[SCSI] lpfc 8.3.25: Enhancements to Debug infrastructure
Enhancements to Debug infrastructure
- debugfs additions for new hardware.
- Correct stack overflow in lpfc_debugfs_dumpHBASlim_data()
- Correct warning on uninitialized reg_val in lpfc_idiag_drbacc_write()
- Separated the iDiag command for capturing mailbox commands for generic
issue mailbox command entry point and for BSG multi-buffer handling.
- Added capturing dumping capabiliy of mailbox command and external buffer
for the completion of the mailbox command so that the outcome can be
examined.
- Changed all the iDiag command structure data array indexing introduced so
far with properly defined macros.
- Added SLI4 device PCI BAR memory mapped register read/browse, write-by-
value, set-bit, and clear-bit methods for both interface type 0 and
interface type 2.
- Corrected warnings on mbxstatus being uninitialized in error paths in
lpfc_bsg.c
Signed-off-by: Alex Iannicelli <alex.iannicelli@emulex.com>
Signed-off-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
diff --git a/drivers/scsi/lpfc/lpfc_debugfs.c b/drivers/scsi/lpfc/lpfc_debugfs.c
index 30b25c5..a0424dd 100644
--- a/drivers/scsi/lpfc/lpfc_debugfs.c
+++ b/drivers/scsi/lpfc/lpfc_debugfs.c
@@ -48,6 +48,7 @@
#include "lpfc_version.h"
#include "lpfc_compat.h"
#include "lpfc_debugfs.h"
+#include "lpfc_bsg.h"
#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
/*
@@ -135,7 +136,11 @@
int i, index, len, enable;
uint32_t ms;
struct lpfc_debugfs_trc *dtp;
- char buffer[LPFC_DEBUG_TRC_ENTRY_SIZE];
+ char *buffer;
+
+ buffer = kmalloc(LPFC_DEBUG_TRC_ENTRY_SIZE, GFP_KERNEL);
+ if (!buffer)
+ return 0;
enable = lpfc_debugfs_enable;
lpfc_debugfs_enable = 0;
@@ -167,6 +172,8 @@
}
lpfc_debugfs_enable = enable;
+ kfree(buffer);
+
return len;
}
@@ -195,8 +202,11 @@
int i, index, len, enable;
uint32_t ms;
struct lpfc_debugfs_trc *dtp;
- char buffer[LPFC_DEBUG_TRC_ENTRY_SIZE];
+ char *buffer;
+ buffer = kmalloc(LPFC_DEBUG_TRC_ENTRY_SIZE, GFP_KERNEL);
+ if (!buffer)
+ return 0;
enable = lpfc_debugfs_enable;
lpfc_debugfs_enable = 0;
@@ -228,6 +238,8 @@
}
lpfc_debugfs_enable = enable;
+ kfree(buffer);
+
return len;
}
@@ -378,7 +390,11 @@
int len = 0;
int i, off;
uint32_t *ptr;
- char buffer[1024];
+ char *buffer;
+
+ buffer = kmalloc(1024, GFP_KERNEL);
+ if (!buffer)
+ return 0;
off = 0;
spin_lock_irq(&phba->hbalock);
@@ -407,6 +423,8 @@
}
spin_unlock_irq(&phba->hbalock);
+ kfree(buffer);
+
return len;
}
@@ -1327,8 +1345,8 @@
return 0;
if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_RD) {
- where = idiag.cmd.data[0];
- count = idiag.cmd.data[1];
+ where = idiag.cmd.data[IDIAG_PCICFG_WHERE_INDX];
+ count = idiag.cmd.data[IDIAG_PCICFG_COUNT_INDX];
} else
return 0;
@@ -1373,6 +1391,11 @@
len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len,
"%08x ", u32val);
offset += sizeof(uint32_t);
+ if (offset >= LPFC_PCI_CFG_SIZE) {
+ len += snprintf(pbuffer+len,
+ LPFC_PCI_CFG_SIZE-len, "\n");
+ break;
+ }
index -= sizeof(uint32_t);
if (!index)
len += snprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len,
@@ -1385,8 +1408,11 @@
}
/* Set up the offset for next portion of pci cfg read */
- idiag.offset.last_rd += LPFC_PCI_CFG_RD_SIZE;
- if (idiag.offset.last_rd >= LPFC_PCI_CFG_SIZE)
+ if (index == 0) {
+ idiag.offset.last_rd += LPFC_PCI_CFG_RD_SIZE;
+ if (idiag.offset.last_rd >= LPFC_PCI_CFG_SIZE)
+ idiag.offset.last_rd = 0;
+ } else
idiag.offset.last_rd = 0;
return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len);
@@ -1439,8 +1465,8 @@
if (rc != LPFC_PCI_CFG_RD_CMD_ARG)
goto error_out;
/* Read command from PCI config space, set up command fields */
- where = idiag.cmd.data[0];
- count = idiag.cmd.data[1];
+ where = idiag.cmd.data[IDIAG_PCICFG_WHERE_INDX];
+ count = idiag.cmd.data[IDIAG_PCICFG_COUNT_INDX];
if (count == LPFC_PCI_CFG_BROWSE) {
if (where % sizeof(uint32_t))
goto error_out;
@@ -1475,9 +1501,9 @@
if (rc != LPFC_PCI_CFG_WR_CMD_ARG)
goto error_out;
/* Write command to PCI config space, read-modify-write */
- where = idiag.cmd.data[0];
- count = idiag.cmd.data[1];
- value = idiag.cmd.data[2];
+ where = idiag.cmd.data[IDIAG_PCICFG_WHERE_INDX];
+ count = idiag.cmd.data[IDIAG_PCICFG_COUNT_INDX];
+ value = idiag.cmd.data[IDIAG_PCICFG_VALUE_INDX];
/* Sanity checks */
if ((count != sizeof(uint8_t)) &&
(count != sizeof(uint16_t)) &&
@@ -1570,6 +1596,292 @@
}
/**
+ * lpfc_idiag_baracc_read - idiag debugfs pci bar access read
+ * @file: The file pointer to read from.
+ * @buf: The buffer to copy the data to.
+ * @nbytes: The number of bytes to read.
+ * @ppos: The position in the file to start reading from.
+ *
+ * Description:
+ * This routine reads data from the @phba pci bar memory mapped space
+ * according to the idiag command, and copies to user @buf.
+ *
+ * Returns:
+ * This function returns the amount of data that was read (this could be less
+ * than @nbytes if the end of the file was reached) or a negative error value.
