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@@ -1,1425 +0,0 @@
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-/*
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- * QLogic Fibre Channel HBA Driver
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- * Copyright (c) 2003-2005 QLogic Corporation
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- *
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- * See LICENSE.qla2xxx for copyright and licensing details.
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- */
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-#include "qla_def.h"
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-
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-/**
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- * IO descriptor handle definitions.
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- *
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- * Signature form:
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- *
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- * |31------28|27-------------------12|11-------0|
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- * | Type | Rolling Signature | Index |
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- * |----------|-----------------------|----------|
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- *
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- **/
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-
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-#define HDL_TYPE_SCSI 0
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-#define HDL_TYPE_ASYNC_IOCB 0x0A
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-
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-#define HDL_INDEX_BITS 12
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-#define HDL_ITER_BITS 16
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-#define HDL_TYPE_BITS 4
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-
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-#define HDL_INDEX_MASK ((1UL << HDL_INDEX_BITS) - 1)
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-#define HDL_ITER_MASK ((1UL << HDL_ITER_BITS) - 1)
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-#define HDL_TYPE_MASK ((1UL << HDL_TYPE_BITS) - 1)
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-
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-#define HDL_INDEX_SHIFT 0
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-#define HDL_ITER_SHIFT (HDL_INDEX_SHIFT + HDL_INDEX_BITS)
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-#define HDL_TYPE_SHIFT (HDL_ITER_SHIFT + HDL_ITER_BITS)
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-
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-/* Local Prototypes. */
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-static inline uint32_t qla2x00_to_handle(uint16_t, uint16_t, uint16_t);
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-static inline uint16_t qla2x00_handle_to_idx(uint32_t);
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-static inline uint32_t qla2x00_iodesc_to_handle(struct io_descriptor *);
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-static inline struct io_descriptor *qla2x00_handle_to_iodesc(scsi_qla_host_t *,
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- uint32_t);
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-
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-static inline struct io_descriptor *qla2x00_alloc_iodesc(scsi_qla_host_t *);
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-static inline void qla2x00_free_iodesc(struct io_descriptor *);
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-static inline void qla2x00_init_io_descriptors(scsi_qla_host_t *);
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-
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-static void qla2x00_iodesc_timeout(unsigned long);
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-static inline void qla2x00_add_iodesc_timer(struct io_descriptor *);
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-static inline void qla2x00_remove_iodesc_timer(struct io_descriptor *);
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-
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-static inline void qla2x00_update_login_fcport(scsi_qla_host_t *,
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- struct mbx_entry *, fc_port_t *);
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-
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-static int qla2x00_send_abort_iocb(scsi_qla_host_t *, struct io_descriptor *,
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- uint32_t, int);
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-static int qla2x00_send_abort_iocb_cb(scsi_qla_host_t *, struct io_descriptor *,
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- struct mbx_entry *);
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-
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-static int qla2x00_send_adisc_iocb(scsi_qla_host_t *, struct io_descriptor *,
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- int);
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-static int qla2x00_send_adisc_iocb_cb(scsi_qla_host_t *, struct io_descriptor *,
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- struct mbx_entry *);
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-
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-static int qla2x00_send_logout_iocb(scsi_qla_host_t *, struct io_descriptor *,
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- int);
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-static int qla2x00_send_logout_iocb_cb(scsi_qla_host_t *,
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- struct io_descriptor *, struct mbx_entry *);
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-
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-static int qla2x00_send_login_iocb(scsi_qla_host_t *, struct io_descriptor *,
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- port_id_t *, int);
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-static int qla2x00_send_login_iocb_cb(scsi_qla_host_t *, struct io_descriptor *,
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- struct mbx_entry *);
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-
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-/**
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- * Mailbox IOCB callback array.
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- **/
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-static int (*iocb_function_cb_list[LAST_IOCB_CB])
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- (scsi_qla_host_t *, struct io_descriptor *, struct mbx_entry *) = {
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-
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- qla2x00_send_abort_iocb_cb,
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- qla2x00_send_adisc_iocb_cb,
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- qla2x00_send_logout_iocb_cb,
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- qla2x00_send_login_iocb_cb,
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-};
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-
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-
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-/**
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- * Generic IO descriptor handle routines.
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- **/
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-
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-/**
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- * qla2x00_to_handle() - Create a descriptor handle.
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- * @type: descriptor type
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- * @iter: descriptor rolling signature
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- * @idx: index to the descriptor array
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- *
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- * Returns a composite handle based in the @type, @iter, and @idx.
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- */
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-static inline uint32_t
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-qla2x00_to_handle(uint16_t type, uint16_t iter, uint16_t idx)
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-{
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- return ((uint32_t)(((uint32_t)type << HDL_TYPE_SHIFT) |
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- ((uint32_t)iter << HDL_ITER_SHIFT) |
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- ((uint32_t)idx << HDL_INDEX_SHIFT)));
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-}
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-
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-/**
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- * qla2x00_handle_to_idx() - Retrive the index for a given handle.
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- * @handle: descriptor handle
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- *
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- * Returns the index specified by the @handle.
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- */
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-static inline uint16_t
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-qla2x00_handle_to_idx(uint32_t handle)
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-{
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- return ((uint16_t)(((handle) >> HDL_INDEX_SHIFT) & HDL_INDEX_MASK));
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-}
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-
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-/**
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- * qla2x00_iodesc_to_handle() - Convert an IO descriptor to a unique handle.
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- * @iodesc: io descriptor
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- *
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- * Returns a unique handle for @iodesc.
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- */
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-static inline uint32_t
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-qla2x00_iodesc_to_handle(struct io_descriptor *iodesc)
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-{
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- uint32_t handle;
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-
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- handle = qla2x00_to_handle(HDL_TYPE_ASYNC_IOCB,
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- ++iodesc->ha->iodesc_signature, iodesc->idx);
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- iodesc->signature = handle;
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-
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- return (handle);
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-}
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-
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-/**
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- * qla2x00_handle_to_iodesc() - Retrieve an IO descriptor given a unique handle.
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- * @ha: HA context
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- * @handle: handle to io descriptor
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- *
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- * Returns a pointer to the io descriptor, or NULL, if the io descriptor does
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- * not exist or the io descriptors signature does not @handle.
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- */
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-static inline struct io_descriptor *
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-qla2x00_handle_to_iodesc(scsi_qla_host_t *ha, uint32_t handle)
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-{
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- uint16_t idx;
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- struct io_descriptor *iodesc;
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-
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- idx = qla2x00_handle_to_idx(handle);
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- iodesc = &ha->io_descriptors[idx];
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- if (iodesc)
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- if (iodesc->signature != handle)
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- iodesc = NULL;
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-
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- return (iodesc);
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-}
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-
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-
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-/**
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- * IO descriptor allocation routines.
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- **/
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-
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-/**
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- * qla2x00_alloc_iodesc() - Allocate an IO descriptor from the pool.
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- * @ha: HA context
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- *
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- * Returns a pointer to the allocated io descriptor, or NULL, if none available.
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- */
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-static inline struct io_descriptor *
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-qla2x00_alloc_iodesc(scsi_qla_host_t *ha)
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-{
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- uint16_t iter;
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- struct io_descriptor *iodesc;
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-
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- iodesc = NULL;
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- for (iter = 0; iter < MAX_IO_DESCRIPTORS; iter++) {
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- if (ha->io_descriptors[iter].used)
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- continue;
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-
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- iodesc = &ha->io_descriptors[iter];
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- iodesc->used = 1;
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- iodesc->idx = iter;
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- init_timer(&iodesc->timer);
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- iodesc->ha = ha;
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- iodesc->signature = qla2x00_iodesc_to_handle(iodesc);
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- break;
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- }
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-
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- return (iodesc);
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-}
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-
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-/**
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- * qla2x00_free_iodesc() - Free an IO descriptor.
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- * @iodesc: io descriptor
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- *
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- * NOTE: The io descriptors timer *must* be stopped before it can be free'd.
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- */
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-static inline void
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-qla2x00_free_iodesc(struct io_descriptor *iodesc)
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-{
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- iodesc->used = 0;
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- iodesc->signature = 0;
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-}
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-
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-/**
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- * qla2x00_remove_iodesc_timer() - Remove an active timer from an IO descriptor.
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- * @iodesc: io descriptor
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- */
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-static inline void
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-qla2x00_remove_iodesc_timer(struct io_descriptor *iodesc)
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-{
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- if (iodesc->timer.function != NULL) {
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- del_timer_sync(&iodesc->timer);
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- iodesc->timer.data = (unsigned long) NULL;
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- iodesc->timer.function = NULL;
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- }
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-}
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-
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-/**
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- * qla2x00_init_io_descriptors() - Initialize the pool of IO descriptors.
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- * @ha: HA context
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- */
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-static inline void
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-qla2x00_init_io_descriptors(scsi_qla_host_t *ha)
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-{
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- uint16_t iter;
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-
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- for (iter = 0; iter < MAX_IO_DESCRIPTORS; iter++) {
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- if (!ha->io_descriptors[iter].used)
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- continue;
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-
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- qla2x00_remove_iodesc_timer(&ha->io_descriptors[iter]);
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- qla2x00_free_iodesc(&ha->io_descriptors[iter]);
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- }
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-}
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-
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-
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-/**
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- * IO descriptor timer routines.
