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Message-ID: <20130411133001.32763.78829.stgit@warthog.procyon.org.uk>
Date: Thu, 11 Apr 2013 14:30:01 +0100
From: David Howells <dhowells@...hat.com>
To: linux-kernel@...r.kernel.org
Cc: Neela Syam Kolli <megaraidlinux@....com>, viro@...IV.linux.org.uk,
"James E.J. Bottomley" <JBottomley@...allels.com>,
linux-scsi@...r.kernel.org
Subject: [PATCH 18/26] megaraid: Don't use create_proc_read_entry() [RFC]
Don't use create_proc_read_entry() as that is deprecated, but rather use
proc_create_data() and seq_file instead.
Signed-off-by: David Howells <dhowells@...hat.com>
cc: Neela Syam Kolli <megaraidlinux@....com>
cc: James E.J. Bottomley <JBottomley@...allels.com>
cc: linux-scsi@...r.kernel.org
---
drivers/scsi/megaraid.c | 1041 +++++++++++++++++------------------------------
drivers/scsi/megaraid.h | 17 -
2 files changed, 383 insertions(+), 675 deletions(-)
diff --git a/drivers/scsi/megaraid.c b/drivers/scsi/megaraid.c
index 9504ec0..8230ce3 100644
--- a/drivers/scsi/megaraid.c
+++ b/drivers/scsi/megaraid.c
@@ -39,6 +39,7 @@
#include <linux/completion.h>
#include <linux/delay.h>
#include <linux/proc_fs.h>
+#include <linux/seq_file.h>
#include <linux/reboot.h>
#include <linux/module.h>
#include <linux/list.h>
@@ -2069,385 +2070,201 @@ mega_free_inquiry(void *inquiry, dma_addr_t dma_handle, struct pci_dev *pdev)
#ifdef CONFIG_PROC_FS
/* Following code handles /proc fs */
-#define CREATE_READ_PROC(string, func) create_proc_read_entry(string, \
- S_IRUSR | S_IFREG, \
- controller_proc_dir_entry, \
- func, adapter)
-
-/**
- * mega_create_proc_entry()
- * @index - index in soft state array
- * @parent - parent node for this /proc entry
- *
- * Creates /proc entries for our controllers.
- */
-static void
-mega_create_proc_entry(int index, struct proc_dir_entry *parent)
-{
- struct proc_dir_entry *controller_proc_dir_entry = NULL;
- u8 string[64] = { 0 };
- adapter_t *adapter = hba_soft_state[index];
-
- sprintf(string, "hba%d", adapter->host->host_no);
-
- controller_proc_dir_entry =
- adapter->controller_proc_dir_entry = proc_mkdir(string, parent);
-
- if(!controller_proc_dir_entry) {
- printk(KERN_WARNING "\nmegaraid: proc_mkdir failed\n");
- return;
- }
- adapter->proc_read = CREATE_READ_PROC("config", proc_read_config);
- adapter->proc_stat = CREATE_READ_PROC("stat", proc_read_stat);
- adapter->proc_mbox = CREATE_READ_PROC("mailbox", proc_read_mbox);
-#if MEGA_HAVE_ENH_PROC
- adapter->proc_rr = CREATE_READ_PROC("rebuild-rate", proc_rebuild_rate);
- adapter->proc_battery = CREATE_READ_PROC("battery-status",
- proc_battery);
-
- /*
- * Display each physical drive on its channel
- */
- adapter->proc_pdrvstat[0] = CREATE_READ_PROC("diskdrives-ch0",
- proc_pdrv_ch0);
- adapter->proc_pdrvstat[1] = CREATE_READ_PROC("diskdrives-ch1",
- proc_pdrv_ch1);
- adapter->proc_pdrvstat[2] = CREATE_READ_PROC("diskdrives-ch2",
- proc_pdrv_ch2);
- adapter->proc_pdrvstat[3] = CREATE_READ_PROC("diskdrives-ch3",
- proc_pdrv_ch3);
-
- /*
- * Display a set of up to 10 logical drive through each of following
- * /proc entries
- */
- adapter->proc_rdrvstat[0] = CREATE_READ_PROC("raiddrives-0-9",
- proc_rdrv_10);
- adapter->proc_rdrvstat[1] = CREATE_READ_PROC("raiddrives-10-19",
- proc_rdrv_20);
- adapter->proc_rdrvstat[2] = CREATE_READ_PROC("raiddrives-20-29",
- proc_rdrv_30);
- adapter->proc_rdrvstat[3] = CREATE_READ_PROC("raiddrives-30-39",
- proc_rdrv_40);
-#endif
-}
-
-
/**
- * proc_read_config()
- * @page - buffer to write the data in
- * @start - where the actual data has been written in page
- * @offset - same meaning as the read system call
- * @count - same meaning as the read system call
- * @eof - set if no more data needs to be returned
- * @data - pointer to our soft state
+ * proc_show_config()
+ * @m - Synthetic file construction data
+ * @v - File iterator
*
* Display configuration information about the controller.
