SMahesh Rajashekhara #if defined(writeq) 591c6992781SMahesh Rajashekhara src_writeq(dev, MUnit.IQ_L, (u64)address); 592c6992781SMahesh Rajashekhara #else 593c6992781SMahesh Rajashekhara spin_lock_irqsave(&fib->dev->iq_lock, flags); 594423400e6SRaghava Aditya Renukunta src_writel(dev, MUnit.IQ_H, 595423400e6SRaghava Aditya Renukunta upper_32_bits(address) & 0xffffffff); 596b5f1758fSBen Collins src_writel(dev, MUnit.IQ_L, address & 0xffffffff); 597c6992781SMahesh Rajashekhara spin_unlock_irqrestore(&fib->dev->iq_lock, flags); 598c6992781SMahesh Rajashekhara #endif 599423400e6SRaghava Aditya Renukunta } 600e8b12f0fSMahesh Rajashekhara return 0; 601e8b12f0fSMahesh Rajashekhara } 602e8b12f0fSMahesh Rajashekhara 603e8b12f0fSMahesh Rajashekhara /** 604e8b12f0fSMahesh Rajashekhara * aac_src_ioremap 605e8b12f0fSMahesh Rajashekhara * @size: mapping resize request 606e8b12f0fSMahesh Rajashekhara * 607e8b12f0fSMahesh Rajashekhara */ 608e8b12f0fSMahesh Rajashekhara static int aac_src_ioremap(struct aac_dev *dev, u32 size) 609e8b12f0fSMahesh Rajashekhara { 610e8b12f0fSMahesh Rajashekhara if (!size) { 61171552505STomas Henzl iounmap(dev->regs.src.bar1); 61271552505STomas Henzl dev->regs.src.bar1 = NULL; 613e8b12f0fSMahesh Rajashekhara iounmap(dev->regs.src.bar0); 61411604612SMahesh Rajashekhara dev->base = dev->regs.src.bar0 = NULL; 615e8b12f0fSMahesh Rajashekhara return 0; 616e8b12f0fSMahesh Rajashekhara } 617e8b12f0fSMahesh Rajashekhara dev->regs.src.bar1 = ioremap(pci_resource_start(dev->pdev, 2), 618e8b12f0fSMahesh Rajashekhara AAC_MIN_SRC_BAR1_SIZE); 619e8b12f0fSMahesh Rajashekhara dev->base = NULL; 620e8b12f0fSMahesh Rajashekhara if (dev->regs.src.bar1 == NULL) 621e8b12f0fSMahesh Rajashekhara return -1; 622ff08784bSBen Collins dev->base = dev->regs.src.bar0 = ioremap(dev->base_start, size); 623e8b12f0fSMahesh Rajashekhara if (dev->base == NULL) { 624e8b12f0fSMahesh Rajashekhara iounmap(dev->regs.src.bar1); 625e8b12f0fSMahesh Rajashekhara dev->regs.src.bar1 = NULL; 626e8b12f0fSMahesh Rajashekhara return -1; 627e8b12f0fSMahesh Rajashekhara } 628e8b12f0fSMahesh Rajashekhara dev->IndexRegs = &((struct src_registers __iomem *) 62911604612SMahesh Rajashekhara dev->base)->u.tupelo.IndexRegs; 63011604612SMahesh Rajashekhara return 0; 63111604612SMahesh Rajashekhara } 63211604612SMahesh Rajashekhara 63311604612SMahesh Rajashekhara /** 63411604612SMahesh Rajashekhara * aac_srcv_ioremap 63511604612SMahesh Rajashekhara * @size: mapping resize request 63611604612SMahesh Rajashekhara * 63711604612SMahesh Rajashekhara */ 63811604612SMahesh Rajashekhara static int aac_srcv_ioremap(struct aac_dev *dev, u32 size) 63911604612SMahesh Rajashekhara { 64011604612SMahesh Rajashekhara if (!size) { 64111604612SMahesh Rajashekhara iounmap(dev->regs.src.bar0); 64211604612SMahesh Rajashekhara dev->base = dev->regs.src.bar0 = NULL; 64311604612SMahesh Rajashekhara return 0; 64411604612SMahesh Rajashekhara } 6453ffd6c5aSRaghava Aditya Renukunta 6463ffd6c5aSRaghava Aditya Renukunta dev->regs.src.bar1 = 6473ffd6c5aSRaghava Aditya Renukunta ioremap(pci_resource_start(dev->pdev, 2), AAC_MIN_SRCV_BAR1_SIZE); 6483ffd6c5aSRaghava Aditya Renukunta dev->base = NULL; 6493ffd6c5aSRaghava Aditya Renukunta if (dev->regs.src.bar1 == NULL) 65011604612SMahesh Rajashekhara return -1; 6513ffd6c5aSRaghava Aditya Renukunta dev->base = dev->regs.src.bar0 = ioremap(dev->base_start, size); 6523ffd6c5aSRaghava Aditya Renukunta if (dev->base == NULL) { 6533ffd6c5aSRaghava Aditya Renukunta iounmap(dev->regs.src.bar1); 6543ffd6c5aSRaghava Aditya Renukunta dev->regs.src.bar1 = NULL; 6553ffd6c5aSRaghava Aditya Renukunta return -1; 6563ffd6c5aSRaghava Aditya Renukunta } 65711604612SMahesh Rajashekhara dev->IndexRegs = &((struct src_registers __iomem *) 65811604612SMahesh Rajashekhara dev->base)->u.denali.IndexRegs; 659e8b12f0fSMahesh Rajashekhara return 0; 660e8b12f0fSMahesh Rajashekhara } 661e8b12f0fSMahesh Rajashekhara 662a7e2c642SRaghava Aditya Renukunta void aac_set_intx_mode(struct aac_dev *dev) 66331364329SRaghava Aditya Renukunta { 66431364329SRaghava Aditya Renukunta if (dev->msi_enabled) { 66531364329SRaghava Aditya Renukunta aac_src_access_devreg(dev, AAC_ENABLE_INTX); 66631364329SRaghava Aditya Renukunta dev->msi_enabled = 0; 66731364329SRaghava Aditya Renukunta msleep(5000); /* Delay 5 seconds */ 66831364329SRaghava Aditya Renukunta } 66931364329SRaghava Aditya Renukunta } 67031364329SRaghava Aditya Renukunta 671a5799d74SRaghava Aditya Renukunta static void aac_clear_omr(struct aac_dev *dev) 672a5799d74SRaghava Aditya Renukunta { 673a5799d74SRaghava Aditya Renukunta u32 omr_value = 0; 674a5799d74SRaghava Aditya Renukunta 675a5799d74SRaghava Aditya Renukunta omr_value = src_readl(dev, MUnit.OMR); 676a5799d74SRaghava Aditya Renukunta 677a5799d74SRaghava Aditya Renukunta /* 678a5799d74SRaghava Aditya Renukunta * Check for PCI Errors or Kernel Panic 679a5799d74SRaghava Aditya Renukunta */ 680a5799d74SRaghava Aditya Renukunta if ((omr_value == INVALID_OMR) || (omr_value & KERNEL_PANIC)) 681a5799d74SRaghava Aditya Renukunta omr_value = 0; 682a5799d74SRaghava Aditya Renukunta 683a5799d74SRaghava Aditya Renukunta /* 684a5799d74SRaghava Aditya Renukunta * Preserve MSIX Value if any 685a5799d74SRaghava Aditya Renukunta */ 686a5799d74SRaghava Aditya Renukunta src_writel(dev, MUnit.OMR, omr_value & AAC_INT_MODE_MSIX); 687a5799d74SRaghava Aditya Renukunta src_readl(dev, MUnit.OMR); 688a5799d74SRaghava Aditya Renukunta } 689a5799d74SRaghava Aditya Renukunta 69009624645SRaghava Aditya Renukunta static void aac_dump_fw_fib_iop_reset(struct aac_dev *dev) 69109624645SRaghava Aditya Renukunta { 69209624645SRaghava Aditya Renukunta __le32 supported_options3; 69309624645SRaghava Aditya Renukunta 69409624645SRaghava Aditya Renukunta if (!aac_fib_dump) 69509624645SRaghava Aditya Renukunta return; 69609624645SRaghava Aditya Renukunta 69709624645SRaghava Aditya Renukunta supported_options3 = dev->supplement_adapter_info.supported_options3; 69809624645SRaghava Aditya Renukunta if (!