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-rw-r--r--drivers/net/bnx2.c117
-rw-r--r--drivers/net/bnx2.h36
2 files changed, 107 insertions, 46 deletions
diff --git a/drivers/net/bnx2.c b/drivers/net/bnx2.c
index 0d592f7c3a99..03c47cf04e90 100644
--- a/drivers/net/bnx2.c
+++ b/drivers/net/bnx2.c
@@ -360,6 +360,8 @@ bnx2_netif_start(struct bnx2 *bp)
static void
bnx2_free_mem(struct bnx2 *bp)
{
+ int i;
+
if (bp->stats_blk) {
pci_free_consistent(bp->pdev, sizeof(struct statistics_block),
bp->stats_blk, bp->stats_blk_mapping);
@@ -378,19 +380,23 @@ bnx2_free_mem(struct bnx2 *bp)
}
kfree(bp->tx_buf_ring);
bp->tx_buf_ring = NULL;
- if (bp->rx_desc_ring) {
- pci_free_consistent(bp->pdev,
- sizeof(struct rx_bd) * RX_DESC_CNT,
- bp->rx_desc_ring, bp->rx_desc_mapping);
- bp->rx_desc_ring = NULL;
- }
- kfree(bp->rx_buf_ring);
+ for (i = 0; i < bp->rx_max_ring; i++) {
+ if (bp->rx_desc_ring[i])
+ pci_free_consistent(bp->pdev,
+ sizeof(struct rx_bd) * RX_DESC_CNT,
+ bp->rx_desc_ring[i],
+ bp->rx_desc_mapping[i]);
+ bp->rx_desc_ring[i] = NULL;
+ }
+ vfree(bp->rx_buf_ring);
bp->rx_buf_ring = NULL;
}
static int
bnx2_alloc_mem(struct bnx2 *bp)
{
+ int i;
+
bp->tx_buf_ring = kmalloc(sizeof(struct sw_bd) * TX_DESC_CNT,
GFP_KERNEL);
if (bp->tx_buf_ring == NULL)
@@ -404,18 +410,23 @@ bnx2_alloc_mem(struct bnx2 *bp)
if (bp->tx_desc_ring == NULL)
goto alloc_mem_err;
- bp->rx_buf_ring = kmalloc(sizeof(struct sw_bd) * RX_DESC_CNT,
- GFP_KERNEL);
+ bp->rx_buf_ring = vmalloc(sizeof(struct sw_bd) * RX_DESC_CNT *
+ bp->rx_max_ring);
if (bp->rx_buf_ring == NULL)
goto alloc_mem_err;
- memset(bp->rx_buf_ring, 0, sizeof(struct sw_bd) * RX_DESC_CNT);
- bp->rx_desc_ring = pci_alloc_consistent(bp->pdev,
- sizeof(struct rx_bd) *
- RX_DESC_CNT,
- &bp->rx_desc_mapping);
- if (bp->rx_desc_ring == NULL)
- goto alloc_mem_err;
+ memset(bp->rx_buf_ring, 0, sizeof(struct sw_bd) * RX_DESC_CNT *
+ bp->rx_max_ring);
+
+ for (i = 0; i < bp->rx_max_ring; i++) {
+ bp->rx_desc_ring[i] =
+ pci_alloc_consistent(bp->pdev,
+ sizeof(struct rx_bd) * RX_DESC_CNT,
+ &bp->rx_desc_mapping[i]);
+ if (bp->rx_desc_ring[i] == NULL)
+ goto alloc_mem_err;
+
+ }
bp->status_blk = pci_alloc_consistent(bp->pdev,
sizeof(struct status_block),
@@ -1520,7 +1531,7 @@ bnx2_alloc_rx_skb(struct bnx2 *bp, u16 index)
struct sk_buff *skb;
struct sw_bd *rx_buf = &bp->rx_buf_ring[index];
dma_addr_t mapping;
- struct rx_bd *rxbd = &bp->rx_desc_ring[index];
+ struct rx_bd *rxbd = &bp->rx_desc_ring[RX_RING(index)][RX_IDX(index)];
unsigned long align;
skb = dev_alloc_skb(bp->rx_buf_size);
@@ -3349,24 +3360,32 @@ bnx2_init_rx_ring(struct bnx2 *bp)
bp->hw_rx_cons = 0;
bp->rx_prod_bseq = 0;
- rxbd = &bp->rx_desc_ring[0];
- for (i = 0; i < MAX_RX_DESC_CNT; i++, rxbd++) {
- rxbd->rx_bd_len = bp->rx_buf_use_size;
- rxbd->rx_bd_flags = RX_BD_FLAGS_START | RX_BD_FLAGS_END;
- }