*/
static int
-proc_read_config(char *page, char **start, off_t offset, int count, int *eof,
- void *data)
+proc_show_config(struct seq_file *m, void *v)
{
- adapter_t *adapter = (adapter_t *)data;
- int len = 0;
-
- len += sprintf(page+len, "%s", MEGARAID_VERSION);
+ adapter_t *adapter = m->private;
+ seq_puts(m, MEGARAID_VERSION);
if(adapter->product_info.product_name[0])
- len += sprintf(page+len, "%s\n",
- adapter->product_info.product_name);
-
- len += sprintf(page+len, "Controller Type: ");
+ seq_printf(m, "%s\n", adapter->product_info.product_name);
- if( adapter->flag & BOARD_MEMMAP ) {
- len += sprintf(page+len,
- "438/466/467/471/493/518/520/531/532\n");
- }
- else {
- len += sprintf(page+len,
- "418/428/434\n");
- }
+ seq_puts(m, "Controller Type: ");
- if(adapter->flag & BOARD_40LD) {
- len += sprintf(page+len,
- "Controller Supports 40 Logical Drives\n");
- }
+ if( adapter->flag & BOARD_MEMMAP )
+ seq_puts(m, "438/466/467/471/493/518/520/531/532\n");
+ else
+ seq_puts(m, "418/428/434\n");
- if(adapter->flag & BOARD_64BIT) {
- len += sprintf(page+len,
- "Controller capable of 64-bit memory addressing\n");
- }
- if( adapter->has_64bit_addr ) {
- len += sprintf(page+len,
- "Controller using 64-bit memory addressing\n");
- }
- else {
- len += sprintf(page+len,
- "Controller is not using 64-bit memory addressing\n");
- }
+ if(adapter->flag & BOARD_40LD)
+ seq_puts(m, "Controller Supports 40 Logical Drives\n");
- len += sprintf(page+len, "Base = %08lx, Irq = %d, ", adapter->base,
- adapter->host->irq);
-
- len += sprintf(page+len, "Logical Drives = %d, Channels = %d\n",
- adapter->numldrv, adapter->product_info.nchannels);
-
- len += sprintf(page+len, "Version =%s:%s, DRAM = %dMb\n",
- adapter->fw_version, adapter->bios_version,
- adapter->product_info.dram_size);
-
- len += sprintf(page+len,
- "Controller Queue Depth = %d, Driver Queue Depth = %d\n",
- adapter->product_info.max_commands, adapter->max_cmds);
-
- len += sprintf(page+len, "support_ext_cdb = %d\n",
- adapter->support_ext_cdb);
- len += sprintf(page+len, "support_random_del = %d\n",
- adapter->support_random_del);
- len += sprintf(page+len, "boot_ldrv_enabled = %d\n",
- adapter->boot_ldrv_enabled);
- len += sprintf(page+len, "boot_ldrv = %d\n",
- adapter->boot_ldrv);
- len += sprintf(page+len, "boot_pdrv_enabled = %d\n",
- adapter->boot_pdrv_enabled);
- len += sprintf(page+len, "boot_pdrv_ch = %d\n",
- adapter->boot_pdrv_ch);
- len += sprintf(page+len, "boot_pdrv_tgt = %d\n",
- adapter->boot_pdrv_tgt);
- len += sprintf(page+len, "quiescent = %d\n",
- atomic_read(&adapter->quiescent));
- len += sprintf(page+len, "has_cluster = %d\n",
- adapter->has_cluster);
-
- len += sprintf(page+len, "\nModule Parameters:\n");
- len += sprintf(page+len, "max_cmd_per_lun = %d\n",
- max_cmd_per_lun);
- len += sprintf(page+len, "max_sectors_per_io = %d\n",
- max_sectors_per_io);
-
- *eof = 1;
-
- return len;
+ if(adapter->flag & BOARD_64BIT)
+ seq_puts(m, "Controller capable of 64-bit memory addressing\n");
+ if( adapter->has_64bit_addr )
+ seq_puts(m, "Controller using 64-bit memory addressing\n");
+ else
+ seq_puts(m, "Controller is not using 64-bit memory addressing\n");
+
+ seq_printf(m, "Base = %08lx, Irq = %d, ",
+ adapter->base, adapter->host->irq);
+
+ seq_printf(m, "Logical Drives = %d, Channels = %d\n",
+ adapter->numldrv, adapter->product_info.nchannels);
+
+ seq_printf(m, "Version =%s:%s, DRAM = %dMb\n",
+ adapter->fw_version, adapter->bios_version,
+ adapter->product_info.dram_size);
+
+ seq_printf(m, "Controller Queue Depth = %d, Driver Queue Depth = %d\n",
+ adapter->product_info.max_commands, adapter->max_cmds);
+
+ seq_printf(m, "support_ext_cdb = %d\n", adapter->support_ext_cdb);
+ seq_printf(m, "support_random_del = %d\n", adapter->support_random_del);
+ seq_printf(m, "boot_ldrv_enabled = %d\n", adapter->boot_ldrv_enabled);
+ seq_printf(m, "boot_ldrv = %d\n", adapter->boot_ldrv);
+ seq_printf(m, "boot_pdrv_enabled = %d\n", adapter->boot_pdrv_enabled);
+ seq_printf(m, "boot_pdrv_ch = %d\n", adapter->boot_pdrv_ch);
+ seq_printf(m, "boot_pdrv_tgt = %d\n", adapter->boot_pdrv_tgt);
+ seq_printf(m, "quiescent = %d\n",
+ atomic_read(&adapter->quiescent));
+ seq_printf(m, "has_cluster = %d\n", adapter->has_cluster);
+
+ seq_puts(m, "\nModule Parameters:\n");
+ seq_printf(m, "max_cmd_per_lun = %d\n", max_cmd_per_lun);
+ seq_printf(m, "max_sectors_per_io = %d\n", max_sectors_per_io);
+ return 0;
}
-
-
/**
- * proc_read_stat()
- * @page - buffer to write the data in
- * @start - where the actual data has been written in page
- * @offset - same meaning as the read system call
- * @count - same meaning as the read system call
- * @eof - set if no more data needs to be returned
- * @data - pointer to our soft state
+ * proc_show_stat()
+ * @m - Synthetic file construction data
+ * @v - File iterator
*
- * Diaplay statistical information about the I/O activity.
+ * Display statistical information about the I/O activity.
