*
* The module loadable parameters that are supported by the driver and a brief
* explaination of all the variables.
+ *
* rx_ring_num : This can be used to program the number of receive rings used
* in the driver.
- * rx_ring_sz: This defines the number of descriptors each ring can have. This
- * is also an array of size 8.
+ * rx_ring_sz: This defines the number of receive blocks each ring can have.
+ * This is also an array of size 8.
* rx_ring_mode: This defines the operation mode of all 8 rings. The valid
* values are 1, 2 and 3.
* tx_fifo_num: This defines the number of Tx FIFOs thats used int the driver.
* tx_fifo_len: This too is an array of 8. Each element defines the number of
* Tx descriptors that can be associated with each corresponding FIFO.
+ * intr_type: This defines the type of interrupt. The values can be 0(INTA),
+ * 1(MSI), 2(MSI_X). Default value is '0(INTA)'
+ * lro: Specifies whether to enable Large Receive Offload (LRO) or not.
+ * Possible values '1' for enable '0' for disable. Default is '0'
+ * lro_max_pkts: This parameter defines maximum number of packets can be
+ * aggregated as a single large packet
************************************************************************/
#include <linux/config.h>
#include <linux/ethtool.h>
#include <linux/workqueue.h>
#include <linux/if_vlan.h>
+#include <linux/ip.h>
+#include <linux/tcp.h>
+#include <net/tcp.h>
#include <asm/system.h>
#include <asm/uaccess.h>
#include <asm/io.h>
+#include <asm/div64.h>
/* local include */
#include "s2io.h"
#include "s2io-regs.h"
-#define DRV_VERSION "Version 2.0.9.4"
+#define DRV_VERSION "2.0.14.2"
/* S2io Driver name & version. */
static char s2io_driver_name[] = "Neterion";
static char s2io_driver_version[] = DRV_VERSION;
-int rxd_size[4] = {32,48,48,64};
-int rxd_count[4] = {127,85,85,63};
+static int rxd_size[4] = {32,48,48,64};
+static int rxd_count[4] = {127,85,85,63};
static inline int RXD_IS_UP2DT(RxD_t *rxdp)
{
#define LOW 2
static inline int rx_buffer_level(nic_t * sp, int rxb_size, int ring)
{
- int level = 0;
mac_info_t *mac_control;
mac_control = &sp->mac_control;
- if ((mac_control->rings[ring].pkt_cnt - rxb_size) > 16) {
- level = LOW;
- if (rxb_size <= rxd_count[sp->rxd_mode]) {
- level = PANIC;
- }
- }
-
- return level;
+ if (rxb_size <= rxd_count[sp->rxd_mode])
+ return PANIC;
+ else if ((mac_control->rings[ring].pkt_cnt - rxb_size) > 16)
+ return LOW;
+ return 0;
}
/* Ethtool related variables and Macros. */
{"tmac_mcst_frms"},
{"tmac_bcst_frms"},
{"tmac_pause_ctrl_frms"},
+ {"tmac_ttl_octets"},
+ {"tmac_ucst_frms"},
+ {"tmac_nucst_frms"},
{"tmac_any_err_frms"},
+ {"tmac_ttl_less_fb_octets"},
{"tmac_vld_ip_octets"},
{"tmac_vld_ip"},
{"tmac_drop_ip"},
{"rmac_vld_mcst_frms"},
{"rmac_vld_bcst_frms"},
{"rmac_in_rng_len_err_frms"},
+ {"rmac_out_rng_len_err_frms"},
{"rmac_long_frms"},
{"rmac_pause_ctrl_frms"},
+ {"rmac_unsup_ctrl_frms"},
+ {"rmac_ttl_octets"},
+ {"rmac_accepted_ucst_frms"},
+ {"rmac_accepted_nucst_frms"},
{"rmac_discarded_frms"},
+ {"rmac_drop_events"},
+ {"rmac_ttl_less_fb_octets"},
+ {"rmac_ttl_frms"},
{"rmac_usized_frms"},
{"rmac_osized_frms"},
{"rmac_frag_frms"},
{"rmac_jabber_frms"},
+ {"rmac_ttl_64_frms"},
+ {"rmac_ttl_65_127_frms"},
+ {"rmac_ttl_128_255_frms"},
+ {"rmac_ttl_256_511_frms"},
+ {"rmac_ttl_512_1023_frms"},
+ {"rmac_ttl_1024_1518_frms"},
{"rmac_ip"},
{"rmac_ip_octets"},
{"rmac_hdr_err_ip"},
{"rmac_tcp"},
{"rmac_udp"},
{"rmac_err_drp_udp"},
+ {"rmac_xgmii_err_sym"},
+ {"rmac_frms_q0"},
+ {"rmac_frms_q1"},
+ {"rmac_frms_q2"},
+ {"rmac_frms_q3"},
+ {"rmac_frms_q4"},
+ {"rmac_frms_q5"},
+ {"rmac_frms_q6"},
+ {"rmac_frms_q7"},
+ {"rmac_full_q0"},
+ {"rmac_full_q1"},
+ {"rmac_full_q2"},
+ {"rmac_full_q3"},
+ {"rmac_full_q4"},
+ {"rmac_full_q5"},
+ {"rmac_full_q6"},
+ {"rmac_full_q7"},
{"rmac_pause_cnt"},
+ {"rmac_xgmii_data_err_cnt"},
+ {"rmac_xgmii_ctrl_err_cnt"},
{"rmac_accepted_ip"},
{"rmac_err_tcp"},
+ {"rd_req_cnt"},
+ {"new_rd_req_cnt"},
+ {"new_rd_req_rtry_cnt"},
+ {"rd_rtry_cnt"},
+ {"wr_rtry_rd_ack_cnt"},
+ {"wr_req_cnt"},
+ {"new_wr_req_cnt"},
+ {"new_wr_req_rtry_cnt"},
+ {"wr_rtry_cnt"},
+ {"wr_disc_cnt"},
+ {"rd_rtry_wr_ack_cnt"},
+ {"txp_wr_cnt"},
+ {"txd_rd_cnt"},
+ {"txd_wr_cnt"},
+ {"rxd_rd_cnt"},
+ {"rxd_wr_cnt"},
+ {"txf_rd_cnt"},
+ {"rxf_wr_cnt"},
+ {"rmac_ttl_1519_4095_frms"},
+ {"rmac_ttl_4096_8191_frms"},
+ {"rmac_ttl_8192_max_frms"},
+ {"rmac_ttl_gt_max_frms"},
+ {"rmac_osized_alt_frms"},
+ {"rmac_jabber_alt_frms"},
+ {"rmac_gt_max_alt_frms"},
+ {"rmac_vlan_frms"},
+ {"rmac_len_discard"},
+ {"rmac_fcs_discard"},
+ {"rmac_pf_discard"},
+ {"rmac_da_discard"},
+ {"rmac_red_discard"},
+ {"rmac_rts_discard"},
+ {"rmac_ingm_full_discard"},
+ {"link_fault_cnt"},
{"\n DRIVER STATISTICS"},
{"single_bit_ecc_errs"},
{"double_bit_ecc_errs"},
+ {"parity_err_cnt"},
+ {"serious_err_cnt"},
+ {"soft_reset_cnt"},
+ {"fifo_full_cnt"},
+ {"ring_full_cnt"},
+ ("alarm_transceiver_temp_high"),
+ ("alarm_transceiver_temp_low"),
+ ("alarm_laser_bias_current_high"),
+ ("alarm_laser_bias_current_low"),
+ ("alarm_laser_output_power_high"),
+ ("alarm_laser_output_power_low"),
+ ("warn_transceiver_temp_high"),
+ ("warn_transceiver_temp_low"),
+ ("warn_laser_bias_current_high"),
+ ("warn_laser_bias_current_low"),
+ ("warn_laser_output_power_high"),
+ ("warn_laser_output_power_low"),
+ ("lro_aggregated_pkts"),
+ ("lro_flush_both_count"),
+ ("lro_out_of_sequence_pkts"),
+ ("lro_flush_due_to_max_pkts"),
+ ("lro_avg_aggr_pkts"),
};
#define S2IO_STAT_LEN sizeof(ethtool_stats_keys)/ ETH_GSTRING_LEN
* the XAUI.
*/
-#define SWITCH_SIGN 0xA5A5A5A5A5A5A5A5ULL
#define END_SIGN 0x0
-
-static u64 herc_act_dtx_cfg[] = {
+static const u64 herc_act_dtx_cfg[] = {
/* Set address */
0x8000051536750000ULL, 0x80000515367500E0ULL,
/* Write data */
END_SIGN
};
-static u64 xena_mdio_cfg[] = {
- /* Reset PMA PLL */
- 0xC001010000000000ULL, 0xC0010100000000E0ULL,
- 0xC0010100008000E4ULL,
- /* Remove Reset from PMA PLL */
- 0xC001010000000000ULL, 0xC0010100000000E0ULL,
- 0xC0010100000000E4ULL,
- END_SIGN
-};
-
-static u64 xena_dtx_cfg[] = {
+static const u64 xena_dtx_cfg[] = {
+ /* Set address */
0x8000051500000000ULL, 0x80000515000000E0ULL,
- 0x80000515D93500E4ULL, 0x8001051500000000ULL,
- 0x80010515000000E0ULL, 0x80010515001E00E4ULL,
- 0x8002051500000000ULL, 0x80020515000000E0ULL,
- 0x80020515F21000E4ULL,
- /* Set PADLOOPBACKN */
- 0x8002051500000000ULL, 0x80020515000000E0ULL,
- 0x80020515B20000E4ULL, 0x8003051500000000ULL,
- 0x80030515000000E0ULL, 0x80030515B20000E4ULL,
- 0x8004051500000000ULL, 0x80040515000000E0ULL,
- 0x80040515B20000E4ULL, 0x8005051500000000ULL,
- 0x80050515000000E0ULL, 0x80050515B20000E4ULL,
- SWITCH_SIGN,
- /* Remove PADLOOPBACKN */
+ /* Write data */
+ 0x80000515D9350004ULL, 0x80000515D93500E4ULL,
+ /* Set address */
+ 0x8001051500000000ULL, 0x80010515000000E0ULL,
+ /* Write data */
+ 0x80010515001E0004ULL, 0x80010515001E00E4ULL,
+ /* Set address */
0x8002051500000000ULL, 0x80020515000000E0ULL,
- 0x80020515F20000E4ULL, 0x8003051500000000ULL,
- 0x80030515000000E0ULL, 0x80030515F20000E4ULL,
- 0x8004051500000000ULL, 0x80040515000000E0ULL,
- 0x80040515F20000E4ULL, 0x8005051500000000ULL,
- 0x80050515000000E0ULL, 0x80050515F20000E4ULL,
+ /* Write data */
+ 0x80020515F2100004ULL, 0x80020515F21000E4ULL,
END_SIGN
};
* Constants for Fixing the MacAddress problem seen mostly on
* Alpha machines.
*/
-static u64 fix_mac[] = {
+static const u64 fix_mac[] = {
0x0060000000000000ULL, 0x0060600000000000ULL,
0x0040600000000000ULL, 0x0000600000000000ULL,
0x0020600000000000ULL, 0x0060600000000000ULL,
/* Module Loadable parameters. */
static unsigned int tx_fifo_num = 1;
static unsigned int tx_fifo_len[MAX_TX_FIFOS] =
- {[0 ...(MAX_TX_FIFOS - 1)] = 0 };
+ {DEFAULT_FIFO_0_LEN, [1 ...(MAX_TX_FIFOS - 1)] = DEFAULT_FIFO_1_7_LEN};
static unsigned int rx_ring_num = 1;
static unsigned int rx_ring_sz[MAX_RX_RINGS] =
- {[0 ...(MAX_RX_RINGS - 1)] = 0 };
+ {[0 ...(MAX_RX_RINGS - 1)] = SMALL_BLK_CNT};
static unsigned int rts_frm_len[MAX_RX_RINGS] =
{[0 ...(MAX_RX_RINGS - 1)] = 0 };
static unsigned int rx_ring_mode = 1;
static unsigned int use_continuous_tx_intrs = 1;
-static unsigned int rmac_pause_time = 65535;
+static unsigned int rmac_pause_time = 0x100;
static unsigned int mc_pause_threshold_q0q3 = 187;
static unsigned int mc_pause_threshold_q4q7 = 187;
static unsigned int shared_splits;
static unsigned int rxsync_frequency = 3;
/* Interrupt type. Values can be 0(INTA), 1(MSI), 2(MSI_X) */
static unsigned int intr_type = 0;
+/* Large receive offload feature */
+static unsigned int lro = 0;
+/* Max pkts to be aggregated by LRO at one time. If not specified,
+ * aggregation happens until we hit max IP pkt size(64K)
+ */
+static unsigned int lro_max_pkts = 0xFFFF;
/*
* S2IO device table.
rx_blocks->block_dma_addr +
(rxd_size[nic->rxd_mode] * l);
}
-
- mac_control->rings[i].rx_blocks[j].block_virt_addr =
- tmp_v_addr;
- mac_control->rings[i].rx_blocks[j].block_dma_addr =
- tmp_p_addr;
}
/* Interlinking all Rx Blocks */
for (j = 0; j < blk_cnt; j++) {
return mode;
}
+#define NEC_VENID 0x1033
+#define NEC_DEVID 0x0125
+static int s2io_on_nec_bridge(struct pci_dev *s2io_pdev)
+{
+ struct pci_dev *tdev = NULL;
+ while ((tdev = pci_find_device(PCI_ANY_ID, PCI_ANY_ID, tdev)) != NULL) {
+ if ((tdev->vendor == NEC_VENID) && (tdev->device == NEC_DEVID)){
+ if (tdev->bus == s2io_pdev->bus->parent)
+ return 1;
+ }
+ }
+ return 0;
+}
+static int bus_speed[8] = {33, 133, 133, 200, 266, 133, 200, 266};
/**
* s2io_print_pci_mode -
*/
if ( val64 & PCI_MODE_UNKNOWN_MODE)
return -1; /* Unknown PCI mode */
+ config->bus_speed = bus_speed[mode];
+
+ if (s2io_on_nec_bridge(nic->pdev)) {
+ DBG_PRINT(ERR_DBG, "%s: Device is on PCI-E bus\n",
+ nic->dev->name);
+ return mode;
+ }
+
if (val64 & PCI_MODE_32_BITS) {
DBG_PRINT(ERR_DBG, "%s: Device is on 32 bit ", nic->dev->name);
} else {
switch(mode) {
case PCI_MODE_PCI_33:
DBG_PRINT(ERR_DBG, "33MHz PCI bus\n");
- config->bus_speed = 33;
break;
case PCI_MODE_PCI_66:
DBG_PRINT(ERR_DBG, "66MHz PCI bus\n");
- config->bus_speed = 133;
break;
case PCI_MODE_PCIX_M1_66:
DBG_PRINT(ERR_DBG, "66MHz PCIX(M1) bus\n");
- config->bus_speed = 133; /* Herc doubles the clock rate */
break;
case PCI_MODE_PCIX_M1_100:
DBG_PRINT(ERR_DBG, "100MHz PCIX(M1) bus\n");
- config->bus_speed = 200;
break;
case PCI_MODE_PCIX_M1_133:
DBG_PRINT(ERR_DBG, "133MHz PCIX(M1) bus\n");
- config->bus_speed = 266;
break;
case PCI_MODE_PCIX_M2_66:
DBG_PRINT(ERR_DBG, "133MHz PCIX(M2) bus\n");
- config->bus_speed = 133;
break;
case PCI_MODE_PCIX_M2_100:
DBG_PRINT(ERR_DBG, "200MHz PCIX(M2) bus\n");
- config->bus_speed = 200;
break;
case PCI_MODE_PCIX_M2_133:
DBG_PRINT(ERR_DBG, "266MHz PCIX(M2) bus\n");
- config->bus_speed = 266;
break;
default:
return -1; /* Unsupported bus speed */
int i, j;
mac_info_t *mac_control;
struct config_param *config;
- int mdio_cnt = 0, dtx_cnt = 0;
+ int dtx_cnt = 0;
unsigned long long mem_share;
int mem_size;
val64 = dev->mtu;
writeq(vBIT(val64, 2, 14), &bar0->rmac_max_pyld_len);
- /*
- * Configuring the XAUI Interface of Xena.