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- **/
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-
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-/**
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- * qla2x00_iodesc_timeout() - Timeout IO descriptor handler.
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- * @data: io descriptor
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- */
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-static void
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-qla2x00_iodesc_timeout(unsigned long data)
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-{
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- struct io_descriptor *iodesc;
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-
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- iodesc = (struct io_descriptor *) data;
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-
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- DEBUG14(printk("scsi(%ld): IO descriptor timeout, index=%x "
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- "signature=%08x, scheduling ISP abort.\n", iodesc->ha->host_no,
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- iodesc->idx, iodesc->signature));
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-
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- qla2x00_free_iodesc(iodesc);
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-
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- qla_printk(KERN_WARNING, iodesc->ha,
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- "IO descriptor timeout. Scheduling ISP abort.\n");
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- set_bit(ISP_ABORT_NEEDED, &iodesc->ha->dpc_flags);
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-}
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-
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-/**
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- * qla2x00_add_iodesc_timer() - Add and start a timer for an IO descriptor.
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- * @iodesc: io descriptor
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- *
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- * NOTE:
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- * The firmware shall timeout an outstanding mailbox IOCB in 2 * R_A_TOV (in
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- * tenths of a second) after it hits the wire. But, if there are any request
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- * resource contraints (i.e. during heavy I/O), exchanges can be held off for
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- * at most R_A_TOV. Therefore, the driver will wait 4 * R_A_TOV before
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- * scheduling a recovery (big hammer).
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- */
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-static inline void
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-qla2x00_add_iodesc_timer(struct io_descriptor *iodesc)
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-{
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- unsigned long timeout;
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-
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- timeout = (iodesc->ha->r_a_tov * 4) / 10;
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- init_timer(&iodesc->timer);
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- iodesc->timer.data = (unsigned long) iodesc;
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- iodesc->timer.expires = jiffies + (timeout * HZ);
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- iodesc->timer.function =
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- (void (*) (unsigned long)) qla2x00_iodesc_timeout;
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- add_timer(&iodesc->timer);
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-}
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-
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-/**
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- * IO descriptor support routines.
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- **/
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-
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-/**
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- * qla2x00_update_login_fcport() - Update fcport data after login processing.
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- * @ha: HA context
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- * @mbxstat: Mailbox command status IOCB
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- * @fcport: port to update
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- */
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-static inline void
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-qla2x00_update_login_fcport(scsi_qla_host_t *ha, struct mbx_entry *mbxstat,
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- fc_port_t *fcport)
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-{
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- if (le16_to_cpu(mbxstat->mb1) & BIT_0) {
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- fcport->port_type = FCT_INITIATOR;
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- } else {
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- fcport->port_type = FCT_TARGET;
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- if (le16_to_cpu(mbxstat->mb1) & BIT_1) {
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- fcport->flags |= FCF_TAPE_PRESENT;
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- }
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- }
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- fcport->login_retry = 0;
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- fcport->port_login_retry_count = ha->port_down_retry_count *
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- PORT_RETRY_TIME;
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- atomic_set(&fcport->port_down_timer, ha->port_down_retry_count *
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- PORT_RETRY_TIME);
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- fcport->flags |= FCF_FABRIC_DEVICE;
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- fcport->flags &= ~FCF_FAILOVER_NEEDED;
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- fcport->iodesc_idx_sent = IODESC_INVALID_INDEX;
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- atomic_set(&fcport->state, FCS_ONLINE);
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-}
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-
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-
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-/**
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- * Mailbox IOCB commands.
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- **/
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-
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-/**
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- * qla2x00_get_mbx_iocb_entry() - Retrieve an IOCB from the request queue.
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- * @ha: HA context
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- * @handle: handle to io descriptor
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- *
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- * Returns a pointer to the reqest entry, or NULL, if none were available.
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- */
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-static inline struct mbx_entry *
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-qla2x00_get_mbx_iocb_entry(scsi_qla_host_t *ha, uint32_t handle)
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-{
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- uint16_t cnt;
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- struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
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- struct mbx_entry *mbxentry;
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-
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- mbxentry = NULL;
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-
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- if (ha->req_q_cnt < 3) {
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- cnt = qla2x00_debounce_register(ISP_REQ_Q_OUT(ha, reg));
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- if (ha->req_ring_index < cnt)
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- ha->req_q_cnt = cnt - ha->req_ring_index;
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- else
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- ha->req_q_cnt = ha->request_q_length -
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- (ha->req_ring_index - cnt);
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- }
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- if (ha->req_q_cnt >= 3) {
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- mbxentry = (struct mbx_entry *)ha->request_ring_ptr;
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-
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- memset(mbxentry, 0, sizeof(struct mbx_entry));
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- mbxentry->entry_type = MBX_IOCB_TYPE;
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- mbxentry->entry_count = 1;
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- mbxentry->sys_define1 = SOURCE_ASYNC_IOCB;
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- mbxentry->handle = handle;
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- }
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- return (mbxentry);
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-}
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-
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-/**
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- * qla2x00_send_abort_iocb() - Issue an abort IOCB to the firmware.
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- * @ha: HA context
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- * @iodesc: io descriptor
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- * @handle_to_abort: firmware handle to abort
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- * @ha_locked: is function called with the hardware lock
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- *
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- * Returns QLA_SUCCESS if the IOCB was issued.
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- */
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-static int
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-qla2x00_send_abort_iocb(scsi_qla_host_t *ha, struct io_descriptor *iodesc,
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- uint32_t handle_to_abort, int ha_locked)
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-{
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- unsigned long flags = 0;
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- struct mbx_entry *mbxentry;
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-
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- /* Send marker if required. */
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- if (qla2x00_issue_marker(ha, ha_locked) != QLA_SUCCESS)
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- return (QLA_FUNCTION_FAILED);
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-
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- if (!ha_locked)
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- spin_lock_irqsave(&ha->hardware_lock, flags);
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-
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- /* Build abort mailbox IOCB. */
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- mbxentry = qla2x00_get_mbx_iocb_entry(ha, iodesc->signature);
|
|
|
- if (mbxentry == NULL) {
|
|
|
- if (!ha_locked)
|
|
|
- spin_unlock_irqrestore(&ha->hardware_lock, flags);
|
|
|
-
|
|
|
- return (QLA_FUNCTION_FAILED);
|
|
|
- }
|
|
|
- mbxentry->mb0 = __constant_cpu_to_le16(MBC_ABORT_COMMAND);
|
|
|
- mbxentry->mb1 = mbxentry->loop_id.extended =
|
|
|
- cpu_to_le16(iodesc->remote_fcport->loop_id);
|
|
|
- mbxentry->mb2 = LSW(handle_to_abort);
|
|
|
- mbxentry->mb3 = MSW(handle_to_abort);
|
|
|
- wmb();
|
|
|
-
|
|
|
- qla2x00_add_iodesc_timer(iodesc);
|
|
|
-
|
|
|
- /* Issue command to ISP. */
|
|
|
- qla2x00_isp_cmd(ha);
|
|
|
-
|
|
|
- if (!ha_locked)
|
|
|
- spin_unlock_irqrestore(&ha->hardware_lock, flags);
|
|
|
-
|
|
|
- DEBUG14(printk("scsi(%ld): Sending Abort IOCB (%08x) to [%x], aborting "
|
|
|
- "%08x.\n", ha->host_no, iodesc->signature,
|
|
|
- iodesc->remote_fcport->loop_id, handle_to_abort));
|
|
|
-
|
|
|
- return (QLA_SUCCESS);
|
|
|
-}
|
|
|
-
|
|
|
-/**
|
|
|
- * qla2x00_send_abort_iocb_cb() - Abort IOCB callback.
|
|
|
- * @ha: HA context
|
|
|
- * @iodesc: io descriptor
|
|
|
- * @mbxstat: mailbox status IOCB
|
|
|
- *
|
|
|
- * Returns QLA_SUCCESS if @iodesc can be freed by the caller, else, @iodesc
|
|
|
- * will be used for a retry.
|
|
|
- */
|
|
|
-static int
|
|
|
-qla2x00_send_abort_iocb_cb(scsi_qla_host_t *ha, struct io_descriptor *iodesc,
|
|
|
- struct mbx_entry *mbxstat)
|
|
|
-{
|
|
|
- DEBUG14(printk("scsi(%ld): Abort IOCB -- sent to [%x/%02x%02x%02x], "
|
|
|
- "status=%x mb0=%x.\n", ha->host_no, iodesc->remote_fcport->loop_id,
|
|
|
- iodesc->d_id.b.domain, iodesc->d_id.b.area, iodesc->d_id.b.al_pa,
|
|
|
- le16_to_cpu(mbxstat->status), le16_to_cpu(mbxstat->mb0)));
|
|
|
-
|
|
|
- return (QLA_SUCCESS);
|
|
|
-}
|
|
|
-
|
|
|
-
|
|
|
-/**
|
|
|
- * qla2x00_send_adisc_iocb() - Issue a Get Port Database IOCB to the firmware.
|
|
|
- * @ha: HA context
|
|
|
- * @iodesc: io descriptor
|
|
|
- * @ha_locked: is function called with the hardware lock
|
|
|
- *
|
|
|
- * Returns QLA_SUCCESS if the IOCB was issued.
