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Diffstat (limited to 'drivers/net/ethernet/mellanox/mlx4')
-rw-r--r--drivers/net/ethernet/mellanox/mlx4/cmd.c11
-rw-r--r--drivers/net/ethernet/mellanox/mlx4/en_netdev.c5
-rw-r--r--drivers/net/ethernet/mellanox/mlx4/en_rx.c24
-rw-r--r--drivers/net/ethernet/mellanox/mlx4/en_tx.c36
-rw-r--r--drivers/net/ethernet/mellanox/mlx4/eq.c32
-rw-r--r--drivers/net/ethernet/mellanox/mlx4/fw.c10
-rw-r--r--drivers/net/ethernet/mellanox/mlx4/main.c130
-rw-r--r--drivers/net/ethernet/mellanox/mlx4/mcg.c38
-rw-r--r--drivers/net/ethernet/mellanox/mlx4/mlx4.h10
-rw-r--r--drivers/net/ethernet/mellanox/mlx4/mlx4_en.h7
-rw-r--r--drivers/net/ethernet/mellanox/mlx4/mr.c84
-rw-r--r--drivers/net/ethernet/mellanox/mlx4/port.c80
-rw-r--r--drivers/net/ethernet/mellanox/mlx4/profile.c19
13 files changed, 259 insertions, 227 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx4/cmd.c b/drivers/net/ethernet/mellanox/mlx4/cmd.c
index eaf09d4f02d..773c70ea3f6 100644
--- a/drivers/net/ethernet/mellanox/mlx4/cmd.c
+++ b/drivers/net/ethernet/mellanox/mlx4/cmd.c
@@ -239,6 +239,7 @@ static int mlx4_comm_cmd_wait(struct mlx4_dev *dev, u8 op,
{
struct mlx4_cmd *cmd = &mlx4_priv(dev)->cmd;
struct mlx4_cmd_context *context;
+ unsigned long end;
int err = 0;
down(&cmd->event_sem);
@@ -268,6 +269,14 @@ static int mlx4_comm_cmd_wait(struct mlx4_dev *dev, u8 op,
}
out:
+ /* wait for comm channel ready
+ * this is necessary for prevention the race
+ * when switching between event to polling mode
+ */
+ end = msecs_to_jiffies(timeout) + jiffies;
+ while (comm_pending(dev) && time_before(jiffies, end))
+ cond_resched();
+
spin_lock(&cmd->context_lock);
context->next = cmd->free_head;
cmd->free_head = context - cmd->context;
@@ -1314,7 +1323,7 @@ static void mlx4_master_do_cmd(struct mlx4_dev *dev, int slave, u8 cmd,
down(&priv->cmd.slave_sem);
if (mlx4_master_process_vhcr(dev, slave, NULL)) {
mlx4_err(dev, "Failed processing vhcr for slave:%d,"
- " reseting slave.\n", slave);
+ " resetting slave.\n", slave);
up(&priv->cmd.slave_sem);
goto reset_slave;
}
diff --git a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
index 149e60da0a3..31b455a4927 100644
--- a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
@@ -1048,10 +1048,8 @@ int mlx4_en_init_netdev(struct mlx4_en_dev *mdev, int port,
dev = alloc_etherdev_mqs(sizeof(struct mlx4_en_priv),
prof->tx_ring_num, prof->rx_ring_num);
- if (dev == NULL) {
- mlx4_err(mdev, "Net device allocation failed\n");
+ if (dev == NULL)
return -ENOMEM;
- }
SET_NETDEV_DEV(dev, &mdev->dev->pdev->dev);
dev->dev_id = port - 1;
@@ -1064,6 +1062,7 @@ int mlx4_en_init_netdev(struct mlx4_en_dev *mdev, int port,
memset(priv, 0, sizeof(struct mlx4_en_priv));
priv->dev = dev;
priv->mdev = mdev;
+ priv->ddev = &mdev->pdev->dev;
priv->prof = prof;
priv->port = port;
priv->port_up = false;
diff --git a/drivers/net/ethernet/mellanox/mlx4/en_rx.c b/drivers/net/ethernet/mellanox/mlx4/en_rx.c
index d4ad8c226b5..9adbd53da52 100644
--- a/drivers/net/ethernet/mellanox/mlx4/en_rx.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_rx.c
@@ -48,7 +48,6 @@ static int mlx4_en_alloc_frag(struct mlx4_en_priv *priv,
struct mlx4_en_rx_alloc *ring_alloc,
int i)
{
- struct mlx4_en_dev *mdev = priv->mdev;
struct mlx4_en_frag_info *frag_info = &priv->frag_info[i];
struct mlx4_en_rx_alloc *page_alloc = &ring_alloc[i];
struct page *page;
@@ -72,7 +71,7 @@ static int mlx4_en_alloc_frag(struct mlx4_en_priv *priv,
skb_frags[i].offset = page_alloc->offset;
page_alloc->offset += frag_info->frag_stride;
}
- dma = pci_map_single(mdev->pdev, page_address(skb_frags[i].page) +
+ dma = dma_map_single(priv->ddev, page_address(skb_frags[i].page) +
skb_frags[i].offset, frag_info->frag_size,
PCI_DMA_FROMDEVICE);
rx_desc->data[i].addr = cpu_to_be64(dma);
@@ -186,7 +185,6 @@ static void mlx4_en_free_rx_desc(struct mlx4_en_priv *priv,
struct mlx4_en_rx_ring *ring,
int index)
{
- struct mlx4_en_dev *mdev = priv->mdev;
struct page_frag *skb_frags;
struct mlx4_en_rx_desc *rx_desc = ring->buf + (index << ring->log_stride);
dma_addr_t dma;
@@ -198,7 +196,7 @@ static void mlx4_en_free_rx_desc(struct mlx4_en_priv *priv,
dma = be64_to_cpu(rx_desc->data[nr].addr);
en_dbg(DRV, priv, "Unmapping buffer at dma:0x%llx\n", (u64) dma);
