static int
_base_get_ioc_facts(struct MPT3SAS_ADAPTER *ioc);
+/**
+ * mpt3sas_base_check_cmd_timeout - Function
+ * to check timeout and command termination due
+ * to Host reset.
+ *
+ * @ioc: per adapter object.
+ * @status: Status of issued command.
+ * @mpi_request:mf request pointer.
+ * @sz: size of buffer.
+ *
+ * @Returns - 1/0 Reset to be done or Not
+ */
+u8
+mpt3sas_base_check_cmd_timeout(struct MPT3SAS_ADAPTER *ioc,
+ u8 status, void *mpi_request, int sz)
+{
+ u8 issue_reset = 0;
+
+ if (!(status & MPT3_CMD_RESET))
+ issue_reset = 1;
+
+ pr_err(MPT3SAS_FMT "Command %s\n", ioc->name,
+ ((issue_reset == 0) ? "terminated due to Host Reset" : "Timeout"));
+ _debug_dump_mf(mpi_request, sz);
+
+ return issue_reset;
+}
+
/**
* _scsih_set_fwfault_debug - global setting of ioc->fwfault_debug.
+ * @val: ?
+ * @kp: ?
*
+ * Return: ?
*/
static int
_scsih_set_fwfault_debug(const char *val, const struct kernel_param *kp)
* @ioc: per adapter object
* @reply: reply message frame(lower 32bit addr)
* @index: System request message index.
- *
- * @Returns - Nothing
*/
static void
_base_clone_reply_to_sys_mem(struct MPT3SAS_ADAPTER *ioc, u32 reply,
* _base_clone_mpi_to_sys_mem - Writes/copies MPI frames
* to system/BAR0 region.
*
- * @dst_iomem: Pointer to the destinaltion location in BAR0 space.
+ * @dst_iomem: Pointer to the destination location in BAR0 space.
* @src: Pointer to the Source data.
* @size: Size of data to be copied.
*/
* @smid: system request message index
* @sge_chain_count: Scatter gather chain count.
*
- * @Return: chain address.
+ * Return: the chain address.
*/
static inline void __iomem*
_base_get_chain(struct MPT3SAS_ADAPTER *ioc, u16 smid,
* @smid: system request message index
* @sge_chain_count: Scatter gather chain count.
*
- * @Return - Physical chain address.
+ * Return: Physical chain address.
*/
static inline phys_addr_t
_base_get_chain_phys(struct MPT3SAS_ADAPTER *ioc, u16 smid,
* @ioc: per adapter object
* @smid: system request message index
*
- * @Returns - Pointer to buffer location in BAR0.
+ * Return: Pointer to buffer location in BAR0.
*/
static void __iomem *
* @ioc: per adapter object
* @smid: system request message index
*
- * @Returns - Pointer to buffer location in BAR0.
+ * Return: Pointer to buffer location in BAR0.
*/
static phys_addr_t
_base_get_buffer_phys_bar0(struct MPT3SAS_ADAPTER *ioc, u16 smid)
* @ioc: per adapter object
* @chain_buffer_dma: Chain buffer dma address.
*
- * @Returns - Pointer to chain buffer. Or Null on Failure.
+ * Return: Pointer to chain buffer. Or Null on Failure.
*/
static void *
_base_get_chain_buffer_dma_to_chain_buffer(struct MPT3SAS_ADAPTER *ioc,
* @ioc: per adapter object.
* @mpi_request: mf request pointer.
* @smid: system request message index.
- *
- * @Returns: Nothing.
*/
static void _clone_sg_entries(struct MPT3SAS_ADAPTER *ioc,
void *mpi_request, u16 smid)
* mpt3sas_remove_dead_ioc_func - kthread context to remove dead ioc
* @arg: input argument, used to derive ioc
*
- * Return 0 if controller is removed from pci subsystem.
- * Return -1 for other case.
+ * Return:
+ * 0 if controller is removed from pci subsystem.
+ * -1 for other case.
*/
static int mpt3sas_remove_dead_ioc_func(void *arg)
{
/**
* _base_fault_reset_work - workq handling ioc fault conditions
* @work: input argument, used to derive ioc
- * Context: sleep.
*
- * Return nothing.
+ * Context: sleep.
*/
static void
_base_fault_reset_work(struct work_struct *work)
/**
* mpt3sas_base_start_watchdog - start the fault_reset_work_q
* @ioc: per adapter object
- * Context: sleep.
*
- * Return nothing.
+ * Context: sleep.
*/
void
mpt3sas_base_start_watchdog(struct MPT3SAS_ADAPTER *ioc)
if (!ioc->fault_reset_work_q) {
pr_err(MPT3SAS_FMT "%s: failed (line=%d)\n",
ioc->name, __func__, __LINE__);
- return;
+ return;
}
spin_lock_irqsave(&ioc->ioc_reset_in_progress_lock, flags);
if (ioc->fault_reset_work_q)
/**
* mpt3sas_base_stop_watchdog - stop the fault_reset_work_q
* @ioc: per adapter object
- * Context: sleep.
*
- * Return nothing.
+ * Context: sleep.
*/
void
mpt3sas_base_stop_watchdog(struct MPT3SAS_ADAPTER *ioc)
* mpt3sas_base_fault_info - verbose translation of firmware FAULT code
* @ioc: per adapter object
* @fault_code: fault code
- *
- * Return nothing.
*/
void
mpt3sas_base_fault_info(struct MPT3SAS_ADAPTER *ioc , u16 fault_code)
* @ioc: per adapter object
* @mpi_reply: reply mf payload returned from firmware
* @request_hdr: request mf
- *
- * Return nothing.
