From 95099d4622f8cb224d94e314c7a8e0df60b13f87 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Sat, 09 Dec 2023 08:38:01 +0000
Subject: [PATCH] enable docker ppp
---
kernel/drivers/scsi/ipr.c | 158 +++++++++++++++++++++++++++++-----------------------
1 files changed, 87 insertions(+), 71 deletions(-)
diff --git a/kernel/drivers/scsi/ipr.c b/kernel/drivers/scsi/ipr.c
index 1b04a82..90e8a53 100644
--- a/kernel/drivers/scsi/ipr.c
+++ b/kernel/drivers/scsi/ipr.c
@@ -1,24 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* ipr.c -- driver for IBM Power Linux RAID adapters
*
* Written By: Brian King <brking@us.ibm.com>, IBM Corporation
*
* Copyright (C) 2003, 2004 IBM Corporation
- *
- * 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.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
*/
/*
@@ -684,6 +670,7 @@
/**
* ipr_init_ipr_cmnd - Initialize an IPR Cmnd block
* @ipr_cmd: ipr command struct
+ * @fast_done: fast done function call-back
*
* Return value:
* none
@@ -701,7 +688,7 @@
/**
* __ipr_get_free_ipr_cmnd - Get a free IPR Cmnd block
- * @ioa_cfg: ioa config struct
+ * @hrrq: hrr queue
*
* Return value:
* pointer to ipr command struct
@@ -751,7 +738,6 @@
static void ipr_mask_and_clear_interrupts(struct ipr_ioa_cfg *ioa_cfg,
u32 clr_ints)
{
- volatile u32 int_reg;
int i;
/* Stop new interrupts */
@@ -771,7 +757,7 @@
if (ioa_cfg->sis64)
writel(~0, ioa_cfg->regs.clr_interrupt_reg);
writel(clr_ints, ioa_cfg->regs.clr_interrupt_reg32);
- int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
+ readl(ioa_cfg->regs.sense_interrupt_reg);
}
/**
@@ -1178,7 +1164,7 @@
default:
res->ata_class = ATA_DEV_UNKNOWN;
break;
- };
+ }
}
/**
@@ -1301,7 +1287,7 @@
/**
* __ipr_format_res_path - Format the resource path for printing.
* @res_path: resource path
- * @buf: buffer
+ * @buffer: buffer
* @len: length of buffer provided
*
* Return value:
@@ -1313,9 +1299,9 @@
char *p = buffer;
*p = '\0';
- p += snprintf(p, buffer + len - p, "%02X", res_path[0]);
+ p += scnprintf(p, buffer + len - p, "%02X", res_path[0]);
for (i = 1; res_path[i] != 0xff && ((i * 3) < len); i++)
- p += snprintf(p, buffer + len - p, "-%02X", res_path[i]);
+ p += scnprintf(p, buffer + len - p, "-%02X", res_path[i]);
return buffer;
}
@@ -1324,7 +1310,7 @@
* ipr_format_res_path - Format the resource path for printing.
* @ioa_cfg: ioa config struct
* @res_path: resource path
- * @buf: buffer
+ * @buffer: buffer
* @len: length of buffer provided
*
* Return value:
@@ -1336,7 +1322,7 @@
char *p = buffer;
*p = '\0';
- p += snprintf(p, buffer + len - p, "%d/", ioa_cfg->host->host_no);
+ p += scnprintf(p, buffer + len - p, "%d/", ioa_cfg->host->host_no);
__ipr_format_res_path(res_path, p, len - (buffer - p));
return buffer;
}
@@ -1405,7 +1391,6 @@
* ipr_clear_res_target - Clear the bit in the bit map representing the target
* for the resource.
* @res: resource entry struct
- * @cfgtew: config table entry wrapper struct
*
* Return value:
* none
@@ -2681,7 +2666,7 @@
/**
* ipr_timeout - An internally generated op has timed out.
- * @ipr_cmd: ipr command struct
+ * @t: Timer context used to fetch ipr command struct
*
* This function blocks host requests and initiates an
* adapter reset.
@@ -2714,7 +2699,7 @@
/**
* ipr_oper_timeout - Adapter timed out transitioning to operational
- * @ipr_cmd: ipr command struct
+ * @t: Timer context used to fetch ipr command struct
*
* This function blocks host requests and initiates an
* adapter reset.
