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Date: Thu, 26 Mar 2009 19:39:24 -0700
From: Divy Le Ray <divy@...lsio.com>
To: davem@...emloft.net
Cc: netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
swise@...ngridcomputing.com
Subject: [PATCH 2.6.30 4/5] cxgb3: differentiate portx and Tx channels
From: Divy Le Ray <divy@...lsio.com>
Separate ports from H/W Tx channels.
Signed-off-by: Divy Le Ray <divy@...lsio.com>
---
drivers/net/cxgb3/common.h | 4 +++-
drivers/net/cxgb3/cxgb3_main.c | 4 ++--
drivers/net/cxgb3/t3_hw.c | 35 +++++++++++++++++++----------------
3 files changed, 24 insertions(+), 19 deletions(-)
diff --git a/drivers/net/cxgb3/common.h b/drivers/net/cxgb3/common.h
index 9ee021e..e508dc3 100644
--- a/drivers/net/cxgb3/common.h
+++ b/drivers/net/cxgb3/common.h
@@ -191,7 +191,8 @@ struct mdio_ops {
};
struct adapter_info {
- unsigned char nports; /* # of ports */
+ unsigned char nports0; /* # of ports on channel 0 */
+ unsigned char nports1; /* # of ports on channel 1 */
unsigned char phy_base_addr; /* MDIO PHY base address */
unsigned int gpio_out; /* GPIO output settings */
unsigned char gpio_intr[MAX_NPORTS]; /* GPIO PHY IRQ pins */
@@ -422,6 +423,7 @@ struct adapter_params {
unsigned short b_wnd[NCCTRL_WIN];
unsigned int nports; /* # of ethernet ports */
+ unsigned int chan_map; /* bitmap of in-use Tx channels */
unsigned int stats_update_period; /* MAC stats accumulation period */
unsigned int linkpoll_period; /* link poll period in 0.1s */
unsigned int rev; /* chip revision */
diff --git a/drivers/net/cxgb3/cxgb3_main.c b/drivers/net/cxgb3/cxgb3_main.c
old mode 100755
new mode 100644
index e2b1193..2c2aaa7
--- a/drivers/net/cxgb3/cxgb3_main.c
+++ b/drivers/net/cxgb3/cxgb3_main.c
@@ -3086,7 +3086,7 @@ static int __devinit init_one(struct pci_dev *pdev,
INIT_WORK(&adapter->fatal_error_handler_task, fatal_error_task);
INIT_DELAYED_WORK(&adapter->adap_check_task, t3_adap_check_task);
- for (i = 0; i < ai->nports; ++i) {
+ for (i = 0; i < ai->nports0 + ai->nports1; ++i) {
struct net_device *netdev;
netdev = alloc_etherdev_mq(sizeof(struct port_info), SGE_QSETS);
@@ -3176,7 +3176,7 @@ static int __devinit init_one(struct pci_dev *pdev,
out_free_dev:
iounmap(adapter->regs);
- for (i = ai->nports - 1; i >= 0; --i)
+ for (i = ai->nports0 + ai->nports1 - 1; i >= 0; --i)
if (adapter->port[i])
free_netdev(adapter->port[i]);
diff --git a/drivers/net/cxgb3/t3_hw.c b/drivers/net/cxgb3/t3_hw.c
old mode 100755
new mode 100644
index 7d8fbae..31ed31a
--- a/drivers/net/cxgb3/t3_hw.c
+++ b/drivers/net/cxgb3/t3_hw.c
@@ -493,20 +493,20 @@ int t3_phy_lasi_intr_handler(struct cphy *phy)
}
static const struct adapter_info t3_adap_info[] = {
- {2, 0,
+ {1, 1, 0,
F_GPIO2_OEN | F_GPIO4_OEN |
F_GPIO2_OUT_VAL | F_GPIO4_OUT_VAL, { S_GPIO3, S_GPIO5 }, 0,
&mi1_mdio_ops, "Chelsio PE9000"},
- {2, 0,
+ {1, 1, 0,
F_GPIO2_OEN | F_GPIO4_OEN |
F_GPIO2_OUT_VAL | F_GPIO4_OUT_VAL, { S_GPIO3, S_GPIO5 }, 0,
&mi1_mdio_ops, "Chelsio T302"},
- {1, 0,
+ {1, 0, 0,
F_GPIO1_OEN | F_GPIO6_OEN | F_GPIO7_OEN | F_GPIO10_OEN |
F_GPIO11_OEN | F_GPIO1_OUT_VAL | F_GPIO6_OUT_VAL | F_GPIO10_OUT_VAL,
{ 0 }, SUPPORTED_10000baseT_Full | SUPPORTED_AUI,
&mi1_mdio_ext_ops, "Chelsio T310"},
- {2, 0,
+ {1, 1, 0,
F_GPIO1_OEN | F_GPIO2_OEN | F_GPIO4_OEN | F_GPIO5_OEN | F_GPIO6_OEN |
F_GPIO7_OEN | F_GPIO10_OEN | F_GPIO11_OEN | F_GPIO1_OUT_VAL |
F_GPIO5_OUT_VAL | F_GPIO6_OUT_VAL | F_GPIO10_OUT_VAL,
@@ -514,7 +514,7 @@ static const struct adapter_info t3_adap_info[] = {
&mi1_mdio_ext_ops, "Chelsio T320"},
{},
{},
- {1, 0,
+ {1, 0, 0,
F_GPIO1_OEN | F_GPIO2_OEN | F_GPIO4_OEN | F_GPIO6_OEN | F_GPIO7_OEN |
F_GPIO10_OEN | F_GPIO1_OUT_VAL | F_GPIO6_OUT_VAL | F_GPIO10_OUT_VAL,
{ S_GPIO9 }, SUPPORTED_10000baseT_Full | SUPPORTED_AUI,
@@ -3227,20 +3227,22 @@ int t3_mps_set_active_ports(struct adapter *adap, unsigned int port_mask)
}
/*
- * Perform the bits of HW initialization that are dependent on the number
- * of available ports.