*/
static int
-proc_read_stat(char *page, char **start, off_t offset, int count, int *eof,
- void *data)
+proc_show_stat(struct seq_file *m, void *v)
{
- adapter_t *adapter;
- int len;
+ adapter_t *adapter = m->private;
+#if MEGA_HAVE_STATS
int i;
+#endif
- i = 0; /* avoid compilation warnings */
- len = 0;
- adapter = (adapter_t *)data;
-
- len = sprintf(page, "Statistical Information for this controller\n");
- len += sprintf(page+len, "pend_cmds = %d\n",
- atomic_read(&adapter->pend_cmds));
+ seq_puts(m, "Statistical Information for this controller\n");
+ seq_printf(m, "pend_cmds = %d\n", atomic_read(&adapter->pend_cmds));
#if MEGA_HAVE_STATS
for(i = 0; i < adapter->numldrv; i++) {
- len += sprintf(page+len, "Logical Drive %d:\n", i);
-
- len += sprintf(page+len,
- "\tReads Issued = %lu, Writes Issued = %lu\n",
- adapter->nreads[i], adapter->nwrites[i]);
-
- len += sprintf(page+len,
- "\tSectors Read = %lu, Sectors Written = %lu\n",
- adapter->nreadblocks[i], adapter->nwriteblocks[i]);
-
- len += sprintf(page+len,
- "\tRead errors = %lu, Write errors = %lu\n\n",
- adapter->rd_errors[i], adapter->wr_errors[i]);
+ seq_printf(m, "Logical Drive %d:\n", i);
+ seq_printf(m, "\tReads Issued = %lu, Writes Issued = %lu\n",
+ adapter->nreads[i], adapter->nwrites[i]);
+ seq_printf(m, "\tSectors Read = %lu, Sectors Written = %lu\n",
+ adapter->nreadblocks[i], adapter->nwriteblocks[i]);
+ seq_printf(m, "\tRead errors = %lu, Write errors = %lu\n\n",
+ adapter->rd_errors[i], adapter->wr_errors[i]);
}
#else
- len += sprintf(page+len,
- "IO and error counters not compiled in driver.\n");
+ seq_puts(m, "IO and error counters not compiled in driver.\n");
#endif
-
- *eof = 1;
-
- return len;
+ return 0;
}
/**
- * proc_read_mbox()
- * @page - buffer to write the data in
- * @start - where the actual data has been written in page
- * @offset - same meaning as the read system call
- * @count - same meaning as the read system call
- * @eof - set if no more data needs to be returned
- * @data - pointer to our soft state
+ * proc_show_mbox()
+ * @m - Synthetic file construction data
+ * @v - File iterator
*
* Display mailbox information for the last command issued. This information
* is good for debugging.
*/
static int
-proc_read_mbox(char *page, char **start, off_t offset, int count, int *eof,
- void *data)
+proc_show_mbox(struct seq_file *m, void *v)
{
-
- adapter_t *adapter = (adapter_t *)data;
+ adapter_t *adapter = m->private;
volatile mbox_t *mbox = adapter->mbox;
- int len = 0;
-
- len = sprintf(page, "Contents of Mail Box Structure\n");
- len += sprintf(page+len, " Fw Command = 0x%02x\n",
- mbox->m_out.cmd);
- len += sprintf(page+len, " Cmd Sequence = 0x%02x\n",
- mbox->m_out.cmdid);
- len += sprintf(page+len, " No of Sectors= %04d\n",
- mbox->m_out.numsectors);
- len += sprintf(page+len, " LBA = 0x%02x\n",
- mbox->m_out.lba);
- len += sprintf(page+len, " DTA = 0x%08x\n",
- mbox->m_out.xferaddr);
- len += sprintf(page+len, " Logical Drive= 0x%02x\n",
- mbox->m_out.logdrv);
- len += sprintf(page+len, " No of SG Elmt= 0x%02x\n",
- mbox->m_out.numsgelements);
- len += sprintf(page+len, " Busy = %01x\n",
- mbox->m_in.busy);
- len += sprintf(page+len, " Status = 0x%02x\n",
- mbox->m_in.status);
-
- *eof = 1;
-
- return len;
+
+ seq_puts(m, "Contents of Mail Box Structure\n");
+ seq_printf(m, " Fw Command = 0x%02x\n", mbox->m_out.cmd);
+ seq_printf(m, " Cmd Sequence = 0x%02x\n", mbox->m_out.cmdid);
+ seq_printf(m, " No of Sectors= %04d\n", mbox->m_out.numsectors);
+ seq_printf(m, " LBA = 0x%02x\n", mbox->m_out.lba);
+ seq_printf(m, " DTA = 0x%08x\n", mbox->m_out.xferaddr);
+ seq_printf(m, " Logical Drive= 0x%02x\n", mbox->m_out.logdrv);
+ seq_printf(m, " No of SG Elmt= 0x%02x\n", mbox->m_out.numsgelements);
+ seq_printf(m, " Busy = %01x\n", mbox->m_in.busy);
+ seq_printf(m, " Status = 0x%02x\n", mbox->m_in.status);
+ return 0;
}
/**
- * proc_rebuild_rate()
- * @page - buffer to write the data in
- * @start - where the actual data has been written in page
- * @offset - same meaning as the read system call
- * @count - same meaning as the read system call
- * @eof - set if no more data needs to be returned
- * @data - pointer to our soft state
+ * proc_show_rebuild_rate()
+ * @m - Synthetic file construction data
+ * @v - File iterator
*
* Display current rebuild rate
*/
static int
-proc_rebuild_rate(char *page, char **start, off_t offset, int count, int *eof,
- void *data)
+proc_show_rebuild_rate(struct seq_file *m, void *v)
{
- adapter_t *adapter = (adapter_t *)data;
+ adapter_t *adapter = m->private;
dma_addr_t dma_handle;
caddr_t inquiry;
struct pci_dev *pdev;
- int len = 0;
- if( make_local_pdev(adapter, &pdev) != 0 ) {
- *eof = 1;
- return len;
- }
+ if( make_local_pdev(adapter, &pdev) != 0 )
+ return 0;
- if( (inquiry = mega_allocate_inquiry(&dma_handle, pdev)) == NULL ) {
- free_local_pdev(pdev);
- *eof = 1;
- return len;
- }
+ if( (inquiry = mega_allocate_inquiry(&dma_handle, pdev)) == NULL )
+ goto free_pdev;
if( mega_adapinq(adapter, dma_handle) != 0 ) {
-
- len = sprintf(page, "Adapter inquiry failed.\n");
-
+ seq_puts(m, "Adapter inquiry failed.\n");
printk(KERN_WARNING "megaraid: inquiry failed.\n");
-
- mega_free_inquiry(inquiry, dma_handle, pdev);
-
- free_local_pdev(pdev);
-
- *eof = 1;
-
- return len;
+ goto free_inquiry;
}
- if( adapter->flag & BOARD_40LD ) {
- len = sprintf(page, "Rebuild Rate: [%d%%]\n",
- ((mega_inquiry3 *)inquiry)->rebuild_rate);
- }
- else {
- len = sprintf(page, "Rebuild Rate: [%d%%]\n",
+ if( adapter->flag & BOARD_40LD )
+ seq_printf(m, "Rebuild Rate: [%d%%]\n",
+ ((mega_inquiry3 *)inquiry)->rebuild_rate);
+ else
+ seq_printf(m, "Rebuild Rate: [%d%%]\n",
((mraid_ext_inquiry *)
- inquiry)->raid_inq.adapter_info.rebuild_rate);
- }
-
+ inquiry)->raid_inq.adapter_info.rebuild_rate);
+free_inquiry:
mega_free_inquiry(inquiry, dma_handle, pdev);
-
+free_pdev:
free_local_pdev(pdev);
-
- *eof = 1;
-
- return len;
+ return 0;
}
/**
- * proc_battery()
- * @page - buffer to write the data in
- * @start - where the actual data has been written in page
- * @offset - same meaning as the read system call
- * @count - same meaning as the read system call
- * @eof - set if no more data needs to be returned
- * @data - pointer to our soft state
+ * proc_show_battery()
+ * @m - Synthetic file construction data
+ * @v - File iterator
*
* Display information about the battery module on the controller.