@@ -3498,6 +3483,7 @@
/**
* ipr_show_fw_version - Show the firmware version
* @dev: class device struct
+ * @attr: device attribute (unused)
* @buf: buffer
*
* Return value:
@@ -3532,6 +3518,7 @@
/**
* ipr_show_log_level - Show the adapter's error logging level
* @dev: class device struct
+ * @attr: device attribute (unused)
* @buf: buffer
*
* Return value:
@@ -3554,7 +3541,9 @@
/**
* ipr_store_log_level - Change the adapter's error logging level
* @dev: class device struct
+ * @attr: device attribute (unused)
* @buf: buffer
+ * @count: buffer size
*
* Return value:
* number of bytes printed to buffer
@@ -3585,6 +3574,7 @@
/**
* ipr_store_diagnostics - IOA Diagnostics interface
* @dev: device struct
+ * @attr: device attribute (unused)
* @buf: buffer
* @count: buffer size
*
@@ -3645,7 +3635,8 @@
/**
* ipr_show_adapter_state - Show the adapter's state
- * @class_dev: device struct
+ * @dev: device struct
+ * @attr: device attribute (unused)
* @buf: buffer
*
* Return value:
@@ -3671,6 +3662,7 @@
/**
* ipr_store_adapter_state - Change adapter state
* @dev: device struct
+ * @attr: device attribute (unused)
* @buf: buffer
* @count: buffer size
*
@@ -3722,6 +3714,7 @@
/**
* ipr_store_reset_adapter - Reset the adapter
* @dev: device struct
+ * @attr: device attribute (unused)
* @buf: buffer
* @count: buffer size
*
@@ -3763,6 +3756,7 @@
/**
* ipr_show_iopoll_weight - Show ipr polling mode
* @dev: class device struct
+ * @attr: device attribute (unused)
* @buf: buffer
*
* Return value:
@@ -3786,7 +3780,9 @@
/**
* ipr_store_iopoll_weight - Change the adapter's polling mode
* @dev: class device struct
+ * @attr: device attribute (unused)
* @buf: buffer
+ * @count: buffer size
*
* Return value:
* number of bytes printed to buffer
@@ -3885,7 +3881,7 @@
/**
* ipr_free_ucode_buffer - Frees a microcode download buffer
- * @p_dnld: scatter/gather list pointer
+ * @sglist: scatter/gather list pointer
*
* Free a DMA'able ucode download buffer previously allocated with
* ipr_alloc_ucode_buffer
@@ -3915,22 +3911,23 @@
u8 *buffer, u32 len)
{
int bsize_elem, i, result = 0;
- struct scatterlist *scatterlist;
+ struct scatterlist *sg;
void *kaddr;
/* Determine the actual number of bytes per element */
bsize_elem = PAGE_SIZE * (1 << sglist->order);
- scatterlist = sglist->scatterlist;
+ sg = sglist->scatterlist;
- for (i = 0; i < (len / bsize_elem); i++, buffer += bsize_elem) {
- struct page *page = sg_page(&scatterlist[i]);
+ for (i = 0; i < (len / bsize_elem); i++, sg = sg_next(sg),
+ buffer += bsize_elem) {
+ struct page *page = sg_page(sg);
kaddr = kmap(page);
memcpy(kaddr, buffer, bsize_elem);
kunmap(page);
- scatterlist[i].length = bsize_elem;
+ sg->length = bsize_elem;
if (result != 0) {
ipr_trace;
@@ -3939,13 +3936,13 @@
}
if (len % bsize_elem) {
- struct page *page = sg_page(&scatterlist[i]);
+ struct page *page = sg_page(sg);
kaddr = kmap(page);
memcpy(kaddr, buffer, len % bsize_elem);
kunmap(page);
- scatterlist[i].length = len % bsize_elem;
+ sg->length = len % bsize_elem;
}
sglist->buffer_len = len;
@@ -3966,6 +3963,7 @@
struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64;
struct scatterlist *scatterlist = sglist->scatterlist;
+ struct scatterlist *sg;
int i;
ipr_cmd->dma_use_sg = sglist->num_dma_sg;
@@ -3974,10 +3972,10 @@
ioarcb->ioadl_len =
cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg);
- for (i = 0; i < ipr_cmd->dma_use_sg; i++) {