- * ***************************************
- * To Configure the Xena's XAUI, one has to write a series
- * of 64 bit values into two registers in a particular
- * sequence. Hence a macro 'SWITCH_SIGN' has been defined
- * which will be defined in the array of configuration values
- * (xena_dtx_cfg & xena_mdio_cfg) at appropriate places
- * to switch writing from one regsiter to another. We continue
- * writing these values until we encounter the 'END_SIGN' macro.
- * For example, After making a series of 21 writes into
- * dtx_control register the 'SWITCH_SIGN' appears and hence we
- * start writing into mdio_control until we encounter END_SIGN.
- */
if (nic->device_type & XFRAME_II_DEVICE) {
while (herc_act_dtx_cfg[dtx_cnt] != END_SIGN) {
SPECIAL_REG_WRITE(herc_act_dtx_cfg[dtx_cnt],
dtx_cnt++;
}
} else {
- while (1) {
- dtx_cfg:
- while (xena_dtx_cfg[dtx_cnt] != END_SIGN) {
- if (xena_dtx_cfg[dtx_cnt] == SWITCH_SIGN) {
- dtx_cnt++;
- goto mdio_cfg;
- }
- SPECIAL_REG_WRITE(xena_dtx_cfg[dtx_cnt],
- &bar0->dtx_control, UF);
- val64 = readq(&bar0->dtx_control);
- dtx_cnt++;
- }
- mdio_cfg:
- while (xena_mdio_cfg[mdio_cnt] != END_SIGN) {
- if (xena_mdio_cfg[mdio_cnt] == SWITCH_SIGN) {
- mdio_cnt++;
- goto dtx_cfg;
- }
- SPECIAL_REG_WRITE(xena_mdio_cfg[mdio_cnt],
- &bar0->mdio_control, UF);
- val64 = readq(&bar0->mdio_control);
- mdio_cnt++;
- }
- if ((xena_dtx_cfg[dtx_cnt] == END_SIGN) &&
- (xena_mdio_cfg[mdio_cnt] == END_SIGN)) {
- break;
- } else {
- goto dtx_cfg;
- }
+ while (xena_dtx_cfg[dtx_cnt] != END_SIGN) {
+ SPECIAL_REG_WRITE(xena_dtx_cfg[dtx_cnt],
+ &bar0->dtx_control, UF);
+ val64 = readq(&bar0->dtx_control);
+ dtx_cnt++;
}
}
}
}
- /* Enable Tx FIFO partition 0. */
- val64 = readq(&bar0->tx_fifo_partition_0);
- val64 |= BIT(0); /* To enable the FIFO partition. */
- writeq(val64, &bar0->tx_fifo_partition_0);
-
/*
* Disable 4 PCCs for Xena1, 2 and 3 as per H/W bug
* SXE-008 TRANSMIT DMA ARBITRATION ISSUE.
break;
}
+ /* Enable Tx FIFO partition 0. */
+ val64 = readq(&bar0->tx_fifo_partition_0);
+ val64 |= (TX_FIFO_PARTITION_EN);
+ writeq(val64, &bar0->tx_fifo_partition_0);
+
/* Filling the Rx round robin registers as per the
* number of Rings and steering based on QoS.
*/
writel((u32) (val64 >> 32), (add + 4));
val64 = readq(&bar0->mac_cfg);
+ /* Enable FCS stripping by adapter */
+ add = &bar0->mac_cfg;
+ val64 = readq(&bar0->mac_cfg);
+ val64 |= MAC_CFG_RMAC_STRIP_FCS;
+ if (nic->device_type == XFRAME_II_DEVICE)
+ writeq(val64, &bar0->mac_cfg);
+ else {
+ writeq(RMAC_CFG_KEY(0x4C0D), &bar0->rmac_cfg_key);
+ writel((u32) (val64), add);
+ writeq(RMAC_CFG_KEY(0x4C0D), &bar0->rmac_cfg_key);
+ writel((u32) (val64 >> 32), (add + 4));
+ }
+
/*
* Set the time value to be inserted in the pause frame
* generated by xena.
val64 |= PIC_CNTL_SHARED_SPLITS(shared_splits);
writeq(val64, &bar0->pic_control);
+ if (nic->config.bus_speed == 266) {
+ writeq(TXREQTO_VAL(0x7f) | TXREQTO_EN, &bar0->txreqtimeout);
+ writeq(0x0, &bar0->read_retry_delay);
+ writeq(0x0, &bar0->write_retry_delay);
+ }
+
/*
* Programming the Herc to split every write transaction
* that does not start on an ADB to reduce disconnects.
*/
if (nic->device_type == XFRAME_II_DEVICE) {
- val64 = WREQ_SPLIT_MASK_SET_MASK(255);
- writeq(val64, &bar0->wreq_split_mask);
- }
-
- /* Setting Link stability period to 64 ms */
- if (nic->device_type == XFRAME_II_DEVICE) {
- val64 = MISC_LINK_STABILITY_PRD(3);
+ val64 = EXT_REQ_EN | MISC_LINK_STABILITY_PRD(3);
writeq(val64, &bar0->misc_control);
+ val64 = readq(&bar0->pic_control2);
+ val64 &= ~(BIT(13)|BIT(14)|BIT(15));
+ writeq(val64, &bar0->pic_control2);
+ }
+ if (strstr(nic->product_name, "CX4")) {
+ val64 = TMAC_AVG_IPG(0x17);
+ writeq(val64, &bar0->tmac_avg_ipg);
}
return SUCCESS;
val64 |= PRC_CTRL_RC_ENABLED;
else
val64 |= PRC_CTRL_RC_ENABLED | PRC_CTRL_RING_MODE_3;
+ if (nic->device_type == XFRAME_II_DEVICE)
+ val64 |= PRC_CTRL_GROUP_READS;
+ val64 &= ~PRC_CTRL_RXD_BACKOFF_INTERVAL(0xFFFFFF);
+ val64 |= PRC_CTRL_RXD_BACKOFF_INTERVAL(0x1000);
writeq(val64, &bar0->prc_ctrl_n[i]);
}
val64 |= ADAPTER_EOI_TX_ON;
writeq(val64, &bar0->adapter_control);
+ if (s2io_link_fault_indication(nic) == MAC_RMAC_ERR_TIMER) {
+ /*
+ * Dont see link state interrupts initally on some switches,
+ * so directly scheduling the link state task here.
+ */
+ schedule_work(&nic->set_link_task);
+ }
/* SXE-002: Initialize link and activity LED */
subid = nic->pdev->subsystem_device;
if (((subid & 0xFF) >= 0x07) &&
writeq(val64, (void __iomem *)bar0 + 0x2700);
}
- /*
- * Don't see link state interrupts on certain switches, so
- * directly scheduling a link state task from here.
- */
- schedule_work(&nic->set_link_task);
-
return SUCCESS;
}
/**
{
XENA_dev_config_t __iomem *bar0 = nic->bar0;
register u64 val64 = 0;
- u16 interruptible, i;
+ u16 interruptible;
mac_info_t *mac_control;
struct config_param *config;
interruptible |= TX_MAC_INTR | RX_MAC_INTR;
en_dis_able_nic_intrs(nic, interruptible, DISABLE_INTRS);
- /* Disable PRCs */
- for (i = 0; i < config->rx_ring_num; i++) {
- val64 = readq(&bar0->prc_ctrl_n[i]);
- val64 &= ~((u64) PRC_CTRL_RC_ENABLED);
- writeq(val64, &bar0->prc_ctrl_n[i]);
- }
+ /* Clearing Adapter_En bit of ADAPTER_CONTROL Register */
+ val64 = readq(&bar0->adapter_control);
+ val64 &= ~(ADAPTER_CNTL_EN);
+ writeq(val64, &bar0->adapter_control);
}
-int fill_rxd_3buf(nic_t *nic, RxD_t *rxdp, struct sk_buff *skb)
+static int fill_rxd_3buf(nic_t *nic, RxD_t *rxdp, struct sk_buff *skb)
{
struct net_device *dev = nic->dev;
struct sk_buff *frag_list;
alloc_cnt = mac_control->rings[ring_no].pkt_cnt -
atomic_read(&nic->rx_bufs_left[ring_no]);
+ block_no1 = mac_control->rings[ring_no].rx_curr_get_info.block_index;
+ off1 = mac_control->rings[ring_no].rx_curr_get_info.offset;
while (alloc_tab < alloc_cnt) {
block_no = mac_control->rings[ring_no].rx_curr_put_info.
block_index;
- block_no1 = mac_control->rings[ring_no].rx_curr_get_info.
- block_index;
off = mac_control->rings[ring_no].rx_curr_put_info.offset;
- off1 = mac_control->rings[ring_no].rx_curr_get_info.offset;
rxdp = mac_control->rings[ring_no].
rx_blocks[block_no].rxds[off].virt_addr;
memset(rxdp, 0, sizeof(RxD1_t));
skb_reserve(skb, NET_IP_ALIGN);
((RxD1_t*)rxdp)->Buffer0_ptr = pci_map_single
- (nic->pdev, skb->data, size, PCI_DMA_FROMDEVICE);
- rxdp->Control_2 &= (~MASK_BUFFER0_SIZE_1);
- rxdp->Control_2 |= SET_BUFFER0_SIZE_1(size);
+ (nic->pdev, skb->data, size - NET_IP_ALIGN,
+ PCI_DMA_FROMDEVICE);
+ rxdp->Control_2 = SET_BUFFER0_SIZE_1(size - NET_IP_ALIGN);
} else if (nic->rxd_mode >= RXD_MODE_3A) {
/*
mac_info_t *mac_control;
struct config_param *config;
XENA_dev_config_t __iomem *bar0 = nic->bar0;
- u64 val64;
+ u64 val64 = 0xFFFFFFFFFFFFFFFFULL;
int i;
atomic_inc(&nic->isr_cnt);
nic->pkts_to_process = dev->quota;
org_pkts_to_process = nic->pkts_to_process;
- val64 = readq(&bar0->rx_traffic_int);
writeq(val64, &bar0->rx_traffic_int);
+ val64 = readl(&bar0->rx_traffic_int);
for (i = 0; i < config->rx_ring_num; i++) {
rx_intr_handler(&mac_control->rings[i]);
}
}
/* Re enable the Rx interrupts. */
- en_dis_able_nic_intrs(nic, RX_TRAFFIC_INTR, ENABLE_INTRS);
+ writeq(0x0, &bar0->rx_traffic_mask);
+ val64 = readl(&bar0->rx_traffic_mask);
atomic_dec(&nic->isr_cnt);
return 0;
#ifndef CONFIG_S2IO_NAPI
int pkt_cnt = 0;
#endif
+ int i;
+
spin_lock(&nic->rx_lock);
if (atomic_read(&nic->card_state) == CARD_DOWN) {
DBG_PRINT(INTR_DBG, "%s: %s going down for reset\n",
((RxD3_t*)rxdp)->Buffer2_ptr,
dev->mtu, PCI_DMA_FROMDEVICE);
}
+ prefetch(skb->data);
rx_osm_handler(ring_data, rxdp);
get_info.offset++;
ring_data->rx_curr_get_info.offset = get_info.offset;
break;
#endif
}
+ if (nic->lro) {
+ /* Clear all LRO sessions before exiting */
+ for (i=0; i<MAX_LRO_SESSIONS; i++) {
+ lro_t *lro = &nic->lro0_n[i];
+ if (lro->in_use) {
+ update_L3L4_header(nic, lro);
+ queue_rx_frame(lro->parent);
+ clear_lro_session(lro);
+ }
+ }
+ }
+
spin_unlock(&nic->rx_lock);
}
if (txdlp->Control_1 & TXD_T_CODE) {
unsigned long long err;
err = txdlp->Control_1 & TXD_T_CODE;
+ if (err & 0x1) {
+ nic->mac_control.stats_info->sw_stat.
