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Date: Thu, 15 Aug 2019 03:53:40 +0800
From: kbuild test robot <lkp@...el.com>
To: Mark Balantzyan <mbalant3@...il.com>
Cc: kbuild-all@...org, sathya.prakash@...adcom.com,
suganath-prabu.subramani@...adcom.com,
MPT=FusionLinux.pdl@...adcom.com, linux-scsi@...r.kernel.org,
linux-kernel@...r.kernel.org, Mark Balantzyan <mbalant3@...il.com>
Subject: Re: [PATCH] lsilogic mpt fusion: mptctl: Fixed race condition around
mptctl_id variable using mutexes
Hi Mark,
Thank you for the patch! Perhaps something to improve:
[auto build test WARNING on linus/master]
[cannot apply to v5.3-rc4 next-20190814]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]
url: https://github.com/0day-ci/linux/commits/Mark-Balantzyan/lsilogic-mpt-fusion-mptctl-Fixed-race-condition-around-mptctl_id-variable-using-mutexes/20190815-023617
config: parisc-allmodconfig (attached as .config)
compiler: hppa-linux-gcc (GCC) 7.4.0
reproduce:
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# save the attached .config to linux build tree
GCC_VERSION=7.4.0 make.cross ARCH=parisc
If you fix the issue, kindly add following tag
Reported-by: kbuild test robot <lkp@...el.com>
All warnings (new ones prefixed by >>):
drivers/message/fusion/mptctl.c: In function 'mptctl_do_mpt_command':
>> drivers/message/fusion/mptctl.c:2300:4: warning: this 'else' clause does not guard... [-Wmisleading-indentation]
} else
^~~~
drivers/message/fusion/mptctl.c:2302:3: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'else'
mpt_put_msg_frame(mptctl_id, ioc, mf);
^~~~~~~~~~~~~~~~~
vim +/else +2300 drivers/message/fusion/mptctl.c
^1da177e4c3f41 Linus Torvalds 2005-04-16 1815
^1da177e4c3f41 Linus Torvalds 2005-04-16 1816 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
^1da177e4c3f41 Linus Torvalds 2005-04-16 1817 /* Worker routine for the IOCTL MPTCOMMAND and MPTCOMMAND32 (sparc) commands.
^1da177e4c3f41 Linus Torvalds 2005-04-16 1818 *
^1da177e4c3f41 Linus Torvalds 2005-04-16 1819 * Outputs: None.
^1da177e4c3f41 Linus Torvalds 2005-04-16 1820 * Return: 0 if successful
fc1323bb75ef8a Joe Perches 2008-02-03 1821 * -EBUSY if previous command timeout and IOC reset is not complete.
^1da177e4c3f41 Linus Torvalds 2005-04-16 1822 * -EFAULT if data unavailable
^1da177e4c3f41 Linus Torvalds 2005-04-16 1823 * -ENODEV if no such device/adapter
^1da177e4c3f41 Linus Torvalds 2005-04-16 1824 * -ETIME if timer expires
^1da177e4c3f41 Linus Torvalds 2005-04-16 1825 * -ENOMEM if memory allocation error
^1da177e4c3f41 Linus Torvalds 2005-04-16 1826 * -EPERM if SCSI I/O and target is untagged
^1da177e4c3f41 Linus Torvalds 2005-04-16 1827 */
^1da177e4c3f41 Linus Torvalds 2005-04-16 1828 static int
^1da177e4c3f41 Linus Torvalds 2005-04-16 1829 mptctl_do_mpt_command (struct mpt_ioctl_command karg, void __user *mfPtr)
^1da177e4c3f41 Linus Torvalds 2005-04-16 1830 {
^1da177e4c3f41 Linus Torvalds 2005-04-16 1831 MPT_ADAPTER *ioc;
^1da177e4c3f41 Linus Torvalds 2005-04-16 1832 MPT_FRAME_HDR *mf = NULL;
^1da177e4c3f41 Linus Torvalds 2005-04-16 1833 MPIHeader_t *hdr;
^1da177e4c3f41 Linus Torvalds 2005-04-16 1834 char *psge;
^1da177e4c3f41 Linus Torvalds 2005-04-16 1835 struct buflist bufIn; /* data In buffer */
^1da177e4c3f41 Linus Torvalds 2005-04-16 1836 struct buflist bufOut; /* data Out buffer */
^1da177e4c3f41 Linus Torvalds 2005-04-16 1837 dma_addr_t dma_addr_in;
^1da177e4c3f41 Linus Torvalds 2005-04-16 1838 dma_addr_t dma_addr_out;
^1da177e4c3f41 Linus Torvalds 2005-04-16 1839 int sgSize = 0; /* Num SG elements */
^1da177e4c3f41 Linus Torvalds 2005-04-16 1840 int iocnum, flagsLength;
^1da177e4c3f41 Linus Torvalds 2005-04-16 1841 int sz, rc = 0;
^1da177e4c3f41 Linus Torvalds 2005-04-16 1842 int msgContext;
^1da177e4c3f41 Linus Torvalds 2005-04-16 1843 u16 req_idx;
^1da177e4c3f41 Linus Torvalds 2005-04-16 1844 ulong timeout;
ea2a788de4ce5e Kashyap, Desai 2009-05-29 1845 unsigned long timeleft;
793955f549c710 Eric Moore 2007-01-29 1846 struct scsi_device *sdev;
ea2a788de4ce5e Kashyap, Desai 2009-05-29 1847 unsigned long flags;
ea2a788de4ce5e Kashyap, Desai 2009-05-29 1848 u8 function;
^1da177e4c3f41 Linus Torvalds 2005-04-16 1849
ab37128797148e Eric Moore 2007-09-29 1850 /* bufIn and bufOut are used for user to kernel space transfers
ab37128797148e Eric Moore 2007-09-29 1851 */
^1da177e4c3f41 Linus Torvalds 2005-04-16 1852 bufIn.kptr = bufOut.kptr = NULL;
ab37128797148e Eric Moore 2007-09-29 1853 bufIn.len = bufOut.len = 0;
^1da177e4c3f41 Linus Torvalds 2005-04-16 1854
^1da177e4c3f41 Linus Torvalds 2005-04-16 1855 if (((iocnum = mpt_verify_adapter(karg.hdr.iocnum, &ioc)) < 0) ||
^1da177e4c3f41 Linus Torvalds 2005-04-16 1856 (ioc == NULL)) {
29dd3609f2fc70 Eric Moore 2007-09-14 1857 printk(KERN_DEBUG MYNAM "%s::mptctl_do_mpt_command() @%d - ioc%d not found!\n",
09120a8cd38dbd Prakash, Sathya 2007-07-24 1858 __FILE__, __LINE__, iocnum);
^1da177e4c3f41 Linus Torvalds 2005-04-16 1859 return -ENODEV;
^1da177e4c3f41 Linus Torvalds 2005-04-16 1860 }
ea2a788de4ce5e Kashyap, Desai 2009-05-29 1861
ea2a788de4ce5e Kashyap, Desai 2009-05-29 1862 spin_lock_irqsave(&ioc->taskmgmt_lock, flags);
ea2a788de4ce5e Kashyap, Desai 2009-05-29 1863 if (ioc->ioc_reset_in_progress) {
ea2a788de4ce5e Kashyap, Desai 2009-05-29 1864 spin_unlock_irqrestore(&ioc->taskmgmt_lock, flags);
29dd3609f2fc70 Eric Moore 2007-09-14 1865 printk(KERN_ERR MYNAM "%s@%d::mptctl_do_mpt_command - "
ea2a788de4ce5e Kashyap, Desai 2009-05-29 1866 "Busy with diagnostic reset\n", __FILE__, __LINE__);
^1da177e4c3f41 Linus Torvalds 2005-04-16 1867 return -EBUSY;
^1da177e4c3f41 Linus Torvalds 2005-04-16 1868 }
ea2a788de4ce5e Kashyap, Desai 2009-05-29 1869 spin_unlock_irqrestore(&ioc->taskmgmt_lock, flags);
^1da177e4c3f41 Linus Torvalds 2005-04-16 1870
e819cdb198319c Dan Carpenter 2015-07-03 1871 /* Basic sanity checks to prevent underflows or integer overflows */
e819cdb198319c Dan Carpenter 2015-07-03 1872 if (karg.maxReplyBytes < 0 ||
e819cdb198319c Dan Carpenter 2015-07-03 1873 karg.dataInSize < 0 ||
e819cdb198319c Dan Carpenter 2015-07-03 1874 karg.dataOutSize < 0 ||
e819cdb198319c Dan Carpenter 2015-07-03 1875 karg.dataSgeOffset < 0 ||
e819cdb198319c Dan Carpenter 2015-07-03 1876 karg.maxSenseBytes < 0 ||
e819cdb198319c Dan Carpenter 2015-07-03 1877 karg.dataSgeOffset > ioc->req_sz / 4)
e819cdb198319c Dan Carpenter 2015-07-03 1878 return -EINVAL;
e819cdb198319c Dan Carpenter 2015-07-03 1879
^1da177e4c3f41 Linus Torvalds 2005-04-16 1880 /* Verify that the final request frame will not be too large.