+ **/
+static ssize_t
+lpfc_idiag_baracc_read(struct file *file, char __user *buf, size_t nbytes,
+ loff_t *ppos)
+{
+ struct lpfc_debug *debug = file->private_data;
+ struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
+ int offset_label, offset, offset_run, len = 0, index;
+ int bar_num, acc_range, bar_size;
+ char *pbuffer;
+ void __iomem *mem_mapped_bar;
+ uint32_t if_type;
+ struct pci_dev *pdev;
+ uint32_t u32val;
+
+ pdev = phba->pcidev;
+ if (!pdev)
+ return 0;
+
+ /* This is a user read operation */
+ debug->op = LPFC_IDIAG_OP_RD;
+
+ if (!debug->buffer)
+ debug->buffer = kmalloc(LPFC_PCI_BAR_RD_BUF_SIZE, GFP_KERNEL);
+ if (!debug->buffer)
+ return 0;
+ pbuffer = debug->buffer;
+
+ if (*ppos)
+ return 0;
+
+ if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_RD) {
+ bar_num = idiag.cmd.data[IDIAG_BARACC_BAR_NUM_INDX];
+ offset = idiag.cmd.data[IDIAG_BARACC_OFF_SET_INDX];
+ acc_range = idiag.cmd.data[IDIAG_BARACC_ACC_MOD_INDX];
+ bar_size = idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX];
+ } else
+ return 0;
+
+ if (acc_range == 0)
+ return 0;
+
+ if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
+ if (if_type == LPFC_SLI_INTF_IF_TYPE_0) {
+ if (bar_num == IDIAG_BARACC_BAR_0)
+ mem_mapped_bar = phba->sli4_hba.conf_regs_memmap_p;
+ else if (bar_num == IDIAG_BARACC_BAR_1)
+ mem_mapped_bar = phba->sli4_hba.ctrl_regs_memmap_p;
+ else if (bar_num == IDIAG_BARACC_BAR_2)
+ mem_mapped_bar = phba->sli4_hba.drbl_regs_memmap_p;
+ else
+ return 0;
+ } else if (if_type == LPFC_SLI_INTF_IF_TYPE_2) {
+ if (bar_num == IDIAG_BARACC_BAR_0)
+ mem_mapped_bar = phba->sli4_hba.conf_regs_memmap_p;
+ else
+ return 0;
+ } else
+ return 0;
+
+ /* Read single PCI bar space register */
+ if (acc_range == SINGLE_WORD) {
+ offset_run = offset;
+ u32val = readl(mem_mapped_bar + offset_run);
+ len += snprintf(pbuffer+len, LPFC_PCI_BAR_RD_BUF_SIZE-len,
+ "%05x: %08x\n", offset_run, u32val);
+ } else
+ goto baracc_browse;
+
+ return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len);
+
+baracc_browse:
+
+ /* Browse all PCI bar space registers */
+ offset_label = idiag.offset.last_rd;
+ offset_run = offset_label;
+
+ /* Read PCI bar memory mapped space */
+ len += snprintf(pbuffer+len, LPFC_PCI_BAR_RD_BUF_SIZE-len,
+ "%05x: ", offset_label);
+ index = LPFC_PCI_BAR_RD_SIZE;
+ while (index > 0) {
+ u32val = readl(mem_mapped_bar + offset_run);
+ len += snprintf(pbuffer+len, LPFC_PCI_BAR_RD_BUF_SIZE-len,
+ "%08x ", u32val);
+ offset_run += sizeof(uint32_t);
+ if (acc_range == LPFC_PCI_BAR_BROWSE) {
+ if (offset_run >= bar_size) {
+ len += snprintf(pbuffer+len,
+ LPFC_PCI_BAR_RD_BUF_SIZE-len, "\n");
+ break;
+ }
+ } else {
+ if (offset_run >= offset +
+ (acc_range * sizeof(uint32_t))) {
+ len += snprintf(pbuffer+len,
+ LPFC_PCI_BAR_RD_BUF_SIZE-len, "\n");
+ break;
+ }
+ }
+ index -= sizeof(uint32_t);
+ if (!index)
+ len += snprintf(pbuffer+len,
+ LPFC_PCI_BAR_RD_BUF_SIZE-len, "\n");
+ else if (!(index % (8 * sizeof(uint32_t)))) {
+ offset_label += (8 * sizeof(uint32_t));
+ len += snprintf(pbuffer+len,
+ LPFC_PCI_BAR_RD_BUF_SIZE-len,
+ "\n%05x: ", offset_label);
+ }
+ }
+
+ /* Set up the offset for next portion of pci bar read */
+ if (index == 0) {
+ idiag.offset.last_rd += LPFC_PCI_BAR_RD_SIZE;
+ if (acc_range == LPFC_PCI_BAR_BROWSE) {
+ if (idiag.offset.last_rd >= bar_size)
+ idiag.offset.last_rd = 0;
+ } else {
+ if (offset_run >= offset +
+ (acc_range * sizeof(uint32_t)))
+ idiag.offset.last_rd = offset;
+ }
+ } else {
+ if (acc_range == LPFC_PCI_BAR_BROWSE)
+ idiag.offset.last_rd = 0;
+ else
+ idiag.offset.last_rd = offset;
+ }
+
+ return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len);
+}
+
+/**
+ * lpfc_idiag_baracc_write - Syntax check and set up idiag bar access commands
+ * @file: The file pointer to read from.
+ * @buf: The buffer to copy the user data from.
+ * @nbytes: The number of bytes to get.
+ * @ppos: The position in the file to start reading from.
+ *
+ * This routine get the debugfs idiag command struct from user space and
+ * then perform the syntax check for PCI bar memory mapped space read or
+ * write command accordingly. In the case of PCI bar memory mapped space
+ * read command, it sets up the command in the idiag command struct for
+ * the debugfs read operation. In the case of PCI bar memorpy mapped space
+ * write operation, it executes the write operation into the PCI bar memory
+ * mapped space accordingly.
+ *
+ * It returns the @nbytges passing in from debugfs user space when successful.
+ * In case of error conditions, it returns proper error code back to the user
+ * space.
+ */
+static ssize_t
+lpfc_idiag_baracc_write(struct file *file, const char __user *buf,
+ size_t nbytes, loff_t *ppos)
+{
+ struct lpfc_debug *debug = file->private_data;
+ struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
+ uint32_t bar_num, bar_size, offset, value, acc_range;
+ struct pci_dev *pdev;
+ void __iomem *mem_mapped_bar;
+ uint32_t if_type;
+ uint32_t u32val;
+ int rc;
+
+ pdev = phba->pcidev;
+ if (!pdev)
+ return -EFAULT;
+
+ /* This is a user write operation */
+ debug->op = LPFC_IDIAG_OP_WR;
+
+ rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd);
+ if (rc < 0)
+ return rc;
+
+ if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
+ bar_num = idiag.cmd.data[IDIAG_BARACC_BAR_NUM_INDX];
+
+ if (if_type == LPFC_SLI_INTF_IF_TYPE_0) {
+ if ((bar_num != IDIAG_BARACC_BAR_0) &&
+ (bar_num != IDIAG_BARACC_BAR_1) &&
+ (bar_num != IDIAG_BARACC_BAR_2))
+ goto error_out;
+ } else if (if_type == LPFC_SLI_INTF_IF_TYPE_2) {
+ if (bar_num != IDIAG_BARACC_BAR_0)
+ goto error_out;
+ } else
+ goto error_out;
+
+ if (if_type == LPFC_SLI_INTF_IF_TYPE_0) {
+ if (bar_num == IDIAG_BARACC_BAR_0) {
+ idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX] =
+ LPFC_PCI_IF0_BAR0_SIZE;
+ mem_mapped_bar = phba->sli4_hba.conf_regs_memmap_p;
+ } else if (bar_num == IDIAG_BARACC_BAR_1) {
+ idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX] =
+ LPFC_PCI_IF0_BAR1_SIZE;
+ mem_mapped_bar = phba->sli4_hba.ctrl_regs_memmap_p;
+ } else if (bar_num == IDIAG_BARACC_BAR_2) {
+ idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX] =
+ LPFC_PCI_IF0_BAR2_SIZE;
+ mem_mapped_bar = phba->sli4_hba.drbl_regs_memmap_p;
+ } else
+ goto error_out;
+ } else if (if_type == LPFC_SLI_INTF_IF_TYPE_2) {
+ if (bar_num == IDIAG_BARACC_BAR_0) {
+ idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX] =
+ LPFC_PCI_IF2_BAR0_SIZE;
+ mem_mapped_bar = phba->sli4_hba.conf_regs_memmap_p;
+ } else
+ goto error_out;
+ } else
+ goto error_out;
+
+ offset = idiag.cmd.data[IDIAG_BARACC_OFF_SET_INDX];
+ if (offset % sizeof(uint32_t))
+ goto error_out;
+
+ bar_size = idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX];
+ if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_RD) {
+ /* Sanity check on PCI config read command line arguments */
+ if (rc != LPFC_PCI_BAR_RD_CMD_ARG)
+ goto error_out;
+ acc_range = idiag.cmd.data[IDIAG_BARACC_ACC_MOD_INDX];
+ if (acc_range == LPFC_PCI_BAR_BROWSE) {
+ if (offset > bar_size - sizeof(uint32_t))
+ goto error_out;
+ /* Starting offset to browse */
+ idiag.offset.last_rd = offset;
+ } else if (acc_range > SINGLE_WORD) {
+ if (offset + acc_range * sizeof(uint32_t) > bar_size)
+ goto error_out;
+ /* Starting offset to browse */
+ idiag.offset.last_rd = offset;
+ } else if (acc_range != SINGLE_WORD)
+ goto error_out;
+ } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_WR ||
+ idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_ST ||
+ idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_CL) {
+ /* Sanity check on PCI bar write command line arguments */
+ if (rc != LPFC_PCI_BAR_WR_CMD_ARG)
+ goto error_out;
+ /* Write command to PCI bar space, read-modify-write */
+ acc_range = SINGLE_WORD;
+ value = idiag.cmd.data[IDIAG_BARACC_REG_VAL_INDX];
+ if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_WR) {
+ writel(value, mem_mapped_bar + offset);
+ readl(mem_mapped_bar + offset);
+ }
+ if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_ST) {
+ u32val = readl(mem_mapped_bar + offset);
+ u32val |= value;
+ writel(u32val, mem_mapped_bar + offset);
+ readl(mem_mapped_bar + offset);
+ }
+ if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_CL) {
+ u32val = readl(mem_mapped_bar + offset);
+ u32val &= ~value;
+ writel(u32val, mem_mapped_bar + offset);
+ readl(mem_mapped_bar + offset);
+ }
+ } else
+ /* All other opecodes are illegal for now */
+ goto error_out;
+
+ return nbytes;
+error_out:
+ memset(&idiag, 0, sizeof(idiag));
+ return -EINVAL;
+}
+
+/**
* lpfc_idiag_queinfo_read - idiag debugfs read queue information
* @file: The file pointer to read from.
