1 /**************************************************************************
3 Copyright (c) 2007-2009, Chelsio Inc.
6 Redistribution and use in source and binary forms, with or without
7 modification, are permitted provided that the following conditions are met:
9 1. Redistributions of source code must retain the above copyright notice,
10 this list of conditions and the following disclaimer.
12 2. Neither the name of the Chelsio Corporation nor the names of its
13 contributors may be used to endorse or promote products derived from
14 this software without specific prior written permission.
16 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
17 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
20 LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21 CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22 SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
23 INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
24 CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
25 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26 POSSIBILITY OF SUCH DAMAGE.
28 ***************************************************************************/
30 #include <sys/cdefs.h>
31 __FBSDID("$FreeBSD$");
34 #include <cxgb_include.h>
37 #define msleep t3_os_sleep
40 * t3_wait_op_done_val - wait until an operation is completed
41 * @adapter: the adapter performing the operation
42 * @reg: the register to check for completion
43 * @mask: a single-bit field within @reg that indicates completion
44 * @polarity: the value of the field when the operation is completed
45 * @attempts: number of check iterations
46 * @delay: delay in usecs between iterations
47 * @valp: where to store the value of the register at completion time
49 * Wait until an operation is completed by checking a bit in a register
50 * up to @attempts times. If @valp is not NULL the value of the register
51 * at the time it indicated completion is stored there. Returns 0 if the
52 * operation completes and -EAGAIN otherwise.
54 int t3_wait_op_done_val(adapter_t *adapter, int reg, u32 mask, int polarity,
55 int attempts, int delay, u32 *valp)
58 u32 val = t3_read_reg(adapter, reg);
60 if (!!(val & mask) == polarity) {
73 * t3_write_regs - write a bunch of registers
74 * @adapter: the adapter to program
75 * @p: an array of register address/register value pairs
76 * @n: the number of address/value pairs
77 * @offset: register address offset
79 * Takes an array of register address/register value pairs and writes each
80 * value to the corresponding register. Register addresses are adjusted
81 * by the supplied offset.
83 void t3_write_regs(adapter_t *adapter, const struct addr_val_pair *p, int n,
87 t3_write_reg(adapter, p->reg_addr + offset, p->val);
93 * t3_set_reg_field - set a register field to a value
94 * @adapter: the adapter to program
95 * @addr: the register address
96 * @mask: specifies the portion of the register to modify
97 * @val: the new value for the register field
99 * Sets a register field specified by the supplied mask to the
102 void t3_set_reg_field(adapter_t *adapter, unsigned int addr, u32 mask, u32 val)
104 u32 v = t3_read_reg(adapter, addr) & ~mask;
106 t3_write_reg(adapter, addr, v | val);
107 (void) t3_read_reg(adapter, addr); /* flush */
111 * t3_read_indirect - read indirectly addressed registers
113 * @addr_reg: register holding the indirect address
114 * @data_reg: register holding the value of the indirect register
115 * @vals: where the read register values are stored
116 * @start_idx: index of first indirect register to read
117 * @nregs: how many indirect registers to read
119 * Reads registers that are accessed indirectly through an address/data
122 static void t3_read_indirect(adapter_t *adap, unsigned int addr_reg,
123 unsigned int data_reg, u32 *vals, unsigned int nregs,
124 unsigned int start_idx)
127 t3_write_reg(adap, addr_reg, start_idx);
128 *vals++ = t3_read_reg(adap, data_reg);
134 * t3_mc7_bd_read - read from MC7 through backdoor accesses
135 * @mc7: identifies MC7 to read from
136 * @start: index of first 64-bit word to read
137 * @n: number of 64-bit words to read
138 * @buf: where to store the read result
140 * Read n 64-bit words from MC7 starting at word start, using backdoor
143 int t3_mc7_bd_read(struct mc7 *mc7, unsigned int start, unsigned int n,
146 static int shift[] = { 0, 0, 16, 24 };
147 static int step[] = { 0, 32, 16, 8 };
149 unsigned int size64 = mc7->size / 8; /* # of 64-bit words */
150 adapter_t *adap = mc7->adapter;
152 if (start >= size64 || start + n > size64)
155 start *= (8 << mc7->width);
160 for (i = (1 << mc7->width) - 1; i >= 0; --i) {
164 t3_write_reg(adap, mc7->offset + A_MC7_BD_ADDR,
166 t3_write_reg(adap, mc7->offset + A_MC7_BD_OP, 0);
167 val = t3_read_reg(adap, mc7->offset + A_MC7_BD_OP);
168 while ((val & F_BUSY) && attempts--)
169 val = t3_read_reg(adap,
170 mc7->offset + A_MC7_BD_OP);
174 val = t3_read_reg(adap, mc7->offset + A_MC7_BD_DATA1);
175 if (mc7->width == 0) {
176 val64 = t3_read_reg(adap,
177 mc7->offset + A_MC7_BD_DATA0);
178 val64 |= (u64)val << 32;
181 val >>= shift[mc7->width];
182 val64 |= (u64)val << (step[mc7->width] * i);
192 * Low-level I2C read and write routines. These simply read and write a
193 * single byte with the option of indicating a "continue" if another operation
194 * is to be chained. Generally most code will use higher-level routines to
195 * read and write to I2C Slave Devices.
197 #define I2C_ATTEMPTS 100
200 * Read an 8-bit value from the I2C bus. If the "chained" parameter is
201 * non-zero then a STOP bit will not be written after the read command. On
202 * error (the read timed out, etc.), a negative errno will be returned (e.g.
203 * -EAGAIN, etc.). On success, the 8-bit value read from the I2C bus is
204 * stored into the buffer *valp and the value of the I2C ACK bit is returned
207 int t3_i2c_read8(adapter_t *adapter, int chained, u8 *valp)
212 t3_write_reg(adapter, A_I2C_OP,
213 F_I2C_READ | (chained ? F_I2C_CONT : 0));
214 ret = t3_wait_op_done_val(adapter, A_I2C_OP, F_I2C_BUSY, 0,
215 I2C_ATTEMPTS, 10, &opval);
217 ret = ((opval & F_I2C_ACK) == F_I2C_ACK);
218 *valp = G_I2C_DATA(t3_read_reg(adapter, A_I2C_DATA));
220 MDIO_UNLOCK(adapter);
225 * Write an 8-bit value to the I2C bus. If the "chained" parameter is
226 * non-zero, then a STOP bit will not be written after the write command. On
227 * error (the write timed out, etc.), a negative errno will be returned (e.g.
228 * -EAGAIN, etc.). On success, the value of the I2C ACK bit is returned as a
231 int t3_i2c_write8(adapter_t *adapter, int chained, u8 val)
236 t3_write_reg(adapter, A_I2C_DATA, V_I2C_DATA(val));
237 t3_write_reg(adapter, A_I2C_OP,
238 F_I2C_WRITE | (chained ? F_I2C_CONT : 0));
239 ret = t3_wait_op_done_val(adapter, A_I2C_OP, F_I2C_BUSY, 0,
240 I2C_ATTEMPTS, 10, &opval);
242 ret = ((opval & F_I2C_ACK) == F_I2C_ACK);
243 MDIO_UNLOCK(adapter);
250 static void mi1_init(adapter_t *adap, const struct adapter_info *ai)
252 u32 clkdiv = adap->params.vpd.cclk / (2 * adap->params.vpd.mdc) - 1;
253 u32 val = F_PREEN | V_CLKDIV(clkdiv);
255 t3_write_reg(adap, A_MI1_CFG, val);
258 #define MDIO_ATTEMPTS 20
261 * MI1 read/write operations for clause 22 PHYs.
263 int t3_mi1_read(adapter_t *adapter, int phy_addr, int mmd_addr,
264 int reg_addr, unsigned int *valp)
267 u32 addr = V_REGADDR(reg_addr) | V_PHYADDR(phy_addr);
273 t3_set_reg_field(adapter, A_MI1_CFG, V_ST(M_ST), V_ST(1));
274 t3_write_reg(adapter, A_MI1_ADDR, addr);
275 t3_write_reg(adapter, A_MI1_OP, V_MDI_OP(2));
276 ret = t3_wait_op_done(adapter, A_MI1_OP, F_BUSY, 0, MDIO_ATTEMPTS, 10);
278 *valp = t3_read_reg(adapter, A_MI1_DATA);
279 MDIO_UNLOCK(adapter);
283 int t3_mi1_write(adapter_t *adapter, int phy_addr, int mmd_addr,
284 int reg_addr, unsigned int val)
287 u32 addr = V_REGADDR(reg_addr) | V_PHYADDR(phy_addr);
293 t3_set_reg_field(adapter, A_MI1_CFG, V_ST(M_ST), V_ST(1));
294 t3_write_reg(adapter, A_MI1_ADDR, addr);
295 t3_write_reg(adapter, A_MI1_DATA, val);
296 t3_write_reg(adapter, A_MI1_OP, V_MDI_OP(1));
297 ret = t3_wait_op_done(adapter, A_MI1_OP, F_BUSY, 0, MDIO_ATTEMPTS, 10);
298 MDIO_UNLOCK(adapter);
302 static struct mdio_ops mi1_mdio_ops = {
308 * MI1 read/write operations for clause 45 PHYs.
310 static int mi1_ext_read(adapter_t *adapter, int phy_addr, int mmd_addr,
311 int reg_addr, unsigned int *valp)
314 u32 addr = V_REGADDR(mmd_addr) | V_PHYADDR(phy_addr);
317 t3_set_reg_field(adapter, A_MI1_CFG, V_ST(M_ST), 0);
318 t3_write_reg(adapter, A_MI1_ADDR, addr);
319 t3_write_reg(adapter, A_MI1_DATA, reg_addr);
320 t3_write_reg(adapter, A_MI1_OP, V_MDI_OP(0));
321 ret = t3_wait_op_done(adapter, A_MI1_OP, F_BUSY, 0, MDIO_ATTEMPTS, 10);
323 t3_write_reg(adapter, A_MI1_OP, V_MDI_OP(3));
324 ret = t3_wait_op_done(adapter, A_MI1_OP, F_BUSY, 0,
327 *valp = t3_read_reg(adapter, A_MI1_DATA);
329 MDIO_UNLOCK(adapter);
333 static int mi1_ext_write(adapter_t *adapter, int phy_addr, int mmd_addr,
334 int reg_addr, unsigned int val)
337 u32 addr = V_REGADDR(mmd_addr) | V_PHYADDR(phy_addr);
340 t3_set_reg_field(adapter, A_MI1_CFG, V_ST(M_ST), 0);
341 t3_write_reg(adapter, A_MI1_ADDR, addr);
342 t3_write_reg(adapter, A_MI1_DATA, reg_addr);
343 t3_write_reg(adapter, A_MI1_OP, V_MDI_OP(0));
344 ret = t3_wait_op_done(adapter, A_MI1_OP, F_BUSY, 0, MDIO_ATTEMPTS, 10);
346 t3_write_reg(adapter, A_MI1_DATA, val);
347 t3_write_reg(adapter, A_MI1_OP, V_MDI_OP(1));
348 ret = t3_wait_op_done(adapter, A_MI1_OP, F_BUSY, 0,
351 MDIO_UNLOCK(adapter);
355 static struct mdio_ops mi1_mdio_ext_ops = {
361 * t3_mdio_change_bits - modify the value of a PHY register
362 * @phy: the PHY to operate on
363 * @mmd: the device address
364 * @reg: the register address
365 * @clear: what part of the register value to mask off
366 * @set: what part of the register value to set
368 * Changes the value of a PHY register by applying a mask to its current
369 * value and ORing the result with a new value.
371 int t3_mdio_change_bits(struct cphy *phy, int mmd, int reg, unsigned int clear,
377 ret = mdio_read(phy, mmd, reg, &val);
380 ret = mdio_write(phy, mmd, reg, val | set);
386 * t3_phy_reset - reset a PHY block
387 * @phy: the PHY to operate on
388 * @mmd: the device address of the PHY block to reset
389 * @wait: how long to wait for the reset to complete in 1ms increments
391 * Resets a PHY block and optionally waits for the reset to complete.
392 * @mmd should be 0 for 10/100/1000 PHYs and the device address to reset
395 int t3_phy_reset(struct cphy *phy, int mmd, int wait)
400 err = t3_mdio_change_bits(phy, mmd, MII_BMCR, BMCR_PDOWN, BMCR_RESET);
405 err = mdio_read(phy, mmd, MII_BMCR, &ctl);
411 } while (ctl && --wait);
417 * t3_phy_advertise - set the PHY advertisement registers for autoneg
418 * @phy: the PHY to operate on
419 * @advert: bitmap of capabilities the PHY should advertise
421 * Sets a 10/100/1000 PHY's advertisement registers to advertise the
422 * requested capabilities.
424 int t3_phy_advertise(struct cphy *phy, unsigned int advert)
427 unsigned int val = 0;
429 err = mdio_read(phy, 0, MII_CTRL1000, &val);
433 val &= ~(ADVERTISE_1000HALF | ADVERTISE_1000FULL);
434 if (advert & ADVERTISED_1000baseT_Half)
435 val |= ADVERTISE_1000HALF;
436 if (advert & ADVERTISED_1000baseT_Full)
437 val |= ADVERTISE_1000FULL;
439 err = mdio_write(phy, 0, MII_CTRL1000, val);
444 if (advert & ADVERTISED_10baseT_Half)
445 val |= ADVERTISE_10HALF;
446 if (advert & ADVERTISED_10baseT_Full)
447 val |= ADVERTISE_10FULL;
448 if (advert & ADVERTISED_100baseT_Half)
449 val |= ADVERTISE_100HALF;
450 if (advert & ADVERTISED_100baseT_Full)
451 val |= ADVERTISE_100FULL;
452 if (advert & ADVERTISED_Pause)
453 val |= ADVERTISE_PAUSE_CAP;
454 if (advert & ADVERTISED_Asym_Pause)
455 val |= ADVERTISE_PAUSE_ASYM;
456 return mdio_write(phy, 0, MII_ADVERTISE, val);
460 * t3_phy_advertise_fiber - set fiber PHY advertisement register
461 * @phy: the PHY to operate on
462 * @advert: bitmap of capabilities the PHY should advertise
464 * Sets a fiber PHY's advertisement register to advertise the
465 * requested capabilities.
467 int t3_phy_advertise_fiber(struct cphy *phy, unsigned int advert)
469 unsigned int val = 0;
471 if (advert & ADVERTISED_1000baseT_Half)
472 val |= ADVERTISE_1000XHALF;
473 if (advert & ADVERTISED_1000baseT_Full)
474 val |= ADVERTISE_1000XFULL;
475 if (advert & ADVERTISED_Pause)
476 val |= ADVERTISE_1000XPAUSE;
477 if (advert & ADVERTISED_Asym_Pause)
478 val |= ADVERTISE_1000XPSE_ASYM;
479 return mdio_write(phy, 0, MII_ADVERTISE, val);
483 * t3_set_phy_speed_duplex - force PHY speed and duplex
484 * @phy: the PHY to operate on
485 * @speed: requested PHY speed
486 * @duplex: requested PHY duplex
488 * Force a 10/100/1000 PHY's speed and duplex. This also disables
489 * auto-negotiation except for GigE, where auto-negotiation is mandatory.
491 int t3_set_phy_speed_duplex(struct cphy *phy, int speed, int duplex)
496 err = mdio_read(phy, 0, MII_BMCR, &ctl);
501 ctl &= ~(BMCR_SPEED100 | BMCR_SPEED1000 | BMCR_ANENABLE);
502 if (speed == SPEED_100)
503 ctl |= BMCR_SPEED100;
504 else if (speed == SPEED_1000)
505 ctl |= BMCR_SPEED1000;
508 ctl &= ~(BMCR_FULLDPLX | BMCR_ANENABLE);
509 if (duplex == DUPLEX_FULL)
510 ctl |= BMCR_FULLDPLX;
512 if (ctl & BMCR_SPEED1000) /* auto-negotiation required for GigE */
513 ctl |= BMCR_ANENABLE;
514 return mdio_write(phy, 0, MII_BMCR, ctl);
517 int t3_phy_lasi_intr_enable(struct cphy *phy)
519 return mdio_write(phy, MDIO_DEV_PMA_PMD, LASI_CTRL, 1);
522 int t3_phy_lasi_intr_disable(struct cphy *phy)
524 return mdio_write(phy, MDIO_DEV_PMA_PMD, LASI_CTRL, 0);
527 int t3_phy_lasi_intr_clear(struct cphy *phy)
531 return mdio_read(phy, MDIO_DEV_PMA_PMD, LASI_STAT, &val);
534 int t3_phy_lasi_intr_handler(struct cphy *phy)
537 int err = mdio_read(phy, MDIO_DEV_PMA_PMD, LASI_STAT, &status);
541 return (status & 1) ? cphy_cause_link_change : 0;
544 static struct adapter_info t3_adap_info[] = {
546 F_GPIO2_OEN | F_GPIO4_OEN |
547 F_GPIO2_OUT_VAL | F_GPIO4_OUT_VAL, { S_GPIO3, S_GPIO5 }, 0,
548 &mi1_mdio_ops, "Chelsio PE9000" },
550 F_GPIO2_OEN | F_GPIO4_OEN |
551 F_GPIO2_OUT_VAL | F_GPIO4_OUT_VAL, { S_GPIO3, S_GPIO5 }, 0,
552 &mi1_mdio_ops, "Chelsio T302" },
554 F_GPIO1_OEN | F_GPIO6_OEN | F_GPIO7_OEN | F_GPIO10_OEN |
555 F_GPIO11_OEN | F_GPIO1_OUT_VAL | F_GPIO6_OUT_VAL | F_GPIO10_OUT_VAL,
556 { 0 }, SUPPORTED_10000baseT_Full | SUPPORTED_AUI,
557 &mi1_mdio_ext_ops, "Chelsio T310" },
559 F_GPIO1_OEN | F_GPIO2_OEN | F_GPIO4_OEN | F_GPIO5_OEN | F_GPIO6_OEN |
560 F_GPIO7_OEN | F_GPIO10_OEN | F_GPIO11_OEN | F_GPIO1_OUT_VAL |
561 F_GPIO5_OUT_VAL | F_GPIO6_OUT_VAL | F_GPIO10_OUT_VAL,
562 { S_GPIO9, S_GPIO3 }, SUPPORTED_10000baseT_Full | SUPPORTED_AUI,
563 &mi1_mdio_ext_ops, "Chelsio T320" },
565 F_GPIO5_OEN | F_GPIO6_OEN | F_GPIO7_OEN | F_GPIO5_OUT_VAL |
566 F_GPIO6_OUT_VAL | F_GPIO7_OUT_VAL,
567 { S_GPIO1, S_GPIO2, S_GPIO3, S_GPIO4 }, SUPPORTED_AUI,
568 &mi1_mdio_ops, "Chelsio T304" },
571 F_GPIO1_OEN | F_GPIO2_OEN | F_GPIO4_OEN | F_GPIO6_OEN | F_GPIO7_OEN |
572 F_GPIO10_OEN | F_GPIO1_OUT_VAL | F_GPIO6_OUT_VAL | F_GPIO10_OUT_VAL,
573 { S_GPIO9 }, SUPPORTED_10000baseT_Full | SUPPORTED_AUI,
574 &mi1_mdio_ext_ops, "Chelsio T310" },
576 F_GPIO1_OEN | F_GPIO6_OEN | F_GPIO7_OEN |
577 F_GPIO1_OUT_VAL | F_GPIO6_OUT_VAL,
578 { S_GPIO9 }, SUPPORTED_10000baseT_Full | SUPPORTED_AUI,
579 &mi1_mdio_ext_ops, "Chelsio N320E-G2" },
583 * Return the adapter_info structure with a given index. Out-of-range indices
586 const struct adapter_info *t3_get_adapter_info(unsigned int id)
588 return id < ARRAY_SIZE(t3_adap_info) ? &t3_adap_info[id] : NULL;
591 struct port_type_info {
592 int (*phy_prep)(pinfo_t *pinfo, int phy_addr,
593 const struct mdio_ops *ops);
596 static struct port_type_info port_types[] = {
598 { t3_ael1002_phy_prep },
599 { t3_vsc8211_phy_prep },
600 { t3_mv88e1xxx_phy_prep },
601 { t3_xaui_direct_phy_prep },
602 { t3_ael2005_phy_prep },
603 { t3_qt2045_phy_prep },
604 { t3_ael1006_phy_prep },
605 { t3_tn1010_phy_prep },
606 { t3_aq100x_phy_prep },
607 { t3_ael2020_phy_prep },
610 #define VPD_ENTRY(name, len) \
611 u8 name##_kword[2]; u8 name##_len; u8 name##_data[len]
614 * Partial EEPROM Vital Product Data structure. Includes only the ID and
623 VPD_ENTRY(pn, 16); /* part number */
624 VPD_ENTRY(ec, ECNUM_LEN); /* EC level */
625 VPD_ENTRY(sn, SERNUM_LEN); /* serial number */
626 VPD_ENTRY(na, 12); /* MAC address base */
627 VPD_ENTRY(cclk, 6); /* core clock */
628 VPD_ENTRY(mclk, 6); /* mem clock */
629 VPD_ENTRY(uclk, 6); /* uP clk */
630 VPD_ENTRY(mdc, 6); /* MDIO clk */
631 VPD_ENTRY(mt, 2); /* mem timing */
632 VPD_ENTRY(xaui0cfg, 6); /* XAUI0 config */
633 VPD_ENTRY(xaui1cfg, 6); /* XAUI1 config */
634 VPD_ENTRY(port0, 2); /* PHY0 complex */
635 VPD_ENTRY(port1, 2); /* PHY1 complex */
636 VPD_ENTRY(port2, 2); /* PHY2 complex */
637 VPD_ENTRY(port3, 2); /* PHY3 complex */
638 VPD_ENTRY(rv, 1); /* csum */
639 u32 pad; /* for multiple-of-4 sizing and alignment */
642 #define EEPROM_MAX_POLL 40
643 #define EEPROM_STAT_ADDR 0x4000
644 #define VPD_BASE 0xc00
647 * t3_seeprom_read - read a VPD EEPROM location
648 * @adapter: adapter to read
649 * @addr: EEPROM address
650 * @data: where to store the read data
652 * Read a 32-bit word from a location in VPD EEPROM using the card's PCI
653 * VPD ROM capability. A zero is written to the flag bit when the
654 * addres is written to the control register. The hardware device will
655 * set the flag to 1 when 4 bytes have been read into the data register.