(supported_options3 & AAC_OPTION_SUPPORTED3_IOP_RESET_FIB_DUMP)) 69909624645SRaghava Aditya Renukunta return; 70009624645SRaghava Aditya Renukunta 70109624645SRaghava Aditya Renukunta aac_adapter_sync_cmd(dev, IOP_RESET_FW_FIB_DUMP, 70209624645SRaghava Aditya Renukunta 0, 0, 0, 0, 0, 0, NULL, NULL, NULL, NULL, NULL); 70309624645SRaghava Aditya Renukunta } 70409624645SRaghava Aditya Renukunta 7050e9973edSRaghava Aditya Renukunta static bool aac_is_ctrl_up_and_running(struct aac_dev *dev) 7060e9973edSRaghava Aditya Renukunta { 7070e9973edSRaghava Aditya Renukunta bool ctrl_up = true; 7080e9973edSRaghava Aditya Renukunta unsigned long status, start; 7090e9973edSRaghava Aditya Renukunta bool is_up = false; 7100e9973edSRaghava Aditya Renukunta 7110e9973edSRaghava Aditya Renukunta start = jiffies; 7120e9973edSRaghava Aditya Renukunta do { 7130e9973edSRaghava Aditya Renukunta schedule(); 7140e9973edSRaghava Aditya Renukunta status = src_readl(dev, MUnit.OMR); 7150e9973edSRaghava Aditya Renukunta 7160e9973edSRaghava Aditya Renukunta if (status == 0xffffffff) 7170e9973edSRaghava Aditya Renukunta status = 0; 7180e9973edSRaghava Aditya Renukunta 7190e9973edSRaghava Aditya Renukunta if (status & KERNEL_BOOTING) { 7200e9973edSRaghava Aditya Renukunta start = jiffies; 7210e9973edSRaghava Aditya Renukunta continue; 7220e9973edSRaghava Aditya Renukunta } 7230e9973edSRaghava Aditya Renukunta 7240e9973edSRaghava Aditya Renukunta if (time_after(jiffies, start+HZ*SOFT_RESET_TIME)) { 7250e9973edSRaghava Aditya Renukunta ctrl_up = false; 7260e9973edSRaghava Aditya Renukunta break; 7270e9973edSRaghava Aditya Renukunta } 7280e9973edSRaghava Aditya Renukunta 7290e9973edSRaghava Aditya Renukunta is_up = status & KERNEL_UP_AND_RUNNING; 7300e9973edSRaghava Aditya Renukunta 7310e9973edSRaghava Aditya Renukunta } while (!is_up); 7320e9973edSRaghava Aditya Renukunta 7330e9973edSRaghava Aditya Renukunta return ctrl_up; 7340e9973edSRaghava Aditya Renukunta } 7350e9973edSRaghava Aditya Renukunta 73680c7d8a5SRaghava Aditya Renukunta static void aac_notify_fw_of_iop_reset(struct aac_dev *dev) 737e8b12f0fSMahesh Rajashekhara { 73880c7d8a5SRaghava Aditya Renukunta aac_adapter_sync_cmd(dev, IOP_RESET_ALWAYS, 0, 0, 0, 0, 0, 0, NULL, 73980c7d8a5SRaghava Aditya Renukunta NULL, NULL, NULL, NULL); 74080c7d8a5SRaghava Aditya Renukunta } 741e8b12f0fSMahesh Rajashekhara 74280c7d8a5SRaghava Aditya Renukunta static void aac_send_iop_reset(struct aac_dev *dev) 74380c7d8a5SRaghava Aditya Renukunta { 74409624645SRaghava Aditya Renukunta aac_dump_fw_fib_iop_reset(dev); 74509624645SRaghava Aditya Renukunta 74680c7d8a5SRaghava Aditya Renukunta aac_notify_fw_of_iop_reset(dev); 74731364329SRaghava Aditya Renukunta 74831364329SRaghava Aditya Renukunta aac_set_intx_mode(dev); 749495c0217SMahesh Rajashekhara 750a5799d74SRaghava Aditya Renukunta aac_clear_omr(dev); 751a5799d74SRaghava Aditya Renukunta 7526b24d425SRaghava Aditya Renukunta src_writel(dev, MUnit.IDR, IOP_SRC_RESET_MASK); 753d1b49093SGuilherme G. Piccoli 754d1b49093SGuilherme G. Piccoli msleep(5000); 755e8b12f0fSMahesh Rajashekhara } 756e8b12f0fSMahesh Rajashekhara 75731364329SRaghava Aditya Renukunta static void aac_send_hardware_soft_reset(struct aac_dev *dev) 75831364329SRaghava Aditya Renukunta { 75931364329SRaghava Aditya Renukunta u_int32_t val; 76031364329SRaghava Aditya Renukunta 761a5799d74SRaghava Aditya Renukunta aac_clear_omr(dev); 76231364329SRaghava Aditya Renukunta val = readl(((char *)(dev->base) + IBW_SWR_OFFSET)); 76331364329SRaghava Aditya Renukunta val |= 0x01; 76431364329SRaghava Aditya Renukunta writel(val, ((char *)(dev->base) + IBW_SWR_OFFSET)); 76531364329SRaghava Aditya Renukunta msleep_interruptible(20000); 76631364329SRaghava Aditya Renukunta } 76731364329SRaghava Aditya Renukunta 76831364329SRaghava Aditya Renukunta static int aac_src_restart_adapter(struct aac_dev *dev, int bled, u8 reset_type) 76931364329SRaghava Aditya Renukunta { 7700e9973edSRaghava Aditya Renukunta bool is_ctrl_up; 77177cb6d5eSRaghava Aditya Renukunta int ret = 0; 77231364329SRaghava Aditya Renukunta 77331364329SRaghava Aditya Renukunta if (bled < 0) 77431364329SRaghava Aditya Renukunta goto invalid_out; 77531364329SRaghava Aditya Renukunta 77631364329SRaghava Aditya Renukunta if (bled) 7774a76be0dSRaghava Aditya Renukunta dev_err(&dev->pdev->dev, "adapter kernel panic'd %x.\n", bled); 77831364329SRaghava Aditya Renukunta 779146aa178SRaghava Aditya Renukunta /* 780146aa178SRaghava Aditya Renukunta * When there is a BlinkLED, IOP_RESET has not effect 781146aa178SRaghava Aditya Renukunta */ 782146aa178SRaghava Aditya Renukunta if (bled >= 2 && dev->sa_firmware && reset_type & HW_IOP_RESET) 783146aa178SRaghava Aditya Renukunta reset_type &= ~HW_IOP_RESET; 784146aa178SRaghava Aditya Renukunta 78531364329SRaghava Aditya Renukunta dev->a_ops.adapter_enable_int = aac_src_disable_interrupt; 78631364329SRaghava Aditya Renukunta 7874a76be0dSRaghava Aditya Renukunta dev_err(&dev->pdev->dev, "Controller reset type is %d\n", reset_type); 7884a76be0dSRaghava Aditya Renukunta 7895aa60732SRaghava Aditya Renukunta if (reset_type & HW_IOP_RESET) { 7904a76be0dSRaghava Aditya Renukunta dev_info(&dev->pdev->dev, "Issuing IOP reset\n"); 79180c7d8a5SRaghava Aditya Renukunta aac_send_iop_reset(dev); 7920e9973edSRaghava Aditya Renukunta 7930e9973edSRaghava Aditya Renukunta /* 7940e9973edSRaghava Aditya Renukunta * Creates a delay or wait till up and running comes thru 7950e9973edSRaghava Aditya Renukunta */ 7960e9973edSRaghava Aditya Renukunta is_ctrl_up = aac_is_ctrl_up_and_running(dev); 7970e9973edSRaghava Aditya Renukunta if (!is_ctrl_up) 7980e9973edSRaghava Aditya Renukunta dev_err(&dev->pdev->dev, "IOP reset failed\n"); 7994a76be0dSRaghava