From a71116d1f3b85a69fe3a3acec9223fefb4b1fc66 Mon Sep 17 00:00:00 2001 From: Michael Chan <mchan@broadcom.com> Date: Sun, 29 May 2005 14:58:11 -0700 Subject: [PATCH] [TG3]: Add register test Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net> --- drivers/net/tg3.c | 241 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 241 insertions(+) diff --git a/drivers/net/tg3.c b/drivers/net/tg3.c index 73f6e962ed5e..4589f8f90119 100644 --- a/drivers/net/tg3.c +++ b/drivers/net/tg3.c @@ -7307,6 +7307,219 @@ static int tg3_test_link(struct tg3 *tp) return -EIO; } +/* Only test the commonly used registers */ +static int tg3_test_registers(struct tg3 *tp) +{ + int i, is_5705; + u32 offset, read_mask, write_mask, val, save_val, read_val; + static struct { + u16 offset; + u16 flags; +#define TG3_FL_5705 0x1 +#define TG3_FL_NOT_5705 0x2 +#define TG3_FL_NOT_5788 0x4 + u32 read_mask; + u32 write_mask; + } reg_tbl[] = { + /* MAC Control Registers */ + { MAC_MODE, TG3_FL_NOT_5705, + 0x00000000, 0x00ef6f8c }, + { MAC_MODE, TG3_FL_5705, + 0x00000000, 0x01ef6b8c }, + { MAC_STATUS, TG3_FL_NOT_5705, + 0x03800107, 0x00000000 }, + { MAC_STATUS, TG3_FL_5705, + 0x03800100, 0x00000000 }, + { MAC_ADDR_0_HIGH, 0x0000, + 0x00000000, 0x0000ffff }, + { MAC_ADDR_0_LOW, 0x0000, + 0x00000000, 0xffffffff }, + { MAC_RX_MTU_SIZE, 0x0000, + 0x00000000, 0x0000ffff }, + { MAC_TX_MODE, 0x0000, + 0x00000000, 0x00000070 }, + { MAC_TX_LENGTHS, 0x0000, + 0x00000000, 0x00003fff }, + { MAC_RX_MODE, TG3_FL_NOT_5705, + 0x00000000, 0x000007fc }, + { MAC_RX_MODE, TG3_FL_5705, + 0x00000000, 0x000007dc }, + { MAC_HASH_REG_0, 0x0000, + 0x00000000, 0xffffffff }, + { MAC_HASH_REG_1, 0x0000, + 0x00000000, 0xffffffff }, + { MAC_HASH_REG_2, 0x0000, + 0x00000000, 0xffffffff }, + { MAC_HASH_REG_3, 0x0000, + 0x00000000, 0xffffffff }, + + /* Receive Data and Receive BD Initiator Control Registers. */ + { RCVDBDI_JUMBO_BD+0, TG3_FL_NOT_5705, + 0x00000000, 0xffffffff }, + { RCVDBDI_JUMBO_BD+4, TG3_FL_NOT_5705, + 0x00000000, 0xffffffff }, + { RCVDBDI_JUMBO_BD+8, TG3_FL_NOT_5705, + 0x00000000, 0x00000003 }, + { RCVDBDI_JUMBO_BD+0xc, TG3_FL_NOT_5705, + 0x00000000, 0xffffffff }, + { RCVDBDI_STD_BD+0, 0x0000, + 0x00000000, 0xffffffff }, + { RCVDBDI_STD_BD+4, 0x0000, + 0x00000000, 0xffffffff }, + { RCVDBDI_STD_BD+8, 0x0000, + 0x00000000, 0xffff0002 }, + { RCVDBDI_STD_BD+0xc, 0x0000, + 0x00000000, 0xffffffff }, + + /* Receive BD Initiator Control Registers. */ + { RCVBDI_STD_THRESH, TG3_FL_NOT_5705, + 0x00000000, 0xffffffff }, + { RCVBDI_STD_THRESH, TG3_FL_5705, + 0x00000000, 0x000003ff }, + { RCVBDI_JUMBO_THRESH, TG3_FL_NOT_5705, + 0x00000000, 0xffffffff }, + + /* Host Coalescing Control Registers. */ + { HOSTCC_MODE, TG3_FL_NOT_5705, + 0x00000000, 0x00000004 }, + { HOSTCC_MODE, TG3_FL_5705, + 0x00000000, 0x000000f6 }, + { HOSTCC_RXCOL_TICKS, TG3_FL_NOT_5705, + 0x00000000, 0xffffffff }, + { HOSTCC_RXCOL_TICKS, TG3_FL_5705, + 0x00000000, 0x000003ff }, + { HOSTCC_TXCOL_TICKS, TG3_FL_NOT_5705, + 0x00000000, 0xffffffff }, + { HOSTCC_TXCOL_TICKS, TG3_FL_5705, + 0x00000000, 0x000003ff }, + { HOSTCC_RXMAX_FRAMES, TG3_FL_NOT_5705, + 0x00000000, 0xffffffff }, + { HOSTCC_RXMAX_FRAMES, TG3_FL_5705 | TG3_FL_NOT_5788, + 0x00000000, 0x000000ff }, + { HOSTCC_TXMAX_FRAMES, TG3_FL_NOT_5705, + 0x00000000, 0xffffffff }, + { HOSTCC_TXMAX_FRAMES, TG3_FL_5705 | TG3_FL_NOT_5788, + 0x00000000, 0x000000ff }, + { HOSTCC_RXCOAL_TICK_INT, TG3_FL_NOT_5705, + 0x00000000, 0xffffffff }, + { HOSTCC_TXCOAL_TICK_INT, TG3_FL_NOT_5705, + 0x00000000, 0xffffffff }, + { HOSTCC_RXCOAL_MAXF_INT, TG3_FL_NOT_5705, + 0x00000000, 0xffffffff }, + { HOSTCC_RXCOAL_MAXF_INT, TG3_FL_5705 | TG3_FL_NOT_5788, + 0x00000000, 0x000000ff }, + { HOSTCC_TXCOAL_MAXF_INT, TG3_FL_NOT_5705, + 0x00000000, 0xffffffff }, + { HOSTCC_TXCOAL_MAXF_INT, TG3_FL_5705 | TG3_FL_NOT_5788, + 0x00000000, 0x000000ff }, + { HOSTCC_STAT_COAL_TICKS, TG3_FL_NOT_5705, + 0x00000000, 0xffffffff }, + { HOSTCC_STATS_BLK_HOST_ADDR, TG3_FL_NOT_5705, + 0x00000000, 0xffffffff }, + { HOSTCC_STATS_BLK_HOST_ADDR+4, TG3_FL_NOT_5705, + 0x00000000, 0xffffffff }, + { HOSTCC_STATUS_BLK_HOST_ADDR, 0x0000, + 0x00000000, 0xffffffff }, + { HOSTCC_STATUS_BLK_HOST_ADDR+4, 0x0000, + 0x00000000, 0xffffffff }, + { HOSTCC_STATS_BLK_NIC_ADDR, 0x0000, + 0xffffffff, 0x00000000 }, + { HOSTCC_STATUS_BLK_NIC_ADDR, 0x0000, + 0xffffffff, 0x00000000 }, + + /* Buffer Manager Control Registers. */ + { BUFMGR_MB_POOL_ADDR, 0x0000, + 0x00000000, 0x007fff80 }, + { BUFMGR_MB_POOL_SIZE, 0x0000, + 0x00000000, 0x007fffff }, + { BUFMGR_MB_RDMA_LOW_WATER, 0x0000, + 0x00000000, 0x0000003f }, + { BUFMGR_MB_MACRX_LOW_WATER, 0x0000, + 0x00000000, 0x000001ff }, + { BUFMGR_MB_HIGH_WATER, 0x0000, + 0x00000000, 0x000001ff }, + { BUFMGR_DMA_DESC_POOL_ADDR, TG3_FL_NOT_5705, + 0xffffffff, 0x00000000 }, + { BUFMGR_DMA_DESC_POOL_SIZE, TG3_FL_NOT_5705, + 0xffffffff, 0x00000000 }, + + /* Mailbox Registers */ + { GRCMBOX_RCVSTD_PROD_IDX+4, 0x0000, + 0x00000000, 0x000001ff }, + { GRCMBOX_RCVJUMBO_PROD_IDX+4, TG3_FL_NOT_5705, + 0x00000000, 0x000001ff }, + { GRCMBOX_RCVRET_CON_IDX_0+4, 0x0000, + 0x00000000, 0x000007ff }, + { GRCMBOX_SNDHOST_PROD_IDX_0+4, 0x0000, + 