scsi_destroy_pkt(9F) Kernel Functions for Drivers scsi_destroy_pkt(9F)NAME
scsi_destroy_pkt - free an allocated SCSI packet and its DMA resource
SYNOPSIS
#include <sys/scsi/scsi.h>
void scsi_destroy_pkt(struct scsi_pkt *pktp);
INTERFACE LEVEL
Solaris DDI specific (Solaris DDI).
PARAMETERS
pktp Pointer to a scsi_pkt(9S) structure.
DESCRIPTION
scsi_destroy_pkt() releases all necessary resources, typically at the end of an I/O transfer. The data is synchronized to memory, then the
DMA resources are deallocated and pktp is freed.
CONTEXT
scsi_destroy_pkt() may be called from user or interrupt context.
EXAMPLES
Example 1: Releasing resources.
scsi_destroy_pkt(un->un_rqs);
SEE ALSO tran_destroy_pkt(9E), scsi_init_pkt(9F), scsi_pkt(9S)
Writing Device Drivers
SunOS 5.10 30 Aug 1995 scsi_destroy_pkt(9F)
Check Out this Related Man Page
scsi_sync_pkt(9F) Kernel Functions for Drivers scsi_sync_pkt(9F)NAME
scsi_sync_pkt - synchronize CPU and I/O views of memory
SYNOPSIS
#include <sys/scsi/scsi.h>
void scsi_sync_pkt(struct scsi_pkt *pktp);
INTERFACE LEVEL
Solaris DDI specific (Solaris DDI).
PARAMETERS
pktp Pointer to a scsi_pkt(9S) structure.
DESCRIPTION
scsi_sync_pkt() is used to selectively synchronize a CPU's or device's view of the data associated with the SCSI packet that has been
mapped for I/O. This may involve operations such as flushes of CPU or I/O caches, as well as other more complex operations such as stalling
until hardware write buffers have drained.
This function need only be called under certain circumstances. When a SCSI packet is mapped for I/O using scsi_init_pkt(9F) and destroyed
using scsi_destroy_pkt(9F), then an implicit scsi_sync_pkt() will be performed. However, if the memory object has been modified by either
the device or a CPU after the mapping by scsi_init_pkt(9F), then a call to scsi_sync_pkt() is required.
If the same scsi_pkt is reused for a data transfer from memory to a device, then scsi_sync_pkt() must be called before calling scsi_trans-
port(9F). If the same packet is reused for a data transfer from a device to memory scsi_sync_pkt() must be called after the completion of
the packet but before accessing the data in memory.
CONTEXT
scsi_sync_pkt() may be called from user or interrupt context.
SEE ALSO tran_sync_pkt(9E), ddi_dma_sync(9F), scsi_destroy_pkt(9F), scsi_init_pkt(9F), scsi_transport(9F), scsi_pkt(9S)
Writing Device Drivers
SunOS 5.10 25 Feb 1994 scsi_sync_pkt(9F)
RULES OF THE UNIX AND LINUX FORUMS
For the latest version of the community rules (the official community rules page), please visit here.
No flames, shouting (all caps), sarcasm, bullying, profanity or arrogant posts.
No negative comments about others or impolite remarks. Be patient. No... (1 Reply)
I see lot of ad-hoc shell scripts in our servers which don't have a shebang at the beginning .
Does this mean that it will run on any shell ?
Is it a good practice to create scripts (even ad-hoc ones) without shebang ? (16 Replies)
Hi everyone,
I know the following questions are noobish questions but I am asking them because I am confused about the basics of history behind UNIX and LINUX.
Ok onto business, my questions are-:
Was/Is UNIX ever an open source operating system ?
If UNIX was... (21 Replies)
Dear all,
I use awk quite a bit for data wrangling ... today I find weird behavior that I cannot wrap my head around.
if I execute the following command (simplified to illustrate the behavior ... nothing to do with the real command)
bash-3.2$ awk... (3 Replies)
I have a file hello.txt which i wish to send as a email body (not attachment).
cat -ev hello.txt
1$
2$
3$
I use the following command to send the hello.txt as the email body.
mailx -s "Alert" myteam@mycomp.com<hello.txt
However, the email received has this in the email body
123... (2 Replies)
I've "installed" LM 19.1 to a PNY 16Gb(2.0) pendrive. I have a few issues that I'd like to resolve. First and foremost, the O.S. experiences "lagging" issues and to a lesser degree, freezing. Example: Complete "boot-up" (from start to complete "home" page) can take upwards of 7 mins. Then when... (10 Replies)
Morning All
So, I am starting looking into the world of UNIX for a new job (luckily not my primary function!) and I am looking to get stared. Like anything I seem to learn best by trying things out first in an environment but I have a key question:
Currently I use Oracle VirtualBox, can... (8 Replies)
I've installed Slack 14.2 on /dev/sda1 (/dev/sda2 is swap) and FreeBSD 12 on /dev/sda3 and lilo is the boot manager.
FreeBSD slices are as follows;
/ on /dev/ada0S3a, swap on /dev/ada0s3e, /var on /dev/ada0s3b, /tmp on /dev/ada0s3d and /usr on /dev/ada0s3f.
I hesitate to install Solaris 10... (2 Replies)
In a professional environment with traditional application you often want (or are asked) to report the users.
Traditionally there is the who command
who | awk '{print $1}'telnetd or sshd register the users in the utmp file, to be shown with who, w, users, finger, pinky, ...
In addition they... (1 Reply)