*/
static void
_base_sas_ioc_info(struct MPT3SAS_ADAPTER *ioc, MPI2DefaultReply_t *mpi_reply,
* _base_display_event_data - verbose translation of firmware asyn events
* @ioc: per adapter object
* @mpi_reply: reply mf payload returned from firmware
- *
- * Return nothing.
*/
static void
_base_display_event_data(struct MPT3SAS_ADAPTER *ioc,
* _base_sas_log_info - verbose translation of firmware log info
* @ioc: per adapter object
* @log_info: log info
- *
- * Return nothing.
*/
static void
_base_sas_log_info(struct MPT3SAS_ADAPTER *ioc , u32 log_info)
* @smid: system request message index
* @msix_index: MSIX table index supplied by the OS
* @reply: reply message frame(lower 32bit addr)
- *
- * Return nothing.
*/
static void
_base_display_reply_info(struct MPT3SAS_ADAPTER *ioc, u16 smid, u8 msix_index,
* @msix_index: MSIX table index supplied by the OS
* @reply: reply message frame(lower 32bit addr)
*
- * Return 1 meaning mf should be freed from _base_interrupt
- * 0 means the mf is freed from this function.
+ * Return:
+ * 1 meaning mf should be freed from _base_interrupt
+ * 0 means the mf is freed from this function.
*/
u8
mpt3sas_base_done(struct MPT3SAS_ADAPTER *ioc, u16 smid, u8 msix_index,
* @msix_index: MSIX table index supplied by the OS
* @reply: reply message frame(lower 32bit addr)
*
- * Return 1 meaning mf should be freed from _base_interrupt
- * 0 means the mf is freed from this function.
+ * Return:
+ * 1 meaning mf should be freed from _base_interrupt
+ * 0 means the mf is freed from this function.
*/
static u8
_base_async_event(struct MPT3SAS_ADAPTER *ioc, u8 msix_index, u32 reply)
* @ioc: per adapter object
* @smid: system request message index
*
- * Return callback index.
+ * Return: callback index.
*/
static u8
_base_get_cb_idx(struct MPT3SAS_ADAPTER *ioc, u16 smid)
* @ioc: per adapter object
*
* Disabling ResetIRQ, Reply and Doorbell Interrupts
- *
- * Return nothing.
*/
static void
_base_mask_interrupts(struct MPT3SAS_ADAPTER *ioc)
* @ioc: per adapter object
*
* Enabling only Reply Interrupts
- *
- * Return nothing.
*/
static void
_base_unmask_interrupts(struct MPT3SAS_ADAPTER *ioc)
* _base_interrupt - MPT adapter (IOC) specific interrupt handler.
* @irq: irq number (not used)
* @bus_id: bus identifier cookie == pointer to MPT_ADAPTER structure
- * @r: pt_regs pointer (not used)
*
- * Return IRQ_HANDLE if processed, else IRQ_NONE.
+ * Return: IRQ_HANDLED if processed, else IRQ_NONE.
*/
static irqreturn_t
_base_interrupt(int irq, void *bus_id)
* _base_is_controller_msix_enabled - is controller support muli-reply queues
* @ioc: per adapter object
*
+ * Return: Whether or not MSI/X is enabled.
*/
static inline int
_base_is_controller_msix_enabled(struct MPT3SAS_ADAPTER *ioc)
* Context: non ISR conext
*
* Called when a Task Management request has completed.
- *
- * Return nothing.
*/
void
mpt3sas_base_sync_reply_irqs(struct MPT3SAS_ADAPTER *ioc)
/**
* mpt3sas_base_release_callback_handler - clear interrupt callback handler
* @cb_idx: callback index
- *
- * Return nothing.
*/
void
mpt3sas_base_release_callback_handler(u8 cb_idx)
* mpt3sas_base_register_callback_handler - obtain index for the interrupt callback handler
* @cb_func: callback function
*
- * Returns cb_func.
+ * Return: Index of @cb_func.
*/
u8
mpt3sas_base_register_callback_handler(MPT_CALLBACK cb_func)
/**
* mpt3sas_base_initialize_callback_handler - initialize the interrupt callback handler
- *
- * Return nothing.
*/
void
mpt3sas_base_initialize_callback_handler(void)
* Create a zero length scatter gather entry to insure the IOCs hardware has
* something to use if the target device goes brain dead and tries
* to send data even when none is asked for.
- *
- * Return nothing.
*/
static void
_base_build_zero_len_sge(struct MPT3SAS_ADAPTER *ioc, void *paddr)
* @paddr: virtual address for SGE
* @flags_length: SGE flags and data transfer length
* @dma_addr: Physical address
- *
- * Return nothing.
*/
static void
_base_add_sg_single_32(void *paddr, u32 flags_length, dma_addr_t dma_addr)
* @paddr: virtual address for SGE
* @flags_length: SGE flags and data transfer length
* @dma_addr: Physical address
- *
- * Return nothing.
*/
static void
_base_add_sg_single_64(void *paddr, u32 flags_length, dma_addr_t dma_addr)
* @ioc: per adapter object
* @scmd: SCSI commands of the IO request
*
- * Returns chain tracker from chain_lookup table using key as
+ * Return: chain tracker from chain_lookup table using key as
* smid and smid's chain_offset.
*/
static struct chain_tracker *
* @data_out_sz: data xfer size for WRITES
* @data_in_dma: physical address for READS
* @data_in_sz: data xfer size for READS
- *
- * Return nothing.
*/
static void
_base_build_sg(struct MPT3SAS_ADAPTER *ioc, void *psge,
* describes the first data memory segment, and PRP2 contains a pointer to a PRP
* list located elsewhere in memory to describe the remaining data memory
* segments. The PRP list will be contiguous.