0x00000000, 0x000001ff }, + + { 0xffff, 0x0000, 0x00000000, 0x00000000 }, + }; + + if (tp->tg3_flags2 & TG3_FLG2_5705_PLUS) + is_5705 = 1; + else + is_5705 = 0; + + for (i = 0; reg_tbl[i].offset != 0xffff; i++) { + if (is_5705 && (reg_tbl[i].flags & TG3_FL_NOT_5705)) + continue; + + if (!is_5705 && (reg_tbl[i].flags & TG3_FL_5705)) + continue; + + if ((tp->tg3_flags2 & TG3_FLG2_IS_5788) && + (reg_tbl[i].flags & TG3_FL_NOT_5788)) + continue; + + offset = (u32) reg_tbl[i].offset; + read_mask = reg_tbl[i].read_mask; + write_mask = reg_tbl[i].write_mask; + + /* Save the original register content */ + save_val = tr32(offset); + + /* Determine the read-only value. */ + read_val = save_val & read_mask; + + /* Write zero to the register, then make sure the read-only bits + * are not changed and the read/write bits are all zeros. + */ + tw32(offset, 0); + + val = tr32(offset); + + /* Test the read-only and read/write bits. */ + if (((val & read_mask) != read_val) || (val & write_mask)) + goto out; + + /* Write ones to all the bits defined by RdMask and WrMask, then + * make sure the read-only bits are not changed and the + * read/write bits are all ones. + */ + tw32(offset, read_mask | write_mask); + + val = tr32(offset); + + /* Test the read-only bits. */ + if ((val & read_mask) != read_val) + goto out; + + /* Test the read/write bits. */ + if ((val & write_mask) != write_mask) + goto out; + + tw32(offset, save_val); + } + + return 0; + +out: + printk(KERN_ERR PFX "Register test failed at offset %x\n", offset); + tw32(offset, save_val); + return -EIO; +} + static void tg3_self_test(struct net_device *dev, struct ethtool_test *etest, u64 *data) { @@ -7322,6 +7535,34 @@ static void tg3_self_test(struct net_device *dev, struct ethtool_test *etest, etest->flags |= ETH_TEST_FL_FAILED; data[1] = 1; } + if (etest->flags & ETH_TEST_FL_OFFLINE) { + if (netif_running(dev)) + tg3_netif_stop(tp); + + spin_lock_irq(&tp->lock); + spin_lock(&tp->tx_lock); + + tg3_halt(tp, RESET_KIND_SUSPEND, 1); + tg3_nvram_lock(tp); + tg3_halt_cpu(tp, RX_CPU_BASE); + if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS)) + tg3_halt_cpu(tp, TX_CPU_BASE); + tg3_nvram_unlock(tp); + + if (tg3_test_registers(tp) != 0) { + etest->flags |= ETH_TEST_FL_FAILED; + data[2] = 1; + } + + tg3_halt(tp, RESET_KIND_SHUTDOWN, 1); + if (netif_running(dev)) { + tp->tg3_flags |= TG3_FLAG_INIT_COMPLETE; + tg3_init_hw(tp); + tg3_netif_start(tp); + } + spin_unlock(&tp->tx_lock); + spin_unlock_irq(&tp->lock); + } } static int tg3_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) -- 2.30.9