From c8e9b92d2957a1d49abc7b81ba3f89ad530d617b Mon Sep 17 00:00:00 2001 From: Kevin Wern Date: Sat, 16 Jan 2016 13:44:41 -0800 Subject: [PATCH] staging/slicoss: Use ethtool_ops instead of module_param. ethtool_ops has attributes in sub struct ethtool_coalesce that correspond to the parameters intagg_delay and dynamic_intagg. It is preferable to set these properties with ethtool rather than module_param, so create these attributes in adapter and set them using ethtool_coalesce's rx_coalesce_usecs and rx_use_adaptive_coalesce. (Outlined in TODO file) Signed-off-by: Kevin Wern Signed-off-by: Greg Kroah-Hartman --- drivers/staging/slicoss/slic.h | 2 ++ drivers/staging/slicoss/slicoss.c | 41 +++++++++++++++++++++++-------- 2 files changed, 33 insertions(+), 10 deletions(-) diff --git a/drivers/staging/slicoss/slic.h b/drivers/staging/slicoss/slic.h index c95b3abad646..cc0afeeb68c1 100644 --- a/drivers/staging/slicoss/slic.h +++ b/drivers/staging/slicoss/slic.h @@ -478,6 +478,8 @@ struct adapter { u32 max_isr_xmits; u32 rcv_interrupt_yields; u32 intagg_period; + u32 intagg_delay; + u32 dynamic_intagg; struct inicpm_state *inicpm_info; void *pinicpm_info; struct slic_ifevents if_events; diff --git a/drivers/staging/slicoss/slicoss.c b/drivers/staging/slicoss/slicoss.c index b23a2d1f61a2..c490b7166a8d 100644 --- a/drivers/staging/slicoss/slicoss.c +++ b/drivers/staging/slicoss/slicoss.c @@ -102,8 +102,7 @@ static char *slic_banner = "Alacritech SLIC Technology(tm) Server and Storage Ac static char *slic_proc_version = "2.0.351 2006/07/14 12:26:00"; static struct base_driver slic_global = { {}, 0, 0, 0, 1, NULL, NULL }; -static int intagg_delay = 100; -static u32 dynamic_intagg; +#define DEFAULT_INTAGG_DELAY 100 static unsigned int rcv_count; #define DRV_NAME "slicoss" @@ -119,17 +118,14 @@ MODULE_AUTHOR(DRV_AUTHOR); MODULE_DESCRIPTION(DRV_DESCRIPTION); MODULE_LICENSE("Dual BSD/GPL"); -module_param(dynamic_intagg, int, 0); -MODULE_PARM_DESC(dynamic_intagg, "Dynamic Interrupt Aggregation Setting"); -module_param(intagg_delay, int, 0); -MODULE_PARM_DESC(intagg_delay, "uSec Interrupt Aggregation Delay"); - static const struct pci_device_id slic_pci_tbl[] = { { PCI_DEVICE(PCI_VENDOR_ID_ALACRITECH, SLIC_1GB_DEVICE_ID) }, { PCI_DEVICE(PCI_VENDOR_ID_ALACRITECH, SLIC_2GB_DEVICE_ID) }, { 0 } }; +static struct ethtool_ops slic_ethtool_ops; + MODULE_DEVICE_TABLE(pci, slic_pci_tbl); static inline void slic_reg32_write(void __iomem *reg, u32 value, bool flush) @@ -2860,7 +2856,7 @@ static int slic_card_init(struct sliccard *card, struct adapter *adapter) if (slic_global.dynamic_intagg) slic_intagg_set(adapter, 0); else - slic_intagg_set(adapter, intagg_delay); + slic_intagg_set(adapter, adapter->intagg_delay); /* * Initialize ping status to "ok" @@ -2881,6 +2877,26 @@ card_init_err: return status; } +static int slic_get_coalesce(struct net_device *dev, + struct ethtool_coalesce *coalesce) +{ + struct adapter *adapter = netdev_priv(dev); + + adapter->intagg_delay = coalesce->rx_coalesce_usecs; + adapter->dynamic_intagg = coalesce->use_adaptive_rx_coalesce; + return 0; +} + +static int slic_set_coalesce(struct net_device *dev, + struct ethtool_coalesce *coalesce) +{ + struct adapter *adapter = netdev_priv(dev); + + coalesce->rx_coalesce_usecs = adapter->intagg_delay; + coalesce->use_adaptive_rx_coalesce = adapter->dynamic_intagg; + return 0; +} + static void slic_init_driver(void) { if (slic_first_init) { @@ -3069,8 +3085,6 @@ static int slic_entry_probe(struct pci_dev *pcidev, struct sliccard *card = NULL; int pci_using_dac = 0; - slic_global.dynamic_intagg = dynamic_intagg; - err = pci_enable_device(pcidev); if (err) @@ -3112,12 +3126,14 @@ static int slic_entry_probe(struct pci_dev *pcidev, goto err_out_exit_slic_probe; } + netdev->ethtool_ops = &slic_ethtool_ops; SET_NETDEV_DEV(netdev, &pcidev->dev); pci_set_drvdata(pcidev, netdev); adapter = netdev_priv(netdev); adapter->netdev = netdev; adapter->pcidev = pcidev; + slic_global.dynamic_intagg = adapter->dynamic_intagg; if (pci_using_dac) netdev->features |= NETIF_F_HIGHDMA; @@ -3204,5 +3220,10 @@ static void __exit slic_module_cleanup(void) pci_unregister_driver(&slic_driver); } +static struct ethtool_ops slic_ethtool_ops = { + .get_coalesce = slic_get_coalesce, + .set_coalesce = slic_set_coalesce +}; + module_init(slic_module_init); module_exit(slic_module_cleanup); -- 2.30.2