|
|
|
- */
|
|
|
-static int
|
|
|
-qla2x00_send_adisc_iocb(scsi_qla_host_t *ha, struct io_descriptor *iodesc,
|
|
|
- int ha_locked)
|
|
|
-{
|
|
|
- unsigned long flags = 0;
|
|
|
- struct mbx_entry *mbxentry;
|
|
|
-
|
|
|
- /* Send marker if required. */
|
|
|
- if (qla2x00_issue_marker(ha, ha_locked) != QLA_SUCCESS)
|
|
|
- return (QLA_FUNCTION_FAILED);
|
|
|
-
|
|
|
- if (!ha_locked)
|
|
|
- spin_lock_irqsave(&ha->hardware_lock, flags);
|
|
|
-
|
|
|
- /* Build Get Port Database IOCB. */
|
|
|
- mbxentry = qla2x00_get_mbx_iocb_entry(ha, iodesc->signature);
|
|
|
- if (mbxentry == NULL) {
|
|
|
- if (!ha_locked)
|
|
|
- spin_unlock_irqrestore(&ha->hardware_lock, flags);
|
|
|
-
|
|
|
- return (QLA_FUNCTION_FAILED);
|
|
|
- }
|
|
|
- mbxentry->mb0 = __constant_cpu_to_le16(MBC_GET_PORT_DATABASE);
|
|
|
- mbxentry->mb1 = mbxentry->loop_id.extended =
|
|
|
- cpu_to_le16(iodesc->remote_fcport->loop_id);
|
|
|
- mbxentry->mb2 = cpu_to_le16(MSW(LSD(ha->iodesc_pd_dma)));
|
|
|
- mbxentry->mb3 = cpu_to_le16(LSW(LSD(ha->iodesc_pd_dma)));
|
|
|
- mbxentry->mb6 = cpu_to_le16(MSW(MSD(ha->iodesc_pd_dma)));
|
|
|
- mbxentry->mb7 = cpu_to_le16(LSW(MSD(ha->iodesc_pd_dma)));
|
|
|
- mbxentry->mb10 = __constant_cpu_to_le16(BIT_0);
|
|
|
- wmb();
|
|
|
-
|
|
|
- qla2x00_add_iodesc_timer(iodesc);
|
|
|
-
|
|
|
- /* Issue command to ISP. */
|
|
|
- qla2x00_isp_cmd(ha);
|
|
|
-
|
|
|
- if (!ha_locked)
|
|
|
- spin_unlock_irqrestore(&ha->hardware_lock, flags);
|
|
|
-
|
|
|
- DEBUG14(printk("scsi(%ld): Sending Adisc IOCB (%08x) to [%x].\n",
|
|
|
- ha->host_no, iodesc->signature, iodesc->remote_fcport->loop_id));
|
|
|
-
|
|
|
- return (QLA_SUCCESS);
|
|
|
-}
|
|
|
-
|
|
|
-/**
|
|
|
- * qla2x00_send_adisc_iocb_cb() - Get Port Database IOCB callback.
|
|
|
- * @ha: HA context
|
|
|
- * @iodesc: io descriptor
|
|
|
- * @mbxstat: mailbox status IOCB
|
|
|
- *
|
|
|
- * Returns QLA_SUCCESS if @iodesc can be freed by the caller, else, @iodesc
|
|
|
- * will be used for a retry.
|
|
|
- */
|
|
|
-static int
|
|
|
-qla2x00_send_adisc_iocb_cb(scsi_qla_host_t *ha, struct io_descriptor *iodesc,
|
|
|
- struct mbx_entry *mbxstat)
|
|
|
-{
|
|
|
- fc_port_t *remote_fcport;
|
|
|
-
|
|
|
- remote_fcport = iodesc->remote_fcport;
|
|
|
-
|
|
|
- /* Ensure the port IDs are consistent. */
|
|
|
- if (remote_fcport->d_id.b24 != iodesc->d_id.b24) {
|
|
|
- DEBUG14(printk("scsi(%ld): Adisc IOCB -- ignoring, remote port "
|
|
|
- "id changed from [%02x%02x%02x] to [%02x%02x%02x].\n",
|
|
|
- ha->host_no, remote_fcport->d_id.b.domain,
|
|
|
- remote_fcport->d_id.b.area, remote_fcport->d_id.b.al_pa,
|
|
|
- iodesc->d_id.b.domain, iodesc->d_id.b.area,
|
|
|
- iodesc->d_id.b.al_pa));
|
|
|
-
|
|
|
- return (QLA_SUCCESS);
|
|
|
- }
|
|
|
-
|
|
|
- /* Only process the last command. */
|
|
|
- if (remote_fcport->iodesc_idx_sent != iodesc->idx) {
|
|
|
- DEBUG14(printk("scsi(%ld): Adisc IOCB -- ignoring, sent to "
|
|
|
- "[%02x%02x%02x], expected %x, received %x.\n", ha->host_no,
|
|
|
- iodesc->d_id.b.domain, iodesc->d_id.b.area,
|
|
|
- iodesc->d_id.b.al_pa, remote_fcport->iodesc_idx_sent,
|
|
|
- iodesc->idx));
|
|
|
-
|
|
|
- return (QLA_SUCCESS);
|
|
|
- }
|
|
|
-
|
|
|
- if (le16_to_cpu(mbxstat->status) == CS_COMPLETE) {
|
|
|
- DEBUG14(printk("scsi(%ld): Adisc IOCB -- marking "
|
|
|
- "[%x/%02x%02x%02x] online.\n", ha->host_no,
|
|
|
- remote_fcport->loop_id, remote_fcport->d_id.b.domain,
|
|
|
- remote_fcport->d_id.b.area, remote_fcport->d_id.b.al_pa));
|
|
|
-
|
|
|
- atomic_set(&remote_fcport->state, FCS_ONLINE);
|
|
|
- } else {
|
|
|
- DEBUG14(printk("scsi(%ld): Adisc IOCB -- marking "
|
|
|
- "[%x/%02x%02x%02x] lost, status=%x mb0=%x.\n", ha->host_no,
|
|
|
- remote_fcport->loop_id, remote_fcport->d_id.b.domain,
|
|
|
- remote_fcport->d_id.b.area, remote_fcport->d_id.b.al_pa,
|
|
|
- le16_to_cpu(mbxstat->status), le16_to_cpu(mbxstat->mb0)));
|
|
|
-
|
|
|
- if (atomic_read(&remote_fcport->state) != FCS_DEVICE_DEAD)
|
|
|
- atomic_set(&remote_fcport->state, FCS_DEVICE_LOST);
|
|
|
- }
|
|
|
- remote_fcport->iodesc_idx_sent = IODESC_INVALID_INDEX;
|
|
|
-
|
|
|
- return (QLA_SUCCESS);
|
|
|
-}
|
|
|
-
|
|
|
-
|
|
|
-/**
|
|
|
- * qla2x00_send_logout_iocb() - Issue a fabric port logout IOCB to the firmware.
|
|
|
- * @ha: HA context
|
|
|
- * @iodesc: io descriptor
|
|
|
- * @ha_locked: is function called with the hardware lock
|
|
|
- *
|
|
|
- * Returns QLA_SUCCESS if the IOCB was issued.
|
|
|
- */
|
|
|
-static int
|
|
|
-qla2x00_send_logout_iocb(scsi_qla_host_t *ha, struct io_descriptor *iodesc,
|
|
|
- int ha_locked)
|
|
|
-{
|
|
|
- unsigned long flags = 0;
|
|
|
- struct mbx_entry *mbxentry;
|
|
|
-
|
|
|
- /* Send marker if required. */
|
|
|
- if (qla2x00_issue_marker(ha, ha_locked) != QLA_SUCCESS)
|
|
|
- return (QLA_FUNCTION_FAILED);
|
|
|
-
|
|
|
- if (!ha_locked)
|
|
|
- spin_lock_irqsave(&ha->hardware_lock, flags);
|
|
|
-
|
|
|
- /* Build fabric port logout mailbox IOCB. */
|
|
|
- mbxentry = qla2x00_get_mbx_iocb_entry(ha, iodesc->signature);
|
|
|
- if (mbxentry == NULL) {
|
|
|
- if (!ha_locked)
|
|
|
- spin_unlock_irqrestore(&ha->hardware_lock, flags);
|
|
|
-
|
|
|
- return (QLA_FUNCTION_FAILED);
|
|
|
- }
|
|
|
- mbxentry->mb0 = __constant_cpu_to_le16(MBC_LOGOUT_FABRIC_PORT);
|
|
|
- mbxentry->mb1 = mbxentry->loop_id.extended =
|
|
|
- cpu_to_le16(iodesc->remote_fcport->loop_id);
|
|
|
- wmb();
|
|
|
-
|
|
|
- qla2x00_add_iodesc_timer(iodesc);
|
|
|
-
|
|
|
- /* Issue command to ISP. */
|
|
|
- qla2x00_isp_cmd(ha);
|
|
|
-
|
|
|
- if (!ha_locked)
|
|
|
- spin_unlock_irqrestore(&ha->hardware_lock, flags);
|
|
|
-
|
|
|
- DEBUG14(printk("scsi(%ld): Sending Logout IOCB (%08x) to [%x].\n",
|
|
|
- ha->host_no, iodesc->signature, iodesc->remote_fcport->loop_id));
|
|
|
-
|
|
|
- return (QLA_SUCCESS);
|
|
|
-}
|
|
|
-
|
|
|
-/**
|
|
|
- * qla2x00_send_logout_iocb_cb() - Fabric port logout IOCB callback.