* @buf: The buffer to copy the data to.
@@ -1871,8 +2183,8 @@
return 0;
if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_RD) {
- index = idiag.cmd.data[2];
- count = idiag.cmd.data[3];
+ index = idiag.cmd.data[IDIAG_QUEACC_INDEX_INDX];
+ count = idiag.cmd.data[IDIAG_QUEACC_COUNT_INDX];
pque = (struct lpfc_queue *)idiag.ptr_private;
} else
return 0;
@@ -1944,12 +2256,12 @@
return rc;
/* Get and sanity check on command feilds */
- quetp = idiag.cmd.data[0];
- queid = idiag.cmd.data[1];
- index = idiag.cmd.data[2];
- count = idiag.cmd.data[3];
- offset = idiag.cmd.data[4];
- value = idiag.cmd.data[5];
+ quetp = idiag.cmd.data[IDIAG_QUEACC_QUETP_INDX];
+ queid = idiag.cmd.data[IDIAG_QUEACC_QUEID_INDX];
+ index = idiag.cmd.data[IDIAG_QUEACC_INDEX_INDX];
+ count = idiag.cmd.data[IDIAG_QUEACC_COUNT_INDX];
+ offset = idiag.cmd.data[IDIAG_QUEACC_OFFST_INDX];
+ value = idiag.cmd.data[IDIAG_QUEACC_VALUE_INDX];
/* Sanity check on command line arguments */
if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_WR ||
@@ -2218,7 +2530,7 @@
return 0;
if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_RD)
- drb_reg_id = idiag.cmd.data[0];
+ drb_reg_id = idiag.cmd.data[IDIAG_DRBACC_REGID_INDX];
else
return 0;
@@ -2257,7 +2569,7 @@
{
struct lpfc_debug *debug = file->private_data;
struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
- uint32_t drb_reg_id, value, reg_val;
+ uint32_t drb_reg_id, value, reg_val = 0;
void __iomem *drb_reg;
int rc;
@@ -2269,8 +2581,8 @@
return rc;
/* Sanity check on command line arguments */
- drb_reg_id = idiag.cmd.data[0];
- value = idiag.cmd.data[1];
+ drb_reg_id = idiag.cmd.data[IDIAG_DRBACC_REGID_INDX];
+ value = idiag.cmd.data[IDIAG_DRBACC_VALUE_INDX];
if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_WR ||
idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_ST ||
@@ -2330,6 +2642,679 @@
return -EINVAL;
}
+/**
+ * lpfc_idiag_ctlacc_read_reg - idiag debugfs read a control registers
+ * @phba: The pointer to hba structure.
+ * @pbuffer: The pointer to the buffer to copy the data to.
+ * @len: The lenght of bytes to copied.
+ * @drbregid: The id to doorbell registers.
+ *
+ * Description:
+ * This routine reads a control register and copies its content to the
+ * user buffer pointed to by @pbuffer.
+ *
+ * Returns:
+ * This function returns the amount of data that was copied into @pbuffer.
+ **/
+static int
+lpfc_idiag_ctlacc_read_reg(struct lpfc_hba *phba, char *pbuffer,
+ int len, uint32_t ctlregid)
+{
+
+ if (!pbuffer)
+ return 0;
+
+ switch (ctlregid) {
+ case LPFC_CTL_PORT_SEM:
+ len += snprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len,
+ "Port SemReg: 0x%08x\n",
+ readl(phba->sli4_hba.conf_regs_memmap_p +
+ LPFC_CTL_PORT_SEM_OFFSET));
+ break;
+ case LPFC_CTL_PORT_STA:
+ len += snprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len,
+ "Port StaReg: 0x%08x\n",
+ readl(phba->sli4_hba.conf_regs_memmap_p +
+ LPFC_CTL_PORT_STA_OFFSET));
+ break;
+ case LPFC_CTL_PORT_CTL:
+ len += snprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len,
+ "Port CtlReg: 0x%08x\n",
+ readl(phba->sli4_hba.conf_regs_memmap_p +
+ LPFC_CTL_PORT_CTL_OFFSET));
+ break;
+ case LPFC_CTL_PORT_ER1:
+ len += snprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len,
+ "Port Er1Reg: 0x%08x\n",
+ readl(phba->sli4_hba.conf_regs_memmap_p +
+ LPFC_CTL_PORT_ER1_OFFSET));
+ break;
+ case LPFC_CTL_PORT_ER2:
+ len += snprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len,
+ "Port Er2Reg: 0x%08x\n",
+ readl(phba->sli4_hba.conf_regs_memmap_p +
+ LPFC_CTL_PORT_ER2_OFFSET));
+ break;
+ case LPFC_CTL_PDEV_CTL:
+ len += snprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len,
+ "PDev CtlReg: 0x%08x\n",
+ readl(phba->sli4_hba.conf_regs_memmap_p +
+ LPFC_CTL_PDEV_CTL_OFFSET));
+ break;
+ default:
+ break;
+ }
+ return len;
+}
+
+/**
+ * lpfc_idiag_ctlacc_read - idiag debugfs read port and device control register
+ * @file: The file pointer to read from.
+ * @buf: The buffer to copy the data to.
+ * @nbytes: The number of bytes to read.
+ * @ppos: The position in the file to start reading from.
+ *
+ * Description:
+ * This routine reads data from the @phba port and device registers according
+ * to the idiag command, and copies to user @buf.
+ *
+ * Returns:
+ * This function returns the amount of data that was read (this could be less
+ * than @nbytes if the end of the file was reached) or a negative error value.