-
+ *
* The native SGL for NVMe devices is a Physical Region Page (PRP). A PRP
* consists of a list of PRP entries to describe a number of noncontigous
* physical memory segments as a single memory buffer, just as a SGL does. Note
* @data_out_sz: data xfer size for WRITES
* @data_in_dma: physical address for READS
* @data_in_sz: data xfer size for READS
- *
- * Returns nothing.
*/
static void
_base_build_nvme_prp(struct MPT3SAS_ADAPTER *ioc, u16 smid,
u32 offset, entry_len;
u32 page_mask_result, page_mask;
size_t length;
+ struct mpt3sas_nvme_cmd *nvme_cmd =
+ (void *)nvme_encap_request->NVMe_Command;
/*
* Not all commands require a data transfer. If no data, just return
*/
if (!data_in_sz && !data_out_sz)
return;
- /*
- * Set pointers to PRP1 and PRP2, which are in the NVMe command.
- * PRP1 is located at a 24 byte offset from the start of the NVMe
- * command. Then set the current PRP entry pointer to PRP1.
- */
- prp1_entry = (__le64 *)(nvme_encap_request->NVMe_Command +
- NVME_CMD_PRP1_OFFSET);
- prp2_entry = (__le64 *)(nvme_encap_request->NVMe_Command +
- NVME_CMD_PRP2_OFFSET);
+ prp1_entry = &nvme_cmd->prp1;
+ prp2_entry = &nvme_cmd->prp2;
prp_entry = prp1_entry;
/*
* For the PRP entries, use the specially allocated buffer of
* @smid: msg Index
* @sge_count: scatter gather element count.
*
- * Returns: true: PRPs are built
+ * Return: true: PRPs are built
* false: IEEE SGLs needs to be built
*/
static void
struct _pcie_device *pcie_device, struct scsi_cmnd *scmd, int sge_count)
{
u32 data_length = 0;
- struct scatterlist *sg_scmd;
bool build_prp = true;
data_length = scsi_bufflen(scmd);
- sg_scmd = scsi_sglist(scmd);
/* If Datalenth is <= 16K and number of SGE’s entries are <= 2
* we built IEEE SGL
* @scmd: scsi command
* @pcie_device: points to the PCIe device's info
*
- * Returns 0 if native SGL was built, 1 if no SGL was built
+ * Return: 0 if native SGL was built, 1 if no SGL was built
*/
static int
_base_check_pcie_native_sgl(struct MPT3SAS_ADAPTER *ioc,
Mpi25SCSIIORequest_t *mpi_request, u16 smid, struct scsi_cmnd *scmd,
struct _pcie_device *pcie_device)
{
- struct scatterlist *sg_scmd;
int sges_left;
/* Get the SG list pointer and info. */
- sg_scmd = scsi_sglist(scmd);
sges_left = scsi_dma_map(scmd);
if (sges_left < 0) {
sdev_printk(KERN_ERR, scmd->device,
* @chain_offset: number of 128 byte elements from start of segment
* @length: data transfer length
* @dma_addr: Physical address
- *
- * Return nothing.
*/
static void
_base_add_sg_single_ieee(void *paddr, u8 flags, u8 chain_offset, u32 length,
* Create a zero length scatter gather entry to insure the IOCs hardware has
* something to use if the target device goes brain dead and tries
* to send data even when none is asked for.
- *
- * Return nothing.
*/
static void
_base_build_zero_len_sge_ieee(struct MPT3SAS_ADAPTER *ioc, void *paddr)
* The main routine that builds scatter gather table from a given
* scsi request sent via the .queuecommand main handler.
*
- * Returns 0 success, anything else error
+ * Return: 0 success, anything else error
*/
static int
_base_build_sg_scmd(struct MPT3SAS_ADAPTER *ioc,
* The main routine that builds scatter gather table from a given
* scsi request sent via the .queuecommand main handler.
*
- * Returns 0 success, anything else error
+ * Return: 0 success, anything else error
*/
static int
_base_build_sg_scmd_ieee(struct MPT3SAS_ADAPTER *ioc,
* @data_out_sz: data xfer size for WRITES
* @data_in_dma: physical address for READS
* @data_in_sz: data xfer size for READS
- *
- * Return nothing.
*/
static void
_base_build_sg_ieee(struct MPT3SAS_ADAPTER *ioc, void *psge,
* @ioc: per adapter object
* @pdev: PCI device struct
*
- * Returns 0 for success, non-zero for failure.
+ * Return: 0 for success, non-zero for failure.
*/
static int
_base_config_dma_addressing(struct MPT3SAS_ADAPTER *ioc, struct pci_dev *pdev)
_base_free_irq(ioc);
_base_disable_msix(ioc);
- if (ioc->combined_reply_queue) {
- kfree(ioc->replyPostRegisterIndex);
- ioc->replyPostRegisterIndex = NULL;
- }
+ kfree(ioc->replyPostRegisterIndex);
+ ioc->replyPostRegisterIndex = NULL;
+
if (ioc->chip_phys) {
iounmap(ioc->chip);
* mpt3sas_base_map_resources - map in controller resources (io/irq/memap)
* @ioc: per adapter object
*
- * Returns 0 for success, non-zero for failure.
+ * Return: 0 for success, non-zero for failure.