^1da177e4c3f41 Linus Torvalds 2005-04-16 1881 */
^1da177e4c3f41 Linus Torvalds 2005-04-16 1882 sz = karg.dataSgeOffset * 4;
^1da177e4c3f41 Linus Torvalds 2005-04-16 1883 if (karg.dataInSize > 0)
14d0f0b063f536 Kashyap, Desai 2009-05-29 1884 sz += ioc->SGE_size;
^1da177e4c3f41 Linus Torvalds 2005-04-16 1885 if (karg.dataOutSize > 0)
14d0f0b063f536 Kashyap, Desai 2009-05-29 1886 sz += ioc->SGE_size;
^1da177e4c3f41 Linus Torvalds 2005-04-16 1887
^1da177e4c3f41 Linus Torvalds 2005-04-16 1888 if (sz > ioc->req_sz) {
29dd3609f2fc70 Eric Moore 2007-09-14 1889 printk(MYIOC_s_ERR_FMT "%s@%d::mptctl_do_mpt_command - "
^1da177e4c3f41 Linus Torvalds 2005-04-16 1890 "Request frame too large (%d) maximum (%d)\n",
29dd3609f2fc70 Eric Moore 2007-09-14 1891 ioc->name, __FILE__, __LINE__, sz, ioc->req_sz);
^1da177e4c3f41 Linus Torvalds 2005-04-16 1892 return -EFAULT;
^1da177e4c3f41 Linus Torvalds 2005-04-16 1893 }
^1da177e4c3f41 Linus Torvalds 2005-04-16 1894
^1da177e4c3f41 Linus Torvalds 2005-04-16 1895 /* Get a free request frame and save the message context.
^1da177e4c3f41 Linus Torvalds 2005-04-16 1896 */
beda27821fd319 Mark Balantzyan 2019-08-14 1897 mutex_lock(&mpctl_mutex);
^1da177e4c3f41 Linus Torvalds 2005-04-16 1898 if ((mf = mpt_get_msg_frame(mptctl_id, ioc)) == NULL)
beda27821fd319 Mark Balantzyan 2019-08-14 1899 mutex_unlock(&mpctl_mutex);
^1da177e4c3f41 Linus Torvalds 2005-04-16 1900 return -EAGAIN;
^1da177e4c3f41 Linus Torvalds 2005-04-16 1901
^1da177e4c3f41 Linus Torvalds 2005-04-16 1902 hdr = (MPIHeader_t *) mf;
^1da177e4c3f41 Linus Torvalds 2005-04-16 1903 msgContext = le32_to_cpu(hdr->MsgContext);
^1da177e4c3f41 Linus Torvalds 2005-04-16 1904 req_idx = le16_to_cpu(mf->u.frame.hwhdr.msgctxu.fld.req_idx);
^1da177e4c3f41 Linus Torvalds 2005-04-16 1905
^1da177e4c3f41 Linus Torvalds 2005-04-16 1906 /* Copy the request frame
^1da177e4c3f41 Linus Torvalds 2005-04-16 1907 * Reset the saved message context.
^1da177e4c3f41 Linus Torvalds 2005-04-16 1908 * Request frame in user space
^1da177e4c3f41 Linus Torvalds 2005-04-16 1909 */
^1da177e4c3f41 Linus Torvalds 2005-04-16 1910 if (copy_from_user(mf, mfPtr, karg.dataSgeOffset * 4)) {
29dd3609f2fc70 Eric Moore 2007-09-14 1911 printk(MYIOC_s_ERR_FMT "%s@%d::mptctl_do_mpt_command - "
^1da177e4c3f41 Linus Torvalds 2005-04-16 1912 "Unable to read MF from mpt_ioctl_command struct @ %p\n",
29dd3609f2fc70 Eric Moore 2007-09-14 1913 ioc->name, __FILE__, __LINE__, mfPtr);
ea2a788de4ce5e Kashyap, Desai 2009-05-29 1914 function = -1;
^1da177e4c3f41 Linus Torvalds 2005-04-16 1915 rc = -EFAULT;
^1da177e4c3f41 Linus Torvalds 2005-04-16 1916 goto done_free_mem;
^1da177e4c3f41 Linus Torvalds 2005-04-16 1917 }
^1da177e4c3f41 Linus Torvalds 2005-04-16 1918 hdr->MsgContext = cpu_to_le32(msgContext);
ea2a788de4ce5e Kashyap, Desai 2009-05-29 1919 function = hdr->Function;
^1da177e4c3f41 Linus Torvalds 2005-04-16 1920
^1da177e4c3f41 Linus Torvalds 2005-04-16 1921
^1da177e4c3f41 Linus Torvalds 2005-04-16 1922 /* Verify that this request is allowed.
^1da177e4c3f41 Linus Torvalds 2005-04-16 1923 */
09120a8cd38dbd Prakash, Sathya 2007-07-24 1924 dctlprintk(ioc, printk(MYIOC_s_DEBUG_FMT "sending mpi function (0x%02X), req=%p\n",
09120a8cd38dbd Prakash, Sathya 2007-07-24 1925 ioc->name, hdr->Function, mf));
09120a8cd38dbd Prakash, Sathya 2007-07-24 1926
ea2a788de4ce5e Kashyap, Desai 2009-05-29 1927 switch (function) {
^1da177e4c3f41 Linus Torvalds 2005-04-16 1928 case MPI_FUNCTION_IOC_FACTS:
^1da177e4c3f41 Linus Torvalds 2005-04-16 1929 case MPI_FUNCTION_PORT_FACTS:
^1da177e4c3f41 Linus Torvalds 2005-04-16 1930 karg.dataOutSize = karg.dataInSize = 0;
^1da177e4c3f41 Linus Torvalds 2005-04-16 1931 break;
^1da177e4c3f41 Linus Torvalds 2005-04-16 1932
^1da177e4c3f41 Linus Torvalds 2005-04-16 1933 case MPI_FUNCTION_CONFIG:
09120a8cd38dbd Prakash, Sathya 2007-07-24 1934 {
09120a8cd38dbd Prakash, Sathya 2007-07-24 1935 Config_t *config_frame;
09120a8cd38dbd Prakash, Sathya 2007-07-24 1936 config_frame = (Config_t *)mf;
09120a8cd38dbd Prakash, Sathya 2007-07-24 1937 dctlprintk(ioc, printk(MYIOC_s_DEBUG_FMT "\ttype=0x%02x ext_type=0x%02x "
09120a8cd38dbd Prakash, Sathya 2007-07-24 1938 "number=0x%02x action=0x%02x\n", ioc->name,
09120a8cd38dbd Prakash, Sathya 2007-07-24 1939 config_frame->Header.PageType,
09120a8cd38dbd Prakash, Sathya 2007-07-24 1940 config_frame->ExtPageType,
09120a8cd38dbd Prakash, Sathya 2007-07-24 1941 config_frame->Header.PageNumber,
09120a8cd38dbd Prakash, Sathya 2007-07-24 1942 config_frame->Action));
09120a8cd38dbd Prakash, Sathya 2007-07-24 1943 break;
09120a8cd38dbd Prakash, Sathya 2007-07-24 1944 }
09120a8cd38dbd Prakash, Sathya 2007-07-24 1945
^1da177e4c3f41 Linus Torvalds 2005-04-16 1946 case MPI_FUNCTION_FC_COMMON_TRANSPORT_SEND:
^1da177e4c3f41 Linus Torvalds 2005-04-16 1947 case MPI_FUNCTION_FC_EX_LINK_SRVC_SEND:
^1da177e4c3f41 Linus Torvalds 2005-04-16 1948 case MPI_FUNCTION_FW_UPLOAD:
^1da177e4c3f41 Linus Torvalds 2005-04-16 1949 case MPI_FUNCTION_SCSI_ENCLOSURE_PROCESSOR:
^1da177e4c3f41 Linus Torvalds 2005-04-16 1950 case MPI_FUNCTION_FW_DOWNLOAD:
^1da177e4c3f41 Linus Torvalds 2005-04-16 1951 case MPI_FUNCTION_FC_PRIMITIVE_SEND:
096f7a2a094af3 Moore, Eric 2006-02-02 1952 case MPI_FUNCTION_TOOLBOX:
096f7a2a094af3 Moore, Eric 2006-02-02 1953 case MPI_FUNCTION_SAS_IO_UNIT_CONTROL:
^1da177e4c3f41 Linus Torvalds 2005-04-16 1954 break;
^1da177e4c3f41 Linus Torvalds 2005-04-16 1955
^1da177e4c3f41 Linus Torvalds 2005-04-16 1956 case MPI_FUNCTION_SCSI_IO_REQUEST:
^1da177e4c3f41 Linus Torvalds 2005-04-16 1957 if (ioc->sh) {
^1da177e4c3f41 Linus Torvalds 2005-04-16 1958 SCSIIORequest_t *pScsiReq = (SCSIIORequest_t *) mf;