|
|
|
- * @ha: HA context
|
|
|
- * @iodesc: io descriptor
|
|
|
- * @mbxstat: mailbox status IOCB
|
|
|
- *
|
|
|
- * Returns QLA_SUCCESS if @iodesc can be freed by the caller, else, @iodesc
|
|
|
- * will be used for a retry.
|
|
|
- */
|
|
|
-static int
|
|
|
-qla2x00_send_logout_iocb_cb(scsi_qla_host_t *ha, struct io_descriptor *iodesc,
|
|
|
- struct mbx_entry *mbxstat)
|
|
|
-{
|
|
|
- DEBUG14(printk("scsi(%ld): Logout IOCB -- sent to [%x/%02x%02x%02x], "
|
|
|
- "status=%x mb0=%x mb1=%x.\n", ha->host_no,
|
|
|
- iodesc->remote_fcport->loop_id,
|
|
|
- iodesc->remote_fcport->d_id.b.domain,
|
|
|
- iodesc->remote_fcport->d_id.b.area,
|
|
|
- iodesc->remote_fcport->d_id.b.al_pa, le16_to_cpu(mbxstat->status),
|
|
|
- le16_to_cpu(mbxstat->mb0), le16_to_cpu(mbxstat->mb1)));
|
|
|
-
|
|
|
- return (QLA_SUCCESS);
|
|
|
-}
|
|
|
-
|
|
|
-
|
|
|
-/**
|
|
|
- * qla2x00_send_login_iocb() - Issue a fabric port login IOCB to the firmware.
|
|
|
- * @ha: HA context
|
|
|
- * @iodesc: io descriptor
|
|
|
- * @d_id: port id for device
|
|
|
- * @ha_locked: is function called with the hardware lock
|
|
|
- *
|
|
|
- * Returns QLA_SUCCESS if the IOCB was issued.
|
|
|
- */
|
|
|
-static int
|
|
|
-qla2x00_send_login_iocb(scsi_qla_host_t *ha, struct io_descriptor *iodesc,
|
|
|
- port_id_t *d_id, int ha_locked)
|
|
|
-{
|
|
|
- unsigned long flags = 0;
|
|
|
- struct mbx_entry *mbxentry;
|
|
|
-
|
|
|
- /* Send marker if required. */
|
|
|
- if (qla2x00_issue_marker(ha, ha_locked) != QLA_SUCCESS)
|
|
|
- return (QLA_FUNCTION_FAILED);
|
|
|
-
|
|
|
- if (!ha_locked)
|
|
|
- spin_lock_irqsave(&ha->hardware_lock, flags);
|
|
|
-
|
|
|
- /* Build fabric port login mailbox IOCB. */
|
|
|
- mbxentry = qla2x00_get_mbx_iocb_entry(ha, iodesc->signature);
|
|
|
- if (mbxentry == NULL) {
|
|
|
- if (!ha_locked)
|
|
|
- spin_unlock_irqrestore(&ha->hardware_lock, flags);
|
|
|
-
|
|
|
- return (QLA_FUNCTION_FAILED);
|
|
|
- }
|
|
|
- mbxentry->mb0 = __constant_cpu_to_le16(MBC_LOGIN_FABRIC_PORT);
|
|
|
- mbxentry->mb1 = mbxentry->loop_id.extended =
|
|
|
- cpu_to_le16(iodesc->remote_fcport->loop_id);
|
|
|
- mbxentry->mb2 = cpu_to_le16(d_id->b.domain);
|
|
|
- mbxentry->mb3 = cpu_to_le16(d_id->b.area << 8 | d_id->b.al_pa);
|
|
|
- mbxentry->mb10 = __constant_cpu_to_le16(BIT_0);
|
|
|
- wmb();
|
|
|
-
|
|
|
- qla2x00_add_iodesc_timer(iodesc);
|
|
|
-
|
|
|
- /* Issue command to ISP. */
|
|
|
- qla2x00_isp_cmd(ha);
|
|
|
-
|
|
|
- if (!ha_locked)
|
|
|
- spin_unlock_irqrestore(&ha->hardware_lock, flags);
|
|
|
-
|
|
|
- DEBUG14(printk("scsi(%ld): Sending Login IOCB (%08x) to "
|
|
|
- "[%x/%02x%02x%02x].\n", ha->host_no, iodesc->signature,
|
|
|
- iodesc->remote_fcport->loop_id, d_id->b.domain, d_id->b.area,
|
|
|
- d_id->b.al_pa));
|
|
|
-
|
|
|
- return (QLA_SUCCESS);
|
|
|
-}
|
|
|
-
|
|
|
-/**
|
|
|
- * qla2x00_send_login_iocb_cb() - Fabric port logout IOCB callback.
|
|
|
- * @ha: HA context
|
|
|
- * @iodesc: io descriptor
|
|
|
- * @mbxstat: mailbox status IOCB
|
|
|
- *
|
|
|
- * Returns QLA_SUCCESS if @iodesc can be freed by the caller, else, @iodesc
|
|
|
- * will be used for a retry.
|
|
|
- */
|
|
|
-static int
|
|
|
-qla2x00_send_login_iocb_cb(scsi_qla_host_t *ha, struct io_descriptor *iodesc,
|
|
|
- struct mbx_entry *mbxstat)
|
|
|
-{
|
|
|
- int rval;
|
|
|
- fc_port_t *fcport, *remote_fcport, *exist_fcport;
|
|
|
- struct io_descriptor *abort_iodesc, *login_iodesc;
|
|
|
- uint16_t status, mb[8];
|
|
|
- uint16_t reuse;
|
|
|
- uint16_t remote_loopid;
|
|
|
- port_id_t remote_did, inuse_did;
|
|
|
-
|
|
|
- remote_fcport = iodesc->remote_fcport;
|
|
|
-
|
|
|
- /* Only process the last command. */
|
|
|
- if (remote_fcport->iodesc_idx_sent != iodesc->idx) {
|
|
|
- DEBUG14(printk("scsi(%ld): Login IOCB -- ignoring, sent to "
|
|
|
- "[%02x%02x%02x], expected %x, received %x.\n",
|
|
|
- ha->host_no, iodesc->d_id.b.domain, iodesc->d_id.b.area,
|
|
|
- iodesc->d_id.b.al_pa, remote_fcport->iodesc_idx_sent,
|
|
|
- iodesc->idx));
|
|
|
-
|
|
|
- /* Free RSCN fcport resources. */
|
|
|
- if (remote_fcport->port_type == FCT_RSCN) {
|
|
|
- DEBUG14(printk("scsi(%ld): Login IOCB -- Freeing RSCN "
|
|
|
- "fcport %p [%x/%02x%02x%02x] given ignored Login "
|
|
|
- "IOCB.\n", ha->host_no, remote_fcport,
|
|
|
- remote_fcport->loop_id,
|
|
|
- remote_fcport->d_id.b.domain,
|
|
|
- remote_fcport->d_id.b.area,
|
|
|
- remote_fcport->d_id.b.al_pa));
|
|
|
-
|
|
|
- list_del(&remote_fcport->list);
|
|
|
- kfree(remote_fcport);
|
|
|
- }
|
|
|
- return (QLA_SUCCESS);
|
|
|
- }
|
|
|
-
|
|
|
- status = le16_to_cpu(mbxstat->status);
|
|
|
- mb[0] = le16_to_cpu(mbxstat->mb0);
|
|
|
- mb[1] = le16_to_cpu(mbxstat->mb1);
|
|
|
- mb[2] = le16_to_cpu(mbxstat->mb2);
|
|
|
- mb[6] = le16_to_cpu(mbxstat->mb6);
|
|
|
- mb[7] = le16_to_cpu(mbxstat->mb7);
|
|
|
-
|
|
|
- /* Good status? */
|
|
|
- if ((status == CS_COMPLETE || status == CS_COMPLETE_CHKCOND) &&
|
|
|
- mb[0] == MBS_COMMAND_COMPLETE) {
|
|
|
-
|
|
|
- DEBUG14(printk("scsi(%ld): Login IOCB -- status=%x mb1=%x pn="
|
|
|
- "%02x%02x%02x%02x%02x%02x%02x%02x.\n", ha->host_no, status,
|
|
|
- mb[1], mbxstat->port_name[0], mbxstat->port_name[1],
|
|
|
- mbxstat->port_name[2], mbxstat->port_name[3],
|
|
|
- mbxstat->port_name[4], mbxstat->port_name[5],
|
|
|
- mbxstat->port_name[6], mbxstat->port_name[7]));
|
|
|
-
|
|
|
- memcpy(remote_fcport->node_name, mbxstat->node_name, WWN_SIZE);
|
|
|
- memcpy(remote_fcport->port_name, mbxstat->port_name, WWN_SIZE);
|
|
|
-
|
|
|
- /* Is the device already in our fcports list? */
|
|
|
- if (remote_fcport->port_type != FCT_RSCN) {
|
|
|
- DEBUG14(printk("scsi(%ld): Login IOCB -- marking "
|
|
|
- "[%x/%02x%02x%02x] online.\n", ha->host_no,
|
|
|
- remote_fcport->loop_id,
|
|
|
- remote_fcport->d_id.b.domain,
|
|
|
- remote_fcport->d_id.b.area,
|
|
|
- remote_fcport->d_id.b.al_pa));
|
|
|
-
|
|
|
- qla2x00_update_login_fcport(ha, mbxstat, remote_fcport);
|
|
|
-
|
|
|
- return (QLA_SUCCESS);
|
|
|
- }
|
|
|
-
|
|
|
- /* Does the RSCN portname already exist in our fcports list? */
|
|
|
- exist_fcport = NULL;
|
|
|
- list_for_each_entry(fcport, &ha->fcports, list) {
|
|
|
- if (memcmp(remote_fcport->port_name, fcport->port_name,
|
|
|
- WWN_SIZE) == 0) {
|
|
|
- exist_fcport = fcport;
|
|
|
- break;
|
|
|
- }
|
|
|
- }
|
|
|
- if (exist_fcport != NULL) {
|
|
|
- DEBUG14(printk("scsi(%ld): Login IOCB -- found RSCN "
|
|
|
- "fcport in fcports list [%p].\n", ha->host_no,
|
|
|
- exist_fcport));
|
|
|
-
|
|
|
- /* Abort any ADISC that could have been sent. */
|
|
|
- if (exist_fcport->iodesc_idx_sent != iodesc->idx &&
|
|
|
- exist_fcport->iodesc_idx_sent <
|
|
|
- MAX_IO_DESCRIPTORS &&
|
|
|
- ha->io_descriptors[exist_fcport->iodesc_idx_sent].