*/
static int
-proc_battery(char *page, char **start, off_t offset, int count, int *eof,
- void *data)
+proc_show_battery(struct seq_file *m, void *v)
{
- adapter_t *adapter = (adapter_t *)data;
+ adapter_t *adapter = m->private;
dma_addr_t dma_handle;
caddr_t inquiry;
struct pci_dev *pdev;
- u8 battery_status = 0;
- char str[256];
- int len = 0;
+ u8 battery_status;
- if( make_local_pdev(adapter, &pdev) != 0 ) {
- *eof = 1;
- return len;
- }
+ if( make_local_pdev(adapter, &pdev) != 0 )
+ return 0;
- if( (inquiry = mega_allocate_inquiry(&dma_handle, pdev)) == NULL ) {
- free_local_pdev(pdev);
- *eof = 1;
- return len;
- }
+ if( (inquiry = mega_allocate_inquiry(&dma_handle, pdev)) == NULL )
+ goto free_pdev;
if( mega_adapinq(adapter, dma_handle) != 0 ) {
-
- len = sprintf(page, "Adapter inquiry failed.\n");
-
+ seq_printf(m, "Adapter inquiry failed.\n");
printk(KERN_WARNING "megaraid: inquiry failed.\n");
-
- mega_free_inquiry(inquiry, dma_handle, pdev);
-
- free_local_pdev(pdev);
-
- *eof = 1;
-
- return len;
+ goto free_inquiry;
}
if( adapter->flag & BOARD_40LD ) {
@@ -2461,146 +2278,80 @@ proc_battery(char *page, char **start, off_t offset, int count, int *eof,
/*
* Decode the battery status
*/
- sprintf(str, "Battery Status:[%d]", battery_status);
+ seq_printf(m, "Battery Status:[%d]", battery_status);
if(battery_status == MEGA_BATT_CHARGE_DONE)
- strcat(str, " Charge Done");
+ seq_puts(m, " Charge Done");
if(battery_status & MEGA_BATT_MODULE_MISSING)
- strcat(str, " Module Missing");
+ seq_puts(m, " Module Missing");
if(battery_status & MEGA_BATT_LOW_VOLTAGE)
- strcat(str, " Low Voltage");
+ seq_puts(m, " Low Voltage");
if(battery_status & MEGA_BATT_TEMP_HIGH)
- strcat(str, " Temperature High");
+ seq_puts(m, " Temperature High");
if(battery_status & MEGA_BATT_PACK_MISSING)
- strcat(str, " Pack Missing");
+ seq_puts(m, " Pack Missing");
if(battery_status & MEGA_BATT_CHARGE_INPROG)
- strcat(str, " Charge In-progress");
+ seq_puts(m, " Charge In-progress");
if(battery_status & MEGA_BATT_CHARGE_FAIL)
- strcat(str, " Charge Fail");
+ seq_puts(m, " Charge Fail");
if(battery_status & MEGA_BATT_CYCLES_EXCEEDED)
- strcat(str, " Cycles Exceeded");
-
- len = sprintf(page, "%s\n", str);
+ seq_puts(m, " Cycles Exceeded");
+ seq_putc(m, '\n');
+free_inquiry:
mega_free_inquiry(inquiry, dma_handle, pdev);
-
+free_pdev:
free_local_pdev(pdev);
-
- *eof = 1;
-
- return len;
-}
-
-
-/**
- * proc_pdrv_ch0()
- * @page - buffer to write the data in
- * @start - where the actual data has been written in page
- * @offset - same meaning as the read system call
- * @count - same meaning as the read system call
- * @eof - set if no more data needs to be returned
- * @data - pointer to our soft state
- *
- * Display information about the physical drives on physical channel 0.
- */
-static int
-proc_pdrv_ch0(char *page, char **start, off_t offset, int count, int *eof,
- void *data)
-{
- adapter_t *adapter = (adapter_t *)data;
-
- *eof = 1;
-
- return (proc_pdrv(adapter, page, 0));
-}
-
-
-/**
- * proc_pdrv_ch1()
- * @page - buffer to write the data in
- * @start - where the actual data has been written in page
- * @offset - same meaning as the read system call
- * @count - same meaning as the read system call
- * @eof - set if no more data needs to be returned
- * @data - pointer to our soft state
- *
- * Display information about the physical drives on physical channel 1.
- */
-static int
-proc_pdrv_ch1(char *page, char **start, off_t offset, int count, int *eof,
- void *data)
-{
- adapter_t *adapter = (adapter_t *)data;
-
- *eof = 1;
-
- return (proc_pdrv(adapter, page, 1));
+ return 0;
}
-/**
- * proc_pdrv_ch2()
- * @page - buffer to write the data in
- * @start - where the actual data has been written in page
- * @offset - same meaning as the read system call
- * @count - same meaning as the read system call
- * @eof - set if no more data needs to be returned
- * @data - pointer to our soft state
- *
- * Display information about the physical drives on physical channel 2.
+/*
+ * Display scsi inquiry
*/
-static int
-proc_pdrv_ch2(char *page, char **start, off_t offset, int count, int *eof,
- void *data)
+static void
+mega_print_inquiry(struct seq_file *m, char *scsi_inq)
{
- adapter_t *adapter = (adapter_t *)data;
-
- *eof = 1;
-
- return (proc_pdrv(adapter, page, 2));
-}
+ int i;
+ seq_puts(m, " Vendor: ");
+ seq_write(m, scsi_inq + 8, 8);
+ seq_puts(m, " Model: ");
+ seq_write(m, scsi_inq + 16, 16);
+ seq_puts(m, " Rev: ");
+ seq_write(m, scsi_inq + 32, 4);
+ seq_putc(m, '\n');
-/**
- * proc_pdrv_ch3()
- * @page - buffer to write the data in
- * @start - where the actual data has been written in page
- * @offset - same meaning as the read system call
- * @count - same meaning as the read system call
- * @eof - set if no more data needs to be returned
- * @data - pointer to our soft state
- *
- * Display information about the physical drives on physical channel 3.