+ for (i = 0; i < bp->rx_max_ring; i++) {
+ int j;
- rxbd->rx_bd_haddr_hi = (u64) bp->rx_desc_mapping >> 32;
- rxbd->rx_bd_haddr_lo = (u64) bp->rx_desc_mapping & 0xffffffff;
+ rxbd = &bp->rx_desc_ring[i][0];
+ for (j = 0; j < MAX_RX_DESC_CNT; j++, rxbd++) {
+ rxbd->rx_bd_len = bp->rx_buf_use_size;
+ rxbd->rx_bd_flags = RX_BD_FLAGS_START | RX_BD_FLAGS_END;
+ }
+ if (i == (bp->rx_max_ring - 1))
+ j = 0;
+ else
+ j = i + 1;
+ rxbd->rx_bd_haddr_hi = (u64) bp->rx_desc_mapping[j] >> 32;
+ rxbd->rx_bd_haddr_lo = (u64) bp->rx_desc_mapping[j] &
+ 0xffffffff;
+ }
val = BNX2_L2CTX_CTX_TYPE_CTX_BD_CHN_TYPE_VALUE;
val |= BNX2_L2CTX_CTX_TYPE_SIZE_L2;
val |= 0x02 << 8;
CTX_WR(bp, GET_CID_ADDR(RX_CID), BNX2_L2CTX_CTX_TYPE, val);
- val = (u64) bp->rx_desc_mapping >> 32;
+ val = (u64) bp->rx_desc_mapping[0] >> 32;
CTX_WR(bp, GET_CID_ADDR(RX_CID), BNX2_L2CTX_NX_BDHADDR_HI, val);
- val = (u64) bp->rx_desc_mapping & 0xffffffff;
+ val = (u64) bp->rx_desc_mapping[0] & 0xffffffff;
CTX_WR(bp, GET_CID_ADDR(RX_CID), BNX2_L2CTX_NX_BDHADDR_LO, val);
for (i = 0; i < bp->rx_ring_size; i++) {
@@ -3384,6 +3403,29 @@ bnx2_init_rx_ring(struct bnx2 *bp)
}
static void
+bnx2_set_rx_ring_size(struct bnx2 *bp, u32 size)
+{
+ u32 num_rings, max;
+
+ bp->rx_ring_size = size;
+ num_rings = 1;
+ while (size > MAX_RX_DESC_CNT) {
+ size -= MAX_RX_DESC_CNT;
+ num_rings++;
+ }
+ /* round to next power of 2 */
+ max = MAX_RX_RINGS;
+ while ((max & num_rings) == 0)
+ max >>= 1;
+
+ if (num_rings != max)
+ max <<= 1;
+
+ bp->rx_max_ring = max;
+ bp->rx_max_ring_idx = (bp->rx_max_ring * RX_DESC_CNT) - 1;
+}
+
+static void
bnx2_free_tx_skbs(struct bnx2 *bp)
{
int i;
@@ -3428,7 +3470,7 @@ bnx2_free_rx_skbs(struct bnx2 *bp)
if (bp->rx_buf_ring == NULL)
return;
- for (i = 0; i < RX_DESC_CNT; i++) {
+ for (i = 0; i < bp->rx_max_ring_idx; i++) {
struct sw_bd *rx_buf = &bp->rx_buf_ring[i];
struct sk_buff *skb = rx_buf->skb;
@@ -4792,7 +4834,7 @@ bnx2_get_ringparam(struct net_device *dev, struct ethtool_ringparam *ering)
{
struct bnx2 *bp = netdev_priv(dev);
- ering->rx_max_pending = MAX_RX_DESC_CNT;
+ ering->rx_max_pending = MAX_TOTAL_RX_DESC_CNT;
ering->rx_mini_max_pending = 0;
ering->rx_jumbo_max_pending = 0;
@@ -4809,17 +4851,28 @@ bnx2_set_ringparam(struct net_device *dev, struct ethtool_ringparam *ering)
{
struct bnx2 *bp = netdev_priv(dev);
- if ((ering->rx_pending > MAX_RX_DESC_CNT) ||
+ if ((ering->rx_pending > MAX_TOTAL_RX_DESC_CNT) ||
(ering->tx_pending > MAX_TX_DESC_CNT) ||
(ering->tx_pending <= MAX_SKB_FRAGS)) {
return -EINVAL;
}
- bp->rx_ring_size = ering->rx_pending;
+ if (netif_running(bp->dev)) {
+ bnx2_netif_stop(bp);
+ bnx2_reset_chip(bp, BNX2_DRV_MSG_CODE_RESET);
+ bnx2_free_skbs(bp);
+ bnx2_free_mem(bp);
+ }
+
+ bnx2_set_rx_ring_size(bp, ering->rx_pending);
bp->tx_ring_size = ering->tx_pending;
if (netif_running(bp->dev)) {
- bnx2_netif_stop(bp);
