From 244b2c5ca8b14627e4a17755e5922221e121c771 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Wed, 09 Oct 2024 06:15:07 +0000
Subject: [PATCH] change system file
---
kernel/drivers/scsi/dpt_i2o.c | 405 +++++----------------------------------------------------
1 files changed, 40 insertions(+), 365 deletions(-)
diff --git a/kernel/drivers/scsi/dpt_i2o.c b/kernel/drivers/scsi/dpt_i2o.c
index 37de8fb..43ec565 100644
--- a/kernel/drivers/scsi/dpt_i2o.c
+++ b/kernel/drivers/scsi/dpt_i2o.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/***************************************************************************
dpti.c - description
-------------------
@@ -7,16 +8,12 @@
July 30, 2001 First version being submitted
for inclusion in the kernel. V2.4
- See Documentation/scsi/dpti.txt for history, notes, license info
+ See Documentation/scsi/dpti.rst for history, notes, license info
and credits
***************************************************************************/
/***************************************************************************
* *
- * This program is free software; you can redistribute it and/or modify *
- * it under the terms of the GNU General Public License as published by *
- * the Free Software Foundation; either version 2 of the License, or *
- * (at your option) any later version. *
* *
***************************************************************************/
/***************************************************************************
@@ -30,6 +27,7 @@
/*#define UARTDELAY 1 */
#include <linux/module.h>
+#include <linux/pgtable.h>
MODULE_AUTHOR("Deanna Bonds, with _lots_ of help from Mark Salyzyn");
MODULE_DESCRIPTION("Adaptec I2O RAID Driver");
@@ -58,8 +56,7 @@
#include <linux/mutex.h>
#include <asm/processor.h> /* for boot_cpu_data */
-#include <asm/pgtable.h>
-#include <asm/io.h> /* for virt_to_bus, etc. */
+#include <asm/io.h>
#include <scsi/scsi.h>
#include <scsi/scsi_cmnd.h>
@@ -411,9 +408,6 @@
static int adpt_slave_configure(struct scsi_device * device)
{
struct Scsi_Host *host = device->host;
- adpt_hba* pHba;
-
- pHba = (adpt_hba *) host->hostdata[0];
if (host->can_queue && device->tagged_supported) {
scsi_change_queue_depth(device,
@@ -588,91 +582,6 @@
return 0;
}
-/*
- * Turn a struct scsi_cmnd * into a unique 32 bit 'context'.
- */
-static u32 adpt_cmd_to_context(struct scsi_cmnd *cmd)
-{
- return (u32)cmd->serial_number;
-}
-
-/*
- * Go from a u32 'context' to a struct scsi_cmnd * .
- * This could probably be made more efficient.
- */
-static struct scsi_cmnd *
- adpt_cmd_from_context(adpt_hba * pHba, u32 context)
-{
- struct scsi_cmnd * cmd;
- struct scsi_device * d;
-
- if (context == 0)
- return NULL;
-
- spin_unlock(pHba->host->host_lock);
- shost_for_each_device(d, pHba->host) {
- unsigned long flags;
- spin_lock_irqsave(&d->list_lock, flags);
- list_for_each_entry(cmd, &d->cmd_list, list) {
- if (((u32)cmd->serial_number == context)) {
- spin_unlock_irqrestore(&d->list_lock, flags);
- scsi_device_put(d);
- spin_lock(pHba->host->host_lock);
- return cmd;
- }
- }
- spin_unlock_irqrestore(&d->list_lock, flags);
- }
- spin_lock(pHba->host->host_lock);
-
- return NULL;
-}
-
-/*
- * Turn a pointer to ioctl reply data into an u32 'context'
- */
-static u32 adpt_ioctl_to_context(adpt_hba * pHba, void *reply)
-{
-#if BITS_PER_LONG == 32
- return (u32)(unsigned long)reply;
-#else
- ulong flags = 0;
- u32 nr, i;
-
- spin_lock_irqsave(pHba->host->host_lock, flags);
- nr = ARRAY_SIZE(pHba->ioctl_reply_context);
- for (i = 0; i < nr; i++) {
- if (pHba->ioctl_reply_context[i] == NULL) {
- pHba->ioctl_reply_context[i] = reply;
- break;
- }
- }
- spin_unlock_irqrestore(pHba->host->host_lock, flags);
- if (i >= nr) {
- printk(KERN_WARNING"%s: Too many outstanding "
- "ioctl commands\n", pHba->name);
- return (u32)-1;
- }
-
- return i;
-#endif
-}
-
-/*
- * Go from an u32 'context' to a pointer to ioctl reply data.