Aditya Renukunta else { 800bc8282a7SMasanari Iida dev_info(&dev->pdev->dev, "IOP reset succeeded\n"); 8010e9973edSRaghava Aditya Renukunta goto set_startup; 8025aa60732SRaghava Aditya Renukunta } 8034a76be0dSRaghava Aditya Renukunta } 8040e9973edSRaghava Aditya Renukunta 80577cb6d5eSRaghava Aditya Renukunta if (!dev->sa_firmware) { 8064a76be0dSRaghava Aditya Renukunta dev_err(&dev->pdev->dev, "ARC Reset attempt failed\n"); 80777cb6d5eSRaghava Aditya Renukunta ret = -ENODEV; 80877cb6d5eSRaghava Aditya Renukunta goto out; 80977cb6d5eSRaghava Aditya Renukunta } 81077cb6d5eSRaghava Aditya Renukunta 8115aa60732SRaghava Aditya Renukunta if (reset_type & HW_SOFT_RESET) { 8124a76be0dSRaghava Aditya Renukunta dev_info(&dev->pdev->dev, "Issuing SOFT reset\n"); 81331364329SRaghava Aditya Renukunta aac_send_hardware_soft_reset(dev); 81477cb6d5eSRaghava Aditya Renukunta dev->msi_enabled = 0; 81577cb6d5eSRaghava Aditya Renukunta 81677cb6d5eSRaghava Aditya Renukunta is_ctrl_up = aac_is_ctrl_up_and_running(dev); 81777cb6d5eSRaghava Aditya Renukunta if (!is_ctrl_up) { 81877cb6d5eSRaghava Aditya Renukunta dev_err(&dev->pdev->dev, "SOFT reset failed\n"); 81977cb6d5eSRaghava Aditya Renukunta ret = -ENODEV; 82077cb6d5eSRaghava Aditya Renukunta goto out; 8214a76be0dSRaghava Aditya Renukunta } else 822bc8282a7SMasanari Iida dev_info(&dev->pdev->dev, "SOFT reset succeeded\n"); 82331364329SRaghava Aditya Renukunta } 824e8b12f0fSMahesh Rajashekhara 8250e9973edSRaghava Aditya Renukunta set_startup: 826e8b12f0fSMahesh Rajashekhara if (startup_timeout < 300) 827e8b12f0fSMahesh Rajashekhara startup_timeout = 300; 828e8b12f0fSMahesh Rajashekhara 82977cb6d5eSRaghava Aditya Renukunta out: 83077cb6d5eSRaghava Aditya Renukunta return ret; 8315aa60732SRaghava Aditya Renukunta 8325aa60732SRaghava Aditya Renukunta invalid_out: 8335aa60732SRaghava Aditya Renukunta if (src_readl(dev, MUnit.OMR) & KERNEL_PANIC) 8345aa60732SRaghava Aditya Renukunta ret = -ENODEV; 8355aa60732SRaghava Aditya Renukunta goto out; 836e8b12f0fSMahesh Rajashekhara } 837e8b12f0fSMahesh Rajashekhara 838e8b12f0fSMahesh Rajashekhara /** 839e8b12f0fSMahesh Rajashekhara * aac_src_select_comm - Select communications method 840e8b12f0fSMahesh Rajashekhara * @dev: Adapter 841e8b12f0fSMahesh Rajashekhara * @comm: communications method 842e8b12f0fSMahesh Rajashekhara */ 843a44199eeSBaoyou Xie static int aac_src_select_comm(struct aac_dev *dev, int comm) 844e8b12f0fSMahesh Rajashekhara { 845e8b12f0fSMahesh Rajashekhara switch (comm) { 846e8b12f0fSMahesh Rajashekhara case AAC_COMM_MESSAGE: 847e8b12f0fSMahesh Rajashekhara dev->a_ops.adapter_intr = aac_src_intr_message; 848e8b12f0fSMahesh Rajashekhara dev->a_ops.adapter_deliver = aac_src_deliver_message; 849e8b12f0fSMahesh Rajashekhara break; 850e8b12f0fSMahesh Rajashekhara default: 851e8b12f0fSMahesh Rajashekhara return 1; 852e8b12f0fSMahesh Rajashekhara } 853e8b12f0fSMahesh Rajashekhara return 0; 854e8b12f0fSMahesh Rajashekhara } 855e8b12f0fSMahesh Rajashekhara 856e8b12f0fSMahesh Rajashekhara /** 857e8b12f0fSMahesh Rajashekhara * aac_src_init - initialize an Cardinal Frey Bar card 858e8b12f0fSMahesh Rajashekhara * @dev: device to configure 859e8b12f0fSMahesh Rajashekhara * 860e8b12f0fSMahesh Rajashekhara */ 861e8b12f0fSMahesh Rajashekhara 862e8b12f0fSMahesh Rajashekhara int aac_src_init(struct aac_dev *dev) 863e8b12f0fSMahesh Rajashekhara { 864e8b12f0fSMahesh Rajashekhara unsigned long start; 865e8b12f0fSMahesh Rajashekhara unsigned long status; 866e8b12f0fSMahesh Rajashekhara int restart = 0; 867e8b12f0fSMahesh Rajashekhara int instance = dev->id; 868e8b12f0fSMahesh Rajashekhara const char *name = dev->name; 869e8b12f0fSMahesh Rajashekhara 870e8b12f0fSMahesh Rajashekhara dev->a_ops.adapter_ioremap = aac_src_ioremap; 871e8b12f0fSMahesh Rajashekhara dev->a_ops.adapter_comm = aac_src_select_comm; 872e8b12f0fSMahesh Rajashekhara 873e8b12f0fSMahesh Rajashekhara dev->base_size = AAC_MIN_SRC_BAR0_SIZE; 874e8b12f0fSMahesh Rajashekhara if (aac_adapter_ioremap(dev, dev->base_size)) { 875e8b12f0fSMahesh Rajashekhara printk(KERN_WARNING "%s: unable to map adapter.\n", name); 876e8b12f0fSMahesh Rajashekhara goto error_iounmap; 877e8b12f0fSMahesh Rajashekhara } 878e8b12f0fSMahesh Rajashekhara 879e8b12f0fSMahesh Rajashekhara /* Failure to reset here is an option ... */ 880e8b12f0fSMahesh Rajashekhara dev->a_ops.adapter_sync_cmd = src_sync_cmd; 881e8b12f0fSMahesh Rajashekhara dev->a_ops.adapter_enable_int = aac_src_disable_interrupt; 882d9b6d85aSGuilherme G. Piccoli 883d9b6d85aSGuilherme G. Piccoli if (dev->init_reset) { 884d9b6d85aSGuilherme G. Piccoli dev->init_reset = false; 885d9b6d85aSGuilherme G. Piccoli if (!aac_src_restart_adapter(dev, 0, IOP_HWSOFT_RESET)) 886e8b12f0fSMahesh Rajashekhara ++restart; 887d9b6d85aSGuilherme G. Piccoli } 888d9b6d85aSGuilherme G. Piccoli 889e8b12f0fSMahesh Rajashekhara /* 890e8b12f0fSMahesh Rajashekhara * Check to see if the board panic'd while booting. 891e8b12f0fSMahesh Rajashekhara */ 892e8b12f0fSMahesh Rajashekhara status = src_readl(dev, MUnit.OMR); 893e8b12f0fSMahesh Rajashekhara if (status & KERNEL_PANIC) { 89431364329SRaghava Aditya Renukunta if (aac_src_restart_adapter(dev, 89531364329SRaghava Aditya Renukunta aac_src_check_health(dev), IOP_HWSOFT_RESET)) 896e8b12f0fSMahesh Rajashekhara goto error_iounmap; 897e8b12f0fSMahesh Rajashekhara ++restart; 898e8b12f0fSMahesh Rajashekhara } 899e8b12f0fSMahesh Rajashekhara /* 900e8b12f0fSMahesh Rajashekhara * Check to see if the board failed any self tests. 901e8b12f0fSMahesh Rajashekhara */ 902e8b12f0fSMahesh Rajashekhara status = src_readl(dev, MUnit.OMR); 903e8b12f0fSMahesh Rajashekhara if (status & SELF_TEST_FAILED) { 904e8b12f0fSMahesh Rajashekhara printk(KERN_ERR "%s%d: adapter self-test failed.