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* OpenZFS restructuring - move platform specific sourcesMatthew Macy2019-09-061-574/+0
| | | | | | | | | | | | Move platform specific Linux source under module/os/linux/ and update the build system accordingly. Additional code restructuring will follow to make the common code fully portable. Reviewed-by: Jorgen Lundman <[email protected]> Reviewed-by: Igor Kozhukhov <[email protected]> Reviewed-by: Brian Behlendorf <[email protected]> Signed-off-by: Matthew Macy <[email protected]> Closes #9206
* Make module tunables cross platformMatthew Macy2019-09-051-1/+0
| | | | | | | | | | | Adds ZFS_MODULE_PARAM to abstract module parameter setting to operating systems other than Linux. Reviewed-by: Jorgen Lundman <[email protected]> Reviewed-by: Igor Kozhukhov <[email protected]> Reviewed-by: Brian Behlendorf <[email protected]> Signed-off-by: Matt Macy <[email protected]> Signed-off-by: Ryan Moeller <[email protected]> Closes #9230
* Fix Intel QAT / ZFS compatibility on v4.7.1+ kernelsloli10K2019-09-031-1/+1
| | | | | | | | This change use the compat code introduced in 9cc1844a. Reviewed-by: Brian Behlendorf <[email protected]> Signed-off-by: loli10K <[email protected]> Closes #9268 Closes #9269
* Code improvement and bug fixes for QAT supportcfzhu2019-04-161-2/+37
| | | | | | | | | | | | | | | | | | | | 1. Support QAT when ZFS is root file-system: When ZFS module is loaded before QAT started, the QAT can be started again in post-process, e.g.: echo 0 > /sys/module/zfs/parameters/zfs_qat_compress_disable echo 0 > /sys/module/zfs/parameters/zfs_qat_encrypt_disable echo 0 > /sys/module/zfs/parameters/zfs_qat_checksum_disable 2. Verify alder checksum of the de-compress result 3. Allocate Digest, IV and AAD buffer in physical contiguous memory by QAT_PHYS_CONTIG_ALLOC. 4. Update the documentation for zfs_qat_compress_disable, zfs_qat_checksum_disable, zfs_qat_encrypt_disable. Reviewed-by: Tom Caputi <[email protected]> Reviewed-by: Brian Behlendorf <[email protected]> Signed-off-by: Weigang Li <[email protected]> Signed-off-by: Chengfeix Zhu <[email protected]> Closes #8323 Closes #8610
* Fix inst_num overflow in qat_crypt.cBrian Behlendorf2018-05-011-5/+3
| | | | | | | | | | | | | This patch fixes the same issue which was previously addressed in 6051. The variable "inst_num" was of the incorrect type and "atomic_inc_32_nv()" could cause an overflow damaging its neighbor. Cast the return value of atomic_inc_32_nv() to Cpa32U. Fix a few types for num_inst for clarity. Reviewed-by: Weigang Li <[email protected]> Signed-off-by: Brian Behlendorf <[email protected]> Closes #7468
* Resolve QAT issues with incompressible dataTom Caputi2018-03-291-34/+90
| | | | | | | | | | | | | | | | | | | | | | Currently, when ZFS wants to accelerate compression with QAT, it passes a destination buffer of the same size as the source buffer. Unfortunately, if the data is incompressible, QAT can actually "compress" the data to be larger than the source buffer. When this happens, the QAT driver will return a FAILED error code and print warnings to dmesg. This patch fixes these issues by providing the QAT driver with an additional buffer to work with so that even completely incompressible source data will not cause an overflow. This patch also resolves an error handling issue where incompressible data attempts compression twice: once by QAT and once in software. To fix this issue, a new (and fake) error code CPA_STATUS_INOMPRESSIBLE has been added so that the calling code can correctly account for the difference between a hardware failure and data that simply cannot be compressed. Reviewed-by: Brian Behlendorf <[email protected]> Reviewed-by: Weigang Li <[email protected]> Signed-off-by: Tom Caputi <[email protected]> Closes #7338
* Fix spelling errors in commentsTom Caputi2018-03-211-5/+5
| | | | | | | | | | This patch simply corrects some spelling / grammar errors in the QAT and encryption code comments. No functional changes Reviewed-by: George Melikov <[email protected]> Reviewed-by: Brian Behlendorf <[email protected]> Reviewed-by: Giuseppe Di Natale <[email protected]> Signed-off-by: Tom Caputi <[email protected]> Closes #7319
* Allow QAT to handle non page-aligned buffersTom Caputi2018-03-161-7/+15
