diff options
| -rw-r--r-- | drivers/net/ethernet/marvell/Kconfig | 1 | ||||
| -rw-r--r-- | drivers/net/ethernet/marvell/mvneta.c | 18 | ||||
| -rw-r--r-- | drivers/net/ethernet/marvell/mvneta_bm.c | 125 | ||||
| -rw-r--r-- | drivers/net/ethernet/marvell/mvneta_bm.h | 17 |
4 files changed, 49 insertions, 112 deletions
diff --git a/drivers/net/ethernet/marvell/Kconfig b/drivers/net/ethernet/marvell/Kconfig index ac6605c62f46..62d80fddbe34 100644 --- a/drivers/net/ethernet/marvell/Kconfig +++ b/drivers/net/ethernet/marvell/Kconfig @@ -43,6 +43,7 @@ config MVMDIO config MVNETA_BM tristate "Marvell Armada 38x/XP network interface BM support" depends on MVNETA + select HWBM ---help--- This driver supports auxiliary block of the network interface units in the Marvell ARMADA XP and ARMADA 38x SoC diff --git a/drivers/net/ethernet/marvell/mvneta.c b/drivers/net/ethernet/marvell/mvneta.c index 2847c0c291de..3d8e7d357ec9 100644 --- a/drivers/net/ethernet/marvell/mvneta.c +++ b/drivers/net/ethernet/marvell/mvneta.c @@ -30,6 +30,7 @@ #include <linux/phy.h> #include <linux/platform_device.h> #include <linux/skbuff.h> +#include <net/hwbm.h> #include "mvneta_bm.h" #include <net/ip.h> #include <net/ipv6.h> @@ -1026,11 +1027,12 @@ static int mvneta_bm_port_init(struct platform_device *pdev, static void mvneta_bm_update_mtu(struct mvneta_port *pp, int mtu) { struct mvneta_bm_pool *bm_pool = pp->pool_long; + struct hwbm_pool *hwbm_pool = &bm_pool->hwbm_pool; int num; /* Release all buffers from long pool */ mvneta_bm_bufs_free(pp->bm_priv, bm_pool, 1 << pp->id); - if (bm_pool->buf_num) { + if (hwbm_pool->buf_num) { WARN(1, "cannot free all buffers in pool %d\n", bm_pool->id); goto bm_mtu_err; @@ -1038,14 +1040,14 @@ static void mvneta_bm_update_mtu(struct mvneta_port *pp, int mtu) bm_pool->pkt_size = MVNETA_RX_PKT_SIZE(mtu); bm_pool->buf_size = MVNETA_RX_BUF_SIZE(bm_pool->pkt_size); - bm_pool->frag_size = SKB_DATA_ALIGN(sizeof(struct skb_shared_info)) + - SKB_DATA_ALIGN(MVNETA_RX_BUF_SIZE(bm_pool->pkt_size)); + hwbm_pool->frag_size = SKB_DATA_ALIGN(sizeof(struct skb_shared_info)) + + SKB_DATA_ALIGN(MVNETA_RX_BUF_SIZE(bm_pool->pkt_size)); /* Fill entire long pool */ - num = mvneta_bm_bufs_add(pp->bm_priv, bm_pool, bm_pool->size); - if (num != bm_pool->size) { + num = hwbm_pool_add(hwbm_pool, hwbm_pool->size, GFP_ATOMIC); + if (num != hwbm_pool->size) { WARN(1, "pool %d: %d of %d allocated\n", - bm_pool->id, num, bm_pool->size); + bm_pool->id, num, hwbm_pool->size); goto bm_mtu_err; } mvneta_bm_pool_bufsize_set(pp, bm_pool->buf_size, bm_pool->id); @@ -2066,14 +2068,14 @@ err_drop_frame: } /* Refill processing */ - err = mvneta_bm_pool_refill(pp->bm_priv, bm_pool); + err = hwbm_pool_refill(&bm_pool->hwbm_pool, GFP_ATOMIC); if (err) { netdev_err(dev, "Linux processing - Can't refill\n"); rxq->missed++; goto err_drop_frame_ret_pool; } - frag_size = bm_pool->frag_size; + frag_size = bm_pool->hwbm_pool.frag_size; skb = build_skb(data, frag_size > PAGE_SIZE ? 