+ **/
+static ssize_t
+lpfc_idiag_ctlacc_read(struct file *file, char __user *buf, size_t nbytes,
+ loff_t *ppos)
+{
+ struct lpfc_debug *debug = file->private_data;
+ struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
+ uint32_t ctl_reg_id, i;
+ char *pbuffer;
+ int len = 0;
+
+ /* This is a user read operation */
+ debug->op = LPFC_IDIAG_OP_RD;
+
+ if (!debug->buffer)
+ debug->buffer = kmalloc(LPFC_CTL_ACC_BUF_SIZE, GFP_KERNEL);
+ if (!debug->buffer)
+ return 0;
+ pbuffer = debug->buffer;
+
+ if (*ppos)
+ return 0;
+
+ if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_RD)
+ ctl_reg_id = idiag.cmd.data[IDIAG_CTLACC_REGID_INDX];
+ else
+ return 0;
+
+ if (ctl_reg_id == LPFC_CTL_ACC_ALL)
+ for (i = 1; i <= LPFC_CTL_MAX; i++)
+ len = lpfc_idiag_ctlacc_read_reg(phba,
+ pbuffer, len, i);
+ else
+ len = lpfc_idiag_ctlacc_read_reg(phba,
+ pbuffer, len, ctl_reg_id);
+
+ return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len);
+}
+
+/**
+ * lpfc_idiag_ctlacc_write - Syntax check and set up idiag ctlacc commands
+ * @file: The file pointer to read from.
+ * @buf: The buffer to copy the user data from.
+ * @nbytes: The number of bytes to get.
+ * @ppos: The position in the file to start reading from.
+ *
+ * This routine get the debugfs idiag command struct from user space and then
+ * perform the syntax check for port and device control register read (dump)
+ * or write (set) command accordingly.
+ *
+ * It returns the @nbytges passing in from debugfs user space when successful.
+ * In case of error conditions, it returns proper error code back to the user
+ * space.
+ **/
+static ssize_t
+lpfc_idiag_ctlacc_write(struct file *file, const char __user *buf,
+ size_t nbytes, loff_t *ppos)
+{
+ struct lpfc_debug *debug = file->private_data;
+ struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
+ uint32_t ctl_reg_id, value, reg_val = 0;
+ void __iomem *ctl_reg;
+ int rc;
+
+ /* This is a user write operation */
+ debug->op = LPFC_IDIAG_OP_WR;
+
+ rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd);
+ if (rc < 0)
+ return rc;
+
+ /* Sanity check on command line arguments */
+ ctl_reg_id = idiag.cmd.data[IDIAG_CTLACC_REGID_INDX];
+ value = idiag.cmd.data[IDIAG_CTLACC_VALUE_INDX];
+
+ if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_WR ||
+ idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_ST ||
+ idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_CL) {
+ if (rc != LPFC_CTL_ACC_WR_CMD_ARG)
+ goto error_out;
+ if (ctl_reg_id > LPFC_CTL_MAX)
+ goto error_out;
+ } else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_RD) {
+ if (rc != LPFC_CTL_ACC_RD_CMD_ARG)
+ goto error_out;
+ if ((ctl_reg_id > LPFC_CTL_MAX) &&
+ (ctl_reg_id != LPFC_CTL_ACC_ALL))
+ goto error_out;
+ } else
+ goto error_out;
+
+ /* Perform the write access operation */
+ if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_WR ||
+ idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_ST ||
+ idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_CL) {
+ switch (ctl_reg_id) {
+ case LPFC_CTL_PORT_SEM:
+ ctl_reg = phba->sli4_hba.conf_regs_memmap_p +
+ LPFC_CTL_PORT_SEM_OFFSET;
+ break;
+ case LPFC_CTL_PORT_STA:
+ ctl_reg = phba->sli4_hba.conf_regs_memmap_p +
+ LPFC_CTL_PORT_STA_OFFSET;
+ break;
+ case LPFC_CTL_PORT_CTL:
+ ctl_reg = phba->sli4_hba.conf_regs_memmap_p +
+ LPFC_CTL_PORT_CTL_OFFSET;
+ break;
+ case LPFC_CTL_PORT_ER1:
+ ctl_reg = phba->sli4_hba.conf_regs_memmap_p +
+ LPFC_CTL_PORT_ER1_OFFSET;
+ break;
+ case LPFC_CTL_PORT_ER2:
+ ctl_reg = phba->sli4_hba.conf_regs_memmap_p +
+ LPFC_CTL_PORT_ER2_OFFSET;
+ break;
+ case LPFC_CTL_PDEV_CTL:
+ ctl_reg = phba->sli4_hba.conf_regs_memmap_p +
+ LPFC_CTL_PDEV_CTL_OFFSET;
+ break;
+ default:
+ goto error_out;
+ }
+
+ if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_WR)
+ reg_val = value;
+ if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_ST) {
+ reg_val = readl(ctl_reg);
+ reg_val |= value;
+ }
+ if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_CL) {
+ reg_val = readl(ctl_reg);
+ reg_val &= ~value;
+ }
+ writel(reg_val, ctl_reg);
+ readl(ctl_reg); /* flush */
+ }
+ return nbytes;
+
+error_out:
+ /* Clean out command structure on command error out */
+ memset(&idiag, 0, sizeof(idiag));
+ return -EINVAL;
+}
+
+/**
+ * lpfc_idiag_mbxacc_get_setup - idiag debugfs get mailbox access setup
+ * @phba: Pointer to HBA context object.
+ * @pbuffer: Pointer to data buffer.
+ *
+ * Description:
+ * This routine gets the driver mailbox access debugfs setup information.
+ *
+ * Returns:
+ * This function returns the amount of data that was read (this could be less
+ * than @nbytes if the end of the file was reached) or a negative error value.
+ **/
+static int
+lpfc_idiag_mbxacc_get_setup(struct lpfc_hba *phba, char *pbuffer)
+{
+ uint32_t mbx_dump_map, mbx_dump_cnt, mbx_word_cnt, mbx_mbox_cmd;
+ int len = 0;
+
+ mbx_mbox_cmd = idiag.cmd.data[IDIAG_MBXACC_MBCMD_INDX];
+ mbx_dump_map = idiag.cmd.data[IDIAG_MBXACC_DPMAP_INDX];
+ mbx_dump_cnt = idiag.cmd.data[IDIAG_MBXACC_DPCNT_INDX];
+ mbx_word_cnt = idiag.cmd.data[IDIAG_MBXACC_WDCNT_INDX];
+
+ len += snprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len,
+ "mbx_dump_map: 0x%08x\n", mbx_dump_map);
+ len += snprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len,
+ "mbx_dump_cnt: %04d\n", mbx_dump_cnt);
+ len += snprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len,
+ "mbx_word_cnt: %04d\n", mbx_word_cnt);
+ len += snprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len,
+ "mbx_mbox_cmd: 0x%02x\n", mbx_mbox_cmd);
+
+ return len;
+}
+
+/**
+ * lpfc_idiag_mbxacc_read - idiag debugfs read on mailbox access
+ * @file: The file pointer to read from.
+ * @buf: The buffer to copy the data to.
+ * @nbytes: The number of bytes to read.
+ * @ppos: The position in the file to start reading from.
+ *
+ * Description:
+ * This routine reads data from the @phba driver mailbox access debugfs setup
+ * information.
+ *
+ * Returns:
+ * This function returns the amount of data that was read (this could be less
+ * than @nbytes if the end of the file was reached) or a negative error value.