- */
-static void *adpt_ioctl_from_context(adpt_hba *pHba, u32 context)
-{
-#if BITS_PER_LONG == 32
- return (void *)(unsigned long)context;
-#else
- void *p = pHba->ioctl_reply_context[context];
- pHba->ioctl_reply_context[context] = NULL;
-
- return p;
-#endif
-}
-
/*===========================================================================
* Error Handling routines
*===========================================================================
@@ -685,9 +594,6 @@
u32 msg[5];
int rcode;
- if(cmd->serial_number == 0){
- return FAILED;
- }
pHba = (adpt_hba*) cmd->device->host->hostdata[0];
printk(KERN_INFO"%s: Trying to Abort\n",pHba->name);
if ((dptdevice = (void*) (cmd->device->hostdata)) == NULL) {
@@ -699,8 +605,9 @@
msg[0] = FIVE_WORD_MSG_SIZE|SGL_OFFSET_0;
msg[1] = I2O_CMD_SCSI_ABORT<<24|HOST_TID<<12|dptdevice->tid;
msg[2] = 0;
- msg[3]= 0;
- msg[4] = adpt_cmd_to_context(cmd);
+ msg[3]= 0;
+ /* Add 1 to avoid firmware treating it as invalid command */
+ msg[4] = cmd->request->tag + 1;
if (pHba->host)
spin_lock_irq(pHba->host->host_lock);
rcode = adpt_i2o_post_wait(pHba, msg, sizeof(msg), FOREVER);
@@ -862,7 +769,7 @@
}
pHba->state &= ~DPTI_STATE_RESET;
- adpt_fail_posted_scbs(pHba);
+ scsi_host_complete_all_commands(pHba->host, DID_RESET);
return 0; /* return success */
}
@@ -877,8 +784,8 @@
adpt_hba *pHba, *pNext;
struct adpt_i2o_post_wait_data *p1, *old;
- printk(KERN_INFO"Shutting down Adaptec I2O controllers.\n");
- printk(KERN_INFO" This could take a few minutes if there are many devices attached\n");
+ printk(KERN_INFO "Shutting down Adaptec I2O controllers.\n");
+ printk(KERN_INFO " This could take a few minutes if there are many devices attached\n");
/* Delete all IOPs from the controller chain */
/* They should have already been released by the
* scsi-core
@@ -901,7 +808,7 @@
// spin_unlock_irqrestore(&adpt_post_wait_lock, flags);
adpt_post_wait_queue = NULL;
- printk(KERN_INFO "Adaptec I2O controllers down.\n");
+ printk(KERN_INFO "Adaptec I2O controllers down.\n");
}
static int adpt_install_hba(struct scsi_host_template* sht, struct pci_dev* pDev)
@@ -934,15 +841,15 @@
* See if we should enable dma64 mode.
