diff options
| -rw-r--r-- | drivers/crypto/cavium/zip/zip_deflate.c | 10 | ||||
| -rw-r--r-- | drivers/crypto/cavium/zip/zip_inflate.c | 12 | ||||
| -rw-r--r-- | drivers/crypto/cavium/zip/zip_main.c | 234 | ||||
| -rw-r--r-- | drivers/crypto/cavium/zip/zip_main.h | 15 |
4 files changed, 271 insertions, 0 deletions
diff --git a/drivers/crypto/cavium/zip/zip_deflate.c b/drivers/crypto/cavium/zip/zip_deflate.c index b02789c09201..9a944b8c1e29 100644 --- a/drivers/crypto/cavium/zip/zip_deflate.c +++ b/drivers/crypto/cavium/zip/zip_deflate.c @@ -122,12 +122,19 @@ int zip_deflate(struct zip_operation *zip_ops, struct zip_state *s, /* Prepares zip command based on the input parameters */ prepare_zip_command(zip_ops, s, zip_cmd); + atomic64_add(zip_ops->input_len, &zip_dev->stats.comp_in_bytes); /* Loads zip command into command queues and rings door bell */ queue = zip_load_instr(zip_cmd, zip_dev); + /* Stats update for compression requests submitted */ + atomic64_inc(&zip_dev->stats.comp_req_submit); + while (!result_ptr->s.compcode) continue; + /* Stats update for compression requests completed */ + atomic64_inc(&zip_dev->stats.comp_req_complete); + zip_ops->compcode = result_ptr->s.compcode; switch (zip_ops->compcode) { case ZIP_CMD_NOTDONE: @@ -175,6 +182,9 @@ int zip_deflate(struct zip_operation *zip_ops, struct zip_state *s, zip_err("Unknown Format:%d\n", zip_ops->format); } + atomic64_add(result_ptr->s.totalbyteswritten, + &zip_dev->stats.comp_out_bytes); + /* Update output_len */ if (zip_ops->output_len < result_ptr->s.totalbyteswritten) { /* Dynamic stop && strm->output_len < zipconstants[onfsize] */ diff --git a/drivers/crypto/cavium/zip/zip_inflate.c b/drivers/crypto/cavium/zip/zip_inflate.c index 5f43a8cb982b..50cbdd83dbf2 100644 --- a/drivers/crypto/cavium/zip/zip_inflate.c +++ b/drivers/crypto/cavium/zip/zip_inflate.c @@ -135,12 +135,20 @@ int zip_inflate(struct zip_operation *zip_ops, struct zip_state *s, /* Prepare inflate zip command */ prepare_inflate_zcmd(zip_ops, s, zip_cmd); + atomic64_add(zip_ops->input_len, &zip_dev->stats.decomp_in_bytes); + /* Load inflate command to zip queue and ring the doorbell */ queue = zip_load_instr(zip_cmd, zip_dev); + /* Decompression requests submitted stats update */ + atomic64_inc(&zip_dev->stats.decomp_req_submit); + while (!result_ptr->s.compcode) continue; + /* Decompression requests completed stats update */ + atomic64_inc(&zip_dev->stats.decomp_req_complete); + zip_ops->compcode = result_ptr->s.compcode; switch (zip_ops->compcode) { case ZIP_CMD_NOTDONE: @@ -157,6 +165,7 @@ int zip_inflate(struct zip_operation *zip_ops, struct zip_state *s, default: zip_dbg("Instruction failed. Code = %d\n", zip_ops->compcode); + atomic64_inc(&zip_dev->stats.decomp_bad_reqs); zip_update_cmd_bufs(zip_dev, queue); return ZIP_ERROR; } @@ -169,6 +178,9 @@ int zip_inflate(struct zip_operation *zip_ops, struct zip_state *s, zip_ops->csum = result_ptr->s.adler32; + atomic64_add(result_ptr->s.totalbyteswritten, + &zip_dev->stats.decomp_out_bytes); + if (zip_ops->output_len < result_ptr->s.totalbyteswritten) { zip_err("output_len (%d) < total bytes written (%d)\n", zip_ops->output_len, result_ptr->s.totalbyteswritten); diff --git a/drivers/crypto/cavium/zip/zip_main.c b/drivers/crypto/cavium/zip/zip_main.c index dd5814a12c9a..0951e20b395b 100644 --- a/drivers/crypto/cavium/zip/zip_main.c +++ b/drivers/crypto/cavium/zip/zip_main.c @@ -451,6 +451,228 @@ static void