*/
int
mpt3sas_base_map_resources(struct MPT3SAS_ADAPTER *ioc)
/* Use the Combined reply queue feature only for SAS3 C0 & higher
* revision HBAs and also only when reply queue count is greater than 8
*/
- if (ioc->combined_reply_queue && ioc->reply_queue_count > 8) {
+ if (ioc->combined_reply_queue) {
/* Determine the Supplemental Reply Post Host Index Registers
* Addresse. Supplemental Reply Post Host Index Registers
* starts at offset MPI25_SUP_REPLY_POST_HOST_INDEX_OFFSET and
MPI25_SUP_REPLY_POST_HOST_INDEX_OFFSET +
(i * MPT3_SUP_REPLY_POST_HOST_INDEX_REG_OFFSET));
}
- } else
- ioc->combined_reply_queue = 0;
+ }
if (ioc->is_warpdrive) {
ioc->reply_post_host_index[0] = (resource_size_t __iomem *)
* @ioc: per adapter object
* @smid: system request message index(smid zero is invalid)
*
- * Returns virt pointer to message frame.
+ * Return: virt pointer to message frame.
*/
void *
mpt3sas_base_get_msg_frame(struct MPT3SAS_ADAPTER *ioc, u16 smid)
* @ioc: per adapter object
* @smid: system request message index
*
- * Returns virt pointer to sense buffer.
+ * Return: virt pointer to sense buffer.
*/
void *
mpt3sas_base_get_sense_buffer(struct MPT3SAS_ADAPTER *ioc, u16 smid)
* @ioc: per adapter object
* @smid: system request message index
*
- * Returns phys pointer to the low 32bit address of the sense buffer.
+ * Return: phys pointer to the low 32bit address of the sense buffer.
*/
__le32
mpt3sas_base_get_sense_buffer_dma(struct MPT3SAS_ADAPTER *ioc, u16 smid)
* @ioc: per adapter object
* @smid: system request message index
*
- * Returns virt pointer to a PCIe SGL.
+ * Return: virt pointer to a PCIe SGL.
*/
void *
mpt3sas_base_get_pcie_sgl(struct MPT3SAS_ADAPTER *ioc, u16 smid)
* @ioc: per adapter object
* @smid: system request message index
*
- * Returns phys pointer to the address of the PCIe buffer.
+ * Return: phys pointer to the address of the PCIe buffer.
*/
dma_addr_t
mpt3sas_base_get_pcie_sgl_dma(struct MPT3SAS_ADAPTER *ioc, u16 smid)
* @ioc: per adapter object
* @cb_idx: callback index
*
- * Returns smid (zero is invalid)
+ * Return: smid (zero is invalid)
*/
u16
mpt3sas_base_get_smid(struct MPT3SAS_ADAPTER *ioc, u8 cb_idx)
* @cb_idx: callback index
* @scmd: pointer to scsi command object
*
- * Returns smid (zero is invalid)
+ * Return: smid (zero is invalid)
*/
u16
mpt3sas_base_get_smid_scsiio(struct MPT3SAS_ADAPTER *ioc, u8 cb_idx,
* @ioc: per adapter object
* @cb_idx: callback index
*
- * Returns smid (zero is invalid)
+ * Return: smid (zero is invalid)
*/
u16
mpt3sas_base_get_smid_hpr(struct MPT3SAS_ADAPTER *ioc, u8 cb_idx)
* See _wait_for_commands_to_complete() call with regards to this code.
*/
if (ioc->shost_recovery && ioc->pending_io_count) {
- ioc->pending_io_count = atomic_read(&ioc->shost->host_busy);
+ ioc->pending_io_count = scsi_host_busy(ioc->shost);
if (ioc->pending_io_count == 0)
wake_up(&ioc->reset_wq);
}
* mpt3sas_base_free_smid - put smid back on free_list
* @ioc: per adapter object
* @smid: system request message index
- *
- * Return nothing.
*/
void
mpt3sas_base_free_smid(struct MPT3SAS_ADAPTER *ioc, u16 smid)
spin_lock_irqsave(writeq_lock, flags);
writel((u32)(data_out), addr);
writel((u32)(data_out >> 32), (addr + 4));
+ mmiowb();
spin_unlock_irqrestore(writeq_lock, flags);
}
/**
* _base_writeq - 64 bit write to MMIO
- * @ioc: per adapter object
* @b: data payload
* @addr: address in MMIO space
* @writeq_lock: spin lock
* @ioc: per adapter object
* @smid: system request message index
* @handle: device handle
- *
- * Return nothing.
*/
static void
_base_put_smid_mpi_ep_scsi_io(struct MPT3SAS_ADAPTER *ioc, u16 smid, u16 handle)
* @ioc: per adapter object
* @smid: system request message index
* @handle: device handle
- *
- * Return nothing.
*/
static void
_base_put_smid_scsi_io(struct MPT3SAS_ADAPTER *ioc, u16 smid, u16 handle)
* @ioc: per adapter object
* @smid: system request message index
* @handle: device handle
- *
- * Return nothing.
*/
void
mpt3sas_base_put_smid_fast_path(struct MPT3SAS_ADAPTER *ioc, u16 smid,
* @ioc: per adapter object
* @smid: system request message index
* @msix_task: msix_task will be same as msix of IO incase of task abort else 0.
- * Return nothing.
*/
void
mpt3sas_base_put_smid_hi_priority(struct MPT3SAS_ADAPTER *ioc, u16 smid,
u64 *request;
if (ioc->is_mcpu_endpoint) {
- MPI2RequestHeader_t *request_hdr;
-
__le32 *mfp = (__le32 *)mpt3sas_base_get_msg_frame(ioc, smid);
- request_hdr = (MPI2RequestHeader_t *)mfp;
/* TBD 256 is offset within sys register. */
mpi_req_iomem = (void __force *)ioc->chip
+ MPI_FRAME_START_OFFSET
* firmware
* @ioc: per adapter object
* @smid: system request message index
- *
- * Return nothing.