+ * Perform the bits of HW initialization that are dependent on the Tx
+ * channels being used.
*/
-static void init_hw_for_avail_ports(struct adapter *adap, int nports)
+static void chan_init_hw(struct adapter *adap, unsigned int chan_map)
{
int i;
- if (nports == 1) {
+ if (chan_map != 3) { /* one channel */
t3_set_reg_field(adap, A_ULPRX_CTL, F_ROUND_ROBIN, 0);
t3_set_reg_field(adap, A_ULPTX_CONFIG, F_CFG_RR_ARB, 0);
- t3_write_reg(adap, A_MPS_CFG, F_TPRXPORTEN | F_TPTXPORT0EN |
- F_PORT0ACTIVE | F_ENFORCEPKT);
- t3_write_reg(adap, A_PM1_TX_CFG, 0xffffffff);
- } else {
+ t3_write_reg(adap, A_MPS_CFG, F_TPRXPORTEN | F_ENFORCEPKT |
+ (chan_map == 1 ? F_TPTXPORT0EN | F_PORT0ACTIVE :
+ F_TPTXPORT1EN | F_PORT1ACTIVE));
+ t3_write_reg(adap, A_PM1_TX_CFG,
+ chan_map == 1 ? 0xffffffff : 0);
+ } else { /* two channels */
t3_set_reg_field(adap, A_ULPRX_CTL, 0, F_ROUND_ROBIN);
t3_set_reg_field(adap, A_ULPTX_CONFIG, 0, F_CFG_RR_ARB);
t3_write_reg(adap, A_ULPTX_DMA_WEIGHT,
@@ -3548,7 +3550,7 @@ int t3_init_hw(struct adapter *adapter, u32 fw_params)
t3_write_reg(adapter, A_PM1_RX_CFG, 0xffffffff);
t3_write_reg(adapter, A_PM1_RX_MODE, 0);
t3_write_reg(adapter, A_PM1_TX_MODE, 0);
- init_hw_for_avail_ports(adapter, adapter->params.nports);
+ chan_init_hw(adapter, adapter->params.chan_map);
t3_sge_init(adapter, &adapter->params.sge);
t3_write_reg(adapter, A_T3DBG_GPIO_ACT_LOW, calc_gpio_intr(adapter));
@@ -3785,7 +3787,8 @@ int t3_prep_adapter(struct adapter *adapter, const struct adapter_info *ai,
get_pci_mode(adapter, &adapter->params.pci);
adapter->params.info = ai;
- adapter->params.nports = ai->nports;
+ adapter->params.nports = ai->nports0 + ai->nports1;
+ adapter->params.chan_map = !!ai->nports0 | (!!ai->nports1 << 1);
adapter->params.rev = t3_read_reg(adapter, A_PL_REV);
/*
* We used to only run the "adapter check task" once a second if
@@ -3816,7 +3819,7 @@ int t3_prep_adapter(struct adapter *adapter, const struct adapter_info *ai,
mc7_prep(adapter, &adapter->pmtx, MC7_PMTX_BASE_ADDR, "PMTX");
mc7_prep(adapter, &adapter->cm, MC7_CM_BASE_ADDR, "CM");
- p->nchan = ai->nports;
+ p->nchan = adapter->params.chan_map == 3 ? 2 : 1;
p->pmrx_size = t3_mc7_size(&adapter->pmrx);
p->pmtx_size = t3_mc7_size(&adapter->pmtx);
p->cm_size = t3_mc7_size(&adapter->cm);
--
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