\n", 905e8b12f0fSMahesh Rajashekhara dev->name, instance); 906e8b12f0fSMahesh Rajashekhara goto error_iounmap; 907e8b12f0fSMahesh Rajashekhara } 908e8b12f0fSMahesh Rajashekhara /* 909e8b12f0fSMahesh Rajashekhara * Check to see if the monitor panic'd while booting. 910e8b12f0fSMahesh Rajashekhara */ 911e8b12f0fSMahesh Rajashekhara if (status & MONITOR_PANIC) { 912e8b12f0fSMahesh Rajashekhara printk(KERN_ERR "%s%d: adapter monitor panic.\n", 913e8b12f0fSMahesh Rajashekhara dev->name, instance); 914e8b12f0fSMahesh Rajashekhara goto error_iounmap; 915e8b12f0fSMahesh Rajashekhara } 916e8b12f0fSMahesh Rajashekhara start = jiffies; 917e8b12f0fSMahesh Rajashekhara /* 918e8b12f0fSMahesh Rajashekhara * Wait for the adapter to be up and running. Wait up to 3 minutes 919e8b12f0fSMahesh Rajashekhara */ 920e8b12f0fSMahesh Rajashekhara while (!((status = src_readl(dev, MUnit.OMR)) & 921e8b12f0fSMahesh Rajashekhara KERNEL_UP_AND_RUNNING)) { 922e8b12f0fSMahesh Rajashekhara if ((restart && 923e8b12f0fSMahesh Rajashekhara (status & (KERNEL_PANIC|SELF_TEST_FAILED|MONITOR_PANIC))) || 924e8b12f0fSMahesh Rajashekhara time_after(jiffies, start+HZ*startup_timeout)) { 925e8b12f0fSMahesh Rajashekhara printk(KERN_ERR "%s%d: adapter kernel failed to start, init status = %lx.\n", 926e8b12f0fSMahesh Rajashekhara dev->name, instance, status); 927e8b12f0fSMahesh Rajashekhara goto error_iounmap; 928e8b12f0fSMahesh Rajashekhara } 929e8b12f0fSMahesh Rajashekhara if (!restart && 930e8b12f0fSMahesh Rajashekhara ((status & (KERNEL_PANIC|SELF_TEST_FAILED|MONITOR_PANIC)) || 931e8b12f0fSMahesh Rajashekhara time_after(jiffies, start + HZ * 932e8b12f0fSMahesh Rajashekhara ((startup_timeout > 60) 933e8b12f0fSMahesh Rajashekhara ? (startup_timeout - 60) 934e8b12f0fSMahesh Rajashekhara : (startup_timeout / 2))))) { 935e8b12f0fSMahesh Rajashekhara if (likely(!aac_src_restart_adapter(dev, 93631364329SRaghava Aditya Renukunta aac_src_check_health(dev), IOP_HWSOFT_RESET))) 937e8b12f0fSMahesh Rajashekhara start = jiffies; 938e8b12f0fSMahesh Rajashekhara ++restart; 939e8b12f0fSMahesh Rajashekhara } 940e8b12f0fSMahesh Rajashekhara msleep(1); 941e8b12f0fSMahesh Rajashekhara } 942e8b12f0fSMahesh Rajashekhara if (restart && aac_commit) 943e8b12f0fSMahesh Rajashekhara aac_commit = 1; 944e8b12f0fSMahesh Rajashekhara /* 945e8b12f0fSMahesh Rajashekhara * Fill in the common function dispatch table. 946e8b12f0fSMahesh Rajashekhara */ 947e8b12f0fSMahesh Rajashekhara dev->a_ops.adapter_interrupt = aac_src_interrupt_adapter; 948e8b12f0fSMahesh Rajashekhara dev->a_ops.adapter_disable_int = aac_src_disable_interrupt; 949dafde947SMahesh Rajashekhara dev->a_ops.adapter_enable_int = aac_src_disable_interrupt; 950e8b12f0fSMahesh Rajashekhara dev->a_ops.adapter_notify = aac_src_notify_adapter; 951e8b12f0fSMahesh Rajashekhara dev->a_ops.adapter_sync_cmd = src_sync_cmd; 952e8b12f0fSMahesh Rajashekhara dev->a_ops.adapter_check_health = aac_src_check_health; 953e8b12f0fSMahesh Rajashekhara dev->a_ops.adapter_restart = aac_src_restart_adapter; 954de665f28SMahesh Rajashekhara dev->a_ops.adapter_start = aac_src_start_adapter; 955e8b12f0fSMahesh Rajashekhara 956e8b12f0fSMahesh Rajashekhara /* 957e8b12f0fSMahesh Rajashekhara * First clear out all interrupts. Then enable the one's that we 958e8b12f0fSMahesh Rajashekhara * can handle. 959e8b12f0fSMahesh Rajashekhara */ 960e8b12f0fSMahesh Rajashekhara aac_adapter_comm(dev, AAC_COMM_MESSAGE); 961e8b12f0fSMahesh Rajashekhara aac_adapter_disable_int(dev); 962e8b12f0fSMahesh Rajashekhara src_writel(dev, MUnit.ODR_C, 0xffffffff); 963e8b12f0fSMahesh Rajashekhara aac_adapter_enable_int(dev); 964e8b12f0fSMahesh Rajashekhara 965e8b12f0fSMahesh Rajashekhara if (aac_init_adapter(dev) == NULL) 966e8b12f0fSMahesh Rajashekhara goto error_iounmap; 967e8b12f0fSMahesh Rajashekhara if (dev->comm_interface != AAC_COMM_MESSAGE_TYPE1) 968e8b12f0fSMahesh Rajashekhara goto error_iounmap; 969e8b12f0fSMahesh Rajashekhara 9709022d375SMahesh Rajashekhara dev->msi = !pci_enable_msi(dev->pdev); 971e8b12f0fSMahesh Rajashekhara 972495c0217SMahesh Rajashekhara dev->aac_msix[0].vector_no = 0; 973495c0217SMahesh Rajashekhara dev->aac_msix[0].dev = dev; 974495c0217SMahesh Rajashekhara 975e8b12f0fSMahesh Rajashekhara if (request_irq(dev->pdev->irq, dev->a_ops.adapter_intr, 976495c0217SMahesh Rajashekhara IRQF_SHARED, "aacraid", &(dev->aac_msix[0])) < 0) { 977e8b12f0fSMahesh Rajashekhara 978e8b12f0fSMahesh Rajashekhara if (dev->msi) 979e8b12f0fSMahesh Rajashekhara pci_disable_msi(dev->pdev); 980e8b12f0fSMahesh Rajashekhara 981e8b12f0fSMahesh Rajashekhara printk(KERN_ERR "%s%d: Interrupt unavailable.\n", 982e8b12f0fSMahesh Rajashekhara name, instance); 983e8b12f0fSMahesh Rajashekhara goto error_iounmap; 984e8b12f0fSMahesh Rajashekhara } 985e8b12f0fSMahesh Rajashekhara dev->dbg_base = pci_resource_start(dev->pdev, 2); 986e8b12f0fSMahesh Rajashekhara dev->dbg_base_mapped = dev->regs.src.bar1; 987e8b12f0fSMahesh Rajashekhara dev->dbg_size = AAC_MIN_SRC_BAR1_SIZE; 988dafde947SMahesh Rajashekhara dev->a_ops.adapter_enable_int = aac_src_enable_interrupt_message; 989e8b12f0fSMahesh Rajashekhara 990e8b12f0fSMahesh Rajashekhara aac_adapter_enable_int(dev); 99111604612SMahesh Rajashekhara 99211604612SMahesh Rajashekhara if (!dev->sync_mode) { 993e8b12f0fSMahesh Rajashekhara /* 994e8b12f0fSMahesh Rajashekhara * Tell the adapter that all is configured, and it can 995e8b12f0fSMahesh Rajashekhara * start accepting requests 996e8b12f0fSMahesh Rajashekhara */ 997e8b12f0fSMahesh Rajashekhara aac_src_start_adapter(dev); 99811604612SMahesh Rajashekhara } 999e8b12f0fSMahesh Rajashekhara return 0; 1000e8b12f0fSMahesh Rajashekhara 1001e8b12f0fSMahesh Rajashekhara error_iounmap: 1002e8b12f0fSMahesh Rajashekhara 1003e8b12f0fSMahesh Rajashekhara return -1; 1004e8b12f0fSMahesh Rajashekhara } 100511604612SMahesh Rajashekhara 100644f1ce7dSRaghava Aditya Renukunta static int aac_src_wait_sync(struct aac_dev *dev, int *status) 100744f1ce7dSRaghava Aditya Renukunta { 100844f1ce7dSRaghava Aditya Renukunta unsigned long start = jiffies; 100944f1ce7dSRaghava Aditya Renukunta unsigned long usecs = 0; 101044f1ce7dSRaghava Aditya Renukunta int delay = 5 * HZ; 101144f1ce7dSRaghava Aditya Renukunta int rc = 1; 101244f1ce7dSRaghava Aditya Renukunta 101344f1ce7dSRaghava Aditya Renukunta while (time_before(jiffies, start+delay)) { 101444f1ce7dSRaghava Aditya Renukunta /* 101544f1ce7dSRaghava Aditya Renukunta * Delay 5 microseconds to let Mon960 get info. 101644f1ce7dSRaghava Aditya Renukunta */ 101744f1ce7dSRaghava Aditya Renukunta udelay(5); 101844f1ce7dSRaghava Aditya Renukunta 101944f1ce7dSRaghava Aditya Renukunta /* 102044f1ce7dSRaghava Aditya Renukunta * Mon960 will set doorbell0 bit when it has completed the 102144f1ce7dSRaghava Aditya Renukunta * command. 