+ **/
+static ssize_t
+lpfc_idiag_mbxacc_read(struct file *file, char __user *buf, size_t nbytes,
+ loff_t *ppos)
+{
+ struct lpfc_debug *debug = file->private_data;
+ struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
+ char *pbuffer;
+ int len = 0;
+
+ /* This is a user read operation */
+ debug->op = LPFC_IDIAG_OP_RD;
+
+ if (!debug->buffer)
+ debug->buffer = kmalloc(LPFC_MBX_ACC_BUF_SIZE, GFP_KERNEL);
+ if (!debug->buffer)
+ return 0;
+ pbuffer = debug->buffer;
+
+ if (*ppos)
+ return 0;
+
+ if ((idiag.cmd.opcode != LPFC_IDIAG_CMD_MBXACC_DP) &&
+ (idiag.cmd.opcode != LPFC_IDIAG_BSG_MBXACC_DP))
+ return 0;
+
+ len = lpfc_idiag_mbxacc_get_setup(phba, pbuffer);
+
+ return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len);
+}
+
+/**
+ * lpfc_idiag_mbxacc_write - Syntax check and set up idiag mbxacc commands
+ * @file: The file pointer to read from.
+ * @buf: The buffer to copy the user data from.
+ * @nbytes: The number of bytes to get.
+ * @ppos: The position in the file to start reading from.
+ *
+ * This routine get the debugfs idiag command struct from user space and then
+ * perform the syntax check for driver mailbox command (dump) and sets up the
+ * necessary states in the idiag command struct accordingly.
+ *
+ * It returns the @nbytges passing in from debugfs user space when successful.
+ * In case of error conditions, it returns proper error code back to the user
+ * space.
+ **/
+static ssize_t
+lpfc_idiag_mbxacc_write(struct file *file, const char __user *buf,
+ size_t nbytes, loff_t *ppos)
+{
+ struct lpfc_debug *debug = file->private_data;
+ uint32_t mbx_dump_map, mbx_dump_cnt, mbx_word_cnt, mbx_mbox_cmd;
+ int rc;
+
+ /* This is a user write operation */
+ debug->op = LPFC_IDIAG_OP_WR;
+
+ rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd);
+ if (rc < 0)
+ return rc;
+
+ /* Sanity check on command line arguments */
+ mbx_mbox_cmd = idiag.cmd.data[IDIAG_MBXACC_MBCMD_INDX];
+ mbx_dump_map = idiag.cmd.data[IDIAG_MBXACC_DPMAP_INDX];
+ mbx_dump_cnt = idiag.cmd.data[IDIAG_MBXACC_DPCNT_INDX];
+ mbx_word_cnt = idiag.cmd.data[IDIAG_MBXACC_WDCNT_INDX];
+
+ if (idiag.cmd.opcode == LPFC_IDIAG_CMD_MBXACC_DP) {
+ if (!(mbx_dump_map & LPFC_MBX_DMP_MBX_ALL))
+ goto error_out;
+ if ((mbx_dump_map & ~LPFC_MBX_DMP_MBX_ALL) &&
+ (mbx_dump_map != LPFC_MBX_DMP_ALL))
+ goto error_out;
+ if (mbx_word_cnt > sizeof(MAILBOX_t))
+ goto error_out;
+ } else if (idiag.cmd.opcode == LPFC_IDIAG_BSG_MBXACC_DP) {
+ if (!(mbx_dump_map & LPFC_BSG_DMP_MBX_ALL))
+ goto error_out;
+ if ((mbx_dump_map & ~LPFC_BSG_DMP_MBX_ALL) &&
+ (mbx_dump_map != LPFC_MBX_DMP_ALL))
+ goto error_out;
+ if (mbx_word_cnt > (BSG_MBOX_SIZE)/4)
+ goto error_out;
+ if (mbx_mbox_cmd != 0x9b)
+ goto error_out;
+ } else
+ goto error_out;
+
+ if (mbx_word_cnt == 0)
+ goto error_out;
+ if (rc != LPFC_MBX_DMP_ARG)
+ goto error_out;
+ if (mbx_mbox_cmd & ~0xff)
+ goto error_out;
+
+ /* condition for stop mailbox dump */
+ if (mbx_dump_cnt == 0)
+ goto reset_out;
+
+ return nbytes;
+
+reset_out:
+ /* Clean out command structure on command error out */
+ memset(&idiag, 0, sizeof(idiag));
+ return nbytes;
+
+error_out:
+ /* Clean out command structure on command error out */
+ memset(&idiag, 0, sizeof(idiag));
+ return -EINVAL;
+}
+
+/**
+ * lpfc_idiag_extacc_avail_get - get the available extents information
+ * @phba: pointer to lpfc hba data structure.
+ * @pbuffer: pointer to internal buffer.
+ * @len: length into the internal buffer data has been copied.
+ *
+ * Description:
+ * This routine is to get the available extent information.
+ *
+ * Returns:
+ * overall lenth of the data read into the internal buffer.
+ **/
+static int
+lpfc_idiag_extacc_avail_get(struct lpfc_hba *phba, char *pbuffer, int len)
+{
+ uint16_t ext_cnt, ext_size;
+
+ len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
+ "\nAvailable Extents Information:\n");
+
+ len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
+ "\tPort Available VPI extents: ");
+ lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_VPI,
+ &ext_cnt, &ext_size);
+ len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
+ "Count %3d, Size %3d\n", ext_cnt, ext_size);
+
+ len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
+ "\tPort Available VFI extents: ");
+ lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_VFI,
+ &ext_cnt, &ext_size);
+ len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
+ "Count %3d, Size %3d\n", ext_cnt, ext_size);
+
+ len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
+ "\tPort Available RPI extents: ");
+ lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_RPI,
+ &ext_cnt, &ext_size);
+ len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
+ "Count %3d, Size %3d\n", ext_cnt, ext_size);
+
+ len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
+ "\tPort Available XRI extents: ");
+ lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_XRI,
+ &ext_cnt, &ext_size);
+ len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
+ "Count %3d, Size %3d\n", ext_cnt, ext_size);
+
+ return len;
+}
+
+/**
+ * lpfc_idiag_extacc_alloc_get - get the allocated extents information
+ * @phba: pointer to lpfc hba data structure.
+ * @pbuffer: pointer to internal buffer.
+ * @len: length into the internal buffer data has been copied.
+ *
+ * Description:
+ * This routine is to get the allocated extent information.
+ *
+ * Returns:
+ * overall lenth of the data read into the internal buffer.
+ **/
+static int
+lpfc_idiag_extacc_alloc_get(struct lpfc_hba *phba, char *pbuffer, int len)
+{
+ uint16_t ext_cnt, ext_size;
+ int rc;
+
+ len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
+ "\nAllocated Extents Information:\n");
+
+ len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
+ "\tHost Allocated VPI extents: ");
+ rc = lpfc_sli4_get_allocated_extnts(phba, LPFC_RSC_TYPE_FCOE_VPI,
+ &ext_cnt, &ext_size);
+ if (!rc)
+ len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
+ "Port %d Extent %3d, Size %3d\n",
+ phba->brd_no, ext_cnt, ext_size);
+ else
+ len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
+ "N/A\n");
+
+ len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
+ "\tHost Allocated VFI extents: ");
+ rc = lpfc_sli4_get_allocated_extnts(phba, LPFC_RSC_TYPE_FCOE_VFI,
+ &ext_cnt, &ext_size);
+ if (!rc)
+ len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
+ "Port %d Extent %3d, Size %3d\n",
+ phba->brd_no, ext_cnt, ext_size);
+ else
+ len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
+ "N/A\n");
+
+ len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
+ "\tHost Allocated RPI extents: ");
+ rc = lpfc_sli4_get_allocated_extnts(phba, LPFC_RSC_TYPE_FCOE_RPI,
+ &ext_cnt, &ext_size);
+ if (!rc)
+ len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
+ "Port %d Extent %3d, Size %3d\n",
+ phba->brd_no, ext_cnt, ext_size);
+ else
+ len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
+ "N/A\n");
+
+ len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
+ "\tHost Allocated XRI extents: ");
+ rc = lpfc_sli4_get_allocated_extnts(phba, LPFC_RSC_TYPE_FCOE_XRI,
+ &ext_cnt, &ext_size);
+ if (!rc)
+ len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
+ "Port %d Extent %3d, Size %3d\n",
+ phba->brd_no, ext_cnt, ext_size);
+ else
+ len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
+ "N/A\n");
+
+ return len;
+}
+
+/**
+ * lpfc_idiag_extacc_drivr_get - get driver extent information
+ * @phba: pointer to lpfc hba data structure.