| | | | | | | | | | | | | | This patch adds some handling to the QAT acceleration functions that allows them to handle buffers that are not aligned with the page cache. At the moment this never happens since callers only happen to work with page-aligned buffers, but this code should prevent headaches if this isn't always true in the future. This patch also adds some cleanups to align the QAT compression code with the encryption and checksumming code. Reviewed-by: Brian Behlendorf <[email protected]> Signed-off-by: Weigang Li <[email protected]> Signed-off-by: Tom Caputi <[email protected]> Closes #7305
* SHA256 QAT accelerationTom Caputi2018-03-151-1/+5
| | | | | | | | | | | | This patch enables acceleration of SHA256 checksums using Intel Quick Assist Technology. This patch also fixes up and refactors some of the code from QAT encryption to make the behavior consistent. Reviewed-by: Brian Behlendorf <[email protected]> Signed-off-by: Chengfeix Zhu <[email protected]> Signed-off-by: Weigang Li <[email protected]> Signed-off-by: Tom Caputi <[email protected]> Closes #7295
* QAT support for AES-GCMTom Caputi2018-03-091-166/+57
| | | | | | | | | | This patch adds support for acceleration of AES-GCM encryption with Intel Quick Assist Technology. Reviewed-by: Brian Behlendorf <[email protected]> Signed-off-by: Chengfeix Zhu <[email protected]> Signed-off-by: Weigang Li <[email protected]> Signed-off-by: Tom Caputi <[email protected]> Closes #7282
* Bug fix in qat_compress.c for vmalloc addr checkwli52018-02-051-4/+0
| | | | | | | | | Remove the unused vmalloc address check, and function mem_to_page will handle the non-vmalloc address when map it to a physical address. Reviewed-by: Brian Behlendorf <[email protected]> Signed-off-by: Weigang Li <[email protected]> Closes #7125
* Bug fix in qat_compress.c when compressed size is < 4KBwli52017-11-071-4/+4
| | | | | | | | | | | | | | | When the 128KB block is compressed to less than 4KB, the pointer to the Footer is not in the end of the compressed buffer, that's because the Header offset was added twice for this case. So there is a gap between the Footer and the compressed buffer. 1. Always compute the Footer pointer address from the start of the last page. 2. Remove the un-used workaroud code which has been verified fixed with the latest driver and this fix. Reviewed-by: Brian Behlendorf <[email protected]> Reviewed-by: George Melikov <[email protected]> Signed-off-by: Weigang Li <[email protected]> Closes #6827
* Support integration with new QAT productswli52017-10-201-3/+5
| | | | | | | | | | | | Support integration with new QAT products: Intel(R) C62x Chipset, or Atom(R) C3000 Processor Product Family SoC: 1. Detect new file name in auto-conf. 2. Change MAX_INSTANCES to 48. 3. Change "num_inst" to U16 to clean a build warning. Reviewed-by: George Melikov <[email protected]> Reviewed-by: Brian Behlendorf <[email protected]> Signed-off-by: Weigang Li <[email protected]> Closes #6767
* Change U16 to U32 due to atomic_inc_32_nvwli52017-04-251-2/+2
| | | | | | | | | After run a long time with QAT compression, the variable "inst_num" is overflow by "atomic_inc_32_nv", which causes its neighbor variable overwritten. Change its definition from U16 to U32. Reviewed-by: Brian Behlendorf <[email protected]> Signed-off-by: Weigang Li <[email protected]> Closes #6051
* GZIP compression offloading with QAT acceleratorwli52017-03-221-0/+585
This patch implement the hardware accelerator method in GZIP compression in ZFS. When the ZFS pool is enabled GZIP compression, the compression API will be automatically transferred to the hardware accelerator to free up CPU resource and speed up the compression time. * To enable Intel QAT hardware acceleration in ZOL you need to have QAT hardware and the driver installed: * QAT hardware DH8950: http://ark.intel.com/products/79483/Intel-QuickAssist-Adapter-8950 * QAT driver: https://01.org/intel-quickassist-technology * Start QAT driver in your system: service qat_service start * Enable QAT in ZFS, e.g.: ./configure --with-qat=<qat-driver-path>/QAT1.6 make * Set GZIP compression in ZFS dataset: zfs set compression = gzip <dataset> * Get QAT hardware statistics by: cat /proc/spl/kstat/zfs/qat * To disable QAT in ZFS: insmod zfs.ko zfs_qat_disable=1 Reviewed-by: Brian Behlendorf <[email protected]> Reviewed-by: Jinshan Xiong <[email protected]> Signed-off-by: Weigang Li <[email protected]> Closes #5846
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