657 int t3_seeprom_read(adapter_t *adapter, u32 addr, u32 *data)
660 int attempts = EEPROM_MAX_POLL;
661 unsigned int base = adapter->params.pci.vpd_cap_addr;
663 if ((addr >= EEPROMSIZE && addr != EEPROM_STAT_ADDR) || (addr & 3))
666 t3_os_pci_write_config_2(adapter, base + PCI_VPD_ADDR, (u16)addr);
669 t3_os_pci_read_config_2(adapter, base + PCI_VPD_ADDR, &val);
670 } while (!(val & PCI_VPD_ADDR_F) && --attempts);
672 if (!(val & PCI_VPD_ADDR_F)) {
673 CH_ERR(adapter, "reading EEPROM address 0x%x failed\n", addr);
676 t3_os_pci_read_config_4(adapter, base + PCI_VPD_DATA, data);
677 *data = le32_to_cpu(*data);
682 * t3_seeprom_write - write a VPD EEPROM location
683 * @adapter: adapter to write
684 * @addr: EEPROM address
685 * @data: value to write
687 * Write a 32-bit word to a location in VPD EEPROM using the card's PCI
688 * VPD ROM capability.
690 int t3_seeprom_write(adapter_t *adapter, u32 addr, u32 data)
693 int attempts = EEPROM_MAX_POLL;
694 unsigned int base = adapter->params.pci.vpd_cap_addr;
696 if ((addr >= EEPROMSIZE && addr != EEPROM_STAT_ADDR) || (addr & 3))
699 t3_os_pci_write_config_4(adapter, base + PCI_VPD_DATA,
701 t3_os_pci_write_config_2(adapter, base + PCI_VPD_ADDR,
702 (u16)addr | PCI_VPD_ADDR_F);
705 t3_os_pci_read_config_2(adapter, base + PCI_VPD_ADDR, &val);
706 } while ((val & PCI_VPD_ADDR_F) && --attempts);
708 if (val & PCI_VPD_ADDR_F) {
709 CH_ERR(adapter, "write to EEPROM address 0x%x failed\n", addr);
716 * t3_seeprom_wp - enable/disable EEPROM write protection
717 * @adapter: the adapter
718 * @enable: 1 to enable write protection, 0 to disable it
720 * Enables or disables write protection on the serial EEPROM.
722 int t3_seeprom_wp(adapter_t *adapter, int enable)
724 return t3_seeprom_write(adapter, EEPROM_STAT_ADDR, enable ? 0xc : 0);
728 * Convert a character holding a hex digit to a number.
730 static unsigned int hex2int(unsigned char c)
732 return isdigit(c) ? c - '0' : toupper(c) - 'A' + 10;
736 * get_desc_len - get the length of a vpd descriptor.
737 * @adapter: the adapter
738 * @offset: first byte offset of the vpd descriptor
740 * Retrieves the length of the small/large resource
741 * data type starting at offset.
743 static int get_desc_len(adapter_t *adapter, u32 offset)
745 u32 read_offset, tmp, shift, len = 0;
749 read_offset = offset & 0xfffffffc;
750 shift = offset & 0x03;
752 ret = t3_seeprom_read(adapter, read_offset, &tmp);
756 *((u32 *)buf) = cpu_to_le32(tmp);
760 ret = t3_seeprom_read(adapter, read_offset + 4, &tmp);
764 *((u32 *)(&buf[4])) = cpu_to_le32(tmp);
765 len = (buf[shift + 1] & 0xff) +
766 ((buf[shift+2] << 8) & 0xff00) + 3;
768 len = (tag & 0x07) + 1;
774 * is_end_tag - Check if a vpd tag is the end tag.
775 * @adapter: the adapter
776 * @offset: first byte offset of the tag
778 * Checks if the tag located at offset is the end tag.
780 static int is_end_tag(adapter_t * adapter, u32 offset)
782 u32 read_offset, shift, ret, tmp;
785 read_offset = offset & 0xfffffffc;
786 shift = offset & 0x03;
788 ret = t3_seeprom_read(adapter, read_offset, &tmp);
791 *((u32 *)buf) = cpu_to_le32(tmp);
793 if (buf[shift] == 0x78)
800 * t3_get_vpd_len - computes the length of a vpd structure
801 * @adapter: the adapter
802 * @vpd: contains the offset of first byte of vpd
804 * Computes the lentgh of the vpd structure starting at vpd->offset.
807 int t3_get_vpd_len(adapter_t * adapter, struct generic_vpd *vpd)
812 offset = vpd->offset;
814 while (offset < (vpd->offset + MAX_VPD_BYTES)) {
815 ret = is_end_tag(adapter, offset);
821 inc = get_desc_len(adapter, offset);
831 * t3_read_vpd - reads the stream of bytes containing a vpd structure
832 * @adapter: the adapter
833 * @vpd: contains a buffer that would hold the stream of bytes
835 * Reads the vpd structure starting at vpd->offset into vpd->data,
836 * the length of the byte stream to read is vpd->len.
839 int t3_read_vpd(adapter_t *adapter, struct generic_vpd *vpd)
843 for (i = 0; i < vpd->len; i += 4) {
844 ret = t3_seeprom_read(adapter, vpd->offset + i,
845 (u32 *) &(vpd->data[i]));
855 * get_vpd_params - read VPD parameters from VPD EEPROM
856 * @adapter: adapter to read
857 * @p: where to store the parameters
859 * Reads card parameters stored in VPD EEPROM.
861 static int get_vpd_params(adapter_t *adapter, struct vpd_params *p)
867 * Card information is normally at VPD_BASE but some early cards had
870 ret = t3_seeprom_read(adapter, VPD_BASE, (u32 *)&vpd);
873 addr = vpd.id_tag == 0x82 ? VPD_BASE : 0;
875 for (i = 0; i < sizeof(vpd); i += 4) {
876 ret = t3_seeprom_read(adapter, addr + i,
877 (u32 *)((u8 *)&vpd + i));
882 p->cclk = simple_strtoul(vpd.cclk_data, NULL, 10);
883 p->mclk = simple_strtoul(vpd.mclk_data, NULL, 10);
884 p->uclk = simple_strtoul(vpd.uclk_data, NULL, 10);
885 p->mdc = simple_strtoul(vpd.mdc_data, NULL, 10);
886 p->mem_timing = simple_strtoul(vpd.mt_data, NULL, 10);
887 memcpy(p->sn, vpd.sn_data, SERNUM_LEN);
888 memcpy(p->ec, vpd.ec_data, ECNUM_LEN);
890 /* Old eeproms didn't have port information */
891 if (adapter->params.rev == 0 && !vpd.port0_data[0]) {
892 p->port_type[0] = uses_xaui(adapter) ? 1 : 2;
893 p->port_type[1] = uses_xaui(adapter) ? 6 : 2;
895 p->port_type[0] = (u8)hex2int(vpd.port0_data[0]);
896 p->port_type[1] = (u8)hex2int(vpd.port1_data[0]);
897 p->port_type[2] = (u8)hex2int(vpd.port2_data[0]);
898 p->port_type[3] = (u8)hex2int(vpd.port3_data[0]);
899 p->xauicfg[0] = simple_strtoul(vpd.xaui0cfg_data, NULL, 16);
900 p->xauicfg[1] = simple_strtoul(vpd.xaui1cfg_data, NULL, 16);
903 for (i = 0; i < 6; i++)
904 p->eth_base[i] = hex2int(vpd.na_data[2 * i]) * 16 +
905 hex2int(vpd.na_data[2 * i + 1]);
909 /* BIOS boot header */
910 typedef struct boot_header_s {
911 u8 signature[2]; /* signature */
912 u8 length; /* image length (include header) */
913 u8 offset[4]; /* initialization vector */
914 u8 reserved[19]; /* reserved */
915 u8 exheader[2]; /* offset to expansion header */
918 /* serial flash and firmware constants */
920 SF_ATTEMPTS = 5, /* max retries for SF1 operations */
921 SF_SEC_SIZE = 64 * 1024, /* serial flash sector size */
922 SF_SIZE = SF_SEC_SIZE * 8, /* serial flash size */
924 /* flash command opcodes */
925 SF_PROG_PAGE = 2, /* program page */
926 SF_WR_DISABLE = 4, /* disable writes */
927 SF_RD_STATUS = 5, /* read status register */
928 SF_WR_ENABLE = 6, /* enable writes */
929 SF_RD_DATA_FAST = 0xb, /* read flash */
930 SF_ERASE_SECTOR = 0xd8, /* erase sector */
932 FW_FLASH_BOOT_ADDR = 0x70000, /* start address of FW in flash */
933 FW_VERS_ADDR = 0x7fffc, /* flash address holding FW version */
934 FW_VERS_ADDR_PRE8 = 0x77ffc,/* flash address holding FW version pre8 */
935 FW_MIN_SIZE = 8, /* at least version and csum */
936 FW_MAX_SIZE = FW_VERS_ADDR - FW_FLASH_BOOT_ADDR,
937 FW_MAX_SIZE_PRE8 = FW_VERS_ADDR_PRE8 - FW_FLASH_BOOT_ADDR,
939 BOOT_FLASH_BOOT_ADDR = 0x0,/* start address of boot image in flash */
940 BOOT_SIGNATURE = 0xaa55, /* signature of BIOS boot ROM */
941 BOOT_SIZE_INC = 512, /* image size measured in 512B chunks */
942 BOOT_MIN_SIZE = sizeof(boot_header_t), /* at least basic header */
943 BOOT_MAX_SIZE = 1024*BOOT_SIZE_INC /* 1 byte * length increment */
947 * sf1_read - read data from the serial flash
948 * @adapter: the adapter
949 * @byte_cnt: number of bytes to read
950 * @cont: whether another operation will be chained
951 * @valp: where to store the read data
953 * Reads up to 4 bytes of data from the serial flash. The location of
954 * the read needs to be specified prior to calling this by issuing the
955 * appropriate commands to the serial flash.
957 static int sf1_read(adapter_t *adapter, unsigned int byte_cnt, int cont,
962 if (!byte_cnt || byte_cnt > 4)
964 if (t3_read_reg(adapter, A_SF_OP) & F_BUSY)
966 t3_write_reg(adapter, A_SF_OP, V_CONT(cont) | V_BYTECNT(byte_cnt - 1));
967 ret = t3_wait_op_done(adapter, A_SF_OP, F_BUSY, 0, SF_ATTEMPTS, 10);
969 *valp = t3_read_reg(adapter, A_SF_DATA);
974 * sf1_write - write data to the serial flash
975 * @adapter: the adapter
976 * @byte_cnt: number of bytes to write
977 * @cont: whether another operation will be chained
978 * @val: value to write
980 * Writes up to 4 bytes of data to the serial flash. The location of
981 * the write needs to be specified prior to calling this by issuing the
982 * appropriate commands to the serial flash.
984 static int sf1_write(adapter_t *adapter, unsigned int byte_cnt, int cont,
987 if (!byte_cnt || byte_cnt > 4)
989 if (t3_read_reg(adapter, A_SF_OP) & F_BUSY)
991 t3_write_reg(adapter, A_SF_DATA, val);
992 t3_write_reg(adapter, A_SF_OP,
993 V_CONT(cont) | V_BYTECNT(byte_cnt - 1) | V_OP(1));
994 return t3_wait_op_done(adapter, A_SF_OP, F_BUSY, 0, SF_ATTEMPTS, 10);
998 * flash_wait_op - wait for a flash operation to complete
999 * @adapter: the adapter
1000 * @attempts: max number of polls of the status register
1001 * @delay: delay between polls in ms
1003 * Wait for a flash operation to complete by polling the status register.
1005 static int flash_wait_op(adapter_t *adapter, int attempts, int delay)
1011 if ((ret = sf1_write(adapter, 1, 1, SF_RD_STATUS)) != 0 ||
1012 (ret = sf1_read(adapter, 1, 0, &status)) != 0)
1016 if (--attempts == 0)
1024 * t3_read_flash - read words from serial flash
1025 * @adapter: the adapter
1026 * @addr: the start address for the read
1027 * @nwords: how many 32-bit words to read
1028 * @data: where to store the read data
1029 * @byte_oriented: whether to store data as bytes or as words
1031 * Read the specified number of 32-bit words from the serial flash.
1032 * If @byte_oriented is set the read data is stored as a byte array
1033 * (i.e., big-endian), otherwise as 32-bit words in the platform's
1034 * natural endianess.
1036 int t3_read_flash(adapter_t *adapter, unsigned int addr, unsigned int nwords,
1037 u32 *data, int byte_oriented)
1041 if (addr + nwords * sizeof(u32) > SF_SIZE || (addr & 3))
1044 addr = swab32(addr) | SF_RD_DATA_FAST;
1046 if ((ret = sf1_write(adapter, 4, 1, addr)) != 0 ||
1047 (ret = sf1_read(adapter, 1, 1, data)) != 0)
1050 for ( ; nwords; nwords--, data++) {
1051 ret = sf1_read(adapter, 4, nwords > 1, data);
1055 *data = htonl(*data);
1061 * t3_write_flash - write up to a page of data to the serial flash
1062 * @adapter: the adapter
1063 * @addr: the start address to write
1064 * @n: length of data to write
1065 * @data: the data to write
1066 * @byte_oriented: whether to store data as bytes or as words
1068 * Writes up to a page of data (256 bytes) to the serial flash starting
1069 * at the given address.
1070 * If @byte_oriented is set the write data is stored as a 32-bit
1071 * big-endian array, otherwise in the processor's native endianess.
1074 static int t3_write_flash(adapter_t *adapter, unsigned int addr,
1075 unsigned int n, const u8 *data,
1080 unsigned int c, left, val, offset = addr & 0xff;
1082 if (addr + n > SF_SIZE || offset + n > 256)
1085 val = swab32(addr) | SF_PROG_PAGE;
1087 if ((ret = sf1_write(adapter, 1, 0, SF_WR_ENABLE)) != 0 ||
1088 (ret = sf1_write(adapter, 4, 1, val)) != 0)
1091 for (left = n; left; left -= c) {
1093 val = *(const u32*)data;
1098 ret = sf1_write(adapter, c, c != left, val);
1102 if ((ret = flash_wait_op(adapter, 5, 1)) != 0)
1105 /* Read the page to verify the write succeeded */
1106 ret = t3_read_flash(adapter, addr & ~0xff, ARRAY_SIZE(buf), buf,
1111 if (memcmp(data - n, (u8 *)buf + offset, n))
1117 * t3_get_tp_version - read the tp sram version
1118 * @adapter: the adapter
1119 * @vers: where to place the version
1121 * Reads the protocol sram version from sram.
1123 int t3_get_tp_version(adapter_t *adapter, u32 *vers)
1127 /* Get version loaded in SRAM */
1128 t3_write_reg(adapter, A_TP_EMBED_OP_FIELD0, 0);
1129 ret = t3_wait_op_done(adapter, A_TP_EMBED_OP_FIELD0,
1134 *vers = t3_read_reg(adapter, A_TP_EMBED_OP_FIELD1);
1140 * t3_check_tpsram_version - read the tp sram version
1141 * @adapter: the adapter
1144 int t3_check_tpsram_version(adapter_t *adapter)
1148 unsigned int major, minor;
1150 if (adapter->params.rev == T3_REV_A)
1154 ret = t3_get_tp_version(adapter, &vers);
1158 vers = t3_read_reg(adapter, A_TP_EMBED_OP_FIELD1);
1160 major = G_TP_VERSION_MAJOR(vers);
1161 minor = G_TP_VERSION_MINOR(vers);
1163 if (major == TP_VERSION_MAJOR && minor == TP_VERSION_MINOR)
1166 CH_ERR(adapter, "found wrong TP version (%u.%u), "
1167 "driver compiled for version %d.%d\n", major, minor,
1168 TP_VERSION_MAJOR, TP_VERSION_MINOR);
1174 * t3_check_tpsram - check if provided protocol SRAM
1175 * is compatible with this driver
1176 * @adapter: the adapter
1177 * @tp_sram: the firmware image to write
1180 * Checks if an adapter's tp sram is compatible with the driver.
1181 * Returns 0 if the versions are compatible, a negative error otherwise.
1183 int t3_check_tpsram(adapter_t *adapter, const u8 *tp_sram, unsigned int size)
1187 const u32 *p = (const u32 *)tp_sram;
1189 /* Verify checksum */
1190 for (csum = 0, i = 0; i < size / sizeof(csum); i++)
1191 csum += ntohl(p[i]);
1192 if (csum != 0xffffffff) {
1193 CH_ERR(adapter, "corrupted protocol SRAM image, checksum %u\n",
1201 enum fw_version_type {
1207 * t3_get_fw_version - read the firmware version
1208 * @adapter: the adapter
1209 * @vers: where to place the version
1211 * Reads the FW version from flash. Note that we had to move the version
1212 * due to FW size. If we don't find a valid FW version in the new location
1213 * we fall back and read the old location.
1215 int t3_get_fw_version(adapter_t *adapter, u32 *vers)
1217 int ret = t3_read_flash(adapter, FW_VERS_ADDR, 1, vers, 0);
1218 if (!ret && *vers != 0xffffffff)
1221 return t3_read_flash(adapter, FW_VERS_ADDR_PRE8, 1, vers, 0);
1225 * t3_check_fw_version - check if the FW is compatible with this driver
1226 * @adapter: the adapter
1228 * Checks if an adapter's FW is compatible with the driver. Returns 0
1229 * if the versions are compatible, a negative error otherwise.
1231 int t3_check_fw_version(adapter_t *adapter)
1235 unsigned int type, major, minor;
1237 ret = t3_get_fw_version(adapter, &vers);
1241 type = G_FW_VERSION_TYPE(vers);
1242 major = G_FW_VERSION_MAJOR(vers);
1243 minor = G_FW_VERSION_MINOR(vers);
1245 if (type == FW_VERSION_T3 && major == FW_VERSION_MAJOR &&
1246 minor == FW_VERSION_MINOR)
1249 else if (major != FW_VERSION_MAJOR || minor < FW_VERSION_MINOR)
1250 CH_WARN(adapter, "found old FW minor version(%u.%u), "
1251 "driver compiled for version %u.%u\n", major, minor,
1252 FW_VERSION_MAJOR, FW_VERSION_MINOR);
1254 CH_WARN(adapter, "found newer FW version(%u.%u), "
1255 "driver compiled for version %u.%u\n", major, minor,
1256 FW_VERSION_MAJOR, FW_VERSION_MINOR);
1263 * t3_flash_erase_sectors - erase a range of flash sectors
1264 * @adapter: the adapter
1265 * @start: the first sector to erase
1266 * @end: the last sector to erase
1268 * Erases the sectors in the given range.
1270 static int t3_flash_erase_sectors(adapter_t *adapter, int start, int end)
1272 while (start <= end) {
1275 if ((ret = sf1_write(adapter, 1, 0, SF_WR_ENABLE)) != 0 ||
1276 (ret = sf1_write(adapter, 4, 0,
1277 SF_ERASE_SECTOR | (start << 8))) != 0 ||
1278 (ret = flash_wait_op(adapter, 5, 500)) != 0)
1286 * t3_load_fw - download firmware
1287 * @adapter: the adapter
1288 * @fw_data: the firmware image to write
1291 * Write the supplied firmware image to the card's serial flash.
1292 * The FW image has the following sections: @size - 8 bytes of code and
1293 * data, followed by 4 bytes of FW version, followed by the 32-bit
1294 * 1's complement checksum of the whole image.
1296 int t3_load_fw(adapter_t *adapter, const u8 *fw_data, unsigned int size)
1298 u32 version, csum, fw_version_addr;
1300 const u32 *p = (const u32 *)fw_data;
1301 int ret, addr, fw_sector = FW_FLASH_BOOT_ADDR >> 16;
1303 if ((size & 3) || size < FW_MIN_SIZE)
1305 if (size - 8 > FW_MAX_SIZE)
1308 version = ntohl(*(const u32 *)(fw_data + size - 8));
1309 if (G_FW_VERSION_MAJOR(version) < 8) {
1311 fw_version_addr = FW_VERS_ADDR_PRE8;
1313 if (size - 8 > FW_MAX_SIZE_PRE8)
1316 fw_version_addr = FW_VERS_ADDR;
1318 for (csum = 0, i = 0; i < size / sizeof(csum); i++)
1319 csum += ntohl(p[i]);
1320 if (csum != 0xffffffff) {
1321 CH_ERR(adapter, "corrupted firmware image, checksum %u\n",
1326 ret = t3_flash_erase_sectors(adapter, fw_sector, fw_sector);
1330 size -= 8; /* trim off version and checksum */
1331 for (addr = FW_FLASH_BOOT_ADDR; size; ) {
1332 unsigned int chunk_size = min(size, 256U);
1334 ret = t3_write_flash(adapter, addr, chunk_size, fw_data, 1);
1339 fw_data += chunk_size;
1343 ret = t3_write_flash(adapter, fw_version_addr, 4, fw_data, 1);
1346 CH_ERR(adapter, "firmware download failed, error %d\n", ret);
1351 * t3_load_boot - download boot flash
1352 * @adapter: the adapter
1353 * @boot_data: the boot image to write
1356 * Write the supplied boot image to the card's serial flash.
1357 * The boot image has the following sections: a 28-byte header and the
1360 int t3_load_boot(adapter_t *adapter, u8 *boot_data, unsigned int size)
1362 boot_header_t *header = (boot_header_t *)boot_data;
1365 unsigned int boot_sector = BOOT_FLASH_BOOT_ADDR >> 16;
1366 unsigned int boot_end = (BOOT_FLASH_BOOT_ADDR + size - 1) >> 16;
1369 * Perform some primitive sanity testing to avoid accidentally
1370 * writing garbage over the boot sectors. We ought to check for
1371 * more but it's not worth it for now ...
