-/*****************************************************************************
- * *
- * File: tp.c *
- * $Revision: 1.6 $ *
- * $Date: 2005/03/23 07:15:59 $ *
- * Description: *
- * Core ASIC Management. *
- * part of the Chelsio 10Gb Ethernet Driver. *
- * *
- * This program is free software; you can redistribute it and/or modify *
- * it under the terms of the GNU General Public License, version 2, as *
- * published by the Free Software Foundation. *
- * *
- * You should have received a copy of the GNU General Public License along *
- * with this program; if not, write to the Free Software Foundation, Inc., *
- * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
- * *
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED *
- * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF *
- * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. *
- * *
- * http://www.chelsio.com *
- * *
- * Copyright (c) 2003 - 2005 Chelsio Communications, Inc. *
- * All rights reserved. *
- * *
- * Maintainers: maintainers@chelsio.com *
- * *
- * Authors: Dimitrios Michailidis <dm@chelsio.com> *
- * Tina Yang <tainay@chelsio.com> *
- * Felix Marti <felix@chelsio.com> *
- * Scott Bardone <sbardone@chelsio.com> *
- * Kurt Ottaway <kottaway@chelsio.com> *
- * Frank DiMambro <frank@chelsio.com> *
- * *
- * History: *
- * *
- ****************************************************************************/
-
+/* $Date: 2006/02/07 04:21:54 $ $RCSfile: tp.c,v $ $Revision: 1.73 $ */
#include "common.h"
#include "regs.h"
#include "tp.h"
+#ifdef CONFIG_CHELSIO_T1_1G
+#include "fpga_defs.h"
+#endif
struct petp {
adapter_t *adapter;
#define DROP_MSEC 16
#define DROP_PKTS_CNT 1
-
-static void tp_init(adapter_t *ap, const struct tp_params *p,
+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;
- t1_write_reg_4(ap, A_TP_IN_CONFIG, val);
- t1_write_reg_4(ap, A_TP_OUT_CONFIG, F_TP_OUT_CSPI_CPL |
- F_TP_OUT_ESPI_ETHERNET |
- F_TP_OUT_ESPI_GENERATE_IP_CSUM |
- F_TP_OUT_ESPI_GENERATE_TCP_CSUM);
- t1_write_reg_4(ap, A_TP_GLOBAL_CONFIG, V_IP_TTL(64) |
- F_PATH_MTU /* IP DF bit */ |
- V_5TUPLE_LOOKUP(p->use_5tuple_mode) |
- V_SYN_COOKIE_PARAMETER(29));
-
- /*
- * Enable pause frame deadlock prevention.
- */
- if (is_T2(ap)) {
- u32 drop_ticks = DROP_MSEC * (tp_clk / 1000);
-
- t1_write_reg_4(ap, A_TP_TX_DROP_CONFIG,
- F_ENABLE_TX_DROP | F_ENABLE_TX_ERROR |
- V_DROP_TICKS_CNT(drop_ticks) |
- V_NUM_PKTS_DROPPED(DROP_PKTS_CNT));
- }
+ 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);
}
}
kfree(tp);
}
-struct petp * __devinit t1_tp_create(adapter_t *adapter, struct tp_params *p)
+struct petp *__devinit t1_tp_create(adapter_t * adapter, struct tp_params *p)
{
- struct petp *tp = kmalloc(sizeof(*tp), GFP_KERNEL);
+ struct petp *tp = kzalloc(sizeof(*tp), GFP_KERNEL);
+
if (!tp)
return NULL;
- memset(tp, 0, sizeof(*tp));
+
tp->adapter = adapter;
return tp;
void t1_tp_intr_enable(struct petp *tp)
{
- u32 tp_intr = t1_read_reg_4(tp->adapter, A_PL_ENABLE);
-
