Messages in this thread Patch in this message | | | From | Thomas Bogendoerfer <> | Subject | [PATCH v2 net-next 09/15] net: sgi: ioc3-eth: split ring cleaning/freeing and allocation | Date | Thu, 29 Aug 2019 17:50:07 +0200 |
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Do tx ring cleaning and freeing of rx buffers, when chip is shutdown and allocate buffers before bringing chip up.
Signed-off-by: Thomas Bogendoerfer <tbogendoerfer@suse.de> --- drivers/net/ethernet/sgi/ioc3-eth.c | 28 +++++++++++++--------------- 1 file changed, 13 insertions(+), 15 deletions(-)
diff --git a/drivers/net/ethernet/sgi/ioc3-eth.c b/drivers/net/ethernet/sgi/ioc3-eth.c index 05db0d1aeb04..7d2372ef7872 100644 --- a/drivers/net/ethernet/sgi/ioc3-eth.c +++ b/drivers/net/ethernet/sgi/ioc3-eth.c @@ -108,6 +108,9 @@ static inline unsigned int ioc3_hash(const unsigned char *addr); static void ioc3_start(struct ioc3_private *ip); static inline void ioc3_stop(struct ioc3_private *ip); static void ioc3_init(struct net_device *dev); +static void ioc3_alloc_rx_bufs(struct net_device *dev); +static void ioc3_free_rx_bufs(struct ioc3_private *ip); +static inline void ioc3_clean_tx_ring(struct ioc3_private *ip); static const char ioc3_str[] = "IOC3 Ethernet"; static const struct ethtool_ops ioc3_ethtool_ops; @@ -660,7 +663,11 @@ static void ioc3_error(struct net_device *dev, u32 eisr) net_err_ratelimited("%s: TX PCI error.\n", dev->name); ioc3_stop(ip); + ioc3_free_rx_bufs(ip); + ioc3_clean_tx_ring(ip); + ioc3_init(dev); + ioc3_alloc_rx_bufs(dev); ioc3_start(ip); ioc3_mii_init(ip); @@ -829,16 +836,6 @@ static void ioc3_alloc_rx_bufs(struct net_device *dev) ip->rx_pi = RX_BUFFS; } -static void ioc3_init_rings(struct net_device *dev) -{ - struct ioc3_private *ip = netdev_priv(dev); - - ioc3_free_rx_bufs(ip); - ioc3_alloc_rx_bufs(dev); - - ioc3_clean_tx_ring(ip); -} - static inline void ioc3_ssram_disc(struct ioc3_private *ip) { struct ioc3_ethregs *regs = ip->regs; @@ -891,8 +888,6 @@ static void ioc3_init(struct net_device *dev) writel(ip->ehar_h, ®s->ehar_h); writel(ip->ehar_l, ®s->ehar_l); writel(42, ®s->ersr); /* XXX should be random */ - - ioc3_init_rings(dev); } static void ioc3_start(struct ioc3_private *ip) @@ -948,7 +943,9 @@ static int ioc3_open(struct net_device *dev) ip->ehar_h = 0; ip->ehar_l = 0; + ioc3_init(dev); + ioc3_alloc_rx_bufs(dev); ioc3_start(ip); ioc3_mii_start(ip); @@ -1218,7 +1215,6 @@ static int ioc3_probe(struct pci_dev *pdev, const struct pci_device_id *ent) } ioc3_init(dev); - ioc3_start(ip); ip->pdev = pdev; @@ -1269,9 +1265,7 @@ static int ioc3_probe(struct pci_dev *pdev, const struct pci_device_id *ent) return 0; out_stop: - ioc3_stop(ip); del_timer_sync(&ip->ioc3_timer); - ioc3_free_rx_bufs(ip); kfree(ip->rxr); kfree(ip->txr); out_res: @@ -1438,7 +1432,11 @@ static void ioc3_timeout(struct net_device *dev) spin_lock_irq(&ip->ioc3_lock); ioc3_stop(ip); + ioc3_free_rx_bufs(ip); + ioc3_clean_tx_ring(ip); + ioc3_init(dev); + ioc3_alloc_rx_bufs(dev); ioc3_start(ip); ioc3_mii_init(ip); ioc3_mii_start(ip); -- 2.13.7
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