Date: Fri, 27 May 2016 21:26:26 +0000 (UTC) From: Navdeep Parhar <np@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r300875 - head/sys/dev/cxgbe/iw_cxgbe Message-ID: <201605272126.u4RLQQTu061783@repo.freebsd.org>
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Author: np Date: Fri May 27 21:26:26 2016 New Revision: 300875 URL: https://svnweb.freebsd.org/changeset/base/300875 Log: iw_cxgbe: Use vmem(9) to manage PBL and RQT allocations. Submitted by: Krishnamraju Eraparaju at Chelsio Reviewed by: Steve Wise Sponsored by: Chelsio Communications Modified: head/sys/dev/cxgbe/iw_cxgbe/iw_cxgbe.h head/sys/dev/cxgbe/iw_cxgbe/resource.c Modified: head/sys/dev/cxgbe/iw_cxgbe/iw_cxgbe.h ============================================================================== --- head/sys/dev/cxgbe/iw_cxgbe/iw_cxgbe.h Fri May 27 21:12:25 2016 (r300874) +++ head/sys/dev/cxgbe/iw_cxgbe/iw_cxgbe.h Fri May 27 21:26:26 2016 (r300875) @@ -45,6 +45,7 @@ #include <linux/kref.h> #include <linux/timer.h> #include <linux/io.h> +#include <sys/vmem.h> #include <asm/byteorder.h> @@ -144,8 +145,8 @@ struct c4iw_rdev { unsigned long cqshift; u32 cqmask; struct c4iw_dev_ucontext uctx; - struct gen_pool *pbl_pool; - struct gen_pool *rqt_pool; + vmem_t *rqt_arena; + vmem_t *pbl_arena; u32 flags; struct c4iw_stats stats; }; @@ -929,75 +930,6 @@ extern struct cxgb4_client t4c_client; extern c4iw_handler_func c4iw_handlers[NUM_CPL_CMDS]; extern int c4iw_max_read_depth; -#include <sys/blist.h> -struct gen_pool { - blist_t gen_list; - daddr_t gen_base; - int gen_chunk_shift; - struct mutex gen_lock; -}; - -static __inline struct gen_pool * -gen_pool_create(daddr_t base, u_int chunk_shift, u_int len) -{ - struct gen_pool *gp; - - gp = malloc(sizeof(struct gen_pool), M_DEVBUF, M_NOWAIT); - if (gp == NULL) - return (NULL); - - memset(gp, 0, sizeof(struct gen_pool)); - gp->gen_list = blist_create(len >> chunk_shift, M_NOWAIT); - if (gp->gen_list == NULL) { - free(gp, M_DEVBUF); - return (NULL); - } - blist_free(gp->gen_list, 0, len >> chunk_shift); - gp->gen_base = base; - gp->gen_chunk_shift = chunk_shift; - //mutex_init(&gp->gen_lock, "genpool", NULL, MTX_DUPOK|MTX_DEF); - mutex_init(&gp->gen_lock); - - return (gp); -} - -static __inline unsigned long -gen_pool_alloc(struct gen_pool *gp, int size) -{ - int chunks; - daddr_t blkno; - - chunks = (size + (1<<gp->gen_chunk_shift) - 1) >> gp->gen_chunk_shift; - mutex_lock(&gp->gen_lock); - blkno = blist_alloc(gp->gen_list, chunks); - mutex_unlock(&gp->gen_lock); - - if (blkno == SWAPBLK_NONE) - return (0); - - return (gp->gen_base + ((1 << gp->gen_chunk_shift) * blkno)); -} - -static __inline void -gen_pool_free(struct gen_pool *gp, daddr_t address, int size) -{ - int chunks; - daddr_t blkno; - - chunks = (size + (1<<gp->gen_chunk_shift) - 1) >> gp->gen_chunk_shift; - blkno = (address - gp->gen_base) / (1 << gp->gen_chunk_shift); - mutex_lock(&gp->gen_lock); - blist_free(gp->gen_list, blkno, chunks); - mutex_unlock(&gp->gen_lock); -} - -static __inline void -gen_pool_destroy(struct gen_pool *gp) -{ - blist_destroy(gp->gen_list); - free(gp, M_DEVBUF); -} - #if defined(__i386__) || defined(__amd64__) #define L1_CACHE_BYTES 128 #else Modified: head/sys/dev/cxgbe/iw_cxgbe/resource.c ============================================================================== --- head/sys/dev/cxgbe/iw_cxgbe/resource.c Fri May 27 21:12:25 2016 (r300874) +++ head/sys/dev/cxgbe/iw_cxgbe/resource.c Fri May 27 21:26:26 2016 (r300875) @@ -248,13 +248,17 @@ void c4iw_destroy_resource(struct c4iw_r c4iw_id_table_free(&rscp->pdid_table); } -/* PBL Memory Manager. Uses Linux generic allocator. */ +/* PBL Memory Manager. */ -#define MIN_PBL_SHIFT 8 /* 256B == min PBL size (32 entries) */ +#define MIN_PBL_SHIFT 5 /* 32B == min PBL size (4 entries) */ u32 c4iw_pblpool_alloc(struct c4iw_rdev *rdev, int size) { - unsigned long addr = gen_pool_alloc(rdev->pbl_pool, size); + unsigned long addr; + + vmem_xalloc(rdev->pbl_arena, roundup(size, (1 << MIN_PBL_SHIFT)), + 4, 0, 0, VMEM_ADDR_MIN, VMEM_ADDR_MAX, + M_FIRSTFIT|M_NOWAIT, &addr); CTR3(KTR_IW_CXGBE, "%s addr 0x%x size %d", __func__, (u32)addr, size); mutex_lock(&rdev->stats.lock); if (addr) { @@ -273,15 +277,16 @@ void c4iw_pblpool_free(struct c4iw_rdev mutex_lock(&rdev->stats.lock); rdev->stats.pbl.cur -= roundup(size, 1 << MIN_PBL_SHIFT); mutex_unlock(&rdev->stats.lock); - gen_pool_free(rdev->pbl_pool, (unsigned long)addr, size); + vmem_xfree(rdev->pbl_arena, addr, roundup(size,(1 << MIN_PBL_SHIFT))); } int c4iw_pblpool_create(struct c4iw_rdev *rdev) { - rdev->pbl_pool = gen_pool_create(rdev->adap->vres.pbl.start, - MIN_PBL_SHIFT, - rdev->adap->vres.pbl.size); - if (!rdev->pbl_pool) + rdev->pbl_arena = vmem_create("PBL_MEM_POOL", + rdev->adap->vres.pbl.start, + rdev->adap->vres.pbl.size, + 1, 0, M_FIRSTFIT| M_NOWAIT); + if (!rdev->pbl_arena) return -ENOMEM; return 0; @@ -289,16 +294,21 @@ int c4iw_pblpool_create(struct c4iw_rdev void c4iw_pblpool_destroy(struct c4iw_rdev *rdev) { - gen_pool_destroy(rdev->pbl_pool); + vmem_destroy(rdev->pbl_arena); } -/* RQT Memory Manager. Uses Linux generic allocator. */ +/* RQT Memory Manager. */ #define MIN_RQT_SHIFT 10 /* 1KB == min RQT size (16 entries) */ u32 c4iw_rqtpool_alloc(struct c4iw_rdev *rdev, int size) { - unsigned long addr = gen_pool_alloc(rdev->rqt_pool, size << 6); + unsigned long addr; + + vmem_xalloc(rdev->rqt_arena, + roundup((size << 6),(1 << MIN_RQT_SHIFT)), + 4, 0, 0, VMEM_ADDR_MIN, VMEM_ADDR_MAX, + M_FIRSTFIT|M_NOWAIT, &addr); CTR3(KTR_IW_CXGBE, "%s addr 0x%x size %d", __func__, (u32)addr, size << 6); if (!addr) @@ -321,15 +331,17 @@ void c4iw_rqtpool_free(struct c4iw_rdev mutex_lock(&rdev->stats.lock); rdev->stats.rqt.cur -= roundup(size << 6, 1 << MIN_RQT_SHIFT); mutex_unlock(&rdev->stats.lock); - gen_pool_free(rdev->rqt_pool, (unsigned long)addr, size << 6); + vmem_xfree(rdev->rqt_arena, addr, + roundup((size << 6),(1 << MIN_RQT_SHIFT))); } int c4iw_rqtpool_create(struct c4iw_rdev *rdev) { - rdev->rqt_pool = gen_pool_create(rdev->adap->vres.rq.start, - MIN_RQT_SHIFT, - rdev->adap->vres.rq.size); - if (!rdev->rqt_pool) + rdev->rqt_arena = vmem_create("RQT_MEM_POOL", + rdev->adap->vres.rq.start, + rdev->adap->vres.rq.size, + 1, 0, M_FIRSTFIT| M_NOWAIT); + if (!rdev->rqt_arena) return -ENOMEM; return 0; @@ -337,6 +349,6 @@ int c4iw_rqtpool_create(struct c4iw_rdev void c4iw_rqtpool_destroy(struct c4iw_rdev *rdev) { - gen_pool_destroy(rdev->rqt_pool); + vmem_destroy(rdev->rqt_arena); } #endif
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