1373 if (size < BOOT_MIN_SIZE || size > BOOT_MAX_SIZE) {
1374 CH_ERR(adapter, "boot image too small/large\n");
1377 if (le16_to_cpu(*(u16*)header->signature) != BOOT_SIGNATURE) {
1378 CH_ERR(adapter, "boot image missing signature\n");
1381 if (header->length * BOOT_SIZE_INC != size) {
1382 CH_ERR(adapter, "boot image header length != image length\n");
1386 ret = t3_flash_erase_sectors(adapter, boot_sector, boot_end);
1390 for (addr = BOOT_FLASH_BOOT_ADDR; size; ) {
1391 unsigned int chunk_size = min(size, 256U);
1393 ret = t3_write_flash(adapter, addr, chunk_size, boot_data, 0);
1398 boot_data += chunk_size;
1404 CH_ERR(adapter, "boot image download failed, error %d\n", ret);
1408 #define CIM_CTL_BASE 0x2000
1411 * t3_cim_ctl_blk_read - read a block from CIM control region
1412 * @adap: the adapter
1413 * @addr: the start address within the CIM control region
1414 * @n: number of words to read
1415 * @valp: where to store the result
1417 * Reads a block of 4-byte words from the CIM control region.
1419 int t3_cim_ctl_blk_read(adapter_t *adap, unsigned int addr, unsigned int n,
1424 if (t3_read_reg(adap, A_CIM_HOST_ACC_CTRL) & F_HOSTBUSY)
1427 for ( ; !ret && n--; addr += 4) {
1428 t3_write_reg(adap, A_CIM_HOST_ACC_CTRL, CIM_CTL_BASE + addr);
1429 ret = t3_wait_op_done(adap, A_CIM_HOST_ACC_CTRL, F_HOSTBUSY,
1432 *valp++ = t3_read_reg(adap, A_CIM_HOST_ACC_DATA);
1437 static void t3_gate_rx_traffic(struct cmac *mac, u32 *rx_cfg,
1438 u32 *rx_hash_high, u32 *rx_hash_low)
1440 /* stop Rx unicast traffic */
1441 t3_mac_disable_exact_filters(mac);
1443 /* stop broadcast, multicast, promiscuous mode traffic */
1444 *rx_cfg = t3_read_reg(mac->adapter, A_XGM_RX_CFG + mac->offset);
1445 t3_set_reg_field(mac->adapter, A_XGM_RX_CFG + mac->offset,
1446 F_ENHASHMCAST | F_DISBCAST | F_COPYALLFRAMES,
1449 *rx_hash_high = t3_read_reg(mac->adapter, A_XGM_RX_HASH_HIGH +
1451 t3_write_reg(mac->adapter, A_XGM_RX_HASH_HIGH + mac->offset, 0);
1453 *rx_hash_low = t3_read_reg(mac->adapter, A_XGM_RX_HASH_LOW +
1455 t3_write_reg(mac->adapter, A_XGM_RX_HASH_LOW + mac->offset, 0);
1457 /* Leave time to drain max RX fifo */
1461 static void t3_open_rx_traffic(struct cmac *mac, u32 rx_cfg,
1462 u32 rx_hash_high, u32 rx_hash_low)
1464 t3_mac_enable_exact_filters(mac);
1465 t3_set_reg_field(mac->adapter, A_XGM_RX_CFG + mac->offset,
1466 F_ENHASHMCAST | F_DISBCAST | F_COPYALLFRAMES,
1468 t3_write_reg(mac->adapter, A_XGM_RX_HASH_HIGH + mac->offset,
1470 t3_write_reg(mac->adapter, A_XGM_RX_HASH_LOW + mac->offset,
1474 static int t3_detect_link_fault(adapter_t *adapter, int port_id)
1476 struct port_info *pi = adap2pinfo(adapter, port_id);
1477 struct cmac *mac = &pi->mac;
1478 uint32_t rx_cfg, rx_hash_high, rx_hash_low;
1482 t3_gate_rx_traffic(mac, &rx_cfg, &rx_hash_high, &rx_hash_low);
1483 t3_write_reg(adapter, A_XGM_RX_CTRL + mac->offset, 0);
1485 /* clear status and make sure intr is enabled */
1486 (void) t3_read_reg(adapter, A_XGM_INT_STATUS + mac->offset);
1487 t3_xgm_intr_enable(adapter, port_id);
1490 t3_write_reg(adapter, A_XGM_RX_CTRL + mac->offset, F_RXEN);
1491 t3_open_rx_traffic(mac, rx_cfg, rx_hash_high, rx_hash_low);
1493 link_fault = t3_read_reg(adapter, A_XGM_INT_STATUS + mac->offset);
1494 return (link_fault & F_LINKFAULTCHANGE ? 1 : 0);
1497 static void t3_clear_faults(adapter_t *adapter, int port_id)
1499 struct port_info *pi = adap2pinfo(adapter, port_id);
1500 struct cmac *mac = &pi->mac;
1502 if (adapter->params.nports <= 2) {
1503 t3_xgm_intr_disable(adapter, pi->port_id);
1504 t3_read_reg(adapter, A_XGM_INT_STATUS + mac->offset);
1505 t3_write_reg(adapter, A_XGM_INT_CAUSE + mac->offset, F_XGM_INT);
1506 t3_set_reg_field(adapter, A_XGM_INT_ENABLE + mac->offset,
1507 F_XGM_INT, F_XGM_INT);
1508 t3_xgm_intr_enable(adapter, pi->port_id);
1513 * t3_link_changed - handle interface link changes
1514 * @adapter: the adapter
1515 * @port_id: the port index that changed link state
1517 * Called when a port's link settings change to propagate the new values
1518 * to the associated PHY and MAC. After performing the common tasks it
1519 * invokes an OS-specific handler.
1521 void t3_link_changed(adapter_t *adapter, int port_id)
1523 int link_ok, speed, duplex, fc, link_fault, link_state;
1524 struct port_info *pi = adap2pinfo(adapter, port_id);
1525 struct cphy *phy = &pi->phy;
1526 struct cmac *mac = &pi->mac;
1527 struct link_config *lc = &pi->link_config;
1529 link_ok = lc->link_ok;
1531 duplex = lc->duplex;
1535 phy->ops->get_link_status(phy, &link_state, &speed, &duplex, &fc);
1536 link_ok = (link_state == PHY_LINK_UP);
1537 if (link_state != PHY_LINK_PARTIAL)
1539 else if (++phy->rst == 3) {
1540 phy->ops->reset(phy, 0);
1545 pi->link_fault = LF_NO;
1547 if (lc->requested_fc & PAUSE_AUTONEG)
1548 fc &= lc->requested_fc;
1550 fc = lc->requested_fc & (PAUSE_RX | PAUSE_TX);
1552 /* Update mac speed before checking for link fault. */
1553 if (link_ok && speed >= 0 && lc->autoneg == AUTONEG_ENABLE &&
1554 (speed != lc->speed || duplex != lc->duplex || fc != lc->fc))
1555 t3_mac_set_speed_duplex_fc(mac, speed, duplex, fc);
1558 * Check for link faults if any of these is true:
1559 * a) A link fault is suspected, and PHY says link ok
1560 * b) PHY link transitioned from down -> up
1562 if (adapter->params.nports <= 2 &&
1563 ((pi->link_fault && link_ok) || (!lc->link_ok && link_ok))) {
1565 link_fault = t3_detect_link_fault(adapter, port_id);
1567 if (pi->link_fault != LF_YES) {
1568 mac->stats.link_faults++;
1569 pi->link_fault = LF_YES;
1572 if (uses_xaui(adapter)) {
1573 if (adapter->params.rev >= T3_REV_C)
1574 t3c_pcs_force_los(mac);
1579 /* Don't report link up */
1582 /* clear faults here if this was a false alarm. */
1583 if (pi->link_fault == LF_MAYBE &&
1584 link_ok && lc->link_ok)
1585 t3_clear_faults(adapter, port_id);
1587 pi->link_fault = LF_NO;
1591 if (link_ok == lc->link_ok && speed == lc->speed &&
1592 duplex == lc->duplex && fc == lc->fc)
1593 return; /* nothing changed */
1595 lc->link_ok = (unsigned char)link_ok;
1596 lc->speed = speed < 0 ? SPEED_INVALID : speed;
1597 lc->duplex = duplex < 0 ? DUPLEX_INVALID : duplex;
1602 /* down -> up, or up -> up with changed settings */
1604 if (adapter->params.rev > 0 && uses_xaui(adapter)) {
1606 if (adapter->params.rev >= T3_REV_C)
1607 t3c_pcs_force_los(mac);
1611 t3_write_reg(adapter, A_XGM_XAUI_ACT_CTRL + mac->offset,
1612 F_TXACTENABLE | F_RXEN);
1615 /* disable TX FIFO drain */
1616 t3_set_reg_field(adapter, A_XGM_TXFIFO_CFG + mac->offset,
1619 t3_mac_enable(mac, MAC_DIRECTION_TX | MAC_DIRECTION_RX);
1620 t3_set_reg_field(adapter, A_XGM_STAT_CTRL + mac->offset,
1622 t3_clear_faults(adapter, port_id);
1628 if (adapter->params.rev > 0 && uses_xaui(adapter)) {
1629 t3_write_reg(adapter,
1630 A_XGM_XAUI_ACT_CTRL + mac->offset, 0);
1633 t3_xgm_intr_disable(adapter, pi->port_id);
1634 if (adapter->params.nports <= 2) {
1635 t3_set_reg_field(adapter,
1636 A_XGM_INT_ENABLE + mac->offset,
1639 t3_mac_disable(mac, MAC_DIRECTION_RX);
1642 * Make sure Tx FIFO continues to drain, even as rxen is
1643 * left high to help detect and indicate remote faults.
1645 t3_set_reg_field(adapter,
1646 A_XGM_TXFIFO_CFG + mac->offset, 0, F_ENDROPPKT);
1647 t3_write_reg(adapter, A_XGM_RX_CTRL + mac->offset, 0);
1648 t3_write_reg(adapter,
1649 A_XGM_TX_CTRL + mac->offset, F_TXEN);
1650 t3_write_reg(adapter,
1651 A_XGM_RX_CTRL + mac->offset, F_RXEN);
1655 t3_os_link_changed(adapter, port_id, link_ok, speed, duplex, fc,
1661 * t3_link_start - apply link configuration to MAC/PHY
1662 * @phy: the PHY to setup
1663 * @mac: the MAC to setup
1664 * @lc: the requested link configuration
1666 * Set up a port's MAC and PHY according to a desired link configuration.
1667 * - If the PHY can auto-negotiate first decide what to advertise, then
1668 * enable/disable auto-negotiation as desired, and reset.
1669 * - If the PHY does not auto-negotiate just reset it.
1670 * - If auto-negotiation is off set the MAC to the proper speed/duplex/FC,
1671 * otherwise do it later based on the outcome of auto-negotiation.
1673 int t3_link_start(struct cphy *phy, struct cmac *mac, struct link_config *lc)
1675 unsigned int fc = lc->requested_fc & (PAUSE_RX | PAUSE_TX);
1678 if (lc->supported & SUPPORTED_Autoneg) {
1679 lc->advertising &= ~(ADVERTISED_Asym_Pause | ADVERTISED_Pause);
1681 lc->advertising |= ADVERTISED_Asym_Pause;
1683 lc->advertising |= ADVERTISED_Pause;
1686 phy->ops->advertise(phy, lc->advertising);
1688 if (lc->autoneg == AUTONEG_DISABLE) {
1689 lc->speed = lc->requested_speed;
1690 lc->duplex = lc->requested_duplex;
1691 lc->fc = (unsigned char)fc;
1692 t3_mac_set_speed_duplex_fc(mac, lc->speed, lc->duplex,
1694 /* Also disables autoneg */
1695 phy->ops->set_speed_duplex(phy, lc->speed, lc->duplex);
1696 /* PR 5666. Power phy up when doing an ifup */
1697 if (!is_10G(phy->adapter))
1698 phy->ops->power_down(phy, 0);
1700 phy->ops->autoneg_enable(phy);
1702 t3_mac_set_speed_duplex_fc(mac, -1, -1, fc);
1703 lc->fc = (unsigned char)fc;
1704 phy->ops->reset(phy, 0);
1710 * t3_set_vlan_accel - control HW VLAN extraction
1711 * @adapter: the adapter
1712 * @ports: bitmap of adapter ports to operate on
1713 * @on: enable (1) or disable (0) HW VLAN extraction
1715 * Enables or disables HW extraction of VLAN tags for the given port.
1717 void t3_set_vlan_accel(adapter_t *adapter, unsigned int ports, int on)
1719 t3_set_reg_field(adapter, A_TP_OUT_CONFIG,
1720 ports << S_VLANEXTRACTIONENABLE,
1721 on ? (ports << S_VLANEXTRACTIONENABLE) : 0);
1725 unsigned int mask; /* bits to check in interrupt status */
1726 const char *msg; /* message to print or NULL */
1727 short stat_idx; /* stat counter to increment or -1 */
1728 unsigned short fatal; /* whether the condition reported is fatal */
1732 * t3_handle_intr_status - table driven interrupt handler
1733 * @adapter: the adapter that generated the interrupt
1734 * @reg: the interrupt status register to process
1735 * @mask: a mask to apply to the interrupt status
1736 * @acts: table of interrupt actions
1737 * @stats: statistics counters tracking interrupt occurrences
1739 * A table driven interrupt handler that applies a set of masks to an
1740 * interrupt status word and performs the corresponding actions if the
1741 * interrupts described by the mask have occured. The actions include
1742 * optionally printing a warning or alert message, and optionally
1743 * incrementing a stat counter. The table is terminated by an entry
1744 * specifying mask 0. Returns the number of fatal interrupt conditions.
1746 static int t3_handle_intr_status(adapter_t *adapter, unsigned int reg,
1748 const struct intr_info *acts,
1749 unsigned long *stats)
1752 unsigned int status = t3_read_reg(adapter, reg) & mask;
1754 for ( ; acts->mask; ++acts) {
1755 if (!(status & acts->mask)) continue;
1758 CH_ALERT(adapter, "%s (0x%x)\n",
1759 acts->msg, status & acts->mask);
1760 status &= ~acts->mask;
1761 } else if (acts->msg)
1762 CH_WARN(adapter, "%s (0x%x)\n",
1763 acts->msg, status & acts->mask);
1764 if (acts->stat_idx >= 0)
1765 stats[acts->stat_idx]++;
1767 if (status) /* clear processed interrupts */
1768 t3_write_reg(adapter, reg, status);
1772 #define SGE_INTR_MASK (F_RSPQDISABLED | \
1773 F_UC_REQ_FRAMINGERROR | F_R_REQ_FRAMINGERROR | \
1774 F_CPPARITYERROR | F_OCPARITYERROR | F_RCPARITYERROR | \
1775 F_IRPARITYERROR | V_ITPARITYERROR(M_ITPARITYERROR) | \
1776 V_FLPARITYERROR(M_FLPARITYERROR) | F_LODRBPARITYERROR | \
1777 F_HIDRBPARITYERROR | F_LORCQPARITYERROR | \
1779 #define MC5_INTR_MASK (F_PARITYERR | F_ACTRGNFULL | F_UNKNOWNCMD | \
1780 F_REQQPARERR | F_DISPQPARERR | F_DELACTEMPTY | \
1782 #define MC7_INTR_MASK (F_AE | F_UE | F_CE | V_PE(M_PE))
1783 #define XGM_INTR_MASK (V_TXFIFO_PRTY_ERR(M_TXFIFO_PRTY_ERR) | \
1784 V_RXFIFO_PRTY_ERR(M_RXFIFO_PRTY_ERR) | \
1786 #define PCIX_INTR_MASK (F_MSTDETPARERR | F_SIGTARABT | F_RCVTARABT | \
1787 F_RCVMSTABT | F_SIGSYSERR | F_DETPARERR | \
1788 F_SPLCMPDIS | F_UNXSPLCMP | F_RCVSPLCMPERR | \
1789 F_DETCORECCERR | F_DETUNCECCERR | F_PIOPARERR | \
1790 V_WFPARERR(M_WFPARERR) | V_RFPARERR(M_RFPARERR) | \
1791 V_CFPARERR(M_CFPARERR) /* | V_MSIXPARERR(M_MSIXPARERR) */)
1792 #define PCIE_INTR_MASK (F_UNXSPLCPLERRR | F_UNXSPLCPLERRC | F_PCIE_PIOPARERR |\
1793 F_PCIE_WFPARERR | F_PCIE_RFPARERR | F_PCIE_CFPARERR | \
1794 /* V_PCIE_MSIXPARERR(M_PCIE_MSIXPARERR) | */ \
1795 F_RETRYBUFPARERR | F_RETRYLUTPARERR | F_RXPARERR | \
1796 F_TXPARERR | V_BISTERR(M_BISTERR))
1797 #define ULPRX_INTR_MASK (F_PARERRDATA | F_PARERRPCMD | F_ARBPF1PERR | \
1798 F_ARBPF0PERR | F_ARBFPERR | F_PCMDMUXPERR | \
1799 F_DATASELFRAMEERR1 | F_DATASELFRAMEERR0)
1800 #define ULPTX_INTR_MASK 0xfc
1801 #define CPLSW_INTR_MASK (F_CIM_OP_MAP_PERR | F_TP_FRAMING_ERROR | \
1802 F_SGE_FRAMING_ERROR | F_CIM_FRAMING_ERROR | \
1803 F_ZERO_SWITCH_ERROR)
1804 #define CIM_INTR_MASK (F_BLKWRPLINT | F_BLKRDPLINT | F_BLKWRCTLINT | \
1805 F_BLKRDCTLINT | F_BLKWRFLASHINT | F_BLKRDFLASHINT | \
1806 F_SGLWRFLASHINT | F_WRBLKFLASHINT | F_BLKWRBOOTINT | \
1807 F_FLASHRANGEINT | F_SDRAMRANGEINT | F_RSVDSPACEINT | \
1808 F_DRAMPARERR | F_ICACHEPARERR | F_DCACHEPARERR | \
1809 F_OBQSGEPARERR | F_OBQULPHIPARERR | F_OBQULPLOPARERR | \
1810 F_IBQSGELOPARERR | F_IBQSGEHIPARERR | F_IBQULPPARERR | \
1811 F_IBQTPPARERR | F_ITAGPARERR | F_DTAGPARERR)
1812 #define PMTX_INTR_MASK (F_ZERO_C_CMD_ERROR | ICSPI_FRM_ERR | OESPI_FRM_ERR | \
1813 V_ICSPI_PAR_ERROR(M_ICSPI_PAR_ERROR) | \
1814 V_OESPI_PAR_ERROR(M_OESPI_PAR_ERROR))
1815 #define PMRX_INTR_MASK (F_ZERO_E_CMD_ERROR | IESPI_FRM_ERR | OCSPI_FRM_ERR | \
1816 V_IESPI_PAR_ERROR(M_IESPI_PAR_ERROR) | \
1817 V_OCSPI_PAR_ERROR(M_OCSPI_PAR_ERROR))
1818 #define MPS_INTR_MASK (V_TX0TPPARERRENB(M_TX0TPPARERRENB) | \
1819 V_TX1TPPARERRENB(M_TX1TPPARERRENB) | \
1820 V_RXTPPARERRENB(M_RXTPPARERRENB) | \
1821 V_MCAPARERRENB(M_MCAPARERRENB))
1822 #define XGM_EXTRA_INTR_MASK (F_LINKFAULTCHANGE)
1823 #define PL_INTR_MASK (F_T3DBG | F_XGMAC0_0 | F_XGMAC0_1 | F_MC5A | F_PM1_TX | \
1824 F_PM1_RX | F_ULP2_TX | F_ULP2_RX | F_TP1 | F_CIM | \
1825 F_MC7_CM | F_MC7_PMTX | F_MC7_PMRX | F_SGE3 | F_PCIM0 | \
1826 F_MPS0 | F_CPL_SWITCH)
1828 * Interrupt handler for the PCIX1 module.
1830 static void pci_intr_handler(adapter_t *adapter)
1832 static struct intr_info pcix1_intr_info[] = {
1833 { F_MSTDETPARERR, "PCI master detected parity error", -1, 1 },
1834 { F_SIGTARABT, "PCI signaled target abort", -1, 1 },
1835 { F_RCVTARABT, "PCI received target abort", -1, 1 },
1836 { F_RCVMSTABT, "PCI received master abort", -1, 1 },
1837 { F_SIGSYSERR, "PCI signaled system error", -1, 1 },
1838 { F_DETPARERR, "PCI detected parity error", -1, 1 },
1839 { F_SPLCMPDIS, "PCI split completion discarded", -1, 1 },
1840 { F_UNXSPLCMP, "PCI unexpected split completion error", -1, 1 },
1841 { F_RCVSPLCMPERR, "PCI received split completion error", -1,
1843 { F_DETCORECCERR, "PCI correctable ECC error",
1844 STAT_PCI_CORR_ECC, 0 },
1845 { F_DETUNCECCERR, "PCI uncorrectable ECC error", -1, 1 },
1846 { F_PIOPARERR, "PCI PIO FIFO parity error", -1, 1 },
1847 { V_WFPARERR(M_WFPARERR), "PCI write FIFO parity error", -1,
1849 { V_RFPARERR(M_RFPARERR), "PCI read FIFO parity error", -1,
1851 { V_CFPARERR(M_CFPARERR), "PCI command FIFO parity error", -1,
1853 { V_MSIXPARERR(M_MSIXPARERR), "PCI MSI-X table/PBA parity "
1858 if (t3_handle_intr_status(adapter, A_PCIX_INT_CAUSE, PCIX_INTR_MASK,
1859 pcix1_intr_info, adapter->irq_stats))
1860 t3_fatal_err(adapter);
1864 * Interrupt handler for the PCIE module.