^1da177e4c3f41 Linus Torvalds 2005-04-16 1959 int qtag = MPI_SCSIIO_CONTROL_UNTAGGED;
^1da177e4c3f41 Linus Torvalds 2005-04-16 1960 int scsidir = 0;
^1da177e4c3f41 Linus Torvalds 2005-04-16 1961 int dataSize;
793955f549c710 Eric Moore 2007-01-29 1962 u32 id;
^1da177e4c3f41 Linus Torvalds 2005-04-16 1963
793955f549c710 Eric Moore 2007-01-29 1964 id = (ioc->devices_per_bus == 0) ? 256 : ioc->devices_per_bus;
793955f549c710 Eric Moore 2007-01-29 1965 if (pScsiReq->TargetID > id) {
29dd3609f2fc70 Eric Moore 2007-09-14 1966 printk(MYIOC_s_ERR_FMT "%s@%d::mptctl_do_mpt_command - "
^1da177e4c3f41 Linus Torvalds 2005-04-16 1967 "Target ID out of bounds. \n",
29dd3609f2fc70 Eric Moore 2007-09-14 1968 ioc->name, __FILE__, __LINE__);
^1da177e4c3f41 Linus Torvalds 2005-04-16 1969 rc = -ENODEV;
^1da177e4c3f41 Linus Torvalds 2005-04-16 1970 goto done_free_mem;
^1da177e4c3f41 Linus Torvalds 2005-04-16 1971 }
^1da177e4c3f41 Linus Torvalds 2005-04-16 1972
793955f549c710 Eric Moore 2007-01-29 1973 if (pScsiReq->Bus >= ioc->number_of_buses) {
29dd3609f2fc70 Eric Moore 2007-09-14 1974 printk(MYIOC_s_ERR_FMT "%s@%d::mptctl_do_mpt_command - "
793955f549c710 Eric Moore 2007-01-29 1975 "Target Bus out of bounds. \n",
29dd3609f2fc70 Eric Moore 2007-09-14 1976 ioc->name, __FILE__, __LINE__);
793955f549c710 Eric Moore 2007-01-29 1977 rc = -ENODEV;
793955f549c710 Eric Moore 2007-01-29 1978 goto done_free_mem;
793955f549c710 Eric Moore 2007-01-29 1979 }
793955f549c710 Eric Moore 2007-01-29 1980
5f07e2499d6290 Moore, Eric 2006-02-02 1981 pScsiReq->MsgFlags &= ~MPI_SCSIIO_MSGFLGS_SENSE_WIDTH;
14d0f0b063f536 Kashyap, Desai 2009-05-29 1982 pScsiReq->MsgFlags |= mpt_msg_flags(ioc);
5f07e2499d6290 Moore, Eric 2006-02-02 1983
^1da177e4c3f41 Linus Torvalds 2005-04-16 1984
^1da177e4c3f41 Linus Torvalds 2005-04-16 1985 /* verify that app has not requested
^1da177e4c3f41 Linus Torvalds 2005-04-16 1986 * more sense data than driver
^1da177e4c3f41 Linus Torvalds 2005-04-16 1987 * can provide, if so, reset this parameter
^1da177e4c3f41 Linus Torvalds 2005-04-16 1988 * set the sense buffer pointer low address
^1da177e4c3f41 Linus Torvalds 2005-04-16 1989 * update the control field to specify Q type
^1da177e4c3f41 Linus Torvalds 2005-04-16 1990 */
^1da177e4c3f41 Linus Torvalds 2005-04-16 1991 if (karg.maxSenseBytes > MPT_SENSE_BUFFER_SIZE)
^1da177e4c3f41 Linus Torvalds 2005-04-16 1992 pScsiReq->SenseBufferLength = MPT_SENSE_BUFFER_SIZE;
^1da177e4c3f41 Linus Torvalds 2005-04-16 1993 else
^1da177e4c3f41 Linus Torvalds 2005-04-16 1994 pScsiReq->SenseBufferLength = karg.maxSenseBytes;
^1da177e4c3f41 Linus Torvalds 2005-04-16 1995
^1da177e4c3f41 Linus Torvalds 2005-04-16 1996 pScsiReq->SenseBufferLowAddr =
^1da177e4c3f41 Linus Torvalds 2005-04-16 1997 cpu_to_le32(ioc->sense_buf_low_dma
^1da177e4c3f41 Linus Torvalds 2005-04-16 1998 + (req_idx * MPT_SENSE_BUFFER_ALLOC));
^1da177e4c3f41 Linus Torvalds 2005-04-16 1999
793955f549c710 Eric Moore 2007-01-29 2000 shost_for_each_device(sdev, ioc->sh) {
793955f549c710 Eric Moore 2007-01-29 2001 struct scsi_target *starget = scsi_target(sdev);
793955f549c710 Eric Moore 2007-01-29 2002 VirtTarget *vtarget = starget->hostdata;
^1da177e4c3f41 Linus Torvalds 2005-04-16 2003
08f5c5c23d52aa Kashyap, Desai 2010-03-18 2004 if (vtarget == NULL)
08f5c5c23d52aa Kashyap, Desai 2010-03-18 2005 continue;
08f5c5c23d52aa Kashyap, Desai 2010-03-18 2006
793955f549c710 Eric Moore 2007-01-29 2007 if ((pScsiReq->TargetID == vtarget->id) &&
793955f549c710 Eric Moore 2007-01-29 2008 (pScsiReq->Bus == vtarget->channel) &&
793955f549c710 Eric Moore 2007-01-29 2009 (vtarget->tflags & MPT_TARGET_FLAGS_Q_YES))
^1da177e4c3f41 Linus Torvalds 2005-04-16 2010 qtag = MPI_SCSIIO_CONTROL_SIMPLEQ;
793955f549c710 Eric Moore 2007-01-29 2011 }
^1da177e4c3f41 Linus Torvalds 2005-04-16 2012
^1da177e4c3f41 Linus Torvalds 2005-04-16 2013 /* Have the IOCTL driver set the direction based
^1da177e4c3f41 Linus Torvalds 2005-04-16 2014 * on the dataOutSize (ordering issue with Sparc).
^1da177e4c3f41 Linus Torvalds 2005-04-16 2015 */
^1da177e4c3f41 Linus Torvalds 2005-04-16 2016 if (karg.dataOutSize > 0) {
^1da177e4c3f41 Linus Torvalds 2005-04-16 2017 scsidir = MPI_SCSIIO_CONTROL_WRITE;
^1da177e4c3f41 Linus Torvalds 2005-04-16 2018 dataSize = karg.dataOutSize;
^1da177e4c3f41 Linus Torvalds 2005-04-16 2019 } else {
^1da177e4c3f41 Linus Torvalds 2005-04-16 2020 scsidir = MPI_SCSIIO_CONTROL_READ;
^1da177e4c3f41 Linus Torvalds 2005-04-16 2021 dataSize = karg.dataInSize;
^1da177e4c3f41 Linus Torvalds 2005-04-16 2022 }
^1da177e4c3f41 Linus Torvalds 2005-04-16 2023
^1da177e4c3f41 Linus Torvalds 2005-04-16 2024 pScsiReq->Control = cpu_to_le32(scsidir | qtag);
^1da177e4c3f41 Linus Torvalds 2005-04-16 2025 pScsiReq->DataLength = cpu_to_le32(dataSize);
^1da177e4c3f41 Linus Torvalds 2005-04-16 2026
^1da177e4c3f41 Linus Torvalds 2005-04-16 2027
^1da177e4c3f41 Linus Torvalds 2005-04-16 2028 } else {
29dd3609f2fc70 Eric Moore 2007-09-14 2029 printk(MYIOC_s_ERR_FMT "%s@%d::mptctl_do_mpt_command - "
^1da177e4c3f41 Linus Torvalds 2005-04-16 2030 "SCSI driver is not loaded. \n",
29dd3609f2fc70 Eric Moore 2007-09-14 2031 ioc->name, __FILE__, __LINE__);
^1da177e4c3f41 Linus Torvalds 2005-04-16 2032 rc = -EFAULT;
^1da177e4c3f41 Linus Torvalds 2005-04-16 2033 goto done_free_mem;
^1da177e4c3f41 Linus Torvalds 2005-04-16 2034 }
^1da177e4c3f41 Linus Torvalds 2005-04-16 2035 break;
^1da177e4c3f41 Linus Torvalds 2005-04-16 2036
096f7a2a094af3 Moore, Eric 2006-02-02 2037 case MPI_FUNCTION_SMP_PASSTHROUGH:
096f7a2a094af3 Moore, Eric 2006-02-02 2038 /* Check mf->PassthruFlags to determine if
096f7a2a094af3 Moore, Eric 2006-02-02 2039 * transfer is ImmediateMode or not.
