ibmveth: Remove use of bitfields
Removes the use of bitfields from the ibmveth driver. This results
in slightly smaller object code.
Signed-off-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
diff --git a/drivers/net/ibmveth.c b/drivers/net/ibmveth.c
index f6be7b2..2dff9f2 100644
--- a/drivers/net/ibmveth.c
+++ b/drivers/net/ibmveth.c
@@ -132,19 +132,29 @@
};
/* simple methods of getting data from the current rxq entry */
+static inline u32 ibmveth_rxq_flags(struct ibmveth_adapter *adapter)
+{
+ return adapter->rx_queue.queue_addr[adapter->rx_queue.index].flags_off;
+}
+
+static inline int ibmveth_rxq_toggle(struct ibmveth_adapter *adapter)
+{
+ return (ibmveth_rxq_flags(adapter) & IBMVETH_RXQ_TOGGLE) >> IBMVETH_RXQ_TOGGLE_SHIFT;
+}
+
static inline int ibmveth_rxq_pending_buffer(struct ibmveth_adapter *adapter)
{
- return (adapter->rx_queue.queue_addr[adapter->rx_queue.index].toggle == adapter->rx_queue.toggle);
+ return (ibmveth_rxq_toggle(adapter) == adapter->rx_queue.toggle);
}
static inline int ibmveth_rxq_buffer_valid(struct ibmveth_adapter *adapter)
{
- return (adapter->rx_queue.queue_addr[adapter->rx_queue.index].valid);
+ return (ibmveth_rxq_flags(adapter) & IBMVETH_RXQ_VALID);
}
static inline int ibmveth_rxq_frame_offset(struct ibmveth_adapter *adapter)
{
- return (adapter->rx_queue.queue_addr[adapter->rx_queue.index].offset);
+ return (ibmveth_rxq_flags(adapter) & IBMVETH_RXQ_OFF_MASK);
}
static inline int ibmveth_rxq_frame_length(struct ibmveth_adapter *adapter)
@@ -154,7 +164,7 @@
static inline int ibmveth_rxq_csum_good(struct ibmveth_adapter *adapter)
{
- return (adapter->rx_queue.queue_addr[adapter->rx_queue.index].csum_good);
+ return (ibmveth_rxq_flags(adapter) & IBMVETH_RXQ_CSUM_GOOD);
}
/* setup the initial settings for a buffer pool */
@@ -254,9 +264,7 @@
correlator = ((u64)pool->index << 32) | index;
*(u64*)skb->data = correlator;
- desc.desc = 0;
- desc.fields.valid = 1;
- desc.fields.length = pool->buff_size;
+ desc.fields.flags_len = IBMVETH_BUF_VALID | pool->buff_size;
desc.fields.address = dma_addr;
lpar_rc = h_add_logical_lan_buffer(adapter->vdev->unit_address, desc.desc);
@@ -397,9 +405,8 @@
return;
}
- desc.desc = 0;
- desc.fields.valid = 1;
- desc.fields.length = adapter->rx_buff_pool[pool].buff_size;
+ desc.fields.flags_len = IBMVETH_BUF_VALID |
+ adapter->rx_buff_pool[pool].buff_size;
desc.fields.address = adapter->rx_buff_pool[pool].dma_addr[index];
lpar_rc = h_add_logical_lan_buffer(adapter->vdev->unit_address, desc.desc);
@@ -555,9 +562,7 @@
memcpy(&mac_address, netdev->dev_addr, netdev->addr_len);
mac_address = mac_address >> 16;
- rxq_desc.desc = 0;
- rxq_desc.fields.valid = 1;
- rxq_desc.fields.length = adapter->rx_queue.queue_len;
+ rxq_desc.fields.flags_len = IBMVETH_BUF_VALID | adapter->rx_queue.queue_len;
rxq_desc.fields.address = adapter->rx_queue.queue_dma;
ibmveth_debug_printk("buffer list @ 0x%p\n", adapter->buffer_list_addr);
@@ -704,7 +709,7 @@
void (*done) (struct net_device *, u32))
{
struct ibmveth_adapter *adapter = dev->priv;
- union ibmveth_illan_attributes set_attr, clr_attr, ret_attr;
+ u64 set_attr, clr_attr, ret_attr;
long ret;
int rc1 = 0, rc2 = 0;
int restart = 0;
@@ -716,21 +721,21 @@
adapter->pool_config = 0;
}
- set_attr.desc = 0;
- clr_attr.desc = 0;
+ set_attr = 0;
+ clr_attr = 0;
if (data)
- set_attr.fields.tcp_csum_offload_ipv4 = 1;
+ set_attr = IBMVETH_ILLAN_IPV4_TCP_CSUM;
else
- clr_attr.fields.tcp_csum_offload_ipv4 = 1;
+ clr_attr = IBMVETH_ILLAN_IPV4_TCP_CSUM;
- ret = h_illan_attributes(adapter->vdev->unit_address, 0, 0, &ret_attr.desc);
+ ret = h_illan_attributes(adapter->vdev->unit_address, 0, 0, &ret_attr);
- if (ret == H_SUCCESS && !ret_attr.fields.active_trunk &&
- !ret_attr.fields.trunk_priority &&
- ret_attr.fields.csum_offload_padded_pkt_support) {
- ret = h_illan_attributes(adapter->vdev->unit_address, clr_attr.desc,
- set_attr.desc, &ret_attr.desc);
+ if (ret == H_SUCCESS && !(ret_attr & IBMVETH_ILLAN_ACTIVE_TRUNK) &&
+ !(ret_attr & IBMVETH_ILLAN_TRUNK_PRI_MASK) &&
+ (ret_attr & IBMVETH_ILLAN_PADDED_PKT_CSUM)) {
+ ret = h_illan_attributes(adapter->vdev->unit_address, clr_attr,
+ set_attr, &ret_attr);
if (ret != H_SUCCESS) {
rc1 = -EIO;
@@ -738,13 +743,13 @@
" %d rc=%ld\n", data, ret);
ret = h_illan_attributes(adapter->vdev->unit_address,
- set_attr.desc, clr_attr.desc, &ret_attr.desc);
+ set_attr, clr_attr, &ret_attr);
} else
done(dev, data);
} else {
rc1 = -EIO;
ibmveth_error_printk("unable to change checksum offload settings."