*/
if (sizeof(dma_addr_t) > 4 &&
- pci_set_dma_mask(pDev, DMA_BIT_MASK(64)) == 0) {
- if (dma_get_required_mask(&pDev->dev) > DMA_BIT_MASK(32))
- dma64 = 1;
- }
- if (!dma64 && pci_set_dma_mask(pDev, DMA_BIT_MASK(32)) != 0)
+ dma_get_required_mask(&pDev->dev) > DMA_BIT_MASK(32) &&
+ dma_set_mask(&pDev->dev, DMA_BIT_MASK(64)) == 0)
+ dma64 = 1;
+
+ if (!dma64 && dma_set_mask(&pDev->dev, DMA_BIT_MASK(32)) != 0)
return -EINVAL;
/* adapter only supports message blocks below 4GB */
- pci_set_consistent_dma_mask(pDev, DMA_BIT_MASK(32));
+ dma_set_coherent_mask(&pDev->dev, DMA_BIT_MASK(32));
base_addr0_phys = pci_resource_start(pDev,0);
hba_map0_area_size = pci_resource_len(pDev,0);
@@ -1165,7 +1072,7 @@
{
struct adpt_device* d;
- if(chan < 0 || chan >= MAX_CHANNEL)
+ if (chan >= MAX_CHANNEL)
return NULL;
d = pHba->channel[chan].device[id];
@@ -1376,7 +1283,6 @@
printk(KERN_ERR"IOP reset failed - no free memory.\n");
return -ENOMEM;
}
- memset(status,0,4);
msg[0]=EIGHT_WORD_MSG_SIZE|SGL_OFFSET_0;
msg[1]=I2O_CMD_ADAPTER_RESET<<24|HOST_TID<<12|ADAPTER_TID;
@@ -1697,208 +1603,6 @@
return 0;
}
-
-static int adpt_i2o_passthru(adpt_hba* pHba, u32 __user *arg)
-{
- u32 msg[MAX_MESSAGE_SIZE];
- u32* reply = NULL;
- u32 size = 0;
- u32 reply_size = 0;
- u32 __user *user_msg = arg;
- u32 __user * user_reply = NULL;
- void **sg_list = NULL;
- u32 sg_offset = 0;
- u32 sg_count = 0;
- int sg_index = 0;
- u32 i = 0;
- u32 rcode = 0;
- void *p = NULL;
- dma_addr_t addr;
- ulong flags = 0;
-
- memset(&msg, 0, MAX_MESSAGE_SIZE*4);
- // get user msg size in u32s
- if(get_user(size, &user_msg[0])){
- return -EFAULT;
- }
- size = size>>16;
-
- user_reply = &user_msg[size];
- if(size > MAX_MESSAGE_SIZE){
- return -EFAULT;
- }
- size *= 4; // Convert to bytes
-
- /* Copy in the user's I2O command */
- if(copy_from_user(msg, user_msg, size)) {
- return -EFAULT;
- }
- get_user(reply_size, &user_reply[0]);
- reply_size = reply_size>>16;
- if(reply_size > REPLY_FRAME_SIZE){
- reply_size = REPLY_FRAME_SIZE;
- }
- reply_size *= 4;
- reply = kzalloc(REPLY_FRAME_SIZE*4, GFP_KERNEL);
- if(reply == NULL) {
- printk(KERN_WARNING"%s: Could not allocate reply buffer\n",pHba->name);
- return -ENOMEM;
- }
- sg_offset = (msg[0]>>4)&0xf;
- msg[2] = 0x40000000; // IOCTL context
- msg[3] = adpt_ioctl_to_context(pHba, reply);
- if (msg[3] == (u32)-1) {
- rcode = -EBUSY;
- goto free;
- }
-
- sg_list = kcalloc(pHba->sg_tablesize, sizeof(*sg_list), GFP_KERNEL);
- if (!sg_list) {
- rcode = -ENOMEM;
- goto free;
- }
- if(sg_offset) {
- // TODO add 64 bit API
- struct sg_simple_element *sg = (struct sg_simple_element*) (msg+sg_offset);
- sg_count = (size - sg_offset*4) / sizeof(struct sg_simple_element);
- if (sg_count > pHba->sg_tablesize){
- printk(KERN_DEBUG"%s:IOCTL SG List too large (%u)\n", pHba->name,sg_count);
- rcode = -EINVAL;
- goto free;
- }
-
- for(i = 0; i < sg_count; i++) {
- int sg_size;
-
- if (!(sg[i].flag_count & 0x10000000 /*I2O_SGL_FLAGS_SIMPLE_ADDRESS_ELEMENT*/)) {
- printk(KERN_DEBUG"%s:Bad SG element %d - not simple (%x)\n",pHba->name,i, sg[i].flag_count);
- rcode = -EINVAL;
- goto cleanup;
- }
- sg_size = sg[i].flag_count & 0xffffff;
- /* Allocate memory for the transfer */
- p = dma_alloc_coherent(&pHba->pDev->dev, sg_size, &addr, GFP_KERNEL);
- if(!p) {
- printk(KERN_DEBUG"%s: Could not allocate SG buffer - size = %d buffer number %d of %d\n",
- pHba->name,sg_size,i,sg_count);
- rcode = -ENOMEM;
- goto cleanup;
- }
- sg_list[sg_index++] = p; // sglist indexed with input frame, not our internal frame.