+ u32 tp_intr = readl(tp->adapter->regs + A_PL_ENABLE);
+
+#ifdef CONFIG_CHELSIO_T1_1G
+ if (!t1_is_asic(tp->adapter)) {
+ /* FPGA */
+ writel(0xffffffff,
+ tp->adapter->regs + FPGA_TP_ADDR_INTERRUPT_ENABLE);
+ writel(tp_intr | FPGA_PCIX_INTERRUPT_TP,
+ tp->adapter->regs + A_PL_ENABLE);
+ } else
+#endif
{
/* We don't use any TP interrupts */
- t1_write_reg_4(tp->adapter, A_TP_INT_ENABLE, 0);
- t1_write_reg_4(tp->adapter, A_PL_ENABLE,
- tp_intr | F_PL_INTR_TP);
+ writel(0, tp->adapter->regs + A_TP_INT_ENABLE);
+ writel(tp_intr | F_PL_INTR_TP,
+ tp->adapter->regs + A_PL_ENABLE);
}
}
void t1_tp_intr_disable(struct petp *tp)
{
- u32 tp_intr = t1_read_reg_4(tp->adapter, A_PL_ENABLE);
-
+ u32 tp_intr = readl(tp->adapter->regs + A_PL_ENABLE);
+
+#ifdef CONFIG_CHELSIO_T1_1G
+ if (!t1_is_asic(tp->adapter)) {
+ /* FPGA */
+ writel(0, tp->adapter->regs + FPGA_TP_ADDR_INTERRUPT_ENABLE);
+ writel(tp_intr & ~FPGA_PCIX_INTERRUPT_TP,
+ tp->adapter->regs + A_PL_ENABLE);
+ } else
+#endif
{
- t1_write_reg_4(tp->adapter, A_TP_INT_ENABLE, 0);
- t1_write_reg_4(tp->adapter, A_PL_ENABLE,
- tp_intr & ~F_PL_INTR_TP);
+ writel(0, tp->adapter->regs + A_TP_INT_ENABLE);
+ writel(tp_intr & ~F_PL_INTR_TP,
+ tp->adapter->regs + A_PL_ENABLE);
}
}
void t1_tp_intr_clear(struct petp *tp)
{
- t1_write_reg_4(tp->adapter, A_TP_INT_CAUSE, 0xffffffff);
- t1_write_reg_4(tp->adapter, A_PL_CAUSE, F_PL_INTR_TP);
+#ifdef CONFIG_CHELSIO_T1_1G
+ if (!t1_is_asic(tp->adapter)) {
+ writel(0xffffffff,
+ tp->adapter->regs + FPGA_TP_ADDR_INTERRUPT_CAUSE);
+ writel(FPGA_PCIX_INTERRUPT_TP, tp->adapter->regs + A_PL_CAUSE);
+ return;
+ }
+#endif
+ writel(0xffffffff, tp->adapter->regs + A_TP_INT_CAUSE);
+ writel(F_PL_INTR_TP, tp->adapter->regs + A_PL_CAUSE);
}
int t1_tp_intr_handler(struct petp *tp)
{
u32 cause;
+#ifdef CONFIG_CHELSIO_T1_1G
+ /* FPGA doesn't support TP interrupts. */
+ if (!t1_is_asic(tp->adapter))
+ return 1;
+#endif
- cause = t1_read_reg_4(tp->adapter, A_TP_INT_CAUSE);
- t1_write_reg_4(tp->adapter, A_TP_INT_CAUSE, cause);
+ cause = readl(tp->adapter->regs + A_TP_INT_CAUSE);
+ writel(cause, tp->adapter->regs + A_TP_INT_CAUSE);
return 0;
}
static void set_csum_offload(struct petp *tp, u32 csum_bit, int enable)
{
- u32 val = t1_read_reg_4(tp->adapter, A_TP_GLOBAL_CONFIG);
+ u32 val = readl(tp->adapter->regs + A_TP_GLOBAL_CONFIG);
if (enable)
val |= csum_bit;
else
val &= ~csum_bit;
- t1_write_reg_4(tp->adapter, A_TP_GLOBAL_CONFIG, val);
+ writel(val, tp->adapter->regs + A_TP_GLOBAL_CONFIG);
}
void t1_tp_set_ip_checksum_offload(struct petp *tp, int enable)
*/
int t1_tp_reset(struct petp *tp, struct tp_params *p, unsigned int tp_clk)
{
- int busy = 0;
adapter_t *adapter = tp->adapter;
tp_init(adapter, p, tp_clk);
- if (!busy)
- t1_write_reg_4(adapter, A_TP_RESET, F_TP_RESET);
- else
- CH_ERR("%s: TP initialization timed out\n",
- adapter->name);
- return busy;
+ writel(F_TP_RESET, adapter->regs + A_TP_RESET);
+ return 0;
}
projects / linux-2.6-omap-h63xx.git / blobdiff