+ * @pbuffer: pointer to internal buffer.
+ * @len: length into the internal buffer data has been copied.
+ *
+ * Description:
+ * This routine is to get the driver extent information.
+ *
+ * Returns:
+ * overall lenth of the data read into the internal buffer.
+ **/
+static int
+lpfc_idiag_extacc_drivr_get(struct lpfc_hba *phba, char *pbuffer, int len)
+{
+ struct lpfc_rsrc_blks *rsrc_blks;
+ int index;
+
+ len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
+ "\nDriver Extents Information:\n");
+
+ len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
+ "\tVPI extents:\n");
+ index = 0;
+ list_for_each_entry(rsrc_blks, &phba->lpfc_vpi_blk_list, list) {
+ len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
+ "\t\tBlock %3d: Start %4d, Count %4d\n",
+ index, rsrc_blks->rsrc_start,
+ rsrc_blks->rsrc_size);
+ index++;
+ }
+ len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
+ "\tVFI extents:\n");
+ index = 0;
+ list_for_each_entry(rsrc_blks, &phba->sli4_hba.lpfc_vfi_blk_list,
+ list) {
+ len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
+ "\t\tBlock %3d: Start %4d, Count %4d\n",
+ index, rsrc_blks->rsrc_start,
+ rsrc_blks->rsrc_size);
+ index++;
+ }
+
+ len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
+ "\tRPI extents:\n");
+ index = 0;
+ list_for_each_entry(rsrc_blks, &phba->sli4_hba.lpfc_rpi_blk_list,
+ list) {
+ len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
+ "\t\tBlock %3d: Start %4d, Count %4d\n",
+ index, rsrc_blks->rsrc_start,
+ rsrc_blks->rsrc_size);
+ index++;
+ }
+
+ len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
+ "\tXRI extents:\n");
+ index = 0;
+ list_for_each_entry(rsrc_blks, &phba->sli4_hba.lpfc_xri_blk_list,
+ list) {
+ len += snprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
+ "\t\tBlock %3d: Start %4d, Count %4d\n",
+ index, rsrc_blks->rsrc_start,
+ rsrc_blks->rsrc_size);
+ index++;
+ }
+
+ return len;
+}
+
+/**
+ * lpfc_idiag_extacc_write - Syntax check and set up idiag extacc commands
+ * @file: The file pointer to read from.
+ * @buf: The buffer to copy the user data from.
+ * @nbytes: The number of bytes to get.
+ * @ppos: The position in the file to start reading from.
+ *
+ * This routine get the debugfs idiag command struct from user space and then
+ * perform the syntax check for extent information access commands and sets
+ * up the necessary states in the idiag command struct accordingly.
+ *
+ * It returns the @nbytges passing in from debugfs user space when successful.
+ * In case of error conditions, it returns proper error code back to the user
+ * space.
+ **/
+static ssize_t
+lpfc_idiag_extacc_write(struct file *file, const char __user *buf,
+ size_t nbytes, loff_t *ppos)
+{
+ struct lpfc_debug *debug = file->private_data;
+ uint32_t ext_map;
+ int rc;
+
+ /* This is a user write operation */
+ debug->op = LPFC_IDIAG_OP_WR;
+
+ rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd);
+ if (rc < 0)
+ return rc;
+
+ ext_map = idiag.cmd.data[IDIAG_EXTACC_EXMAP_INDX];
+
+ if (idiag.cmd.opcode != LPFC_IDIAG_CMD_EXTACC_RD)
+ goto error_out;
+ if (rc != LPFC_EXT_ACC_CMD_ARG)
+ goto error_out;
+ if (!(ext_map & LPFC_EXT_ACC_ALL))
+ goto error_out;
+
+ return nbytes;
+error_out:
+ /* Clean out command structure on command error out */
+ memset(&idiag, 0, sizeof(idiag));
+ return -EINVAL;
+}
+
+/**
+ * lpfc_idiag_extacc_read - idiag debugfs read access to extent information
+ * @file: The file pointer to read from.
+ * @buf: The buffer to copy the data to.
+ * @nbytes: The number of bytes to read.
+ * @ppos: The position in the file to start reading from.
+ *
+ * Description:
+ * This routine reads data from the proper extent information according to
+ * the idiag command, and copies to user @buf.
+ *
+ * Returns:
+ * This function returns the amount of data that was read (this could be less
+ * than @nbytes if the end of the file was reached) or a negative error value.
+ **/
+static ssize_t
+lpfc_idiag_extacc_read(struct file *file, char __user *buf, size_t nbytes,
+ loff_t *ppos)
+{
+ struct lpfc_debug *debug = file->private_data;
+ struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
+ char *pbuffer;
+ uint32_t ext_map;
+ int len = 0;
+
+ /* This is a user read operation */
+ debug->op = LPFC_IDIAG_OP_RD;
+
+ if (!debug->buffer)
+ debug->buffer = kmalloc(LPFC_EXT_ACC_BUF_SIZE, GFP_KERNEL);
+ if (!debug->buffer)
+ return 0;
+ pbuffer = debug->buffer;
+ if (*ppos)
+ return 0;
+ if (idiag.cmd.opcode != LPFC_IDIAG_CMD_EXTACC_RD)
+ return 0;
+
+ ext_map = idiag.cmd.data[IDIAG_EXTACC_EXMAP_INDX];
+ if (ext_map & LPFC_EXT_ACC_AVAIL)
+ len = lpfc_idiag_extacc_avail_get(phba, pbuffer, len);
+ if (ext_map & LPFC_EXT_ACC_ALLOC)
+ len = lpfc_idiag_extacc_alloc_get(phba, pbuffer, len);
+ if (ext_map & LPFC_EXT_ACC_DRIVR)
+ len = lpfc_idiag_extacc_drivr_get(phba, pbuffer, len);
+
+ return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len);
+}
+
#undef lpfc_debugfs_op_disc_trc
static const struct file_operations lpfc_debugfs_op_disc_trc = {
.owner = THIS_MODULE,
@@ -2420,6 +3405,16 @@
.release = lpfc_idiag_cmd_release,
};
+#undef lpfc_idiag_op_barAcc
+static const struct file_operations lpfc_idiag_op_barAcc = {
+ .owner = THIS_MODULE,
+ .open = lpfc_idiag_open,
+ .llseek = lpfc_debugfs_lseek,
+ .read = lpfc_idiag_baracc_read,
+ .write = lpfc_idiag_baracc_write,
+ .release = lpfc_idiag_cmd_release,
+};
+
#undef lpfc_idiag_op_queInfo
static const struct file_operations lpfc_idiag_op_queInfo = {
.owner = THIS_MODULE,
@@ -2428,7 +3423,7 @@
.release = lpfc_idiag_release,
};
-#undef lpfc_idiag_op_queacc
+#undef lpfc_idiag_op_queAcc
static const struct file_operations lpfc_idiag_op_queAcc = {
.owner = THIS_MODULE,
.open = lpfc_idiag_open,
@@ -2438,7 +3433,7 @@
.release = lpfc_idiag_cmd_release,
};
-#undef lpfc_idiag_op_drbacc
+#undef lpfc_idiag_op_drbAcc
static const struct file_operations lpfc_idiag_op_drbAcc = {
.owner = THIS_MODULE,
.open = lpfc_idiag_open,
@@ -2448,8 +3443,234 @@
.release = lpfc_idiag_cmd_release,
};
+#undef lpfc_idiag_op_ctlAcc
+static const struct file_operations lpfc_idiag_op_ctlAcc = {
+ .owner = THIS_MODULE,
+ .open = lpfc_idiag_open,
+ .llseek = lpfc_debugfs_lseek,
+ .read = lpfc_idiag_ctlacc_read,
+ .write = lpfc_idiag_ctlacc_write,
+ .release = lpfc_idiag_cmd_release,
+};
+
+#undef lpfc_idiag_op_mbxAcc
+static const struct file_operations lpfc_idiag_op_mbxAcc = {
+ .owner = THIS_MODULE,
+ .open = lpfc_idiag_open,
+ .llseek = lpfc_debugfs_lseek,
+ .read = lpfc_idiag_mbxacc_read,
+ .write = lpfc_idiag_mbxacc_write,
+ .release = lpfc_idiag_cmd_release,
+};
+
+#undef lpfc_idiag_op_extAcc
+static const struct file_operations lpfc_idiag_op_extAcc = {
+ .owner = THIS_MODULE,
+ .open = lpfc_idiag_open,
+ .llseek = lpfc_debugfs_lseek,
+ .read = lpfc_idiag_extacc_read,
+ .write = lpfc_idiag_extacc_write,
+ .release = lpfc_idiag_cmd_release,
+};
+
#endif
+/* lpfc_idiag_mbxacc_dump_bsg_mbox - idiag debugfs dump bsg mailbox command
+ * @phba: Pointer to HBA context object.