1866 static void pcie_intr_handler(adapter_t *adapter)
1868 static struct intr_info pcie_intr_info[] = {
1869 { F_PEXERR, "PCI PEX error", -1, 1 },
1871 "PCI unexpected split completion DMA read error", -1, 1 },
1873 "PCI unexpected split completion DMA command error", -1, 1 },
1874 { F_PCIE_PIOPARERR, "PCI PIO FIFO parity error", -1, 1 },
1875 { F_PCIE_WFPARERR, "PCI write FIFO parity error", -1, 1 },
1876 { F_PCIE_RFPARERR, "PCI read FIFO parity error", -1, 1 },
1877 { F_PCIE_CFPARERR, "PCI command FIFO parity error", -1, 1 },
1878 { V_PCIE_MSIXPARERR(M_PCIE_MSIXPARERR),
1879 "PCI MSI-X table/PBA parity error", -1, 1 },
1880 { F_RETRYBUFPARERR, "PCI retry buffer parity error", -1, 1 },
1881 { F_RETRYLUTPARERR, "PCI retry LUT parity error", -1, 1 },
1882 { F_RXPARERR, "PCI Rx parity error", -1, 1 },
1883 { F_TXPARERR, "PCI Tx parity error", -1, 1 },
1884 { V_BISTERR(M_BISTERR), "PCI BIST error", -1, 1 },
1888 if (t3_read_reg(adapter, A_PCIE_INT_CAUSE) & F_PEXERR)
1889 CH_ALERT(adapter, "PEX error code 0x%x\n",
1890 t3_read_reg(adapter, A_PCIE_PEX_ERR));
1892 if (t3_handle_intr_status(adapter, A_PCIE_INT_CAUSE, PCIE_INTR_MASK,
1893 pcie_intr_info, adapter->irq_stats))
1894 t3_fatal_err(adapter);
1898 * TP interrupt handler.
1900 static void tp_intr_handler(adapter_t *adapter)
1902 static struct intr_info tp_intr_info[] = {
1903 { 0xffffff, "TP parity error", -1, 1 },
1904 { 0x1000000, "TP out of Rx pages", -1, 1 },
1905 { 0x2000000, "TP out of Tx pages", -1, 1 },
1908 static struct intr_info tp_intr_info_t3c[] = {
1909 { 0x1fffffff, "TP parity error", -1, 1 },
1910 { F_FLMRXFLSTEMPTY, "TP out of Rx pages", -1, 1 },
1911 { F_FLMTXFLSTEMPTY, "TP out of Tx pages", -1, 1 },
1915 if (t3_handle_intr_status(adapter, A_TP_INT_CAUSE, 0xffffffff,
1916 adapter->params.rev < T3_REV_C ?
1917 tp_intr_info : tp_intr_info_t3c, NULL))
1918 t3_fatal_err(adapter);
1922 * CIM interrupt handler.
1924 static void cim_intr_handler(adapter_t *adapter)
1926 static struct intr_info cim_intr_info[] = {
1927 { F_RSVDSPACEINT, "CIM reserved space write", -1, 1 },
1928 { F_SDRAMRANGEINT, "CIM SDRAM address out of range", -1, 1 },
1929 { F_FLASHRANGEINT, "CIM flash address out of range", -1, 1 },
1930 { F_BLKWRBOOTINT, "CIM block write to boot space", -1, 1 },
1931 { F_WRBLKFLASHINT, "CIM write to cached flash space", -1, 1 },
1932 { F_SGLWRFLASHINT, "CIM single write to flash space", -1, 1 },
1933 { F_BLKRDFLASHINT, "CIM block read from flash space", -1, 1 },
1934 { F_BLKWRFLASHINT, "CIM block write to flash space", -1, 1 },
1935 { F_BLKRDCTLINT, "CIM block read from CTL space", -1, 1 },
1936 { F_BLKWRCTLINT, "CIM block write to CTL space", -1, 1 },
1937 { F_BLKRDPLINT, "CIM block read from PL space", -1, 1 },
1938 { F_BLKWRPLINT, "CIM block write to PL space", -1, 1 },
1939 { F_DRAMPARERR, "CIM DRAM parity error", -1, 1 },
1940 { F_ICACHEPARERR, "CIM icache parity error", -1, 1 },
1941 { F_DCACHEPARERR, "CIM dcache parity error", -1, 1 },
1942 { F_OBQSGEPARERR, "CIM OBQ SGE parity error", -1, 1 },
1943 { F_OBQULPHIPARERR, "CIM OBQ ULPHI parity error", -1, 1 },
1944 { F_OBQULPLOPARERR, "CIM OBQ ULPLO parity error", -1, 1 },
1945 { F_IBQSGELOPARERR, "CIM IBQ SGELO parity error", -1, 1 },
1946 { F_IBQSGEHIPARERR, "CIM IBQ SGEHI parity error", -1, 1 },
1947 { F_IBQULPPARERR, "CIM IBQ ULP parity error", -1, 1 },
1948 { F_IBQTPPARERR, "CIM IBQ TP parity error", -1, 1 },
1949 { F_ITAGPARERR, "CIM itag parity error", -1, 1 },
1950 { F_DTAGPARERR, "CIM dtag parity error", -1, 1 },
1954 if (t3_handle_intr_status(adapter, A_CIM_HOST_INT_CAUSE, CIM_INTR_MASK,
1955 cim_intr_info, NULL))
1956 t3_fatal_err(adapter);
1960 * ULP RX interrupt handler.
1962 static void ulprx_intr_handler(adapter_t *adapter)
1964 static struct intr_info ulprx_intr_info[] = {
1965 { F_PARERRDATA, "ULP RX data parity error", -1, 1 },
1966 { F_PARERRPCMD, "ULP RX command parity error", -1, 1 },
1967 { F_ARBPF1PERR, "ULP RX ArbPF1 parity error", -1, 1 },
1968 { F_ARBPF0PERR, "ULP RX ArbPF0 parity error", -1, 1 },
1969 { F_ARBFPERR, "ULP RX ArbF parity error", -1, 1 },
1970 { F_PCMDMUXPERR, "ULP RX PCMDMUX parity error", -1, 1 },
1971 { F_DATASELFRAMEERR1, "ULP RX frame error", -1, 1 },
1972 { F_DATASELFRAMEERR0, "ULP RX frame error", -1, 1 },
1976 if (t3_handle_intr_status(adapter, A_ULPRX_INT_CAUSE, 0xffffffff,
1977 ulprx_intr_info, NULL))
1978 t3_fatal_err(adapter);
1982 * ULP TX interrupt handler.
1984 static void ulptx_intr_handler(adapter_t *adapter)
1986 static struct intr_info ulptx_intr_info[] = {
1987 { F_PBL_BOUND_ERR_CH0, "ULP TX channel 0 PBL out of bounds",
1988 STAT_ULP_CH0_PBL_OOB, 0 },
1989 { F_PBL_BOUND_ERR_CH1, "ULP TX channel 1 PBL out of bounds",
1990 STAT_ULP_CH1_PBL_OOB, 0 },
1991 { 0xfc, "ULP TX parity error", -1, 1 },
1995 if (t3_handle_intr_status(adapter, A_ULPTX_INT_CAUSE, 0xffffffff,
1996 ulptx_intr_info, adapter->irq_stats))
1997 t3_fatal_err(adapter);
2000 #define ICSPI_FRM_ERR (F_ICSPI0_FIFO2X_RX_FRAMING_ERROR | \
2001 F_ICSPI1_FIFO2X_RX_FRAMING_ERROR | F_ICSPI0_RX_FRAMING_ERROR | \
2002 F_ICSPI1_RX_FRAMING_ERROR | F_ICSPI0_TX_FRAMING_ERROR | \
2003 F_ICSPI1_TX_FRAMING_ERROR)
2004 #define OESPI_FRM_ERR (F_OESPI0_RX_FRAMING_ERROR | \
2005 F_OESPI1_RX_FRAMING_ERROR | F_OESPI0_TX_FRAMING_ERROR | \
2006 F_OESPI1_TX_FRAMING_ERROR | F_OESPI0_OFIFO2X_TX_FRAMING_ERROR | \
2007 F_OESPI1_OFIFO2X_TX_FRAMING_ERROR)
2010 * PM TX interrupt handler.
2012 static void pmtx_intr_handler(adapter_t *adapter)
2014 static struct intr_info pmtx_intr_info[] = {
2015 { F_ZERO_C_CMD_ERROR, "PMTX 0-length pcmd", -1, 1 },
2016 { ICSPI_FRM_ERR, "PMTX ispi framing error", -1, 1 },
2017 { OESPI_FRM_ERR, "PMTX ospi framing error", -1, 1 },
2018 { V_ICSPI_PAR_ERROR(M_ICSPI_PAR_ERROR),
2019 "PMTX ispi parity error", -1, 1 },
2020 { V_OESPI_PAR_ERROR(M_OESPI_PAR_ERROR),
2021 "PMTX ospi parity error", -1, 1 },
2025 if (t3_handle_intr_status(adapter, A_PM1_TX_INT_CAUSE, 0xffffffff,
2026 pmtx_intr_info, NULL))
2027 t3_fatal_err(adapter);
2030 #define IESPI_FRM_ERR (F_IESPI0_FIFO2X_RX_FRAMING_ERROR | \
2031 F_IESPI1_FIFO2X_RX_FRAMING_ERROR | F_IESPI0_RX_FRAMING_ERROR | \
2032 F_IESPI1_RX_FRAMING_ERROR | F_IESPI0_TX_FRAMING_ERROR | \
2033 F_IESPI1_TX_FRAMING_ERROR)
2034 #define OCSPI_FRM_ERR (F_OCSPI0_RX_FRAMING_ERROR | \
2035 F_OCSPI1_RX_FRAMING_ERROR | F_OCSPI0_TX_FRAMING_ERROR | \
2036 F_OCSPI1_TX_FRAMING_ERROR | F_OCSPI0_OFIFO2X_TX_FRAMING_ERROR | \
2037 F_OCSPI1_OFIFO2X_TX_FRAMING_ERROR)
2040 * PM RX interrupt handler.
2042 static void pmrx_intr_handler(adapter_t *adapter)
2044 static struct intr_info pmrx_intr_info[] = {
2045 { F_ZERO_E_CMD_ERROR, "PMRX 0-length pcmd", -1, 1 },
2046 { IESPI_FRM_ERR, "PMRX ispi framing error", -1, 1 },
2047 { OCSPI_FRM_ERR, "PMRX ospi framing error", -1, 1 },
2048 { V_IESPI_PAR_ERROR(M_IESPI_PAR_ERROR),
2049 "PMRX ispi parity error", -1, 1 },
2050 { V_OCSPI_PAR_ERROR(M_OCSPI_PAR_ERROR),
2051 "PMRX ospi parity error", -1, 1 },
2055 if (t3_handle_intr_status(adapter, A_PM1_RX_INT_CAUSE, 0xffffffff,
2056 pmrx_intr_info, NULL))
2057 t3_fatal_err(adapter);
2061 * CPL switch interrupt handler.
2063 static void cplsw_intr_handler(adapter_t *adapter)
2065 static struct intr_info cplsw_intr_info[] = {
2066 { F_CIM_OP_MAP_PERR, "CPL switch CIM parity error", -1, 1 },
2067 { F_CIM_OVFL_ERROR, "CPL switch CIM overflow", -1, 1 },
2068 { F_TP_FRAMING_ERROR, "CPL switch TP framing error", -1, 1 },
2069 { F_SGE_FRAMING_ERROR, "CPL switch SGE framing error", -1, 1 },
2070 { F_CIM_FRAMING_ERROR, "CPL switch CIM framing error", -1, 1 },
2071 { F_ZERO_SWITCH_ERROR, "CPL switch no-switch error", -1, 1 },
2075 if (t3_handle_intr_status(adapter, A_CPL_INTR_CAUSE, 0xffffffff,
2076 cplsw_intr_info, NULL))
2077 t3_fatal_err(adapter);
2081 * MPS interrupt handler.
2083 static void mps_intr_handler(adapter_t *adapter)
2085 static struct intr_info mps_intr_info[] = {
2086 { 0x1ff, "MPS parity error", -1, 1 },
2090 if (t3_handle_intr_status(adapter, A_MPS_INT_CAUSE, 0xffffffff,
2091 mps_intr_info, NULL))
2092 t3_fatal_err(adapter);
2095 #define MC7_INTR_FATAL (F_UE | V_PE(M_PE) | F_AE)
2098 * MC7 interrupt handler.
2100 static void mc7_intr_handler(struct mc7 *mc7)
2102 adapter_t *adapter = mc7->adapter;
2103 u32 cause = t3_read_reg(adapter, mc7->offset + A_MC7_INT_CAUSE);
2106 mc7->stats.corr_err++;
2107 CH_WARN(adapter, "%s MC7 correctable error at addr 0x%x, "
2108 "data 0x%x 0x%x 0x%x\n", mc7->name,
2109 t3_read_reg(adapter, mc7->offset + A_MC7_CE_ADDR),
2110 t3_read_reg(adapter, mc7->offset + A_MC7_CE_DATA0),
2111 t3_read_reg(adapter, mc7->offset + A_MC7_CE_DATA1),
2112 t3_read_reg(adapter, mc7->offset + A_MC7_CE_DATA2));
2116 mc7->stats.uncorr_err++;
2117 CH_ALERT(adapter, "%s MC7 uncorrectable error at addr 0x%x, "
2118 "data 0x%x 0x%x 0x%x\n", mc7->name,
2119 t3_read_reg(adapter, mc7->offset + A_MC7_UE_ADDR),
2120 t3_read_reg(adapter, mc7->offset + A_MC7_UE_DATA0),
2121 t3_read_reg(adapter, mc7->offset + A_MC7_UE_DATA1),
2122 t3_read_reg(adapter, mc7->offset + A_MC7_UE_DATA2));
2126 mc7->stats.parity_err++;
2127 CH_ALERT(adapter, "%s MC7 parity error 0x%x\n",
2128 mc7->name, G_PE(cause));
2134 if (adapter->params.rev > 0)
2135 addr = t3_read_reg(adapter,
2136 mc7->offset + A_MC7_ERR_ADDR);
2137 mc7->stats.addr_err++;
2138 CH_ALERT(adapter, "%s MC7 address error: 0x%x\n",
2142 if (cause & MC7_INTR_FATAL)
2143 t3_fatal_err(adapter);
2145 t3_write_reg(adapter, mc7->offset + A_MC7_INT_CAUSE, cause);
2148 #define XGM_INTR_FATAL (V_TXFIFO_PRTY_ERR(M_TXFIFO_PRTY_ERR) | \
2149 V_RXFIFO_PRTY_ERR(M_RXFIFO_PRTY_ERR))
2151 * XGMAC interrupt handler.
2153 static int mac_intr_handler(adapter_t *adap, unsigned int idx)
2156 struct port_info *pi;
2159 idx = idx == 0 ? 0 : adapter_info(adap)->nports0; /* MAC idx -> port */
2160 pi = adap2pinfo(adap, idx);
2164 * We mask out interrupt causes for which we're not taking interrupts.
2165 * This allows us to use polling logic to monitor some of the other
2166 * conditions when taking interrupts would impose too much load on the
2169 cause = (t3_read_reg(adap, A_XGM_INT_CAUSE + mac->offset)
2170 & ~(F_RXFIFO_OVERFLOW));
2172 if (cause & V_TXFIFO_PRTY_ERR(M_TXFIFO_PRTY_ERR)) {
2173 mac->stats.tx_fifo_parity_err++;
2174 CH_ALERT(adap, "port%d: MAC TX FIFO parity error\n", idx);
2176 if (cause & V_RXFIFO_PRTY_ERR(M_RXFIFO_PRTY_ERR)) {
2177 mac->stats.rx_fifo_parity_err++;
2178 CH_ALERT(adap, "port%d: MAC RX FIFO parity error\n", idx);
2180 if (cause & F_TXFIFO_UNDERRUN)
2181 mac->stats.tx_fifo_urun++;
2182 if (cause & F_RXFIFO_OVERFLOW)
2183 mac->stats.rx_fifo_ovfl++;
2184 if (cause & V_SERDES_LOS(M_SERDES_LOS))
2185 mac->stats.serdes_signal_loss++;
2186 if (cause & F_XAUIPCSCTCERR)
2187 mac->stats.xaui_pcs_ctc_err++;
2188 if (cause & F_XAUIPCSALIGNCHANGE)
2189 mac->stats.xaui_pcs_align_change++;
2190 if (cause & F_XGM_INT &
2191 t3_read_reg(adap, A_XGM_INT_ENABLE + mac->offset)) {
2192 t3_set_reg_field(adap, A_XGM_INT_ENABLE + mac->offset,
2195 /* link fault suspected */
2196 pi->link_fault = LF_MAYBE;
2197 t3_os_link_intr(pi);
2200 if (cause & XGM_INTR_FATAL)
2203 t3_write_reg(adap, A_XGM_INT_CAUSE + mac->offset, cause);
2208 * Interrupt handler for PHY events.
2210 static int phy_intr_handler(adapter_t *adapter)
2212 u32 i, cause = t3_read_reg(adapter, A_T3DBG_INT_CAUSE);
2214 for_each_port(adapter, i) {
2215 struct port_info *p = adap2pinfo(adapter, i);
2217 if (!(p->phy.caps & SUPPORTED_IRQ))
2220 if (cause & (1 << adapter_info(adapter)->gpio_intr[i])) {
2221 int phy_cause = p->phy.ops->intr_handler(&p->phy);
2223 if (phy_cause & cphy_cause_link_change)
2225 if (phy_cause & cphy_cause_fifo_error)
2226 p->phy.fifo_errors++;
2227 if (phy_cause & cphy_cause_module_change)
2228 t3_os_phymod_changed(adapter, i);
2229 if (phy_cause & cphy_cause_alarm)
2230 CH_WARN(adapter, "Operation affected due to "
2231 "adverse environment. Check the spec "
2232 "sheet for corrective action.");
2236 t3_write_reg(adapter, A_T3DBG_INT_CAUSE, cause);
2241 * t3_slow_intr_handler - control path interrupt handler
2242 * @adapter: the adapter
2244 * T3 interrupt handler for non-data interrupt events, e.g., errors.
2245 * The designation 'slow' is because it involves register reads, while
2246 * data interrupts typically don't involve any MMIOs.
2248 int t3_slow_intr_handler(adapter_t *adapter)
2250 u32 cause = t3_read_reg(adapter, A_PL_INT_CAUSE0);
2252 cause &= adapter->slow_intr_mask;
2255 if (cause & F_PCIM0) {
2256 if (is_pcie(adapter))
2257 pcie_intr_handler(adapter);
2259 pci_intr_handler(adapter);
2262 t3_sge_err_intr_handler(adapter);
2263 if (cause & F_MC7_PMRX)
2264 mc7_intr_handler(&adapter->pmrx);
2265 if (cause & F_MC7_PMTX)
2266 mc7_intr_handler(&adapter->pmtx);
2267 if (cause & F_MC7_CM)
2268 mc7_intr_handler(&adapter->cm);
2270 cim_intr_handler(adapter);
2272 tp_intr_handler(adapter);
2273 if (cause & F_ULP2_RX)
2274 ulprx_intr_handler(adapter);
2275 if (cause & F_ULP2_TX)
2276 ulptx_intr_handler(adapter);
2277 if (cause & F_PM1_RX)
2278 pmrx_intr_handler(adapter);
2279 if (cause & F_PM1_TX)
2280 pmtx_intr_handler(adapter);
2281 if (cause & F_CPL_SWITCH)
2282 cplsw_intr_handler(adapter);
2284 mps_intr_handler(adapter);
2286 t3_mc5_intr_handler(&adapter->mc5);
2287 if (cause & F_XGMAC0_0)
2288 mac_intr_handler(adapter, 0);
2289 if (cause & F_XGMAC0_1)
2290 mac_intr_handler(adapter, 1);
2291 if (cause & F_T3DBG)
2292 phy_intr_handler(adapter);
2294 /* Clear the interrupts just processed. */
2295 t3_write_reg(adapter, A_PL_INT_CAUSE0, cause);
2296 (void) t3_read_reg(adapter, A_PL_INT_CAUSE0); /* flush */
2300 static unsigned int calc_gpio_intr(adapter_t *adap)
2302 unsigned int i, gpi_intr = 0;
2304 for_each_port(adap, i)
2305 if ((adap2pinfo(adap, i)->phy.caps & SUPPORTED_IRQ) &&
2306 adapter_info(adap)->gpio_intr[i])
2307 gpi_intr |= 1 << adapter_info(adap)->gpio_intr[i];
2312 * t3_intr_enable - enable interrupts
2313 * @adapter: the adapter whose interrupts should be enabled
2315 * Enable interrupts by setting the interrupt enable registers of the
2316 * various HW modules and then enabling the top-level interrupt
2319 void t3_intr_enable(adapter_t *adapter)
2321 static struct addr_val_pair intr_en_avp[] = {
2322 { A_MC7_INT_ENABLE, MC7_INTR_MASK },
2323 { A_MC7_INT_ENABLE - MC7_PMRX_BASE_ADDR + MC7_PMTX_BASE_ADDR,
2325 { A_MC7_INT_ENABLE - MC7_PMRX_BASE_ADDR + MC7_CM_BASE_ADDR,
2327 { A_MC5_DB_INT_ENABLE, MC5_INTR_MASK },
2328 { A_ULPRX_INT_ENABLE, ULPRX_INTR_MASK },
2329 { A_PM1_TX_INT_ENABLE, PMTX_INTR_MASK },
2330 { A_PM1_RX_INT_ENABLE, PMRX_INTR_MASK },
2331 { A_CIM_HOST_INT_ENABLE, CIM_INTR_MASK },
2332 { A_MPS_INT_ENABLE, MPS_INTR_MASK },
2335 adapter->slow_intr_mask = PL_INTR_MASK;
2337 t3_write_regs(adapter, intr_en_avp, ARRAY_SIZE(intr_en_avp), 0);
2338 t3_write_reg(adapter, A_TP_INT_ENABLE,
2339 adapter->params.rev >= T3_REV_C ? 0x2bfffff : 0x3bfffff);
2340 t3_write_reg(adapter, A_SG_INT_ENABLE, SGE_INTR_MASK);
2342 if (adapter->params.rev > 0) {
2343 t3_write_reg(adapter, A_CPL_INTR_ENABLE,
2344 CPLSW_INTR_MASK | F_CIM_OVFL_ERROR);
2345 t3_write_reg(adapter, A_ULPTX_INT_ENABLE,
2346 ULPTX_INTR_MASK | F_PBL_BOUND_ERR_CH0 |
2347 F_PBL_BOUND_ERR_CH1);
2349 t3_write_reg(adapter, A_CPL_INTR_ENABLE, CPLSW_INTR_MASK);
2350 t3_write_reg(adapter, A_ULPTX_INT_ENABLE, ULPTX_INTR_MASK);
2353 t3_write_reg(adapter, A_T3DBG_INT_ENABLE, calc_gpio_intr(adapter));
2355 if (is_pcie(adapter))
2356 t3_write_reg(adapter, A_PCIE_INT_ENABLE, PCIE_INTR_MASK);
2358 t3_write_reg(adapter, A_PCIX_INT_ENABLE, PCIX_INTR_MASK);
2359 t3_write_reg(adapter, A_PL_INT_ENABLE0, adapter->slow_intr_mask);
2360 (void) t3_read_reg(adapter, A_PL_INT_ENABLE0); /* flush */
2364 * t3_intr_disable - disable a card's interrupts
2365 * @adapter: the adapter whose interrupts should be disabled
2367 * Disable interrupts. We only disable the top-level interrupt
2368 * concentrator and the SGE data interrupts.