+ parity_err_cnt++;
+ }
if ((err >> 48) == 0xA) {
DBG_PRINT(TX_DBG, "TxD returned due \
to loss of link\n");
dev_kfree_skb_irq(skb);
get_info.offset++;
- get_info.offset %= get_info.fifo_len + 1;
+ if (get_info.offset == get_info.fifo_len + 1)
+ get_info.offset = 0;
txdlp = (TxD_t *) fifo_data->list_info
[get_info.offset].list_virt_addr;
fifo_data->tx_curr_get_info.offset =
spin_unlock(&nic->tx_lock);
}
+/**
+ * s2io_mdio_write - Function to write in to MDIO registers
+ * @mmd_type : MMD type value (PMA/PMD/WIS/PCS/PHYXS)
+ * @addr : address value
+ * @value : data value
+ * @dev : pointer to net_device structure
+ * Description:
+ * This function is used to write values to the MDIO registers
+ * NONE
+ */
+static void s2io_mdio_write(u32 mmd_type, u64 addr, u16 value, struct net_device *dev)
+{
+ u64 val64 = 0x0;
+ nic_t *sp = dev->priv;
+ XENA_dev_config_t *bar0 = (XENA_dev_config_t *)sp->bar0;
+
+ //address transaction
+ val64 = val64 | MDIO_MMD_INDX_ADDR(addr)
+ | MDIO_MMD_DEV_ADDR(mmd_type)
+ | MDIO_MMS_PRT_ADDR(0x0);
+ writeq(val64, &bar0->mdio_control);
+ val64 = val64 | MDIO_CTRL_START_TRANS(0xE);
+ writeq(val64, &bar0->mdio_control);
+ udelay(100);
+
+ //Data transaction
+ val64 = 0x0;
+ val64 = val64 | MDIO_MMD_INDX_ADDR(addr)
+ | MDIO_MMD_DEV_ADDR(mmd_type)
+ | MDIO_MMS_PRT_ADDR(0x0)
+ | MDIO_MDIO_DATA(value)
+ | MDIO_OP(MDIO_OP_WRITE_TRANS);
+ writeq(val64, &bar0->mdio_control);
+ val64 = val64 | MDIO_CTRL_START_TRANS(0xE);
+ writeq(val64, &bar0->mdio_control);
+ udelay(100);
+
+ val64 = 0x0;
+ val64 = val64 | MDIO_MMD_INDX_ADDR(addr)
+ | MDIO_MMD_DEV_ADDR(mmd_type)
+ | MDIO_MMS_PRT_ADDR(0x0)
+ | MDIO_OP(MDIO_OP_READ_TRANS);
+ writeq(val64, &bar0->mdio_control);
+ val64 = val64 | MDIO_CTRL_START_TRANS(0xE);
+ writeq(val64, &bar0->mdio_control);
+ udelay(100);
+
+}
+
+/**
+ * s2io_mdio_read - Function to write in to MDIO registers
+ * @mmd_type : MMD type value (PMA/PMD/WIS/PCS/PHYXS)
+ * @addr : address value
+ * @dev : pointer to net_device structure
+ * Description:
+ * This function is used to read values to the MDIO registers
+ * NONE
+ */
+static u64 s2io_mdio_read(u32 mmd_type, u64 addr, struct net_device *dev)
+{
+ u64 val64 = 0x0;
+ u64 rval64 = 0x0;
+ nic_t *sp = dev->priv;
+ XENA_dev_config_t *bar0 = (XENA_dev_config_t *)sp->bar0;
+
+ /* address transaction */
+ val64 = val64 | MDIO_MMD_INDX_ADDR(addr)
+ | MDIO_MMD_DEV_ADDR(mmd_type)
+ | MDIO_MMS_PRT_ADDR(0x0);
+ writeq(val64, &bar0->mdio_control);
+ val64 = val64 | MDIO_CTRL_START_TRANS(0xE);
+ writeq(val64, &bar0->mdio_control);
+ udelay(100);
+
+ /* Data transaction */
+ val64 = 0x0;
+ val64 = val64 | MDIO_MMD_INDX_ADDR(addr)
+ | MDIO_MMD_DEV_ADDR(mmd_type)
+ | MDIO_MMS_PRT_ADDR(0x0)
+ | MDIO_OP(MDIO_OP_READ_TRANS);
+ writeq(val64, &bar0->mdio_control);
+ val64 = val64 | MDIO_CTRL_START_TRANS(0xE);
+ writeq(val64, &bar0->mdio_control);
+ udelay(100);
+
+ /* Read the value from regs */
+ rval64 = readq(&bar0->mdio_control);
+ rval64 = rval64 & 0xFFFF0000;
+ rval64 = rval64 >> 16;
+ return rval64;
+}
+/**
+ * s2io_chk_xpak_counter - Function to check the status of the xpak counters
+ * @counter : couter value to be updated
+ * @flag : flag to indicate the status
+ * @type : counter type
+ * Description:
+ * This function is to check the status of the xpak counters value
+ * NONE
+ */
+
+static void s2io_chk_xpak_counter(u64 *counter, u64 * regs_stat, u32 index, u16 flag, u16 type)
+{
+ u64 mask = 0x3;
+ u64 val64;
+ int i;
+ for(i = 0; i <index; i++)
+ mask = mask << 0x2;
+
+ if(flag > 0)
+ {
+ *counter = *counter + 1;
+ val64 = *regs_stat & mask;
+ val64 = val64 >> (index * 0x2);
+ val64 = val64 + 1;
+ if(val64 == 3)
+ {
+ switch(type)
+ {
+ case 1:
+ DBG_PRINT(ERR_DBG, "Take Xframe NIC out of "
+ "service. Excessive temperatures may "
+ "result in premature transceiver "
+ "failure \n");
+ break;
+ case 2:
+ DBG_PRINT(ERR_DBG, "Take Xframe NIC out of "
+ "service Excessive bias currents may "
+ "indicate imminent laser diode "
+ "failure \n");
+ break;
+ case 3:
+ DBG_PRINT(ERR_DBG, "Take Xframe NIC out of "
+ "service Excessive laser output "
+ "power may saturate far-end "
+ "receiver\n");
+ break;
+ default:
+ DBG_PRINT(ERR_DBG, "Incorrect XPAK Alarm "
+ "type \n");
+ }
+ val64 = 0x0;
+ }
+ val64 = val64 << (index * 0x2);
+ *regs_stat = (*regs_stat & (~mask)) | (val64);
+
+ } else {
+ *regs_stat = *regs_stat & (~mask);
+ }
+}
+
+/**
+ * s2io_updt_xpak_counter - Function to update the xpak counters
+ * @dev : pointer to net_device struct
+ * Description:
+ * This function is to upate the status of the xpak counters value
+ * NONE
+ */
+static void s2io_updt_xpak_counter(struct net_device *dev)
+{
+ u16 flag = 0x0;
+ u16 type = 0x0;
+ u16 val16 = 0x0;
+ u64 val64 = 0x0;
+ u64 addr = 0x0;
+
+ nic_t *sp = dev->priv;
+ StatInfo_t *stat_info = sp->mac_control.stats_info;
+
+ /* Check the communication with the MDIO slave */
+ addr = 0x0000;
+ val64 = 0x0;
+ val64 = s2io_mdio_read(MDIO_MMD_PMA_DEV_ADDR, addr, dev);
+ if((val64 == 0xFFFF) || (val64 == 0x0000))
+ {
+ DBG_PRINT(ERR_DBG, "ERR: MDIO slave access failed - "
+ "Returned %llx\n", (unsigned long long)val64);
+ return;
+ }
+
+ /* Check for the expecte value of 2040 at PMA address 0x0000 */
+ if(val64 != 0x2040)
+ {
+ DBG_PRINT(ERR_DBG, "Incorrect value at PMA address 0x0000 - ");
+ DBG_PRINT(ERR_DBG, "Returned: %llx- Expected: 0x2040\n",
+ (unsigned long long)val64);
+ return;
+ }
+
+ /* Loading the DOM register to MDIO register */
+ addr = 0xA100;
+ s2io_mdio_write(MDIO_MMD_PMA_DEV_ADDR, addr, val16, dev);
+ val64 = s2io_mdio_read(MDIO_MMD_PMA_DEV_ADDR, addr, dev);
+
+ /* Reading the Alarm flags */
+ addr = 0xA070;
+ val64 = 0x0;
+ val64 = s2io_mdio_read(MDIO_MMD_PMA_DEV_ADDR, addr, dev);
+
+ flag = CHECKBIT(val64, 0x7);
+ type = 1;
+ s2io_chk_xpak_counter(&stat_info->xpak_stat.alarm_transceiver_temp_high,
+ &stat_info->xpak_stat.xpak_regs_stat,
+ 0x0, flag, type);
+
+ if(CHECKBIT(val64, 0x6))
+ stat_info->xpak_stat.alarm_transceiver_temp_low++;
+
+ flag = CHECKBIT(val64, 0x3);
+ type = 2;
+ s2io_chk_xpak_counter(&stat_info->xpak_stat.alarm_laser_bias_current_high,
+ &stat_info->xpak_stat.xpak_regs_stat,
+ 0x2, flag, type);
+
+ if(CHECKBIT(val64, 0x2))
+ stat_info->xpak_stat.alarm_laser_bias_current_low++;
+
+ flag = CHECKBIT(val64, 0x1);
+ type = 3;
+ s2io_chk_xpak_counter(&stat_info->xpak_stat.alarm_laser_output_power_high,
+ &stat_info->xpak_stat.xpak_regs_stat,
+ 0x4, flag, type);
+
+ if(CHECKBIT(val64, 0x0))
+ stat_info->xpak_stat.alarm_laser_output_power_low++;
+
+ /* Reading the Warning flags */
+ addr = 0xA074;
+ val64 = 0x0;
+ val64 = s2io_mdio_read(MDIO_MMD_PMA_DEV_ADDR, addr, dev);
+
+ if(CHECKBIT(val64, 0x7))
+ stat_info->xpak_stat.warn_transceiver_temp_high++;
+
+ if(CHECKBIT(val64, 0x6))
+ stat_info->xpak_stat.warn_transceiver_temp_low++;
+
+ if(CHECKBIT(val64, 0x3))
+ stat_info->xpak_stat.warn_laser_bias_current_high++;
+
+ if(CHECKBIT(val64, 0x2))
+ stat_info->xpak_stat.warn_laser_bias_current_low++;
+
+ if(CHECKBIT(val64, 0x1))
+ stat_info->xpak_stat.warn_laser_output_power_high++;
+
+ if(CHECKBIT(val64, 0x0))
+ stat_info->xpak_stat.warn_laser_output_power_low++;
+}
+
/**
* alarm_intr_handler - Alarm Interrrupt handler
* @nic: device private variable
struct net_device *dev = (struct net_device *) nic->dev;
XENA_dev_config_t __iomem *bar0 = nic->bar0;
register u64 val64 = 0, err_reg = 0;
+ u64 cnt;
+ int i;
+ nic->mac_control.stats_info->sw_stat.ring_full_cnt = 0;
+ /* Handling the XPAK counters update */
+ if(nic->mac_control.stats_info->xpak_stat.xpak_timer_count < 72000) {
+ /* waiting for an hour */
+ nic->mac_control.stats_info->xpak_stat.xpak_timer_count++;
+ } else {
+ s2io_updt_xpak_counter(dev);
+ /* reset the count to zero */
+ nic->mac_control.stats_info->xpak_stat.xpak_timer_count = 0;
+ }
/* Handling link status change error Intr */
if (s2io_link_fault_indication(nic) == MAC_RMAC_ERR_TIMER) {
MC_ERR_REG_MIRI_ECC_DB_ERR_1)) {
netif_stop_queue(dev);
schedule_work(&nic->rst_timer_task);
+ nic->mac_control.stats_info->sw_stat.
+ soft_reset_cnt++;
}
}
} else {
/* In case of a serious error, the device will be Reset. */
val64 = readq(&bar0->serr_source);
if (val64 & SERR_SOURCE_ANY) {
+ nic->mac_control.stats_info->sw_stat.serious_err_cnt++;
DBG_PRINT(ERR_DBG, "%s: Device indicates ", dev->name);
DBG_PRINT(ERR_DBG, "serious error %llx!!\n",
(unsigned long long)val64);
netif_stop_queue(dev);
schedule_work(&nic->rst_timer_task);
+ nic->mac_control.stats_info->sw_stat.soft_reset_cnt++;
}
/*
ac = readq(&bar0->adapter_control);
schedule_work(&nic->set_link_task);
}
+ /* Check for data parity error */
+ val64 = readq(&bar0->pic_int_status);
+ if (val64 & PIC_INT_GPIO) {
+ val64 = readq(&bar0->gpio_int_reg);
+ if (val64 & GPIO_INT_REG_DP_ERR_INT) {
+ nic->mac_control.stats_info->sw_stat.parity_err_cnt++;
+ schedule_work(&nic->rst_timer_task);
+ nic->mac_control.stats_info->sw_stat.soft_reset_cnt++;
+ }
+ }
+
+ /* Check for ring full counter */
+ if (nic->device_type & XFRAME_II_DEVICE) {
+ val64 = readq(&bar0->ring_bump_counter1);
+ for (i=0; i<4; i++) {
+ cnt = ( val64 & vBIT(0xFFFF,(i*16),16));
+ cnt >>= 64 - ((i+1)*16);
+ nic->mac_control.stats_info->sw_stat.ring_full_cnt
+ += cnt;
+ }
+
+ val64 = readq(&bar0->ring_bump_counter2);
+ for (i=0; i<4; i++) {
+ cnt = ( val64 & vBIT(0xFFFF,(i*16),16));
+ cnt >>= 64 - ((i+1)*16);
+ nic->mac_control.stats_info->sw_stat.ring_full_cnt
+ += cnt;
+ }
+ }
/* Other type of interrupts are not being handled now, TODO */
}
* SUCCESS on success and FAILURE on failure.
*/
-static int wait_for_cmd_complete(nic_t * sp)
+static int wait_for_cmd_complete(void *addr, u64 busy_bit)
{
- XENA_dev_config_t __iomem *bar0 = sp->bar0;
int ret = FAILURE, cnt = 0;
u64 val64;
while (TRUE) {
- val64 = readq(&bar0->rmac_addr_cmd_mem);
- if (!(val64 & RMAC_ADDR_CMD_MEM_STROBE_CMD_EXECUTING)) {
+ val64 = readq(addr);
+ if (!(val64 & busy_bit)) {
ret = SUCCESS;
break;
}
- msleep(50);
+
+ if(in_interrupt())
+ mdelay(50);
+ else
+ msleep(50);
+
if (cnt++ > 10)
break;
}
-
return ret;
}
* void.
*/
-void s2io_reset(nic_t * sp)
+static void s2io_reset(nic_t * sp)
{
XENA_dev_config_t __iomem *bar0 = sp->bar0;
u64 val64;
* PCI write to sw_reset register is done by this time.
*/
msleep(250);
+ if (strstr(sp->product_name, "CX4")) {
+ msleep(750);
+ }
/* Restore the PCI state saved during initialization. */
pci_restore_state(sp->pdev);
* SUCCESS on success and FAILURE on failure.