+ * @dmabuf: Pointer to a DMA buffer descriptor.
+ *
+ * Description:
+ * This routine dump a bsg pass-through non-embedded mailbox command with
+ * external buffer.
+ **/
+void
+lpfc_idiag_mbxacc_dump_bsg_mbox(struct lpfc_hba *phba, enum nemb_type nemb_tp,
+ enum mbox_type mbox_tp, enum dma_type dma_tp,
+ enum sta_type sta_tp,
+ struct lpfc_dmabuf *dmabuf, uint32_t ext_buf)
+{
+#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
+ uint32_t *mbx_mbox_cmd, *mbx_dump_map, *mbx_dump_cnt, *mbx_word_cnt;
+ char line_buf[LPFC_MBX_ACC_LBUF_SZ];
+ int len = 0;
+ uint32_t do_dump = 0;
+ uint32_t *pword;
+ uint32_t i;
+
+ if (idiag.cmd.opcode != LPFC_IDIAG_BSG_MBXACC_DP)
+ return;
+
+ mbx_mbox_cmd = &idiag.cmd.data[IDIAG_MBXACC_MBCMD_INDX];
+ mbx_dump_map = &idiag.cmd.data[IDIAG_MBXACC_DPMAP_INDX];
+ mbx_dump_cnt = &idiag.cmd.data[IDIAG_MBXACC_DPCNT_INDX];
+ mbx_word_cnt = &idiag.cmd.data[IDIAG_MBXACC_WDCNT_INDX];
+
+ if (!(*mbx_dump_map & LPFC_MBX_DMP_ALL) ||
+ (*mbx_dump_cnt == 0) ||
+ (*mbx_word_cnt == 0))
+ return;
+
+ if (*mbx_mbox_cmd != 0x9B)
+ return;
+
+ if ((mbox_tp == mbox_rd) && (dma_tp == dma_mbox)) {
+ if (*mbx_dump_map & LPFC_BSG_DMP_MBX_RD_MBX) {
+ do_dump |= LPFC_BSG_DMP_MBX_RD_MBX;
+ printk(KERN_ERR "\nRead mbox command (x%x), "
+ "nemb:0x%x, extbuf_cnt:%d:\n",
+ sta_tp, nemb_tp, ext_buf);
+ }
+ }
+ if ((mbox_tp == mbox_rd) && (dma_tp == dma_ebuf)) {
+ if (*mbx_dump_map & LPFC_BSG_DMP_MBX_RD_BUF) {
+ do_dump |= LPFC_BSG_DMP_MBX_RD_BUF;
+ printk(KERN_ERR "\nRead mbox buffer (x%x), "
+ "nemb:0x%x, extbuf_seq:%d:\n",
+ sta_tp, nemb_tp, ext_buf);
+ }
+ }
+ if ((mbox_tp == mbox_wr) && (dma_tp == dma_mbox)) {
+ if (*mbx_dump_map & LPFC_BSG_DMP_MBX_WR_MBX) {
+ do_dump |= LPFC_BSG_DMP_MBX_WR_MBX;
+ printk(KERN_ERR "\nWrite mbox command (x%x), "
+ "nemb:0x%x, extbuf_cnt:%d:\n",
+ sta_tp, nemb_tp, ext_buf);
+ }
+ }
+ if ((mbox_tp == mbox_wr) && (dma_tp == dma_ebuf)) {
+ if (*mbx_dump_map & LPFC_BSG_DMP_MBX_WR_BUF) {
+ do_dump |= LPFC_BSG_DMP_MBX_WR_BUF;
+ printk(KERN_ERR "\nWrite mbox buffer (x%x), "
+ "nemb:0x%x, extbuf_seq:%d:\n",
+ sta_tp, nemb_tp, ext_buf);
+ }
+ }
+
+ /* dump buffer content */
+ if (do_dump) {
+ pword = (uint32_t *)dmabuf->virt;
+ for (i = 0; i < *mbx_word_cnt; i++) {
+ if (!(i % 8)) {
+ if (i != 0)
+ printk(KERN_ERR "%s\n", line_buf);
+ len = 0;
+ len += snprintf(line_buf+len,
+ LPFC_MBX_ACC_LBUF_SZ-len,
+ "%03d: ", i);
+ }
+ len += snprintf(line_buf+len, LPFC_MBX_ACC_LBUF_SZ-len,
+ "%08x ", (uint32_t)*pword);
+ pword++;
+ }
+ if ((i - 1) % 8)
+ printk(KERN_ERR "%s\n", line_buf);
+ (*mbx_dump_cnt)--;
+ }
+
+ /* Clean out command structure on reaching dump count */
+ if (*mbx_dump_cnt == 0)
+ memset(&idiag, 0, sizeof(idiag));
+ return;
+#endif
+}
+
+/* lpfc_idiag_mbxacc_dump_issue_mbox - idiag debugfs dump issue mailbox command
+ * @phba: Pointer to HBA context object.
+ * @dmabuf: Pointer to a DMA buffer descriptor.
+ *
+ * Description:
+ * This routine dump a pass-through non-embedded mailbox command from issue
+ * mailbox command.