- pci_unmap_single(mdev->pdev, dma, skb_frags[nr].size,
+ dma_unmap_single(priv->ddev, dma, skb_frags[nr].size,
PCI_DMA_FROMDEVICE);
put_page(skb_frags[nr].page);
}
@@ -285,10 +283,9 @@ int mlx4_en_create_rx_ring(struct mlx4_en_priv *priv,
tmp = size * roundup_pow_of_two(MLX4_EN_MAX_RX_FRAGS *
sizeof(struct skb_frag_struct));
ring->rx_info = vmalloc(tmp);
- if (!ring->rx_info) {
- en_err(priv, "Failed allocating rx_info ring\n");
+ if (!ring->rx_info)
return -ENOMEM;
- }
+
en_dbg(DRV, priv, "Allocated rx_info ring at addr:%p size:%d\n",
ring->rx_info, tmp);
@@ -413,7 +410,6 @@ static int mlx4_en_complete_rx_desc(struct mlx4_en_priv *priv,
int length)
{
struct skb_frag_struct *skb_frags_rx = skb_shinfo(skb)->frags;
- struct mlx4_en_dev *mdev = priv->mdev;
struct mlx4_en_frag_info *frag_info;
int nr;
dma_addr_t dma;
@@ -436,7 +432,7 @@ static int mlx4_en_complete_rx_desc(struct mlx4_en_priv *priv,
goto fail;
/* Unmap buffer */
- pci_unmap_single(mdev->pdev, dma, skb_frag_size(&skb_frags_rx[nr]),
+ dma_unmap_single(priv->ddev, dma, skb_frag_size(&skb_frags_rx[nr]),
PCI_DMA_FROMDEVICE);
}
/* Adjust size of last fragment to match actual length */
@@ -462,18 +458,16 @@ static struct sk_buff *mlx4_en_rx_skb(struct mlx4_en_priv *priv,
struct mlx4_en_rx_alloc *page_alloc,
unsigned int length)
{
- struct mlx4_en_dev *mdev = priv->mdev;
struct sk_buff *skb;
void *va;
int used_frags;
dma_addr_t dma;
- skb = dev_alloc_skb(SMALL_PACKET_SIZE + NET_IP_ALIGN);
+ skb = netdev_alloc_skb(priv->dev, SMALL_PACKET_SIZE + NET_IP_ALIGN);
if (!skb) {
en_dbg(RX_ERR, priv, "Failed allocating skb\n");
return NULL;
}
- skb->dev = priv->dev;
skb_reserve(skb, NET_IP_ALIGN);
skb->len = length;
@@ -485,10 +479,10 @@ static struct sk_buff *mlx4_en_rx_skb(struct mlx4_en_priv *priv,
/* We are copying all relevant data to the skb - temporarily
* synch buffers for the copy */
dma = be64_to_cpu(rx_desc->data[0].addr);
- dma_sync_single_for_cpu(&mdev->pdev->dev, dma, length,
+ dma_sync_single_for_cpu(priv->ddev, dma, length,
DMA_FROM_DEVICE);
skb_copy_to_linear_data(skb, va, length);
- dma_sync_single_for_device(&mdev->pdev->dev, dma, length,
+ dma_sync_single_for_device(priv->ddev, dma, length,
DMA_FROM_DEVICE);
skb->tail += length;
} else {
@@ -916,7 +910,7 @@ int mlx4_en_config_rss_steer(struct mlx4_en_priv *priv)
rss_context->flags = rss_mask;
rss_context->hash_fn = MLX4_RSS_HASH_TOP;
for (i = 0; i < 10; i++)
- rss_context->rss_key[i] = rsskey[i];
+ rss_context->rss_key[i] = cpu_to_be32(rsskey[i]);
err = mlx4_qp_to_ready(mdev->dev, &priv->res.mtt, &context,
&rss_map->indir_qp, &rss_map->indir_state);
diff --git a/drivers/net/ethernet/mellanox/mlx4/en_tx.c b/drivers/net/ethernet/mellanox/mlx4/en_tx.c
index 9ef9038d062..17968244c39 100644
--- a/drivers/net/ethernet/mellanox/mlx4/en_tx.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_tx.c
@@ -71,16 +71,14 @@ int mlx4_en_create_tx_ring(struct mlx4_en_priv *priv,
tmp = size * sizeof(struct mlx4_en_tx_info);
ring->tx_info = vmalloc(tmp);
- if (!ring->tx_info) {
- en_err(priv, "Failed allocating tx_info ring\n");
+ if (!ring->tx_info)
return -ENOMEM;
- }
+
en_dbg(DRV, priv, "Allocated tx_info ring at addr:%p size:%d\n",
ring->tx_info, tmp);
ring->bounce_buf = kmalloc(MAX_DESC_SIZE, GFP_KERNEL);
if (!ring->bounce_buf) {
- en_err(priv, "Failed allocating bounce buffer\n");
err = -ENOMEM;
goto err_tx;
}
@@ -200,7 +198,6 @@ static u32 mlx4_en_free_tx_desc(struct mlx4_en_priv *priv,
struct mlx4_en_tx_ring *ring,
int index, u8 owner)
{
- struct mlx4_en_dev *mdev = priv->mdev;
struct mlx4_en_tx_info *tx_info = &ring->tx_info[index];
struct mlx4_en_tx_desc *tx_desc = ring->buf + index * TXBB_SIZE;
struct mlx4_wqe_data_seg *data = (void *) tx_desc + tx_info->data_offset;
@@ -216,7 +213,7 @@ static u32 mlx4_en_free_tx_desc(struct mlx4_en_priv *priv,
if (likely((void *) tx_desc + tx_info->nr_txbb * TXBB_SIZE <= end)) {
if (!tx_info->inl) {
if (tx_info->linear) {
- pci_unmap_single(mdev->pdev,
+ dma_unmap_single(priv->ddev,
(dma_addr_t) be64_to_cpu(data->addr),
be32_to_cpu(data->byte_count),
PCI_DMA_TODEVICE);
@@ -225,7 +222,7 @@ static u32 mlx4_en_free_tx_desc(struct mlx4_en_priv *priv,
for (i = 0; i < frags; i++) {
frag = &skb_shinfo(skb)->frags[i];
- pci_unmap_page(mdev->pdev,
+ dma_unmap_page(priv->ddev,