- */
-static int
-proc_pdrv_ch3(char *page, char **start, off_t offset, int count, int *eof,
- void *data)
-{
- adapter_t *adapter = (adapter_t *)data;
+ i = scsi_inq[0] & 0x1f;
+ seq_printf(m, " Type: %s ", scsi_device_type(i));
- *eof = 1;
+ seq_printf(m, " ANSI SCSI revision: %02x",
+ scsi_inq[2] & 0x07);
- return (proc_pdrv(adapter, page, 3));
+ if( (scsi_inq[2] & 0x07) == 1 && (scsi_inq[3] & 0x0f) == 1 )
+ seq_puts(m, " CCS\n");
+ else
+ seq_putc(m, '\n');
}
-
/**
- * proc_pdrv()
+ * proc_show_pdrv()
+ * @m - Synthetic file construction data
* @page - buffer to write the data in
* @adapter - pointer to our soft state
*
* Display information about the physical drives.
*/
static int
-proc_pdrv(adapter_t *adapter, char *page, int channel)
+proc_show_pdrv(struct seq_file *m, adapter_t *adapter, int channel)
{
dma_addr_t dma_handle;
char *scsi_inq;
@@ -2611,32 +2362,24 @@ proc_pdrv(adapter_t *adapter, char *page, int channel)
u8 state;
int tgt;
int max_channels;
- int len = 0;
- char str[80];
int i;
- if( make_local_pdev(adapter, &pdev) != 0 ) {
- return len;
- }
+ if( make_local_pdev(adapter, &pdev) != 0 )
+ return 0;
- if( (inquiry = mega_allocate_inquiry(&dma_handle, pdev)) == NULL ) {
+ if( (inquiry = mega_allocate_inquiry(&dma_handle, pdev)) == NULL )
goto free_pdev;
- }
if( mega_adapinq(adapter, dma_handle) != 0 ) {
- len = sprintf(page, "Adapter inquiry failed.\n");
-
+ seq_puts(m, "Adapter inquiry failed.\n");
printk(KERN_WARNING "megaraid: inquiry failed.\n");
-
goto free_inquiry;
}
scsi_inq = pci_alloc_consistent(pdev, 256, &scsi_inq_dma_handle);
-
if( scsi_inq == NULL ) {
- len = sprintf(page, "memory not available for scsi inq.\n");
-
+ seq_puts(m, "memory not available for scsi inq.\n");
goto free_inquiry;
}
@@ -2659,39 +2402,31 @@ proc_pdrv(adapter_t *adapter, char *page, int channel)
i = channel*16 + tgt;
state = *(pdrv_state + i);
-
switch( state & 0x0F ) {
-
case PDRV_ONLINE:
- sprintf(str,
- "Channel:%2d Id:%2d State: Online",
- channel, tgt);
+ seq_printf(m, "Channel:%2d Id:%2d State: Online",
+ channel, tgt);
break;
case PDRV_FAILED:
- sprintf(str,
- "Channel:%2d Id:%2d State: Failed",
- channel, tgt);
+ seq_printf(m, "Channel:%2d Id:%2d State: Failed",
+ channel, tgt);
break;
case PDRV_RBLD:
- sprintf(str,
- "Channel:%2d Id:%2d State: Rebuild",
- channel, tgt);
+ seq_printf(m, "Channel:%2d Id:%2d State: Rebuild",
+ channel, tgt);
break;
case PDRV_HOTSPARE:
- sprintf(str,
- "Channel:%2d Id:%2d State: Hot spare",
- channel, tgt);
+ seq_printf(m, "Channel:%2d Id:%2d State: Hot spare",
+ channel, tgt);
break;
default:
- sprintf(str,
- "Channel:%2d Id:%2d State: Un-configured",
- channel, tgt);
+ seq_printf(m, "Channel:%2d Id:%2d State: Un-configured",
+ channel, tgt);
break;
-
}
/*
@@ -2710,11 +2445,8 @@ proc_pdrv(adapter_t *adapter, char *page, int channel)
* Check for overflow. We print less than 240
* characters for inquiry
*/
- if( (len + 240) >= PAGE_SIZE ) break;
-
- len += sprintf(page+len, "%s.\n", str);
-
- len += mega_print_inquiry(page+len, scsi_inq);
+ seq_puts(m, ".\n");
+ mega_print_inquiry(m, scsi_inq);
}
free_pci:
@@ -2723,150 +2455,68 @@ free_inquiry:
mega_free_inquiry(inquiry, dma_handle, pdev);
free_pdev:
free_local_pdev(pdev);
-
- return len;
-}
-
-
-/*
- * Display scsi inquiry
- */
-static int
-mega_print_inquiry(char *page, char *scsi_inq)
-{
- int len = 0;
- int i;
-
- len = sprintf(page, " Vendor: ");
- for( i = 8; i < 16; i++ ) {
- len += sprintf(page+len, "%c", scsi_inq[i]);
- }
-
- len += sprintf(page+len, " Model: ");
-
- for( i = 16; i < 32; i++ ) {
- len += sprintf(page+len, "%c", scsi_inq[i]);
- }
-
- len += sprintf(page+len, " Rev: ");
-
- for( i = 32; i < 36; i++ ) {
- len += sprintf(page+len, "%c", scsi_inq[i]);
- }
-
- len += sprintf(page+len, "\n");
-
- i = scsi_inq[0] & 0x1f;
-
- len += sprintf(page+len, " Type: %s ", scsi_device_type(i));
-
- len += sprintf(page+len,
- " ANSI SCSI revision: %02x", scsi_inq[2] & 0x07);
-
- if( (scsi_inq[2] & 0x07) == 1 && (scsi_inq[3] & 0x0f) == 1 )
- len += sprintf(page+len, " CCS\n");
- else
- len += sprintf(page+len, "\n");
-
- return len;
+ return 0;
}
-
/**
- * proc_rdrv_10()
- * @page - buffer to write the data in
- * @start - where the actual data has been written in page
- * @offset - same meaning as the read system call
- * @count - same meaning as the read system call
- * @eof - set if no more data needs to be returned
- * @data - pointer to our soft state
+ * proc_show_pdrv_ch0()
+ * @m - Synthetic file construction data
+ * @v - File iterator
*
- * Display real time information about the logical drives 0 through 9.