|
|
|
- cb_idx == ADISC_PORT_IOCB_CB) {
|
|
|
-
|
|
|
- abort_iodesc = qla2x00_alloc_iodesc(ha);
|
|
|
- if (abort_iodesc) {
|
|
|
- DEBUG14(printk("scsi(%ld): Login IOCB "
|
|
|
- "-- issuing abort to outstanding "
|
|
|
- "Adisc [%x/%02x%02x%02x].\n",
|
|
|
- ha->host_no, remote_fcport->loop_id,
|
|
|
- exist_fcport->d_id.b.domain,
|
|
|
- exist_fcport->d_id.b.area,
|
|
|
- exist_fcport->d_id.b.al_pa));
|
|
|
-
|
|
|
- abort_iodesc->cb_idx = ABORT_IOCB_CB;
|
|
|
- abort_iodesc->d_id.b24 =
|
|
|
- exist_fcport->d_id.b24;
|
|
|
- abort_iodesc->remote_fcport =
|
|
|
- exist_fcport;
|
|
|
- exist_fcport->iodesc_idx_sent =
|
|
|
- abort_iodesc->idx;
|
|
|
- qla2x00_send_abort_iocb(ha,
|
|
|
- abort_iodesc, ha->io_descriptors[
|
|
|
- exist_fcport->iodesc_idx_sent].
|
|
|
- signature, 1);
|
|
|
- } else {
|
|
|
- DEBUG14(printk("scsi(%ld): Login IOCB "
|
|
|
- "-- unable to abort outstanding "
|
|
|
- "Adisc [%x/%02x%02x%02x].\n",
|
|
|
- ha->host_no, remote_fcport->loop_id,
|
|
|
- exist_fcport->d_id.b.domain,
|
|
|
- exist_fcport->d_id.b.area,
|
|
|
- exist_fcport->d_id.b.al_pa));
|
|
|
- }
|
|
|
- }
|
|
|
-
|
|
|
- /*
|
|
|
- * If the existing fcport is waiting to send an ADISC
|
|
|
- * or LOGIN, then reuse remote fcport (RSCN) to
|
|
|
- * continue waiting.
|
|
|
- */
|
|
|
- reuse = 0;
|
|
|
- remote_loopid = remote_fcport->loop_id;
|
|
|
- remote_did.b24 = remote_fcport->d_id.b24;
|
|
|
- if (exist_fcport->iodesc_idx_sent ==
|
|
|
- IODESC_ADISC_NEEDED ||
|
|
|
- exist_fcport->iodesc_idx_sent ==
|
|
|
- IODESC_LOGIN_NEEDED) {
|
|
|
- DEBUG14(printk("scsi(%ld): Login IOCB -- "
|
|
|
- "existing fcport [%x/%02x%02x%02x] "
|
|
|
- "waiting for IO descriptor, reuse RSCN "
|
|
|
- "fcport.\n", ha->host_no,
|
|
|
- exist_fcport->loop_id,
|
|
|
- exist_fcport->d_id.b.domain,
|
|
|
- exist_fcport->d_id.b.area,
|
|
|
- exist_fcport->d_id.b.al_pa));
|
|
|
-
|
|
|
- reuse++;
|
|
|
- remote_fcport->iodesc_idx_sent =
|
|
|
- exist_fcport->iodesc_idx_sent;
|
|
|
- exist_fcport->iodesc_idx_sent =
|
|
|
- IODESC_INVALID_INDEX;
|
|
|
- remote_fcport->loop_id = exist_fcport->loop_id;
|
|
|
- remote_fcport->d_id.b24 =
|
|
|
- exist_fcport->d_id.b24;
|
|
|
- }
|
|
|
-
|
|
|
- /* Logout the old loopid. */
|
|
|
- if (!reuse &&
|
|
|
- exist_fcport->loop_id != remote_fcport->loop_id &&
|
|
|
- exist_fcport->loop_id != FC_NO_LOOP_ID) {
|
|
|
- login_iodesc = qla2x00_alloc_iodesc(ha);
|
|
|
- if (login_iodesc) {
|
|
|
- DEBUG14(printk("scsi(%ld): Login IOCB "
|
|
|
- "-- issuing logout to free old "
|
|
|
- "loop id [%x/%02x%02x%02x].\n",
|
|
|
- ha->host_no, exist_fcport->loop_id,
|
|
|
- exist_fcport->d_id.b.domain,
|
|
|
- exist_fcport->d_id.b.area,
|
|
|
- exist_fcport->d_id.b.al_pa));
|
|
|
-
|
|
|
- login_iodesc->cb_idx =
|
|
|
- LOGOUT_PORT_IOCB_CB;
|
|
|
- login_iodesc->d_id.b24 =
|
|
|
- exist_fcport->d_id.b24;
|
|
|
- login_iodesc->remote_fcport =
|
|
|
- exist_fcport;
|
|
|
- exist_fcport->iodesc_idx_sent =
|
|
|
- login_iodesc->idx;
|
|
|
- qla2x00_send_logout_iocb(ha,
|
|
|
- login_iodesc, 1);
|
|
|
- } else {
|
|
|
- /* Ran out of IO descriptiors. */
|
|
|
- DEBUG14(printk("scsi(%ld): Login IOCB "
|
|
|
- "-- unable to logout to free old "
|
|
|
- "loop id [%x/%02x%02x%02x].\n",
|
|
|
- ha->host_no, exist_fcport->loop_id,
|
|
|
- exist_fcport->d_id.b.domain,
|
|
|
- exist_fcport->d_id.b.area,
|
|
|
- exist_fcport->d_id.b.al_pa));
|
|
|
-
|
|
|
- exist_fcport->iodesc_idx_sent =
|
|
|
- IODESC_INVALID_INDEX;
|
|
|
- }
|
|
|
-
|
|
|
- }
|
|
|
-
|
|
|
- /* Update existing fcport with remote fcport info. */
|
|
|
- DEBUG14(printk("scsi(%ld): Login IOCB -- marking "
|
|
|
- "existing fcport [%x/%02x%02x%02x] online.\n",
|
|
|
- ha->host_no, remote_loopid, remote_did.b.domain,
|
|
|
- remote_did.b.area, remote_did.b.al_pa));
|
|
|
-
|
|
|
- memcpy(exist_fcport->node_name,
|
|
|
- remote_fcport->node_name, WWN_SIZE);
|
|
|
- exist_fcport->loop_id = remote_loopid;
|
|
|
- exist_fcport->d_id.b24 = remote_did.b24;
|
|
|
- qla2x00_update_login_fcport(ha, mbxstat, exist_fcport);
|
|
|
-
|
|
|
- /* Finally, free the remote (RSCN) fcport. */
|
|
|
- if (!reuse) {
|
|
|
- DEBUG14(printk("scsi(%ld): Login IOCB -- "
|
|
|
- "Freeing RSCN fcport %p "
|
|
|
- "[%x/%02x%02x%02x].\n", ha->host_no,
|
|
|
- remote_fcport, remote_fcport->loop_id,
|
|
|
- remote_fcport->d_id.b.domain,
|
|
|
- remote_fcport->d_id.b.area,
|
|
|
- remote_fcport->d_id.b.al_pa));
|
|
|
-
|
|
|
- list_del(&remote_fcport->list);
|
|
|
- kfree(remote_fcport);
|
|
|
- }
|
|
|
-
|
|
|
- return (QLA_SUCCESS);
|
|
|
- }
|
|
|
-
|
|
|
- /*
|
|
|
- * A new device has been added, move the RSCN fcport to our
|
|
|
- * fcports list.