(dma_addr_t) be64_to_cpu(data[i].addr),
skb_frag_size(frag), PCI_DMA_TODEVICE);
}
@@ -243,7 +240,7 @@ static u32 mlx4_en_free_tx_desc(struct mlx4_en_priv *priv,
}
if (tx_info->linear) {
- pci_unmap_single(mdev->pdev,
+ dma_unmap_single(priv->ddev,
(dma_addr_t) be64_to_cpu(data->addr),
be32_to_cpu(data->byte_count),
PCI_DMA_TODEVICE);
@@ -255,7 +252,7 @@ static u32 mlx4_en_free_tx_desc(struct mlx4_en_priv *priv,
if ((void *) data >= end)
data = ring->buf;
frag = &skb_shinfo(skb)->frags[i];
- pci_unmap_page(mdev->pdev,
+ dma_unmap_page(priv->ddev,
(dma_addr_t) be64_to_cpu(data->addr),
skb_frag_size(frag), PCI_DMA_TODEVICE);
++data;
@@ -587,7 +584,7 @@ u16 mlx4_en_select_queue(struct net_device *dev, struct sk_buff *skb)
return skb_tx_hash(dev, skb);
}
-static void mlx4_bf_copy(unsigned long *dst, unsigned long *src, unsigned bytecnt)
+static void mlx4_bf_copy(void __iomem *dst, unsigned long *src, unsigned bytecnt)
{
__iowrite64_copy(dst, src, bytecnt / 8);
}
@@ -603,8 +600,6 @@ netdev_tx_t mlx4_en_xmit(struct sk_buff *skb, struct net_device *dev)
struct skb_frag_struct *frag;
struct mlx4_en_tx_info *tx_info;
struct ethhdr *ethh;
- u64 mac;
- u32 mac_l, mac_h;
int tx_ind = 0;
int nr_txbb;
int desc_size;
@@ -689,16 +684,9 @@ netdev_tx_t mlx4_en_xmit(struct sk_buff *skb, struct net_device *dev)
}
/* Copy dst mac address to wqe */
- skb_reset_mac_header(skb);
- ethh = eth_hdr(skb);
- if (ethh && ethh->h_dest) {
- mac = mlx4_en_mac_to_u64(ethh->h_dest);
- mac_h = (u32) ((mac & 0xffff00000000ULL) >> 16);
- mac_l = (u32) (mac & 0xffffffff);
- tx_desc->ctrl.srcrb_flags |= cpu_to_be32(mac_h);
- tx_desc->ctrl.imm = cpu_to_be32(mac_l);
- }
-
+ ethh = (struct ethhdr *)skb->data;
+ tx_desc->ctrl.srcrb_flags16[0] = get_unaligned((__be16 *)ethh->h_dest);
+ tx_desc->ctrl.imm = get_unaligned((__be32 *)(ethh->h_dest + 2));
/* Handle LSO (TSO) packets */
if (lso_header_size) {
/* Mark opcode as LSO */
@@ -744,7 +732,7 @@ netdev_tx_t mlx4_en_xmit(struct sk_buff *skb, struct net_device *dev)
/* Map fragments */
for (i = skb_shinfo(skb)->nr_frags - 1; i >= 0; i--) {
frag = &skb_shinfo(skb)->frags[i];
- dma = skb_frag_dma_map(&mdev->dev->pdev->dev, frag,
+ dma = skb_frag_dma_map(priv->ddev, frag,
0, skb_frag_size(frag),
DMA_TO_DEVICE);
data->addr = cpu_to_be64(dma);
@@ -756,7 +744,7 @@ netdev_tx_t mlx4_en_xmit(struct sk_buff *skb, struct net_device *dev)
/* Map linear part */
if (tx_info->linear) {
- dma = pci_map_single(mdev->dev->pdev, skb->data + lso_header_size,
+ dma = dma_map_single(priv->ddev, skb->data + lso_header_size,
skb_headlen(skb) - lso_header_size, PCI_DMA_TODEVICE);
data->addr = cpu_to_be64(dma);
data->lkey = cpu_to_be32(mdev->mr.key);
diff --git a/drivers/net/ethernet/mellanox/mlx4/eq.c b/drivers/net/ethernet/mellanox/mlx4/eq.c
index 9129ace0256..3b6f8efbf14 100644
--- a/drivers/net/ethernet/mellanox/mlx4/eq.c
+++ b/drivers/net/ethernet/mellanox/mlx4/eq.c
@@ -79,7 +79,8 @@ enum {
(1ull << MLX4_EVENT_TYPE_SRQ_LIMIT) | \
(1ull << MLX4_EVENT_TYPE_CMD) | \
(1ull << MLX4_EVENT_TYPE_COMM_CHANNEL) | \
- (1ull << MLX4_EVENT_TYPE_FLR_EVENT))
+ (1ull << MLX4_EVENT_TYPE_FLR_EVENT) | \
+ (1ull << MLX4_EVENT_TYPE_FATAL_WARNING))
static void eq_set_ci(struct mlx4_eq *eq, int req_not)
{
@@ -443,6 +444,35 @@ static int mlx4_eq_int(struct mlx4_dev *dev, struct mlx4_eq *eq)
queue_work(priv->mfunc.master.comm_wq,
&priv->mfunc.master.slave_flr_event_work);
break;
+
+ case MLX4_EVENT_TYPE_FATAL_WARNING:
+ if (eqe->subtype == MLX4_FATAL_WARNING_SUBTYPE_WARMING) {
+ if (mlx4_is_master(dev))
+ for (i = 0; i < dev->num_slaves; i++) {
+ mlx4_dbg(dev, "%s: Sending "
+ "MLX4_FATAL_WARNING_SUBTYPE_WARMING"
+ " to slave: %d\n", __func__, i);
+ if (i == dev->caps.function)
+ continue;
+ mlx4_slave_event(dev, i, eqe);
+ }
+ mlx4_err(dev, "Temperature Threshold was reached! "
+ "Threshold: %d celsius degrees; "
+ "Current Temperature: %d\n",
+ be16_to_cpu(eqe->event.warming.warning_threshold),
+ be16_to_cpu(eqe->event.warming.current_temperature));
+ } else
+ mlx4_warn(dev, "Unhandled event FATAL WARNING (%02x), "
+ "subtype %02x on EQ %d at index %u. owner=%x, "
+ "nent=0x%x, slave=%x, ownership=%s\n",
+ eqe->type, eqe->subtype, eq->eqn,
+ eq->cons_index, eqe->owner, eq->nent,
+ eqe->slave_id,
+ !!(eqe->owner & 0x80) ^
+ !!(eq->cons_index & eq->nent) ? "HW" : "SW");