*/
void
mpt3sas_base_put_smid_nvme_encap(struct MPT3SAS_ADAPTER *ioc, u16 smid)
* mpt3sas_base_put_smid_default - Default, primarily used for config pages
* @ioc: per adapter object
* @smid: system request message index
- *
- * Return nothing.
*/
void
mpt3sas_base_put_smid_default(struct MPT3SAS_ADAPTER *ioc, u16 smid)
Mpi2RequestDescriptorUnion_t descriptor;
void *mpi_req_iomem;
u64 *request;
- MPI2RequestHeader_t *request_hdr;
if (ioc->is_mcpu_endpoint) {
__le32 *mfp = (__le32 *)mpt3sas_base_get_msg_frame(ioc, smid);
- request_hdr = (MPI2RequestHeader_t *)mfp;
-
_clone_sg_entries(ioc, (void *) mfp, smid);
/* TBD 256 is offset within sys register */
mpi_req_iomem = (void __force *)ioc->chip +
/**
* _base_display_OEMs_branding - Display branding string
* @ioc: per adapter object
- *
- * Return nothing.
*/
static void
_base_display_OEMs_branding(struct MPT3SAS_ADAPTER *ioc)
* version from FW Image Header.
* @ioc: per adapter object
*
- * Returns 0 for success, non-zero for failure.
+ * Return: 0 for success, non-zero for failure.
*/
static int
_base_display_fwpkg_version(struct MPT3SAS_ADAPTER *ioc)
/**
* _base_display_ioc_capabilities - Disply IOC's capabilities.
* @ioc: per adapter object
- *
- * Return nothing.
*/
static void
_base_display_ioc_capabilities(struct MPT3SAS_ADAPTER *ioc)
* @device_missing_delay: amount of time till device is reported missing
* @io_missing_delay: interval IO is returned when there is a missing device
*
- * Return nothing.
- *
* Passed on the command line, this function will modify the device missing
* delay, as well as the io missing delay. This should be called at driver
* load time.
out:
kfree(sas_iounit_pg1);
}
+
/**
* _base_static_config_pages - static start of day config pages
* @ioc: per adapter object
- *
- * Return nothing.
*/
static void
_base_static_config_pages(struct MPT3SAS_ADAPTER *ioc)
* @ioc: per adapter object
*
* Free memory allocated during encloure add.
- *
- * Return nothing.
*/
void
mpt3sas_free_enclosure_list(struct MPT3SAS_ADAPTER *ioc)
* @ioc: per adapter object
*
* Free memory allocated from _base_allocate_memory_pools.
- *
- * Return nothing.
*/
static void
_base_release_memory_pools(struct MPT3SAS_ADAPTER *ioc)
* @reply_pool_start_address: Base address of a reply queue set
* @pool_sz: Size of single Reply Descriptor Post Queues pool size
*
- * Returns 1 if reply queues in a set have a same upper 32bits
- * in their base memory address,
- * else 0
+ * Return: 1 if reply queues in a set have a same upper 32bits in their base
+ * memory address, else 0.
*/
static int
* _base_allocate_memory_pools - allocate start of day memory pools
* @ioc: per adapter object
*
- * Returns 0 success, anything else error
+ * Return: 0 success, anything else error.
*/
static int
_base_allocate_memory_pools(struct MPT3SAS_ADAPTER *ioc)
* @ioc: Pointer to MPT_ADAPTER structure
* @cooked: Request raw or cooked IOC state
*
- * Returns all IOC Doorbell register bits if cooked==0, else just the
+ * Return: all IOC Doorbell register bits if cooked==0, else just the
* Doorbell bits in MPI_IOC_STATE_MASK.
*/
u32
/**
* _base_wait_on_iocstate - waiting on a particular ioc state
+ * @ioc: ?
* @ioc_state: controller state { READY, OPERATIONAL, or RESET }
* @timeout: timeout in second
*
- * Returns 0 for success, non-zero for failure.
+ * Return: 0 for success, non-zero for failure.
*/
static int
_base_wait_on_iocstate(struct MPT3SAS_ADAPTER *ioc, u32 ioc_state, int timeout)
* _base_wait_for_doorbell_int - waiting for controller interrupt(generated by
* a write to the doorbell)
* @ioc: per adapter object
- * @timeout: timeout in second
*
- * Returns 0 for success, non-zero for failure.
+ * Return: 0 for success, non-zero for failure.
*
* Notes: MPI2_HIS_IOC2SYS_DB_STATUS - set to one when IOC writes to doorbell.
*/
* @ioc: per adapter object
* @timeout: timeout in second
*
- * Returns 0 for success, non-zero for failure.
+ * Return: 0 for success, non-zero for failure.
*
* Notes: MPI2_HIS_SYS2IOC_DB_STATUS - set to one when host writes to
* doorbell.
* @ioc: per adapter object
* @timeout: timeout in second
*
- * Returns 0 for success, non-zero for failure.
- *
+ * Return: 0 for success, non-zero for failure.
*/
static int
_base_wait_for_doorbell_not_used(struct MPT3SAS_ADAPTER *ioc, int timeout)
* @reset_type: currently only supports: MPI2_FUNCTION_IOC_MESSAGE_UNIT_RESET
* @timeout: timeout in second
*
- * Returns 0 for success, non-zero for failure.
+ * Return: 0 for success, non-zero for failure.
*/
static int
_base_send_ioc_reset(struct MPT3SAS_ADAPTER *ioc, u8 reset_type, int timeout)
* @reply: pointer to reply payload
* @timeout: timeout in second
*
- * Returns 0 for success, non-zero for failure.