+ for_each_sg(scatterlist, sg, ipr_cmd->dma_use_sg, i) {
ioadl64[i].flags = cpu_to_be32(IPR_IOADL_FLAGS_WRITE);
- ioadl64[i].data_len = cpu_to_be32(sg_dma_len(&scatterlist[i]));
- ioadl64[i].address = cpu_to_be64(sg_dma_address(&scatterlist[i]));
+ ioadl64[i].data_len = cpu_to_be32(sg_dma_len(sg));
+ ioadl64[i].address = cpu_to_be64(sg_dma_address(sg));
}
ioadl64[i-1].flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
@@ -3997,6 +3995,7 @@
struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
struct scatterlist *scatterlist = sglist->scatterlist;
+ struct scatterlist *sg;
int i;
ipr_cmd->dma_use_sg = sglist->num_dma_sg;
@@ -4006,11 +4005,11 @@
ioarcb->ioadl_len =
cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
- for (i = 0; i < ipr_cmd->dma_use_sg; i++) {
+ for_each_sg(scatterlist, sg, ipr_cmd->dma_use_sg, i) {
ioadl[i].flags_and_data_len =
- cpu_to_be32(IPR_IOADL_FLAGS_WRITE | sg_dma_len(&scatterlist[i]));
+ cpu_to_be32(IPR_IOADL_FLAGS_WRITE | sg_dma_len(sg));
ioadl[i].address =
- cpu_to_be32(sg_dma_address(&scatterlist[i]));
+ cpu_to_be32(sg_dma_address(sg));
}
ioadl[i-1].flags_and_data_len |=
@@ -4070,7 +4069,8 @@
/**
* ipr_store_update_fw - Update the firmware on the adapter
- * @class_dev: device struct
+ * @dev: device struct
+ * @attr: device attribute (unused)
* @buf: buffer
* @count: buffer size
*
@@ -4150,6 +4150,7 @@
/**
* ipr_show_fw_type - Show the adapter's firmware type.
* @dev: class device struct
+ * @attr: device attribute (unused)
* @buf: buffer
*
* Return value:
@@ -4491,7 +4492,6 @@
* ipr_change_queue_depth - Change the device's queue depth
* @sdev: scsi device struct
* @qdepth: depth to set
- * @reason: calling context
*
* Return value:
* actual depth set
@@ -4661,6 +4661,7 @@
/**
* ipr_show_raw_mode - Show the adapter's raw mode
* @dev: class device struct
+ * @attr: device attribute (unused)
* @buf: buffer
*
* Return value:
@@ -4688,7 +4689,9 @@
/**
* ipr_store_raw_mode - Change the adapter's raw mode
* @dev: class device struct
+ * @attr: device attribute (unused)
* @buf: buffer
+ * @count: buffer size
*
* Return value:
* number of bytes printed to buffer
@@ -5071,7 +5074,7 @@
/**
* ipr_cmnd_is_free - Check if a command is free or not
- * @ipr_cmd ipr command struct
+ * @ipr_cmd: ipr command struct
*
* Returns:
* true / false
@@ -5107,7 +5110,7 @@
/**
* ipr_wait_for_ops - Wait for matching commands to complete
- * @ipr_cmd: ipr command struct
+ * @ioa_cfg: ioa config struct
* @device: device to match (sdev)
* @match: match function to use
*
@@ -5272,6 +5275,7 @@
* ipr_sata_reset - Reset the SATA port
* @link: SATA link to reset
* @classes: class of the attached device
+ * @deadline: unused
*
* This function issues a SATA phy reset to the affected ATA link.
*
@@ -5451,7 +5455,7 @@
/**
* ipr_abort_timeout - An abort task has timed out
- * @ipr_cmd: ipr command struct
+ * @t: Timer context used to fetch ipr command struct
*
* This function handles when an abort task times out. If this
* happens we issue a bus reset since we have resources tied
@@ -5505,7 +5509,7 @@
struct ipr_ioa_cfg *ioa_cfg;
struct ipr_resource_entry *res;
struct ipr_cmd_pkt *cmd_pkt;
- u32 ioasc, int_reg;
+ u32 ioasc;
int i, op_found = 0;
struct ipr_hrr_queue *hrrq;
@@ -5528,7 +5532,7 @@
* by a still not detected EEH error. In such cases, reading a register will
* trigger the EEH recovery infrastructure.