102244f1ce7dSRaghava Aditya Renukunta */ 102344f1ce7dSRaghava Aditya Renukunta if (aac_src_get_sync_status(dev) & OUTBOUNDDOORBELL_0) { 102444f1ce7dSRaghava Aditya Renukunta /* 102544f1ce7dSRaghava Aditya Renukunta * Clear: the doorbell. 102644f1ce7dSRaghava Aditya Renukunta */ 102744f1ce7dSRaghava Aditya Renukunta if (dev->msi_enabled) 102844f1ce7dSRaghava Aditya Renukunta aac_src_access_devreg(dev, AAC_CLEAR_SYNC_BIT); 102944f1ce7dSRaghava Aditya Renukunta else 103044f1ce7dSRaghava Aditya Renukunta src_writel(dev, MUnit.ODR_C, 103144f1ce7dSRaghava Aditya Renukunta OUTBOUNDDOORBELL_0 << SRC_ODR_SHIFT); 103244f1ce7dSRaghava Aditya Renukunta rc = 0; 103344f1ce7dSRaghava Aditya Renukunta 103444f1ce7dSRaghava Aditya Renukunta break; 103544f1ce7dSRaghava Aditya Renukunta } 103644f1ce7dSRaghava Aditya Renukunta 103744f1ce7dSRaghava Aditya Renukunta /* 103844f1ce7dSRaghava Aditya Renukunta * Yield the processor in case we are slow 103944f1ce7dSRaghava Aditya Renukunta */ 104044f1ce7dSRaghava Aditya Renukunta usecs = 1 * USEC_PER_MSEC; 104144f1ce7dSRaghava Aditya Renukunta usleep_range(usecs, usecs + 50); 104244f1ce7dSRaghava Aditya Renukunta } 104344f1ce7dSRaghava Aditya Renukunta /* 104444f1ce7dSRaghava Aditya Renukunta * Pull the synch status from Mailbox 0. 104544f1ce7dSRaghava Aditya Renukunta */ 104644f1ce7dSRaghava Aditya Renukunta if (status && !rc) { 104744f1ce7dSRaghava Aditya Renukunta status[0] = readl(&dev->IndexRegs->Mailbox[0]); 104844f1ce7dSRaghava Aditya Renukunta status[1] = readl(&dev->IndexRegs->Mailbox[1]); 104944f1ce7dSRaghava Aditya Renukunta status[2] = readl(&dev->IndexRegs->Mailbox[2]); 105044f1ce7dSRaghava Aditya Renukunta status[3] = readl(&dev->IndexRegs->Mailbox[3]); 105144f1ce7dSRaghava Aditya Renukunta status[4] = readl(&dev->IndexRegs->Mailbox[4]); 105244f1ce7dSRaghava Aditya Renukunta } 105344f1ce7dSRaghava Aditya Renukunta 105444f1ce7dSRaghava Aditya Renukunta return rc; 105544f1ce7dSRaghava Aditya Renukunta } 105644f1ce7dSRaghava Aditya Renukunta 105744f1ce7dSRaghava Aditya Renukunta /** 105844f1ce7dSRaghava Aditya Renukunta * aac_src_soft_reset - perform soft reset to speed up 105944f1ce7dSRaghava Aditya Renukunta * access 106044f1ce7dSRaghava Aditya Renukunta * 106144f1ce7dSRaghava Aditya Renukunta * Assumptions: That the controller is in a state where we can 106244f1ce7dSRaghava Aditya Renukunta * bring it back to life with an init struct. We can only use 106344f1ce7dSRaghava Aditya Renukunta * fast sync commands, as the timeout is 5 seconds. 106444f1ce7dSRaghava Aditya Renukunta * 106544f1ce7dSRaghava Aditya Renukunta * @dev: device to configure 106644f1ce7dSRaghava Aditya Renukunta * 106744f1ce7dSRaghava Aditya Renukunta */ 106844f1ce7dSRaghava Aditya Renukunta 106944f1ce7dSRaghava Aditya Renukunta static int aac_src_soft_reset(struct aac_dev *dev) 107044f1ce7dSRaghava Aditya Renukunta { 107144f1ce7dSRaghava Aditya Renukunta u32 status_omr = src_readl(dev, MUnit.OMR); 107244f1ce7dSRaghava Aditya Renukunta u32 status[5]; 107344f1ce7dSRaghava Aditya Renukunta int rc = 1; 107444f1ce7dSRaghava Aditya Renukunta int state = 0; 107544f1ce7dSRaghava Aditya Renukunta char *state_str[7] = { 107644f1ce7dSRaghava Aditya Renukunta "GET_ADAPTER_PROPERTIES Failed", 107744f1ce7dSRaghava Aditya Renukunta "GET_ADAPTER_PROPERTIES timeout", 107844f1ce7dSRaghava Aditya Renukunta "SOFT_RESET not supported", 107944f1ce7dSRaghava Aditya Renukunta "DROP_IO Failed", 108044f1ce7dSRaghava Aditya Renukunta "DROP_IO timeout", 108144f1ce7dSRaghava Aditya Renukunta "Check Health failed" 108244f1ce7dSRaghava Aditya Renukunta }; 108344f1ce7dSRaghava Aditya Renukunta 108444f1ce7dSRaghava Aditya Renukunta if (status_omr == INVALID_OMR) 108544f1ce7dSRaghava Aditya Renukunta return 1; // pcie hosed 108644f1ce7dSRaghava Aditya Renukunta 108744f1ce7dSRaghava Aditya Renukunta if (!(status_omr & KERNEL_UP_AND_RUNNING)) 108844f1ce7dSRaghava Aditya Renukunta return 1; // not up and running 108944f1ce7dSRaghava Aditya Renukunta 109044f1ce7dSRaghava Aditya Renukunta /* 109144f1ce7dSRaghava Aditya Renukunta * We go into soft reset mode to allow us to handle response 109244f1ce7dSRaghava Aditya Renukunta */ 109344f1ce7dSRaghava Aditya Renukunta dev->in_soft_reset = 1; 109444f1ce7dSRaghava Aditya Renukunta dev->msi_enabled = status_omr & AAC_INT_MODE_MSIX; 109544f1ce7dSRaghava Aditya Renukunta 109644f1ce7dSRaghava Aditya Renukunta /* Get adapter properties */ 109744f1ce7dSRaghava Aditya Renukunta rc = aac_adapter_sync_cmd(dev, GET_ADAPTER_PROPERTIES, 0, 0, 0, 109844f1ce7dSRaghava Aditya Renukunta 0, 0, 0, status+0, status+1, status+2, status+3, status+4); 109944f1ce7dSRaghava Aditya Renukunta if (rc) 110044f1ce7dSRaghava Aditya Renukunta goto out; 110144f1ce7dSRaghava Aditya Renukunta 110244f1ce7dSRaghava Aditya Renukunta state++; 110344f1ce7dSRaghava Aditya Renukunta if (aac_src_wait_sync(dev, status)) { 110444f1ce7dSRaghava Aditya Renukunta rc = 1; 110544f1ce7dSRaghava Aditya Renukunta goto out; 110644f1ce7dSRaghava Aditya Renukunta } 110744f1ce7dSRaghava Aditya Renukunta 110844f1ce7dSRaghava Aditya Renukunta state++; 110944f1ce7dSRaghava Aditya Renukunta if (!