2370 void t3_intr_disable(adapter_t *adapter)
2372 t3_write_reg(adapter, A_PL_INT_ENABLE0, 0);
2373 (void) t3_read_reg(adapter, A_PL_INT_ENABLE0); /* flush */
2374 adapter->slow_intr_mask = 0;
2378 * t3_intr_clear - clear all interrupts
2379 * @adapter: the adapter whose interrupts should be cleared
2381 * Clears all interrupts.
2383 void t3_intr_clear(adapter_t *adapter)
2385 static const unsigned int cause_reg_addr[] = {
2387 A_SG_RSPQ_FL_STATUS,
2390 A_MC7_INT_CAUSE - MC7_PMRX_BASE_ADDR + MC7_PMTX_BASE_ADDR,
2391 A_MC7_INT_CAUSE - MC7_PMRX_BASE_ADDR + MC7_CM_BASE_ADDR,
2392 A_CIM_HOST_INT_CAUSE,
2405 /* Clear PHY and MAC interrupts for each port. */
2406 for_each_port(adapter, i)
2407 t3_port_intr_clear(adapter, i);
2409 for (i = 0; i < ARRAY_SIZE(cause_reg_addr); ++i)
2410 t3_write_reg(adapter, cause_reg_addr[i], 0xffffffff);
2412 if (is_pcie(adapter))
2413 t3_write_reg(adapter, A_PCIE_PEX_ERR, 0xffffffff);
2414 t3_write_reg(adapter, A_PL_INT_CAUSE0, 0xffffffff);
2415 (void) t3_read_reg(adapter, A_PL_INT_CAUSE0); /* flush */
2418 void t3_xgm_intr_enable(adapter_t *adapter, int idx)
2420 struct port_info *pi = adap2pinfo(adapter, idx);
2422 t3_write_reg(adapter, A_XGM_XGM_INT_ENABLE + pi->mac.offset,
2423 XGM_EXTRA_INTR_MASK);
2426 void t3_xgm_intr_disable(adapter_t *adapter, int idx)
2428 struct port_info *pi = adap2pinfo(adapter, idx);
2430 t3_write_reg(adapter, A_XGM_XGM_INT_DISABLE + pi->mac.offset,
2435 * t3_port_intr_enable - enable port-specific interrupts
2436 * @adapter: associated adapter
2437 * @idx: index of port whose interrupts should be enabled
2439 * Enable port-specific (i.e., MAC and PHY) interrupts for the given
2442 void t3_port_intr_enable(adapter_t *adapter, int idx)
2444 struct port_info *pi = adap2pinfo(adapter, idx);
2446 t3_write_reg(adapter, A_XGM_INT_ENABLE + pi->mac.offset, XGM_INTR_MASK);
2447 pi->phy.ops->intr_enable(&pi->phy);
2451 * t3_port_intr_disable - disable port-specific interrupts
2452 * @adapter: associated adapter
2453 * @idx: index of port whose interrupts should be disabled
2455 * Disable port-specific (i.e., MAC and PHY) interrupts for the given
2458 void t3_port_intr_disable(adapter_t *adapter, int idx)
2460 struct port_info *pi = adap2pinfo(adapter, idx);
2462 t3_write_reg(adapter, A_XGM_INT_ENABLE + pi->mac.offset, 0);
2463 pi->phy.ops->intr_disable(&pi->phy);
2467 * t3_port_intr_clear - clear port-specific interrupts
2468 * @adapter: associated adapter
2469 * @idx: index of port whose interrupts to clear
2471 * Clear port-specific (i.e., MAC and PHY) interrupts for the given
2474 void t3_port_intr_clear(adapter_t *adapter, int idx)
2476 struct port_info *pi = adap2pinfo(adapter, idx);
2478 t3_write_reg(adapter, A_XGM_INT_CAUSE + pi->mac.offset, 0xffffffff);
2479 pi->phy.ops->intr_clear(&pi->phy);
2482 #define SG_CONTEXT_CMD_ATTEMPTS 100
2485 * t3_sge_write_context - write an SGE context
2486 * @adapter: the adapter
2487 * @id: the context id
2488 * @type: the context type
2490 * Program an SGE context with the values already loaded in the
2491 * CONTEXT_DATA? registers.
2493 static int t3_sge_write_context(adapter_t *adapter, unsigned int id,
2496 if (type == F_RESPONSEQ) {
2498 * Can't write the Response Queue Context bits for
2499 * Interrupt Armed or the Reserve bits after the chip
2500 * has been initialized out of reset. Writing to these
2501 * bits can confuse the hardware.
2503 t3_write_reg(adapter, A_SG_CONTEXT_MASK0, 0xffffffff);
2504 t3_write_reg(adapter, A_SG_CONTEXT_MASK1, 0xffffffff);
2505 t3_write_reg(adapter, A_SG_CONTEXT_MASK2, 0x17ffffff);
2506 t3_write_reg(adapter, A_SG_CONTEXT_MASK3, 0xffffffff);
2508 t3_write_reg(adapter, A_SG_CONTEXT_MASK0, 0xffffffff);
2509 t3_write_reg(adapter, A_SG_CONTEXT_MASK1, 0xffffffff);
2510 t3_write_reg(adapter, A_SG_CONTEXT_MASK2, 0xffffffff);
2511 t3_write_reg(adapter, A_SG_CONTEXT_MASK3, 0xffffffff);
2513 t3_write_reg(adapter, A_SG_CONTEXT_CMD,
2514 V_CONTEXT_CMD_OPCODE(1) | type | V_CONTEXT(id));
2515 return t3_wait_op_done(adapter, A_SG_CONTEXT_CMD, F_CONTEXT_CMD_BUSY,
2516 0, SG_CONTEXT_CMD_ATTEMPTS, 1);
2520 * clear_sge_ctxt - completely clear an SGE context
2521 * @adapter: the adapter
2522 * @id: the context id
2523 * @type: the context type
2525 * Completely clear an SGE context. Used predominantly at post-reset
2526 * initialization. Note in particular that we don't skip writing to any
2527 * "sensitive bits" in the contexts the way that t3_sge_write_context()
2530 static int clear_sge_ctxt(adapter_t *adap, unsigned int id, unsigned int type)
2532 t3_write_reg(adap, A_SG_CONTEXT_DATA0, 0);
2533 t3_write_reg(adap, A_SG_CONTEXT_DATA1, 0);
2534 t3_write_reg(adap, A_SG_CONTEXT_DATA2, 0);
2535 t3_write_reg(adap, A_SG_CONTEXT_DATA3, 0);
2536 t3_write_reg(adap, A_SG_CONTEXT_MASK0, 0xffffffff);
2537 t3_write_reg(adap, A_SG_CONTEXT_MASK1, 0xffffffff);
2538 t3_write_reg(adap, A_SG_CONTEXT_MASK2, 0xffffffff);
2539 t3_write_reg(adap, A_SG_CONTEXT_MASK3, 0xffffffff);
2540 t3_write_reg(adap, A_SG_CONTEXT_CMD,
2541 V_CONTEXT_CMD_OPCODE(1) | type | V_CONTEXT(id));
2542 return t3_wait_op_done(adap, A_SG_CONTEXT_CMD, F_CONTEXT_CMD_BUSY,
2543 0, SG_CONTEXT_CMD_ATTEMPTS, 1);
2547 * t3_sge_init_ecntxt - initialize an SGE egress context
2548 * @adapter: the adapter to configure
2549 * @id: the context id
2550 * @gts_enable: whether to enable GTS for the context
2551 * @type: the egress context type
2552 * @respq: associated response queue
2553 * @base_addr: base address of queue
2554 * @size: number of queue entries
2556 * @gen: initial generation value for the context
2557 * @cidx: consumer pointer
2559 * Initialize an SGE egress context and make it ready for use. If the
2560 * platform allows concurrent context operations, the caller is
2561 * responsible for appropriate locking.
2563 int t3_sge_init_ecntxt(adapter_t *adapter, unsigned int id, int gts_enable,
2564 enum sge_context_type type, int respq, u64 base_addr,
2565 unsigned int size, unsigned int token, int gen,
2568 unsigned int credits = type == SGE_CNTXT_OFLD ? 0 : FW_WR_NUM;
2570 if (base_addr & 0xfff) /* must be 4K aligned */
2572 if (t3_read_reg(adapter, A_SG_CONTEXT_CMD) & F_CONTEXT_CMD_BUSY)
2576 t3_write_reg(adapter, A_SG_CONTEXT_DATA0, V_EC_INDEX(cidx) |
2577 V_EC_CREDITS(credits) | V_EC_GTS(gts_enable));
2578 t3_write_reg(adapter, A_SG_CONTEXT_DATA1, V_EC_SIZE(size) |
2579 V_EC_BASE_LO((u32)base_addr & 0xffff));
2581 t3_write_reg(adapter, A_SG_CONTEXT_DATA2, (u32)base_addr);
2583 t3_write_reg(adapter, A_SG_CONTEXT_DATA3,
2584 V_EC_BASE_HI((u32)base_addr & 0xf) | V_EC_RESPQ(respq) |
2585 V_EC_TYPE(type) | V_EC_GEN(gen) | V_EC_UP_TOKEN(token) |
2587 return t3_sge_write_context(adapter, id, F_EGRESS);
2591 * t3_sge_init_flcntxt - initialize an SGE free-buffer list context
2592 * @adapter: the adapter to configure
2593 * @id: the context id
2594 * @gts_enable: whether to enable GTS for the context
2595 * @base_addr: base address of queue
2596 * @size: number of queue entries
2597 * @bsize: size of each buffer for this queue
2598 * @cong_thres: threshold to signal congestion to upstream producers
2599 * @gen: initial generation value for the context
2600 * @cidx: consumer pointer
2602 * Initialize an SGE free list context and make it ready for use. The
2603 * caller is responsible for ensuring only one context operation occurs
2606 int t3_sge_init_flcntxt(adapter_t *adapter, unsigned int id, int gts_enable,
2607 u64 base_addr, unsigned int size, unsigned int bsize,
2608 unsigned int cong_thres, int gen, unsigned int cidx)
2610 if (base_addr & 0xfff) /* must be 4K aligned */
2612 if (t3_read_reg(adapter, A_SG_CONTEXT_CMD) & F_CONTEXT_CMD_BUSY)
2616 t3_write_reg(adapter, A_SG_CONTEXT_DATA0, (u32)base_addr);
2618 t3_write_reg(adapter, A_SG_CONTEXT_DATA1,
2619 V_FL_BASE_HI((u32)base_addr) |
2620 V_FL_INDEX_LO(cidx & M_FL_INDEX_LO));
2621 t3_write_reg(adapter, A_SG_CONTEXT_DATA2, V_FL_SIZE(size) |
2622 V_FL_GEN(gen) | V_FL_INDEX_HI(cidx >> 12) |
2623 V_FL_ENTRY_SIZE_LO(bsize & M_FL_ENTRY_SIZE_LO));
2624 t3_write_reg(adapter, A_SG_CONTEXT_DATA3,
2625 V_FL_ENTRY_SIZE_HI(bsize >> (32 - S_FL_ENTRY_SIZE_LO)) |
2626 V_FL_CONG_THRES(cong_thres) | V_FL_GTS(gts_enable));
2627 return t3_sge_write_context(adapter, id, F_FREELIST);
2631 * t3_sge_init_rspcntxt - initialize an SGE response queue context
2632 * @adapter: the adapter to configure
2633 * @id: the context id
2634 * @irq_vec_idx: MSI-X interrupt vector index, 0 if no MSI-X, -1 if no IRQ
2635 * @base_addr: base address of queue
2636 * @size: number of queue entries
2637 * @fl_thres: threshold for selecting the normal or jumbo free list
2638 * @gen: initial generation value for the context
2639 * @cidx: consumer pointer
2641 * Initialize an SGE response queue context and make it ready for use.
2642 * The caller is responsible for ensuring only one context operation
2645 int t3_sge_init_rspcntxt(adapter_t *adapter, unsigned int id, int irq_vec_idx,
2646 u64 base_addr, unsigned int size,
2647 unsigned int fl_thres, int gen, unsigned int cidx)
2649 unsigned int ctrl, intr = 0;
2651 if (base_addr & 0xfff) /* must be 4K aligned */
2653 if (t3_read_reg(adapter, A_SG_CONTEXT_CMD) & F_CONTEXT_CMD_BUSY)
2657 t3_write_reg(adapter, A_SG_CONTEXT_DATA0, V_CQ_SIZE(size) |
2659 t3_write_reg(adapter, A_SG_CONTEXT_DATA1, (u32)base_addr);
2661 ctrl = t3_read_reg(adapter, A_SG_CONTROL);
2662 if ((irq_vec_idx > 0) ||
2663 ((irq_vec_idx == 0) && !(ctrl & F_ONEINTMULTQ)))
2664 intr = F_RQ_INTR_EN;
2665 if (irq_vec_idx >= 0)
2666 intr |= V_RQ_MSI_VEC(irq_vec_idx);
2667 t3_write_reg(adapter, A_SG_CONTEXT_DATA2,
2668 V_CQ_BASE_HI((u32)base_addr) | intr | V_RQ_GEN(gen));
2669 t3_write_reg(adapter, A_SG_CONTEXT_DATA3, fl_thres);
2670 return t3_sge_write_context(adapter, id, F_RESPONSEQ);
2674 * t3_sge_init_cqcntxt - initialize an SGE completion queue context
2675 * @adapter: the adapter to configure
2676 * @id: the context id
2677 * @base_addr: base address of queue
2678 * @size: number of queue entries
2679 * @rspq: response queue for async notifications
2680 * @ovfl_mode: CQ overflow mode
2681 * @credits: completion queue credits
2682 * @credit_thres: the credit threshold
2684 * Initialize an SGE completion queue context and make it ready for use.
2685 * The caller is responsible for ensuring only one context operation
2688 int t3_sge_init_cqcntxt(adapter_t *adapter, unsigned int id, u64 base_addr,
2689 unsigned int size, int rspq, int ovfl_mode,
2690 unsigned int credits, unsigned int credit_thres)
2692 if (base_addr & 0xfff) /* must be 4K aligned */
2694 if (t3_read_reg(adapter, A_SG_CONTEXT_CMD) & F_CONTEXT_CMD_BUSY)
2698 t3_write_reg(adapter, A_SG_CONTEXT_DATA0, V_CQ_SIZE(size));
2699 t3_write_reg(adapter, A_SG_CONTEXT_DATA1, (u32)base_addr);
2701 t3_write_reg(adapter, A_SG_CONTEXT_DATA2,
2702 V_CQ_BASE_HI((u32)base_addr) | V_CQ_RSPQ(rspq) |
2703 V_CQ_GEN(1) | V_CQ_OVERFLOW_MODE(ovfl_mode) |
2704 V_CQ_ERR(ovfl_mode));
2705 t3_write_reg(adapter, A_SG_CONTEXT_DATA3, V_CQ_CREDITS(credits) |
2706 V_CQ_CREDIT_THRES(credit_thres));
2707 return t3_sge_write_context(adapter, id, F_CQ);
2711 * t3_sge_enable_ecntxt - enable/disable an SGE egress context
2712 * @adapter: the adapter
2713 * @id: the egress context id
2714 * @enable: enable (1) or disable (0) the context
2716 * Enable or disable an SGE egress context. The caller is responsible for
2717 * ensuring only one context operation occurs at a time.
2719 int t3_sge_enable_ecntxt(adapter_t *adapter, unsigned int id, int enable)
2721 if (t3_read_reg(adapter, A_SG_CONTEXT_CMD) & F_CONTEXT_CMD_BUSY)
2724 t3_write_reg(adapter, A_SG_CONTEXT_MASK0, 0);
2725 t3_write_reg(adapter, A_SG_CONTEXT_MASK1, 0);
2726 t3_write_reg(adapter, A_SG_CONTEXT_MASK2, 0);
2727 t3_write_reg(adapter, A_SG_CONTEXT_MASK3, F_EC_VALID);
2728 t3_write_reg(adapter, A_SG_CONTEXT_DATA3, V_EC_VALID(enable));
2729 t3_write_reg(adapter, A_SG_CONTEXT_CMD,
2730 V_CONTEXT_CMD_OPCODE(1) | F_EGRESS | V_CONTEXT(id));
2731 return t3_wait_op_done(adapter, A_SG_CONTEXT_CMD, F_CONTEXT_CMD_BUSY,
2732 0, SG_CONTEXT_CMD_ATTEMPTS, 1);
2736 * t3_sge_disable_fl - disable an SGE free-buffer list
2737 * @adapter: the adapter
2738 * @id: the free list context id
2740 * Disable an SGE free-buffer list. The caller is responsible for
2741 * ensuring only one context operation occurs at a time.
2743 int t3_sge_disable_fl(adapter_t *adapter, unsigned int id)
2745 if (t3_read_reg(adapter, A_SG_CONTEXT_CMD) & F_CONTEXT_CMD_BUSY)
2748 t3_write_reg(adapter, A_SG_CONTEXT_MASK0, 0);
2749 t3_write_reg(adapter, A_SG_CONTEXT_MASK1, 0);
2750 t3_write_reg(adapter, A_SG_CONTEXT_MASK2, V_FL_SIZE(M_FL_SIZE));
2751 t3_write_reg(adapter, A_SG_CONTEXT_MASK3, 0);
2752 t3_write_reg(adapter, A_SG_CONTEXT_DATA2, 0);
2753 t3_write_reg(adapter, A_SG_CONTEXT_CMD,
2754 V_CONTEXT_CMD_OPCODE(1) | F_FREELIST | V_CONTEXT(id));
2755 return t3_wait_op_done(adapter, A_SG_CONTEXT_CMD, F_CONTEXT_CMD_BUSY,
2756 0, SG_CONTEXT_CMD_ATTEMPTS, 1);
2760 * t3_sge_disable_rspcntxt - disable an SGE response queue
2761 * @adapter: the adapter
2762 * @id: the response queue context id
2764 * Disable an SGE response queue. The caller is responsible for
2765 * ensuring only one context operation occurs at a time.
2767 int t3_sge_disable_rspcntxt(adapter_t *adapter, unsigned int id)
2769 if (t3_read_reg(adapter, A_SG_CONTEXT_CMD) & F_CONTEXT_CMD_BUSY)
2772 t3_write_reg(adapter, A_SG_CONTEXT_MASK0, V_CQ_SIZE(M_CQ_SIZE));
2773 t3_write_reg(adapter, A_SG_CONTEXT_MASK1, 0);
2774 t3_write_reg(adapter, A_SG_CONTEXT_MASK2, 0);
2775 t3_write_reg(adapter, A_SG_CONTEXT_MASK3, 0);
2776 t3_write_reg(adapter, A_SG_CONTEXT_DATA0, 0);
2777 t3_write_reg(adapter, A_SG_CONTEXT_CMD,
2778 V_CONTEXT_CMD_OPCODE(1) | F_RESPONSEQ | V_CONTEXT(id));
2779 return t3_wait_op_done(adapter, A_SG_CONTEXT_CMD, F_CONTEXT_CMD_BUSY,
2780 0, SG_CONTEXT_CMD_ATTEMPTS, 1);
2784 * t3_sge_disable_cqcntxt - disable an SGE completion queue
2785 * @adapter: the adapter
2786 * @id: the completion queue context id
2788 * Disable an SGE completion queue. The caller is responsible for
2789 * ensuring only one context operation occurs at a time.
2791 int t3_sge_disable_cqcntxt(adapter_t *adapter, unsigned int id)
2793 if (t3_read_reg(adapter, A_SG_CONTEXT_CMD) & F_CONTEXT_CMD_BUSY)
2796 t3_write_reg(adapter, A_SG_CONTEXT_MASK0, V_CQ_SIZE(M_CQ_SIZE));
2797 t3_write_reg(adapter, A_SG_CONTEXT_MASK1, 0);
2798 t3_write_reg(adapter, A_SG_CONTEXT_MASK2, 0);
2799 t3_write_reg(adapter, A_SG_CONTEXT_MASK3, 0);
2800 t3_write_reg(adapter, A_SG_CONTEXT_DATA0, 0);
2801 t3_write_reg(adapter, A_SG_CONTEXT_CMD,
2802 V_CONTEXT_CMD_OPCODE(1) | F_CQ | V_CONTEXT(id));
2803 return t3_wait_op_done(adapter, A_SG_CONTEXT_CMD, F_CONTEXT_CMD_BUSY,
2804 0, SG_CONTEXT_CMD_ATTEMPTS, 1);
2808 * t3_sge_cqcntxt_op - perform an operation on a completion queue context
2809 * @adapter: the adapter
2810 * @id: the context id
2811 * @op: the operation to perform
2812 * @credits: credits to return to the CQ
2814 * Perform the selected operation on an SGE completion queue context.
2815 * The caller is responsible for ensuring only one context operation
2818 * For most operations the function returns the current HW position in
2819 * the completion queue.