+ * Return: 0 for success, non-zero for failure.
*/
static int
_base_handshake_req_reply_wait(struct MPT3SAS_ADAPTER *ioc, int request_bytes,
* identifying information about the device, in addition allows the host to
* remove IOC resources associated with the device.
*
- * Returns 0 for success, non-zero for failure.
+ * Return: 0 for success, non-zero for failure.
*/
int
mpt3sas_base_sas_iounit_control(struct MPT3SAS_ADAPTER *ioc,
{
u16 smid;
u32 ioc_state;
- bool issue_reset = false;
+ u8 issue_reset = 0;
int rc;
void *request;
u16 wait_state_count;
ioc->ioc_link_reset_in_progress)
ioc->ioc_link_reset_in_progress = 0;
if (!(ioc->base_cmds.status & MPT3_CMD_COMPLETE)) {
- pr_err(MPT3SAS_FMT "%s: timeout\n",
- ioc->name, __func__);
- _debug_dump_mf(mpi_request,
- sizeof(Mpi2SasIoUnitControlRequest_t)/4);
- if (!(ioc->base_cmds.status & MPT3_CMD_RESET))
- issue_reset = true;
+ issue_reset =
+ mpt3sas_base_check_cmd_timeout(ioc,
+ ioc->base_cmds.status, mpi_request,
+ sizeof(Mpi2SasIoUnitControlRequest_t)/4);
goto issue_host_reset;
}
if (ioc->base_cmds.status & MPT3_CMD_REPLY_VALID)
* The SCSI Enclosure Processor request message causes the IOC to
* communicate with SES devices to control LED status signals.
*
- * Returns 0 for success, non-zero for failure.
+ * Return: 0 for success, non-zero for failure.
*/
int
mpt3sas_base_scsi_enclosure_processor(struct MPT3SAS_ADAPTER *ioc,
{
u16 smid;
u32 ioc_state;
- bool issue_reset = false;
+ u8 issue_reset = 0;
int rc;
void *request;
u16 wait_state_count;
wait_for_completion_timeout(&ioc->base_cmds.done,
msecs_to_jiffies(10000));
if (!(ioc->base_cmds.status & MPT3_CMD_COMPLETE)) {
- pr_err(MPT3SAS_FMT "%s: timeout\n",
- ioc->name, __func__);
- _debug_dump_mf(mpi_request,
- sizeof(Mpi2SepRequest_t)/4);
- if (!(ioc->base_cmds.status & MPT3_CMD_RESET))
- issue_reset = false;
+ issue_reset =
+ mpt3sas_base_check_cmd_timeout(ioc,
+ ioc->base_cmds.status, mpi_request,
+ sizeof(Mpi2SepRequest_t)/4);
goto issue_host_reset;
}
if (ioc->base_cmds.status & MPT3_CMD_REPLY_VALID)
/**
* _base_get_port_facts - obtain port facts reply and save in ioc
* @ioc: per adapter object
+ * @port: ?
*
- * Returns 0 for success, non-zero for failure.
+ * Return: 0 for success, non-zero for failure.
*/
static int
_base_get_port_facts(struct MPT3SAS_ADAPTER *ioc, int port)
* @ioc: per adapter object
* @timeout:
*
- * Returns 0 for success, non-zero for failure.
+ * Return: 0 for success, non-zero for failure.
*/
static int
_base_wait_for_iocstate(struct MPT3SAS_ADAPTER *ioc, int timeout)
* _base_get_ioc_facts - obtain ioc facts reply and save in ioc
* @ioc: per adapter object
*
- * Returns 0 for success, non-zero for failure.
+ * Return: 0 for success, non-zero for failure.
*/
static int
_base_get_ioc_facts(struct MPT3SAS_ADAPTER *ioc)
facts->WhoInit = mpi_reply.WhoInit;
facts->NumberOfPorts = mpi_reply.NumberOfPorts;
facts->MaxMSIxVectors = mpi_reply.MaxMSIxVectors;
+ if (ioc->msix_enable && (facts->MaxMSIxVectors <=
+ MAX_COMBINED_MSIX_VECTORS(ioc->is_gen35_ioc)))
+ ioc->combined_reply_queue = 0;
facts->RequestCredit = le16_to_cpu(mpi_reply.RequestCredit);
facts->MaxReplyDescriptorPostQueueDepth =
le16_to_cpu(mpi_reply.MaxReplyDescriptorPostQueueDepth);
* _base_send_ioc_init - send ioc_init to firmware
* @ioc: per adapter object
*
- * Returns 0 for success, non-zero for failure.
+ * Return: 0 for success, non-zero for failure.
*/
static int
_base_send_ioc_init(struct MPT3SAS_ADAPTER *ioc)
* @msix_index: MSIX table index supplied by the OS
* @reply: reply message frame(lower 32bit addr)
*
- * Return 1 meaning mf should be freed from _base_interrupt
- * 0 means the mf is freed from this function.
+ * Return: 1 meaning mf should be freed from _base_interrupt
+ * 0 means the mf is freed from this function.
*/
u8
mpt3sas_port_enable_done(struct MPT3SAS_ADAPTER *ioc, u16 smid, u8 msix_index,
* _base_send_port_enable - send port_enable(discovery stuff) to firmware
* @ioc: per adapter object
*
- * Returns 0 for success, non-zero for failure.
+ * Return: 0 for success, non-zero for failure.
*/
static int
_base_send_port_enable(struct MPT3SAS_ADAPTER *ioc)
* mpt3sas_port_enable - initiate firmware discovery (don't wait for reply)
* @ioc: per adapter object
*
- * Returns 0 for success, non-zero for failure.