(status[1] & le32_to_cpu(AAC_OPT_EXTENDED) && 111044f1ce7dSRaghava Aditya Renukunta (status[4] & le32_to_cpu(AAC_EXTOPT_SOFT_RESET)))) { 111144f1ce7dSRaghava Aditya Renukunta rc = 2; 111244f1ce7dSRaghava Aditya Renukunta goto out; 111344f1ce7dSRaghava Aditya Renukunta } 111444f1ce7dSRaghava Aditya Renukunta 111544f1ce7dSRaghava Aditya Renukunta if ((status[1] & le32_to_cpu(AAC_OPT_EXTENDED)) && 111644f1ce7dSRaghava Aditya Renukunta (status[4] & le32_to_cpu(AAC_EXTOPT_SA_FIRMWARE))) 111744f1ce7dSRaghava Aditya Renukunta dev->sa_firmware = 1; 111844f1ce7dSRaghava Aditya Renukunta 111944f1ce7dSRaghava Aditya Renukunta state++; 112044f1ce7dSRaghava Aditya Renukunta rc = aac_adapter_sync_cmd(dev, DROP_IO, 0, 0, 0, 0, 0, 0, 112144f1ce7dSRaghava Aditya Renukunta status+0, status+1, status+2, status+3, status+4); 112244f1ce7dSRaghava Aditya Renukunta 112344f1ce7dSRaghava Aditya Renukunta if (rc) 112444f1ce7dSRaghava Aditya Renukunta goto out; 112544f1ce7dSRaghava Aditya Renukunta 112644f1ce7dSRaghava Aditya Renukunta state++; 112744f1ce7dSRaghava Aditya Renukunta if (aac_src_wait_sync(dev, status)) { 112844f1ce7dSRaghava Aditya Renukunta rc = 3; 112944f1ce7dSRaghava Aditya Renukunta goto out; 113044f1ce7dSRaghava Aditya Renukunta } 113144f1ce7dSRaghava Aditya Renukunta 113244f1ce7dSRaghava Aditya Renukunta if (status[1]) 113344f1ce7dSRaghava Aditya Renukunta dev_err(&dev->pdev->dev, "%s: %d outstanding I/O pending\n", 113444f1ce7dSRaghava Aditya Renukunta __func__, status[1]); 113544f1ce7dSRaghava Aditya Renukunta 113644f1ce7dSRaghava Aditya Renukunta state++; 113744f1ce7dSRaghava Aditya Renukunta rc = aac_src_check_health(dev); 113844f1ce7dSRaghava Aditya Renukunta 113944f1ce7dSRaghava Aditya Renukunta out: 114044f1ce7dSRaghava Aditya Renukunta dev->in_soft_reset = 0; 114144f1ce7dSRaghava Aditya Renukunta dev->msi_enabled = 0; 114244f1ce7dSRaghava Aditya Renukunta if (rc) 114344f1ce7dSRaghava Aditya Renukunta dev_err(&dev->pdev->dev, "%s: %s status = %d", __func__, 114444f1ce7dSRaghava Aditya Renukunta state_str[state], rc); 114544f1ce7dSRaghava Aditya Renukunta 114644f1ce7dSRaghava Aditya Renukunta return rc; 114744f1ce7dSRaghava Aditya Renukunta } 114811604612SMahesh Rajashekhara /** 114911604612SMahesh Rajashekhara * aac_srcv_init - initialize an SRCv card 115011604612SMahesh Rajashekhara * @dev: device to configure 115111604612SMahesh Rajashekhara * 115211604612SMahesh Rajashekhara */ 115311604612SMahesh Rajashekhara 115411604612SMahesh Rajashekhara int aac_srcv_init(struct aac_dev *dev) 115511604612SMahesh Rajashekhara { 115611604612SMahesh Rajashekhara unsigned long start; 115711604612SMahesh Rajashekhara unsigned long status; 115811604612SMahesh Rajashekhara int restart = 0; 115911604612SMahesh Rajashekhara int instance = dev->id; 116011604612SMahesh Rajashekhara const char *name = dev->name; 116111604612SMahesh Rajashekhara 116211604612SMahesh Rajashekhara dev->a_ops.adapter_ioremap = aac_srcv_ioremap; 116311604612SMahesh Rajashekhara dev->a_ops.adapter_comm = aac_src_select_comm; 116411604612SMahesh Rajashekhara 116511604612SMahesh Rajashekhara dev->base_size = AAC_MIN_SRCV_BAR0_SIZE; 116611604612SMahesh Rajashekhara if (aac_adapter_ioremap(dev, dev->base_size)) { 116711604612SMahesh Rajashekhara printk(KERN_WARNING "%s: unable to map adapter.\n", name); 116811604612SMahesh Rajashekhara goto error_iounmap; 116911604612SMahesh Rajashekhara } 117011604612SMahesh Rajashekhara 117111604612SMahesh Rajashekhara /* Failure to reset here is an option ... */ 117211604612SMahesh Rajashekhara dev->a_ops.adapter_sync_cmd = src_sync_cmd; 117311604612SMahesh Rajashekhara dev->a_ops.adapter_enable_int = aac_src_disable_interrupt; 1174d9b6d85aSGuilherme G. Piccoli 1175d9b6d85aSGuilherme G. Piccoli if (dev->init_reset) { 1176d9b6d85aSGuilherme G. Piccoli dev->init_reset = false; 117744f1ce7dSRaghava Aditya Renukunta if (aac_src_soft_reset(dev)) { 117844f1ce7dSRaghava Aditya Renukunta aac_src_restart_adapter(dev, 0, IOP_HWSOFT_RESET); 117911604612SMahesh Rajashekhara ++restart; 1180d9b6d85aSGuilherme G. Piccoli } 118144f1ce7dSRaghava Aditya Renukunta } 1182d9b6d85aSGuilherme G. Piccoli 118311604612SMahesh Rajashekhara /* 11842c10cd43SMahesh Rajashekhara * Check to see if flash update is running. 11852c10cd43SMahesh Rajashekhara * Wait for the adapter to be up and running. Wait up to 5 minutes 11862c10cd43SMahesh Rajashekhara */ 11872c10cd43SMahesh Rajashekhara status = src_readl(dev, MUnit.OMR); 11882c10cd43SMahesh Rajashekhara if (status & FLASH_UPD_PENDING) { 11892c10cd43SMahesh Rajashekhara start = jiffies; 11902c10cd43SMahesh Rajashekhara do { 11912c10cd43SMahesh Rajashekhara status = src_readl(dev, MUnit.OMR); 11922c10cd43SMahesh Rajashekhara if (time_after(jiffies, start+HZ*FWUPD_TIMEOUT)) { 11932c10cd43SMahesh Rajashekhara printk(KERN_ERR "%s%d: adapter flash update failed.\n", 11942c10cd43SMahesh Rajashekhara dev->name, instance); 11952c10cd43SMahesh Rajashekhara goto error_iounmap; 11962c10cd43SMahesh Rajashekhara } 11972c10cd43SMahesh Rajashekhara } while (!(status & FLASH_UPD_SUCCESS) && 11982c10cd43SMahesh Rajashekhara !(status & FLASH_UPD_FAILED)); 11992c10cd43SMahesh Rajashekhara /* Delay 10 seconds. 12002c10cd43SMahesh Rajashekhara * Because right now FW is doing a soft reset, 12012c10cd43SMahesh Rajashekhara * do not read scratch pad register at this time 12022c10cd43SMahesh Rajashekhara */ 12032c10cd43SMahesh Rajashekhara ssleep(10); 12042c10cd43SMahesh Rajashekhara } 12052c10cd43SMahesh Rajashekhara /* 120611604612SMahesh Rajashekhara * Check to see if the board panic'd while booting. 