096f7a2a094af3 Moore, Eric 2006-02-02 2040 * Immediate mode returns data in the ReplyFrame.
096f7a2a094af3 Moore, Eric 2006-02-02 2041 * Else, we are sending request and response data
096f7a2a094af3 Moore, Eric 2006-02-02 2042 * in two SGLs at the end of the mf.
096f7a2a094af3 Moore, Eric 2006-02-02 2043 */
096f7a2a094af3 Moore, Eric 2006-02-02 2044 break;
096f7a2a094af3 Moore, Eric 2006-02-02 2045
096f7a2a094af3 Moore, Eric 2006-02-02 2046 case MPI_FUNCTION_SATA_PASSTHROUGH:
096f7a2a094af3 Moore, Eric 2006-02-02 2047 if (!ioc->sh) {
29dd3609f2fc70 Eric Moore 2007-09-14 2048 printk(MYIOC_s_ERR_FMT "%s@%d::mptctl_do_mpt_command - "
096f7a2a094af3 Moore, Eric 2006-02-02 2049 "SCSI driver is not loaded. \n",
29dd3609f2fc70 Eric Moore 2007-09-14 2050 ioc->name, __FILE__, __LINE__);
096f7a2a094af3 Moore, Eric 2006-02-02 2051 rc = -EFAULT;
096f7a2a094af3 Moore, Eric 2006-02-02 2052 goto done_free_mem;
096f7a2a094af3 Moore, Eric 2006-02-02 2053 }
096f7a2a094af3 Moore, Eric 2006-02-02 2054 break;
096f7a2a094af3 Moore, Eric 2006-02-02 2055
^1da177e4c3f41 Linus Torvalds 2005-04-16 2056 case MPI_FUNCTION_RAID_ACTION:
^1da177e4c3f41 Linus Torvalds 2005-04-16 2057 /* Just add a SGE
^1da177e4c3f41 Linus Torvalds 2005-04-16 2058 */
^1da177e4c3f41 Linus Torvalds 2005-04-16 2059 break;
^1da177e4c3f41 Linus Torvalds 2005-04-16 2060
^1da177e4c3f41 Linus Torvalds 2005-04-16 2061 case MPI_FUNCTION_RAID_SCSI_IO_PASSTHROUGH:
^1da177e4c3f41 Linus Torvalds 2005-04-16 2062 if (ioc->sh) {
^1da177e4c3f41 Linus Torvalds 2005-04-16 2063 SCSIIORequest_t *pScsiReq = (SCSIIORequest_t *) mf;
^1da177e4c3f41 Linus Torvalds 2005-04-16 2064 int qtag = MPI_SCSIIO_CONTROL_SIMPLEQ;
^1da177e4c3f41 Linus Torvalds 2005-04-16 2065 int scsidir = MPI_SCSIIO_CONTROL_READ;
^1da177e4c3f41 Linus Torvalds 2005-04-16 2066 int dataSize;
^1da177e4c3f41 Linus Torvalds 2005-04-16 2067
5f07e2499d6290 Moore, Eric 2006-02-02 2068 pScsiReq->MsgFlags &= ~MPI_SCSIIO_MSGFLGS_SENSE_WIDTH;
14d0f0b063f536 Kashyap, Desai 2009-05-29 2069 pScsiReq->MsgFlags |= mpt_msg_flags(ioc);
5f07e2499d6290 Moore, Eric 2006-02-02 2070
^1da177e4c3f41 Linus Torvalds 2005-04-16 2071
^1da177e4c3f41 Linus Torvalds 2005-04-16 2072 /* verify that app has not requested
^1da177e4c3f41 Linus Torvalds 2005-04-16 2073 * more sense data than driver
^1da177e4c3f41 Linus Torvalds 2005-04-16 2074 * can provide, if so, reset this parameter
^1da177e4c3f41 Linus Torvalds 2005-04-16 2075 * set the sense buffer pointer low address
^1da177e4c3f41 Linus Torvalds 2005-04-16 2076 * update the control field to specify Q type
^1da177e4c3f41 Linus Torvalds 2005-04-16 2077 */
^1da177e4c3f41 Linus Torvalds 2005-04-16 2078 if (karg.maxSenseBytes > MPT_SENSE_BUFFER_SIZE)
^1da177e4c3f41 Linus Torvalds 2005-04-16 2079 pScsiReq->SenseBufferLength = MPT_SENSE_BUFFER_SIZE;
^1da177e4c3f41 Linus Torvalds 2005-04-16 2080 else
^1da177e4c3f41 Linus Torvalds 2005-04-16 2081 pScsiReq->SenseBufferLength = karg.maxSenseBytes;
^1da177e4c3f41 Linus Torvalds 2005-04-16 2082
^1da177e4c3f41 Linus Torvalds 2005-04-16 2083 pScsiReq->SenseBufferLowAddr =
^1da177e4c3f41 Linus Torvalds 2005-04-16 2084 cpu_to_le32(ioc->sense_buf_low_dma
^1da177e4c3f41 Linus Torvalds 2005-04-16 2085 + (req_idx * MPT_SENSE_BUFFER_ALLOC));
^1da177e4c3f41 Linus Torvalds 2005-04-16 2086
^1da177e4c3f41 Linus Torvalds 2005-04-16 2087 /* All commands to physical devices are tagged
^1da177e4c3f41 Linus Torvalds 2005-04-16 2088 */
^1da177e4c3f41 Linus Torvalds 2005-04-16 2089
^1da177e4c3f41 Linus Torvalds 2005-04-16 2090 /* Have the IOCTL driver set the direction based
^1da177e4c3f41 Linus Torvalds 2005-04-16 2091 * on the dataOutSize (ordering issue with Sparc).
^1da177e4c3f41 Linus Torvalds 2005-04-16 2092 */
^1da177e4c3f41 Linus Torvalds 2005-04-16 2093 if (karg.dataOutSize > 0) {
^1da177e4c3f41 Linus Torvalds 2005-04-16 2094 scsidir = MPI_SCSIIO_CONTROL_WRITE;
^1da177e4c3f41 Linus Torvalds 2005-04-16 2095 dataSize = karg.dataOutSize;
^1da177e4c3f41 Linus Torvalds 2005-04-16 2096 } else {
^1da177e4c3f41 Linus Torvalds 2005-04-16 2097 scsidir = MPI_SCSIIO_CONTROL_READ;
^1da177e4c3f41 Linus Torvalds 2005-04-16 2098 dataSize = karg.dataInSize;
^1da177e4c3f41 Linus Torvalds 2005-04-16 2099 }
^1da177e4c3f41 Linus Torvalds 2005-04-16 2100
^1da177e4c3f41 Linus Torvalds 2005-04-16 2101 pScsiReq->Control = cpu_to_le32(scsidir | qtag);
^1da177e4c3f41 Linus Torvalds 2005-04-16 2102 pScsiReq->DataLength = cpu_to_le32(dataSize);
^1da177e4c3f41 Linus Torvalds 2005-04-16 2103
^1da177e4c3f41 Linus Torvalds 2005-04-16 2104 } else {
29dd3609f2fc70 Eric Moore 2007-09-14 2105 printk(MYIOC_s_ERR_FMT "%s@%d::mptctl_do_mpt_command - "
^1da177e4c3f41 Linus Torvalds 2005-04-16 2106 "SCSI driver is not loaded. \n",
29dd3609f2fc70 Eric Moore 2007-09-14 2107 ioc->name, __FILE__, __LINE__);
^1da177e4c3f41 Linus Torvalds 2005-04-16 2108 rc = -EFAULT;
^1da177e4c3f41 Linus Torvalds 2005-04-16 2109 goto done_free_mem;
^1da177e4c3f41 Linus Torvalds 2005-04-16 2110 }
^1da177e4c3f41 Linus Torvalds 2005-04-16 2111 break;
^1da177e4c3f41 Linus Torvalds 2005-04-16 2112
^1da177e4c3f41 Linus Torvalds 2005-04-16 2113 case MPI_FUNCTION_SCSI_TASK_MGMT:
^1da177e4c3f41 Linus Torvalds 2005-04-16 2114 {
ea2a788de4ce5e Kashyap, Desai 2009-05-29 2115 SCSITaskMgmt_t *pScsiTm;
ea2a788de4ce5e Kashyap, Desai 2009-05-29 2116 pScsiTm = (SCSITaskMgmt_t *)mf;
ea2a788de4ce5e Kashyap, Desai 2009-05-29 2117 dctlprintk(ioc, printk(MYIOC_s_DEBUG_FMT
ea2a788de4ce5e Kashyap, Desai 2009-05-29 2118 "\tTaskType=0x%x MsgFlags=0x%x "
ea2a788de4ce5e Kashyap, Desai 2009-05-29 2119 "TaskMsgContext=0x%x id=%d channel=%d\n",
ea2a788de4ce5e Kashyap, Desai 2009-05-29 2120 ioc->name, pScsiTm->TaskType, le32_to_cpu
ea2a788de4ce5e Kashyap, Desai 2009-05-29 2121 (pScsiTm->TaskMsgContext), pScsiTm->MsgFlags,
ea2a788de4ce5e Kashyap, Desai 2009-05-29 2122 pScsiTm->TargetID, pScsiTm->Bus));
^1da177e4c3f41 Linus Torvalds 2005-04-16 2123 break;
ea2a788de4ce5e Kashyap, Desai 2009-05-29 2124 }
^1da177e4c3f41 Linus Torvalds 2005-04-16 2125
^1da177e4c3f41 Linus Torvalds 2005-04-16 2126 case MPI_FUNCTION_IOC_INIT:
^1da177e4c3f41 Linus Torvalds 2005-04-16 2127 {
^1da177e4c3f41 Linus Torvalds 2005-04-16 2128 IOCInit_t *pInit = (IOCInit_t *) mf;
^1da177e4c3f41 Linus Torvalds 2005-04-16 2129 u32 high_addr, sense_high;
^1da177e4c3f41 Linus Torvalds 2005-04-16 2130
^1da177e4c3f41 Linus Torvalds 2005-04-16 2131 /* Verify that all entries in the IOC INIT match
^1da177e4c3f41 Linus Torvalds 2005-04-16 2132 * existing setup (and in LE format).