+ * Return: 0 for success, non-zero for failure.
*/
int
mpt3sas_port_enable(struct MPT3SAS_ADAPTER *ioc)
* Decide whether to wait on discovery to complete. Used to either
* locate boot device, or report volumes ahead of physical devices.
*
- * Returns 1 for wait, 0 for don't wait
+ * Return: 1 for wait, 0 for don't wait.
*/
static int
_base_determine_wait_on_discovery(struct MPT3SAS_ADAPTER *ioc)
* _base_event_notification - send event notification
* @ioc: per adapter object
*
- * Returns 0 for success, non-zero for failure.
+ * Return: 0 for success, non-zero for failure.
*/
static int
_base_event_notification(struct MPT3SAS_ADAPTER *ioc)
/**
* mpt3sas_base_validate_event_type - validating event types
* @ioc: per adapter object
- * @event: firmware event
+ * @event_type: firmware event
*
* This will turn on firmware event notification when application
* ask for that event. We don't mask events that are already enabled.
* _base_diag_reset - the "big hammer" start of day reset
* @ioc: per adapter object
*
- * Returns 0 for success, non-zero for failure.
+ * Return: 0 for success, non-zero for failure.
*/
static int
_base_diag_reset(struct MPT3SAS_ADAPTER *ioc)
* @ioc: per adapter object
* @type: FORCE_BIG_HAMMER or SOFT_RESET
*
- * Returns 0 for success, non-zero for failure.
+ * Return: 0 for success, non-zero for failure.
*/
static int
_base_make_ioc_ready(struct MPT3SAS_ADAPTER *ioc, enum reset_type type)
* _base_make_ioc_operational - put controller in OPERATIONAL state
* @ioc: per adapter object
*
- * Returns 0 for success, non-zero for failure.
+ * Return: 0 for success, non-zero for failure.
*/
static int
_base_make_ioc_operational(struct MPT3SAS_ADAPTER *ioc)
/**
* mpt3sas_base_free_resources - free resources controller resources
* @ioc: per adapter object
- *
- * Return nothing.
*/
void
mpt3sas_base_free_resources(struct MPT3SAS_ADAPTER *ioc)
* mpt3sas_base_attach - attach controller instance
* @ioc: per adapter object
*
- * Returns 0 for success, non-zero for failure.
+ * Return: 0 for success, non-zero for failure.
*/
int
mpt3sas_base_attach(struct MPT3SAS_ADAPTER *ioc)
/**
* mpt3sas_base_detach - remove controller instance
* @ioc: per adapter object
- *
- * Return nothing.
*/
void
mpt3sas_base_detach(struct MPT3SAS_ADAPTER *ioc)
}
/**
- * _base_reset_handler - reset callback handler (for base)
+ * _base_pre_reset_handler - pre reset handler
* @ioc: per adapter object
- * @reset_phase: phase
- *
- * The handler for doing any required cleanup or initialization.
- *
- * The reset phase can be MPT3_IOC_PRE_RESET, MPT3_IOC_AFTER_RESET,
- * MPT3_IOC_DONE_RESET
- *
- * Return nothing.
*/
-static void
-_base_reset_handler(struct MPT3SAS_ADAPTER *ioc, int reset_phase)
+static void _base_pre_reset_handler(struct MPT3SAS_ADAPTER *ioc)
{
- mpt3sas_scsih_reset_handler(ioc, reset_phase);
- mpt3sas_ctl_reset_handler(ioc, reset_phase);
- switch (reset_phase) {
- case MPT3_IOC_PRE_RESET:
- dtmprintk(ioc, pr_info(MPT3SAS_FMT
- "%s: MPT3_IOC_PRE_RESET\n", ioc->name, __func__));
- break;
- case MPT3_IOC_AFTER_RESET:
- dtmprintk(ioc, pr_info(MPT3SAS_FMT
- "%s: MPT3_IOC_AFTER_RESET\n", ioc->name, __func__));
- if (ioc->transport_cmds.status & MPT3_CMD_PENDING) {
- ioc->transport_cmds.status |= MPT3_CMD_RESET;
- mpt3sas_base_free_smid(ioc, ioc->transport_cmds.smid);
- complete(&ioc->transport_cmds.done);
- }
- if (ioc->base_cmds.status & MPT3_CMD_PENDING) {
- ioc->base_cmds.status |= MPT3_CMD_RESET;
- mpt3sas_base_free_smid(ioc, ioc->base_cmds.smid);
- complete(&ioc->base_cmds.done);
- }
- if (ioc->port_enable_cmds.status & MPT3_CMD_PENDING) {
- ioc->port_enable_failed = 1;
- ioc->port_enable_cmds.status |= MPT3_CMD_RESET;
- mpt3sas_base_free_smid(ioc, ioc->port_enable_cmds.smid);
- if (ioc->is_driver_loading) {
- ioc->start_scan_failed =
- MPI2_IOCSTATUS_INTERNAL_ERROR;
- ioc->start_scan = 0;
- ioc->port_enable_cmds.status =
- MPT3_CMD_NOT_USED;
- } else
- complete(&ioc->port_enable_cmds.done);
- }
- if (ioc->config_cmds.status & MPT3_CMD_PENDING) {
