/**
* t3_mc5_intr_handler - MC5 interrupt handler
* @mc5: the MC5 handle
*
* The MC5 interrupt handler.
*/
void t3_mc5_intr_handler(struct mc5 *mc5)
{
adapter_t *adap = mc5->adapter;
u32 cause = t3_read_reg(adap, A_MC5_DB_INT_CAUSE);
if ((cause & F_PARITYERR) && mc5->parity_enabled) {
CH_ALERT(adap, "MC5 parity error\n");
mc5->stats.parity_err++;
}
if (cause & F_REQQPARERR) {
CH_ALERT(adap, "MC5 request queue parity error\n");
mc5->stats.reqq_parity_err++;
}
if (cause & F_DISPQPARERR) {
CH_ALERT(adap, "MC5 dispatch queue parity error\n");
mc5->stats.dispq_parity_err++;
}
if (cause & F_ACTRGNFULL)
mc5->stats.active_rgn_full++;
if (cause & F_NFASRCHFAIL)
mc5->stats.nfa_srch_err++;
if (cause & F_UNKNOWNCMD)
mc5->stats.unknown_cmd++;
if (cause & F_DELACTEMPTY)
mc5->stats.del_act_empty++;
if (cause & MC5_INT_FATAL)
t3_fatal_err(adap);
t3_write_reg(adap, A_MC5_DB_INT_CAUSE, cause);
}
void t1_fatal_err(struct adapter *adapter)
{
if (adapter->flags & FULL_INIT_DONE) {
t1_sge_stop(adapter->sge);
t1_interrupts_disable(adapter);
}
CH_ALERT("%s: encountered fatal error, operation suspended\n",
adapter->name);
}
int t1_mc4_intr_handler(struct pemc4 *mc4)
{
adapter_t *adapter = mc4->adapter;
u32 cause = t1_read_reg_4(adapter, A_MC4_INT_CAUSE);
if (cause & F_MC4_CORR_ERR) {
mc4->intr_cnt.corr_err++;
CH_WARN("%s: MC4 correctable error at addr 0x%x, "
"data 0x%x 0x%x 0x%x 0x%x 0x%x\n",
adapter_name(adapter),
G_MC4_CE_ADDR(t1_read_reg_4(adapter, A_MC4_CE_ADDR)),
t1_read_reg_4(adapter, A_MC4_CE_DATA0),
t1_read_reg_4(adapter, A_MC4_CE_DATA1),
t1_read_reg_4(adapter, A_MC4_CE_DATA2),
t1_read_reg_4(adapter, A_MC4_CE_DATA3),
t1_read_reg_4(adapter, A_MC4_CE_DATA4));
}
if (cause & F_MC4_UNCORR_ERR) {
mc4->intr_cnt.uncorr_err++;
CH_ALERT("%s: MC4 uncorrectable error at addr 0x%x, "
"data 0x%x 0x%x 0x%x 0x%x 0x%x\n",
adapter_name(adapter),
G_MC4_UE_ADDR(t1_read_reg_4(adapter, A_MC4_UE_ADDR)),
t1_read_reg_4(adapter, A_MC4_UE_DATA0),
t1_read_reg_4(adapter, A_MC4_UE_DATA1),
t1_read_reg_4(adapter, A_MC4_UE_DATA2),
t1_read_reg_4(adapter, A_MC4_UE_DATA3),
t1_read_reg_4(adapter, A_MC4_UE_DATA4));
}
if (cause & F_MC4_ADDR_ERR) {
mc4->intr_cnt.addr_err++;
CH_ALERT("%s: MC4 address error\n", adapter_name(adapter));
}
if (cause & MC4_INT_FATAL)
t1_fatal_err(adapter);
t1_write_reg_4(mc4->adapter, A_MC4_INT_CAUSE, cause);
return 0;
}
/*
* Write a register over the TPI interface (unlocked and locked versions).
*/
int __t1_tpi_write(adapter_t *adapter, u32 addr, u32 value)
{
int tpi_busy;
writel(addr, adapter->regs + A_TPI_ADDR);
writel(value, adapter->regs + A_TPI_WR_DATA);
writel(F_TPIWR, adapter->regs + A_TPI_CSR);
tpi_busy = t1_wait_op_done(adapter, A_TPI_CSR, F_TPIRDY, 1,
TPI_ATTEMPTS, 3);
if (tpi_busy)
CH_ALERT("%s: TPI write to 0x%x failed\n",
adapter->name, addr);
return tpi_busy;
}
/*
* Wait until Elmer's MI1 interface is ready for new operations.