120711604612SMahesh Rajashekhara */ 120811604612SMahesh Rajashekhara status = src_readl(dev, MUnit.OMR); 120911604612SMahesh Rajashekhara if (status & KERNEL_PANIC) { 121031364329SRaghava Aditya Renukunta if (aac_src_restart_adapter(dev, 121131364329SRaghava Aditya Renukunta aac_src_check_health(dev), IOP_HWSOFT_RESET)) 121211604612SMahesh Rajashekhara goto error_iounmap; 121311604612SMahesh Rajashekhara ++restart; 121411604612SMahesh Rajashekhara } 121511604612SMahesh Rajashekhara /* 121611604612SMahesh Rajashekhara * Check to see if the board failed any self tests. 121711604612SMahesh Rajashekhara */ 121811604612SMahesh Rajashekhara status = src_readl(dev, MUnit.OMR); 121911604612SMahesh Rajashekhara if (status & SELF_TEST_FAILED) { 122011604612SMahesh Rajashekhara printk(KERN_ERR "%s%d: adapter self-test failed.\n", dev->name, instance); 122111604612SMahesh Rajashekhara goto error_iounmap; 122211604612SMahesh Rajashekhara } 122311604612SMahesh Rajashekhara /* 122411604612SMahesh Rajashekhara * Check to see if the monitor panic'd while booting. 122511604612SMahesh Rajashekhara */ 122611604612SMahesh Rajashekhara if (status & MONITOR_PANIC) { 122711604612SMahesh Rajashekhara printk(KERN_ERR "%s%d: adapter monitor panic.\n", dev->name, instance); 122811604612SMahesh Rajashekhara goto error_iounmap; 122911604612SMahesh Rajashekhara } 123044f1ce7dSRaghava Aditya Renukunta 123111604612SMahesh Rajashekhara start = jiffies; 123211604612SMahesh Rajashekhara /* 123311604612SMahesh Rajashekhara * Wait for the adapter to be up and running. Wait up to 3 minutes 123411604612SMahesh Rajashekhara */ 123544f1ce7dSRaghava Aditya Renukunta do { 123644f1ce7dSRaghava Aditya Renukunta status = src_readl(dev, MUnit.OMR); 123744f1ce7dSRaghava Aditya Renukunta if (status == INVALID_OMR) 123844f1ce7dSRaghava Aditya Renukunta status = 0; 123944f1ce7dSRaghava Aditya Renukunta 124011604612SMahesh Rajashekhara if ((restart && 124111604612SMahesh Rajashekhara (status & (KERNEL_PANIC|SELF_TEST_FAILED|MONITOR_PANIC))) || 124211604612SMahesh Rajashekhara time_after(jiffies, start+HZ*startup_timeout)) { 124311604612SMahesh Rajashekhara printk(KERN_ERR "%s%d: adapter kernel failed to start, init status = %lx.\n", 124411604612SMahesh Rajashekhara dev->name, instance, status); 124511604612SMahesh Rajashekhara goto error_iounmap; 124611604612SMahesh Rajashekhara } 124711604612SMahesh Rajashekhara if (!restart && 124811604612SMahesh Rajashekhara ((status & (KERNEL_PANIC|SELF_TEST_FAILED|MONITOR_PANIC)) || 124911604612SMahesh Rajashekhara time_after(jiffies, start + HZ * 125011604612SMahesh Rajashekhara ((startup_timeout > 60) 125111604612SMahesh Rajashekhara ? (startup_timeout - 60) 125211604612SMahesh Rajashekhara : (startup_timeout / 2))))) { 125331364329SRaghava Aditya Renukunta if (likely(!aac_src_restart_adapter(dev, 125431364329SRaghava Aditya Renukunta aac_src_check_health(dev), IOP_HWSOFT_RESET))) 125511604612SMahesh Rajashekhara start = jiffies; 125611604612SMahesh Rajashekhara ++restart; 125711604612SMahesh Rajashekhara } 125811604612SMahesh Rajashekhara msleep(1); 125944f1ce7dSRaghava Aditya Renukunta } while (!(status & KERNEL_UP_AND_RUNNING)); 126044f1ce7dSRaghava Aditya Renukunta 126111604612SMahesh Rajashekhara if (restart && aac_commit) 126211604612SMahesh Rajashekhara aac_commit = 1; 126311604612SMahesh Rajashekhara /* 126411604612SMahesh Rajashekhara * Fill in the common function dispatch table. 126511604612SMahesh Rajashekhara */ 126611604612SMahesh Rajashekhara dev->a_ops.adapter_interrupt = aac_src_interrupt_adapter; 126711604612SMahesh Rajashekhara dev->a_ops.adapter_disable_int = aac_src_disable_interrupt; 1268dafde947SMahesh Rajashekhara dev->a_ops.adapter_enable_int = aac_src_disable_interrupt; 126911604612SMahesh Rajashekhara dev->a_ops.adapter_notify = aac_src_notify_adapter; 127011604612SMahesh Rajashekhara dev->a_ops.adapter_sync_cmd = src_sync_cmd; 127111604612SMahesh Rajashekhara dev->a_ops.adapter_check_health = aac_src_check_health; 127211604612SMahesh Rajashekhara dev->a_ops.adapter_restart = aac_src_restart_adapter; 1273de665f28SMahesh Rajashekhara dev->a_ops.adapter_start = aac_src_start_adapter; 127411604612SMahesh Rajashekhara 127511604612SMahesh Rajashekhara /* 127611604612SMahesh Rajashekhara * First clear out all interrupts. Then enable the one's that we 127711604612SMahesh Rajashekhara * can handle. 127811604612SMahesh Rajashekhara */ 127911604612SMahesh Rajashekhara aac_adapter_comm(dev, AAC_COMM_MESSAGE); 128011604612SMahesh Rajashekhara aac_adapter_disable_int(dev); 128111604612SMahesh Rajashekhara src_writel(dev, MUnit.ODR_C, 0xffffffff); 128211604612SMahesh Rajashekhara aac_adapter_enable_int(dev); 128311604612SMahesh Rajashekhara 128411604612SMahesh Rajashekhara if (aac_init_adapter(dev) == NULL) 128511604612SMahesh Rajashekhara goto error_iounmap; 1286d1ef4da8SRaghava Aditya Renukunta if ((dev->comm_interface != AAC_COMM_MESSAGE_TYPE2) && 1287d1ef4da8SRaghava Aditya Renukunta (dev->comm_interface != AAC_COMM_MESSAGE_TYPE3)) 128811604612SMahesh Rajashekhara goto error_iounmap; 1289495c0217SMahesh Rajashekhara if (dev->msi_enabled) 1290495c0217SMahesh Rajashekhara aac_src_access_devreg(dev, AAC_ENABLE_MSIX); 1291495c0217SMahesh Rajashekhara 12928b1462e0SMahesh Rajashekhara if (aac_acquire_irq(dev)) 1293495c0217SMahesh Rajashekhara goto error_iounmap; 1294495c0217SMahesh Rajashekhara 12953ffd6c5aSRaghava Aditya Renukunta dev->dbg_base = pci_resource_start(dev->pdev, 2); 12963ffd6c5aSRaghava Aditya Renukunta dev->dbg_base_mapped = dev->regs.src.bar1; 12973ffd6c5aSRaghava Aditya Renukunta dev->dbg_size = AAC_MIN_SRCV_BAR1_SIZE; 1298dafde947SMahesh Rajashekhara dev->a_ops.adapter_enable_int = aac_src_enable_interrupt_message; 129911604612SMahesh Rajashekhara 130011604612SMahesh Rajashekhara aac_adapter_enable_int(dev); 130111604612SMahesh Rajashekhara 130211604612SMahesh Rajashekhara if (!dev->sync_mode) { 130311604612SMahesh Rajashekhara /* 130411604612SMahesh Rajashekhara * Tell the adapter that all is configured, and it can 130511604612SMahesh Rajashekhara * start