+ * Display information about the physical drives on physical channel 0.
*/
static int
-proc_rdrv_10(char *page, char **start, off_t offset, int count, int *eof,
- void *data)
+proc_show_pdrv_ch0(struct seq_file *m, void *v)
{
- adapter_t *adapter = (adapter_t *)data;
-
- *eof = 1;
-
- return (proc_rdrv(adapter, page, 0, 9));
+ return proc_show_pdrv(m, m->private, 0);
}
/**
- * proc_rdrv_20()
- * @page - buffer to write the data in
- * @start - where the actual data has been written in page
- * @offset - same meaning as the read system call
- * @count - same meaning as the read system call
- * @eof - set if no more data needs to be returned
- * @data - pointer to our soft state
+ * proc_show_pdrv_ch1()
+ * @m - Synthetic file construction data
+ * @v - File iterator
*
- * Display real time information about the logical drives 0 through 9.
+ * Display information about the physical drives on physical channel 1.
*/
static int
-proc_rdrv_20(char *page, char **start, off_t offset, int count, int *eof,
- void *data)
+proc_show_pdrv_ch1(struct seq_file *m, void *v)
{
- adapter_t *adapter = (adapter_t *)data;
-
- *eof = 1;
-
- return (proc_rdrv(adapter, page, 10, 19));
+ return proc_show_pdrv(m, m->private, 1);
}
/**
- * proc_rdrv_30()
- * @page - buffer to write the data in
- * @start - where the actual data has been written in page
- * @offset - same meaning as the read system call
- * @count - same meaning as the read system call
- * @eof - set if no more data needs to be returned
- * @data - pointer to our soft state
+ * proc_show_pdrv_ch2()
+ * @m - Synthetic file construction data
+ * @v - File iterator
*
- * Display real time information about the logical drives 0 through 9.
+ * Display information about the physical drives on physical channel 2.
*/
static int
-proc_rdrv_30(char *page, char **start, off_t offset, int count, int *eof,
- void *data)
+proc_show_pdrv_ch2(struct seq_file *m, void *v)
{
- adapter_t *adapter = (adapter_t *)data;
-
- *eof = 1;
-
- return (proc_rdrv(adapter, page, 20, 29));
+ return proc_show_pdrv(m, m->private, 2);
}
/**
- * proc_rdrv_40()
- * @page - buffer to write the data in
- * @start - where the actual data has been written in page
- * @offset - same meaning as the read system call
- * @count - same meaning as the read system call
- * @eof - set if no more data needs to be returned
- * @data - pointer to our soft state
+ * proc_show_pdrv_ch3()
+ * @m - Synthetic file construction data
+ * @v - File iterator
*
- * Display real time information about the logical drives 0 through 9.
+ * Display information about the physical drives on physical channel 3.
*/
static int
-proc_rdrv_40(char *page, char **start, off_t offset, int count, int *eof,
- void *data)
+proc_show_pdrv_ch3(struct seq_file *m, void *v)
{
- adapter_t *adapter = (adapter_t *)data;
-
- *eof = 1;
-
- return (proc_rdrv(adapter, page, 30, 39));
+ return proc_show_pdrv(m, m->private, 3);
}
/**
- * proc_rdrv()
- * @page - buffer to write the data in
+ * proc_show_rdrv()
+ * @m - Synthetic file construction data
* @adapter - pointer to our soft state
* @start - starting logical drive to display
* @end - ending logical drive to display
@@ -2875,7 +2525,7 @@ proc_rdrv_40(char *page, char **start, off_t offset, int count, int *eof,
* /proc/scsi/scsi interface
*/
static int
-proc_rdrv(adapter_t *adapter, char *page, int start, int end )
+proc_show_rdrv(struct seq_file *m, adapter_t *adapter, int start, int end )
{
dma_addr_t dma_handle;
logdrv_param *lparam;
@@ -2887,29 +2537,18 @@ proc_rdrv(adapter_t *adapter, char *page, int start, int end )
u8 *rdrv_state;
int num_ldrv;
u32 array_sz;
- int len = 0;
int i;
- if( make_local_pdev(adapter, &pdev) != 0 ) {
- return len;
- }
+ if( make_local_pdev(adapter, &pdev) != 0 )
+ return 0;
- if( (inquiry = mega_allocate_inquiry(&dma_handle, pdev)) == NULL ) {
- free_local_pdev(pdev);
- return len;
- }
+ if( (inquiry = mega_allocate_inquiry(&dma_handle, pdev)) == NULL )
+ goto free_pdev;
if( mega_adapinq(adapter, dma_handle) != 0 ) {
-
- len = sprintf(page, "Adapter inquiry failed.\n");
-
+ seq_puts(m, "Adapter inquiry failed.\n");
printk(KERN_WARNING "megaraid: inquiry failed.\n");
-
- mega_free_inquiry(inquiry, dma_handle, pdev);
-
- free_local_pdev(pdev);
-
- return len;
+ goto free_inquiry;
}
memset(&mc, 0, sizeof(megacmd_t));
@@ -2935,13 +2574,8 @@ proc_rdrv(adapter_t *adapter, char *page, int start, int end )
&disk_array_dma_handle);
if( disk_array == NULL ) {
- len = sprintf(page, "memory not available.\n");
-
- mega_free_inquiry(inquiry, dma_handle, pdev);
-
- free_local_pdev(pdev);
-
- return len;
+ seq_puts(m, "memory not available.\n");
+ goto free_inquiry;
}
mc.xferaddr = (u32)disk_array_dma_handle;
@@ -2951,17 +2585,8 @@ proc_rdrv(adapter_t *adapter, char *page, int start, int end )
mc.opcode = OP_DCMD_READ_CONFIG;
if( mega_internal_command(adapter, &mc, NULL) ) {
-
- len = sprintf(page, "40LD read config failed.\n");
-
- mega_free_inquiry(inquiry, dma_handle, pdev);
-
- pci_free_consistent(pdev, array_sz, disk_array,
- disk_array_dma_handle);
-
- free_local_pdev(pdev);
-
- return len;
+ seq_puts(m, "40LD read config failed.\n");
+ goto free_pci;
}
}
@@ -2969,24 +2594,10 @@ proc_rdrv(adapter_t *adapter, char *page, int start, int end )
mc.cmd = NEW_READ_CONFIG_8LD;
if( mega_internal_command(adapter, &mc, NULL) ) {
-
mc.cmd = READ_CONFIG_8LD;
-
- if( mega_internal_command(adapter, &mc,
- NULL) ){
-
- len = sprintf(page,
- "8LD read config failed.\n");
-
- mega_free_inquiry(inquiry, dma_handle, pdev);
-
- pci_free_consistent(pdev, array_sz,
- disk_array,
- disk_array_dma_handle);
-
- free_local_pdev(pdev);
-
- return len;
+ if( mega_internal_command(adapter, &mc, NULL) ) {
+ seq_puts(m, "8LD read config failed.\n");
+ goto free_pci;
}
}
}
@@ -3006,29 +2617,23 @@ proc_rdrv(adapter_t *adapter, char *page, int start, int end )
* Check for overflow. We print less than 240 characters for
* information about each logical drive.