- /* Copy in the user's SG buffer if necessary */
- if(sg[i].flag_count & 0x04000000 /*I2O_SGL_FLAGS_DIR*/) {
- // sg_simple_element API is 32 bit
- if (copy_from_user(p,(void __user *)(ulong)sg[i].addr_bus, sg_size)) {
- printk(KERN_DEBUG"%s: Could not copy SG buf %d FROM user\n",pHba->name,i);
- rcode = -EFAULT;
- goto cleanup;
- }
- }
- /* sg_simple_element API is 32 bit, but addr < 4GB */
- sg[i].addr_bus = addr;
- }
- }
-
- do {
- /*
- * Stop any new commands from enterring the
- * controller while processing the ioctl
- */
- if (pHba->host) {
- scsi_block_requests(pHba->host);
- spin_lock_irqsave(pHba->host->host_lock, flags);
- }
- rcode = adpt_i2o_post_wait(pHba, msg, size, FOREVER);
- if (rcode != 0)
- printk("adpt_i2o_passthru: post wait failed %d %p\n",
- rcode, reply);
- if (pHba->host) {
- spin_unlock_irqrestore(pHba->host->host_lock, flags);
- scsi_unblock_requests(pHba->host);
- }
- } while (rcode == -ETIMEDOUT);
-
- if(rcode){
- goto cleanup;
- }
-
- if(sg_offset) {
- /* Copy back the Scatter Gather buffers back to user space */
- u32 j;
- // TODO add 64 bit API
- struct sg_simple_element* sg;
- int sg_size;
-
- // re-acquire the original message to handle correctly the sg copy operation
- memset(&msg, 0, MAX_MESSAGE_SIZE*4);
- // get user msg size in u32s
- if(get_user(size, &user_msg[0])){
- rcode = -EFAULT;
- goto cleanup;
- }
- size = size>>16;
- size *= 4;
- if (size > MAX_MESSAGE_SIZE) {
- rcode = -EINVAL;
- goto cleanup;
- }
- /* Copy in the user's I2O command */
- if (copy_from_user (msg, user_msg, size)) {
- rcode = -EFAULT;
- goto cleanup;
- }
- sg_count = (size - sg_offset*4) / sizeof(struct sg_simple_element);
-
- // TODO add 64 bit API
- sg = (struct sg_simple_element*)(msg + sg_offset);
- for (j = 0; j < sg_count; j++) {
- /* Copy out the SG list to user's buffer if necessary */
- if(! (sg[j].flag_count & 0x4000000 /*I2O_SGL_FLAGS_DIR*/)) {
- sg_size = sg[j].flag_count & 0xffffff;
- // sg_simple_element API is 32 bit
- if (copy_to_user((void __user *)(ulong)sg[j].addr_bus,sg_list[j], sg_size)) {
- printk(KERN_WARNING"%s: Could not copy %p TO user %x\n",pHba->name, sg_list[j], sg[j].addr_bus);
- rcode = -EFAULT;
- goto cleanup;
- }
- }
- }
- }
-
- /* Copy back the reply to user space */
- if (reply_size) {
- // we wrote our own values for context - now restore the user supplied ones
- if(copy_from_user(reply+2, user_msg+2, sizeof(u32)*2)) {
- printk(KERN_WARNING"%s: Could not copy message context FROM user\n",pHba->name);
- rcode = -EFAULT;
- }
- if(copy_to_user(user_reply, reply, reply_size)) {
- printk(KERN_WARNING"%s: Could not copy reply TO user\n",pHba->name);