zip_unregister_compression_device(void) crypto_unregister_scomp(&zip_scomp_lzs); } +/* + * debugfs functions + */ +#ifdef CONFIG_DEBUG_FS +#include <linux/debugfs.h> + +/* Displays ZIP device statistics */ +static int zip_show_stats(struct seq_file *s, void *unused) +{ + u64 val = 0ull; + u64 avg_chunk = 0ull, avg_cr = 0ull; + u32 q = 0; + + int index = 0; + struct zip_device *zip; + struct zip_stats *st; + + for (index = 0; index < MAX_ZIP_DEVICES; index++) { + if (zip_dev[index]) { + zip = zip_dev[index]; + st = &zip->stats; + + /* Get all the pending requests */ + for (q = 0; q < ZIP_NUM_QUEUES; q++) { + val = zip_reg_read((zip->reg_base + + ZIP_DBG_COREX_STA(q))); + val = (val >> 32); + val = val & 0xffffff; + atomic64_add(val, &st->pending_req); + } + + avg_chunk = (atomic64_read(&st->comp_in_bytes) / + atomic64_read(&st->comp_req_complete)); + avg_cr = (atomic64_read(&st->comp_in_bytes) / + atomic64_read(&st->comp_out_bytes)); + seq_printf(s, " ZIP Device %d Stats\n" + "-----------------------------------\n" + "Comp Req Submitted : \t%ld\n" + "Comp Req Completed : \t%ld\n" + "Compress In Bytes : \t%ld\n" + "Compressed Out Bytes : \t%ld\n" + "Average Chunk size : \t%llu\n" + "Average Compression ratio : \t%llu\n" + "Decomp Req Submitted : \t%ld\n" + "Decomp Req Completed : \t%ld\n" + "Decompress In Bytes : \t%ld\n" + "Decompressed Out Bytes : \t%ld\n" + "Decompress Bad requests : \t%ld\n" + "Pending Req : \t%ld\n" + "---------------------------------\n", + index, + atomic64_read(&st->comp_req_submit), + atomic64_read(&st->comp_req_complete), + atomic64_read(&st->comp_in_bytes), + atomic64_read(&st->comp_out_bytes), + avg_chunk, + avg_cr, + atomic64_read(&st->decomp_req_submit), + atomic64_read(&st->decomp_req_complete), + atomic64_read(&st->decomp_in_bytes), + atomic64_read(&st->decomp_out_bytes), + atomic64_read(&st->decomp_bad_reqs), + atomic64_read(&st->pending_req)); + + /* Reset pending requests count */ + atomic64_set(&st->pending_req, 0); + } + } + return 0; +} + +/* Clears stats data */ +static int zip_clear_stats(struct seq_file *s, void *unused) +{ + int index = 0; + + for (index = 0; index < MAX_ZIP_DEVICES; index++) { + if (zip_dev[index]) { + memset(&zip_dev[index]->stats, 0, + sizeof(struct zip_state)); + seq_printf(s, "Cleared stats for zip %d\n", index); + } + } + + return 0; +} + +static struct zip_registers zipregs[64] = { + {"ZIP_CMD_CTL ", 0x0000ull}, + {"ZIP_THROTTLE ", 0x0010ull}, + {"ZIP_CONSTANTS ", 0x00A0ull}, + {"ZIP_QUE0_MAP ", 0x1400ull}, + {"ZIP_QUE1_MAP ", 0x1408ull}, + {"ZIP_QUE_ENA ", 0x0500ull}, + {"ZIP_QUE_PRI ", 0x0508ull}, + {"ZIP_QUE0_DONE ", 0x2000ull}, + {"ZIP_QUE1_DONE ", 0x2008ull}, + {"ZIP_QUE0_DOORBELL ", 0x4000ull}, + {"ZIP_QUE1_DOORBELL ", 0x4008ull}, + {"ZIP_QUE0_SBUF_ADDR ", 0x1000ull}, + {"ZIP_QUE1_SBUF_ADDR ", 0x1008ull}, + {"ZIP_QUE0_SBUF_CTL ", 0x1200ull}, + {"ZIP_QUE1_SBUF_CTL ", 0x1208ull}, + { NULL, 0} +}; + +/* Prints registers' contents */ +static int zip_print_regs(struct seq_file *s, void *unused) +{ + u64 val = 0; + int i = 0, index = 0; + + for (index = 0; index < MAX_ZIP_DEVICES; index++) { + if (zip_dev[index]) { + seq_printf(s, "--------------------------------\n" + " ZIP Device %d Registers\n" + "--------------------------------\n", + index); + + i = 0; + + while (zipregs[i].reg_name) { + val = zip_reg_read((zip_dev[index]->reg_base + + zipregs[i].reg_offset)); + seq_printf(s, "%s: 0x%016llx\n", + zipregs[i].reg_name, val); + i++; + } + } + } + return 0; +} + +static