2821 int t3_sge_cqcntxt_op(adapter_t *adapter, unsigned int id, unsigned int op,
2822 unsigned int credits)
2826 if (t3_read_reg(adapter, A_SG_CONTEXT_CMD) & F_CONTEXT_CMD_BUSY)
2829 t3_write_reg(adapter, A_SG_CONTEXT_DATA0, credits << 16);
2830 t3_write_reg(adapter, A_SG_CONTEXT_CMD, V_CONTEXT_CMD_OPCODE(op) |
2831 V_CONTEXT(id) | F_CQ);
2832 if (t3_wait_op_done_val(adapter, A_SG_CONTEXT_CMD, F_CONTEXT_CMD_BUSY,
2833 0, SG_CONTEXT_CMD_ATTEMPTS, 1, &val))
2836 if (op >= 2 && op < 7) {
2837 if (adapter->params.rev > 0)
2838 return G_CQ_INDEX(val);
2840 t3_write_reg(adapter, A_SG_CONTEXT_CMD,
2841 V_CONTEXT_CMD_OPCODE(0) | F_CQ | V_CONTEXT(id));
2842 if (t3_wait_op_done(adapter, A_SG_CONTEXT_CMD,
2843 F_CONTEXT_CMD_BUSY, 0,
2844 SG_CONTEXT_CMD_ATTEMPTS, 1))
2846 return G_CQ_INDEX(t3_read_reg(adapter, A_SG_CONTEXT_DATA0));
2852 * t3_sge_read_context - read an SGE context
2853 * @type: the context type
2854 * @adapter: the adapter
2855 * @id: the context id
2856 * @data: holds the retrieved context
2858 * Read an SGE egress context. The caller is responsible for ensuring
2859 * only one context operation occurs at a time.
2861 static int t3_sge_read_context(unsigned int type, adapter_t *adapter,
2862 unsigned int id, u32 data[4])
2864 if (t3_read_reg(adapter, A_SG_CONTEXT_CMD) & F_CONTEXT_CMD_BUSY)
2867 t3_write_reg(adapter, A_SG_CONTEXT_CMD,
2868 V_CONTEXT_CMD_OPCODE(0) | type | V_CONTEXT(id));
2869 if (t3_wait_op_done(adapter, A_SG_CONTEXT_CMD, F_CONTEXT_CMD_BUSY, 0,
2870 SG_CONTEXT_CMD_ATTEMPTS, 1))
2872 data[0] = t3_read_reg(adapter, A_SG_CONTEXT_DATA0);
2873 data[1] = t3_read_reg(adapter, A_SG_CONTEXT_DATA1);
2874 data[2] = t3_read_reg(adapter, A_SG_CONTEXT_DATA2);
2875 data[3] = t3_read_reg(adapter, A_SG_CONTEXT_DATA3);
2880 * t3_sge_read_ecntxt - read an SGE egress context
2881 * @adapter: the adapter
2882 * @id: the context id
2883 * @data: holds the retrieved context
2885 * Read an SGE egress context. The caller is responsible for ensuring
2886 * only one context operation occurs at a time.
2888 int t3_sge_read_ecntxt(adapter_t *adapter, unsigned int id, u32 data[4])
2892 return t3_sge_read_context(F_EGRESS, adapter, id, data);
2896 * t3_sge_read_cq - read an SGE CQ context
2897 * @adapter: the adapter
2898 * @id: the context id
2899 * @data: holds the retrieved context
2901 * Read an SGE CQ context. The caller is responsible for ensuring
2902 * only one context operation occurs at a time.
2904 int t3_sge_read_cq(adapter_t *adapter, unsigned int id, u32 data[4])
2908 return t3_sge_read_context(F_CQ, adapter, id, data);
2912 * t3_sge_read_fl - read an SGE free-list context
2913 * @adapter: the adapter
2914 * @id: the context id
2915 * @data: holds the retrieved context
2917 * Read an SGE free-list context. The caller is responsible for ensuring
2918 * only one context operation occurs at a time.
2920 int t3_sge_read_fl(adapter_t *adapter, unsigned int id, u32 data[4])
2922 if (id >= SGE_QSETS * 2)
2924 return t3_sge_read_context(F_FREELIST, adapter, id, data);
2928 * t3_sge_read_rspq - read an SGE response queue context
2929 * @adapter: the adapter
2930 * @id: the context id
2931 * @data: holds the retrieved context
2933 * Read an SGE response queue context. The caller is responsible for
2934 * ensuring only one context operation occurs at a time.
2936 int t3_sge_read_rspq(adapter_t *adapter, unsigned int id, u32 data[4])
2938 if (id >= SGE_QSETS)
2940 return t3_sge_read_context(F_RESPONSEQ, adapter, id, data);
2944 * t3_config_rss - configure Rx packet steering
2945 * @adapter: the adapter
2946 * @rss_config: RSS settings (written to TP_RSS_CONFIG)
2947 * @cpus: values for the CPU lookup table (0xff terminated)
2948 * @rspq: values for the response queue lookup table (0xffff terminated)
2950 * Programs the receive packet steering logic. @cpus and @rspq provide
2951 * the values for the CPU and response queue lookup tables. If they
2952 * provide fewer values than the size of the tables the supplied values
2953 * are used repeatedly until the tables are fully populated.
2955 void t3_config_rss(adapter_t *adapter, unsigned int rss_config, const u8 *cpus,
2958 int i, j, cpu_idx = 0, q_idx = 0;
2961 for (i = 0; i < RSS_TABLE_SIZE; ++i) {
2964 for (j = 0; j < 2; ++j) {
2965 val |= (cpus[cpu_idx++] & 0x3f) << (8 * j);
2966 if (cpus[cpu_idx] == 0xff)
2969 t3_write_reg(adapter, A_TP_RSS_LKP_TABLE, val);
2973 for (i = 0; i < RSS_TABLE_SIZE; ++i) {
2974 t3_write_reg(adapter, A_TP_RSS_MAP_TABLE,
2975 (i << 16) | rspq[q_idx++]);
2976 if (rspq[q_idx] == 0xffff)
2980 t3_write_reg(adapter, A_TP_RSS_CONFIG, rss_config);
2984 * t3_read_rss - read the contents of the RSS tables
2985 * @adapter: the adapter
2986 * @lkup: holds the contents of the RSS lookup table
2987 * @map: holds the contents of the RSS map table
2989 * Reads the contents of the receive packet steering tables.
2991 int t3_read_rss(adapter_t *adapter, u8 *lkup, u16 *map)
2997 for (i = 0; i < RSS_TABLE_SIZE; ++i) {
2998 t3_write_reg(adapter, A_TP_RSS_LKP_TABLE,
3000 val = t3_read_reg(adapter, A_TP_RSS_LKP_TABLE);
3001 if (!(val & 0x80000000))
3004 *lkup++ = (u8)(val >> 8);
3008 for (i = 0; i < RSS_TABLE_SIZE; ++i) {
3009 t3_write_reg(adapter, A_TP_RSS_MAP_TABLE,
3011 val = t3_read_reg(adapter, A_TP_RSS_MAP_TABLE);
3012 if (!(val & 0x80000000))
3020 * t3_tp_set_offload_mode - put TP in NIC/offload mode
3021 * @adap: the adapter
3022 * @enable: 1 to select offload mode, 0 for regular NIC
3024 * Switches TP to NIC/offload mode.
3026 void t3_tp_set_offload_mode(adapter_t *adap, int enable)
3028 if (is_offload(adap) || !enable)
3029 t3_set_reg_field(adap, A_TP_IN_CONFIG, F_NICMODE,
3030 V_NICMODE(!enable));
3034 * tp_wr_bits_indirect - set/clear bits in an indirect TP register
3035 * @adap: the adapter
3036 * @addr: the indirect TP register address
3037 * @mask: specifies the field within the register to modify
3038 * @val: new value for the field
3040 * Sets a field of an indirect TP register to the given value.
3042 static void tp_wr_bits_indirect(adapter_t *adap, unsigned int addr,
3043 unsigned int mask, unsigned int val)
3045 t3_write_reg(adap, A_TP_PIO_ADDR, addr);
3046 val |= t3_read_reg(adap, A_TP_PIO_DATA) & ~mask;
3047 t3_write_reg(adap, A_TP_PIO_DATA, val);
3051 * t3_enable_filters - enable the HW filters
3052 * @adap: the adapter
3054 * Enables the HW filters for NIC traffic.
3056 void t3_enable_filters(adapter_t *adap)
3058 t3_set_reg_field(adap, A_TP_IN_CONFIG, F_NICMODE, 0);
3059 t3_set_reg_field(adap, A_MC5_DB_CONFIG, 0, F_FILTEREN);
3060 t3_set_reg_field(adap, A_TP_GLOBAL_CONFIG, 0, V_FIVETUPLELOOKUP(3));
3061 tp_wr_bits_indirect(adap, A_TP_INGRESS_CONFIG, 0, F_LOOKUPEVERYPKT);
3065 * t3_disable_filters - disable the HW filters
3066 * @adap: the adapter
3068 * Disables the HW filters for NIC traffic.
3070 void t3_disable_filters(adapter_t *adap)
3072 /* note that we don't want to revert to NIC-only mode */
3073 t3_set_reg_field(adap, A_MC5_DB_CONFIG, F_FILTEREN, 0);
3074 t3_set_reg_field(adap, A_TP_GLOBAL_CONFIG,
3075 V_FIVETUPLELOOKUP(M_FIVETUPLELOOKUP), 0);
3076 tp_wr_bits_indirect(adap, A_TP_INGRESS_CONFIG, F_LOOKUPEVERYPKT, 0);
3080 * pm_num_pages - calculate the number of pages of the payload memory
3081 * @mem_size: the size of the payload memory
3082 * @pg_size: the size of each payload memory page
3084 * Calculate the number of pages, each of the given size, that fit in a
3085 * memory of the specified size, respecting the HW requirement that the
3086 * number of pages must be a multiple of 24.
3088 static inline unsigned int pm_num_pages(unsigned int mem_size,
3089 unsigned int pg_size)
3091 unsigned int n = mem_size / pg_size;
3096 #define mem_region(adap, start, size, reg) \
3097 t3_write_reg((adap), A_ ## reg, (start)); \
3101 * partition_mem - partition memory and configure TP memory settings
3102 * @adap: the adapter
3103 * @p: the TP parameters
3105 * Partitions context and payload memory and configures TP's memory
3108 static void partition_mem(adapter_t *adap, const struct tp_params *p)
3110 unsigned int m, pstructs, tids = t3_mc5_size(&adap->mc5);
3111 unsigned int timers = 0, timers_shift = 22;
3113 if (adap->params.rev > 0) {
3114 if (tids <= 16 * 1024) {
3117 } else if (tids <= 64 * 1024) {
3120 } else if (tids <= 256 * 1024) {
3126 t3_write_reg(adap, A_TP_PMM_SIZE,
3127 p->chan_rx_size | (p->chan_tx_size >> 16));
3129 t3_write_reg(adap, A_TP_PMM_TX_BASE, 0);
3130 t3_write_reg(adap, A_TP_PMM_TX_PAGE_SIZE, p->tx_pg_size);
3131 t3_write_reg(adap, A_TP_PMM_TX_MAX_PAGE, p->tx_num_pgs);
3132 t3_set_reg_field(adap, A_TP_PARA_REG3, V_TXDATAACKIDX(M_TXDATAACKIDX),
3133 V_TXDATAACKIDX(fls(p->tx_pg_size) - 12));
3135 t3_write_reg(adap, A_TP_PMM_RX_BASE, 0);
3136 t3_write_reg(adap, A_TP_PMM_RX_PAGE_SIZE, p->rx_pg_size);
3137 t3_write_reg(adap, A_TP_PMM_RX_MAX_PAGE, p->rx_num_pgs);
3139 pstructs = p->rx_num_pgs + p->tx_num_pgs;
3140 /* Add a bit of headroom and make multiple of 24 */
3142 pstructs -= pstructs % 24;
3143 t3_write_reg(adap, A_TP_CMM_MM_MAX_PSTRUCT, pstructs);
3145 m = tids * TCB_SIZE;
3146 mem_region(adap, m, (64 << 10) * 64, SG_EGR_CNTX_BADDR);
3147 mem_region(adap, m, (64 << 10) * 64, SG_CQ_CONTEXT_BADDR);
3148 t3_write_reg(adap, A_TP_CMM_TIMER_BASE, V_CMTIMERMAXNUM(timers) | m);
3149 m += ((p->ntimer_qs - 1) << timers_shift) + (1 << 22);
3150 mem_region(adap, m, pstructs * 64, TP_CMM_MM_BASE);
3151 mem_region(adap, m, 64 * (pstructs / 24), TP_CMM_MM_PS_FLST_BASE);
3152 mem_region(adap, m, 64 * (p->rx_num_pgs / 24), TP_CMM_MM_RX_FLST_BASE);
3153 mem_region(adap, m, 64 * (p->tx_num_pgs / 24), TP_CMM_MM_TX_FLST_BASE);
3155 m = (m + 4095) & ~0xfff;
3156 t3_write_reg(adap, A_CIM_SDRAM_BASE_ADDR, m);
3157 t3_write_reg(adap, A_CIM_SDRAM_ADDR_SIZE, p->cm_size - m);
3159 tids = (p->cm_size - m - (3 << 20)) / 3072 - 32;
3160 m = t3_mc5_size(&adap->mc5) - adap->params.mc5.nservers -
3161 adap->params.mc5.nfilters - adap->params.mc5.nroutes;
3163 adap->params.mc5.nservers += m - tids;
3166 static inline void tp_wr_indirect(adapter_t *adap, unsigned int addr, u32 val)
3168 t3_write_reg(adap, A_TP_PIO_ADDR, addr);
3169 t3_write_reg(adap, A_TP_PIO_DATA, val);
3172 static inline u32 tp_rd_indirect(adapter_t *adap, unsigned int addr)
3174 t3_write_reg(adap, A_TP_PIO_ADDR, addr);
3175 return t3_read_reg(adap, A_TP_PIO_DATA);
3178 static void tp_config(adapter_t *adap, const struct tp_params *p)
3180 t3_write_reg(adap, A_TP_GLOBAL_CONFIG, F_TXPACINGENABLE | F_PATHMTU |
3181 F_IPCHECKSUMOFFLOAD | F_UDPCHECKSUMOFFLOAD |
3182 F_TCPCHECKSUMOFFLOAD | V_IPTTL(64));
3183 t3_write_reg(adap, A_TP_TCP_OPTIONS, V_MTUDEFAULT(576) |
3184 F_MTUENABLE | V_WINDOWSCALEMODE(1) |
3185 V_TIMESTAMPSMODE(1) | V_SACKMODE(1) | V_SACKRX(1));
3186 t3_write_reg(adap, A_TP_DACK_CONFIG, V_AUTOSTATE3(1) |
3187 V_AUTOSTATE2(1) | V_AUTOSTATE1(0) |
3188 V_BYTETHRESHOLD(26880) | V_MSSTHRESHOLD(2) |
3189 F_AUTOCAREFUL | F_AUTOENABLE | V_DACK_MODE(1));
3190 t3_set_reg_field(adap, A_TP_IN_CONFIG, F_RXFBARBPRIO | F_TXFBARBPRIO,
3191 F_IPV6ENABLE | F_NICMODE);
3192 t3_write_reg(adap, A_TP_TX_RESOURCE_LIMIT, 0x18141814);
3193 t3_write_reg(adap, A_TP_PARA_REG4, 0x5050105);
3194 t3_set_reg_field(adap, A_TP_PARA_REG6, 0,
3195 adap->params.rev > 0 ? F_ENABLEESND :
3197 t3_set_reg_field(adap, A_TP_PC_CONFIG,
3199 F_ENABLEOCSPIFULL |F_TXDEFERENABLE | F_HEARBEATDACK |
3200 F_TXCONGESTIONMODE | F_RXCONGESTIONMODE);
3201 t3_set_reg_field(adap, A_TP_PC_CONFIG2, F_CHDRAFULL,
3202 F_ENABLEIPV6RSS | F_ENABLENONOFDTNLSYN |
3203 F_ENABLEARPMISS | F_DISBLEDAPARBIT0);
3204 t3_write_reg(adap, A_TP_PROXY_FLOW_CNTL, 1080);
3205 t3_write_reg(adap, A_TP_PROXY_FLOW_CNTL, 1000);
3207 if (adap->params.rev > 0) {
3208 tp_wr_indirect(adap, A_TP_EGRESS_CONFIG, F_REWRITEFORCETOSIZE);
3209 t3_set_reg_field(adap, A_TP_PARA_REG3, 0,
3210 F_TXPACEAUTO | F_TXPACEAUTOSTRICT);
3211 t3_set_reg_field(adap, A_TP_PC_CONFIG, F_LOCKTID, F_LOCKTID);
3212 tp_wr_indirect(adap, A_TP_VLAN_PRI_MAP, 0xfa50);
3213 tp_wr_indirect(adap, A_TP_MAC_MATCH_MAP0, 0xfac688);
3214 tp_wr_indirect(adap, A_TP_MAC_MATCH_MAP1, 0xfac688);
3216 t3_set_reg_field(adap, A_TP_PARA_REG3, 0, F_TXPACEFIXED);
3218 if (adap->params.rev == T3_REV_C)
3219 t3_set_reg_field(adap, A_TP_PC_CONFIG,
3220 V_TABLELATENCYDELTA(M_TABLELATENCYDELTA),
3221 V_TABLELATENCYDELTA(4));
3223 t3_write_reg(adap, A_TP_TX_MOD_QUEUE_WEIGHT1, 0);
3224 t3_write_reg(adap, A_TP_TX_MOD_QUEUE_WEIGHT0, 0);
3225 t3_write_reg(adap, A_TP_MOD_CHANNEL_WEIGHT, 0);
3226 t3_write_reg(adap, A_TP_MOD_RATE_LIMIT, 0xf2200000);
3228 if (adap->params.nports > 2) {
3229 t3_set_reg_field(adap, A_TP_PC_CONFIG2, 0,
3230 F_ENABLETXPORTFROMDA2 | F_ENABLETXPORTFROMDA |
3231 F_ENABLERXPORTFROMADDR);
3232 tp_wr_bits_indirect(adap, A_TP_QOS_RX_MAP_MODE,
3233 V_RXMAPMODE(M_RXMAPMODE), 0);
3234 tp_wr_indirect(adap, A_TP_INGRESS_CONFIG, V_BITPOS0(48) |
3235 V_BITPOS1(49) | V_BITPOS2(50) | V_BITPOS3(51) |
3236 F_ENABLEEXTRACT | F_ENABLEEXTRACTIONSFD |
3237 F_ENABLEINSERTION | F_ENABLEINSERTIONSFD);
3238 tp_wr_indirect(adap, A_TP_PREAMBLE_MSB, 0xfb000000);
3239 tp_wr_indirect(adap, A_TP_PREAMBLE_LSB, 0xd5);
3240 tp_wr_indirect(adap, A_TP_INTF_FROM_TX_PKT, F_INTFFROMTXPKT);
3244 /* TCP timer values in ms */
3245 #define TP_DACK_TIMER 50
3246 #define TP_RTO_MIN 250
3249 * tp_set_timers - set TP timing parameters
3250 * @adap: the adapter to set
3251 * @core_clk: the core clock frequency in Hz
3253 * Set TP's timing parameters, such as the various timer resolutions and
3254 * the TCP timer values.
3256 static void tp_set_timers(adapter_t *adap, unsigned int core_clk)
3258 unsigned int tre = adap->params.tp.tre;
3259 unsigned int dack_re = adap->params.tp.dack_re;
3260 unsigned int tstamp_re = fls(core_clk / 1000); /* 1ms, at least */
3261 unsigned int tps = core_clk >> tre;
3263 t3_write_reg(adap, A_TP_TIMER_RESOLUTION, V_TIMERRESOLUTION(tre) |
3264 V_DELAYEDACKRESOLUTION(dack_re) |
3265 V_TIMESTAMPRESOLUTION(tstamp_re));
3266 t3_write_reg(adap, A_TP_DACK_TIMER,
3267 (core_clk >> dack_re) / (1000 / TP_DACK_TIMER));
3268 t3_write_reg(adap, A_TP_TCP_BACKOFF_REG0, 0x3020100);
3269 t3_write_reg(adap, A_TP_TCP_BACKOFF_REG1, 0x7060504);
3270 t3_write_reg(adap, A_TP_TCP_BACKOFF_REG2, 0xb0a0908);
3271 t3_write_reg(adap, A_TP_TCP_BACKOFF_REG3, 0xf0e0d0c);
3272 t3_write_reg(adap, A_TP_SHIFT_CNT, V_SYNSHIFTMAX(6) |
3273 V_RXTSHIFTMAXR1(4) | V_RXTSHIFTMAXR2(15) |
3274 V_PERSHIFTBACKOFFMAX(8) | V_PERSHIFTMAX(8) |
3277 #define SECONDS * tps
3279 t3_write_reg(adap, A_TP_MSL,
3280 adap->params.rev > 0 ? 0 : 2 SECONDS);
3281 t3_write_reg(adap, A_TP_RXT_MIN, tps / (1000 / TP_RTO_MIN));
3282 t3_write_reg(adap, A_TP_RXT_MAX, 64 SECONDS);
3283 t3_write_reg(adap, A_TP_PERS_MIN, 5 SECONDS);
3284 t3_write_reg(adap, A_TP_PERS_MAX, 64 SECONDS);
3285 t3_write_reg(adap, A_TP_KEEP_IDLE, 7200 SECONDS);
3286 t3_write_reg(adap, A_TP_KEEP_INTVL, 75 SECONDS);
3287 t3_write_reg(adap, A_TP_INIT_SRTT, 3 SECONDS);
3288 t3_write_reg(adap, A_TP_FINWAIT2_TIMER, 600 SECONDS);
3294 * t3_tp_set_coalescing_size - set receive coalescing size
3295 * @adap: the adapter
3296 * @size: the receive coalescing size
3297 * @psh: whether a set PSH bit should deliver coalesced data
3299 * Set the receive coalescing size and PSH bit handling.
3301 int t3_tp_set_coalescing_size(adapter_t *adap, unsigned int size, int psh)
3305 if (size > MAX_RX_COALESCING_LEN)
3308 val = t3_read_reg(adap, A_TP_PARA_REG3);
3309 val &= ~(F_RXCOALESCEENABLE | F_RXCOALESCEPSHEN);
3312 val |= F_RXCOALESCEENABLE;
3314 val |= F_RXCOALESCEPSHEN;
3315 size = min(MAX_RX_COALESCING_LEN, size);
3316 t3_write_reg(adap, A_TP_PARA_REG2, V_RXCOALESCESIZE(size) |
3317 V_MAXRXDATA(MAX_RX_COALESCING_LEN));
3319 t3_write_reg(adap, A_TP_PARA_REG3, val);
3324 * t3_tp_set_max_rxsize - set the max receive size
3325 * @adap: the adapter
3326 * @size: the max receive size
3328 * Set TP's max receive size. This is the limit that applies when
3329 * receive coalescing is disabled.