- rcode = -EFAULT;
- }
- }
-
-
-cleanup:
- if (rcode != -ETIME && rcode != -EINTR) {
- struct sg_simple_element *sg =
- (struct sg_simple_element*) (msg +sg_offset);
- while(sg_index) {
- if(sg_list[--sg_index]) {
- dma_free_coherent(&pHba->pDev->dev,
- sg[sg_index].flag_count & 0xffffff,
- sg_list[sg_index],
- sg[sg_index].addr_bus);
- }
- }
- }
-
-free:
- kfree(sg_list);
- kfree(reply);
- return rcode;
-}
-
#if defined __ia64__
static void adpt_ia64_info(sysInfo_S* si)
{
@@ -2025,8 +1729,6 @@
return -EFAULT;
}
break;
- case I2OUSRCMD:
- return adpt_i2o_passthru(pHba, argp);
case DPT_CTRLINFO:{
drvrHBAinfo_S HbaInfo;
@@ -2163,7 +1865,7 @@
} else {
/* Ick, we should *never* be here */
printk(KERN_ERR "dpti: reply frame not from pool\n");
- reply = (u8 *)bus_to_virt(m);
+ continue;
}
if (readl(reply) & MSG_FAIL) {
@@ -2183,13 +1885,6 @@
adpt_send_nop(pHba, old_m);
}
context = readl(reply+8);
- if(context & 0x40000000){ // IOCTL
- void *p = adpt_ioctl_from_context(pHba, readl(reply+12));
- if( p != NULL) {
- memcpy_fromio(p, reply, REPLY_FRAME_SIZE * 4);
- }
- // All IOCTLs will also be post wait
- }
if(context & 0x80000000){ // Post wait message
status = readl(reply+16);
if(status >> 24){
@@ -2197,21 +1892,26 @@
} else {
status = I2O_POST_WAIT_OK;
}
- if(!(context & 0x40000000)) {
- cmd = adpt_cmd_from_context(pHba,
- readl(reply+12));
- if(cmd != NULL) {
- printk(KERN_WARNING"%s: Apparent SCSI cmd in Post Wait Context - cmd=%p context=%x\n", pHba->name, cmd, context);
- }
+ /*
+ * The request tag is one less than the command tag
+ * as the firmware might treat a 0 tag as invalid
+ */
+ cmd = scsi_host_find_tag(pHba->host,
+ readl(reply + 12) - 1);
+ if(cmd != NULL) {
+ printk(KERN_WARNING"%s: Apparent SCSI cmd in Post Wait Context - cmd=%p context=%x\n", pHba->name, cmd, context);
}
adpt_i2o_post_wait_complete(context, status);
} else { // SCSI message
- cmd = adpt_cmd_from_context (pHba, readl(reply+12));
+ /*
+ * The request tag is one less than the command tag
+ * as the firmware might treat a 0 tag as invalid
+ */
+ cmd = scsi_host_find_tag(pHba->host,
+ readl(reply + 12) - 1);
if(cmd != NULL){
scsi_dma_unmap(cmd);
- if(cmd->serial_number != 0) { // If not timedout
- adpt_i2o_to_scsi(reply, cmd);
- }
+ adpt_i2o_scsi_complete(reply, cmd);
}
}
writel(m, pHba->reply_port);
@@ -2277,7 +1977,8 @@
// I2O_CMD_SCSI_EXEC
msg[1] = ((0xff<<24)|(HOST_TID<<12)|d->tid);
msg[2] = 0;
- msg[3] = adpt_cmd_to_context(cmd); /* Want SCSI control block back */
+ /* Add 1 to avoid firmware treating it as invalid command */
+ msg[3] = cmd->request->tag + 1;
// Our cards use the transaction context as the tag for queueing