^1da177e4c3f41 Linus Torvalds 2005-04-16 2133 */
^1da177e4c3f41 Linus Torvalds 2005-04-16 2134 if (sizeof(dma_addr_t) == sizeof(u64)) {
^1da177e4c3f41 Linus Torvalds 2005-04-16 2135 high_addr = cpu_to_le32((u32)((u64)ioc->req_frames_dma >> 32));
^1da177e4c3f41 Linus Torvalds 2005-04-16 2136 sense_high= cpu_to_le32((u32)((u64)ioc->sense_buf_pool_dma >> 32));
^1da177e4c3f41 Linus Torvalds 2005-04-16 2137 } else {
^1da177e4c3f41 Linus Torvalds 2005-04-16 2138 high_addr = 0;
^1da177e4c3f41 Linus Torvalds 2005-04-16 2139 sense_high= 0;
^1da177e4c3f41 Linus Torvalds 2005-04-16 2140 }
^1da177e4c3f41 Linus Torvalds 2005-04-16 2141
^1da177e4c3f41 Linus Torvalds 2005-04-16 2142 if ((pInit->Flags != 0) || (pInit->MaxDevices != ioc->facts.MaxDevices) ||
^1da177e4c3f41 Linus Torvalds 2005-04-16 2143 (pInit->MaxBuses != ioc->facts.MaxBuses) ||
^1da177e4c3f41 Linus Torvalds 2005-04-16 2144 (pInit->ReplyFrameSize != cpu_to_le16(ioc->reply_sz)) ||
^1da177e4c3f41 Linus Torvalds 2005-04-16 2145 (pInit->HostMfaHighAddr != high_addr) ||
^1da177e4c3f41 Linus Torvalds 2005-04-16 2146 (pInit->SenseBufferHighAddr != sense_high)) {
29dd3609f2fc70 Eric Moore 2007-09-14 2147 printk(MYIOC_s_ERR_FMT "%s@%d::mptctl_do_mpt_command - "
^1da177e4c3f41 Linus Torvalds 2005-04-16 2148 "IOC_INIT issued with 1 or more incorrect parameters. Rejected.\n",
29dd3609f2fc70 Eric Moore 2007-09-14 2149 ioc->name, __FILE__, __LINE__);
^1da177e4c3f41 Linus Torvalds 2005-04-16 2150 rc = -EFAULT;
^1da177e4c3f41 Linus Torvalds 2005-04-16 2151 goto done_free_mem;
^1da177e4c3f41 Linus Torvalds 2005-04-16 2152 }
^1da177e4c3f41 Linus Torvalds 2005-04-16 2153 }
^1da177e4c3f41 Linus Torvalds 2005-04-16 2154 break;
^1da177e4c3f41 Linus Torvalds 2005-04-16 2155 default:
^1da177e4c3f41 Linus Torvalds 2005-04-16 2156 /*
^1da177e4c3f41 Linus Torvalds 2005-04-16 2157 * MPI_FUNCTION_PORT_ENABLE
^1da177e4c3f41 Linus Torvalds 2005-04-16 2158 * MPI_FUNCTION_TARGET_CMD_BUFFER_POST
^1da177e4c3f41 Linus Torvalds 2005-04-16 2159 * MPI_FUNCTION_TARGET_ASSIST
^1da177e4c3f41 Linus Torvalds 2005-04-16 2160 * MPI_FUNCTION_TARGET_STATUS_SEND
^1da177e4c3f41 Linus Torvalds 2005-04-16 2161 * MPI_FUNCTION_TARGET_MODE_ABORT
^1da177e4c3f41 Linus Torvalds 2005-04-16 2162 * MPI_FUNCTION_IOC_MESSAGE_UNIT_RESET
^1da177e4c3f41 Linus Torvalds 2005-04-16 2163 * MPI_FUNCTION_IO_UNIT_RESET
^1da177e4c3f41 Linus Torvalds 2005-04-16 2164 * MPI_FUNCTION_HANDSHAKE
^1da177e4c3f41 Linus Torvalds 2005-04-16 2165 * MPI_FUNCTION_REPLY_FRAME_REMOVAL
^1da177e4c3f41 Linus Torvalds 2005-04-16 2166 * MPI_FUNCTION_EVENT_NOTIFICATION
^1da177e4c3f41 Linus Torvalds 2005-04-16 2167 * (driver handles event notification)
^1da177e4c3f41 Linus Torvalds 2005-04-16 2168 * MPI_FUNCTION_EVENT_ACK
^1da177e4c3f41 Linus Torvalds 2005-04-16 2169 */
^1da177e4c3f41 Linus Torvalds 2005-04-16 2170
^1da177e4c3f41 Linus Torvalds 2005-04-16 2171 /* What to do with these??? CHECK ME!!!
^1da177e4c3f41 Linus Torvalds 2005-04-16 2172 MPI_FUNCTION_FC_LINK_SRVC_BUF_POST
^1da177e4c3f41 Linus Torvalds 2005-04-16 2173 MPI_FUNCTION_FC_LINK_SRVC_RSP
^1da177e4c3f41 Linus Torvalds 2005-04-16 2174 MPI_FUNCTION_FC_ABORT
^1da177e4c3f41 Linus Torvalds 2005-04-16 2175 MPI_FUNCTION_LAN_SEND
^1da177e4c3f41 Linus Torvalds 2005-04-16 2176 MPI_FUNCTION_LAN_RECEIVE
^1da177e4c3f41 Linus Torvalds 2005-04-16 2177 MPI_FUNCTION_LAN_RESET
^1da177e4c3f41 Linus Torvalds 2005-04-16 2178 */
^1da177e4c3f41 Linus Torvalds 2005-04-16 2179
29dd3609f2fc70 Eric Moore 2007-09-14 2180 printk(MYIOC_s_ERR_FMT "%s@%d::mptctl_do_mpt_command - "
^1da177e4c3f41 Linus Torvalds 2005-04-16 2181 "Illegal request (function 0x%x) \n",
29dd3609f2fc70 Eric Moore 2007-09-14 2182 ioc->name, __FILE__, __LINE__, hdr->Function);
^1da177e4c3f41 Linus Torvalds 2005-04-16 2183 rc = -EFAULT;
^1da177e4c3f41 Linus Torvalds 2005-04-16 2184 goto done_free_mem;
^1da177e4c3f41 Linus Torvalds 2005-04-16 2185 }
^1da177e4c3f41 Linus Torvalds 2005-04-16 2186
^1da177e4c3f41 Linus Torvalds 2005-04-16 2187 /* Add the SGL ( at most one data in SGE and one data out SGE )
^1da177e4c3f41 Linus Torvalds 2005-04-16 2188 * In the case of two SGE's - the data out (write) will always
^1da177e4c3f41 Linus Torvalds 2005-04-16 2189 * preceede the data in (read) SGE. psgList is used to free the
^1da177e4c3f41 Linus Torvalds 2005-04-16 2190 * allocated memory.