*/
-int s2io_set_swapper(nic_t * sp)
+static int s2io_set_swapper(nic_t * sp)
{
struct net_device *dev = sp->dev;
XENA_dev_config_t __iomem *bar0 = sp->bar0;
return ret;
}
-void restore_xmsi_data(nic_t *nic)
+static void restore_xmsi_data(nic_t *nic)
{
XENA_dev_config_t __iomem *bar0 = nic->bar0;
u64 val64;
int i;
- for (i=0; i< MAX_REQUESTED_MSI_X; i++) {
+ for (i=0; i< nic->avail_msix_vectors; i++) {
writeq(nic->msix_info[i].addr, &bar0->xmsi_address);
writeq(nic->msix_info[i].data, &bar0->xmsi_data);
val64 = (BIT(7) | BIT(15) | vBIT(i, 26, 6));
int i;
/* Store and display */
- for (i=0; i< MAX_REQUESTED_MSI_X; i++) {
+ for (i=0; i< nic->avail_msix_vectors; i++) {
val64 = (BIT(15) | vBIT(i, 26, 6));
writeq(val64, &bar0->xmsi_access);
if (wait_for_msix_trans(nic, i)) {
return 0;
}
-int s2io_enable_msi_x(nic_t *nic)
+static int s2io_enable_msi_x(nic_t *nic)
{
XENA_dev_config_t __iomem *bar0 = nic->bar0;
u64 tx_mat, rx_mat;
writeq(tx_mat, &bar0->tx_mat0_n[7]);
}
+ nic->avail_msix_vectors = 0;
ret = pci_enable_msix(nic->pdev, nic->entries, MAX_REQUESTED_MSI_X);
+ /* We fail init if error or we get less vectors than min required */
+ if (ret >= (nic->config.tx_fifo_num + nic->config.rx_ring_num + 1)) {
+ nic->avail_msix_vectors = ret;
+ ret = pci_enable_msix(nic->pdev, nic->entries, ret);
+ }
if (ret) {
DBG_PRINT(ERR_DBG, "%s: Enabling MSIX failed\n", nic->dev->name);
kfree(nic->entries);
kfree(nic->s2io_entries);
nic->entries = NULL;
nic->s2io_entries = NULL;
+ nic->avail_msix_vectors = 0;
return -ENOMEM;
}
+ if (!nic->avail_msix_vectors)
+ nic->avail_msix_vectors = MAX_REQUESTED_MSI_X;
/*
* To enable MSI-X, MSI also needs to be enabled, due to a bug
{
nic_t *sp = dev->priv;
int err = 0;
- int i;
- u16 msi_control; /* Temp variable */
/*
* Make sure you have link off by default every time
sp->last_link_state = 0;
/* Initialize H/W and enable interrupts */
- if (s2io_card_up(sp)) {
+ err = s2io_card_up(sp);
+ if (err) {
DBG_PRINT(ERR_DBG, "%s: H/W initialization failed\n",
dev->name);
- err = -ENODEV;
- goto hw_init_failed;
+ if (err == -ENODEV)
+ goto hw_init_failed;
+ else
+ goto hw_enable_failed;
}
/* Store the values of the MSIX table in the nic_t structure */
}
}
if (sp->intr_type == MSI_X) {
+ int i;
+
for (i=1; (sp->s2io_entries[i].in_use == MSIX_FLG); i++) {
if (sp->s2io_entries[i].type == MSIX_FIFO_TYPE) {
sprintf(sp->desc1, "%s:MSI-X-%d-TX",
isr_registration_failed:
del_timer_sync(&sp->alarm_timer);
if (sp->intr_type == MSI_X) {
- if (sp->device_type == XFRAME_II_DEVICE) {
- for (i=1; (sp->s2io_entries[i].in_use ==
- MSIX_REGISTERED_SUCCESS); i++) {
- int vector = sp->entries[i].vector;
- void *arg = sp->s2io_entries[i].arg;
+ int i;
+ u16 msi_control; /* Temp variable */
- free_irq(vector, arg);
- }
- pci_disable_msix(sp->pdev);
+ for (i=1; (sp->s2io_entries[i].in_use ==
+ MSIX_REGISTERED_SUCCESS); i++) {
+ int vector = sp->entries[i].vector;
+ void *arg = sp->s2io_entries[i].arg;
- /* Temp */
- pci_read_config_word(sp->pdev, 0x42, &msi_control);
- msi_control &= 0xFFFE; /* Disable MSI */
- pci_write_config_word(sp->pdev, 0x42, msi_control);
+ free_irq(vector, arg);
}
+ pci_disable_msix(sp->pdev);
+
+ /* Temp */
+ pci_read_config_word(sp->pdev, 0x42, &msi_control);
+ msi_control &= 0xFFFE; /* Disable MSI */
+ pci_write_config_word(sp->pdev, 0x42, msi_control);
}
else if (sp->intr_type == MSI)
pci_disable_msi(sp->pdev);
+hw_enable_failed:
s2io_reset(sp);
hw_init_failed:
if (sp->intr_type == MSI_X) {
static int s2io_close(struct net_device *dev)
{
nic_t *sp = dev->priv;
- int i;
- u16 msi_control;
flush_scheduled_work();
netif_stop_queue(dev);
/* Reset card, kill tasklet and free Tx and Rx buffers. */
- s2io_card_down(sp);
-
- if (sp->intr_type == MSI_X) {
- if (sp->device_type == XFRAME_II_DEVICE) {
- for (i=1; (sp->s2io_entries[i].in_use ==
- MSIX_REGISTERED_SUCCESS); i++) {
- int vector = sp->entries[i].vector;
- void *arg = sp->s2io_entries[i].arg;
-
- free_irq(vector, arg);
- }
- pci_read_config_word(sp->pdev, 0x42, &msi_control);
- msi_control &= 0xFFFE; /* Disable MSI */
- pci_write_config_word(sp->pdev, 0x42, msi_control);
+ s2io_card_down(sp, 1);
- pci_disable_msix(sp->pdev);
- }
- }
- else {
- free_irq(sp->pdev->irq, dev);
- if (sp->intr_type == MSI)
- pci_disable_msi(sp->pdev);
- }
sp->device_close_flag = TRUE; /* Device is shut down. */
return 0;
}
queue_len = mac_control->fifos[queue].tx_curr_put_info.fifo_len + 1;
/* Avoid "put" pointer going beyond "get" pointer */
- if (txdp->Host_Control || (((put_off + 1) % queue_len) == get_off)) {
+ if (txdp->Host_Control ||
+ ((put_off+1) == queue_len ? 0 : (put_off+1)) == get_off) {
DBG_PRINT(TX_DBG, "Error in xmit, No free TXDs.\n");
netif_stop_queue(dev);
dev_kfree_skb(skb);
mmiowb();
put_off++;
- put_off %= mac_control->fifos[queue].tx_curr_put_info.fifo_len + 1;
+ if (put_off == mac_control->fifos[queue].tx_curr_put_info.fifo_len + 1)
+ put_off = 0;
mac_control->fifos[queue].tx_curr_put_info.offset = put_off;
/* Avoid "put" pointer going beyond "get" pointer */
- if (((put_off + 1) % queue_len) == get_off) {
+ if (((put_off+1) == queue_len ? 0 : (put_off+1)) == get_off) {
+ sp->mac_control.stats_info->sw_stat.fifo_full_cnt++;
DBG_PRINT(TX_DBG,
"No free TxDs for xmit, Put: 0x%x Get:0x%x\n",
put_off, get_off);
* else schedule a tasklet to reallocate the buffers.
*/
for (i = 0; i < config->rx_ring_num; i++) {
- int rxb_size = atomic_read(&sp->rx_bufs_left[i]);
- int level = rx_buffer_level(sp, rxb_size, i);
-
- if ((level == PANIC) && (!TASKLET_IN_USE)) {
- DBG_PRINT(INTR_DBG, "%s: Rx BD hit ", dev->name);
- DBG_PRINT(INTR_DBG, "PANIC levels\n");
- if ((ret = fill_rx_buffers(sp, i)) == -ENOMEM) {
- DBG_PRINT(ERR_DBG, "%s:Out of memory",
- dev->name);
- DBG_PRINT(ERR_DBG, " in ISR!!\n");
+ if (!sp->lro) {
+ int rxb_size = atomic_read(&sp->rx_bufs_left[i]);
+ int level = rx_buffer_level(sp, rxb_size, i);
+
+ if ((level == PANIC) && (!TASKLET_IN_USE)) {
+ DBG_PRINT(INTR_DBG, "%s: Rx BD hit ",
+ dev->name);
+ DBG_PRINT(INTR_DBG, "PANIC levels\n");
+ if ((ret = fill_rx_buffers(sp, i)) == -ENOMEM) {
+ DBG_PRINT(ERR_DBG, "%s:Out of memory",
+ dev->name);
+ DBG_PRINT(ERR_DBG, " in ISR!!\n");
+ clear_bit(0, (&sp->tasklet_status));
+ atomic_dec(&sp->isr_cnt);
+ return IRQ_HANDLED;
+ }
clear_bit(0, (&sp->tasklet_status));
- atomic_dec(&sp->isr_cnt);
- return IRQ_HANDLED;
+ } else if (level == LOW) {
+ tasklet_schedule(&sp->task);
}
- clear_bit(0, (&sp->tasklet_status));
- } else if (level == LOW) {
- tasklet_schedule(&sp->task);
+ }
+ else if (fill_rx_buffers(sp, i) == -ENOMEM) {
+ DBG_PRINT(ERR_DBG, "%s:Out of memory",
+ dev->name);
+ DBG_PRINT(ERR_DBG, " in Rx Intr!!\n");
+ break;
}
}
{
ring_info_t *ring = (ring_info_t *)dev_id;
nic_t *sp = ring->nic;
+ struct net_device *dev = (struct net_device *) dev_id;
int rxb_size, level, rng_n;
atomic_inc(&sp->isr_cnt);
rx_intr_handler(ring);
rng_n = ring->ring_no;
- rxb_size = atomic_read(&sp->rx_bufs_left[rng_n]);
- level = rx_buffer_level(sp, rxb_size, rng_n);
-
- if ((level == PANIC) && (!TASKLET_IN_USE)) {
- int ret;
- DBG_PRINT(INTR_DBG, "%s: Rx BD hit ", __FUNCTION__);
- DBG_PRINT(INTR_DBG, "PANIC levels\n");
- if ((ret = fill_rx_buffers(sp, rng_n)) == -ENOMEM) {
- DBG_PRINT(ERR_DBG, "Out of memory in %s",
- __FUNCTION__);
+ if (!sp->lro) {
+ rxb_size = atomic_read(&sp->rx_bufs_left[rng_n]);
+ level = rx_buffer_level(sp, rxb_size, rng_n);
+
+ if ((level == PANIC) && (!TASKLET_IN_USE)) {
+ int ret;
+ DBG_PRINT(INTR_DBG, "%s: Rx BD hit ", __FUNCTION__);
+ DBG_PRINT(INTR_DBG, "PANIC levels\n");
+ if ((ret = fill_rx_buffers(sp, rng_n)) == -ENOMEM) {
+ DBG_PRINT(ERR_DBG, "Out of memory in %s",
+ __FUNCTION__);
+ clear_bit(0, (&sp->tasklet_status));
+ return IRQ_HANDLED;
+ }
clear_bit(0, (&sp->tasklet_status));
- return IRQ_HANDLED;
+ } else if (level == LOW) {
+ tasklet_schedule(&sp->task);
}
- clear_bit(0, (&sp->tasklet_status));
- } else if (level == LOW) {
- tasklet_schedule(&sp->task);
}
+ else if (fill_rx_buffers(sp, rng_n) == -ENOMEM) {
+ DBG_PRINT(ERR_DBG, "%s:Out of memory", dev->name);
+ DBG_PRINT(ERR_DBG, " in Rx Intr!!\n");
+ }
+
atomic_dec(&sp->isr_cnt);
return IRQ_HANDLED;
atomic_dec(&sp->isr_cnt);
return IRQ_HANDLED;
}
-
static void s2io_txpic_intr_handle(nic_t *sp)
{
XENA_dev_config_t __iomem *bar0 = sp->bar0;
val64 = readq(&bar0->gpio_int_reg);
if ((val64 & GPIO_INT_REG_LINK_DOWN) &&
(val64 & GPIO_INT_REG_LINK_UP)) {
+ /*
+ * This is unstable state so clear both up/down
+ * interrupt and adapter to re-evaluate the link state.
+ */
val64 |= GPIO_INT_REG_LINK_DOWN;
val64 |= GPIO_INT_REG_LINK_UP;
writeq(val64, &bar0->gpio_int_reg);
- goto masking;
- }
-
- if (((sp->last_link_state == LINK_UP) &&
- (val64 & GPIO_INT_REG_LINK_DOWN)) ||
- ((sp->last_link_state == LINK_DOWN) &&
- (val64 & GPIO_INT_REG_LINK_UP))) {
- val64 = readq(&bar0->gpio_int_mask);
- val64 |= GPIO_INT_MASK_LINK_DOWN;
- val64 |= GPIO_INT_MASK_LINK_UP;
- writeq(val64, &bar0->gpio_int_mask);
- s2io_set_link((unsigned long)sp);
- }
-masking:
- if (sp->last_link_state == LINK_UP) {
- /*enable down interrupt */
- val64 = readq(&bar0->gpio_int_mask);
- /* unmasks link down intr */
- val64 &= ~GPIO_INT_MASK_LINK_DOWN;
- /* masks link up intr */
- val64 |= GPIO_INT_MASK_LINK_UP;
- writeq(val64, &bar0->gpio_int_mask);
- } else {
- /*enable UP Interrupt */
val64 = readq(&bar0->gpio_int_mask);
- /* unmasks link up interrupt */
- val64 &= ~GPIO_INT_MASK_LINK_UP;
- /* masks link down interrupt */
- val64 |= GPIO_INT_MASK_LINK_DOWN;
+ val64 &= ~(GPIO_INT_MASK_LINK_UP |
+ GPIO_INT_MASK_LINK_DOWN);
writeq(val64, &bar0->gpio_int_mask);
}
- }
-}
-
+ else if (val64 & GPIO_INT_REG_LINK_UP) {
+ val64 = readq(&bar0->adapter_status);
+ if (verify_xena_quiescence(sp, val64,
+ sp->device_enabled_once)) {
+ /* Enable Adapter */
+ val64 = readq(&bar0->adapter_control);
+ val64 |= ADAPTER_CNTL_EN;
+ writeq(val64, &bar0->adapter_control);
+ val64 |= ADAPTER_LED_ON;
+ writeq(val64, &bar0->adapter_control);
+ if (!sp->device_enabled_once)
+ sp->device_enabled_once = 1;
+
+ s2io_link(sp, LINK_UP);
+ /*
+ * unmask link down interrupt and mask link-up
+ * intr
+ */
+ val64 = readq(&bar0->gpio_int_mask);
+ val64 &= ~GPIO_INT_MASK_LINK_DOWN;
+ val64 |= GPIO_INT_MASK_LINK_UP;
+ writeq(val64, &bar0->gpio_int_mask);
+
+ }
+ }else if (val64 & GPIO_INT_REG_LINK_DOWN) {
+ val64 = readq(&bar0->adapter_status);
+ if (verify_xena_quiescence(sp, val64,
+ sp->device_enabled_once)) {
+ s2io_link(sp, LINK_DOWN);
+ /* Link is down so unmaks link up interrupt */
+ val64 = readq(&bar0->gpio_int_mask);
+ val64 &= ~GPIO_INT_MASK_LINK_UP;
+ val64 |= GPIO_INT_MASK_LINK_DOWN;
+ writeq(val64, &bar0->gpio_int_mask);
+ }
+ }
+ }
+ val64 = readq(&bar0->gpio_int_mask);
+}
+
/**
* s2io_isr - ISR handler of the device .
* @irq: the irq of the device.
nic_t *sp = dev->priv;
XENA_dev_config_t __iomem *bar0 = sp->bar0;
int i;
- u64 reason = 0, val64;
+ u64 reason = 0, val64, org_mask;
mac_info_t *mac_control;
struct config_param *config;
return IRQ_NONE;
}
+ val64 = 0xFFFFFFFFFFFFFFFFULL;
+ /* Store current mask before masking all interrupts */
+ org_mask = readq(&bar0->general_int_mask);
+ writeq(val64, &bar0->general_int_mask);
+
#ifdef CONFIG_S2IO_NAPI
if (reason & GEN_INTR_RXTRAFFIC) {
if (netif_rx_schedule_prep(dev)) {
- en_dis_able_nic_intrs(sp, RX_TRAFFIC_INTR,
- DISABLE_INTRS);
+ writeq(val64, &bar0->rx_traffic_mask);
__netif_rx_schedule(dev);
}
}
#else
- /* If Intr is because of Rx Traffic */
- if (reason & GEN_INTR_RXTRAFFIC) {
- /*
- * rx_traffic_int reg is an R1 register, writing all 1's
- * will ensure that the actual interrupt causing bit get's
- * cleared and hence a read can be avoided.
- */
- val64 = 0xFFFFFFFFFFFFFFFFULL;
- writeq(val64, &bar0->rx_traffic_int);
- for (i = 0; i < config->rx_ring_num; i++) {
- rx_intr_handler(&mac_control->rings[i]);
- }
+ /*
+ * Rx handler is called by default, without checking for the
+ * cause of interrupt.
+ * rx_traffic_int reg is an R1 register, writing all 1's
+ * will ensure that the actual interrupt causing bit get's
+ * cleared and hence a read can be avoided.
+ */
+ writeq(val64, &bar0->rx_traffic_int);
+ for (i = 0; i < config->rx_ring_num; i++) {
+ rx_intr_handler(&mac_control->rings[i]);
}
#endif
- /* If Intr is because of Tx Traffic */
- if (reason & GEN_INTR_TXTRAFFIC) {
- /*
- * tx_traffic_int reg is an R1 register, writing all 1's
- * will ensure that the actual interrupt causing bit get's
- * cleared and hence a read can be avoided.
- */
- val64 = 0xFFFFFFFFFFFFFFFFULL;
- writeq(val64, &bar0->tx_traffic_int);
+ /*
+ * tx_traffic_int reg is an R1 register, writing all 1's
+ * will ensure that the actual interrupt causing bit get's
+ * cleared and hence a read can be avoided.