3331 void t3_tp_set_max_rxsize(adapter_t *adap, unsigned int size)
3333 t3_write_reg(adap, A_TP_PARA_REG7,
3334 V_PMMAXXFERLEN0(size) | V_PMMAXXFERLEN1(size));
3337 static void __devinit init_mtus(unsigned short mtus[])
3340 * See draft-mathis-plpmtud-00.txt for the values. The min is 88 so
3341 * it can accomodate max size TCP/IP headers when SACK and timestamps
3342 * are enabled and still have at least 8 bytes of payload.
3363 * init_cong_ctrl - initialize congestion control parameters
3364 * @a: the alpha values for congestion control
3365 * @b: the beta values for congestion control
3367 * Initialize the congestion control parameters.
3369 static void __devinit init_cong_ctrl(unsigned short *a, unsigned short *b)
3371 a[0] = a[1] = a[2] = a[3] = a[4] = a[5] = a[6] = a[7] = a[8] = 1;
3396 b[0] = b[1] = b[2] = b[3] = b[4] = b[5] = b[6] = b[7] = b[8] = 0;
3399 b[13] = b[14] = b[15] = b[16] = 3;
3400 b[17] = b[18] = b[19] = b[20] = b[21] = 4;
3401 b[22] = b[23] = b[24] = b[25] = b[26] = b[27] = 5;
3406 /* The minimum additive increment value for the congestion control table */
3407 #define CC_MIN_INCR 2U
3410 * t3_load_mtus - write the MTU and congestion control HW tables
3411 * @adap: the adapter
3412 * @mtus: the unrestricted values for the MTU table
3413 * @alpha: the values for the congestion control alpha parameter
3414 * @beta: the values for the congestion control beta parameter
3415 * @mtu_cap: the maximum permitted effective MTU
3417 * Write the MTU table with the supplied MTUs capping each at &mtu_cap.
3418 * Update the high-speed congestion control table with the supplied alpha,
3421 void t3_load_mtus(adapter_t *adap, unsigned short mtus[NMTUS],
3422 unsigned short alpha[NCCTRL_WIN],
3423 unsigned short beta[NCCTRL_WIN], unsigned short mtu_cap)
3425 static const unsigned int avg_pkts[NCCTRL_WIN] = {
3426 2, 6, 10, 14, 20, 28, 40, 56, 80, 112, 160, 224, 320, 448, 640,
3427 896, 1281, 1792, 2560, 3584, 5120, 7168, 10240, 14336, 20480,
3428 28672, 40960, 57344, 81920, 114688, 163840, 229376 };
3432 for (i = 0; i < NMTUS; ++i) {
3433 unsigned int mtu = min(mtus[i], mtu_cap);
3434 unsigned int log2 = fls(mtu);
3436 if (!(mtu & ((1 << log2) >> 2))) /* round */
3438 t3_write_reg(adap, A_TP_MTU_TABLE,
3439 (i << 24) | (log2 << 16) | mtu);
3441 for (w = 0; w < NCCTRL_WIN; ++w) {
3444 inc = max(((mtu - 40) * alpha[w]) / avg_pkts[w],
3447 t3_write_reg(adap, A_TP_CCTRL_TABLE, (i << 21) |
3448 (w << 16) | (beta[w] << 13) | inc);
3454 * t3_read_hw_mtus - returns the values in the HW MTU table
3455 * @adap: the adapter
3456 * @mtus: where to store the HW MTU values
3458 * Reads the HW MTU table.
3460 void t3_read_hw_mtus(adapter_t *adap, unsigned short mtus[NMTUS])
3464 for (i = 0; i < NMTUS; ++i) {
3467 t3_write_reg(adap, A_TP_MTU_TABLE, 0xff000000 | i);
3468 val = t3_read_reg(adap, A_TP_MTU_TABLE);
3469 mtus[i] = val & 0x3fff;
3474 * t3_get_cong_cntl_tab - reads the congestion control table
3475 * @adap: the adapter
3476 * @incr: where to store the alpha values
3478 * Reads the additive increments programmed into the HW congestion
3481 void t3_get_cong_cntl_tab(adapter_t *adap,
3482 unsigned short incr[NMTUS][NCCTRL_WIN])
3484 unsigned int mtu, w;
3486 for (mtu = 0; mtu < NMTUS; ++mtu)
3487 for (w = 0; w < NCCTRL_WIN; ++w) {
3488 t3_write_reg(adap, A_TP_CCTRL_TABLE,
3489 0xffff0000 | (mtu << 5) | w);
3490 incr[mtu][w] = (unsigned short)t3_read_reg(adap,
3491 A_TP_CCTRL_TABLE) & 0x1fff;
3496 * t3_tp_get_mib_stats - read TP's MIB counters
3497 * @adap: the adapter
3498 * @tps: holds the returned counter values
3500 * Returns the values of TP's MIB counters.
3502 void t3_tp_get_mib_stats(adapter_t *adap, struct tp_mib_stats *tps)
3504 t3_read_indirect(adap, A_TP_MIB_INDEX, A_TP_MIB_RDATA, (u32 *)tps,
3505 sizeof(*tps) / sizeof(u32), 0);
3509 * t3_read_pace_tbl - read the pace table
3510 * @adap: the adapter
3511 * @pace_vals: holds the returned values
3513 * Returns the values of TP's pace table in nanoseconds.
3515 void t3_read_pace_tbl(adapter_t *adap, unsigned int pace_vals[NTX_SCHED])
3517 unsigned int i, tick_ns = dack_ticks_to_usec(adap, 1000);
3519 for (i = 0; i < NTX_SCHED; i++) {
3520 t3_write_reg(adap, A_TP_PACE_TABLE, 0xffff0000 + i);
3521 pace_vals[i] = t3_read_reg(adap, A_TP_PACE_TABLE) * tick_ns;
3526 * t3_set_pace_tbl - set the pace table
3527 * @adap: the adapter
3528 * @pace_vals: the pace values in nanoseconds
3529 * @start: index of the first entry in the HW pace table to set
3530 * @n: how many entries to set
3532 * Sets (a subset of the) HW pace table.
3534 void t3_set_pace_tbl(adapter_t *adap, unsigned int *pace_vals,
3535 unsigned int start, unsigned int n)
3537 unsigned int tick_ns = dack_ticks_to_usec(adap, 1000);
3539 for ( ; n; n--, start++, pace_vals++)
3540 t3_write_reg(adap, A_TP_PACE_TABLE, (start << 16) |
3541 ((*pace_vals + tick_ns / 2) / tick_ns));
3544 #define ulp_region(adap, name, start, len) \
3545 t3_write_reg((adap), A_ULPRX_ ## name ## _LLIMIT, (start)); \
3546 t3_write_reg((adap), A_ULPRX_ ## name ## _ULIMIT, \
3547 (start) + (len) - 1); \
3550 #define ulptx_region(adap, name, start, len) \
3551 t3_write_reg((adap), A_ULPTX_ ## name ## _LLIMIT, (start)); \
3552 t3_write_reg((adap), A_ULPTX_ ## name ## _ULIMIT, \
3553 (start) + (len) - 1)
3555 static void ulp_config(adapter_t *adap, const struct tp_params *p)
3557 unsigned int m = p->chan_rx_size;
3559 ulp_region(adap, ISCSI, m, p->chan_rx_size / 8);
3560 ulp_region(adap, TDDP, m, p->chan_rx_size / 8);
3561 ulptx_region(adap, TPT, m, p->chan_rx_size / 4);
3562 ulp_region(adap, STAG, m, p->chan_rx_size / 4);
3563 ulp_region(adap, RQ, m, p->chan_rx_size / 4);
3564 ulptx_region(adap, PBL, m, p->chan_rx_size / 4);
3565 ulp_region(adap, PBL, m, p->chan_rx_size / 4);
3566 t3_write_reg(adap, A_ULPRX_TDDP_TAGMASK, 0xffffffff);
3571 * t3_set_proto_sram - set the contents of the protocol sram
3572 * @adapter: the adapter
3573 * @data: the protocol image
3575 * Write the contents of the protocol SRAM.
3577 int t3_set_proto_sram(adapter_t *adap, const u8 *data)
3580 const u32 *buf = (const u32 *)data;
3582 for (i = 0; i < PROTO_SRAM_LINES; i++) {
3583 t3_write_reg(adap, A_TP_EMBED_OP_FIELD5, cpu_to_be32(*buf++));
3584 t3_write_reg(adap, A_TP_EMBED_OP_FIELD4, cpu_to_be32(*buf++));
3585 t3_write_reg(adap, A_TP_EMBED_OP_FIELD3, cpu_to_be32(*buf++));
3586 t3_write_reg(adap, A_TP_EMBED_OP_FIELD2, cpu_to_be32(*buf++));
3587 t3_write_reg(adap, A_TP_EMBED_OP_FIELD1, cpu_to_be32(*buf++));
3589 t3_write_reg(adap, A_TP_EMBED_OP_FIELD0, i << 1 | 1 << 31);
3590 if (t3_wait_op_done(adap, A_TP_EMBED_OP_FIELD0, 1, 1, 5, 1))
3597 * t3_config_trace_filter - configure one of the tracing filters
3598 * @adapter: the adapter
3599 * @tp: the desired trace filter parameters
3600 * @filter_index: which filter to configure
3601 * @invert: if set non-matching packets are traced instead of matching ones
3602 * @enable: whether to enable or disable the filter
3604 * Configures one of the tracing filters available in HW.
3606 void t3_config_trace_filter(adapter_t *adapter, const struct trace_params *tp,
3607 int filter_index, int invert, int enable)
3609 u32 addr, key[4], mask[4];
3611 key[0] = tp->sport | (tp->sip << 16);
3612 key[1] = (tp->sip >> 16) | (tp->dport << 16);
3614 key[3] = tp->proto | (tp->vlan << 8) | (tp->intf << 20);
3616 mask[0] = tp->sport_mask | (tp->sip_mask << 16);
3617 mask[1] = (tp->sip_mask >> 16) | (tp->dport_mask << 16);
3618 mask[2] = tp->dip_mask;
3619 mask[3] = tp->proto_mask | (tp->vlan_mask << 8) | (tp->intf_mask << 20);
3622 key[3] |= (1 << 29);
3624 key[3] |= (1 << 28);
3626 addr = filter_index ? A_TP_RX_TRC_KEY0 : A_TP_TX_TRC_KEY0;
3627 tp_wr_indirect(adapter, addr++, key[0]);
3628 tp_wr_indirect(adapter, addr++, mask[0]);
3629 tp_wr_indirect(adapter, addr++, key[1]);
3630 tp_wr_indirect(adapter, addr++, mask[1]);
3631 tp_wr_indirect(adapter, addr++, key[2]);
3632 tp_wr_indirect(adapter, addr++, mask[2]);
3633 tp_wr_indirect(adapter, addr++, key[3]);
3634 tp_wr_indirect(adapter, addr, mask[3]);
3635 (void) t3_read_reg(adapter, A_TP_PIO_DATA);
3639 * t3_query_trace_filter - query a tracing filter
3640 * @adapter: the adapter
3641 * @tp: the current trace filter parameters
3642 * @filter_index: which filter to query
3643 * @inverted: non-zero if the filter is inverted
3644 * @enabled: non-zero if the filter is enabled
3646 * Returns the current settings of the specified HW tracing filter.
3648 void t3_query_trace_filter(adapter_t *adapter, struct trace_params *tp,
3649 int filter_index, int *inverted, int *enabled)
3651 u32 addr, key[4], mask[4];
3653 addr = filter_index ? A_TP_RX_TRC_KEY0 : A_TP_TX_TRC_KEY0;
3654 key[0] = tp_rd_indirect(adapter, addr++);
3655 mask[0] = tp_rd_indirect(adapter, addr++);
3656 key[1] = tp_rd_indirect(adapter, addr++);
3657 mask[1] = tp_rd_indirect(adapter, addr++);
3658 key[2] = tp_rd_indirect(adapter, addr++);
3659 mask[2] = tp_rd_indirect(adapter, addr++);
3660 key[3] = tp_rd_indirect(adapter, addr++);
3661 mask[3] = tp_rd_indirect(adapter, addr);
3663 tp->sport = key[0] & 0xffff;
3664 tp->sip = (key[0] >> 16) | ((key[1] & 0xffff) << 16);
3665 tp->dport = key[1] >> 16;
3667 tp->proto = key[3] & 0xff;
3668 tp->vlan = key[3] >> 8;
3669 tp->intf = key[3] >> 20;
3671 tp->sport_mask = mask[0] & 0xffff;
3672 tp->sip_mask = (mask[0] >> 16) | ((mask[1] & 0xffff) << 16);
3673 tp->dport_mask = mask[1] >> 16;
3674 tp->dip_mask = mask[2];
3675 tp->proto_mask = mask[3] & 0xff;
3676 tp->vlan_mask = mask[3] >> 8;
3677 tp->intf_mask = mask[3] >> 20;
3679 *inverted = key[3] & (1 << 29);
3680 *enabled = key[3] & (1 << 28);
3684 * t3_config_sched - configure a HW traffic scheduler
3685 * @adap: the adapter
3686 * @kbps: target rate in Kbps
3687 * @sched: the scheduler index
3689 * Configure a Tx HW scheduler for the target rate.
3691 int t3_config_sched(adapter_t *adap, unsigned int kbps, int sched)
3693 unsigned int v, tps, cpt, bpt, delta, mindelta = ~0;
3694 unsigned int clk = adap->params.vpd.cclk * 1000;
3695 unsigned int selected_cpt = 0, selected_bpt = 0;
3698 kbps *= 125; /* -> bytes */
3699 for (cpt = 1; cpt <= 255; cpt++) {
3701 bpt = (kbps + tps / 2) / tps;
3702 if (bpt > 0 && bpt <= 255) {
3704 delta = v >= kbps ? v - kbps : kbps - v;
3705 if (delta < mindelta) {
3710 } else if (selected_cpt)
3716 t3_write_reg(adap, A_TP_TM_PIO_ADDR,
3717 A_TP_TX_MOD_Q1_Q0_RATE_LIMIT - sched / 2);
3718 v = t3_read_reg(adap, A_TP_TM_PIO_DATA);
3720 v = (v & 0xffff) | (selected_cpt << 16) | (selected_bpt << 24);
3722 v = (v & 0xffff0000) | selected_cpt | (selected_bpt << 8);
3723 t3_write_reg(adap, A_TP_TM_PIO_DATA, v);
3728 * t3_set_sched_ipg - set the IPG for a Tx HW packet rate scheduler
3729 * @adap: the adapter
3730 * @sched: the scheduler index
3731 * @ipg: the interpacket delay in tenths of nanoseconds
3733 * Set the interpacket delay for a HW packet rate scheduler.
3735 int t3_set_sched_ipg(adapter_t *adap, int sched, unsigned int ipg)
3737 unsigned int v, addr = A_TP_TX_MOD_Q1_Q0_TIMER_SEPARATOR - sched / 2;
3739 /* convert ipg to nearest number of core clocks */
3740 ipg *= core_ticks_per_usec(adap);
3741 ipg = (ipg + 5000) / 10000;
3745 t3_write_reg(adap, A_TP_TM_PIO_ADDR, addr);
3746 v = t3_read_reg(adap, A_TP_TM_PIO_DATA);
3748 v = (v & 0xffff) | (ipg << 16);
3750 v = (v & 0xffff0000) | ipg;
3751 t3_write_reg(adap, A_TP_TM_PIO_DATA, v);
3752 t3_read_reg(adap, A_TP_TM_PIO_DATA);
3757 * t3_get_tx_sched - get the configuration of a Tx HW traffic scheduler
3758 * @adap: the adapter
3759 * @sched: the scheduler index
3760 * @kbps: the byte rate in Kbps
3761 * @ipg: the interpacket delay in tenths of nanoseconds
3763 * Return the current configuration of a HW Tx scheduler.
3765 void t3_get_tx_sched(adapter_t *adap, unsigned int sched, unsigned int *kbps,
3768 unsigned int v, addr, bpt, cpt;
3771 addr = A_TP_TX_MOD_Q1_Q0_RATE_LIMIT - sched / 2;
3772 t3_write_reg(adap, A_TP_TM_PIO_ADDR, addr);
3773 v = t3_read_reg(adap, A_TP_TM_PIO_DATA);
3776 bpt = (v >> 8) & 0xff;
3779 *kbps = 0; /* scheduler disabled */
3781 v = (adap->params.vpd.cclk * 1000) / cpt;
3782 *kbps = (v * bpt) / 125;
3786 addr = A_TP_TX_MOD_Q1_Q0_TIMER_SEPARATOR - sched / 2;
3787 t3_write_reg(adap, A_TP_TM_PIO_ADDR, addr);
3788 v = t3_read_reg(adap, A_TP_TM_PIO_DATA);
3792 *ipg = (10000 * v) / core_ticks_per_usec(adap);
3797 * tp_init - configure TP
3798 * @adap: the adapter
3799 * @p: TP configuration parameters
3801 * Initializes the TP HW module.
3803 static int tp_init(adapter_t *adap, const struct tp_params *p)
3808 t3_set_vlan_accel(adap, 3, 0);
3810 if (is_offload(adap)) {
3811 tp_set_timers(adap, adap->params.vpd.cclk * 1000);
3812 t3_write_reg(adap, A_TP_RESET, F_FLSTINITENABLE);
3813 busy = t3_wait_op_done(adap, A_TP_RESET, F_FLSTINITENABLE,
3816 CH_ERR(adap, "TP initialization timed out\n");
3820 t3_write_reg(adap, A_TP_RESET, F_TPRESET);
3825 * t3_mps_set_active_ports - configure port failover
3826 * @adap: the adapter
3827 * @port_mask: bitmap of active ports
3829 * Sets the active ports according to the supplied bitmap.
3831 int t3_mps_set_active_ports(adapter_t *adap, unsigned int port_mask)
3833 if (port_mask & ~((1 << adap->params.nports) - 1))
3835 t3_set_reg_field(adap, A_MPS_CFG, F_PORT1ACTIVE | F_PORT0ACTIVE,
3836 port_mask << S_PORT0ACTIVE);
3841 * chan_init_hw - channel-dependent HW initialization
3842 * @adap: the adapter
3843 * @chan_map: bitmap of Tx channels being used
3845 * Perform the bits of HW initialization that are dependent on the Tx
3846 * channels being used.
3848 static void chan_init_hw(adapter_t *adap, unsigned int chan_map)
3852 if (chan_map != 3) { /* one channel */
3853 t3_set_reg_field(adap, A_ULPRX_CTL, F_ROUND_ROBIN, 0);
3854 t3_set_reg_field(adap, A_ULPTX_CONFIG, F_CFG_RR_ARB, 0);
3855 t3_write_reg(adap, A_MPS_CFG, F_TPRXPORTEN | F_ENFORCEPKT |
3856 (chan_map == 1 ? F_TPTXPORT0EN | F_PORT0ACTIVE :
3857 F_TPTXPORT1EN | F_PORT1ACTIVE));
3858 t3_write_reg(adap, A_PM1_TX_CFG,
3859 chan_map == 1 ? 0xffffffff : 0);
3861 t3_write_reg(adap, A_TP_TX_MOD_QUEUE_REQ_MAP,
3862 V_TX_MOD_QUEUE_REQ_MAP(0xff));
3863 t3_write_reg(adap, A_TP_TX_MOD_QUE_TABLE, (12 << 16) | 0xd9c8);
3864 t3_write_reg(adap, A_TP_TX_MOD_QUE_TABLE, (13 << 16) | 0xfbea);
3865 } else { /* two channels */
3866 t3_set_reg_field(adap, A_ULPRX_CTL, 0, F_ROUND_ROBIN);
3867 t3_set_reg_field(adap, A_ULPTX_CONFIG, 0, F_CFG_RR_ARB);
3868 t3_write_reg(adap, A_ULPTX_DMA_WEIGHT,
3869 V_D1_WEIGHT(16) | V_D0_WEIGHT(16));
3870 t3_write_reg(adap, A_MPS_CFG, F_TPTXPORT0EN | F_TPTXPORT1EN |
3871 F_TPRXPORTEN | F_PORT0ACTIVE | F_PORT1ACTIVE |
3873 t3_write_reg(adap, A_PM1_TX_CFG, 0x80008000);
3874 t3_set_reg_field(adap, A_TP_PC_CONFIG, 0, F_TXTOSQUEUEMAPMODE);
3875 t3_write_reg(adap, A_TP_TX_MOD_QUEUE_REQ_MAP,
3876 V_TX_MOD_QUEUE_REQ_MAP(0xaa));
3877 for (i = 0; i < 16; i++)
3878 t3_write_reg(adap, A_TP_TX_MOD_QUE_TABLE,
3879 (i << 16) | 0x1010);
3880 t3_write_reg(adap, A_TP_TX_MOD_QUE_TABLE, (12 << 16) | 0xba98);
3881 t3_write_reg(adap, A_TP_TX_MOD_QUE_TABLE, (13 << 16) | 0xfedc);
3885 static int calibrate_xgm(adapter_t *adapter)
3887 if (uses_xaui(adapter)) {
3890 for (i = 0; i < 5; ++i) {
3891 t3_write_reg(adapter, A_XGM_XAUI_IMP, 0);
3892 (void) t3_read_reg(adapter, A_XGM_XAUI_IMP);
3894 v = t3_read_reg(adapter, A_XGM_XAUI_IMP);
3895 if (!(v & (F_XGM_CALFAULT | F_CALBUSY))) {
3896 t3_write_reg(adapter, A_XGM_XAUI_IMP,
3897 V_XAUIIMP(G_CALIMP(v) >> 2));
3901 CH_ERR(adapter, "MAC calibration failed\n");
3904 t3_write_reg(adapter, A_XGM_RGMII_IMP,
3905 V_RGMIIIMPPD(2) | V_RGMIIIMPPU(3));
3906 t3_set_reg_field(adapter, A_XGM_RGMII_IMP, F_XGM_IMPSETUPDATE,
3907 F_XGM_IMPSETUPDATE);
3912 static void calibrate_xgm_t3b(adapter_t *adapter)
3914 if (!uses_xaui(adapter)) {
3915 t3_write_reg(adapter, A_XGM_RGMII_IMP, F_CALRESET |
3916 F_CALUPDATE | V_RGMIIIMPPD(2) | V_RGMIIIMPPU(3));
3917 t3_set_reg_field(adapter, A_XGM_RGMII_IMP, F_CALRESET, 0);
3918 t3_set_reg_field(adapter, A_XGM_RGMII_IMP, 0,
3919 F_XGM_IMPSETUPDATE);
3920 t3_set_reg_field(adapter, A_XGM_RGMII_IMP, F_XGM_IMPSETUPDATE,
3922 t3_set_reg_field(adapter, A_XGM_RGMII_IMP, F_CALUPDATE, 0);
3923 t3_set_reg_field(adapter, A_XGM_RGMII_IMP, 0, F_CALUPDATE);
3927 struct mc7_timing_params {
3928 unsigned char ActToPreDly;
3929 unsigned char ActToRdWrDly;
3930 unsigned char PreCyc;
3931 unsigned char RefCyc[5];
3932 unsigned char BkCyc;
3933 unsigned char WrToRdDly;
3934 unsigned char RdToWrDly;
3938 * Write a value to a register and check that the write completed. These
3939 * writes normally complete in a cycle or two, so one read should suffice.