+
+ break;
+
case MLX4_EVENT_TYPE_EEC_CATAS_ERROR:
case MLX4_EVENT_TYPE_ECC_DETECT:
default:
diff --git a/drivers/net/ethernet/mellanox/mlx4/fw.c b/drivers/net/ethernet/mellanox/mlx4/fw.c
index 9ea7cabcaf3..2a02ba522e6 100644
--- a/drivers/net/ethernet/mellanox/mlx4/fw.c
+++ b/drivers/net/ethernet/mellanox/mlx4/fw.c
@@ -685,16 +685,6 @@ int mlx4_QUERY_PORT_wrapper(struct mlx4_dev *dev, int slave,
return err;
}
-int mlx4_QUERY_PORT(struct mlx4_dev *dev, void *ptr, u8 port)
-{
- struct mlx4_cmd_mailbox *outbox = ptr;
-
- return mlx4_cmd_box(dev, 0, outbox->dma, port, 0,
- MLX4_CMD_QUERY_PORT, MLX4_CMD_TIME_CLASS_B,
- MLX4_CMD_WRAPPED);
-}
-EXPORT_SYMBOL_GPL(mlx4_QUERY_PORT);
-
int mlx4_map_cmd(struct mlx4_dev *dev, u16 op, struct mlx4_icm *icm, u64 virt)
{
struct mlx4_cmd_mailbox *mailbox;
diff --git a/drivers/net/ethernet/mellanox/mlx4/main.c b/drivers/net/ethernet/mellanox/mlx4/main.c
index d498f049c74..8bb05b46db8 100644
--- a/drivers/net/ethernet/mellanox/mlx4/main.c
+++ b/drivers/net/ethernet/mellanox/mlx4/main.c
@@ -394,7 +394,7 @@ static int mlx4_how_many_lives_vf(struct mlx4_dev *dev)
return ret;
}
-static int mlx4_is_slave_active(struct mlx4_dev *dev, int slave)
+int mlx4_is_slave_active(struct mlx4_dev *dev, int slave)
{
struct mlx4_priv *priv = mlx4_priv(dev);
struct mlx4_slave_state *s_slave;
@@ -646,6 +646,99 @@ out:
return err ? err : count;
}
+enum ibta_mtu {
+ IB_MTU_256 = 1,
+ IB_MTU_512 = 2,
+ IB_MTU_1024 = 3,
+ IB_MTU_2048 = 4,
+ IB_MTU_4096 = 5
+};
+
+static inline int int_to_ibta_mtu(int mtu)
+{
+ switch (mtu) {
+ case 256: return IB_MTU_256;
+ case 512: return IB_MTU_512;
+ case 1024: return IB_MTU_1024;
+ case 2048: return IB_MTU_2048;
+ case 4096: return IB_MTU_4096;
+ default: return -1;
+ }
+}
+
+static inline int ibta_mtu_to_int(enum ibta_mtu mtu)
+{
+ switch (mtu) {
+ case IB_MTU_256: return 256;
+ case IB_MTU_512: return 512;
+ case IB_MTU_1024: return 1024;
+ case IB_MTU_2048: return 2048;
+ case IB_MTU_4096: return 4096;
+ default: return -1;
+ }
+}
+
+static ssize_t show_port_ib_mtu(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct mlx4_port_info *info = container_of(attr, struct mlx4_port_info,
+ port_mtu_attr);
+ struct mlx4_dev *mdev = info->dev;
+
+ if (mdev->caps.port_type[info->port] == MLX4_PORT_TYPE_ETH)
+ mlx4_warn(mdev, "port level mtu is only used for IB ports\n");
+
+ sprintf(buf, "%d\n",
+ ibta_mtu_to_int(mdev->caps.port_ib_mtu[info->port]));
+ return strlen(buf);
+}
+
+static ssize_t set_port_ib_mtu(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct mlx4_port_info *info = container_of(attr, struct mlx4_port_info,
+ port_mtu_attr);
+ struct mlx4_dev *mdev = info->dev;
+ struct mlx4_priv *priv = mlx4_priv(mdev);
+ int err, port, mtu, ibta_mtu = -1;
+
+ if (mdev->caps.port_type[info->port] == MLX4_PORT_TYPE_ETH) {
+ mlx4_warn(mdev, "port level mtu is only used for IB ports\n");
+ return -EINVAL;
+ }
+
+ err = sscanf(buf, "%d", &mtu);
+ if (err > 0)
+ ibta_mtu = int_to_ibta_mtu(mtu);
+
+ if (err <= 0 || ibta_mtu < 0) {
+ mlx4_err(mdev, "%s is invalid IBTA mtu\n", buf);
+ return -EINVAL;
+ }
+
+ mdev->caps.port_ib_mtu[info->port] = ibta_mtu;
+
+ mlx4_stop_sense(mdev);
+ mutex_lock(&priv->port_mutex);
+ mlx4_unregister_device(mdev);
+ for (port = 1; port <= mdev->caps.num_ports; port++) {
+ mlx4_CLOSE_PORT(mdev, port);
+ err = mlx4_SET_PORT(mdev, port);
+ if (err) {
+ mlx4_err(mdev, "Failed to set port %d, "
+ "aborting\n", port);
+ goto err_set_port;
+ }
+ }
+ err = mlx4_register_device(mdev);
+err_set_port:
+ mutex_unlock(&priv->port_mutex);
+ mlx4_start_sense(mdev);
+ return err ? err : count;
+}
+
static int mlx4_load_fw(struct mlx4_dev *dev)
{
struct mlx4_priv *priv = mlx4_priv(dev);
@@ -1133,6 +1226,8 @@ static int mlx4_init_hca(struct mlx4_dev *dev)
goto err_stop_fw;
}
+ dev->caps.max_fmr_maps = (1 << (32 - ilog2(dev->caps.num_mpts))) - 1;
+
init_hca.log_uar_sz = ilog2(dev->caps.num_uars);
init_hca.uar_page_sz = PAGE_SHIFT - 12;
@@ -1363,12 +1458,10 @@ static int mlx4_setup_hca(struct mlx4_dev *dev)
"with caps = 0\n", port, err);
dev->caps.ib_port_def_cap[port] = ib_port_default_caps;
- err = mlx4_check_ext_port_caps(dev, port);
- if (err)
- mlx4_warn(dev, "failed to get port %d extended "
- "port capabilities support info (%d)."