// Adaptec/DPT Private stuff
msg[4] = I2O_CMD_SCSI_EXEC|(DPT_ORGANIZATION_ID<<16);
@@ -2372,13 +2073,12 @@
host->unique_id = (u32)sys_tbl_pa + pHba->unit;
host->sg_tablesize = pHba->sg_tablesize;
host->can_queue = pHba->post_fifo_size;
- host->use_cmd_list = 1;
return 0;
}
-static s32 adpt_i2o_to_scsi(void __iomem *reply, struct scsi_cmnd* cmd)
+static void adpt_i2o_scsi_complete(void __iomem *reply, struct scsi_cmnd *cmd)
{
adpt_hba* pHba;
u32 hba_status;
@@ -2496,7 +2196,6 @@
if(cmd->scsi_done != NULL){
cmd->scsi_done(cmd);
}
- return cmd->result;
}
@@ -2684,26 +2383,6 @@
return 0;
}
-static void adpt_fail_posted_scbs(adpt_hba* pHba)
-{
- struct scsi_cmnd* cmd = NULL;
- struct scsi_device* d = NULL;
-
- shost_for_each_device(d, pHba->host) {
- unsigned long flags;
- spin_lock_irqsave(&d->list_lock, flags);
- list_for_each_entry(cmd, &d->cmd_list, list) {
- if(cmd->serial_number == 0){
- continue;
- }
- cmd->result = (DID_OK << 16) | (QUEUE_FULL <<1);
- cmd->scsi_done(cmd);
- }
- spin_unlock_irqrestore(&d->list_lock, flags);
- }
-}
-
-
/*============================================================================
* Routines from i2o subsystem
*============================================================================
@@ -2843,7 +2522,6 @@
pHba->name);
return -ENOMEM;
}
- memset(status, 0, 4);
writel(EIGHT_WORD_MSG_SIZE| SGL_OFFSET_6, &msg[0]);
writel(I2O_CMD_OUTBOUND_INIT<<24 | HOST_TID<<12 | ADAPTER_TID, &msg[1]);
@@ -2897,7 +2575,6 @@
printk(KERN_ERR "%s: Could not allocate reply pool\n", pHba->name);
return -ENOMEM;
}
- memset(pHba->reply_pool, 0 , pHba->reply_fifo_size * REPLY_FRAME_SIZE * 4);
for(i = 0; i < pHba->reply_fifo_size; i++) {
writel(pHba->reply_pool_pa + (i * REPLY_FRAME_SIZE * 4),
@@ -3132,7 +2809,6 @@
printk(KERN_WARNING "SysTab Set failed. Out of memory.\n");
return -ENOMEM;
}
- memset(sys_tbl, 0, sys_tbl_len);
sys_tbl->num_entries = hba_count;
sys_tbl->version = I2OVERSION;
@@ -3427,7 +3103,7 @@
return -((res[1] >> 16) & 0xFF); /* -BlockStatus */
}
- return 4 + ((res[1] & 0x0000FFFF) << 2); /* bytes used in resblk */
+ return 4 + ((res[1] & 0x0000FFFF) << 2); /* bytes used in resblk */
}
@@ -3500,8 +3176,8 @@
static int adpt_i2o_systab_send(adpt_hba* pHba)
{
- u32 msg[12];
- int ret;
+ u32 msg[12];
+ int ret;
msg[0] = I2O_MESSAGE_SIZE(12) | SGL_OFFSET_6;
msg[1] = I2O_CMD_SYS_TAB_SET<<24 | HOST_TID<<12 | ADAPTER_TID;
@@ -3569,7 +3245,6 @@
.slave_configure = adpt_slave_configure,
.can_queue = MAX_TO_IOP_MESSAGES,
.this_id = 7,
- .use_clustering = ENABLE_CLUSTERING,
};
static int __init adpt_init(void)
--
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