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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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3269619874
Tack the firmware reply event_data payload to the end of its
corresponding struct fw_event_work allocation. Rework fw_event_work
allocation calculations to include the event_data size where
appropriate.
This clarifies the code a bit and avoids the following smatch warnings:
drivers/message/fusion/mptsas.c:1003 mptsas_queue_device_delete()
error: memcpy() 'fw_event->event_data' too small (29 vs 36)
drivers/message/fusion/mptsas.c:1017 mptsas_queue_rescan() error: not
allocating enough data 168 vs 160
Signed-off-by: Joe Lawrence <joe.lawrence@stratus.com>
Acked-by: Sreekanth Reddy <Sreekanth.Reddy@avagotech.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
193 lines
6.6 KiB
C
193 lines
6.6 KiB
C
/*
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* linux/drivers/message/fusion/mptsas.h
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* High performance SCSI + LAN / Fibre Channel device drivers.
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* For use with PCI chip/adapter(s):
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* LSIFC9xx/LSI409xx Fibre Channel
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* running LSI MPT (Message Passing Technology) firmware.
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*
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* Copyright (c) 1999-2008 LSI Corporation
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* (mailto:DL-MPTFusionLinux@lsi.com)
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*
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*/
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/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
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/*
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; version 2 of the License.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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NO WARRANTY
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THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
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CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
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LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
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MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
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solely responsible for determining the appropriateness of using and
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distributing the Program and assumes all risks associated with its
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exercise of rights under this Agreement, including but not limited to
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the risks and costs of program errors, damage to or loss of data,
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programs or equipment, and unavailability or interruption of operations.
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DISCLAIMER OF LIABILITY
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NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
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DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
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ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
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TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
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USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
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HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#ifndef MPTSAS_H_INCLUDED
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#define MPTSAS_H_INCLUDED
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/*{-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
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struct mptsas_target_reset_event {
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struct list_head list;
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EVENT_DATA_SAS_DEVICE_STATUS_CHANGE sas_event_data;
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u8 target_reset_issued;
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unsigned long time_count;
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};
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enum mptsas_hotplug_action {
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MPTSAS_ADD_DEVICE,
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MPTSAS_DEL_DEVICE,
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MPTSAS_ADD_RAID,
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MPTSAS_DEL_RAID,
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MPTSAS_ADD_PHYSDISK,
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MPTSAS_ADD_PHYSDISK_REPROBE,
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MPTSAS_DEL_PHYSDISK,
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MPTSAS_DEL_PHYSDISK_REPROBE,
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MPTSAS_ADD_INACTIVE_VOLUME,
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MPTSAS_IGNORE_EVENT,
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};
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struct mptsas_mapping{
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u8 id;
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u8 channel;
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};
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struct mptsas_device_info {
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struct list_head list;
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struct mptsas_mapping os; /* operating system mapping*/
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struct mptsas_mapping fw; /* firmware mapping */
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u64 sas_address;
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u32 device_info; /* specific bits for devices */
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u16 slot; /* enclosure slot id */
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u64 enclosure_logical_id; /*enclosure address */
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u8 is_logical_volume; /* is this logical volume */
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/* this belongs to volume */
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u8 is_hidden_raid_component;
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/* this valid when is_hidden_raid_component set */
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u8 volume_id;
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/* cached data for a removed device */
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u8 is_cached;
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};
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struct mptsas_hotplug_event {
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MPT_ADAPTER *ioc;
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enum mptsas_hotplug_action event_type;
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u64 sas_address;
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u8 channel;
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u8 id;
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u32 device_info;
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u16 handle;
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u8 phy_id;
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u8 phys_disk_num; /* hrc - unique index*/
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struct scsi_device *sdev;
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};
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struct fw_event_work {
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struct list_head list;
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struct delayed_work work;
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MPT_ADAPTER *ioc;
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u32 event;
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u8 retries;
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char event_data[0] __aligned(4);
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};
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struct mptsas_discovery_event {
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struct work_struct work;
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MPT_ADAPTER *ioc;
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};
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/*
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* SAS topology structures
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*
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* The MPT Fusion firmware interface spreads information about the
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* SAS topology over many manufacture pages, thus we need some data
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* structure to collect it and process it for the SAS transport class.
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*/
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struct mptsas_devinfo {
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u16 handle; /* unique id to address this device */
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u16 handle_parent; /* unique id to address parent device */
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u16 handle_enclosure; /* enclosure identifier of the enclosure */
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u16 slot; /* physical slot in enclosure */
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u8 phy_id; /* phy number of parent device */
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u8 port_id; /* sas physical port this device
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is assoc'd with */
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u8 id; /* logical target id of this device */
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u32 phys_disk_num; /* phys disk id, for csmi-ioctls */
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u8 channel; /* logical bus number of this device */
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u64 sas_address; /* WWN of this device,
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SATA is assigned by HBA,expander */
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u32 device_info; /* bitfield detailed info about this device */
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u16 flags; /* sas device pg0 flags */
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};
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/*
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* Specific details on ports, wide/narrow
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*/
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struct mptsas_portinfo_details{
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u16 num_phys; /* number of phys belong to this port */
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u64 phy_bitmask; /* TODO, extend support for 255 phys */
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struct sas_rphy *rphy; /* transport layer rphy object */
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struct sas_port *port; /* transport layer port object */
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struct scsi_target *starget;
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struct mptsas_portinfo *port_info;
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};
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struct mptsas_phyinfo {
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u16 handle; /* unique id to address this */
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u8 phy_id; /* phy index */
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u8 port_id; /* firmware port identifier */
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u8 negotiated_link_rate; /* nego'd link rate for this phy */
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u8 hw_link_rate; /* hardware max/min phys link rate */
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u8 programmed_link_rate; /* programmed max/min phy link rate */
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u8 sas_port_add_phy; /* flag to request sas_port_add_phy*/
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struct mptsas_devinfo identify; /* point to phy device info */
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struct mptsas_devinfo attached; /* point to attached device info */
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struct sas_phy *phy; /* transport layer phy object */
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struct mptsas_portinfo *portinfo;
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struct mptsas_portinfo_details * port_details;
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};
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struct mptsas_portinfo {
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struct list_head list;
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u16 num_phys; /* number of phys */
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struct mptsas_phyinfo *phy_info;
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};
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struct mptsas_enclosure {
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u64 enclosure_logical_id; /* The WWN for the enclosure */
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u16 enclosure_handle; /* unique id to address this */
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u16 flags; /* details enclosure management */
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u16 num_slot; /* num slots */
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u16 start_slot; /* first slot */
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u8 start_id; /* starting logical target id */
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u8 start_channel; /* starting logical channel id */
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u8 sep_id; /* SEP device logical target id */
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u8 sep_channel; /* SEP channel logical channel id */
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};
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/*}-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
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#endif
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