- " %d rc=%ld ret_attr=%lx\n", data, ret, ret_attr.desc);
+ " %d rc=%ld ret_attr=%lx\n", data, ret, ret_attr);
}
if (restart)
@@ -850,11 +855,9 @@
unsigned int tx_send_failed = 0;
unsigned int tx_map_failed = 0;
- desc.desc = 0;
- desc.fields.length = skb->len;
+ desc.fields.flags_len = IBMVETH_BUF_VALID | skb->len;
desc.fields.address = dma_map_single(&adapter->vdev->dev, skb->data,
- desc.fields.length, DMA_TO_DEVICE);
- desc.fields.valid = 1;
+ skb->len, DMA_TO_DEVICE);
if (skb->ip_summed == CHECKSUM_PARTIAL &&
ip_hdr(skb)->protocol != IPPROTO_TCP && skb_checksum_help(skb)) {
@@ -866,8 +869,7 @@
if (skb->ip_summed == CHECKSUM_PARTIAL) {
unsigned char *buf = skb_transport_header(skb) + skb->csum_offset;
- desc.fields.no_csum = 1;
- desc.fields.csum_good = 1;
+ desc.fields.flags_len |= (IBMVETH_BUF_NO_CSUM | IBMVETH_BUF_CSUM_GOOD);
/* Need to zero out the checksum */
buf[0] = 0;
@@ -893,7 +895,8 @@
if(lpar_rc != H_SUCCESS && lpar_rc != H_DROPPED) {
ibmveth_error_printk("tx: h_send_logical_lan failed with rc=%ld\n", lpar_rc);
ibmveth_error_printk("tx: valid=%d, len=%d, address=0x%08x\n",
- desc.fields.valid, desc.fields.length, desc.fields.address);
+ (desc.fields.flags_len & IBMVETH_BUF_VALID) ? 1 : 0,
+ skb->len, desc.fields.address);
tx_send_failed++;
tx_dropped++;
} else {
@@ -903,7 +906,7 @@
}
dma_unmap_single(&adapter->vdev->dev, desc.fields.address,
- desc.fields.length, DMA_TO_DEVICE);
+ skb->len, DMA_TO_DEVICE);
out: spin_lock_irqsave(&adapter->stats_lock, flags);
adapter->stats.tx_dropped += tx_dropped;
@@ -1108,7 +1111,7 @@
long ret;
struct net_device *netdev;
struct ibmveth_adapter *adapter;
- union ibmveth_illan_attributes set_attr, ret_attr;
+ u64 set_attr, ret_attr;
unsigned char *mac_addr_p;
unsigned int *mcastFilterSize_p;
@@ -1202,23 +1205,20 @@
ibmveth_debug_printk("registering netdev...\n");
- ret = h_illan_attributes(dev->unit_address, 0, 0, &ret_attr.desc);
+ ret = h_illan_attributes(dev->unit_address, 0, 0, &ret_attr);
- if (ret == H_SUCCESS && !ret_attr.fields.active_trunk &&
- !ret_attr.fields.trunk_priority &&
- ret_attr.fields.csum_offload_padded_pkt_support) {
- set_attr.desc = 0;
- set_attr.fields.tcp_csum_offload_ipv4 = 1;
+ if (ret == H_SUCCESS && !(ret_attr & IBMVETH_ILLAN_ACTIVE_TRUNK) &&
+ !(ret_attr & IBMVETH_ILLAN_TRUNK_PRI_MASK) &&
+ (ret_attr & IBMVETH_ILLAN_PADDED_PKT_CSUM)) {
+ set_attr = IBMVETH_ILLAN_IPV4_TCP_CSUM;
- ret = h_illan_attributes(dev->unit_address, 0, set_attr.desc,
- &ret_attr.desc);
+ ret = h_illan_attributes(dev->unit_address, 0, set_attr, &ret_attr);
if (ret == H_SUCCESS) {
adapter->rx_csum = 1;
netdev->features |= NETIF_F_IP_CSUM;
} else
- ret = h_illan_attributes(dev->unit_address, set_attr.desc,
- 0, &ret_attr.desc);
+ ret = h_illan_attributes(dev->unit_address, set_attr, 0, &ret_attr);
}
rc = register_netdev(netdev);