*/
- if( (len + 240) >= PAGE_SIZE ) break;
-
- len += sprintf(page+len, "Logical drive:%2d:, ", i);
+ seq_printf(m, "Logical drive:%2d:, ", i);
switch( rdrv_state[i] & 0x0F ) {
case RDRV_OFFLINE:
- len += sprintf(page+len, "state: offline");
+ seq_puts(m, "state: offline");
break;
-
case RDRV_DEGRADED:
- len += sprintf(page+len, "state: degraded");
+ seq_puts(m, "state: degraded");
break;
-
case RDRV_OPTIMAL:
- len += sprintf(page+len, "state: optimal");
+ seq_puts(m, "state: optimal");
break;
-
case RDRV_DELETED:
- len += sprintf(page+len, "state: deleted");
+ seq_puts(m, "state: deleted");
break;
-
default:
- len += sprintf(page+len, "state: unknown");
+ seq_puts(m, "state: unknown");
break;
}
@@ -3036,84 +2641,204 @@ proc_rdrv(adapter_t *adapter, char *page, int start, int end )
* Check if check consistency or initialization is going on
* for this logical drive.
*/
- if( (rdrv_state[i] & 0xF0) == 0x20 ) {
- len += sprintf(page+len,
- ", check-consistency in progress");
- }
- else if( (rdrv_state[i] & 0xF0) == 0x10 ) {
- len += sprintf(page+len,
- ", initialization in progress");
- }
+ if( (rdrv_state[i] & 0xF0) == 0x20 )
+ seq_puts(m, ", check-consistency in progress");
+ else if( (rdrv_state[i] & 0xF0) == 0x10 )
+ seq_puts(m, ", initialization in progress");
- len += sprintf(page+len, "\n");
-
- len += sprintf(page+len, "Span depth:%3d, ",
- lparam->span_depth);
-
- len += sprintf(page+len, "RAID level:%3d, ",
- lparam->level);
-
- len += sprintf(page+len, "Stripe size:%3d, ",
- lparam->stripe_sz ? lparam->stripe_sz/2: 128);
-
- len += sprintf(page+len, "Row size:%3d\n",
- lparam->row_size);
+ seq_putc(m, '\n');
+ seq_printf(m, "Span depth:%3d, ", lparam->span_depth);
+ seq_printf(m, "RAID level:%3d, ", lparam->level);
+ seq_printf(m, "Stripe size:%3d, ",
+ lparam->stripe_sz ? lparam->stripe_sz/2: 128);
+ seq_printf(m, "Row size:%3d\n", lparam->row_size);
- len += sprintf(page+len, "Read Policy: ");
-
+ seq_puts(m, "Read Policy: ");
switch(lparam->read_ahead) {
-
case NO_READ_AHEAD:
- len += sprintf(page+len, "No read ahead, ");
+ seq_puts(m, "No read ahead, ");
break;
-
case READ_AHEAD:
- len += sprintf(page+len, "Read ahead, ");
+ seq_puts(m, "Read ahead, ");
break;
-
case ADAP_READ_AHEAD:
- len += sprintf(page+len, "Adaptive, ");
+ seq_puts(m, "Adaptive, ");
break;
}
- len += sprintf(page+len, "Write Policy: ");
-
+ seq_puts(m, "Write Policy: ");
switch(lparam->write_mode) {
-
case WRMODE_WRITE_THRU:
- len += sprintf(page+len, "Write thru, ");
+ seq_puts(m, "Write thru, ");
break;
-
case WRMODE_WRITE_BACK:
- len += sprintf(page+len, "Write back, ");
+ seq_puts(m, "Write back, ");
break;
}
- len += sprintf(page+len, "Cache Policy: ");
-
+ seq_puts(m, "Cache Policy: ");
switch(lparam->direct_io) {
-
case CACHED_IO:
- len += sprintf(page+len, "Cached IO\n\n");
+ seq_puts(m, "Cached IO\n\n");
break;
-
case DIRECT_IO:
- len += sprintf(page+len, "Direct IO\n\n");
+ seq_puts(m, "Direct IO\n\n");
break;
}
}
- mega_free_inquiry(inquiry, dma_handle, pdev);
-
+free_pci:
pci_free_consistent(pdev, array_sz, disk_array,
disk_array_dma_handle);
-
+free_inquiry:
+ mega_free_inquiry(inquiry, dma_handle, pdev);
+free_pdev:
free_local_pdev(pdev);
+ return 0;
+}
+
+/**
+ * proc_show_rdrv_10()
+ * @m - Synthetic file construction data
+ * @v - File iterator
+ *
+ * Display real time information about the logical drives 0 through 9.
+ */
+static int
+proc_show_rdrv_10(struct seq_file *m, void *v)
+{
+ return proc_show_rdrv(m, m->private, 0, 9);
+}
- return len;
+
+/**
+ * proc_show_rdrv_20()
+ * @m - Synthetic file construction data
+ * @v - File iterator
+ *
+ * Display real time information about the logical drives 0 through 9.