- " Assuming not supported\n",
- port, err);
+ if (mlx4_is_mfunc(dev))
+ dev->caps.port_ib_mtu[port] = IB_MTU_2048;
+ else
+ dev->caps.port_ib_mtu[port] = IB_MTU_4096;
err = mlx4_SET_PORT(dev, port);
if (err) {
@@ -1524,6 +1617,24 @@ static int mlx4_init_port_info(struct mlx4_dev *dev, int port)
info->port = -1;
}
+ sprintf(info->dev_mtu_name, "mlx4_port%d_mtu", port);
+ info->port_mtu_attr.attr.name = info->dev_mtu_name;
+ if (mlx4_is_mfunc(dev))
+ info->port_mtu_attr.attr.mode = S_IRUGO;
+ else {
+ info->port_mtu_attr.attr.mode = S_IRUGO | S_IWUSR;
+ info->port_mtu_attr.store = set_port_ib_mtu;
+ }
+ info->port_mtu_attr.show = show_port_ib_mtu;
+ sysfs_attr_init(&info->port_mtu_attr.attr);
+
+ err = device_create_file(&dev->pdev->dev, &info->port_mtu_attr);
+ if (err) {
+ mlx4_err(dev, "Failed to create mtu file for port %d\n", port);
+ device_remove_file(&info->dev->pdev->dev, &info->port_attr);
+ info->port = -1;
+ }
+
return err;
}
@@ -1533,6 +1644,7 @@ static void mlx4_cleanup_port_info(struct mlx4_port_info *info)
return;
device_remove_file(&info->dev->pdev->dev, &info->port_attr);
+ device_remove_file(&info->dev->pdev->dev, &info->port_mtu_attr);
}
static int mlx4_init_steering(struct mlx4_dev *dev)
@@ -1545,13 +1657,11 @@ static int mlx4_init_steering(struct mlx4_dev *dev)
if (!priv->steer)
return -ENOMEM;
- for (i = 0; i < num_entries; i++) {
+ for (i = 0; i < num_entries; i++)
for (j = 0; j < MLX4_NUM_STEERS; j++) {
INIT_LIST_HEAD(&priv->steer[i].promisc_qps[j]);
INIT_LIST_HEAD(&priv->steer[i].steer_entries[j]);
}
- INIT_LIST_HEAD(&priv->steer[i].high_prios);
- }
return 0;
}
diff --git a/drivers/net/ethernet/mellanox/mlx4/mcg.c b/drivers/net/ethernet/mellanox/mlx4/mcg.c
index ca574d850b3..4799e824052 100644
--- a/drivers/net/ethernet/mellanox/mlx4/mcg.c
+++ b/drivers/net/ethernet/mellanox/mlx4/mcg.c
@@ -562,14 +562,14 @@ out_mutex:
*/
static int find_entry(struct mlx4_dev *dev, u8 port,
u8 *gid, enum mlx4_protocol prot,
- enum mlx4_steer_type steer,
struct mlx4_cmd_mailbox *mgm_mailbox,
- u16 *hash, int *prev, int *index)
+ int *prev, int *index)
{
struct mlx4_cmd_mailbox *mailbox;
struct mlx4_mgm *mgm = mgm_mailbox->buf;
u8 *mgid;
int err;
+ u16 hash;
u8 op_mod = (prot == MLX4_PROT_ETH) ?
!!(dev->caps.flags & MLX4_DEV_CAP_FLAG_VEP_MC_STEER) : 0;
@@ -580,15 +580,15 @@ static int find_entry(struct mlx4_dev *dev, u8 port,
memcpy(mgid, gid, 16);
- err = mlx4_GID_HASH(dev, mailbox, hash, op_mod);
+ err = mlx4_GID_HASH(dev, mailbox, &hash, op_mod);
mlx4_free_cmd_mailbox(dev, mailbox);
if (err)
return err;
if (0)
- mlx4_dbg(dev, "Hash for %pI6 is %04x\n", gid, *hash);
+ mlx4_dbg(dev, "Hash for %pI6 is %04x\n", gid, hash);
- *index = *hash;
+ *index = hash;
*prev = -1;
do {
@@ -597,7 +597,7 @@ static int find_entry(struct mlx4_dev *dev, u8 port,
return err;
if (!(be32_to_cpu(mgm->members_count) & 0xffffff)) {
- if (*index != *hash) {
+ if (*index != hash) {
mlx4_err(dev, "Found zero MGID in AMGM.\n");
err = -EINVAL;
}
@@ -624,7 +624,6 @@ int mlx4_qp_attach_common(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16],
struct mlx4_cmd_mailbox *mailbox;
struct mlx4_mgm *mgm;
u32 members_count;
- u16 hash;
int index, prev;
int link = 0;
int i;
@@ -638,8 +637,8 @@ int mlx4_qp_attach_common(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16],
mgm = mailbox->buf;
mutex_lock(&priv->mcg_table.mutex);
- err = find_entry(dev, port, gid, prot, steer,
- mailbox, &hash, &prev, &index);
+ err = find_entry(dev, port, gid, prot,
+ mailbox, &prev, &index);
if (err)
goto out;
@@ -733,7 +732,6 @@ int mlx4_qp_detach_common(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16],
struct mlx4_cmd_mailbox *mailbox;
struct mlx4_mgm *mgm;
u32 members_count;
- u16 hash;
int prev, index;
int i, loc;
int err;
@@ -747,8 +745,8 @@ int mlx4_qp_detach_common(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16],
mutex_lock(&priv->mcg_table.mutex);
- err = find_entry(dev, port, gid, prot, steer,
- mailbox, &hash, &prev, &index);
+ err = find_entry(dev, port, gid, prot,
+ mailbox, &prev, &index);
if (err)
goto out;
@@ -872,44 +870,36 @@ static int mlx4_QP_ATTACH(struct mlx4_dev *dev, struct mlx4_qp *qp,
int mlx4_multicast_attach(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16],