+ */
+ writeq(val64, &bar0->tx_traffic_int);
- for (i = 0; i < config->tx_fifo_num; i++)
- tx_intr_handler(&mac_control->fifos[i]);
- }
+ for (i = 0; i < config->tx_fifo_num; i++)
+ tx_intr_handler(&mac_control->fifos[i]);
if (reason & GEN_INTR_TXPIC)
s2io_txpic_intr_handle(sp);
*/
#ifndef CONFIG_S2IO_NAPI
for (i = 0; i < config->rx_ring_num; i++) {
- int ret;
- int rxb_size = atomic_read(&sp->rx_bufs_left[i]);
- int level = rx_buffer_level(sp, rxb_size, i);
-
- if ((level == PANIC) && (!TASKLET_IN_USE)) {
- DBG_PRINT(INTR_DBG, "%s: Rx BD hit ", dev->name);
- DBG_PRINT(INTR_DBG, "PANIC levels\n");
- if ((ret = fill_rx_buffers(sp, i)) == -ENOMEM) {
- DBG_PRINT(ERR_DBG, "%s:Out of memory",
- dev->name);
- DBG_PRINT(ERR_DBG, " in ISR!!\n");
+ if (!sp->lro) {
+ int ret;
+ int rxb_size = atomic_read(&sp->rx_bufs_left[i]);
+ int level = rx_buffer_level(sp, rxb_size, i);
+
+ if ((level == PANIC) && (!TASKLET_IN_USE)) {
+ DBG_PRINT(INTR_DBG, "%s: Rx BD hit ",
+ dev->name);
+ DBG_PRINT(INTR_DBG, "PANIC levels\n");
+ if ((ret = fill_rx_buffers(sp, i)) == -ENOMEM) {
+ DBG_PRINT(ERR_DBG, "%s:Out of memory",
+ dev->name);
+ DBG_PRINT(ERR_DBG, " in ISR!!\n");
+ clear_bit(0, (&sp->tasklet_status));
+ atomic_dec(&sp->isr_cnt);
+ writeq(org_mask, &bar0->general_int_mask);
+ return IRQ_HANDLED;
+ }
clear_bit(0, (&sp->tasklet_status));
- atomic_dec(&sp->isr_cnt);
- return IRQ_HANDLED;
+ } else if (level == LOW) {
+ tasklet_schedule(&sp->task);
}
- clear_bit(0, (&sp->tasklet_status));
- } else if (level == LOW) {
- tasklet_schedule(&sp->task);
+ }
+ else if (fill_rx_buffers(sp, i) == -ENOMEM) {
+ DBG_PRINT(ERR_DBG, "%s:Out of memory",
+ dev->name);
+ DBG_PRINT(ERR_DBG, " in Rx intr!!\n");
+ break;
}
}
#endif
-
+ writeq(org_mask, &bar0->general_int_mask);
atomic_dec(&sp->isr_cnt);
return IRQ_HANDLED;
}
RMAC_ADDR_CMD_MEM_OFFSET(MAC_MC_ALL_MC_ADDR_OFFSET);
writeq(val64, &bar0->rmac_addr_cmd_mem);
/* Wait till command completes */
- wait_for_cmd_complete(sp);
+ wait_for_cmd_complete(&bar0->rmac_addr_cmd_mem,
+ RMAC_ADDR_CMD_MEM_STROBE_CMD_EXECUTING);
sp->m_cast_flg = 1;
sp->all_multi_pos = MAC_MC_ALL_MC_ADDR_OFFSET;
RMAC_ADDR_CMD_MEM_OFFSET(sp->all_multi_pos);
writeq(val64, &bar0->rmac_addr_cmd_mem);
/* Wait till command completes */
- wait_for_cmd_complete(sp);
+ wait_for_cmd_complete(&bar0->rmac_addr_cmd_mem,
+ RMAC_ADDR_CMD_MEM_STROBE_CMD_EXECUTING);
sp->m_cast_flg = 0;
sp->all_multi_pos = 0;
writeq(val64, &bar0->rmac_addr_cmd_mem);
/* Wait for command completes */
- if (wait_for_cmd_complete(sp)) {
+ if (wait_for_cmd_complete(&bar0->rmac_addr_cmd_mem,
+ RMAC_ADDR_CMD_MEM_STROBE_CMD_EXECUTING)) {
DBG_PRINT(ERR_DBG, "%s: Adding ",
dev->name);
DBG_PRINT(ERR_DBG, "Multicasts failed\n");
i++, mclist = mclist->next) {
memcpy(sp->usr_addrs[i].addr, mclist->dmi_addr,
ETH_ALEN);
+ mac_addr = 0;
for (j = 0; j < ETH_ALEN; j++) {
mac_addr |= mclist->dmi_addr[j];
mac_addr <<= 8;
writeq(val64, &bar0->rmac_addr_cmd_mem);
/* Wait for command completes */
- if (wait_for_cmd_complete(sp)) {
+ if (wait_for_cmd_complete(&bar0->rmac_addr_cmd_mem,
+ RMAC_ADDR_CMD_MEM_STROBE_CMD_EXECUTING)) {
DBG_PRINT(ERR_DBG, "%s: Adding ",
dev->name);
DBG_PRINT(ERR_DBG, "Multicasts failed\n");
* as defined in errno.h file on failure.
*/
-int s2io_set_mac_addr(struct net_device *dev, u8 * addr)
+static int s2io_set_mac_addr(struct net_device *dev, u8 * addr)
{
nic_t *sp = dev->priv;
XENA_dev_config_t __iomem *bar0 = sp->bar0;
RMAC_ADDR_CMD_MEM_OFFSET(0);
writeq(val64, &bar0->rmac_addr_cmd_mem);
/* Wait till command completes */
- if (wait_for_cmd_complete(sp)) {
+ if (wait_for_cmd_complete(&bar0->rmac_addr_cmd_mem,
+ RMAC_ADDR_CMD_MEM_STROBE_CMD_EXECUTING)) {
DBG_PRINT(ERR_DBG, "%s: set_mac_addr failed\n", dev->name);
return FAILURE;
}
}
return ret;
}
+static void s2io_vpd_read(nic_t *nic)
+{
+ u8 vpd_data[256],data;
+ int i=0, cnt, fail = 0;
+ int vpd_addr = 0x80;
+
+ if (nic->device_type == XFRAME_II_DEVICE) {
+ strcpy(nic->product_name, "Xframe II 10GbE network adapter");
+ vpd_addr = 0x80;
+ }
+ else {
+ strcpy(nic->product_name, "Xframe I 10GbE network adapter");
+ vpd_addr = 0x50;
+ }
+
+ for (i = 0; i < 256; i +=4 ) {
+ pci_write_config_byte(nic->pdev, (vpd_addr + 2), i);
+ pci_read_config_byte(nic->pdev, (vpd_addr + 2), &data);
+ pci_write_config_byte(nic->pdev, (vpd_addr + 3), 0);
+ for (cnt = 0; cnt <5; cnt++) {
+ msleep(2);
+ pci_read_config_byte(nic->pdev, (vpd_addr + 3), &data);
+ if (data == 0x80)
+ break;
+ }
+ if (cnt >= 5) {
+ DBG_PRINT(ERR_DBG, "Read of VPD data failed\n");
+ fail = 1;
+ break;
+ }
+ pci_read_config_dword(nic->pdev, (vpd_addr + 4),
+ (u32 *)&vpd_data[i]);
+ }
+ if ((!fail) && (vpd_data[1] < VPD_PRODUCT_NAME_LEN)) {
+ memset(nic->product_name, 0, vpd_data[1]);
+ memcpy(nic->product_name, &vpd_data[3], vpd_data[1]);
+ }
+}
/**
* s2io_ethtool_geeprom - reads the value stored in the Eeprom.
u64 val64;
val64 = readq(&bar0->adapter_status);
- if (val64 & ADAPTER_STATUS_RMAC_LOCAL_FAULT)
+ if(!(LINK_IS_UP(val64)))
*data = 1;
+ else
+ *data = 0;
return 0;
}
(u64)le32_to_cpu(stat_info->tmac_bcst_frms_oflow) << 32 |
le32_to_cpu(stat_info->tmac_bcst_frms);
tmp_stats[i++] = le64_to_cpu(stat_info->tmac_pause_ctrl_frms);
+ tmp_stats[i++] =
+ (u64)le32_to_cpu(stat_info->tmac_ttl_octets_oflow) << 32 |
+ le32_to_cpu(stat_info->tmac_ttl_octets);
+ tmp_stats[i++] =
+ (u64)le32_to_cpu(stat_info->tmac_ucst_frms_oflow) << 32 |
+ le32_to_cpu(stat_info->tmac_ucst_frms);
+ tmp_stats[i++] =
+ (u64)le32_to_cpu(stat_info->tmac_nucst_frms_oflow) << 32 |
+ le32_to_cpu(stat_info->tmac_nucst_frms);
tmp_stats[i++] =
(u64)le32_to_cpu(stat_info->tmac_any_err_frms_oflow) << 32 |
le32_to_cpu(stat_info->tmac_any_err_frms);
+ tmp_stats[i++] = le64_to_cpu(stat_info->tmac_ttl_less_fb_octets);
tmp_stats[i++] = le64_to_cpu(stat_info->tmac_vld_ip_octets);
tmp_stats[i++] =
(u64)le32_to_cpu(stat_info->tmac_vld_ip_oflow) << 32 |
(u64)le32_to_cpu(stat_info->rmac_vld_bcst_frms_oflow) << 32 |
le32_to_cpu(stat_info->rmac_vld_bcst_frms);
tmp_stats[i++] = le32_to_cpu(stat_info->rmac_in_rng_len_err_frms);
+ tmp_stats[i++] = le32_to_cpu(stat_info->rmac_out_rng_len_err_frms);
tmp_stats[i++] = le64_to_cpu(stat_info->rmac_long_frms);
tmp_stats[i++] = le64_to_cpu(stat_info->rmac_pause_ctrl_frms);
+ tmp_stats[i++] = le64_to_cpu(stat_info->rmac_unsup_ctrl_frms);
+ tmp_stats[i++] =
+ (u64)le32_to_cpu(stat_info->rmac_ttl_octets_oflow) << 32 |
+ le32_to_cpu(stat_info->rmac_ttl_octets);
+ tmp_stats[i++] =
+ (u64)le32_to_cpu(stat_info->rmac_accepted_ucst_frms_oflow)
+ << 32 | le32_to_cpu(stat_info->rmac_accepted_ucst_frms);
+ tmp_stats[i++] =
+ (u64)le32_to_cpu(stat_info->rmac_accepted_nucst_frms_oflow)
+ << 32 | le32_to_cpu(stat_info->rmac_accepted_nucst_frms);
tmp_stats[i++] =
(u64)le32_to_cpu(stat_info->rmac_discarded_frms_oflow) << 32 |
le32_to_cpu(stat_info->rmac_discarded_frms);
+ tmp_stats[i++] =
+ (u64)le32_to_cpu(stat_info->rmac_drop_events_oflow)
+ << 32 | le32_to_cpu(stat_info->rmac_drop_events);
+ tmp_stats[i++] = le64_to_cpu(stat_info->rmac_ttl_less_fb_octets);
+ tmp_stats[i++] = le64_to_cpu(stat_info->rmac_ttl_frms);
tmp_stats[i++] =
(u64)le32_to_cpu(stat_info->rmac_usized_frms_oflow) << 32 |
le32_to_cpu(stat_info->rmac_usized_frms);
tmp_stats[i++] =
(u64)le32_to_cpu(stat_info->rmac_jabber_frms_oflow) << 32 |
le32_to_cpu(stat_info->rmac_jabber_frms);
- tmp_stats[i++] = (u64)le32_to_cpu(stat_info->rmac_ip_oflow) << 32 |
+ tmp_stats[i++] = le64_to_cpu(stat_info->rmac_ttl_64_frms);
+ tmp_stats[i++] = le64_to_cpu(stat_info->rmac_ttl_65_127_frms);
+ tmp_stats[i++] = le64_to_cpu(stat_info->rmac_ttl_128_255_frms);
+ tmp_stats[i++] = le64_to_cpu(stat_info->rmac_ttl_256_511_frms);
+ tmp_stats[i++] = le64_to_cpu(stat_info->rmac_ttl_512_1023_frms);
+ tmp_stats[i++] = le64_to_cpu(stat_info->rmac_ttl_1024_1518_frms);
+ tmp_stats[i++] =
+ (u64)le32_to_cpu(stat_info->rmac_ip_oflow) << 32 |
le32_to_cpu(stat_info->rmac_ip);
tmp_stats[i++] = le64_to_cpu(stat_info->rmac_ip_octets);
tmp_stats[i++] = le32_to_cpu(stat_info->rmac_hdr_err_ip);
- tmp_stats[i++] = (u64)le32_to_cpu(stat_info->rmac_drop_ip_oflow) << 32 |
+ tmp_stats[i++] =
+ (u64)le32_to_cpu(stat_info->rmac_drop_ip_oflow) << 32 |
le32_to_cpu(stat_info->rmac_drop_ip);
- tmp_stats[i++] = (u64)le32_to_cpu(stat_info->rmac_icmp_oflow) << 32 |
+ tmp_stats[i++] =
+ (u64)le32_to_cpu(stat_info->rmac_icmp_oflow) << 32 |
le32_to_cpu(stat_info->rmac_icmp);
tmp_stats[i++] = le64_to_cpu(stat_info->rmac_tcp);
- tmp_stats[i++] = (u64)le32_to_cpu(stat_info->rmac_udp_oflow) << 32 |
+ tmp_stats[i++] =
+ (u64)le32_to_cpu(stat_info->rmac_udp_oflow) << 32 |
le32_to_cpu(stat_info->rmac_udp);
tmp_stats[i++] =
(u64)le32_to_cpu(stat_info->rmac_err_drp_udp_oflow) << 32 |
le32_to_cpu(stat_info->rmac_err_drp_udp);
+ tmp_stats[i++] = le64_to_cpu(stat_info->rmac_xgmii_err_sym);
+ tmp_stats[i++] = le64_to_cpu(stat_info->rmac_frms_q0);
+ tmp_stats[i++] = le64_to_cpu(stat_info->rmac_frms_q1);
+ tmp_stats[i++] = le64_to_cpu(stat_info->rmac_frms_q2);
+ tmp_stats[i++] = le64_to_cpu(stat_info->rmac_frms_q3);
+ tmp_stats[i++] = le64_to_cpu(stat_info->rmac_frms_q4);
+ tmp_stats[i++] = le64_to_cpu(stat_info->rmac_frms_q5);
+ tmp_stats[i++] = le64_to_cpu(stat_info->rmac_frms_q6);
+ tmp_stats[i++] = le64_to_cpu(stat_info->rmac_frms_q7);
+ tmp_stats[i++] = le16_to_cpu(stat_info->rmac_full_q0);
