Add zsda compressdev capabilities
Signed-off-by: Hanxiao Li <li.hanxiao@zte.com.cn>
---
doc/guides/compressdevs/features/zsda.ini | 9 ++++++
doc/guides/compressdevs/zsda.rst | 23 ++++++++++++++
doc/guides/rel_notes/release_25_03.rst | 7 +++++
drivers/compress/zsda/zsda_comp_pmd.c | 37 +++++++++++++++++++++++
4 files changed, 76 insertions(+)
--
2.27.0
@@ -4,3 +4,12 @@
; Supported features of 'ZSDA' compression driver.
;
[Features]
+HW Accelerated = Y
+OOP SGL In SGL Out = Y
+OOP SGL In LB Out = Y
+OOP LB In SGL Out = Y
+Deflate = Y
+Adler32 = Y
+Crc32 = Y
+Fixed = Y
+Dynamic = Y
@@ -13,6 +13,29 @@ support for the following hardware accelerator devices:
Features
--------
+ZSDA compression PMD has support for:
+
+Compression/Decompression algorithm:
+
+ * DEFLATE - using Fixed and Dynamic Huffman encoding
+
+Checksum generation:
+
+ * CRC32, Adler32
+
+Huffman code type:
+
+ * FIXED
+ * DYNAMIC
+
+
+Limitations
+-----------
+
+* Compressdev level 0, no compression, is not supported.
+* No BSD support as BSD ZSDA kernel driver not available.
+* Stateful is not supported.
+
Installation
------------
@@ -24,6 +24,13 @@ DPDK Release 25.03
New Features
------------
+* **Added ZTE Storage Data Accelerator(ZSDA) device driver.**
+
+ Added a new compress driver for ZSDA devices to support
+ the deflate compression and decompression algorithm.
+
+ See the :doc:`../compressdevs/zsda` guide for more details on the new driver.
+
.. This section should contain new features added in this release.
Sample format:
@@ -10,6 +10,20 @@
#include "zsda_comp_pmd.h"
#include "zsda_comp.h"
+static const struct rte_compressdev_capabilities zsda_comp_capabilities[] = {
+ {
+ .algo = RTE_COMP_ALGO_DEFLATE,
+ .comp_feature_flags = RTE_COMP_FF_HUFFMAN_DYNAMIC |
+ RTE_COMP_FF_OOP_SGL_IN_SGL_OUT |
+ RTE_COMP_FF_OOP_SGL_IN_LB_OUT |
+ RTE_COMP_FF_OOP_LB_IN_SGL_OUT |
+ RTE_COMP_FF_CRC32_CHECKSUM |
+ RTE_COMP_FF_ADLER32_CHECKSUM |
+ RTE_COMP_FF_SHAREABLE_PRIV_XFORM,
+ .window_size = {.min = 15, .max = 15, .increment = 0},
+ },
+};
+
static int
zsda_comp_xform_size(void)
{
@@ -321,8 +335,11 @@ zsda_comp_dev_create(struct zsda_pci_device *zsda_pci_dev)
};
char name[RTE_COMPRESSDEV_NAME_MAX_LEN];
+ char capa_memz_name[RTE_COMPRESSDEV_NAME_MAX_LEN];
struct rte_compressdev *compressdev;
struct zsda_comp_dev_private *comp_dev;
+ const struct rte_compressdev_capabilities *capabilities;
+ uint16_t capa_size = sizeof(struct rte_compressdev_capabilities);
snprintf(name, RTE_COMPRESSDEV_NAME_MAX_LEN, "%s_%s",
zsda_pci_dev->name, "comp");
@@ -352,6 +369,26 @@ zsda_comp_dev_create(struct zsda_pci_device *zsda_pci_dev)
comp_dev->zsda_pci_dev = zsda_pci_dev;
comp_dev->compressdev = compressdev;
+ capabilities = zsda_comp_capabilities;
+
+ snprintf(capa_memz_name, RTE_COMPRESSDEV_NAME_MAX_LEN,
+ "ZSDA_COMP_CAPA");
+ comp_dev->capa_mz = rte_memzone_lookup(capa_memz_name);
+ if (comp_dev->capa_mz == NULL)
+ comp_dev->capa_mz = rte_memzone_reserve(
+ capa_memz_name, capa_size, rte_socket_id(), 0);
+
+ if (comp_dev->capa_mz == NULL) {
+ ZSDA_LOG(DEBUG, "Failed! comp_dev->capa_mz is NULL");
+ memset(&dev_info->comp_rte_dev, 0,
+ sizeof(dev_info->comp_rte_dev));
+ rte_compressdev_pmd_destroy(compressdev);
+ return -EFAULT;
+ }
+
+ memcpy(comp_dev->capa_mz->addr, capabilities, capa_size);
+ comp_dev->zsda_dev_capabilities = comp_dev->capa_mz->addr;
+
zsda_pci_dev->comp_dev = comp_dev;
return ZSDA_SUCCESS;