+ int rc;
+
+ rc = bnx2_alloc_mem(bp);
+ if (rc)
+ return rc;
bnx2_init_nic(bp);
bnx2_netif_start(bp);
}
@@ -5493,7 +5546,7 @@ bnx2_init_board(struct pci_dev *pdev, struct net_device *dev)
bp->mac_addr[5] = (u8) reg;
bp->tx_ring_size = MAX_TX_DESC_CNT;
- bp->rx_ring_size = 100;
+ bnx2_set_rx_ring_size(bp, 100);
bp->rx_csum = 1;
diff --git a/drivers/net/bnx2.h b/drivers/net/bnx2.h
index 9f691cbd666b..beb2e8bcc659 100644
--- a/drivers/net/bnx2.h
+++ b/drivers/net/bnx2.h
@@ -3792,8 +3792,10 @@ struct l2_fhdr {
#define TX_DESC_CNT (BCM_PAGE_SIZE / sizeof(struct tx_bd))
#define MAX_TX_DESC_CNT (TX_DESC_CNT - 1)
+#define MAX_RX_RINGS 4
#define RX_DESC_CNT (BCM_PAGE_SIZE / sizeof(struct rx_bd))
#define MAX_RX_DESC_CNT (RX_DESC_CNT - 1)
+#define MAX_TOTAL_RX_DESC_CNT (MAX_RX_DESC_CNT * MAX_RX_RINGS)
#define NEXT_TX_BD(x) (((x) & (MAX_TX_DESC_CNT - 1)) == \
(MAX_TX_DESC_CNT - 1)) ? \
@@ -3805,8 +3807,10 @@ struct l2_fhdr {
(MAX_RX_DESC_CNT - 1)) ? \
(x) + 2 : (x) + 1
-#define RX_RING_IDX(x) ((x) & MAX_RX_DESC_CNT)
+#define RX_RING_IDX(x) ((x) & bp->rx_max_ring_idx)
+#define RX_RING(x) (((x) & ~MAX_RX_DESC_CNT) >> 8)
+#define RX_IDX(x) ((x) & MAX_RX_DESC_CNT)
/* Context size. */
#define CTX_SHIFT 7
@@ -3903,6 +3907,15 @@ struct bnx2 {
struct status_block *status_blk;
u32 last_status_idx;
+ u32 flags;
+#define PCIX_FLAG 1
+#define PCI_32BIT_FLAG 2
+#define ONE_TDMA_FLAG 4 /* no longer used */
+#define NO_WOL_FLAG 8
+#define USING_DAC_FLAG 0x10
+#define USING_MSI_FLAG 0x20
+#define ASF_ENABLE_FLAG 0x40
+
struct tx_bd *tx_desc_ring;
struct sw_bd *tx_buf_ring;
u32 tx_prod_bseq;
@@ -3920,19 +3933,22 @@ struct bnx2 {
u32 rx_offset;
u32 rx_buf_use_size; /* useable size */
u32 rx_buf_size; /* with alignment */
- struct rx_bd *rx_desc_ring;
- struct sw_bd *rx_buf_ring;
+ u32 rx_max_ring_idx;
+
u32 rx_prod_bseq;
u16 rx_prod;
u16 rx_cons;
u32 rx_csum;
+ struct sw_bd *rx_buf_ring;
+ struct rx_bd *rx_desc_ring[MAX_RX_RINGS];
+
/* Only used to synchronize netif_stop_queue/wake_queue when tx */
/* ring is full */
spinlock_t tx_lock;
- /* End of fileds used in the performance code paths. */
+ /* End of fields used in the performance code paths. */
char *name;
@@ -3945,15 +3961,6 @@ struct bnx2 {
/* Used to synchronize phy accesses. */
spinlock_t phy_lock;
- u32 flags;
-#define PCIX_FLAG 1
-#define PCI_32BIT_FLAG 2
-#define ONE_TDMA_FLAG 4 /* no longer used */
-#define NO_WOL_FLAG 8
-#define USING_DAC_FLAG 0x10
-#define USING_MSI_FLAG 0x20
-#define ASF_ENABLE_FLAG 0x40
-
u32 phy_flags;
#define PHY_SERDES_FLAG 1
#define PHY_CRC_FIX_FLAG 2
@@ -4004,8 +4011,9 @@ struct bnx2 {
dma_addr_t tx_desc_mapping;
+ int rx_max_ring;
int rx_ring_size;
- dma_addr_t rx_desc_mapping;
+ dma_addr_t rx_desc_mapping[MAX_RX_RINGS];
u16 tx_quick_cons_trip;
u16 tx_quick_cons_trip_int;
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.