int zip_stats_open(struct inode *inode, struct file *file) +{ + return single_open(file, zip_show_stats, NULL); +} + +static const struct file_operations zip_stats_fops = { + .owner = THIS_MODULE, + .open = zip_stats_open, + .read = seq_read, +}; + +static int zip_clear_open(struct inode *inode, struct file *file) +{ + return single_open(file, zip_clear_stats, NULL); +} + +static const struct file_operations zip_clear_fops = { + .owner = THIS_MODULE, + .open = zip_clear_open, + .read = seq_read, +}; + +static int zip_regs_open(struct inode *inode, struct file *file) +{ + return single_open(file, zip_print_regs, NULL); +} + +static const struct file_operations zip_regs_fops = { + .owner = THIS_MODULE, + .open = zip_regs_open, + .read = seq_read, +}; + +/* Root directory for thunderx_zip debugfs entry */ +static struct dentry *zip_debugfs_root; + +static int __init zip_debugfs_init(void) +{ + struct dentry *zip_stats, *zip_clear, *zip_regs; + + if (!debugfs_initialized()) + return -ENODEV; + + zip_debugfs_root = debugfs_create_dir("thunderx_zip", NULL); + if (!zip_debugfs_root) + return -ENOMEM; + + /* Creating files for entries inside thunderx_zip directory */ + zip_stats = debugfs_create_file("zip_stats", 0444, + zip_debugfs_root, + NULL, &zip_stats_fops); + if (!zip_stats) + goto failed_to_create; + + zip_clear = debugfs_create_file("zip_clear", 0444, + zip_debugfs_root, + NULL, &zip_clear_fops); + if (!zip_clear) + goto failed_to_create; + + zip_regs = debugfs_create_file("zip_regs", 0444, + zip_debugfs_root, + NULL, &zip_regs_fops); + if (!zip_regs) + goto failed_to_create; + + return 0; + +failed_to_create: + debugfs_remove_recursive(zip_debugfs_root); + return -ENOENT; +} + +static void __exit zip_debugfs_exit(void) +{ + debugfs_remove_recursive(zip_debugfs_root); +} + +#else +static int __init zip_debugfs_init(void) +{ + return 0; +} + +static void __exit zip_debugfs_exit(void) { } + +#endif +/* debugfs - end */ + static int __init zip_init_module(void) { int ret; @@ -470,8 +692,18 @@ static int __init zip_init_module(void) goto err_pci_unregister; } + /* comp-decomp statistics are handled with debugfs interface */ + ret = zip_debugfs_init(); + if (ret < 0) { + zip_err("ZIP: debugfs initialization failed\n"); + goto err_crypto_unregister; + } + return ret; +err_crypto_unregister: + zip_unregister_compression_device(); + err_pci_unregister: pci_unregister_driver(&zip_driver); return ret; @@ -479,6 +711,8 @@ err_pci_unregister: static void __exit zip_cleanup_module(void) { + zip_debugfs_exit(); + /* Unregister from the kernel crypto interface */ zip_unregister_compression_device(); diff --git a/drivers/crypto/cavium/zip/zip_main.h b/drivers/crypto/cavium/zip/zip_main.h index 1775c77d2a48..64e051f60784 100644 --- a/drivers/crypto/cavium/zip/zip_main.h +++ b/drivers/crypto/cavium/zip/zip_main.h @@ -68,6 +68,20 @@ struct zip_registers { u64 reg_offset; }; +/* ZIP Compression - Decompression stats */ +struct zip_stats { + atomic64_t comp_req_submit; + atomic64_t comp_req_complete; + atomic64_t decomp_req_submit; + atomic64_t decomp_req_complete; + atomic64_t pending_req; + atomic64_t comp_in_bytes; + atomic64_t comp_out_bytes; + atomic64_t decomp_in_bytes; + atomic64_t decomp_out_bytes; + atomic64_t decomp_bad_reqs; +}; + /* ZIP Instruction Queue */ struct zip_iq { u64 *sw_head; @@ -93,6 +107,7 @@ struct zip_device { u64 ctxsize; struct zip_iq iq[ZIP_MAX_NUM_QUEUES]; + struct zip_stats stats; }; /* Prototypes */ |