- ioc->config_cmds.status |= MPT3_CMD_RESET;
- mpt3sas_base_free_smid(ioc, ioc->config_cmds.smid);
- ioc->config_cmds.smid = USHRT_MAX;
- complete(&ioc->config_cmds.done);
+ mpt3sas_scsih_pre_reset_handler(ioc);
+ mpt3sas_ctl_pre_reset_handler(ioc);
+ dtmprintk(ioc, pr_info(MPT3SAS_FMT
+ "%s: MPT3_IOC_PRE_RESET\n", ioc->name, __func__));
+}
+
+/**
+ * _base_after_reset_handler - after reset handler
+ * @ioc: per adapter object
+ */
+static void _base_after_reset_handler(struct MPT3SAS_ADAPTER *ioc)
+{
+ mpt3sas_scsih_after_reset_handler(ioc);
+ mpt3sas_ctl_after_reset_handler(ioc);
+ dtmprintk(ioc, pr_info(MPT3SAS_FMT
+ "%s: MPT3_IOC_AFTER_RESET\n", ioc->name, __func__));
+ if (ioc->transport_cmds.status & MPT3_CMD_PENDING) {
+ ioc->transport_cmds.status |= MPT3_CMD_RESET;
+ mpt3sas_base_free_smid(ioc, ioc->transport_cmds.smid);
+ complete(&ioc->transport_cmds.done);
+ }
+ if (ioc->base_cmds.status & MPT3_CMD_PENDING) {
+ ioc->base_cmds.status |= MPT3_CMD_RESET;
+ mpt3sas_base_free_smid(ioc, ioc->base_cmds.smid);
+ complete(&ioc->base_cmds.done);
+ }
+ if (ioc->port_enable_cmds.status & MPT3_CMD_PENDING) {
+ ioc->port_enable_failed = 1;
+ ioc->port_enable_cmds.status |= MPT3_CMD_RESET;
+ mpt3sas_base_free_smid(ioc, ioc->port_enable_cmds.smid);
+ if (ioc->is_driver_loading) {
+ ioc->start_scan_failed =
+ MPI2_IOCSTATUS_INTERNAL_ERROR;
+ ioc->start_scan = 0;
+ ioc->port_enable_cmds.status =
+ MPT3_CMD_NOT_USED;
+ } else {
+ complete(&ioc->port_enable_cmds.done);
}
- break;
- case MPT3_IOC_DONE_RESET:
- dtmprintk(ioc, pr_info(MPT3SAS_FMT
- "%s: MPT3_IOC_DONE_RESET\n", ioc->name, __func__));
- break;
}
+ if (ioc->config_cmds.status & MPT3_CMD_PENDING) {
+ ioc->config_cmds.status |= MPT3_CMD_RESET;
+ mpt3sas_base_free_smid(ioc, ioc->config_cmds.smid);
+ ioc->config_cmds.smid = USHRT_MAX;
+ complete(&ioc->config_cmds.done);
+ }
+}
+
+/**
+ * _base_reset_done_handler - reset done handler
+ * @ioc: per adapter object
+ */
+static void _base_reset_done_handler(struct MPT3SAS_ADAPTER *ioc)
+{
+ mpt3sas_scsih_reset_done_handler(ioc);
+ mpt3sas_ctl_reset_done_handler(ioc);
+ dtmprintk(ioc, pr_info(MPT3SAS_FMT
+ "%s: MPT3_IOC_DONE_RESET\n", ioc->name, __func__));
}
/**
return;
/* pending command count */
- ioc->pending_io_count = atomic_read(&ioc->shost->host_busy);
+ ioc->pending_io_count = scsi_host_busy(ioc->shost);
if (!ioc->pending_io_count)
return;
* @ioc: Pointer to MPT_ADAPTER structure
* @type: FORCE_BIG_HAMMER or SOFT_RESET
*
- * Returns 0 for success, non-zero for failure.
+ * Return: 0 for success, non-zero for failure.
*/
int
mpt3sas_base_hard_reset_handler(struct MPT3SAS_ADAPTER *ioc,
mpt3sas_halt_firmware(ioc);
/* wait for an active reset in progress to complete */
- if (!mutex_trylock(&ioc->reset_in_progress_mutex)) {
- do {
- ssleep(1);
- } while (ioc->shost_recovery == 1);
- dtmprintk(ioc, pr_info(MPT3SAS_FMT "%s: exit\n", ioc->name,
- __func__));
- return ioc->ioc_reset_in_progress_status;
- }
+ mutex_lock(&ioc->reset_in_progress_mutex);
spin_lock_irqsave(&ioc->ioc_reset_in_progress_lock, flags);
ioc->shost_recovery = 1;
if ((ioc_state & MPI2_IOC_STATE_MASK) == MPI2_IOC_STATE_FAULT)
is_fault = 1;
}
- _base_reset_handler(ioc, MPT3_IOC_PRE_RESET);
+ _base_pre_reset_handler(ioc);
mpt3sas_wait_for_commands_to_complete(ioc);
_base_mask_interrupts(ioc);
r = _base_make_ioc_ready(ioc, type);
if (r)
goto out;
- _base_reset_handler(ioc, MPT3_IOC_AFTER_RESET);
+ _base_after_reset_handler(ioc);
/* If this hard reset is called while port enable is active, then
* there is no reason to call make_ioc_operational
r = _base_make_ioc_operational(ioc);
if (!r)
- _base_reset_handler(ioc, MPT3_IOC_DONE_RESET);
+ _base_reset_done_handler(ioc);
out:
dtmprintk(ioc, pr_info(MPT3SAS_FMT "%s: %s\n",
ioc->name, __func__, ((r == 0) ? "SUCCESS" : "FAILED")));
spin_lock_irqsave(&ioc->ioc_reset_in_progress_lock, flags);
- ioc->ioc_reset_in_progress_status = r;
ioc->shost_recovery = 0;
spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags);
ioc->ioc_reset_count++;
projects / linux.git / blobdiff