*/
- int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
+ readl(ioa_cfg->regs.sense_interrupt_reg);
if (!ipr_is_gscsi(res))
return FAILED;
@@ -5580,7 +5584,8 @@
/**
* ipr_eh_abort - Abort a single op
- * @scsi_cmd: scsi command struct
+ * @shost: scsi host struct
+ * @elapsed_time: elapsed time
*
* Return value:
* 0 if scan in progress / 1 if scan is complete
@@ -5707,6 +5712,7 @@
* ipr_isr_eh - Interrupt service routine error handler
* @ioa_cfg: ioa config struct
* @msg: message to log
+ * @number: various meanings depending on the caller/message
*
* Return value:
* none
@@ -5773,7 +5779,6 @@
static int ipr_iopoll(struct irq_poll *iop, int budget)
{
- struct ipr_ioa_cfg *ioa_cfg;
struct ipr_hrr_queue *hrrq;
struct ipr_cmnd *ipr_cmd, *temp;
unsigned long hrrq_flags;
@@ -5781,7 +5786,6 @@
LIST_HEAD(doneq);
hrrq = container_of(iop, struct ipr_hrr_queue, iopoll);
- ioa_cfg = hrrq->ioa_cfg;
spin_lock_irqsave(hrrq->lock, hrrq_flags);
completed_ops = ipr_process_hrrq(hrrq, budget, &doneq);
@@ -6279,8 +6283,7 @@
/**
* ipr_gen_sense - Generate SCSI sense data from an IOASA
- * @ioasa: IOASA
- * @sense_buf: sense data buffer
+ * @ipr_cmd: ipr command struct
*
* Return value:
* none
@@ -6696,7 +6699,8 @@
* Return value:
* 0 on success / other on failure
**/
-static int ipr_ioctl(struct scsi_device *sdev, int cmd, void __user *arg)
+static int ipr_ioctl(struct scsi_device *sdev, unsigned int cmd,
+ void __user *arg)
{
struct ipr_resource_entry *res;
@@ -6712,7 +6716,7 @@
/**
* ipr_info - Get information about the card/driver
- * @scsi_host: scsi host struct
+ * @host: scsi host struct
*
* Return value:
* pointer to buffer with description string
@@ -6737,7 +6741,11 @@
.name = "IPR",
.info = ipr_ioa_info,
.ioctl = ipr_ioctl,
+#ifdef CONFIG_COMPAT
+ .compat_ioctl = ipr_ioctl,
+#endif
.queuecommand = ipr_queuecommand,
+ .dma_need_drain = ata_scsi_dma_need_drain,
.eh_abort_handler = ipr_eh_abort,
.eh_device_reset_handler = ipr_eh_dev_reset,
.eh_host_reset_handler = ipr_eh_host_reset,
@@ -6754,7 +6762,6 @@
.sg_tablesize = IPR_MAX_SGLIST,
.max_sectors = IPR_IOA_MAX_SECTORS,
.cmd_per_lun = IPR_MAX_CMD_PER_LUN,
- .use_clustering = ENABLE_CLUSTERING,
.shost_attrs = ipr_ioa_attrs,
.sdev_attrs = ipr_dev_attrs,
.proc_name = IPR_NAME,
@@ -7599,7 +7606,7 @@
/**
* ipr_build_mode_sense - Builds a mode sense command
* @ipr_cmd: ipr command struct
- * @res: resource entry struct
+ * @res_handle: resource entry struct
* @parm: Byte 2 of mode sense command
* @dma_addr: DMA address of mode sense buffer
* @xfer_len: Size of DMA buffer
@@ -7946,6 +7953,7 @@
/**
* ipr_ioafp_set_caching_parameters - Issue Set Cache parameters service
* action
+ * @ipr_cmd: ipr command struct
*
* Return value:
* none
@@ -7982,6 +7990,10 @@
/**
* ipr_ioafp_inquiry - Send an Inquiry to the adapter.
* @ipr_cmd: ipr command struct
+ * @flags: flags to send
+ * @page: page to inquire
+ * @dma_addr: DMA address
+ * @xfer_len: transfer data length
*
* This utility function sends an inquiry to the adapter.