^1da177e4c3f41 Linus Torvalds 2005-04-16 2191 */
^1da177e4c3f41 Linus Torvalds 2005-04-16 2192 psge = (char *) (((int *) mf) + karg.dataSgeOffset);
^1da177e4c3f41 Linus Torvalds 2005-04-16 2193 flagsLength = 0;
^1da177e4c3f41 Linus Torvalds 2005-04-16 2194
^1da177e4c3f41 Linus Torvalds 2005-04-16 2195 if (karg.dataOutSize > 0)
^1da177e4c3f41 Linus Torvalds 2005-04-16 2196 sgSize ++;
^1da177e4c3f41 Linus Torvalds 2005-04-16 2197
^1da177e4c3f41 Linus Torvalds 2005-04-16 2198 if (karg.dataInSize > 0)
^1da177e4c3f41 Linus Torvalds 2005-04-16 2199 sgSize ++;
^1da177e4c3f41 Linus Torvalds 2005-04-16 2200
^1da177e4c3f41 Linus Torvalds 2005-04-16 2201 if (sgSize > 0) {
^1da177e4c3f41 Linus Torvalds 2005-04-16 2202
^1da177e4c3f41 Linus Torvalds 2005-04-16 2203 /* Set up the dataOut memory allocation */
^1da177e4c3f41 Linus Torvalds 2005-04-16 2204 if (karg.dataOutSize > 0) {
^1da177e4c3f41 Linus Torvalds 2005-04-16 2205 if (karg.dataInSize > 0) {
^1da177e4c3f41 Linus Torvalds 2005-04-16 2206 flagsLength = ( MPI_SGE_FLAGS_SIMPLE_ELEMENT |
^1da177e4c3f41 Linus Torvalds 2005-04-16 2207 MPI_SGE_FLAGS_END_OF_BUFFER |
14d0f0b063f536 Kashyap, Desai 2009-05-29 2208 MPI_SGE_FLAGS_DIRECTION)
^1da177e4c3f41 Linus Torvalds 2005-04-16 2209 << MPI_SGE_FLAGS_SHIFT;
^1da177e4c3f41 Linus Torvalds 2005-04-16 2210 } else {
^1da177e4c3f41 Linus Torvalds 2005-04-16 2211 flagsLength = MPT_SGE_FLAGS_SSIMPLE_WRITE;
^1da177e4c3f41 Linus Torvalds 2005-04-16 2212 }
^1da177e4c3f41 Linus Torvalds 2005-04-16 2213 flagsLength |= karg.dataOutSize;
^1da177e4c3f41 Linus Torvalds 2005-04-16 2214 bufOut.len = karg.dataOutSize;
^1da177e4c3f41 Linus Torvalds 2005-04-16 2215 bufOut.kptr = pci_alloc_consistent(
^1da177e4c3f41 Linus Torvalds 2005-04-16 2216 ioc->pcidev, bufOut.len, &dma_addr_out);
^1da177e4c3f41 Linus Torvalds 2005-04-16 2217
^1da177e4c3f41 Linus Torvalds 2005-04-16 2218 if (bufOut.kptr == NULL) {
^1da177e4c3f41 Linus Torvalds 2005-04-16 2219 rc = -ENOMEM;
^1da177e4c3f41 Linus Torvalds 2005-04-16 2220 goto done_free_mem;
^1da177e4c3f41 Linus Torvalds 2005-04-16 2221 } else {
^1da177e4c3f41 Linus Torvalds 2005-04-16 2222 /* Set up this SGE.
^1da177e4c3f41 Linus Torvalds 2005-04-16 2223 * Copy to MF and to sglbuf
^1da177e4c3f41 Linus Torvalds 2005-04-16 2224 */
14d0f0b063f536 Kashyap, Desai 2009-05-29 2225 ioc->add_sge(psge, flagsLength, dma_addr_out);
14d0f0b063f536 Kashyap, Desai 2009-05-29 2226 psge += ioc->SGE_size;
^1da177e4c3f41 Linus Torvalds 2005-04-16 2227
^1da177e4c3f41 Linus Torvalds 2005-04-16 2228 /* Copy user data to kernel space.
^1da177e4c3f41 Linus Torvalds 2005-04-16 2229 */
^1da177e4c3f41 Linus Torvalds 2005-04-16 2230 if (copy_from_user(bufOut.kptr,
^1da177e4c3f41 Linus Torvalds 2005-04-16 2231 karg.dataOutBufPtr,
^1da177e4c3f41 Linus Torvalds 2005-04-16 2232 bufOut.len)) {
29dd3609f2fc70 Eric Moore 2007-09-14 2233 printk(MYIOC_s_ERR_FMT
^1da177e4c3f41 Linus Torvalds 2005-04-16 2234 "%s@%d::mptctl_do_mpt_command - Unable "
^1da177e4c3f41 Linus Torvalds 2005-04-16 2235 "to read user data "
^1da177e4c3f41 Linus Torvalds 2005-04-16 2236 "struct @ %p\n",
29dd3609f2fc70 Eric Moore 2007-09-14 2237 ioc->name, __FILE__, __LINE__,karg.dataOutBufPtr);
^1da177e4c3f41 Linus Torvalds 2005-04-16 2238 rc = -EFAULT;
^1da177e4c3f41 Linus Torvalds 2005-04-16 2239 goto done_free_mem;
^1da177e4c3f41 Linus Torvalds 2005-04-16 2240 }
^1da177e4c3f41 Linus Torvalds 2005-04-16 2241 }
^1da177e4c3f41 Linus Torvalds 2005-04-16 2242 }
^1da177e4c3f41 Linus Torvalds 2005-04-16 2243
^1da177e4c3f41 Linus Torvalds 2005-04-16 2244 if (karg.dataInSize > 0) {
^1da177e4c3f41 Linus Torvalds 2005-04-16 2245 flagsLength = MPT_SGE_FLAGS_SSIMPLE_READ;
^1da177e4c3f41 Linus Torvalds 2005-04-16 2246 flagsLength |= karg.dataInSize;
^1da177e4c3f41 Linus Torvalds 2005-04-16 2247
^1da177e4c3f41 Linus Torvalds 2005-04-16 2248 bufIn.len = karg.dataInSize;
^1da177e4c3f41 Linus Torvalds 2005-04-16 2249 bufIn.kptr = pci_alloc_consistent(ioc->pcidev,
^1da177e4c3f41 Linus Torvalds 2005-04-16 2250 bufIn.len, &dma_addr_in);
^1da177e4c3f41 Linus Torvalds 2005-04-16 2251
^1da177e4c3f41 Linus Torvalds 2005-04-16 2252 if (bufIn.kptr == NULL) {
^1da177e4c3f41 Linus Torvalds 2005-04-16 2253 rc = -ENOMEM;
^1da177e4c3f41 Linus Torvalds 2005-04-16 2254 goto done_free_mem;
^1da177e4c3f41 Linus Torvalds 2005-04-16 2255 } else {
^1da177e4c3f41 Linus Torvalds 2005-04-16 2256 /* Set up this SGE
^1da177e4c3f41 Linus Torvalds 2005-04-16 2257 * Copy to MF and to sglbuf
^1da177e4c3f41 Linus Torvalds 2005-04-16 2258 */
14d0f0b063f536 Kashyap, Desai 2009-05-29 2259 ioc->add_sge(psge, flagsLength, dma_addr_in);
^1da177e4c3f41 Linus Torvalds 2005-04-16 2260 }
^1da177e4c3f41 Linus Torvalds 2005-04-16 2261 }
^1da177e4c3f41 Linus Torvalds 2005-04-16 2262 } else {
^1da177e4c3f41 Linus Torvalds 2005-04-16 2263 /* Add a NULL SGE
^1da177e4c3f41 Linus Torvalds 2005-04-16 2264 */
14d0f0b063f536 Kashyap, Desai 2009-05-29 2265 ioc->add_sge(psge, flagsLength, (dma_addr_t) -1);
^1da177e4c3f41 Linus Torvalds 2005-04-16 2266 }
^1da177e4c3f41 Linus Torvalds 2005-04-16 2267
ea2a788de4ce5e Kashyap, Desai 2009-05-29 2268 SET_MGMT_MSG_CONTEXT(ioc->ioctl_cmds.msg_context, hdr->MsgContext);
ea2a788de4ce5e Kashyap, Desai 2009-05-29 2269 INITIALIZE_MGMT_STATUS(ioc->ioctl_cmds.status)