+ tmp_stats[i++] = le16_to_cpu(stat_info->rmac_full_q1);
+ tmp_stats[i++] = le16_to_cpu(stat_info->rmac_full_q2);
+ tmp_stats[i++] = le16_to_cpu(stat_info->rmac_full_q3);
+ tmp_stats[i++] = le16_to_cpu(stat_info->rmac_full_q4);
+ tmp_stats[i++] = le16_to_cpu(stat_info->rmac_full_q5);
+ tmp_stats[i++] = le16_to_cpu(stat_info->rmac_full_q6);
+ tmp_stats[i++] = le16_to_cpu(stat_info->rmac_full_q7);
tmp_stats[i++] =
(u64)le32_to_cpu(stat_info->rmac_pause_cnt_oflow) << 32 |
le32_to_cpu(stat_info->rmac_pause_cnt);
+ tmp_stats[i++] = le64_to_cpu(stat_info->rmac_xgmii_data_err_cnt);
+ tmp_stats[i++] = le64_to_cpu(stat_info->rmac_xgmii_ctrl_err_cnt);
tmp_stats[i++] =
(u64)le32_to_cpu(stat_info->rmac_accepted_ip_oflow) << 32 |
le32_to_cpu(stat_info->rmac_accepted_ip);
tmp_stats[i++] = le32_to_cpu(stat_info->rmac_err_tcp);
+ tmp_stats[i++] = le32_to_cpu(stat_info->rd_req_cnt);
+ tmp_stats[i++] = le32_to_cpu(stat_info->new_rd_req_cnt);
+ tmp_stats[i++] = le32_to_cpu(stat_info->new_rd_req_rtry_cnt);
+ tmp_stats[i++] = le32_to_cpu(stat_info->rd_rtry_cnt);
+ tmp_stats[i++] = le32_to_cpu(stat_info->wr_rtry_rd_ack_cnt);
+ tmp_stats[i++] = le32_to_cpu(stat_info->wr_req_cnt);
+ tmp_stats[i++] = le32_to_cpu(stat_info->new_wr_req_cnt);
+ tmp_stats[i++] = le32_to_cpu(stat_info->new_wr_req_rtry_cnt);
+ tmp_stats[i++] = le32_to_cpu(stat_info->wr_rtry_cnt);
+ tmp_stats[i++] = le32_to_cpu(stat_info->wr_disc_cnt);
+ tmp_stats[i++] = le32_to_cpu(stat_info->rd_rtry_wr_ack_cnt);
+ tmp_stats[i++] = le32_to_cpu(stat_info->txp_wr_cnt);
+ tmp_stats[i++] = le32_to_cpu(stat_info->txd_rd_cnt);
+ tmp_stats[i++] = le32_to_cpu(stat_info->txd_wr_cnt);
+ tmp_stats[i++] = le32_to_cpu(stat_info->rxd_rd_cnt);
+ tmp_stats[i++] = le32_to_cpu(stat_info->rxd_wr_cnt);
+ tmp_stats[i++] = le32_to_cpu(stat_info->txf_rd_cnt);
+ tmp_stats[i++] = le32_to_cpu(stat_info->rxf_wr_cnt);
+ tmp_stats[i++] = le64_to_cpu(stat_info->rmac_ttl_1519_4095_frms);
+ tmp_stats[i++] = le64_to_cpu(stat_info->rmac_ttl_4096_8191_frms);
+ tmp_stats[i++] = le64_to_cpu(stat_info->rmac_ttl_8192_max_frms);
+ tmp_stats[i++] = le64_to_cpu(stat_info->rmac_ttl_gt_max_frms);
+ tmp_stats[i++] = le64_to_cpu(stat_info->rmac_osized_alt_frms);
+ tmp_stats[i++] = le64_to_cpu(stat_info->rmac_jabber_alt_frms);
+ tmp_stats[i++] = le64_to_cpu(stat_info->rmac_gt_max_alt_frms);
+ tmp_stats[i++] = le64_to_cpu(stat_info->rmac_vlan_frms);
+ tmp_stats[i++] = le32_to_cpu(stat_info->rmac_len_discard);
+ tmp_stats[i++] = le32_to_cpu(stat_info->rmac_fcs_discard);
+ tmp_stats[i++] = le32_to_cpu(stat_info->rmac_pf_discard);
+ tmp_stats[i++] = le32_to_cpu(stat_info->rmac_da_discard);
+ tmp_stats[i++] = le32_to_cpu(stat_info->rmac_red_discard);
+ tmp_stats[i++] = le32_to_cpu(stat_info->rmac_rts_discard);
+ tmp_stats[i++] = le32_to_cpu(stat_info->rmac_ingm_full_discard);
+ tmp_stats[i++] = le32_to_cpu(stat_info->link_fault_cnt);
tmp_stats[i++] = 0;
tmp_stats[i++] = stat_info->sw_stat.single_ecc_errs;
tmp_stats[i++] = stat_info->sw_stat.double_ecc_errs;
+ tmp_stats[i++] = stat_info->sw_stat.parity_err_cnt;
+ tmp_stats[i++] = stat_info->sw_stat.serious_err_cnt;
+ tmp_stats[i++] = stat_info->sw_stat.soft_reset_cnt;
+ tmp_stats[i++] = stat_info->sw_stat.fifo_full_cnt;
+ tmp_stats[i++] = stat_info->sw_stat.ring_full_cnt;
+ tmp_stats[i++] = stat_info->xpak_stat.alarm_transceiver_temp_high;
+ tmp_stats[i++] = stat_info->xpak_stat.alarm_transceiver_temp_low;
+ tmp_stats[i++] = stat_info->xpak_stat.alarm_laser_bias_current_high;
+ tmp_stats[i++] = stat_info->xpak_stat.alarm_laser_bias_current_low;
+ tmp_stats[i++] = stat_info->xpak_stat.alarm_laser_output_power_high;
+ tmp_stats[i++] = stat_info->xpak_stat.alarm_laser_output_power_low;
+ tmp_stats[i++] = stat_info->xpak_stat.warn_transceiver_temp_high;
+ tmp_stats[i++] = stat_info->xpak_stat.warn_transceiver_temp_low;
+ tmp_stats[i++] = stat_info->xpak_stat.warn_laser_bias_current_high;
+ tmp_stats[i++] = stat_info->xpak_stat.warn_laser_bias_current_low;
+ tmp_stats[i++] = stat_info->xpak_stat.warn_laser_output_power_high;
+ tmp_stats[i++] = stat_info->xpak_stat.warn_laser_output_power_low;
+ tmp_stats[i++] = stat_info->sw_stat.clubbed_frms_cnt;
+ tmp_stats[i++] = stat_info->sw_stat.sending_both;
+ tmp_stats[i++] = stat_info->sw_stat.outof_sequence_pkts;
+ tmp_stats[i++] = stat_info->sw_stat.flush_max_pkts;
+ if (stat_info->sw_stat.num_aggregations) {
+ u64 tmp = stat_info->sw_stat.sum_avg_pkts_aggregated;
+ int count = 0;
+ /*
+ * Since 64-bit divide does not work on all platforms,
+ * do repeated subtraction.
+ */
+ while (tmp >= stat_info->sw_stat.num_aggregations) {
+ tmp -= stat_info->sw_stat.num_aggregations;
+ count++;
+ }
+ tmp_stats[i++] = count;
+ }
+ else
+ tmp_stats[i++] = 0;
}
static int s2io_ethtool_get_regs_len(struct net_device *dev)
dev->mtu = new_mtu;
if (netif_running(dev)) {
- s2io_card_down(sp);
+ s2io_card_down(sp, 0);
netif_stop_queue(dev);
if (s2io_card_up(sp)) {
DBG_PRINT(ERR_DBG, "%s: Device bring up failed\n",
clear_bit(0, &(nic->link_state));
}
-static void s2io_card_down(nic_t * sp)
+static int set_rxd_buffer_pointer(nic_t *sp, RxD_t *rxdp, buffAdd_t *ba,
+ struct sk_buff **skb, u64 *temp0, u64 *temp1,
+ u64 *temp2, int size)
+{
+ struct net_device *dev = sp->dev;
+ struct sk_buff *frag_list;
+
+ if ((sp->rxd_mode == RXD_MODE_1) && (rxdp->Host_Control == 0)) {
+ /* allocate skb */
+ if (*skb) {
+ DBG_PRINT(INFO_DBG, "SKB is not NULL\n");
+ /*
+ * As Rx frame are not going to be processed,
+ * using same mapped address for the Rxd
+ * buffer pointer
+ */
+ ((RxD1_t*)rxdp)->Buffer0_ptr = *temp0;
+ } else {
+ *skb = dev_alloc_skb(size);
+ if (!(*skb)) {
+ DBG_PRINT(ERR_DBG, "%s: Out of ", dev->name);
+ DBG_PRINT(ERR_DBG, "memory to allocate SKBs\n");
+ return -ENOMEM ;
+ }
+ /* storing the mapped addr in a temp variable
+ * such it will be used for next rxd whose
+ * Host Control is NULL
+ */
+ ((RxD1_t*)rxdp)->Buffer0_ptr = *temp0 =
+ pci_map_single( sp->pdev, (*skb)->data,
+ size - NET_IP_ALIGN,
+ PCI_DMA_FROMDEVICE);
+ rxdp->Host_Control = (unsigned long) (*skb);
+ }
+ } else if ((sp->rxd_mode == RXD_MODE_3B) && (rxdp->Host_Control == 0)) {
+ /* Two buffer Mode */
+ if (*skb) {
+ ((RxD3_t*)rxdp)->Buffer2_ptr = *temp2;
+ ((RxD3_t*)rxdp)->Buffer0_ptr = *temp0;
+ ((RxD3_t*)rxdp)->Buffer1_ptr = *temp1;
+ } else {
+ *skb = dev_alloc_skb(size);
+ ((RxD3_t*)rxdp)->Buffer2_ptr = *temp2 =
+ pci_map_single(sp->pdev, (*skb)->data,
+ dev->mtu + 4,
+ PCI_DMA_FROMDEVICE);
+ ((RxD3_t*)rxdp)->Buffer0_ptr = *temp0 =
+ pci_map_single( sp->pdev, ba->ba_0, BUF0_LEN,
+ PCI_DMA_FROMDEVICE);
+ rxdp->Host_Control = (unsigned long) (*skb);
+
+ /* Buffer-1 will be dummy buffer not used */
+ ((RxD3_t*)rxdp)->Buffer1_ptr = *temp1 =
+ pci_map_single(sp->pdev, ba->ba_1, BUF1_LEN,
+ PCI_DMA_FROMDEVICE);
+ }
+ } else if ((rxdp->Host_Control == 0)) {
+ /* Three buffer mode */
+ if (*skb) {
+ ((RxD3_t*)rxdp)->Buffer0_ptr = *temp0;
+ ((RxD3_t*)rxdp)->Buffer1_ptr = *temp1;
+ ((RxD3_t*)rxdp)->Buffer2_ptr = *temp2;
+ } else {
+ *skb = dev_alloc_skb(size);
+
+ ((RxD3_t*)rxdp)->Buffer0_ptr = *temp0 =
+ pci_map_single(sp->pdev, ba->ba_0, BUF0_LEN,
+ PCI_DMA_FROMDEVICE);
+ /* Buffer-1 receives L3/L4 headers */
+ ((RxD3_t*)rxdp)->Buffer1_ptr = *temp1 =
+ pci_map_single( sp->pdev, (*skb)->data,
+ l3l4hdr_size + 4,
+ PCI_DMA_FROMDEVICE);
+ /*
+ * skb_shinfo(skb)->frag_list will have L4
+ * data payload
+ */
+ skb_shinfo(*skb)->frag_list = dev_alloc_skb(dev->mtu +
+ ALIGN_SIZE);
+ if (skb_shinfo(*skb)->frag_list == NULL) {
+ DBG_PRINT(ERR_DBG, "%s: dev_alloc_skb \
+ failed\n ", dev->name);
+ return -ENOMEM ;
+ }
+ frag_list = skb_shinfo(*skb)->frag_list;
+ frag_list->next = NULL;
+ /*
+ * Buffer-2 receives L4 data payload
+ */
+ ((RxD3_t*)rxdp)->Buffer2_ptr = *temp2 =
+ pci_map_single( sp->pdev, frag_list->data,
+ dev->mtu, PCI_DMA_FROMDEVICE);
+ }
+ }
+ return 0;
+}
+static void set_rxd_buffer_size(nic_t *sp, RxD_t *rxdp, int size)
+{
+ struct net_device *dev = sp->dev;
+ if (sp->rxd_mode == RXD_MODE_1) {
+ rxdp->Control_2 = SET_BUFFER0_SIZE_1( size - NET_IP_ALIGN);
+ } else if (sp->rxd_mode == RXD_MODE_3B) {
+ rxdp->Control_2 = SET_BUFFER0_SIZE_3(BUF0_LEN);
+ rxdp->Control_2 |= SET_BUFFER1_SIZE_3(1);
+ rxdp->Control_2 |= SET_BUFFER2_SIZE_3( dev->mtu + 4);
+ } else {
+ rxdp->Control_2 = SET_BUFFER0_SIZE_3(BUF0_LEN);
+ rxdp->Control_2 |= SET_BUFFER1_SIZE_3(l3l4hdr_size + 4);
+ rxdp->Control_2 |= SET_BUFFER2_SIZE_3(dev->mtu);
+ }
+}
+
+static int rxd_owner_bit_reset(nic_t *sp)
+{
+ int i, j, k, blk_cnt = 0, size;
+ mac_info_t * mac_control = &sp->mac_control;
+ struct config_param *config = &sp->config;
+ struct net_device *dev = sp->dev;
+ RxD_t *rxdp = NULL;
+ struct sk_buff *skb = NULL;
+ buffAdd_t *ba = NULL;
+ u64 temp0_64 = 0, temp1_64 = 0, temp2_64 = 0;
+
+ /* Calculate the size based on ring mode */
+ size = dev->mtu + HEADER_ETHERNET_II_802_3_SIZE +
+ HEADER_802_2_SIZE + HEADER_SNAP_SIZE;
+ if (sp->rxd_mode == RXD_MODE_1)
+ size += NET_IP_ALIGN;
+ else if (sp->rxd_mode == RXD_MODE_3B)
+ size = dev->mtu + ALIGN_SIZE + BUF0_LEN + 4;
+ else
+ size = l3l4hdr_size + ALIGN_SIZE + BUF0_LEN + 4;
+
+ for (i = 0; i < config->rx_ring_num; i++) {
+ blk_cnt = config->rx_cfg[i].num_rxd /
+ (rxd_count[sp->rxd_mode] +1);
+
+ for (j = 0; j < blk_cnt; j++) {
+ for (k = 0; k < rxd_count[sp->rxd_mode]; k++) {
+ rxdp = mac_control->rings[i].