+ */
+static int
+proc_show_rdrv_20(struct seq_file *m, void *v)
+{
+ return proc_show_rdrv(m, m->private, 10, 19);
+}
+
+
+/**
+ * proc_show_rdrv_30()
+ * @m - Synthetic file construction data
+ * @v - File iterator
+ *
+ * Display real time information about the logical drives 0 through 9.
+ */
+static int
+proc_show_rdrv_30(struct seq_file *m, void *v)
+{
+ return proc_show_rdrv(m, m->private, 20, 29);
}
+
+
+/**
+ * proc_show_rdrv_40()
+ * @m - Synthetic file construction data
+ * @v - File iterator
+ *
+ * Display real time information about the logical drives 0 through 9.
+ */
+static int
+proc_show_rdrv_40(struct seq_file *m, void *v)
+{
+ return proc_show_rdrv(m, m->private, 30, 39);
+}
+
+
+/*
+ * seq_file wrappers for procfile show routines.
+ */
+static int mega_proc_open(struct inode *inode, struct file *file)
+{
+ struct proc_dir_entry *e = PDE(inode);
+ adapter_t *adapter = e->parent->data;
+ int (*show)(struct seq_file *, void *) = e->data;
+
+ return single_open(file, show, adapter);
+}
+
+static const struct file_operations mega_proc_fops = {
+ .open = mega_proc_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = seq_release,
+};
+
+/*
+ * Table of proc files we need to create.
+ */
+struct mega_proc_file {
+ const char *name;
+ unsigned short ptr_offset;
+ int (*show) (struct seq_file *m, void *v);
+};
+
+static const struct mega_proc_file mega_proc_files[] = {
+ { "config", offsetof(adapter_t, proc_read), proc_show_config },
+ { "stat", offsetof(adapter_t, proc_stat), proc_show_stat },
+ { "mailbox", offsetof(adapter_t, proc_mbox), proc_show_mbox },
+#if MEGA_HAVE_ENH_PROC
+ { "rebuild-rate", offsetof(adapter_t, proc_rr), proc_show_rebuild_rate },
+ { "battery-status", offsetof(adapter_t, proc_battery), proc_show_battery },
+ { "diskdrives-ch0", offsetof(adapter_t, proc_pdrvstat[0]), proc_show_pdrv_ch0 },
+ { "diskdrives-ch1", offsetof(adapter_t, proc_pdrvstat[1]), proc_show_pdrv_ch1 },
+ { "diskdrives-ch2", offsetof(adapter_t, proc_pdrvstat[2]), proc_show_pdrv_ch2 },
+ { "diskdrives-ch3", offsetof(adapter_t, proc_pdrvstat[3]), proc_show_pdrv_ch3 },
+ { "raiddrives-0-9", offsetof(adapter_t, proc_rdrvstat[0]), proc_show_rdrv_10 },
+ { "raiddrives-10-19", offsetof(adapter_t, proc_rdrvstat[1]), proc_show_rdrv_20 },
+ { "raiddrives-20-29", offsetof(adapter_t, proc_rdrvstat[2]), proc_show_rdrv_30 },
+ { "raiddrives-30-39", offsetof(adapter_t, proc_rdrvstat[3]), proc_show_rdrv_40 },
+#endif
+ { NULL }
+};
+
+/**
+ * mega_create_proc_entry()
+ * @index - index in soft state array
+ * @parent - parent node for this /proc entry
+ *
+ * Creates /proc entries for our controllers.
+ */
+static void
+mega_create_proc_entry(int index, struct proc_dir_entry *parent)
+{
+ const struct mega_proc_file *f;
+ adapter_t *adapter = hba_soft_state[index];
+ struct proc_dir_entry *dir, *de, **ppde;
+ u8 string[16];
+
+ sprintf(string, "hba%d", adapter->host->host_no);
+
+ dir = adapter->controller_proc_dir_entry = proc_mkdir(string, parent);
+ if(!dir) {
+ printk(KERN_WARNING "\nmegaraid: proc_mkdir failed\n");
+ return;
+ }
+ dir->data = adapter;
+
+ for (f = mega_proc_files; f->name; f++) {
+ de = proc_create_data(f->name, S_IRUSR, dir, &mega_proc_fops,
+ f->show);
+ if (!de) {
+ printk(KERN_WARNING "\nmegaraid: proc_create failed\n");
+ return;
+ }
+
+ ppde = (void *)adapter + f->ptr_offset;
+ *ppde = de;
+ }
+}
+
#else
static inline void mega_create_proc_entry(int index, struct proc_dir_entry *parent)
{
diff --git a/drivers/scsi/megaraid.h b/drivers/scsi/megaraid.h
index 4fb2adf..4d0ce4e 100644
--- a/drivers/scsi/megaraid.h
+++ b/drivers/scsi/megaraid.h
@@ -987,24 +987,7 @@ static int mega_init_scb (adapter_t *);
static int mega_is_bios_enabled (adapter_t *);
#ifdef CONFIG_PROC_FS
-static int mega_print_inquiry(char *, char *);
static void mega_create_proc_entry(int, struct proc_dir_entry *);
-static int proc_read_config(char *, char **, off_t, int, int *, void *);
-static int proc_read_stat(char *, char **, off_t, int, int *, void *);
-static int proc_read_mbox(char *, char **, off_t, int, int *, void *);
-static int proc_rebuild_rate(char *, char **, off_t, int, int *, void *);
-static int proc_battery(char *, char **, off_t, int, int *, void *);
-static int proc_pdrv_ch0(char *, char **, off_t, int, int *, void *);
-static int proc_pdrv_ch1(char *, char **, off_t, int, int *, void *);
-static int proc_pdrv_ch2(char *, char **, off_t, int, int *, void *);
-static int proc_pdrv_ch3(char *, char **, off_t, int, int *, void *);
-static int proc_pdrv(adapter_t *, char *, int);
-static int proc_rdrv_10(char *, char **, off_t, int, int *, void *);
-static int proc_rdrv_20(char *, char **, off_t, int, int *, void *);
-static int proc_rdrv_30(char *, char **, off_t, int, int *, void *);
-static int proc_rdrv_40(char *, char **, off_t, int, int *, void *);
-static int proc_rdrv(adapter_t *, char *, int, int);
-
static int mega_adapinq(adapter_t *, dma_addr_t);
static int mega_internal_dev_inquiry(adapter_t *, u8, u8, dma_addr_t);
#endif
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