^1da177e4c3f41 Linus Torvalds 2005-04-16 2270 if (hdr->Function == MPI_FUNCTION_SCSI_TASK_MGMT) {
^1da177e4c3f41 Linus Torvalds 2005-04-16 2271
ea2a788de4ce5e Kashyap, Desai 2009-05-29 2272 mutex_lock(&ioc->taskmgmt_cmds.mutex);
ea2a788de4ce5e Kashyap, Desai 2009-05-29 2273 if (mpt_set_taskmgmt_in_progress_flag(ioc) != 0) {
ea2a788de4ce5e Kashyap, Desai 2009-05-29 2274 mutex_unlock(&ioc->taskmgmt_cmds.mutex);
ea2a788de4ce5e Kashyap, Desai 2009-05-29 2275 goto done_free_mem;
ea2a788de4ce5e Kashyap, Desai 2009-05-29 2276 }
ea2a788de4ce5e Kashyap, Desai 2009-05-29 2277
09120a8cd38dbd Prakash, Sathya 2007-07-24 2278 DBG_DUMP_TM_REQUEST_FRAME(ioc, (u32 *)mf);
^1da177e4c3f41 Linus Torvalds 2005-04-16 2279
7a195f464e0692 Prakash, Sathya 2007-08-14 2280 if ((ioc->facts.IOCCapabilities & MPI_IOCFACTS_CAPABILITY_HIGH_PRI_Q) &&
beda27821fd319 Mark Balantzyan 2019-08-14 2281 (ioc->facts.MsgVersion >= MPI_VERSION_01_05)) {
beda27821fd319 Mark Balantzyan 2019-08-14 2282 mutex_lock(&mpctl_mutex);
7a195f464e0692 Prakash, Sathya 2007-08-14 2283 mpt_put_msg_frame_hi_pri(mptctl_id, ioc, mf);
beda27821fd319 Mark Balantzyan 2019-08-14 2284 mutex_unlock(&mpctl_mutex);
beda27821fd319 Mark Balantzyan 2019-08-14 2285 } else {
beda27821fd319 Mark Balantzyan 2019-08-14 2286 mutex_lock(&mpctl_mutex);
beda27821fd319 Mark Balantzyan 2019-08-14 2287 rc = mpt_send_handshake_request(mptctl_id, ioc, sizeof(SCSITaskMgmt_t), (u32 *)mf, CAN_SLEEP);
beda27821fd319 Mark Balantzyan 2019-08-14 2288 mutex_unlock(&mpctl_mutex);
7a195f464e0692 Prakash, Sathya 2007-08-14 2289 if (rc != 0) {
7a195f464e0692 Prakash, Sathya 2007-08-14 2290 dfailprintk(ioc, printk(MYIOC_s_ERR_FMT
ea2a788de4ce5e Kashyap, Desai 2009-05-29 2291 "send_handshake FAILED! (ioc %p, mf %p)\n",
7a195f464e0692 Prakash, Sathya 2007-08-14 2292 ioc->name, ioc, mf));
ea2a788de4ce5e Kashyap, Desai 2009-05-29 2293 mpt_clear_taskmgmt_in_progress_flag(ioc);
^1da177e4c3f41 Linus Torvalds 2005-04-16 2294 rc = -ENODATA;
ea2a788de4ce5e Kashyap, Desai 2009-05-29 2295 mutex_unlock(&ioc->taskmgmt_cmds.mutex);
^1da177e4c3f41 Linus Torvalds 2005-04-16 2296 goto done_free_mem;
^1da177e4c3f41 Linus Torvalds 2005-04-16 2297 }
7a195f464e0692 Prakash, Sathya 2007-08-14 2298 }
^1da177e4c3f41 Linus Torvalds 2005-04-16 2299
^1da177e4c3f41 Linus Torvalds 2005-04-16 @2300 } else
beda27821fd319 Mark Balantzyan 2019-08-14 2301 mutex_lock(&mpctl_mutex);
^1da177e4c3f41 Linus Torvalds 2005-04-16 2302 mpt_put_msg_frame(mptctl_id, ioc, mf);
beda27821fd319 Mark Balantzyan 2019-08-14 2303 mutex_unlock(&mpctl_mutex);
^1da177e4c3f41 Linus Torvalds 2005-04-16 2304
^1da177e4c3f41 Linus Torvalds 2005-04-16 2305 /* Now wait for the command to complete */
^1da177e4c3f41 Linus Torvalds 2005-04-16 2306 timeout = (karg.timeout > 0) ? karg.timeout : MPT_IOCTL_DEFAULT_TIMEOUT;
ea2a788de4ce5e Kashyap, Desai 2009-05-29 2307 retry_wait:
ea2a788de4ce5e Kashyap, Desai 2009-05-29 2308 timeleft = wait_for_completion_timeout(&ioc->ioctl_cmds.done,
^1da177e4c3f41 Linus Torvalds 2005-04-16 2309 HZ*timeout);
ea2a788de4ce5e Kashyap, Desai 2009-05-29 2310 if (!(ioc->ioctl_cmds.status & MPT_MGMT_STATUS_COMMAND_GOOD)) {
ea2a788de4ce5e Kashyap, Desai 2009-05-29 2311 rc = -ETIME;
ea2a788de4ce5e Kashyap, Desai 2009-05-29 2312 dfailprintk(ioc, printk(MYIOC_s_ERR_FMT "%s: TIMED OUT!\n",
ea2a788de4ce5e Kashyap, Desai 2009-05-29 2313 ioc->name, __func__));
ea2a788de4ce5e Kashyap, Desai 2009-05-29 2314 if (ioc->ioctl_cmds.status & MPT_MGMT_STATUS_DID_IOCRESET) {
ea2a788de4ce5e Kashyap, Desai 2009-05-29 2315 if (function == MPI_FUNCTION_SCSI_TASK_MGMT)
ea2a788de4ce5e Kashyap, Desai 2009-05-29 2316 mutex_unlock(&ioc->taskmgmt_cmds.mutex);
^1da177e4c3f41 Linus Torvalds 2005-04-16 2317 goto done_free_mem;
^1da177e4c3f41 Linus Torvalds 2005-04-16 2318 }
ea2a788de4ce5e Kashyap, Desai 2009-05-29 2319 if (!timeleft) {
97009a29e8c999 Kei Tokunaga 2010-06-22 2320 printk(MYIOC_s_WARN_FMT
97009a29e8c999 Kei Tokunaga 2010-06-22 2321 "mpt cmd timeout, doorbell=0x%08x"
97009a29e8c999 Kei Tokunaga 2010-06-22 2322 " function=0x%x\n",
97009a29e8c999 Kei Tokunaga 2010-06-22 2323 ioc->name, mpt_GetIocState(ioc, 0), function);
ea2a788de4ce5e Kashyap, Desai 2009-05-29 2324 if (function == MPI_FUNCTION_SCSI_TASK_MGMT)
ea2a788de4ce5e Kashyap, Desai 2009-05-29 2325 mutex_unlock(&ioc->taskmgmt_cmds.mutex);
ea2a788de4ce5e Kashyap, Desai 2009-05-29 2326 mptctl_timeout_expired(ioc, mf);
ea2a788de4ce5e Kashyap, Desai 2009-05-29 2327 mf = NULL;
ea2a788de4ce5e Kashyap, Desai 2009-05-29 2328 } else
ea2a788de4ce5e Kashyap, Desai 2009-05-29 2329 goto retry_wait;
ea2a788de4ce5e Kashyap, Desai 2009-05-29 2330 goto done_free_mem;
ea2a788de4ce5e Kashyap, Desai 2009-05-29 2331 }
ea2a788de4ce5e Kashyap, Desai 2009-05-29 2332
ea2a788de4ce5e Kashyap, Desai 2009-05-29 2333 if (function == MPI_FUNCTION_SCSI_TASK_MGMT)
ea2a788de4ce5e Kashyap, Desai 2009-05-29 2334 mutex_unlock(&ioc->taskmgmt_cmds.mutex);
ea2a788de4ce5e Kashyap, Desai 2009-05-29 2335
^1da177e4c3f41 Linus Torvalds 2005-04-16 2336
^1da177e4c3f41 Linus Torvalds 2005-04-16 2337 mf = NULL;
^1da177e4c3f41 Linus Torvalds 2005-04-16 2338
^1da177e4c3f41 Linus Torvalds 2005-04-16 2339 /* If a valid reply frame, copy to the user.