accepting requests 130611604612SMahesh Rajashekhara */ 130711604612SMahesh Rajashekhara aac_src_start_adapter(dev); 130811604612SMahesh Rajashekhara } 130911604612SMahesh Rajashekhara return 0; 131011604612SMahesh Rajashekhara 131111604612SMahesh Rajashekhara error_iounmap: 131211604612SMahesh Rajashekhara 131311604612SMahesh Rajashekhara return -1; 131411604612SMahesh Rajashekhara } 131511604612SMahesh Rajashekhara 1316495c0217SMahesh Rajashekhara void aac_src_access_devreg(struct aac_dev *dev, int mode) 1317495c0217SMahesh Rajashekhara { 1318495c0217SMahesh Rajashekhara u_int32_t val; 1319495c0217SMahesh Rajashekhara 1320495c0217SMahesh Rajashekhara switch (mode) { 1321495c0217SMahesh Rajashekhara case AAC_ENABLE_INTERRUPT: 1322495c0217SMahesh Rajashekhara src_writel(dev, 1323495c0217SMahesh Rajashekhara MUnit.OIMR, 1324495c0217SMahesh Rajashekhara dev->OIMR = (dev->msi_enabled ? 1325495c0217SMahesh Rajashekhara AAC_INT_ENABLE_TYPE1_MSIX : 1326495c0217SMahesh Rajashekhara AAC_INT_ENABLE_TYPE1_INTX)); 1327495c0217SMahesh Rajashekhara break; 1328495c0217SMahesh Rajashekhara 1329495c0217SMahesh Rajashekhara case AAC_DISABLE_INTERRUPT: 1330495c0217SMahesh Rajashekhara src_writel(dev, 1331495c0217SMahesh Rajashekhara MUnit.OIMR, 1332495c0217SMahesh Rajashekhara dev->OIMR = AAC_INT_DISABLE_ALL); 1333495c0217SMahesh Rajashekhara break; 1334495c0217SMahesh Rajashekhara 1335495c0217SMahesh Rajashekhara case AAC_ENABLE_MSIX: 1336495c0217SMahesh Rajashekhara /* set bit 6 */ 1337495c0217SMahesh Rajashekhara val = src_readl(dev, MUnit.IDR); 1338495c0217SMahesh Rajashekhara val |= 0x40; 1339495c0217SMahesh Rajashekhara src_writel(dev, MUnit.IDR, val); 1340495c0217SMahesh Rajashekhara src_readl(dev, MUnit.IDR); 1341495c0217SMahesh Rajashekhara /* unmask int. */ 1342495c0217SMahesh Rajashekhara val = PMC_ALL_INTERRUPT_BITS; 1343495c0217SMahesh Rajashekhara src_writel(dev, MUnit.IOAR, val); 1344495c0217SMahesh Rajashekhara val = src_readl(dev, MUnit.OIMR); 1345495c0217SMahesh Rajashekhara src_writel(dev, 1346495c0217SMahesh Rajashekhara MUnit.OIMR, 1347495c0217SMahesh Rajashekhara val & (~(PMC_GLOBAL_INT_BIT2 | PMC_GLOBAL_INT_BIT0))); 1348495c0217SMahesh Rajashekhara break; 1349495c0217SMahesh Rajashekhara 1350495c0217SMahesh Rajashekhara case AAC_DISABLE_MSIX: 1351495c0217SMahesh Rajashekhara /* reset bit 6 */ 1352495c0217SMahesh Rajashekhara val = src_readl(dev, MUnit.IDR); 1353495c0217SMahesh Rajashekhara val &= ~0x40; 1354495c0217SMahesh Rajashekhara src_writel(dev, MUnit.IDR, val); 1355495c0217SMahesh Rajashekhara src_readl(dev, MUnit.IDR); 1356495c0217SMahesh Rajashekhara break; 1357495c0217SMahesh Rajashekhara 1358495c0217SMahesh Rajashekhara case AAC_CLEAR_AIF_BIT: 1359495c0217SMahesh Rajashekhara /* set bit 5 */ 1360495c0217SMahesh Rajashekhara val = src_readl(dev, MUnit.IDR); 1361495c0217SMahesh Rajashekhara val |= 0x20; 1362495c0217SMahesh Rajashekhara src_writel(dev, MUnit.IDR, val); 1363495c0217SMahesh Rajashekhara src_readl(dev, MUnit.IDR); 1364495c0217SMahesh Rajashekhara break; 1365495c0217SMahesh Rajashekhara 1366495c0217SMahesh Rajashekhara case AAC_CLEAR_SYNC_BIT: 1367495c0217SMahesh Rajashekhara /* set bit 4 */ 1368495c0217SMahesh Rajashekhara val = src_readl(dev, MUnit.IDR); 1369495c0217SMahesh Rajashekhara val |= 0x10; 1370495c0217SMahesh Rajashekhara src_writel(dev, MUnit.IDR, val); 1371495c0217SMahesh Rajashekhara src_readl(dev, MUnit.IDR); 1372495c0217SMahesh Rajashekhara break; 1373495c0217SMahesh Rajashekhara 1374495c0217SMahesh Rajashekhara case AAC_ENABLE_INTX: 1375495c0217SMahesh Rajashekhara /* set bit 7 */ 1376495c0217SMahesh Rajashekhara val = src_readl(dev, MUnit.IDR); 1377495c0217SMahesh Rajashekhara val |= 0x80; 1378495c0217SMahesh Rajashekhara src_writel(dev, MUnit.IDR, val); 1379495c0217SMahesh Rajashekhara src_readl(dev, MUnit.IDR); 1380495c0217SMahesh Rajashekhara /* unmask int. */ 1381495c0217SMahesh Rajashekhara val = PMC_ALL_INTERRUPT_BITS; 1382495c0217SMahesh Rajashekhara src_writel(dev, MUnit.IOAR, val); 1383495c0217SMahesh Rajashekhara src_readl(dev, MUnit.IOAR); 1384495c0217SMahesh Rajashekhara val = src_readl(dev, MUnit.OIMR); 1385495c0217SMahesh Rajashekhara src_writel(dev, MUnit.OIMR, 1386495c0217SMahesh Rajashekhara val & (~(PMC_GLOBAL_INT_BIT2))); 1387495c0217SMahesh Rajashekhara break; 1388495c0217SMahesh Rajashekhara 1389495c0217SMahesh Rajashekhara default: 1390495c0217SMahesh Rajashekhara break; 1391495c0217SMahesh Rajashekhara } 1392495c0217SMahesh Rajashekhara } 1393495c0217SMahesh Rajashekhara 1394495c0217SMahesh Rajashekhara static int aac_src_get_sync_status(struct aac_dev *dev) 1395495c0217SMahesh Rajashekhara { 1396eee549e1SRaghava Aditya Renukunta int msix_val = 0; 1397eee549e1SRaghava Aditya Renukunta int legacy_val = 0; 1398495c0217SMahesh Rajashekhara 1399eee549e1SRaghava Aditya Renukunta msix_val = src_readl(dev, MUnit.ODR_MSI) & SRC_MSI_READ_MASK ? 1 : 0; 1400495c0217SMahesh Rajashekhara 1401eee549e1SRaghava Aditya Renukunta if (!dev->msi_enabled) { 1402eee549e1SRaghava Aditya Renukunta /* 1403eee549e1SRaghava Aditya Renukunta * if Legacy int status indicates cmd is not complete 1404eee549e1SRaghava Aditya Renukunta * sample MSIx register to see if it indiactes cmd complete, 1405eee549e1SRaghava Aditya Renukunta * if yes set the controller in MSIx mode and consider cmd 1406eee549e1SRaghava Aditya Renukunta * completed 1407eee549e1SRaghava Aditya Renukunta */ 1408eee549e1SRaghava Aditya Renukunta legacy_val = src_readl(dev, MUnit.ODR_R) >> SRC_ODR_SHIFT; 1409eee549e1SRaghava Aditya Renukunta if (!(legacy_val & 1) && msix_val) 1410eee549e1SRaghava Aditya Renukunta dev->msi_enabled = 1; 1411eee549e1SRaghava Aditya Renukunta return legacy_val; 1412eee549e1SRaghava Aditya Renukunta } 1413495c0217SMahesh Rajashekhara 1414eee549e1SRaghava Aditya Renukunta return msix_val; 1415495c0217SMahesh Rajashekhara } 1416