int block_mcast_loopback, enum mlx4_protocol prot)
{
- enum mlx4_steer_type steer;
-
- steer = (is_valid_ether_addr(&gid[10])) ? MLX4_UC_STEER : MLX4_MC_STEER;
-
if (prot == MLX4_PROT_ETH &&
!(dev->caps.flags & MLX4_DEV_CAP_FLAG_VEP_MC_STEER))
return 0;
if (prot == MLX4_PROT_ETH)
- gid[7] |= (steer << 1);
+ gid[7] |= (MLX4_MC_STEER << 1);
if (mlx4_is_mfunc(dev))
return mlx4_QP_ATTACH(dev, qp, gid, 1,
block_mcast_loopback, prot);
return mlx4_qp_attach_common(dev, qp, gid, block_mcast_loopback,
- prot, steer);
+ prot, MLX4_MC_STEER);
}
EXPORT_SYMBOL_GPL(mlx4_multicast_attach);
int mlx4_multicast_detach(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16],
enum mlx4_protocol prot)
{
- enum mlx4_steer_type steer;
-
- steer = (is_valid_ether_addr(&gid[10])) ? MLX4_UC_STEER : MLX4_MC_STEER;
-
if (prot == MLX4_PROT_ETH &&
!(dev->caps.flags & MLX4_DEV_CAP_FLAG_VEP_MC_STEER))
return 0;
if (prot == MLX4_PROT_ETH)
- gid[7] |= (steer << 1);
+ gid[7] |= (MLX4_MC_STEER << 1);
if (mlx4_is_mfunc(dev))
return mlx4_QP_ATTACH(dev, qp, gid, 0, 0, prot);
- return mlx4_qp_detach_common(dev, qp, gid, prot, steer);
+ return mlx4_qp_detach_common(dev, qp, gid, prot, MLX4_MC_STEER);
}
EXPORT_SYMBOL_GPL(mlx4_multicast_detach);
diff --git a/drivers/net/ethernet/mellanox/mlx4/mlx4.h b/drivers/net/ethernet/mellanox/mlx4/mlx4.h
index 28f8251561f..2a0ff2cc718 100644
--- a/drivers/net/ethernet/mellanox/mlx4/mlx4.h
+++ b/drivers/net/ethernet/mellanox/mlx4/mlx4.h
@@ -363,6 +363,10 @@ struct mlx4_eqe {
struct {
__be32 slave_id;
} __packed flr_event;
+ struct {
+ __be16 current_temperature;
+ __be16 warning_threshold;
+ } __packed warming;
} event;
u8 slave_id;
u8 reserved3[2];
@@ -399,7 +403,7 @@ struct mlx4_profile {
int num_cq;
int num_mcg;
int num_mpt;
- int num_mtt;
+ unsigned num_mtt;
};
struct mlx4_fw {
@@ -682,6 +686,8 @@ struct mlx4_port_info {
char dev_name[16];
struct device_attribute port_attr;
enum mlx4_port_type tmp_type;
+ char dev_mtu_name[16];
+ struct device_attribute port_mtu_attr;
struct mlx4_mac_table mac_table;
struct radix_tree_root mac_tree;
struct mlx4_vlan_table vlan_table;
@@ -703,7 +709,6 @@ struct mlx4_msix_ctl {
struct mlx4_steer {
struct list_head promisc_qps[MLX4_NUM_STEERS];
struct list_head steer_entries[MLX4_NUM_STEERS];
- struct list_head high_prios;
};
struct mlx4_priv {
@@ -1025,7 +1030,6 @@ int mlx4_QUERY_PORT_wrapper(struct mlx4_dev *dev, int slave,
struct mlx4_cmd_mailbox *outbox,
struct mlx4_cmd_info *cmd);
int mlx4_get_port_ib_caps(struct mlx4_dev *dev, u8 port, __be32 *caps);
-int mlx4_check_ext_port_caps(struct mlx4_dev *dev, u8 port);
int mlx4_QP_ATTACH_wrapper(struct mlx4_dev *dev, int slave,
diff --git a/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h b/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h
index d60335f3c47..9e2b911a123 100644
--- a/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h
+++ b/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h
@@ -453,7 +453,7 @@ struct mlx4_en_priv {
int base_qpn;
struct mlx4_en_rss_map rss_map;
- u32 ctrl_flags;
+ __be32 ctrl_flags;
u32 flags;
#define MLX4_EN_FLAG_PROMISC 0x1
#define MLX4_EN_FLAG_MC_PROMISC 0x2
@@ -482,6 +482,7 @@ struct mlx4_en_priv {
struct mlx4_en_stat_out_mbox hw_stats;
int vids[128];
bool wol;
+ struct device *ddev;
};
enum mlx4_en_wol {
@@ -552,10 +553,6 @@ void mlx4_en_rx_irq(struct mlx4_cq *mcq);
int mlx4_SET_MCAST_FLTR(struct mlx4_dev *dev, u8 port, u64 mac, u64 clear, u8 mode);
int mlx4_SET_VLAN_FLTR(struct mlx4_dev *dev, struct mlx4_en_priv *priv);
-int mlx4_SET_PORT_general(struct mlx4_dev *dev, u8 port, int mtu,
- u8 pptx, u8 pfctx, u8 pprx, u8 pfcrx);
-int mlx4_SET_PORT_qpn_calc(struct mlx4_dev *dev, u8 port, u32 base_qpn,
- u8 promisc);
int mlx4_en_DUMP_ETH_STATS(struct mlx4_en_dev *mdev, u8 port, u8 reset);
int mlx4_en_QUERY_PORT(struct mlx4_en_dev *mdev, u8 port);
diff --git a/drivers/net/ethernet/mellanox/mlx4/mr.c b/drivers/net/ethernet/mellanox/mlx4/mr.c
index 25a80d71fb2..fe2ac8449c1 100644
--- a/drivers/net/ethernet/mellanox/mlx4/mr.c
+++ b/drivers/net/ethernet/mellanox/mlx4/mr.c
@@ -304,30 +304,7 @@ static int mlx4_HW2SW_MPT(struct mlx4_dev *dev, struct mlx4_cmd_mailbox *mailbox
MLX4_CMD_TIME_CLASS_B, MLX4_CMD_WRAPPED);
}
-int mlx4_mr_reserve_range(struct mlx4_dev *dev, int cnt, int align,