+ rx_blocks[j].rxds[k].virt_addr;
+ if(sp->rxd_mode >= RXD_MODE_3A)
+ ba = &mac_control->rings[i].ba[j][k];
+ set_rxd_buffer_pointer(sp, rxdp, ba,
+ &skb,(u64 *)&temp0_64,
+ (u64 *)&temp1_64,
+ (u64 *)&temp2_64, size);
+
+ set_rxd_buffer_size(sp, rxdp, size);
+ wmb();
+ /* flip the Ownership bit to Hardware */
+ rxdp->Control_1 |= RXD_OWN_XENA;
+ }
+ }
+ }
+ return 0;
+
+}
+
+static void s2io_card_down(nic_t * sp, int flag)
{
int cnt = 0;
XENA_dev_config_t __iomem *bar0 = sp->bar0;
unsigned long flags;
register u64 val64 = 0;
+ struct net_device *dev = sp->dev;
del_timer_sync(&sp->alarm_timer);
/* If s2io_set_link task is executing, wait till it completes. */
/* disable Tx and Rx traffic on the NIC */
stop_nic(sp);
+ if (flag) {
+ if (sp->intr_type == MSI_X) {
+ int i;
+ u16 msi_control;
+
+ for (i=1; (sp->s2io_entries[i].in_use ==
+ MSIX_REGISTERED_SUCCESS); i++) {
+ int vector = sp->entries[i].vector;
+ void *arg = sp->s2io_entries[i].arg;
+
+ free_irq(vector, arg);
+ }
+ pci_read_config_word(sp->pdev, 0x42, &msi_control);
+ msi_control &= 0xFFFE; /* Disable MSI */
+ pci_write_config_word(sp->pdev, 0x42, msi_control);
+ pci_disable_msix(sp->pdev);
+ } else {
+ free_irq(sp->pdev->irq, dev);
+ if (sp->intr_type == MSI)
+ pci_disable_msi(sp->pdev);
+ }
+ }
+ /* Waiting till all Interrupt handlers are complete */
+ cnt = 0;
+ do {
+ msleep(10);
+ if (!atomic_read(&sp->isr_cnt))
+ break;
+ cnt++;
+ } while(cnt < 5);
/* Kill tasklet. */
tasklet_kill(&sp->task);
/* Check if the device is Quiescent and then Reset the NIC */
do {
+ /* As per the HW requirement we need to replenish the
+ * receive buffer to avoid the ring bump. Since there is
+ * no intention of processing the Rx frame at this pointwe are
+ * just settting the ownership bit of rxd in Each Rx
+ * ring to HW and set the appropriate buffer size
+ * based on the ring mode
+ */
+ rxd_owner_bit_reset(sp);
+
val64 = readq(&bar0->adapter_status);
if (verify_xena_quiescence(sp, val64, sp->device_enabled_once)) {
break;
} while (1);
s2io_reset(sp);
- /* Waiting till all Interrupt handlers are complete */
- cnt = 0;
- do {
- msleep(10);
- if (!atomic_read(&sp->isr_cnt))
- break;
- cnt++;
- } while(cnt < 5);
-
spin_lock_irqsave(&sp->tx_lock, flags);
/* Free all Tx buffers */
free_tx_buffers(sp);
/* Setting its receive mode */
s2io_set_multicast(dev);
+ if (sp->lro) {
+ /* Initialize max aggregatable pkts based on MTU */
+ sp->lro_max_aggr_per_sess = ((1<<16) - 1) / dev->mtu;
+ /* Check if we can use(if specified) user provided value */
+ if (lro_max_pkts < sp->lro_max_aggr_per_sess)
+ sp->lro_max_aggr_per_sess = lro_max_pkts;
+ }
+
/* Enable tasklet for the device */
tasklet_init(&sp->task, s2io_tasklet, (unsigned long) dev);
struct net_device *dev = (struct net_device *) data;
nic_t *sp = dev->priv;
- s2io_card_down(sp);
+ s2io_card_down(sp, 0);
if (s2io_card_up(sp)) {
DBG_PRINT(ERR_DBG, "%s: Device bring up failed\n",
dev->name);
if (netif_carrier_ok(dev)) {
schedule_work(&sp->rst_timer_task);
+ sp->mac_control.stats_info->sw_stat.soft_reset_cnt++;
}
}
((unsigned long) rxdp->Host_Control);
int ring_no = ring_data->ring_no;
u16 l3_csum, l4_csum;
+ unsigned long long err = rxdp->Control_1 & RXD_T_CODE;
+ lro_t *lro;
skb->dev = dev;
- if (rxdp->Control_1 & RXD_T_CODE) {
- unsigned long long err = rxdp->Control_1 & RXD_T_CODE;
- DBG_PRINT(ERR_DBG, "%s: Rx error Value: 0x%llx\n",
- dev->name, err);
- dev_kfree_skb(skb);
- sp->stats.rx_crc_errors++;
- atomic_dec(&sp->rx_bufs_left[ring_no]);
- rxdp->Host_Control = 0;
- return 0;
+
+ if (err) {
+ /* Check for parity error */
+ if (err & 0x1) {
+ sp->mac_control.stats_info->sw_stat.parity_err_cnt++;
+ }
+
+ /*
+ * Drop the packet if bad transfer code. Exception being
+ * 0x5, which could be due to unsupported IPv6 extension header.
+ * In this case, we let stack handle the packet.
+ * Note that in this case, since checksum will be incorrect,
+ * stack will validate the same.
+ */
+ if (err && ((err >> 48) != 0x5)) {
+ DBG_PRINT(ERR_DBG, "%s: Rx error Value: 0x%llx\n",
+ dev->name, err);
+ sp->stats.rx_crc_errors++;
+ dev_kfree_skb(skb);
+ atomic_dec(&sp->rx_bufs_left[ring_no]);
+ rxdp->Host_Control = 0;
+ return 0;
+ }
}
/* Updating statistics */
skb_put(skb, buf2_len);
}
- if ((rxdp->Control_1 & TCP_OR_UDP_FRAME) &&
+ if ((rxdp->Control_1 & TCP_OR_UDP_FRAME) && ((!sp->lro) ||
+ (sp->lro && (!(rxdp->Control_1 & RXD_FRAME_IP_FRAG)))) &&
(sp->rx_csum)) {
l3_csum = RXD_GET_L3_CKSUM(rxdp->Control_1);
l4_csum = RXD_GET_L4_CKSUM(rxdp->Control_1);
* a flag in the RxD.
*/
skb->ip_summed = CHECKSUM_UNNECESSARY;
+ if (sp->lro) {
+ u32 tcp_len;
+ u8 *tcp;
+ int ret = 0;
+
+ ret = s2io_club_tcp_session(skb->data, &tcp,
+ &tcp_len, &lro, rxdp, sp);
+ switch (ret) {
+ case 3: /* Begin anew */
+ lro->parent = skb;
+ goto aggregate;
+ case 1: /* Aggregate */
+ {
+ lro_append_pkt(sp, lro,
+ skb, tcp_len);
+ goto aggregate;
+ }
+ case 4: /* Flush session */
+ {
+ lro_append_pkt(sp, lro,
+ skb, tcp_len);
+ queue_rx_frame(lro->parent);
+ clear_lro_session(lro);
+ sp->mac_control.stats_info->
+ sw_stat.flush_max_pkts++;
+ goto aggregate;
+ }
+ case 2: /* Flush both */
+ lro->parent->data_len =
+ lro->frags_len;
+ sp->mac_control.stats_info->
+ sw_stat.sending_both++;
+ queue_rx_frame(lro->parent);
+ clear_lro_session(lro);
+ goto send_up;
+ case 0: /* sessions exceeded */
+ case -1: /* non-TCP or not
+ * L2 aggregatable
+ */
+ case 5: /*
+ * First pkt in session not
+ * L3/L4 aggregatable
+ */
+ break;
+ default:
+ DBG_PRINT(ERR_DBG,
+ "%s: Samadhana!!\n",
+ __FUNCTION__);
+ BUG();
+ }
+ }
} else {
/*
* Packet with erroneous checksum, let the
skb->ip_summed = CHECKSUM_NONE;
}
- skb->protocol = eth_type_trans(skb, dev);
+ if (!sp->lro) {
+ skb->protocol = eth_type_trans(skb, dev);
#ifdef CONFIG_S2IO_NAPI
- if (sp->vlgrp && RXD_GET_VLAN_TAG(rxdp->Control_2)) {
- /* Queueing the vlan frame to the upper layer */
- vlan_hwaccel_receive_skb(skb, sp->vlgrp,
- RXD_GET_VLAN_TAG(rxdp->Control_2));
- } else {
- netif_receive_skb(skb);
- }
+ if (sp->vlgrp && RXD_GET_VLAN_TAG(rxdp->Control_2)) {
+ /* Queueing the vlan frame to the upper layer */
+ vlan_hwaccel_receive_skb(skb, sp->vlgrp,
+ RXD_GET_VLAN_TAG(rxdp->Control_2));
+ } else {
+ netif_receive_skb(skb);
+ }
#else
- if (sp->vlgrp && RXD_GET_VLAN_TAG(rxdp->Control_2)) {
- /* Queueing the vlan frame to the upper layer */
- vlan_hwaccel_rx(skb, sp->vlgrp,
- RXD_GET_VLAN_TAG(rxdp->Control_2));
- } else {
- netif_rx(skb);
- }
+ if (sp->vlgrp && RXD_GET_VLAN_TAG(rxdp->Control_2)) {
+ /* Queueing the vlan frame to the upper layer */
+ vlan_hwaccel_rx(skb, sp->vlgrp,
+ RXD_GET_VLAN_TAG(rxdp->Control_2));
+ } else {
+ netif_rx(skb);
+ }
#endif
+ } else {
+send_up:
+ queue_rx_frame(skb);
+ }
dev->last_rx = jiffies;
+aggregate:
atomic_dec(&sp->rx_bufs_left[ring_no]);
return SUCCESS;
}
* void.
*/
-void s2io_link(nic_t * sp, int link)
+static void s2io_link(nic_t * sp, int link)
{
struct net_device *dev = (struct net_device *) sp->dev;
* returns the revision ID of the device.
*/
-int get_xena_rev_id(struct pci_dev *pdev)
+static int get_xena_rev_id(struct pci_dev *pdev)
{
u8 id = 0;
int ret;
pci_write_config_word(sp->pdev, PCI_COMMAND,
(pci_cmd | PCI_COMMAND_PARITY));
pci_read_config_word(sp->pdev, PCI_COMMAND, &pci_cmd);
-
- /* Forcibly disabling relaxed ordering capability of the card. */
- pcix_cmd &= 0xfffd;
- pci_write_config_word(sp->pdev, PCIX_COMMAND_REGISTER,
- pcix_cmd);
- pci_read_config_word(sp->pdev, PCIX_COMMAND_REGISTER,
- &(pcix_cmd));
}
MODULE_AUTHOR("Raghavendra Koushik <raghavendra.koushik@neterion.com>");
#endif
module_param(rxsync_frequency, int, 0);
module_param(intr_type, int, 0);
+module_param(lro, int, 0);
+module_param(lro_max_pkts, int, 0);
+
+static int s2io_verify_parm(struct pci_dev *pdev, u8 *dev_intr_type)
+{
+ if ( tx_fifo_num > 8) {
+ DBG_PRINT(ERR_DBG, "s2io: Requested number of Tx fifos not "
+ "supported\n");
+ DBG_PRINT(ERR_DBG, "s2io: Default to 8 Tx fifos\n");
+ tx_fifo_num = 8;
+ }
+ if ( rx_ring_num > 8) {
+ DBG_PRINT(ERR_DBG, "s2io: Requested number of Rx rings not "
+ "supported\n");
+ DBG_PRINT(ERR_DBG, "s2io: Default to 8 Rx rings\n");
+ rx_ring_num = 8;
+ }
+#ifdef CONFIG_S2IO_NAPI
+ if (*dev_intr_type != INTA) {
+ DBG_PRINT(ERR_DBG, "s2io: NAPI cannot be enabled when "
+ "MSI/MSI-X is enabled. Defaulting to INTA\n");
+ *dev_intr_type = INTA;
+ }
+#endif
+#ifndef CONFIG_PCI_MSI
+ if (*dev_intr_type != INTA) {
+ DBG_PRINT(ERR_DBG, "s2io: This kernel does not support"
+ "MSI/MSI-X. Defaulting to INTA\n");
+ *dev_intr_type = INTA;
+ }
+#else
+ if (*dev_intr_type > MSI_X) {
+ DBG_PRINT(ERR_DBG, "s2io: Wrong intr_type requested. "
+ "Defaulting to INTA\n");
+ *dev_intr_type = INTA;
+ }
+#endif
+ if ((*dev_intr_type == MSI_X) &&
+ ((pdev->device != PCI_DEVICE_ID_HERC_WIN) &&
+ (pdev->device != PCI_DEVICE_ID_HERC_UNI))) {
+ DBG_PRINT(ERR_DBG, "s2io: Xframe I does not support MSI_X. "
+ "Defaulting to INTA\n");
+ *dev_intr_type = INTA;
+ }
+ if (rx_ring_mode > 3) {
+ DBG_PRINT(ERR_DBG, "s2io: Requested ring mode not supported\n");
+ DBG_PRINT(ERR_DBG, "s2io: Defaulting to 3-buffer mode\n");
+ rx_ring_mode = 3;
+ }
+ return SUCCESS;
+}
/**
* s2io_init_nic - Initialization of the adapter .
int mode;
u8 dev_intr_type = intr_type;
-#ifdef CONFIG_S2IO_NAPI
- if (dev_intr_type != INTA) {
- DBG_PRINT(ERR_DBG, "NAPI cannot be enabled when MSI/MSI-X \
-is enabled. Defaulting to INTA\n");
- dev_intr_type = INTA;
- }
- else
- DBG_PRINT(ERR_DBG, "NAPI support has been enabled\n");
-#endif
+ if ((ret = s2io_verify_parm(pdev, &dev_intr_type)))
+ return ret;
if ((ret = pci_enable_device(pdev))) {
DBG_PRINT(ERR_DBG,
pci_disable_device(pdev);
return -ENOMEM;
}
-
- if ((dev_intr_type == MSI_X) &&
- ((pdev->device != PCI_DEVICE_ID_HERC_WIN) &&
- (pdev->device != PCI_DEVICE_ID_HERC_UNI))) {
- DBG_PRINT(ERR_DBG, "Xframe I does not support MSI_X. \
-Defaulting to INTA\n");
- dev_intr_type = INTA;
- }
if (dev_intr_type != MSI_X) {
if (pci_request_regions(pdev, s2io_driver_name)) {
DBG_PRINT(ERR_DBG, "Request Regions failed\n"),
else
sp->device_type = XFRAME_I_DEVICE;
+ sp->lro = lro;
/* Initialize some PCI/PCI-X fields of the NIC. */
s2io_init_pci(sp);
config = &sp->config;
/* Tx side parameters. */
- if (tx_fifo_len[0] == 0)
- tx_fifo_len[0] = DEFAULT_FIFO_LEN; /* Default value. */
config->tx_fifo_num = tx_fifo_num;
for (i = 0; i < MAX_TX_FIFOS; i++) {
config->tx_cfg[i].fifo_len = tx_fifo_len[i];
config->max_txds = MAX_SKB_FRAGS + 2;
/* Rx side parameters. */
- if (rx_ring_sz[0] == 0)
- rx_ring_sz[0] = SMALL_BLK_CNT; /* Default value. */
config->rx_ring_num = rx_ring_num;
for (i = 0; i < MAX_RX_RINGS; i++) {
config->rx_cfg[i].num_rxd = rx_ring_sz[i] *
val64 = RMAC_ADDR_CMD_MEM_RD | RMAC_ADDR_CMD_MEM_STROBE_NEW_CMD |
RMAC_ADDR_CMD_MEM_OFFSET(0 + MAC_MAC_ADDR_START_OFFSET);
writeq(val64, &bar0->rmac_addr_cmd_mem);
- wait_for_cmd_complete(sp);
-
+ wait_for_cmd_complete(&bar0->rmac_addr_cmd_mem,
+ RMAC_ADDR_CMD_MEM_STROBE_CMD_EXECUTING);
tmp64 = readq(&bar0->rmac_addr_data0_mem);
mac_down = (u32) tmp64;
mac_up = (u32) (tmp64 >> 32);
ret = -ENODEV;
goto register_failed;
}
-
- if (sp->device_type & XFRAME_II_DEVICE) {
- DBG_PRINT(ERR_DBG, "%s: Neterion Xframe II 10GbE adapter ",
- dev->name);
- DBG_PRINT(ERR_DBG, "(rev %d), Version %s",
+ s2io_vpd_read(sp);
+ DBG_PRINT(ERR_DBG, "%s: Neterion %s",dev->name, sp->product_name);
+ DBG_PRINT(ERR_DBG, "(rev %d), Driver version %s\n",
get_xena_rev_id(sp->pdev),
s2io_driver_version);
- switch(sp->intr_type) {
- case INTA:
- DBG_PRINT(ERR_DBG, ", Intr type INTA");
- break;
- case MSI:
- DBG_PRINT(ERR_DBG, ", Intr type MSI");
- break;
- case MSI_X:
- DBG_PRINT(ERR_DBG, ", Intr type MSI-X");
- break;
- }
-
- DBG_PRINT(ERR_DBG, "\nCopyright(c) 2002-2005 Neterion Inc.\n");
- DBG_PRINT(ERR_DBG, "MAC ADDR: %02x:%02x:%02x:%02x:%02x:%02x\n",
+ DBG_PRINT(ERR_DBG, "Copyright(c) 2002-2005 Neterion Inc.\n");
+ DBG_PRINT(ERR_DBG, "%s: MAC ADDR: "
+ "%02x:%02x:%02x:%02x:%02x:%02x\n", dev->name,
sp->def_mac_addr[0].mac_addr[0],
sp->def_mac_addr[0].mac_addr[1],
sp->def_mac_addr[0].mac_addr[2],
sp->def_mac_addr[0].mac_addr[3],
sp->def_mac_addr[0].mac_addr[4],
sp->def_mac_addr[0].mac_addr[5]);
+ if (sp->device_type & XFRAME_II_DEVICE) {
mode = s2io_print_pci_mode(sp);
if (mode < 0) {
- DBG_PRINT(ERR_DBG, " Unsupported PCI bus mode ");
+ DBG_PRINT(ERR_DBG, " Unsupported PCI bus mode\n");
ret = -EBADSLT;
+ unregister_netdev(dev);
goto set_swap_failed;
}
- } else {
- DBG_PRINT(ERR_DBG, "%s: Neterion Xframe I 10GbE adapter ",
- dev->name);
- DBG_PRINT(ERR_DBG, "(rev %d), Version %s",
- get_xena_rev_id(sp->pdev),
- s2io_driver_version);
- switch(sp->intr_type) {
- case INTA:
- DBG_PRINT(ERR_DBG, ", Intr type INTA");
- break;
- case MSI:
- DBG_PRINT(ERR_DBG, ", Intr type MSI");
- break;
- case MSI_X:
- DBG_PRINT(ERR_DBG, ", Intr type MSI-X");
- break;
- }
- DBG_PRINT(ERR_DBG, "\nCopyright(c) 2002-2005 Neterion Inc.\n");
- DBG_PRINT(ERR_DBG, "MAC ADDR: %02x:%02x:%02x:%02x:%02x:%02x\n",
- sp->def_mac_addr[0].mac_addr[0],
- sp->def_mac_addr[0].mac_addr[1],
- sp->def_mac_addr[0].mac_addr[2],
- sp->def_mac_addr[0].mac_addr[3],
- sp->def_mac_addr[0].mac_addr[4],
- sp->def_mac_addr[0].mac_addr[5]);
}
- if (sp->rxd_mode == RXD_MODE_3B)
- DBG_PRINT(ERR_DBG, "%s: 2-Buffer mode support has been "
- "enabled\n",dev->name);
- if (sp->rxd_mode == RXD_MODE_3A)
- DBG_PRINT(ERR_DBG, "%s: 3-Buffer mode support has been "
- "enabled\n",dev->name);
+ switch(sp->rxd_mode) {
+ case RXD_MODE_1:
+ DBG_PRINT(ERR_DBG, "%s: 1-Buffer receive mode enabled\n",
+ dev->name);
+ break;
+ case RXD_MODE_3B:
+ DBG_PRINT(ERR_DBG, "%s: 2-Buffer receive mode enabled\n",
+ dev->name);
+ break;
+ case RXD_MODE_3A:
+ DBG_PRINT(ERR_DBG, "%s: 3-Buffer receive mode enabled\n",
+ dev->name);
+ break;
+ }
+#ifdef CONFIG_S2IO_NAPI
+ DBG_PRINT(ERR_DBG, "%s: NAPI enabled\n", dev->name);
+#endif
+ switch(sp->intr_type) {
+ case INTA:
+ DBG_PRINT(ERR_DBG, "%s: Interrupt type INTA\n", dev->name);
+ break;
+ case MSI:
+ DBG_PRINT(ERR_DBG, "%s: Interrupt type MSI\n", dev->name);
+ break;
+ case MSI_X:
+ DBG_PRINT(ERR_DBG, "%s: Interrupt type MSI-X\n", dev->name);
+ break;
+ }
+ if (sp->lro)
+ DBG_PRINT(ERR_DBG, "%s: Large receive offload enabled\n",
+ dev->name);
/* Initialize device name */
- strcpy(sp->name, dev->name);
- if (sp->device_type & XFRAME_II_DEVICE)
- strcat(sp->name, ": Neterion Xframe II 10GbE adapter");
- else
- strcat(sp->name, ": Neterion Xframe I 10GbE adapter");
+ sprintf(sp->name, "%s Neterion %s", dev->name, sp->product_name);
/* Initialize bimodal Interrupts */
sp->config.bimodal = bimodal;
* Description: This function is the cleanup routine for the driver. It unregist * ers the driver.
