diff options
Diffstat (limited to 'drivers/net/chelsio/tp.c')
| -rw-r--r-- | drivers/net/chelsio/tp.c | 62 |
1 files changed, 30 insertions, 32 deletions
diff --git a/drivers/net/chelsio/tp.c b/drivers/net/chelsio/tp.c index 0ca0b6e19e43..6222d585e447 100644 --- a/drivers/net/chelsio/tp.c +++ b/drivers/net/chelsio/tp.c @@ -17,39 +17,36 @@ struct petp { static void tp_init(adapter_t * ap, const struct tp_params *p, unsigned int tp_clk) { - if (t1_is_asic(ap)) { - u32 val; - - val = F_TP_IN_CSPI_CPL | F_TP_IN_CSPI_CHECK_IP_CSUM | - F_TP_IN_CSPI_CHECK_TCP_CSUM | F_TP_IN_ESPI_ETHERNET; - if (!p->pm_size) - val |= F_OFFLOAD_DISABLE; - else - val |= F_TP_IN_ESPI_CHECK_IP_CSUM | - F_TP_IN_ESPI_CHECK_TCP_CSUM; - writel(val, ap->regs + A_TP_IN_CONFIG); - writel(F_TP_OUT_CSPI_CPL | - F_TP_OUT_ESPI_ETHERNET | - F_TP_OUT_ESPI_GENERATE_IP_CSUM | - F_TP_OUT_ESPI_GENERATE_TCP_CSUM, - ap->regs + A_TP_OUT_CONFIG); - writel(V_IP_TTL(64) | - F_PATH_MTU /* IP DF bit */ | - V_5TUPLE_LOOKUP(p->use_5tuple_mode) | - V_SYN_COOKIE_PARAMETER(29), - ap->regs + A_TP_GLOBAL_CONFIG); - /* - * Enable pause frame deadlock prevention. - */ - if (is_T2(ap) && ap->params.nports > 1) { - u32 drop_ticks = DROP_MSEC * (tp_clk / 1000); - - writel(F_ENABLE_TX_DROP | F_ENABLE_TX_ERROR | - V_DROP_TICKS_CNT(drop_ticks) | - V_NUM_PKTS_DROPPED(DROP_PKTS_CNT), - ap->regs + A_TP_TX_DROP_CONFIG); - } + u32 val; + if (!t1_is_asic(ap)) + return; + + val = F_TP_IN_CSPI_CPL | F_TP_IN_CSPI_CHECK_IP_CSUM | + F_TP_IN_CSPI_CHECK_TCP_CSUM | F_TP_IN_ESPI_ETHERNET; + if (!p->pm_size) + val |= F_OFFLOAD_DISABLE; + else + val |= F_TP_IN_ESPI_CHECK_IP_CSUM | F_TP_IN_ESPI_CHECK_TCP_CSUM; + writel(val, ap->regs + A_TP_IN_CONFIG); + writel(F_TP_OUT_CSPI_CPL | + F_TP_OUT_ESPI_ETHERNET | + F_TP_OUT_ESPI_GENERATE_IP_CSUM | + F_TP_OUT_ESPI_GENERATE_TCP_CSUM, ap->regs + A_TP_OUT_CONFIG); + writel(V_IP_TTL(64) | + F_PATH_MTU /* IP DF bit */ | + V_5TUPLE_LOOKUP(p->use_5tuple_mode) | + V_SYN_COOKIE_PARAMETER(29), ap->regs + A_TP_GLOBAL_CONFIG); + /* + * Enable pause frame deadlock prevention. + */ + if (is_T2(ap) && ap->params.nports > 1) { + u32 drop_ticks = DROP_MSEC * (tp_clk / 1000); + + writel(F_ENABLE_TX_DROP | F_ENABLE_TX_ERROR | + V_DROP_TICKS_CNT(drop_ticks) | + V_NUM_PKTS_DROPPED(DROP_PKTS_CNT), + ap->regs + A_TP_TX_DROP_CONFIG); } } @@ -61,6 +58,7 @@ void t1_tp_destroy(struct petp *tp) struct petp *__devinit t1_tp_create(adapter_t * adapter, struct tp_params *p) { struct petp *tp = kzalloc(sizeof(*tp), GFP_KERNEL); + if (!tp) return NULL; |