*/
static int mi1_wait_until_ready(adapter_t *adapter, int mi1_reg)
{
int attempts = 100, busy;
do {
u32 val;
__t1_tpi_read(adapter, mi1_reg, &val);
busy = val & F_MI1_OP_BUSY;
if (busy)
udelay(10);
} while (busy && --attempts);
if (busy)
CH_ALERT("%s: MDIO operation timed out\n", adapter->name);
return busy;
}
/*
* Read a register over the TPI interface (unlocked and locked versions).
*/
int __t1_tpi_read(adapter_t *adapter, u32 addr, u32 *valp)
{
int tpi_busy;
writel(addr, adapter->regs + A_TPI_ADDR);
writel(0, adapter->regs + A_TPI_CSR);
tpi_busy = t1_wait_op_done(adapter, A_TPI_CSR, F_TPIRDY, 1,
TPI_ATTEMPTS, 3);
if (tpi_busy)
CH_ALERT("%s: TPI read from 0x%x failed\n",
adapter->name, addr);
else
*valp = readl(adapter->regs + A_TPI_RD_DATA);
return tpi_busy;
}
int t1_mc3_intr_handler(struct pemc3 *mc3)
{
adapter_t *adapter = mc3->adapter;
int cause_reg = A_MC3_INT_CAUSE;
u32 cause;
#ifdef CONFIG_CHELSIO_T1_1G
if (!t1_is_asic(adapter))
cause_reg = FPGA_MC3_REG_INTRCAUSE;
#endif
cause = t1_read_reg_4(adapter, cause_reg);
if (cause & F_MC3_CORR_ERR) {
mc3->intr_cnt.corr_err++;
CH_WARN("%s: MC3 correctable error at addr 0x%x, "
"data 0x%x 0x%x 0x%x 0x%x 0x%x\n",
adapter_name(adapter),
G_MC3_CE_ADDR(t1_read_reg_4(adapter, A_MC3_CE_ADDR)),
t1_read_reg_4(adapter, A_MC3_CE_DATA0),
t1_read_reg_4(adapter, A_MC3_CE_DATA1),
t1_read_reg_4(adapter, A_MC3_CE_DATA2),
t1_read_reg_4(adapter, A_MC3_CE_DATA3),
t1_read_reg_4(adapter, A_MC3_CE_DATA4));
}
if (cause & F_MC3_UNCORR_ERR) {
mc3->intr_cnt.uncorr_err++;
CH_ALERT("%s: MC3 uncorrectable error at addr 0x%x, "
"data 0x%x 0x%x 0x%x 0x%x 0x%x\n",
adapter_name(adapter),
G_MC3_UE_ADDR(t1_read_reg_4(adapter, A_MC3_UE_ADDR)),
t1_read_reg_4(adapter, A_MC3_UE_DATA0),
t1_read_reg_4(adapter, A_MC3_UE_DATA1),
t1_read_reg_4(adapter, A_MC3_UE_DATA2),
t1_read_reg_4(adapter, A_MC3_UE_DATA3),
t1_read_reg_4(adapter, A_MC3_UE_DATA4));
}
if (G_MC3_PARITY_ERR(cause)) {
mc3->intr_cnt.parity_err++;
CH_ALERT("%s: MC3 parity error 0x%x\n", adapter_name(adapter),
G_MC3_PARITY_ERR(cause));
}
if (cause & F_MC3_ADDR_ERR) {
mc3->intr_cnt.addr_err++;
CH_ALERT("%s: MC3 address error\n", adapter_name(adapter));
}
if (cause & MC3_INTR_FATAL)
t1_fatal_err(adapter);
if (t1_is_T1B(adapter)) {
/*
* Workaround for T1B bug: we must write to enable register to
* clear interrupts.
*/
t1_write_reg_4(adapter, A_MC3_INT_ENABLE, cause);
/* restore enable */
t1_write_reg_4(adapter, A_MC3_INT_ENABLE, MC3_INTR_MASK);
} else
t1_write_reg_4(adapter, cause_reg, cause);
return 0;
}