*/
-void s2io_closer(void)
+static void s2io_closer(void)
{
pci_unregister_driver(&s2io_driver);
DBG_PRINT(INIT_DBG, "cleanup done\n");
module_init(s2io_starter);
module_exit(s2io_closer);
+
+static int check_L2_lro_capable(u8 *buffer, struct iphdr **ip,
+ struct tcphdr **tcp, RxD_t *rxdp)
+{
+ int ip_off;
+ u8 l2_type = (u8)((rxdp->Control_1 >> 37) & 0x7), ip_len;
+
+ if (!(rxdp->Control_1 & RXD_FRAME_PROTO_TCP)) {
+ DBG_PRINT(INIT_DBG,"%s: Non-TCP frames not supported for LRO\n",
+ __FUNCTION__);
+ return -1;
+ }
+
+ /* TODO:
+ * By default the VLAN field in the MAC is stripped by the card, if this
+ * feature is turned off in rx_pa_cfg register, then the ip_off field
+ * has to be shifted by a further 2 bytes
+ */
+ switch (l2_type) {
+ case 0: /* DIX type */
+ case 4: /* DIX type with VLAN */
+ ip_off = HEADER_ETHERNET_II_802_3_SIZE;
+ break;
+ /* LLC, SNAP etc are considered non-mergeable */
+ default:
+ return -1;
+ }
+
+ *ip = (struct iphdr *)((u8 *)buffer + ip_off);
+ ip_len = (u8)((*ip)->ihl);
+ ip_len <<= 2;
+ *tcp = (struct tcphdr *)((unsigned long)*ip + ip_len);
+
+ return 0;
+}
+
+static int check_for_socket_match(lro_t *lro, struct iphdr *ip,
+ struct tcphdr *tcp)
+{
+ DBG_PRINT(INFO_DBG,"%s: Been here...\n", __FUNCTION__);
+ if ((lro->iph->saddr != ip->saddr) || (lro->iph->daddr != ip->daddr) ||
+ (lro->tcph->source != tcp->source) || (lro->tcph->dest != tcp->dest))
+ return -1;
+ return 0;
+}
+
+static inline int get_l4_pyld_length(struct iphdr *ip, struct tcphdr *tcp)
+{
+ return(ntohs(ip->tot_len) - (ip->ihl << 2) - (tcp->doff << 2));
+}
+
+static void initiate_new_session(lro_t *lro, u8 *l2h,
+ struct iphdr *ip, struct tcphdr *tcp, u32 tcp_pyld_len)
+{
+ DBG_PRINT(INFO_DBG,"%s: Been here...\n", __FUNCTION__);
+ lro->l2h = l2h;
+ lro->iph = ip;
+ lro->tcph = tcp;
+ lro->tcp_next_seq = tcp_pyld_len + ntohl(tcp->seq);
+ lro->tcp_ack = ntohl(tcp->ack_seq);
+ lro->sg_num = 1;
+ lro->total_len = ntohs(ip->tot_len);
+ lro->frags_len = 0;
+ /*
+ * check if we saw TCP timestamp. Other consistency checks have
+ * already been done.
+ */
+ if (tcp->doff == 8) {
+ u32 *ptr;
+ ptr = (u32 *)(tcp+1);
+ lro->saw_ts = 1;
+ lro->cur_tsval = *(ptr+1);
+ lro->cur_tsecr = *(ptr+2);
+ }
+ lro->in_use = 1;
+}
+
+static void update_L3L4_header(nic_t *sp, lro_t *lro)
+{
+ struct iphdr *ip = lro->iph;
+ struct tcphdr *tcp = lro->tcph;
+ u16 nchk;
+ StatInfo_t *statinfo = sp->mac_control.stats_info;
+ DBG_PRINT(INFO_DBG,"%s: Been here...\n", __FUNCTION__);
+
+ /* Update L3 header */
+ ip->tot_len = htons(lro->total_len);
+ ip->check = 0;
+ nchk = ip_fast_csum((u8 *)lro->iph, ip->ihl);
+ ip->check = nchk;
+
+ /* Update L4 header */
+ tcp->ack_seq = lro->tcp_ack;
+ tcp->window = lro->window;
+
+ /* Update tsecr field if this session has timestamps enabled */
+ if (lro->saw_ts) {
+ u32 *ptr = (u32 *)(tcp + 1);
+ *(ptr+2) = lro->cur_tsecr;
+ }
+
+ /* Update counters required for calculation of
+ * average no. of packets aggregated.
+ */
+ statinfo->sw_stat.sum_avg_pkts_aggregated += lro->sg_num;
+ statinfo->sw_stat.num_aggregations++;
+}
+
+static void aggregate_new_rx(lro_t *lro, struct iphdr *ip,
+ struct tcphdr *tcp, u32 l4_pyld)
+{
+ DBG_PRINT(INFO_DBG,"%s: Been here...\n", __FUNCTION__);
+ lro->total_len += l4_pyld;
+ lro->frags_len += l4_pyld;
+ lro->tcp_next_seq += l4_pyld;
+ lro->sg_num++;
+
+ /* Update ack seq no. and window ad(from this pkt) in LRO object */
+ lro->tcp_ack = tcp->ack_seq;
+ lro->window = tcp->window;
+
+ if (lro->saw_ts) {
+ u32 *ptr;
+ /* Update tsecr and tsval from this packet */
+ ptr = (u32 *) (tcp + 1);
+ lro->cur_tsval = *(ptr + 1);
+ lro->cur_tsecr = *(ptr + 2);
+ }
+}
+
+static int verify_l3_l4_lro_capable(lro_t *l_lro, struct iphdr *ip,
+ struct tcphdr *tcp, u32 tcp_pyld_len)
+{
+ u8 *ptr;
+
+ DBG_PRINT(INFO_DBG,"%s: Been here...\n", __FUNCTION__);
+
+ if (!tcp_pyld_len) {
+ /* Runt frame or a pure ack */
+ return -1;
+ }
+
+ if (ip->ihl != 5) /* IP has options */
+ return -1;
+
+ if (tcp->urg || tcp->psh || tcp->rst || tcp->syn || tcp->fin ||
+ !tcp->ack) {
+ /*
+ * Currently recognize only the ack control word and
+ * any other control field being set would result in
+ * flushing the LRO session
+ */
+ return -1;
+ }
+
+ /*
+ * Allow only one TCP timestamp option. Don't aggregate if
+ * any other options are detected.
+ */
+ if (tcp->doff != 5 && tcp->doff != 8)
+ return -1;
+
+ if (tcp->doff == 8) {
+ ptr = (u8 *)(tcp + 1);
+ while (*ptr == TCPOPT_NOP)
+ ptr++;
+ if (*ptr != TCPOPT_TIMESTAMP || *(ptr+1) != TCPOLEN_TIMESTAMP)
+ return -1;
+
+ /* Ensure timestamp value increases monotonically */
+ if (l_lro)
+ if (l_lro->cur_tsval > *((u32 *)(ptr+2)))
+ return -1;
+
+ /* timestamp echo reply should be non-zero */
+ if (*((u32 *)(ptr+6)) == 0)
+ return -1;
+ }
+
+ return 0;
+}
+
+static int
+s2io_club_tcp_session(u8 *buffer, u8 **tcp, u32 *tcp_len, lro_t **lro,
+ RxD_t *rxdp, nic_t *sp)
+{
+ struct iphdr *ip;
+ struct tcphdr *tcph;
+ int ret = 0, i;
+
+ if (!(ret = check_L2_lro_capable(buffer, &ip, (struct tcphdr **)tcp,
+ rxdp))) {
+ DBG_PRINT(INFO_DBG,"IP Saddr: %x Daddr: %x\n",
+ ip->saddr, ip->daddr);
+ } else {
+ return ret;
+ }
+
+ tcph = (struct tcphdr *)*tcp;
+ *tcp_len = get_l4_pyld_length(ip, tcph);
+ for (i=0; i<MAX_LRO_SESSIONS; i++) {
+ lro_t *l_lro = &sp->lro0_n[i];
+ if (l_lro->in_use) {
+ if (check_for_socket_match(l_lro, ip, tcph))
+ continue;
+ /* Sock pair matched */
+ *lro = l_lro;
+
+ if ((*lro)->tcp_next_seq != ntohl(tcph->seq)) {
+ DBG_PRINT(INFO_DBG, "%s:Out of order. expected "
+ "0x%x, actual 0x%x\n", __FUNCTION__,
+ (*lro)->tcp_next_seq,
+ ntohl(tcph->seq));
+
+ sp->mac_control.stats_info->
+ sw_stat.outof_sequence_pkts++;
+ ret = 2;
+ break;
+ }
+
+ if (!verify_l3_l4_lro_capable(l_lro, ip, tcph,*tcp_len))
+ ret = 1; /* Aggregate */
+ else
+ ret = 2; /* Flush both */
+ break;
+ }
+ }
+
+ if (ret == 0) {
+ /* Before searching for available LRO objects,
+ * check if the pkt is L3/L4 aggregatable. If not
+ * don't create new LRO session. Just send this
+ * packet up.
+ */
+ if (verify_l3_l4_lro_capable(NULL, ip, tcph, *tcp_len)) {
+ return 5;
+ }
+
+ for (i=0; i<MAX_LRO_SESSIONS; i++) {
+ lro_t *l_lro = &sp->lro0_n[i];
+ if (!(l_lro->in_use)) {
+ *lro = l_lro;
+ ret = 3; /* Begin anew */
+ break;
+ }
+ }
+ }
+
+ if (ret == 0) { /* sessions exceeded */
+ DBG_PRINT(INFO_DBG,"%s:All LRO sessions already in use\n",
+ __FUNCTION__);
+ *lro = NULL;
+ return ret;
+ }
+
+ switch (ret) {
+ case 3:
+ initiate_new_session(*lro, buffer, ip, tcph, *tcp_len);
+ break;
+ case 2:
+ update_L3L4_header(sp, *lro);
+ break;
+ case 1:
+ aggregate_new_rx(*lro, ip, tcph, *tcp_len);
+ if ((*lro)->sg_num == sp->lro_max_aggr_per_sess) {
+ update_L3L4_header(sp, *lro);
+ ret = 4; /* Flush the LRO */
+ }
+ break;
+ default:
+ DBG_PRINT(ERR_DBG,"%s:Dont know, can't say!!\n",
+ __FUNCTION__);
+ break;
+ }
+
+ return ret;
+}
+
+static void clear_lro_session(lro_t *lro)
+{
+ static u16 lro_struct_size = sizeof(lro_t);
+
+ memset(lro, 0, lro_struct_size);
+}
+
+static void queue_rx_frame(struct sk_buff *skb)
+{
+ struct net_device *dev = skb->dev;
+
+ skb->protocol = eth_type_trans(skb, dev);
+#ifdef CONFIG_S2IO_NAPI
+ netif_receive_skb(skb);
+#else
+ netif_rx(skb);
+#endif
+}
+
+static void lro_append_pkt(nic_t *sp, lro_t *lro, struct sk_buff *skb,
+ u32 tcp_len)
+{
+ struct sk_buff *tmp, *first = lro->parent;
+
+ first->len += tcp_len;
+ first->data_len = lro->frags_len;
+ skb_pull(skb, (skb->len - tcp_len));
+ if ((tmp = skb_shinfo(first)->frag_list)) {
+ while (tmp->next)
+ tmp = tmp->next;
+ tmp->next = skb;
+ }
+ else
+ skb_shinfo(first)->frag_list = skb;
+ sp->mac_control.stats_info->sw_stat.clubbed_frms_cnt++;
+ return;
+}