github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-05-27 08:33:17 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

atl1c: move tx napi into tpd_ring

Browse Source 
To get more performance from using multiple tx queues one needs
a per tx queue napi.

Move tx napi from per adapter struct into per tx queue struct.
Patch that actually enables multiple tx queues will follow.

Signed-off-by: Gatis Peisenieks <gatis@mikrotik.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Gatis Peisenieks 2021-05-27 17:44:21 +03:00 committed by Jakub Kicinski
parent bf3be85dbe
commit 20a1b6bdca
2 changed files with 13 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/net/ethernet/atheros/atl1c/atl1c.h
View File

@ -475,13 +475,16 @@ struct atl1c_buffer {
/* transimit packet descriptor (tpd) ring */
struct atl1c_tpd_ring {
struct atl1c_adapter *adapter;
void *desc; /* descriptor ring virtual address */
dma_addr_t dma; /* descriptor ring physical address */
u16 num;
u16 size; /* descriptor ring length in bytes */
u16 count; /* number of descriptors in the ring */
u16 next_to_use;
atomic_t next_to_clean;
struct atl1c_buffer *buffer_info;
struct napi_struct napi;
};
/* receive free descriptor (rfd) ring */
@ -510,7 +513,6 @@ struct atl1c_adapter {
struct net_device *netdev;
struct pci_dev *pdev;
struct napi_struct napi;
struct napi_struct tx_napi;
struct page *rx_page;
unsigned int rx_page_offset;
unsigned int rx_frag_size;

18
drivers/net/ethernet/atheros/atl1c/atl1c_main.c
View File

@ -983,6 +983,8 @@ static int atl1c_setup_ring_resources(struct atl1c_adapter *adapter)
goto err_nomem;
for (i = 0; i < AT_MAX_TRANSMIT_QUEUE; i++) {
tpd_ring[i].adapter = adapter;
tpd_ring[i].num = i;
tpd_ring[i].buffer_info =
(tpd_ring->buffer_info + count);
count += tpd_ring[i].count;
@ -1533,9 +1535,9 @@ static inline void atl1c_clear_phy_int(struct atl1c_adapter *adapter)
static int atl1c_clean_tx(struct napi_struct *napi, int budget)
{
struct atl1c_adapter *adapter =
container_of(napi, struct atl1c_adapter, tx_napi);
struct atl1c_tpd_ring *tpd_ring = &adapter->tpd_ring[atl1c_trans_normal];
struct atl1c_tpd_ring *tpd_ring =
container_of(napi, struct atl1c_tpd_ring, napi);
struct atl1c_adapter *adapter = tpd_ring->adapter;
struct atl1c_buffer *buffer_info;
struct pci_dev *pdev = adapter->pdev;
u16 next_to_clean = atomic_read(&tpd_ring->next_to_clean);
@ -1615,12 +1617,12 @@ static irqreturn_t atl1c_intr(int irq, void *data)
}
}
if (status & ISR_TX_PKT) {
if (napi_schedule_prep(&adapter->tx_napi)) {
if (napi_schedule_prep(&adapter->tpd_ring[0].napi)) {
spin_lock(&hw->intr_mask_lock);
hw->intr_mask &= ~ISR_TX_PKT;
AT_WRITE_REG(hw, REG_IMR, hw->intr_mask);
spin_unlock(&hw->intr_mask_lock);
__napi_schedule(&adapter->tx_napi);
__napi_schedule(&adapter->tpd_ring[0].napi);
}
}
@ -2354,7 +2356,7 @@ static int atl1c_up(struct atl1c_adapter *adapter)
atl1c_check_link_status(adapter);
clear_bit(__AT_DOWN, &adapter->flags);
napi_enable(&adapter->napi);
napi_enable(&adapter->tx_napi);
napi_enable(&adapter->tpd_ring[0].napi);
atl1c_irq_enable(adapter);
netif_start_queue(netdev);
return err;
@ -2375,7 +2377,7 @@ static void atl1c_down(struct atl1c_adapter *adapter)
set_bit(__AT_DOWN, &adapter->flags);
netif_carrier_off(netdev);
napi_disable(&adapter->napi);
napi_disable(&adapter->tx_napi);
napi_disable(&adapter->tpd_ring[0].napi);
atl1c_irq_disable(adapter);
atl1c_free_irq(adapter);
/* disable ASPM if device inactive */
@ -2632,7 +2634,7 @@ static int atl1c_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
adapter->mii.reg_num_mask = MDIO_CTRL_REG_MASK;
dev_set_threaded(netdev, true);
netif_napi_add(netdev, &adapter->napi, atl1c_clean, 64);
netif_napi_add(netdev, &adapter->tx_napi, atl1c_clean_tx, 64);
netif_napi_add(netdev, &adapter->tpd_ring[0].napi, atl1c_clean_tx, 64);
timer_setup(&adapter->phy_config_timer, atl1c_phy_config, 0);
/* setup the private structure */
err = atl1c_sw_init(adapter);