- u32 *base_mridx)
-{
- struct mlx4_priv *priv = mlx4_priv(dev);
- u32 mridx;
-
- mridx = mlx4_bitmap_alloc_range(&priv->mr_table.mpt_bitmap, cnt, align);
- if (mridx == -1)
- return -ENOMEM;
-
- *base_mridx = mridx;
- return 0;
-
-}
-EXPORT_SYMBOL_GPL(mlx4_mr_reserve_range);
-
-void mlx4_mr_release_range(struct mlx4_dev *dev, u32 base_mridx, int cnt)
-{
- struct mlx4_priv *priv = mlx4_priv(dev);
- mlx4_bitmap_free_range(&priv->mr_table.mpt_bitmap, base_mridx, cnt);
-}
-EXPORT_SYMBOL_GPL(mlx4_mr_release_range);
-
-int mlx4_mr_alloc_reserved(struct mlx4_dev *dev, u32 mridx, u32 pd,
+static int mlx4_mr_alloc_reserved(struct mlx4_dev *dev, u32 mridx, u32 pd,
u64 iova, u64 size, u32 access, int npages,
int page_shift, struct mlx4_mr *mr)
{
@@ -340,7 +317,6 @@ int mlx4_mr_alloc_reserved(struct mlx4_dev *dev, u32 mridx, u32 pd,
return mlx4_mtt_init(dev, npages, page_shift, &mr->mtt);
}
-EXPORT_SYMBOL_GPL(mlx4_mr_alloc_reserved);
static int mlx4_WRITE_MTT(struct mlx4_dev *dev,
struct mlx4_cmd_mailbox *mailbox,
@@ -457,7 +433,7 @@ int mlx4_mr_alloc(struct mlx4_dev *dev, u32 pd, u64 iova, u64 size, u32 access,
}
EXPORT_SYMBOL_GPL(mlx4_mr_alloc);
-void mlx4_mr_free_reserved(struct mlx4_dev *dev, struct mlx4_mr *mr)
+static void mlx4_mr_free_reserved(struct mlx4_dev *dev, struct mlx4_mr *mr)
{
int err;
@@ -472,7 +448,6 @@ void mlx4_mr_free_reserved(struct mlx4_dev *dev, struct mlx4_mr *mr)
}
mlx4_mtt_cleanup(dev, &mr->mtt);
}
-EXPORT_SYMBOL_GPL(mlx4_mr_free_reserved);
void mlx4_mr_free(struct mlx4_dev *dev, struct mlx4_mr *mr)
{
@@ -816,6 +791,9 @@ int mlx4_fmr_alloc(struct mlx4_dev *dev, u32 pd, u32 access, int max_pages,
u64 mtt_offset;
int err = -ENOMEM;
+ if (max_maps > dev->caps.max_fmr_maps)
+ return -EINVAL;
+
if (page_shift < (ffs(dev->caps.page_size_cap) - 1) || page_shift >= 32)
return -EINVAL;
@@ -852,46 +830,6 @@ err_free:
}
EXPORT_SYMBOL_GPL(mlx4_fmr_alloc);
-int mlx4_fmr_alloc_reserved(struct mlx4_dev *dev, u32 mridx,
- u32 pd, u32 access, int max_pages,
- int max_maps, u8 page_shift, struct mlx4_fmr *fmr)
-{
- struct mlx4_priv *priv = mlx4_priv(dev);
- int err = -ENOMEM;
-
- if (page_shift < (ffs(dev->caps.page_size_cap) - 1) || page_shift >= 32)
- return -EINVAL;
-
- /* All MTTs must fit in the same page */
- if (max_pages * sizeof *fmr->mtts > PAGE_SIZE)
- return -EINVAL;
-
- fmr->page_shift = page_shift;
- fmr->max_pages = max_pages;
- fmr->max_maps = max_maps;
- fmr->maps = 0;
-
- err = mlx4_mr_alloc_reserved(dev, mridx, pd, 0, 0, access, max_pages,
- page_shift, &fmr->mr);
- if (err)
- return err;
-
- fmr->mtts = mlx4_table_find(&priv->mr_table.mtt_table,
- fmr->mr.mtt.offset,
- &fmr->dma_handle);
- if (!fmr->mtts) {
- err = -ENOMEM;
- goto err_free;
- }
-
- return 0;
-
-err_free:
- mlx4_mr_free_reserved(dev, &fmr->mr);
- return err;
-}
-EXPORT_SYMBOL_GPL(mlx4_fmr_alloc_reserved);
-
int mlx4_fmr_enable(struct mlx4_dev *dev, struct mlx4_fmr *fmr)
{
struct mlx4_priv *priv = mlx4_priv(dev);
@@ -954,18 +892,6 @@ int mlx4_fmr_free(struct mlx4_dev *dev, struct mlx4_fmr *fmr)
}
EXPORT_SYMBOL_GPL(mlx4_fmr_free);
-int mlx4_fmr_free_reserved(struct mlx4_dev *dev, struct mlx4_fmr *fmr)
-{
- if (fmr->maps)
- return -EBUSY;
-
- mlx4_mr_free_reserved(dev, &fmr->mr);
- fmr->mr.enabled = MLX4_MR_DISABLED;
-
- return 0;
-}
-EXPORT_SYMBOL_GPL(mlx4_fmr_free_reserved);
-
int mlx4_SYNC_TPT(struct mlx4_dev *dev)
{
return mlx4_cmd(dev, 0, 0, 0, MLX4_CMD_SYNC_TPT, 1000,
diff --git a/drivers/net/ethernet/mellanox/mlx4/port.c b/drivers/net/ethernet/mellanox/mlx4/port.c
index f44ae555bf4..77535ff18f1 100644
--- a/drivers/net/ethernet/mellanox/mlx4/port.c
+++ b/drivers/net/ethernet/mellanox/mlx4/port.c
@@ -79,15 +79,15 @@ static int mlx4_uc_steer_add(struct mlx4_dev *dev, u8 port, u64 mac, int *qpn)
{
struct mlx4_qp qp;
u8 gid[16] = {0};
+ __be64 be_mac;
int err;
qp.qpn = *qpn;
mac &= 0xffffffffffffULL;
- mac = cpu_to_be64(mac << 16);
- memcpy(&gid[10], &mac, ETH_ALEN);
+ be_mac = cpu_to_be64(mac << 16);
+ memcpy(&gid[10], &be_mac, ETH_ALEN);
gid[5] = port;
- gid[7] = MLX4_UC_STEER << 1;
err = mlx4_unicast_attach(dev, &qp, gid, 0, MLX4_PROT_ETH);
if (err)
@@ -101,13 +101,13 @@ static void mlx4_uc_steer_release(struct mlx4_dev *dev, u8 port,
{
struct mlx4_qp qp;
u8 gid[16] = {0};
+ __be64 be_mac;
qp.qpn = qpn;