+ **/
+void
+lpfc_idiag_mbxacc_dump_issue_mbox(struct lpfc_hba *phba, MAILBOX_t *pmbox)
+{
+#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
+ uint32_t *mbx_dump_map, *mbx_dump_cnt, *mbx_word_cnt, *mbx_mbox_cmd;
+ char line_buf[LPFC_MBX_ACC_LBUF_SZ];
+ int len = 0;
+ uint32_t *pword;
+ uint8_t *pbyte;
+ uint32_t i, j;
+
+ if (idiag.cmd.opcode != LPFC_IDIAG_CMD_MBXACC_DP)
+ return;
+
+ mbx_mbox_cmd = &idiag.cmd.data[IDIAG_MBXACC_MBCMD_INDX];
+ mbx_dump_map = &idiag.cmd.data[IDIAG_MBXACC_DPMAP_INDX];
+ mbx_dump_cnt = &idiag.cmd.data[IDIAG_MBXACC_DPCNT_INDX];
+ mbx_word_cnt = &idiag.cmd.data[IDIAG_MBXACC_WDCNT_INDX];
+
+ if (!(*mbx_dump_map & LPFC_MBX_DMP_MBX_ALL) ||
+ (*mbx_dump_cnt == 0) ||
+ (*mbx_word_cnt == 0))
+ return;
+
+ if ((*mbx_mbox_cmd != LPFC_MBX_ALL_CMD) &&
+ (*mbx_mbox_cmd != pmbox->mbxCommand))
+ return;
+
+ /* dump buffer content */
+ if (*mbx_dump_map & LPFC_MBX_DMP_MBX_WORD) {
+ printk(KERN_ERR "Mailbox command:0x%x dump by word:\n",
+ pmbox->mbxCommand);
+ pword = (uint32_t *)pmbox;
+ for (i = 0; i < *mbx_word_cnt; i++) {
+ if (!(i % 8)) {
+ if (i != 0)
+ printk(KERN_ERR "%s\n", line_buf);
+ len = 0;
+ memset(line_buf, 0, LPFC_MBX_ACC_LBUF_SZ);
+ len += snprintf(line_buf+len,
+ LPFC_MBX_ACC_LBUF_SZ-len,
+ "%03d: ", i);
+ }
+ len += snprintf(line_buf+len, LPFC_MBX_ACC_LBUF_SZ-len,
+ "%08x ",
+ ((uint32_t)*pword) & 0xffffffff);
+ pword++;
+ }
+ if ((i - 1) % 8)
+ printk(KERN_ERR "%s\n", line_buf);
+ printk(KERN_ERR "\n");
+ }
+ if (*mbx_dump_map & LPFC_MBX_DMP_MBX_BYTE) {
+ printk(KERN_ERR "Mailbox command:0x%x dump by byte:\n",
+ pmbox->mbxCommand);
+ pbyte = (uint8_t *)pmbox;
+ for (i = 0; i < *mbx_word_cnt; i++) {
+ if (!(i % 8)) {
+ if (i != 0)
+ printk(KERN_ERR "%s\n", line_buf);
+ len = 0;
+ memset(line_buf, 0, LPFC_MBX_ACC_LBUF_SZ);
+ len += snprintf(line_buf+len,
+ LPFC_MBX_ACC_LBUF_SZ-len,
+ "%03d: ", i);
+ }
+ for (j = 0; j < 4; j++) {
+ len += snprintf(line_buf+len,
+ LPFC_MBX_ACC_LBUF_SZ-len,
+ "%02x",
+ ((uint8_t)*pbyte) & 0xff);
+ pbyte++;
+ }
+ len += snprintf(line_buf+len,
+ LPFC_MBX_ACC_LBUF_SZ-len, " ");
+ }
+ if ((i - 1) % 8)
+ printk(KERN_ERR "%s\n", line_buf);
+ printk(KERN_ERR "\n");
+ }
+ (*mbx_dump_cnt)--;
+
+ /* Clean out command structure on reaching dump count */
+ if (*mbx_dump_cnt == 0)
+ memset(&idiag, 0, sizeof(idiag));
+ return;
+#endif
+}
+
/**
* lpfc_debugfs_initialize - Initialize debugfs for a vport
* @vport: The vport pointer to initialize.
@@ -2673,7 +3894,7 @@
vport, &lpfc_debugfs_op_nodelist);
if (!vport->debug_nodelist) {
lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
- "0409 Can't create debugfs nodelist\n");
+ "2985 Can't create debugfs nodelist\n");
goto debug_failed;
}
@@ -2710,6 +3931,20 @@
idiag.offset.last_rd = 0;
}
+ /* iDiag PCI BAR access */
+ snprintf(name, sizeof(name), "barAcc");
+ if (!phba->idiag_bar_acc) {
+ phba->idiag_bar_acc =
+ debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
+ phba->idiag_root, phba, &lpfc_idiag_op_barAcc);
+ if (!phba->idiag_bar_acc) {
+ lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
+ "3056 Can't create idiag debugfs\n");
+ goto debug_failed;
+ }
+ idiag.offset.last_rd = 0;
+ }
+
/* iDiag get PCI function queue information */
snprintf(name, sizeof(name), "queInfo");
if (!phba->idiag_que_info) {
@@ -2749,6 +3984,50 @@
}
}
+ /* iDiag access PCI function control registers */
+ snprintf(name, sizeof(name), "ctlAcc");
+ if (!phba->idiag_ctl_acc) {
+ phba->idiag_ctl_acc =
+ debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
+ phba->idiag_root, phba, &lpfc_idiag_op_ctlAcc);
+ if (!phba->idiag_ctl_acc) {
+ lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
+ "2981 Can't create idiag debugfs\n");
+ goto debug_failed;
+ }
+ }
+
+ /* iDiag access mbox commands */
+ snprintf(name, sizeof(name), "mbxAcc");
+ if (!phba->idiag_mbx_acc) {
+ phba->idiag_mbx_acc =
+ debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
+ phba->idiag_root, phba, &lpfc_idiag_op_mbxAcc);
+ if (!phba->idiag_mbx_acc) {
+ lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
+ "2980 Can't create idiag debugfs\n");
+ goto debug_failed;
+ }
+ }
+
+ /* iDiag extents access commands */
+ if (phba->sli4_hba.extents_in_use) {
+ snprintf(name, sizeof(name), "extAcc");
+ if (!phba->idiag_ext_acc) {
+ phba->idiag_ext_acc =
+ debugfs_create_file(name,
+ S_IFREG|S_IRUGO|S_IWUSR,
+ phba->idiag_root, phba,
+ &lpfc_idiag_op_extAcc);
+ if (!phba->idiag_ext_acc) {
+ lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
+ "2986 Cant create "
+ "idiag debugfs\n");
+ goto debug_failed;
+ }
+ }
+ }
+
debug_failed:
return;
#endif
@@ -2783,7 +4062,6 @@
debugfs_remove(vport->debug_nodelist); /* nodelist */
vport->debug_nodelist = NULL;
}
-
if (vport->vport_debugfs_root) {
debugfs_remove(vport->vport_debugfs_root); /* vportX */
vport->vport_debugfs_root = NULL;
@@ -2827,6 +4105,21 @@
* iDiag release
*/
if (phba->sli_rev == LPFC_SLI_REV4) {
+ if (phba->idiag_ext_acc) {
+ /* iDiag extAcc */
+ debugfs_remove(phba->idiag_ext_acc);
+ phba->idiag_ext_acc = NULL;
+ }
+ if (phba->idiag_mbx_acc) {
+ /* iDiag mbxAcc */
+ debugfs_remove(phba->idiag_mbx_acc);
+ phba->idiag_mbx_acc = NULL;
+ }
+ if (phba->idiag_ctl_acc) {
+ /* iDiag ctlAcc */
+ debugfs_remove(phba->idiag_ctl_acc);
+ phba->idiag_ctl_acc = NULL;
+ }
if (phba->idiag_drb_acc) {
/* iDiag drbAcc */
debugfs_remove(phba->idiag_drb_acc);
@@ -2842,6 +4135,11 @@
debugfs_remove(phba->idiag_que_info);
phba->idiag_que_info = NULL;
}
+ if (phba->idiag_bar_acc) {
+ /* iDiag barAcc */
+ debugfs_remove(phba->idiag_bar_acc);
+ phba->idiag_bar_acc = NULL;
+ }
if (phba->idiag_pci_cfg) {
/* iDiag pciCfg */
debugfs_remove(phba->idiag_pci_cfg);