*
@@ -8272,7 +8284,7 @@
/**
* ipr_reset_timer_done - Adapter reset timer function
- * @ipr_cmd: ipr command struct
+ * @t: Timer context used to fetch ipr command struct
*
* Description: This function is used in adapter reset processing
* for timing events. If the reset_cmd pointer in the IOA
@@ -8666,7 +8678,6 @@
static int ipr_reset_restore_cfg_space(struct ipr_cmnd *ipr_cmd)
{
struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
- u32 int_reg;
ENTER;
ioa_cfg->pdev->state_saved = true;
@@ -8682,7 +8693,7 @@
if (ioa_cfg->sis64) {
/* Set the adapter to the correct endian mode. */
writel(IPR_ENDIAN_SWAP_KEY, ioa_cfg->regs.endian_swap_reg);
- int_reg = readl(ioa_cfg->regs.endian_swap_reg);
+ readl(ioa_cfg->regs.endian_swap_reg);
}
if (ioa_cfg->ioa_unit_checked) {
@@ -9490,7 +9501,6 @@
* Description: This is the second phase of adapter initialization
* This function takes care of initilizing the adapter to the point
* where it can accept new commands.
-
* Return value:
* 0 on success / -EIO on failure
**/
@@ -9537,8 +9547,7 @@
}
}
- if (ioa_cfg->ipr_cmd_pool)
- dma_pool_destroy(ioa_cfg->ipr_cmd_pool);
+ dma_pool_destroy(ioa_cfg->ipr_cmd_pool);
kfree(ioa_cfg->ipr_cmnd_list);
kfree(ioa_cfg->ipr_cmnd_list_dma);
@@ -9605,7 +9614,7 @@
/**
* ipr_free_all_resources - Free all allocated resources for an adapter.
- * @ipr_cmd: ipr command struct
+ * @ioa_cfg: ioa config struct
*
* This function frees all allocated resources for the
* specified adapter.
@@ -9783,7 +9792,7 @@
GFP_KERNEL);
if (!ioa_cfg->hrrq[i].host_rrq) {
- while (--i > 0)
+ while (--i >= 0)
dma_free_coherent(&pdev->dev,
sizeof(u32) * ioa_cfg->hrrq[i].size,
ioa_cfg->hrrq[i].host_rrq,
@@ -10056,7 +10065,7 @@
ioa_cfg->vectors_info[i].desc,
&ioa_cfg->hrrq[i]);
if (rc) {
- while (--i >= 0)
+ while (--i > 0)
free_irq(pci_irq_vector(pdev, i),
&ioa_cfg->hrrq[i]);
return rc;
@@ -10067,7 +10076,8 @@
/**
* ipr_test_intr - Handle the interrupt generated in ipr_test_msi().
- * @pdev: PCI device struct
+ * @devp: PCI device struct
+ * @irq: IRQ number
*
* Description: Simply set the msi_received flag to 1 indicating that
* Message Signaled Interrupts are supported.
@@ -10093,6 +10103,7 @@
/**
* ipr_test_msi - Test for Message Signaled Interrupt (MSI) support.
+ * @ioa_cfg: ioa config struct
* @pdev: PCI device struct
*
* Description: This routine sets up and initiates a test interrupt to determine
@@ -10105,7 +10116,6 @@
static int ipr_test_msi(struct ipr_ioa_cfg *ioa_cfg, struct pci_dev *pdev)
{
int rc;
- volatile u32 int_reg;
unsigned long lock_flags = 0;
int irq = pci_irq_vector(pdev, 0);
@@ -10116,7 +10126,7 @@
ioa_cfg->msi_received = 0;
ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, ioa_cfg->regs.clr_interrupt_mask_reg32);
- int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
+ readl(ioa_cfg->regs.sense_interrupt_mask_reg);
spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
rc = request_irq(irq, ipr_test_intr, 0, IPR_NAME, ioa_cfg);
@@ -10127,7 +10137,7 @@
dev_info(&pdev->dev, "IRQ assigned: %d\n", irq);
writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, ioa_cfg->regs.sense_interrupt_reg32);
- int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
+ readl(ioa_cfg->regs.sense_interrupt_reg);
wait_event_timeout(ioa_cfg->msi_wait_q, ioa_cfg->msi_received, HZ);
spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
@@ -10538,6 +10548,8 @@
/**
* ipr_probe - Adapter hot plug add entry point
+ * @pdev: pci device struct
+ * @dev_id: pci device ID
*
* Return value:
* 0 on success / non-zero on failure
@@ -10794,6 +10806,7 @@
/**
* ipr_halt_done - Shutdown prepare completion
+ * @ipr_cmd: ipr command struct
*
* Return value:
* none
@@ -10805,6 +10818,9 @@
/**
* ipr_halt - Issue shutdown prepare to all adapters
+ * @nb: Notifier block
+ * @event: Notifier event
+ * @buf: Notifier data (unused)
*
* Return value:
* NOTIFY_OK on success / NOTIFY_DONE on failure
--
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