|
|
|
- */
|
|
|
- DEBUG14(printk("scsi(%ld): Login IOCB -- adding RSCN fcport "
|
|
|
- "[%x/%02x%02x%02x] to fcports list.\n", ha->host_no,
|
|
|
- remote_fcport->loop_id, remote_fcport->d_id.b.domain,
|
|
|
- remote_fcport->d_id.b.area, remote_fcport->d_id.b.al_pa));
|
|
|
-
|
|
|
- list_del(&remote_fcport->list);
|
|
|
- remote_fcport->flags = (FCF_RLC_SUPPORT | FCF_RESCAN_NEEDED);
|
|
|
- qla2x00_update_login_fcport(ha, mbxstat, remote_fcport);
|
|
|
- list_add_tail(&remote_fcport->list, &ha->fcports);
|
|
|
- set_bit(FCPORT_RESCAN_NEEDED, &ha->dpc_flags);
|
|
|
- } else {
|
|
|
- /* Handle login failure. */
|
|
|
- if (remote_fcport->login_retry != 0) {
|
|
|
- if (mb[0] == MBS_LOOP_ID_USED) {
|
|
|
- inuse_did.b.domain = LSB(mb[1]);
|
|
|
- inuse_did.b.area = MSB(mb[2]);
|
|
|
- inuse_did.b.al_pa = LSB(mb[2]);
|
|
|
-
|
|
|
- DEBUG14(printk("scsi(%ld): Login IOCB -- loop "
|
|
|
- "id [%x] used by port id [%02x%02x%02x].\n",
|
|
|
- ha->host_no, remote_fcport->loop_id,
|
|
|
- inuse_did.b.domain, inuse_did.b.area,
|
|
|
- inuse_did.b.al_pa));
|
|
|
-
|
|
|
- if (remote_fcport->d_id.b24 ==
|
|
|
- INVALID_PORT_ID) {
|
|
|
- /*
|
|
|
- * Invalid port id means we are trying
|
|
|
- * to login to a remote port with just
|
|
|
- * a loop id without knowing about the
|
|
|
- * port id. Copy the port id and try
|
|
|
- * again.
|
|
|
- */
|
|
|
- remote_fcport->d_id.b24 = inuse_did.b24;
|
|
|
- iodesc->d_id.b24 = inuse_did.b24;
|
|
|
- } else {
|
|
|
- remote_fcport->loop_id++;
|
|
|
- rval = qla2x00_find_new_loop_id(ha,
|
|
|
- remote_fcport);
|
|
|
- if (rval == QLA_FUNCTION_FAILED) {
|
|
|
- /* No more loop ids. */
|
|
|
- return (QLA_SUCCESS);
|
|
|
- }
|
|
|
- }
|
|
|
- } else if (mb[0] == MBS_PORT_ID_USED) {
|
|
|
- /*
|
|
|
- * Device has another loop ID. The firmware
|
|
|
- * group recommends the driver perform an
|
|
|
- * implicit login with the specified ID.
|
|
|
- */
|
|
|
- DEBUG14(printk("scsi(%ld): Login IOCB -- port "
|
|
|
- "id [%02x%02x%02x] already assigned to "
|
|
|
- "loop id [%x].\n", ha->host_no,
|
|
|
- iodesc->d_id.b.domain, iodesc->d_id.b.area,
|
|
|
- iodesc->d_id.b.al_pa, mb[1]));
|
|
|
-
|
|
|
- remote_fcport->loop_id = mb[1];
|
|
|
-
|
|
|
- } else {
|
|
|
- /* Unable to perform login, try again. */
|
|
|
- DEBUG14(printk("scsi(%ld): Login IOCB -- "
|
|
|
- "failed login [%x/%02x%02x%02x], status=%x "
|
|
|
- "mb0=%x mb1=%x mb2=%x mb6=%x mb7=%x.\n",
|
|
|
- ha->host_no, remote_fcport->loop_id,
|
|
|
- iodesc->d_id.b.domain, iodesc->d_id.b.area,
|
|
|
- iodesc->d_id.b.al_pa, status, mb[0], mb[1],
|
|
|
- mb[2], mb[6], mb[7]));
|
|
|
- }
|
|
|
-
|
|
|
- /* Reissue Login with the same IO descriptor. */
|
|
|
- iodesc->signature =
|
|
|
- qla2x00_iodesc_to_handle(iodesc);
|
|
|
- iodesc->cb_idx = LOGIN_PORT_IOCB_CB;
|
|
|
- iodesc->d_id.b24 = remote_fcport->d_id.b24;
|
|
|
- remote_fcport->iodesc_idx_sent = iodesc->idx;
|
|
|
- remote_fcport->login_retry--;
|
|
|
-
|
|
|
- DEBUG14(printk("scsi(%ld): Login IOCB -- retrying "
|
|
|
- "login to [%x/%02x%02x%02x] (%d).\n", ha->host_no,
|
|
|
- remote_fcport->loop_id,
|
|
|
- remote_fcport->d_id.b.domain,
|
|
|
- remote_fcport->d_id.b.area,
|
|
|
- remote_fcport->d_id.b.al_pa,
|
|
|
- remote_fcport->login_retry));
|
|
|
-
|
|
|
- qla2x00_send_login_iocb(ha, iodesc,
|
|
|
- &remote_fcport->d_id, 1);
|
|
|
-
|
|
|
- return (QLA_FUNCTION_FAILED);
|
|
|
- } else {
|
|
|
- /* No more logins, mark device dead. */
|
|
|
- DEBUG14(printk("scsi(%ld): Login IOCB -- failed "
|
|
|
- "login [%x/%02x%02x%02x] after retries, status=%x "
|
|
|
- "mb0=%x mb1=%x mb2=%x mb6=%x mb7=%x.\n",
|
|
|
- ha->host_no, remote_fcport->loop_id,
|
|
|
- iodesc->d_id.b.domain, iodesc->d_id.b.area,
|
|
|
- iodesc->d_id.b.al_pa, status, mb[0], mb[1],
|
|
|
- mb[2], mb[6], mb[7]));
|
|
|
-
|
|
|
- atomic_set(&remote_fcport->state, FCS_DEVICE_DEAD);
|
|
|
- if (remote_fcport->port_type == FCT_RSCN) {
|
|
|
- DEBUG14(printk("scsi(%ld): Login IOCB -- "
|
|
|
- "Freeing dead RSCN fcport %p "
|
|
|
- "[%x/%02x%02x%02x].\n", ha->host_no,
|
|
|
- remote_fcport, remote_fcport->loop_id,
|
|
|
- remote_fcport->d_id.b.domain,
|
|
|
- remote_fcport->d_id.b.area,
|
|
|
- remote_fcport->d_id.b.al_pa));
|
|
|
-
|
|
|
- list_del(&remote_fcport->list);
|
|
|
- kfree(remote_fcport);
|
|
|
- }
|
|
|
- }
|
|
|
- }
|
|
|
-
|
|
|
- return (QLA_SUCCESS);
|
|
|
-}
|
|
|
-
|
|
|
-
|
|
|
-/**
|
|
|
- * IO descriptor processing routines.
|
|
|
- **/
|
|
|
-
|
|
|
-/**
|
|
|
- * qla2x00_alloc_rscn_fcport() - Allocate an RSCN type fcport.
|
|
|
- * @ha: HA context
|
|
|
- * @flags: allocation flags
|
|
|
- *
|
|
|
- * Returns a pointer to the allocated RSCN fcport, or NULL, if none available.
|
|
|
- */
|
|
|
-fc_port_t *
|
|
|
-qla2x00_alloc_rscn_fcport(scsi_qla_host_t *ha, gfp_t flags)
|
|
|
-{
|
|
|
- fc_port_t *fcport;
|
|
|
-
|
|
|
- fcport = qla2x00_alloc_fcport(ha, flags);
|
|
|
- if (fcport == NULL)
|
|
|
- return (fcport);
|
|
|
-
|
|
|
- /* Setup RSCN fcport structure. */
|
|
|
- fcport->port_type = FCT_RSCN;
|
|
|
-
|
|
|
- return (fcport);
|
|
|
-}
|
|
|
-
|
|
|
-/**
|
|
|
- * qla2x00_handle_port_rscn() - Handle port RSCN.
|
|
|
- * @ha: HA context
|
|
|
- * @rscn_entry: RSCN entry
|
|
|
- * @fcport: fcport entry to updated
|
|
|
- *
|
|
|
- * Returns QLA_SUCCESS if the port RSCN was handled.
|
|
|
- */
|
|
|
-int
|
|
|
-qla2x00_handle_port_rscn(scsi_qla_host_t *ha, uint32_t rscn_entry,
|
|
|
- fc_port_t *known_fcport, int ha_locked)
|
|
|
-{
|
|
|
- int rval;
|
|
|
- port_id_t rscn_pid;
|
|
|
- fc_port_t *fcport, *remote_fcport, *rscn_fcport;
|
|
|
- struct io_descriptor *iodesc;
|
|
|
-
|
|
|
- remote_fcport = NULL;
|
|
|
- rscn_fcport = NULL;
|
|
|
-
|
|
|
- /* Prepare port id based on incoming entries. */
|
|
|
- if (known_fcport) {
|
|
|
- rscn_pid.b24 = known_fcport->d_id.b24;
|
|
|
- remote_fcport = known_fcport;
|
|
|
-
|
|
|
- DEBUG14(printk("scsi(%ld): Handle RSCN -- process RSCN for "
|
|
|
- "fcport [%02x%02x%02x].\n", ha->host_no,
|
|
|
- remote_fcport->d_id.b.domain, remote_fcport->d_id.b.area,
|
|
|
- remote_fcport->d_id.b.al_pa));
|
|
|
- } else {
|
|
|
- rscn_pid.b.domain = LSB(MSW(rscn_entry));
|
|
|
- rscn_pid.b.area = MSB(LSW(rscn_entry));
|
|
|
- rscn_pid.b.al_pa = LSB(LSW(rscn_entry));
|
|
|
-
|
|
|
- DEBUG14(printk("scsi(%ld): Handle RSCN -- process RSCN for "
|
|
|
- "port id [%02x%02x%02x].\n", ha->host_no,
|
|
|
- rscn_pid.b.domain, rscn_pid.b.area, rscn_pid.b.al_pa));
|
|
|
-
|
|
|
- /*
|
|
|
- * Search fcport lists for a known entry at the specified port
|
|
|
- * ID.