mac &= 0xffffffffffffULL;
- mac = cpu_to_be64(mac << 16);
- memcpy(&gid[10], &mac, ETH_ALEN);
+ be_mac = cpu_to_be64(mac << 16);
+ memcpy(&gid[10], &be_mac, ETH_ALEN);
gid[5] = port;
- gid[7] = MLX4_UC_STEER << 1;
mlx4_unicast_detach(dev, &qp, gid, MLX4_PROT_ETH);
}
@@ -590,49 +590,6 @@ int mlx4_get_port_ib_caps(struct mlx4_dev *dev, u8 port, __be32 *caps)
return err;
}
-int mlx4_check_ext_port_caps(struct mlx4_dev *dev, u8 port)
-{
- struct mlx4_cmd_mailbox *inmailbox, *outmailbox;
- u8 *inbuf, *outbuf;
- int err, packet_error;
-
- inmailbox = mlx4_alloc_cmd_mailbox(dev);
- if (IS_ERR(inmailbox))
- return PTR_ERR(inmailbox);
-
- outmailbox = mlx4_alloc_cmd_mailbox(dev);
- if (IS_ERR(outmailbox)) {
- mlx4_free_cmd_mailbox(dev, inmailbox);
- return PTR_ERR(outmailbox);
- }
-
- inbuf = inmailbox->buf;
- outbuf = outmailbox->buf;
- memset(inbuf, 0, 256);
- memset(outbuf, 0, 256);
- inbuf[0] = 1;
- inbuf[1] = 1;
- inbuf[2] = 1;
- inbuf[3] = 1;
-
- *(__be16 *) (&inbuf[16]) = MLX4_ATTR_EXTENDED_PORT_INFO;
- *(__be32 *) (&inbuf[20]) = cpu_to_be32(port);
-
- err = mlx4_cmd_box(dev, inmailbox->dma, outmailbox->dma, port, 3,
- MLX4_CMD_MAD_IFC, MLX4_CMD_TIME_CLASS_C,
- MLX4_CMD_NATIVE);
-
- packet_error = be16_to_cpu(*(__be16 *) (outbuf + 4));
-
- dev->caps.ext_port_cap[port] = (!err && !packet_error) ?
- MLX_EXT_PORT_CAP_FLAG_EXTENDED_PORT_INFO
- : 0;
-
- mlx4_free_cmd_mailbox(dev, inmailbox);
- mlx4_free_cmd_mailbox(dev, outmailbox);
- return err;
-}
-
static int mlx4_common_set_port(struct mlx4_dev *dev, int slave, u32 in_mod,
u8 op_mod, struct mlx4_cmd_mailbox *inbox)
{
@@ -766,10 +723,18 @@ int mlx4_SET_PORT_wrapper(struct mlx4_dev *dev, int slave,
vhcr->op_modifier, inbox);
}
+/* bit locations for set port command with zero op modifier */
+enum {
+ MLX4_SET_PORT_VL_CAP = 4, /* bits 7:4 */
+ MLX4_SET_PORT_MTU_CAP = 12, /* bits 15:12 */
+ MLX4_CHANGE_PORT_VL_CAP = 21,
+ MLX4_CHANGE_PORT_MTU_CAP = 22,
+};
+
int mlx4_SET_PORT(struct mlx4_dev *dev, u8 port)
{
struct mlx4_cmd_mailbox *mailbox;
- int err;
+ int err, vl_cap;
if (dev->caps.port_type[port] == MLX4_PORT_TYPE_ETH)
return 0;
@@ -781,8 +746,19 @@ int mlx4_SET_PORT(struct mlx4_dev *dev, u8 port)
memset(mailbox->buf, 0, 256);
((__be32 *) mailbox->buf)[1] = dev->caps.ib_port_def_cap[port];
- err = mlx4_cmd(dev, mailbox->dma, port, 0, MLX4_CMD_SET_PORT,
- MLX4_CMD_TIME_CLASS_B, MLX4_CMD_WRAPPED);
+
+ /* IB VL CAP enum isn't used by the firmware, just numerical values */
+ for (vl_cap = 8; vl_cap >= 1; vl_cap >>= 1) {
+ ((__be32 *) mailbox->buf)[0] = cpu_to_be32(
+ (1 << MLX4_CHANGE_PORT_MTU_CAP) |
+ (1 << MLX4_CHANGE_PORT_VL_CAP) |
+ (dev->caps.port_ib_mtu[port] << MLX4_SET_PORT_MTU_CAP) |
+ (vl_cap << MLX4_SET_PORT_VL_CAP));
+ err = mlx4_cmd(dev, mailbox->dma, port, 0, MLX4_CMD_SET_PORT,
+ MLX4_CMD_TIME_CLASS_B, MLX4_CMD_WRAPPED);
+ if (err != -ENOMEM)
+ break;
+ }
mlx4_free_cmd_mailbox(dev, mailbox);
return err;
diff --git a/drivers/net/ethernet/mellanox/mlx4/profile.c b/drivers/net/ethernet/mellanox/mlx4/profile.c
index 1129677daa6..06e5adeb76f 100644
--- a/drivers/net/ethernet/mellanox/mlx4/profile.c
+++ b/drivers/net/ethernet/mellanox/mlx4/profile.c
@@ -83,12 +83,31 @@ u64 mlx4_make_profile(struct mlx4_dev *dev,
u64 total_size = 0;
struct mlx4_resource *profile;
struct mlx4_resource tmp;
+ struct sysinfo si;
int i, j;
profile = kcalloc(MLX4_RES_NUM, sizeof(*profile), GFP_KERNEL);
if (!profile)
return -ENOMEM;
+ /*
+ * We want to scale the number of MTTs with the size of the
+ * system memory, since it makes sense to register a lot of
+ * memory on a system with a lot of memory. As a heuristic,
+ * make sure we have enough MTTs to cover twice the system
+ * memory (with PAGE_SIZE entries).
+ *
+ * This number has to be a power of two and fit into 32 bits
+ * due to device limitations, so cap this at 2^31 as well.
+ * That limits us to 8TB of memory registration per HCA with
+ * 4KB pages, which is probably OK for the next few months.
+ */
+ si_meminfo(&si);
+ request->num_mtt =
+ roundup_pow_of_two(max_t(unsigned, request->num_mtt,
+ min(1UL << 31,
+ si.totalram >> (log_mtts_per_seg - 1))));
+
profile[MLX4_RES_QP].size = dev_cap->qpc_entry_sz;
profile[MLX4_RES_RDMARC].size = dev_cap->rdmarc_entry_sz;
profile[MLX4_RES_ALTC].size = dev_cap->altc_entry_sz;