^1da177e4c3f41 Linus Torvalds 2005-04-16 2340 * Offset 2: reply length in U32's
^1da177e4c3f41 Linus Torvalds 2005-04-16 2341 */
ea2a788de4ce5e Kashyap, Desai 2009-05-29 2342 if (ioc->ioctl_cmds.status & MPT_MGMT_STATUS_RF_VALID) {
^1da177e4c3f41 Linus Torvalds 2005-04-16 2343 if (karg.maxReplyBytes < ioc->reply_sz) {
ea2a788de4ce5e Kashyap, Desai 2009-05-29 2344 sz = min(karg.maxReplyBytes,
ea2a788de4ce5e Kashyap, Desai 2009-05-29 2345 4*ioc->ioctl_cmds.reply[2]);
^1da177e4c3f41 Linus Torvalds 2005-04-16 2346 } else {
ea2a788de4ce5e Kashyap, Desai 2009-05-29 2347 sz = min(ioc->reply_sz, 4*ioc->ioctl_cmds.reply[2]);
^1da177e4c3f41 Linus Torvalds 2005-04-16 2348 }
^1da177e4c3f41 Linus Torvalds 2005-04-16 2349 if (sz > 0) {
^1da177e4c3f41 Linus Torvalds 2005-04-16 2350 if (copy_to_user(karg.replyFrameBufPtr,
ea2a788de4ce5e Kashyap, Desai 2009-05-29 2351 ioc->ioctl_cmds.reply, sz)){
29dd3609f2fc70 Eric Moore 2007-09-14 2352 printk(MYIOC_s_ERR_FMT
^1da177e4c3f41 Linus Torvalds 2005-04-16 2353 "%s@%d::mptctl_do_mpt_command - "
^1da177e4c3f41 Linus Torvalds 2005-04-16 2354 "Unable to write out reply frame %p\n",
29dd3609f2fc70 Eric Moore 2007-09-14 2355 ioc->name, __FILE__, __LINE__, karg.replyFrameBufPtr);
^1da177e4c3f41 Linus Torvalds 2005-04-16 2356 rc = -ENODATA;
^1da177e4c3f41 Linus Torvalds 2005-04-16 2357 goto done_free_mem;
^1da177e4c3f41 Linus Torvalds 2005-04-16 2358 }
^1da177e4c3f41 Linus Torvalds 2005-04-16 2359 }
^1da177e4c3f41 Linus Torvalds 2005-04-16 2360 }
^1da177e4c3f41 Linus Torvalds 2005-04-16 2361
^1da177e4c3f41 Linus Torvalds 2005-04-16 2362 /* If valid sense data, copy to user.
^1da177e4c3f41 Linus Torvalds 2005-04-16 2363 */
ea2a788de4ce5e Kashyap, Desai 2009-05-29 2364 if (ioc->ioctl_cmds.status & MPT_MGMT_STATUS_SENSE_VALID) {
^1da177e4c3f41 Linus Torvalds 2005-04-16 2365 sz = min(karg.maxSenseBytes, MPT_SENSE_BUFFER_SIZE);
^1da177e4c3f41 Linus Torvalds 2005-04-16 2366 if (sz > 0) {
ea2a788de4ce5e Kashyap, Desai 2009-05-29 2367 if (copy_to_user(karg.senseDataPtr,
ea2a788de4ce5e Kashyap, Desai 2009-05-29 2368 ioc->ioctl_cmds.sense, sz)) {
29dd3609f2fc70 Eric Moore 2007-09-14 2369 printk(MYIOC_s_ERR_FMT "%s@%d::mptctl_do_mpt_command - "
^1da177e4c3f41 Linus Torvalds 2005-04-16 2370 "Unable to write sense data to user %p\n",
29dd3609f2fc70 Eric Moore 2007-09-14 2371 ioc->name, __FILE__, __LINE__,
^1da177e4c3f41 Linus Torvalds 2005-04-16 2372 karg.senseDataPtr);
^1da177e4c3f41 Linus Torvalds 2005-04-16 2373 rc = -ENODATA;
^1da177e4c3f41 Linus Torvalds 2005-04-16 2374 goto done_free_mem;
^1da177e4c3f41 Linus Torvalds 2005-04-16 2375 }
^1da177e4c3f41 Linus Torvalds 2005-04-16 2376 }
^1da177e4c3f41 Linus Torvalds 2005-04-16 2377 }
^1da177e4c3f41 Linus Torvalds 2005-04-16 2378
^1da177e4c3f41 Linus Torvalds 2005-04-16 2379 /* If the overall status is _GOOD and data in, copy data
^1da177e4c3f41 Linus Torvalds 2005-04-16 2380 * to user.
^1da177e4c3f41 Linus Torvalds 2005-04-16 2381 */
ea2a788de4ce5e Kashyap, Desai 2009-05-29 2382 if ((ioc->ioctl_cmds.status & MPT_MGMT_STATUS_COMMAND_GOOD) &&
^1da177e4c3f41 Linus Torvalds 2005-04-16 2383 (karg.dataInSize > 0) && (bufIn.kptr)) {
^1da177e4c3f41 Linus Torvalds 2005-04-16 2384
^1da177e4c3f41 Linus Torvalds 2005-04-16 2385 if (copy_to_user(karg.dataInBufPtr,
^1da177e4c3f41 Linus Torvalds 2005-04-16 2386 bufIn.kptr, karg.dataInSize)) {
29dd3609f2fc70 Eric Moore 2007-09-14 2387 printk(MYIOC_s_ERR_FMT "%s@%d::mptctl_do_mpt_command - "
^1da177e4c3f41 Linus Torvalds 2005-04-16 2388 "Unable to write data to user %p\n",
29dd3609f2fc70 Eric Moore 2007-09-14 2389 ioc->name, __FILE__, __LINE__,
^1da177e4c3f41 Linus Torvalds 2005-04-16 2390 karg.dataInBufPtr);
^1da177e4c3f41 Linus Torvalds 2005-04-16 2391 rc = -ENODATA;
^1da177e4c3f41 Linus Torvalds 2005-04-16 2392 }
^1da177e4c3f41 Linus Torvalds 2005-04-16 2393 }
^1da177e4c3f41 Linus Torvalds 2005-04-16 2394
^1da177e4c3f41 Linus Torvalds 2005-04-16 2395 done_free_mem:
^1da177e4c3f41 Linus Torvalds 2005-04-16 2396
ea2a788de4ce5e Kashyap, Desai 2009-05-29 2397 CLEAR_MGMT_STATUS(ioc->ioctl_cmds.status)
ea2a788de4ce5e Kashyap, Desai 2009-05-29 2398 SET_MGMT_MSG_CONTEXT(ioc->ioctl_cmds.msg_context, 0);
^1da177e4c3f41 Linus Torvalds 2005-04-16 2399
^1da177e4c3f41 Linus Torvalds 2005-04-16 2400 /* Free the allocated memory.
^1da177e4c3f41 Linus Torvalds 2005-04-16 2401 */
^1da177e4c3f41 Linus Torvalds 2005-04-16 2402 if (bufOut.kptr != NULL) {
^1da177e4c3f41 Linus Torvalds 2005-04-16 2403 pci_free_consistent(ioc->pcidev,
^1da177e4c3f41 Linus Torvalds 2005-04-16 2404 bufOut.len, (void *) bufOut.kptr, dma_addr_out);
^1da177e4c3f41 Linus Torvalds 2005-04-16 2405 }
^1da177e4c3f41 Linus Torvalds 2005-04-16 2406
^1da177e4c3f41 Linus Torvalds 2005-04-16 2407 if (bufIn.kptr != NULL) {
^1da177e4c3f41 Linus Torvalds 2005-04-16 2408 pci_free_consistent(ioc->pcidev,
^1da177e4c3f41 Linus Torvalds 2005-04-16 2409 bufIn.len, (void *) bufIn.kptr, dma_addr_in);
^1da177e4c3f41 Linus Torvalds 2005-04-16 2410 }
^1da177e4c3f41 Linus Torvalds 2005-04-16 2411
^1da177e4c3f41 Linus Torvalds 2005-04-16 2412 /* mf is null if command issued successfully
25985edcedea63 Lucas De Marchi 2011-03-30 2413 * otherwise, failure occurred after mf acquired.
^1da177e4c3f41 Linus Torvalds 2005-04-16 2414 */
^1da177e4c3f41 Linus Torvalds 2005-04-16 2415 if (mf)
^1da177e4c3f41 Linus Torvalds 2005-04-16 2416 mpt_free_msg_frame(ioc, mf);
^1da177e4c3f41 Linus Torvalds 2005-04-16 2417
^1da177e4c3f41 Linus Torvalds 2005-04-16 2418 return rc;
^1da177e4c3f41 Linus Torvalds 2005-04-16 2419 }
^1da177e4c3f41 Linus Torvalds 2005-04-16 2420
:::::: The code at line 2300 was first introduced by commit
:::::: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Linux-2.6.12-rc2
:::::: TO: Linus Torvalds <torvalds@...970.osdl.org>
:::::: CC: Linus Torvalds <torvalds@...970.osdl.org>
---
0-DAY kernel test infrastructure Open Source Technology Center
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