|
|
|
- */
|
|
|
- list_for_each_entry(fcport, &ha->fcports, list) {
|
|
|
- if (rscn_pid.b24 == fcport->d_id.b24) {
|
|
|
- remote_fcport = fcport;
|
|
|
- break;
|
|
|
- }
|
|
|
- }
|
|
|
- list_for_each_entry(fcport, &ha->rscn_fcports, list) {
|
|
|
- if (rscn_pid.b24 == fcport->d_id.b24) {
|
|
|
- rscn_fcport = fcport;
|
|
|
- break;
|
|
|
- }
|
|
|
- }
|
|
|
- if (remote_fcport == NULL)
|
|
|
- remote_fcport = rscn_fcport;
|
|
|
- }
|
|
|
-
|
|
|
- /*
|
|
|
- * If the port is already in our fcport list and online, send an ADISC
|
|
|
- * to see if it's still alive. Issue login if a new fcport or the known
|
|
|
- * fcport is currently offline.
|
|
|
- */
|
|
|
- if (remote_fcport) {
|
|
|
- /*
|
|
|
- * No need to send request if the remote fcport is currently
|
|
|
- * waiting for an available io descriptor.
|
|
|
- */
|
|
|
- if (known_fcport == NULL &&
|
|
|
- (remote_fcport->iodesc_idx_sent == IODESC_ADISC_NEEDED ||
|
|
|
- remote_fcport->iodesc_idx_sent == IODESC_LOGIN_NEEDED)) {
|
|
|
- /*
|
|
|
- * If previous waiting io descriptor is an ADISC, then
|
|
|
- * the new RSCN may come from a new remote fcport being
|
|
|
- * plugged into the same location.
|
|
|
- */
|
|
|
- if (remote_fcport->port_type == FCT_RSCN) {
|
|
|
- remote_fcport->iodesc_idx_sent =
|
|
|
- IODESC_LOGIN_NEEDED;
|
|
|
- } else if (remote_fcport->iodesc_idx_sent ==
|
|
|
- IODESC_ADISC_NEEDED) {
|
|
|
- fc_port_t *new_fcport;
|
|
|
-
|
|
|
- remote_fcport->iodesc_idx_sent =
|
|
|
- IODESC_INVALID_INDEX;
|
|
|
-
|
|
|
- /* Create new fcport for later login. */
|
|
|
- new_fcport = qla2x00_alloc_rscn_fcport(ha,
|
|
|
- ha_locked ? GFP_ATOMIC: GFP_KERNEL);
|
|
|
- if (new_fcport) {
|
|
|
- DEBUG14(printk("scsi(%ld): Handle RSCN "
|
|
|
- "-- creating RSCN fcport %p for "
|
|
|
- "future login.\n", ha->host_no,
|
|
|
- new_fcport));
|
|
|
-
|
|
|
- new_fcport->d_id.b24 =
|
|
|
- remote_fcport->d_id.b24;
|
|
|
- new_fcport->iodesc_idx_sent =
|
|
|
- IODESC_LOGIN_NEEDED;
|
|
|
-
|
|
|
- list_add_tail(&new_fcport->list,
|
|
|
- &ha->rscn_fcports);
|
|
|
- set_bit(IODESC_PROCESS_NEEDED,
|
|
|
- &ha->dpc_flags);
|
|
|
- } else {
|
|
|
- DEBUG14(printk("scsi(%ld): Handle RSCN "
|
|
|
- "-- unable to allocate RSCN fcport "
|
|
|
- "for future login.\n",
|
|
|
- ha->host_no));
|
|
|
- }
|
|
|
- }
|
|
|
- return (QLA_SUCCESS);
|
|
|
- }
|
|
|
-
|
|
|
- /* Send ADISC if the fcport is online */
|
|
|
- if (atomic_read(&remote_fcport->state) == FCS_ONLINE ||
|
|
|
- remote_fcport->iodesc_idx_sent == IODESC_ADISC_NEEDED) {
|
|
|
-
|
|
|
- atomic_set(&remote_fcport->state, FCS_DEVICE_LOST);
|
|
|
-
|
|
|
- iodesc = qla2x00_alloc_iodesc(ha);
|
|
|
- if (iodesc == NULL) {
|
|
|
- /* Mark fcport for later adisc processing */
|
|
|
- DEBUG14(printk("scsi(%ld): Handle RSCN -- not "
|
|
|
- "enough IO descriptors for Adisc, flag "
|
|
|
- "for later processing.\n", ha->host_no));
|
|
|
-
|
|
|
- remote_fcport->iodesc_idx_sent =
|
|
|
- IODESC_ADISC_NEEDED;
|
|
|
- set_bit(IODESC_PROCESS_NEEDED, &ha->dpc_flags);
|
|
|
-
|
|
|
- return (QLA_SUCCESS);
|
|
|
- }
|
|
|
-
|
|
|
- iodesc->cb_idx = ADISC_PORT_IOCB_CB;
|
|
|
- iodesc->d_id.b24 = rscn_pid.b24;
|
|
|
- iodesc->remote_fcport = remote_fcport;
|
|
|
- remote_fcport->iodesc_idx_sent = iodesc->idx;
|
|
|
- qla2x00_send_adisc_iocb(ha, iodesc, ha_locked);
|
|
|
-
|
|
|
- return (QLA_SUCCESS);
|
|
|
- } else if (remote_fcport->iodesc_idx_sent <
|
|
|
- MAX_IO_DESCRIPTORS &&
|
|
|
- ha->io_descriptors[remote_fcport->iodesc_idx_sent].cb_idx ==
|
|
|
- ADISC_PORT_IOCB_CB) {
|
|
|
- /*
|
|
|
- * Receiving another RSCN while an ADISC is pending,
|
|
|
- * abort the IOCB. Use the same descriptor for the
|
|
|
- * abort.
|
|
|
- */
|
|
|
- uint32_t handle_to_abort;
|
|
|
-
|
|
|
- iodesc = &ha->io_descriptors[
|
|
|
- remote_fcport->iodesc_idx_sent];
|
|
|
- qla2x00_remove_iodesc_timer(iodesc);
|
|
|
- handle_to_abort = iodesc->signature;
|
|
|
- iodesc->signature = qla2x00_iodesc_to_handle(iodesc);
|
|
|
- iodesc->cb_idx = ABORT_IOCB_CB;
|
|
|
- iodesc->d_id.b24 = remote_fcport->d_id.b24;
|
|
|
- iodesc->remote_fcport = remote_fcport;
|
|
|
- remote_fcport->iodesc_idx_sent = iodesc->idx;
|
|
|
-
|
|
|
- DEBUG14(printk("scsi(%ld): Handle RSCN -- issuing "
|
|
|
- "abort to outstanding Adisc [%x/%02x%02x%02x].\n",
|
|
|
- ha->host_no, remote_fcport->loop_id,
|
|
|
- iodesc->d_id.b.domain, iodesc->d_id.b.area,
|
|
|
- iodesc->d_id.b.al_pa));
|
|
|
-
|
|
|
- qla2x00_send_abort_iocb(ha, iodesc, handle_to_abort,
|
|
|
- ha_locked);
|
|
|
- }
|
|
|
- }
|
|
|
-
|
|
|
- /* We need to login to the remote port, find it. */
|
|
|
- if (known_fcport) {
|
|
|
- remote_fcport = known_fcport;
|
|
|
- } else if (rscn_fcport && rscn_fcport->d_id.b24 != INVALID_PORT_ID &&
|
|
|
- rscn_fcport->iodesc_idx_sent < MAX_IO_DESCRIPTORS &&
|
|
|
- ha->io_descriptors[rscn_fcport->iodesc_idx_sent].cb_idx ==
|
|
|
- LOGIN_PORT_IOCB_CB) {
|
|
|
- /*
|
|
|
- * Ignore duplicate RSCN on fcport which has already
|
|
|
- * initiated a login IOCB.