0 : frag_size); diff --git a/drivers/net/ethernet/marvell/mvneta_bm.c b/drivers/net/ethernet/marvell/mvneta_bm.c index 8c968e7d2d8f..01fccec632ec 100644 --- a/drivers/net/ethernet/marvell/mvneta_bm.c +++ b/drivers/net/ethernet/marvell/mvneta_bm.c @@ -10,16 +10,17 @@ * warranty of any kind, whether express or implied. */ -#include <linux/kernel.h> +#include <linux/clk.h> #include <linux/genalloc.h> -#include <linux/platform_device.h> -#include <linux/netdevice.h> -#include <linux/skbuff.h> +#include <linux/io.h> +#include <linux/kernel.h> #include <linux/mbus.h> #include <linux/module.h> -#include <linux/io.h> +#include <linux/netdevice.h> #include <linux/of.h> -#include <linux/clk.h> +#include <linux/platform_device.h> +#include <linux/skbuff.h> +#include <net/hwbm.h> #include "mvneta_bm.h" #define MVNETA_BM_DRIVER_NAME "mvneta_bm" @@ -88,17 +89,13 @@ static void mvneta_bm_pool_target_set(struct mvneta_bm *priv, int pool_id, mvneta_bm_write(priv, MVNETA_BM_XBAR_POOL_REG(pool_id), val); } -/* Allocate skb for BM pool */ -void *mvneta_buf_alloc(struct mvneta_bm *priv, struct mvneta_bm_pool *bm_pool, - dma_addr_t *buf_phys_addr) +int mvneta_bm_construct(struct hwbm_pool *hwbm_pool, void *buf) { - void *buf; + struct mvneta_bm_pool *bm_pool = + (struct mvneta_bm_pool *)hwbm_pool->priv; + struct mvneta_bm *priv = bm_pool->priv; dma_addr_t phys_addr; - buf = mvneta_frag_alloc(bm_pool->frag_size); - if (!buf) - return NULL; - /* In order to update buf_cookie field of RX descriptor properly, * BM hardware expects buf virtual address to be placed in the * first four bytes of mapped buffer. @@ -106,75 +103,13 @@ void *mvneta_buf_alloc(struct mvneta_bm *priv, struct mvneta_bm_pool *bm_pool, *(u32 *)buf = (u32)buf; phys_addr = dma_map_single(&priv->pdev->dev, buf, bm_pool->buf_size, DMA_FROM_DEVICE); - if (unlikely(dma_mapping_error(&priv->pdev->dev, phys_addr))) { - mvneta_frag_free(bm_pool->frag_size, buf); - return NULL; - } - *buf_phys_addr = phys_addr; - - return buf; -} - -/* Refill processing for HW buffer management */ -int mvneta_bm_pool_refill(struct mvneta_bm *priv, - struct mvneta_bm_pool *bm_pool) -{ - dma_addr_t buf_phys_addr; - void *buf; - - buf = mvneta_buf_alloc(priv, bm_pool, &buf_phys_addr); - if (!buf) + if (unlikely(dma_mapping_error(&priv->pdev->dev, phys_addr))) return -ENOMEM; - mvneta_bm_pool_put_bp(priv, bm_pool, buf_phys_addr); - + mvneta_bm_pool_put_bp(priv, bm_pool, phys_addr); return 0; } -EXPORT_SYMBOL_GPL(mvneta_bm_pool_refill); - -/* Allocate buffers for the pool */ -int mvneta_bm_bufs_add(struct mvneta_bm *priv, struct mvneta_bm_pool *bm_pool, - int buf_num) -{ - int err, i; - - if (bm_pool->buf_num == bm_pool->size) { - dev_dbg(&priv->pdev->dev, "pool %d already filled\n", - bm_pool->id); - return bm_pool->buf_num; - } - - if (buf_num < 0 || - (buf_num + bm_pool->buf_num > bm_pool->size)) { - dev_err(&priv->pdev->dev, - "cannot allocate %d buffers for pool %d\n", - buf_num, bm_pool->id); - return 0; - } - - for (i = 0; i < buf_num; i++) { - err = mvneta_bm_pool_refill(priv, bm_pool); - if (err < 0) - break; - } - - /* Update BM driver with number of buffers added to pool */ - bm_pool->buf_num += i; - - dev_dbg(&priv->pdev->dev, - "%s pool %d: pkt_size=%4d, buf_size=%4d, frag_size=%4d\n", - bm_pool->type == MVNETA_BM_SHORT ? "short" : "long", - bm_pool->id, bm_pool->pkt_size, bm_pool->buf_size, - bm_pool->frag_size); - - dev_dbg(&priv->pdev->dev, - "%s pool %d: %d of %d buffers added\n", - bm_pool->type == MVNETA_BM_SHORT ? "short" : "long", - bm_pool->id, i, buf_num); - - return i; -} -EXPORT_SYMBOL_GPL(mvneta_bm_bufs_add); +EXPORT_SYMBOL_GPL(mvneta_bm_construct); /* Create pool */ static int mvneta_bm_pool_create(struct mvneta_bm *priv, @@ -183,8 +118,7 @@ static int mvneta_bm_pool_create(struct mvneta_bm *priv, struct platform_device *pdev = priv->pdev; u8 target_id, attr; int size_bytes, err; - - size_bytes = sizeof(u32) * bm_pool->size; + size_bytes = sizeof(u32) * bm_pool->hwbm_pool.size; bm_pool->virt_addr = dma_alloc_coherent(&pdev->dev, size_bytes, &bm_pool->phys_addr, GFP_KERNEL); @@ -245,11 +179,16 @@ struct mvneta_bm_pool *mvneta_bm_pool_use(struct mvneta_bm *priv, u8 pool_id, /* Allocate buffers in case BM pool hasn't been used yet */ if (new_pool->type == MVNETA_BM_FREE) { + struct hwbm_pool *hwbm_pool = &new_pool->hwbm_pool; + + new_pool->priv = priv; new_pool->type = type; new_pool->buf_size = MVNETA_RX_BUF_SIZE(new_pool->pkt_size); - new_pool->frag_size = + hwbm_pool->frag_size = SKB_DATA_ALIGN(MVNETA_RX_BUF_SIZE(new_pool->pkt_size)) + SKB_DATA_ALIGN(sizeof(struct skb_shared_info)); + hwbm_pool->construct = mvneta_bm_construct; + hwbm_pool->priv = new_pool; /* Create new pool */ err = mvneta_bm_pool_create(priv, new_pool); @@ -260,10 +199,10 @@ struct mvneta_bm_pool *mvneta_bm_pool_use(struct mvneta_bm *priv, u8 pool_id, } /* Allocate buffers for this pool */ - num = mvneta_bm_bufs_add(priv, new_pool, new_pool->size); - if (num != new_pool->size) { + num = hwbm_pool_add(hwbm_pool, hwbm_pool->size, GFP_ATOMIC); + if (num != hwbm_pool->size) { WARN(1, "pool %d: %d of %d allocated\n", - new_pool->id, num, new_pool->size); + new_pool->id, num, hwbm_pool->size); return NULL; } } @@ -284,7 +223,7 @@ void mvneta_bm_bufs_free(struct mvneta_bm *priv, struct mvneta_bm_pool *bm_pool, mvneta_bm_config_set(priv, MVNETA_BM_EMPTY_LIMIT_MASK); - for (i = 0; i < bm_pool->buf_num; i++) { + for (i = 0; i < bm_pool->hwbm_pool.buf_num; i++) { dma_addr_t buf_phys_addr; u32 *vaddr; @@ -303,13 +242,13 @@ void mvneta_bm_bufs_free(struct mvneta_bm *priv, struct mvneta_bm_pool *bm_pool, dma_unmap_single(&priv->pdev->dev, buf_phys_addr, bm_pool->buf_size, DMA_FROM_DEVICE); - mvneta_frag_free(bm_pool->frag_size, vaddr); + hwbm_buf_free(&bm_pool->hwbm_pool, vaddr); } mvneta_bm_config_clear(priv, MVNETA_BM_EMPTY_LIMIT_MASK); /* Update BM driver with number of buffers removed from pool */ - bm_pool->buf_num -= i; + bm_pool->hwbm_pool.buf_num -= i; } EXPORT_SYMBOL_GPL(mvneta_bm_bufs_free); @@ -317,6 +256,7 @@ EXPORT_SYMBOL_GPL(mvneta_bm_bufs_free); void mvneta_bm_pool_destroy(struct mvneta_bm *priv, struct mvneta_bm_pool *bm_pool, u8 port_map) { + struct hwbm_pool *hwbm_pool = &bm_pool->hwbm_pool; bm_pool->port_map &= ~port_map; if (bm_pool->port_map) return; @@ -324,11 +264,12 @@ void mvneta_bm_pool_destroy(struct mvneta_bm *priv, bm_pool->type = MVNETA_BM_FREE; mvneta_bm_bufs_free(priv, bm_pool, port_map); - if (bm_pool->buf_num) + if (hwbm_pool->buf_num) WARN(1, "cannot free all buffers in pool %d\n", bm_pool->id); if (bm_pool->virt_addr) { - dma_free_coherent(&priv->pdev->dev, sizeof(u32) * bm_pool->size, + dma_free_coherent(&priv->pdev->dev, + sizeof(u32) * hwbm_pool->size, bm_pool->virt_addr, bm_pool->phys_addr); bm_pool->virt_addr = NULL; } @@ -381,10 +322,10 @@ static void mvneta_bm_pools_init(struct mvneta_bm *priv) MVNETA_BM_POOL_CAP_ALIGN)); size = ALIGN(size, MVNETA_BM_POOL_CAP_ALIGN); } - bm_pool->size = size; + bm_pool->hwbm_pool.size = size; mvneta_bm_write(priv, MVNETA_BM_POOL_SIZE_REG(i), - bm_pool->size); + bm_pool->hwbm_pool.size); /* Obtain custom pkt_size from DT */ sprintf(prop, "pool%d,pkt-size", i); diff --git a/drivers/net/ethernet/marvell/mvneta_bm.h b/drivers/net/ethernet/marvell/mvneta_bm.h index db239e061ab0..e74fd44a92f7 100644 --- a/drivers/net/ethernet/marvell/mvneta_bm.h +++ b/drivers/net/ethernet/marvell/mvneta_bm.h @@ -108,20 +108,15 @@ struct mvneta_bm { }; struct mvneta_bm_pool { + struct hwbm_pool hwbm_pool; /* Pool number in the range 0-3 */ u8 id; enum mvneta_bm_type type; - /* Buffer Pointers Pool External (BPPE) size in number of bytes */ - int size; - /* Number of buffers used by this pool */ - int buf_num; - /* Pool buffer size */ - int buf_size; /* Packet size */ int pkt_size; - /* Single frag size */ - u32 frag_size; + /* Size of the buffer acces through DMA*/ + u32 buf_size; /* BPPE virtual base address */ u32 *virt_addr; @@ -143,8 +138,7 @@ void mvneta_bm_pool_destroy(struct mvneta_bm *priv, struct mvneta_bm_pool *bm_pool, u8 port_map); void mvneta_bm_bufs_free(struct mvneta_bm *priv, struct mvneta_bm_pool *bm_pool, u8 port_map); -int mvneta_bm_bufs_add(struct mvneta_bm *priv, struct mvneta_bm_pool *bm_pool, - int buf_num); +int mvneta_bm_construct(struct hwbm_pool *hwbm_pool, void *buf); int mvneta_bm_pool_refill(struct mvneta_bm *priv, struct mvneta_bm_pool *bm_pool); struct mvneta_bm_pool *mvneta_bm_pool_use(struct mvneta_bm *priv, u8 pool_id, @@ -170,8 +164,7 @@ void mvneta_bm_pool_destroy(struct mvneta_bm *priv, struct mvneta_bm_pool *bm_pool, u8 port_map) {} void mvneta_bm_bufs_free(struct mvneta_bm *priv, struct mvneta_bm_pool *bm_pool, u8 port_map) {} -int mvneta_bm_bufs_add(struct mvneta_bm *priv, struct mvneta_bm_pool *bm_pool, - int buf_num) { return 0; } +int mvneta_bm_construct(struct hwbm_pool *hwbm_pool, void *buf) { return 0; } int mvneta_bm_pool_refill(struct mvneta_bm *priv, struct mvneta_bm_pool *bm_pool) {return 0; } struct mvneta_bm_pool *mvneta_bm_pool_use(struct mvneta_bm *priv, u8 pool_id, |