|
|
|
- */
|
|
|
- DEBUG14(printk("scsi(%ld): Handle RSCN -- ignoring, login "
|
|
|
- "already sent to [%02x%02x%02x].\n", ha->host_no,
|
|
|
- rscn_fcport->d_id.b.domain, rscn_fcport->d_id.b.area,
|
|
|
- rscn_fcport->d_id.b.al_pa));
|
|
|
-
|
|
|
- return (QLA_SUCCESS);
|
|
|
- } else if (rscn_fcport && rscn_fcport->d_id.b24 != INVALID_PORT_ID &&
|
|
|
- rscn_fcport != remote_fcport) {
|
|
|
- /* Reuse same rscn fcport. */
|
|
|
- DEBUG14(printk("scsi(%ld): Handle RSCN -- reusing RSCN fcport "
|
|
|
- "[%02x%02x%02x].\n", ha->host_no,
|
|
|
- rscn_fcport->d_id.b.domain, rscn_fcport->d_id.b.area,
|
|
|
- rscn_fcport->d_id.b.al_pa));
|
|
|
-
|
|
|
- remote_fcport = rscn_fcport;
|
|
|
- } else {
|
|
|
- /* Create new fcport for later login. */
|
|
|
- remote_fcport = qla2x00_alloc_rscn_fcport(ha,
|
|
|
- ha_locked ? GFP_ATOMIC: GFP_KERNEL);
|
|
|
- list_add_tail(&remote_fcport->list, &ha->rscn_fcports);
|
|
|
- }
|
|
|
- if (remote_fcport == NULL)
|
|
|
- return (QLA_SUCCESS);
|
|
|
-
|
|
|
- /* Prepare fcport for login. */
|
|
|
- atomic_set(&remote_fcport->state, FCS_DEVICE_LOST);
|
|
|
- remote_fcport->login_retry = 3; /* ha->login_retry_count; */
|
|
|
- remote_fcport->d_id.b24 = rscn_pid.b24;
|
|
|
-
|
|
|
- iodesc = qla2x00_alloc_iodesc(ha);
|
|
|
- if (iodesc == NULL) {
|
|
|
- /* Mark fcport for later adisc processing. */
|
|
|
- DEBUG14(printk("scsi(%ld): Handle RSCN -- not enough IO "
|
|
|
- "descriptors for Login, flag for later processing.\n",
|
|
|
- ha->host_no));
|
|
|
-
|
|
|
- remote_fcport->iodesc_idx_sent = IODESC_LOGIN_NEEDED;
|
|
|
- set_bit(IODESC_PROCESS_NEEDED, &ha->dpc_flags);
|
|
|
-
|
|
|
- return (QLA_SUCCESS);
|
|
|
- }
|
|
|
-
|
|
|
- if (known_fcport == NULL || rscn_pid.b24 != INVALID_PORT_ID) {
|
|
|
- remote_fcport->loop_id = ha->min_external_loopid;
|
|
|
-
|
|
|
- rval = qla2x00_find_new_loop_id(ha, remote_fcport);
|
|
|
- if (rval == QLA_FUNCTION_FAILED) {
|
|
|
- /* No more loop ids, failed. */
|
|
|
- DEBUG14(printk("scsi(%ld): Handle RSCN -- no available "
|
|
|
- "loop id to perform Login, failed.\n",
|
|
|
- ha->host_no));
|
|
|
-
|
|
|
- return (rval);
|
|
|
- }
|
|
|
- }
|
|
|
-
|
|
|
- iodesc->cb_idx = LOGIN_PORT_IOCB_CB;
|
|
|
- iodesc->d_id.b24 = rscn_pid.b24;
|
|
|
- iodesc->remote_fcport = remote_fcport;
|
|
|
- remote_fcport->iodesc_idx_sent = iodesc->idx;
|
|
|
-
|
|
|
- DEBUG14(printk("scsi(%ld): Handle RSCN -- attempting login to "
|
|
|
- "[%x/%02x%02x%02x].\n", ha->host_no, remote_fcport->loop_id,
|
|
|
- iodesc->d_id.b.domain, iodesc->d_id.b.area, iodesc->d_id.b.al_pa));
|
|
|
-
|
|
|
- qla2x00_send_login_iocb(ha, iodesc, &rscn_pid, ha_locked);
|
|
|
-
|
|
|
- return (QLA_SUCCESS);
|
|
|
-}
|
|
|
-
|
|
|
-/**
|
|
|
- * qla2x00_process_iodesc() - Complete IO descriptor processing.
|
|
|
- * @ha: HA context
|
|
|
- * @mbxstat: Mailbox IOCB status
|
|
|
- */
|
|
|
-void
|
|
|
-qla2x00_process_iodesc(scsi_qla_host_t *ha, struct mbx_entry *mbxstat)
|
|
|
-{
|
|
|
- int rval;
|
|
|
- uint32_t signature;
|
|
|
- fc_port_t *fcport;
|
|
|
- struct io_descriptor *iodesc;
|
|
|
-
|
|
|
- signature = mbxstat->handle;
|
|
|
-
|
|
|
- DEBUG14(printk("scsi(%ld): Process IODesc -- processing %08x.\n",
|
|
|
- ha->host_no, signature));
|
|
|
-
|
|
|
- /* Retrieve proper IO descriptor. */
|
|
|
- iodesc = qla2x00_handle_to_iodesc(ha, signature);
|
|
|
- if (iodesc == NULL) {
|
|
|
- DEBUG14(printk("scsi(%ld): Process IODesc -- ignoring, "
|
|
|
- "incorrect signature %08x.\n", ha->host_no, signature));
|
|
|
-
|
|
|
- return;
|
|
|
- }
|
|
|
-
|
|
|
- /* Stop IO descriptor timer. */
|
|
|
- qla2x00_remove_iodesc_timer(iodesc);
|
|
|
-
|
|
|
- /* Verify signature match. */
|
|
|
- if (iodesc->signature != signature) {
|
|
|
- DEBUG14(printk("scsi(%ld): Process IODesc -- ignoring, "
|
|
|
- "signature mismatch, sent %08x, received %08x.\n",
|
|
|
- ha->host_no, iodesc->signature, signature));
|
|
|
-
|
|
|
- return;
|
|
|
- }
|
|
|
-
|
|
|
- /* Go with IOCB callback. */
|
|
|
- rval = iocb_function_cb_list[iodesc->cb_idx](ha, iodesc, mbxstat);
|
|
|
- if (rval != QLA_SUCCESS) {
|
|
|
- /* IO descriptor reused by callback. */
|
|
|
- return;
|
|
|
- }
|
|
|
-
|
|
|
- qla2x00_free_iodesc(iodesc);
|
|
|
-
|
|
|
- if (test_bit(IODESC_PROCESS_NEEDED, &ha->dpc_flags)) {
|
|
|
- /* Scan our fcports list for any RSCN requests. */
|
|
|
- list_for_each_entry(fcport, &ha->fcports, list) {
|
|
|
- if (fcport->iodesc_idx_sent == IODESC_ADISC_NEEDED ||
|
|
|
- fcport->iodesc_idx_sent == IODESC_LOGIN_NEEDED) {
|
|
|
- qla2x00_handle_port_rscn(ha, 0, fcport, 1);
|
|
|
- return;
|
|
|
- }
|
|
|
- }
|
|
|
-
|
|
|
- /* Scan our RSCN fcports list for any RSCN requests. */
|
|
|
- list_for_each_entry(fcport, &ha->rscn_fcports, list) {
|
|
|
- if (fcport->iodesc_idx_sent == IODESC_ADISC_NEEDED ||
|
|
|
- fcport->iodesc_idx_sent == IODESC_LOGIN_NEEDED) {
|
|
|
- qla2x00_handle_port_rscn(ha, 0, fcport, 1);
|
|
|
- return;
|
|
|
- }
|
|
|
- }
|
|
|
- }
|
|
|
- clear_bit(IODESC_PROCESS_NEEDED, &ha->dpc_flags);
|
|
|
-}
|
|
|
-
|
|
|
-/**
|
|
|
- * qla2x00_cancel_io_descriptors() - Cancel all outstanding io descriptors.
|
|
|
- * @ha: HA context
|
|
|
- *
|
|
|
- * This routine will also delete any RSCN entries related to the outstanding
|
|
|
- * IO descriptors.
|
|
|
- */
|
|
|
-void
|
|
|
-qla2x00_cancel_io_descriptors(scsi_qla_host_t *ha)
|
|
|
-{
|
|
|
- fc_port_t *fcport, *fcptemp;
|
|
|
-
|
|
|
- clear_bit(IODESC_PROCESS_NEEDED, &ha->dpc_flags);
|
|
|
-
|
|
|
- /* Abort all IO descriptors. */
|
|
|
- qla2x00_init_io_descriptors(ha);
|
|
|
-
|
|
|
- /* Reset all pending IO descriptors in fcports list. */
|
|
|
- list_for_each_entry(fcport, &ha->fcports, list) {
|
|
|
- fcport->iodesc_idx_sent = IODESC_INVALID_INDEX;
|
|
|
- }
|
|
|
-
|
|
|
- /* Reset all pending IO descriptors in rscn fcports list. */
|
|
|
- list_for_each_entry_safe(fcport, fcptemp, &ha->rscn_fcports, list) {
|
|
|
- DEBUG14(printk("scsi(%ld): Cancel IOs -- Freeing RSCN fcport "
|
|
|
- "%p [%x/%02x%02x%02x].\n", ha->host_no, fcport,
|
|
|
- fcport->loop_id, fcport->d_id.b.domain, fcport->d_id.b.area,
|
|
|
- fcport->d_id.b.al_pa));
|
|
|
-
|
|
|
- list_del(&fcport->list);
|
|
|
- kfree(fcport);
|
|
|
- }
|
|
|
-}
|
Andrew Vasquez