3940 * The very first read exists to flush the posted write to the device.
3942 static int wrreg_wait(adapter_t *adapter, unsigned int addr, u32 val)
3944 t3_write_reg(adapter, addr, val);
3945 (void) t3_read_reg(adapter, addr); /* flush */
3946 if (!(t3_read_reg(adapter, addr) & F_BUSY))
3948 CH_ERR(adapter, "write to MC7 register 0x%x timed out\n", addr);
3952 static int mc7_init(struct mc7 *mc7, unsigned int mc7_clock, int mem_type)
3954 static const unsigned int mc7_mode[] = {
3955 0x632, 0x642, 0x652, 0x432, 0x442
3957 static const struct mc7_timing_params mc7_timings[] = {
3958 { 12, 3, 4, { 20, 28, 34, 52, 0 }, 15, 6, 4 },
3959 { 12, 4, 5, { 20, 28, 34, 52, 0 }, 16, 7, 4 },
3960 { 12, 5, 6, { 20, 28, 34, 52, 0 }, 17, 8, 4 },
3961 { 9, 3, 4, { 15, 21, 26, 39, 0 }, 12, 6, 4 },
3962 { 9, 4, 5, { 15, 21, 26, 39, 0 }, 13, 7, 4 }
3966 unsigned int width, density, slow, attempts;
3967 adapter_t *adapter = mc7->adapter;
3968 const struct mc7_timing_params *p = &mc7_timings[mem_type];
3973 val = t3_read_reg(adapter, mc7->offset + A_MC7_CFG);
3974 slow = val & F_SLOW;
3975 width = G_WIDTH(val);
3976 density = G_DEN(val);
3978 t3_write_reg(adapter, mc7->offset + A_MC7_CFG, val | F_IFEN);
3979 val = t3_read_reg(adapter, mc7->offset + A_MC7_CFG); /* flush */
3983 t3_write_reg(adapter, mc7->offset + A_MC7_CAL, F_SGL_CAL_EN);
3984 (void) t3_read_reg(adapter, mc7->offset + A_MC7_CAL);
3986 if (t3_read_reg(adapter, mc7->offset + A_MC7_CAL) &
3987 (F_BUSY | F_SGL_CAL_EN | F_CAL_FAULT)) {
3988 CH_ERR(adapter, "%s MC7 calibration timed out\n",
3994 t3_write_reg(adapter, mc7->offset + A_MC7_PARM,
3995 V_ACTTOPREDLY(p->ActToPreDly) |
3996 V_ACTTORDWRDLY(p->ActToRdWrDly) | V_PRECYC(p->PreCyc) |
3997 V_REFCYC(p->RefCyc[density]) | V_BKCYC(p->BkCyc) |
3998 V_WRTORDDLY(p->WrToRdDly) | V_RDTOWRDLY(p->RdToWrDly));
4000 t3_write_reg(adapter, mc7->offset + A_MC7_CFG,
4001 val | F_CLKEN | F_TERM150);
4002 (void) t3_read_reg(adapter, mc7->offset + A_MC7_CFG); /* flush */
4005 t3_set_reg_field(adapter, mc7->offset + A_MC7_DLL, F_DLLENB,
4010 if (wrreg_wait(adapter, mc7->offset + A_MC7_PRE, 0) ||
4011 wrreg_wait(adapter, mc7->offset + A_MC7_EXT_MODE2, 0) ||
4012 wrreg_wait(adapter, mc7->offset + A_MC7_EXT_MODE3, 0) ||
4013 wrreg_wait(adapter, mc7->offset + A_MC7_EXT_MODE1, val))
4017 t3_write_reg(adapter, mc7->offset + A_MC7_MODE, 0x100);
4018 t3_set_reg_field(adapter, mc7->offset + A_MC7_DLL,
4023 if (wrreg_wait(adapter, mc7->offset + A_MC7_PRE, 0) ||
4024 wrreg_wait(adapter, mc7->offset + A_MC7_REF, 0) ||
4025 wrreg_wait(adapter, mc7->offset + A_MC7_REF, 0) ||
4026 wrreg_wait(adapter, mc7->offset + A_MC7_MODE,
4027 mc7_mode[mem_type]) ||
4028 wrreg_wait(adapter, mc7->offset + A_MC7_EXT_MODE1, val | 0x380) ||
4029 wrreg_wait(adapter, mc7->offset + A_MC7_EXT_MODE1, val))
4032 /* clock value is in KHz */
4033 mc7_clock = mc7_clock * 7812 + mc7_clock / 2; /* ns */
4034 mc7_clock /= 1000000; /* KHz->MHz, ns->us */
4036 t3_write_reg(adapter, mc7->offset + A_MC7_REF,
4037 F_PERREFEN | V_PREREFDIV(mc7_clock));
4038 (void) t3_read_reg(adapter, mc7->offset + A_MC7_REF); /* flush */
4040 t3_write_reg(adapter, mc7->offset + A_MC7_ECC,
4041 F_ECCGENEN | F_ECCCHKEN);
4042 t3_write_reg(adapter, mc7->offset + A_MC7_BIST_DATA, 0);
4043 t3_write_reg(adapter, mc7->offset + A_MC7_BIST_ADDR_BEG, 0);
4044 t3_write_reg(adapter, mc7->offset + A_MC7_BIST_ADDR_END,
4045 (mc7->size << width) - 1);
4046 t3_write_reg(adapter, mc7->offset + A_MC7_BIST_OP, V_OP(1));
4047 (void) t3_read_reg(adapter, mc7->offset + A_MC7_BIST_OP); /* flush */
4052 val = t3_read_reg(adapter, mc7->offset + A_MC7_BIST_OP);
4053 } while ((val & F_BUSY) && --attempts);
4055 CH_ERR(adapter, "%s MC7 BIST timed out\n", mc7->name);
4059 /* Enable normal memory accesses. */
4060 t3_set_reg_field(adapter, mc7->offset + A_MC7_CFG, 0, F_RDY);
4067 static void config_pcie(adapter_t *adap)
4069 static const u16 ack_lat[4][6] = {
4070 { 237, 416, 559, 1071, 2095, 4143 },
4071 { 128, 217, 289, 545, 1057, 2081 },
4072 { 73, 118, 154, 282, 538, 1050 },
4073 { 67, 107, 86, 150, 278, 534 }
4075 static const u16 rpl_tmr[4][6] = {
4076 { 711, 1248, 1677, 3213, 6285, 12429 },
4077 { 384, 651, 867, 1635, 3171, 6243 },
4078 { 219, 354, 462, 846, 1614, 3150 },
4079 { 201, 321, 258, 450, 834, 1602 }
4083 unsigned int log2_width, pldsize;
4084 unsigned int fst_trn_rx, fst_trn_tx, acklat, rpllmt;
4086 t3_os_pci_read_config_2(adap,
4087 adap->params.pci.pcie_cap_addr + PCI_EXP_DEVCTL,
4089 pldsize = (val & PCI_EXP_DEVCTL_PAYLOAD) >> 5;
4092 * Gen2 adapter pcie bridge compatibility requires minimum
4093 * Max_Read_Request_size
4095 t3_os_pci_read_config_2(adap, 0x2, &devid);
4096 if (devid == 0x37) {
4097 t3_os_pci_write_config_2(adap,
4098 adap->params.pci.pcie_cap_addr + PCI_EXP_DEVCTL,
4099 val & ~PCI_EXP_DEVCTL_READRQ & ~PCI_EXP_DEVCTL_PAYLOAD);
4103 t3_os_pci_read_config_2(adap,
4104 adap->params.pci.pcie_cap_addr + PCI_EXP_LNKCTL,
4107 fst_trn_tx = G_NUMFSTTRNSEQ(t3_read_reg(adap, A_PCIE_PEX_CTRL0));
4108 fst_trn_rx = adap->params.rev == 0 ? fst_trn_tx :
4109 G_NUMFSTTRNSEQRX(t3_read_reg(adap, A_PCIE_MODE));
4110 log2_width = fls(adap->params.pci.width) - 1;
4111 acklat = ack_lat[log2_width][pldsize];
4112 if (val & 1) /* check LOsEnable */
4113 acklat += fst_trn_tx * 4;
4114 rpllmt = rpl_tmr[log2_width][pldsize] + fst_trn_rx * 4;
4116 if (adap->params.rev == 0)
4117 t3_set_reg_field(adap, A_PCIE_PEX_CTRL1,
4118 V_T3A_ACKLAT(M_T3A_ACKLAT),
4119 V_T3A_ACKLAT(acklat));
4121 t3_set_reg_field(adap, A_PCIE_PEX_CTRL1, V_ACKLAT(M_ACKLAT),
4124 t3_set_reg_field(adap, A_PCIE_PEX_CTRL0, V_REPLAYLMT(M_REPLAYLMT),
4125 V_REPLAYLMT(rpllmt));
4127 t3_write_reg(adap, A_PCIE_PEX_ERR, 0xffffffff);
4128 t3_set_reg_field(adap, A_PCIE_CFG, 0,
4129 F_ENABLELINKDWNDRST | F_ENABLELINKDOWNRST |
4130 F_PCIE_DMASTOPEN | F_PCIE_CLIDECEN);
4134 * t3_init_hw - initialize and configure T3 HW modules
4135 * @adapter: the adapter
4136 * @fw_params: initial parameters to pass to firmware (optional)
4138 * Initialize and configure T3 HW modules. This performs the
4139 * initialization steps that need to be done once after a card is reset.
4140 * MAC and PHY initialization is handled separarely whenever a port is
4143 * @fw_params are passed to FW and their value is platform dependent.
4144 * Only the top 8 bits are available for use, the rest must be 0.
4146 int t3_init_hw(adapter_t *adapter, u32 fw_params)
4148 int err = -EIO, attempts, i;
4149 const struct vpd_params *vpd = &adapter->params.vpd;
4151 if (adapter->params.rev > 0)
4152 calibrate_xgm_t3b(adapter);
4153 else if (calibrate_xgm(adapter))
4156 if (adapter->params.nports > 2)
4157 t3_mac_init(&adap2pinfo(adapter, 0)->mac);
4160 partition_mem(adapter, &adapter->params.tp);
4162 if (mc7_init(&adapter->pmrx, vpd->mclk, vpd->mem_timing) ||
4163 mc7_init(&adapter->pmtx, vpd->mclk, vpd->mem_timing) ||
4164 mc7_init(&adapter->cm, vpd->mclk, vpd->mem_timing) ||
4165 t3_mc5_init(&adapter->mc5, adapter->params.mc5.nservers,
4166 adapter->params.mc5.nfilters,
4167 adapter->params.mc5.nroutes))
4170 for (i = 0; i < 32; i++)
4171 if (clear_sge_ctxt(adapter, i, F_CQ))
4175 if (tp_init(adapter, &adapter->params.tp))
4178 t3_tp_set_coalescing_size(adapter,
4179 min(adapter->params.sge.max_pkt_size,
4180 MAX_RX_COALESCING_LEN), 1);
4181 t3_tp_set_max_rxsize(adapter,
4182 min(adapter->params.sge.max_pkt_size, 16384U));
4183 ulp_config(adapter, &adapter->params.tp);
4184 if (is_pcie(adapter))
4185 config_pcie(adapter);
4187 t3_set_reg_field(adapter, A_PCIX_CFG, 0,
4188 F_DMASTOPEN | F_CLIDECEN);
4190 if (adapter->params.rev == T3_REV_C)
4191 t3_set_reg_field(adapter, A_ULPTX_CONFIG, 0,
4192 F_CFG_CQE_SOP_MASK);
4194 t3_write_reg(adapter, A_PM1_RX_CFG, 0xffffffff);
4195 t3_write_reg(adapter, A_PM1_RX_MODE, 0);
4196 t3_write_reg(adapter, A_PM1_TX_MODE, 0);
4197 chan_init_hw(adapter, adapter->params.chan_map);
4198 t3_sge_init(adapter, &adapter->params.sge);
4199 t3_set_reg_field(adapter, A_PL_RST, 0, F_FATALPERREN);
4201 t3_write_reg(adapter, A_T3DBG_GPIO_ACT_LOW, calc_gpio_intr(adapter));
4203 t3_write_reg(adapter, A_CIM_HOST_ACC_DATA, vpd->uclk | fw_params);
4204 t3_write_reg(adapter, A_CIM_BOOT_CFG,
4205 V_BOOTADDR(FW_FLASH_BOOT_ADDR >> 2));
4206 (void) t3_read_reg(adapter, A_CIM_BOOT_CFG); /* flush */
4209 do { /* wait for uP to initialize */
4211 } while (t3_read_reg(adapter, A_CIM_HOST_ACC_DATA) && --attempts);
4213 CH_ERR(adapter, "uP initialization timed out\n");
4223 * get_pci_mode - determine a card's PCI mode
4224 * @adapter: the adapter
4225 * @p: where to store the PCI settings
4227 * Determines a card's PCI mode and associated parameters, such as speed
4230 static void __devinit get_pci_mode(adapter_t *adapter, struct pci_params *p)
4232 static unsigned short speed_map[] = { 33, 66, 100, 133 };
4233 u32 pci_mode, pcie_cap;
4235 pcie_cap = t3_os_find_pci_capability(adapter, PCI_CAP_ID_EXP);
4239 p->variant = PCI_VARIANT_PCIE;
4240 p->pcie_cap_addr = pcie_cap;
4241 t3_os_pci_read_config_2(adapter, pcie_cap + PCI_EXP_LNKSTA,
4243 p->width = (val >> 4) & 0x3f;
4247 pci_mode = t3_read_reg(adapter, A_PCIX_MODE);
4248 p->speed = speed_map[G_PCLKRANGE(pci_mode)];
4249 p->width = (pci_mode & F_64BIT) ? 64 : 32;
4250 pci_mode = G_PCIXINITPAT(pci_mode);
4252 p->variant = PCI_VARIANT_PCI;
4253 else if (pci_mode < 4)
4254 p->variant = PCI_VARIANT_PCIX_MODE1_PARITY;
4255 else if (pci_mode < 8)
4256 p->variant = PCI_VARIANT_PCIX_MODE1_ECC;
4258 p->variant = PCI_VARIANT_PCIX_266_MODE2;
4262 * init_link_config - initialize a link's SW state
4263 * @lc: structure holding the link state
4264 * @caps: link capabilities
4266 * Initializes the SW state maintained for each link, including the link's
4267 * capabilities and default speed/duplex/flow-control/autonegotiation
4270 static void __devinit init_link_config(struct link_config *lc,
4273 lc->supported = caps;
4274 lc->requested_speed = lc->speed = SPEED_INVALID;
4275 lc->requested_duplex = lc->duplex = DUPLEX_INVALID;
4276 lc->requested_fc = lc->fc = PAUSE_RX | PAUSE_TX;
4277 if (lc->supported & SUPPORTED_Autoneg) {
4278 lc->advertising = lc->supported;
4279 lc->autoneg = AUTONEG_ENABLE;
4280 lc->requested_fc |= PAUSE_AUTONEG;
4282 lc->advertising = 0;
4283 lc->autoneg = AUTONEG_DISABLE;
4288 * mc7_calc_size - calculate MC7 memory size
4289 * @cfg: the MC7 configuration
4291 * Calculates the size of an MC7 memory in bytes from the value of its
4292 * configuration register.
4294 static unsigned int __devinit mc7_calc_size(u32 cfg)
4296 unsigned int width = G_WIDTH(cfg);
4297 unsigned int banks = !!(cfg & F_BKS) + 1;
4298 unsigned int org = !!(cfg & F_ORG) + 1;
4299 unsigned int density = G_DEN(cfg);
4300 unsigned int MBs = ((256 << density) * banks) / (org << width);
4305 static void __devinit mc7_prep(adapter_t *adapter, struct mc7 *mc7,
4306 unsigned int base_addr, const char *name)
4310 mc7->adapter = adapter;
4312 mc7->offset = base_addr - MC7_PMRX_BASE_ADDR;
4313 cfg = t3_read_reg(adapter, mc7->offset + A_MC7_CFG);
4314 mc7->size = G_DEN(cfg) == M_DEN ? 0 : mc7_calc_size(cfg);
4315 mc7->width = G_WIDTH(cfg);
4318 void mac_prep(struct cmac *mac, adapter_t *adapter, int index)
4322 mac->adapter = adapter;
4323 mac->multiport = adapter->params.nports > 2;
4324 if (mac->multiport) {
4325 mac->ext_port = (unsigned char)index;
4330 /* Gen2 adapter uses VPD xauicfg[] to notify driver which MAC
4331 is connected to each port, its suppose to be using xgmac0 for both ports
4333 t3_os_pci_read_config_2(adapter, 0x2, &devid);
4335 if (mac->multiport ||
4336 (!adapter->params.vpd.xauicfg[1] && (devid==0x37)))
4339 mac->offset = (XGMAC0_1_BASE_ADDR - XGMAC0_0_BASE_ADDR) * index;
4341 if (adapter->params.rev == 0 && uses_xaui(adapter)) {
4342 t3_write_reg(adapter, A_XGM_SERDES_CTRL + mac->offset,
4343 is_10G(adapter) ? 0x2901c04 : 0x2301c04);
4344 t3_set_reg_field(adapter, A_XGM_PORT_CFG + mac->offset,
4350 * early_hw_init - HW initialization done at card detection time
4351 * @adapter: the adapter
4352 * @ai: contains information about the adapter type and properties
4354 * Perfoms the part of HW initialization that is done early on when the
4355 * driver first detecs the card. Most of the HW state is initialized
4356 * lazily later on when a port or an offload function are first used.
4358 void early_hw_init(adapter_t *adapter, const struct adapter_info *ai)
4360 u32 val = V_PORTSPEED(is_10G(adapter) || adapter->params.nports > 2 ?
4362 u32 gpio_out = ai->gpio_out;
4364 mi1_init(adapter, ai);
4365 t3_write_reg(adapter, A_I2C_CFG, /* set for 80KHz */
4366 V_I2C_CLKDIV(adapter->params.vpd.cclk / 80 - 1));
4367 t3_write_reg(adapter, A_T3DBG_GPIO_EN,
4368 gpio_out | F_GPIO0_OEN | F_GPIO0_OUT_VAL);
4369 t3_write_reg(adapter, A_MC5_DB_SERVER_INDEX, 0);
4370 t3_write_reg(adapter, A_SG_OCO_BASE, V_BASE1(0xfff));
4372 if (adapter->params.rev == 0 || !uses_xaui(adapter))
4375 /* Enable MAC clocks so we can access the registers */
4376 t3_write_reg(adapter, A_XGM_PORT_CFG, val);
4377 (void) t3_read_reg(adapter, A_XGM_PORT_CFG);
4379 val |= F_CLKDIVRESET_;
4380 t3_write_reg(adapter, A_XGM_PORT_CFG, val);
4381 (void) t3_read_reg(adapter, A_XGM_PORT_CFG);
4382 t3_write_reg(adapter, XGM_REG(A_XGM_PORT_CFG, 1), val);
4383 (void) t3_read_reg(adapter, A_XGM_PORT_CFG);
4387 * t3_reset_adapter - reset the adapter
4388 * @adapter: the adapter
4390 * Reset the adapter.
4392 int t3_reset_adapter(adapter_t *adapter)
4394 int i, save_and_restore_pcie =
4395 adapter->params.rev < T3_REV_B2 && is_pcie(adapter);
4398 if (save_and_restore_pcie)
4399 t3_os_pci_save_state(adapter);
4400 t3_write_reg(adapter, A_PL_RST, F_CRSTWRM | F_CRSTWRMMODE);
4403 * Delay. Give Some time to device to reset fully.
4404 * XXX The delay time should be modified.
4406 for (i = 0; i < 10; i++) {
4408 t3_os_pci_read_config_2(adapter, 0x00, &devid);
4409 if (devid == 0x1425)
4413 if (devid != 0x1425)
4416 if (save_and_restore_pcie)
4417 t3_os_pci_restore_state(adapter);
4421 static int init_parity(adapter_t *adap)
4425 if (t3_read_reg(adap, A_SG_CONTEXT_CMD) & F_CONTEXT_CMD_BUSY)
4428 for (err = i = 0; !err && i < 16; i++)
4429 err = clear_sge_ctxt(adap, i, F_EGRESS);
4430 for (i = 0xfff0; !err && i <= 0xffff; i++)
4431 err = clear_sge_ctxt(adap, i, F_EGRESS);
4432 for (i = 0; !err && i < SGE_QSETS; i++)
4433 err = clear_sge_ctxt(adap, i, F_RESPONSEQ);
4437 t3_write_reg(adap, A_CIM_IBQ_DBG_DATA, 0);
4438 for (i = 0; i < 4; i++)
4439 for (addr = 0; addr <= M_IBQDBGADDR; addr++) {
4440 t3_write_reg(adap, A_CIM_IBQ_DBG_CFG, F_IBQDBGEN |
4441 F_IBQDBGWR | V_IBQDBGQID(i) |
4442 V_IBQDBGADDR(addr));
4443 err = t3_wait_op_done(adap, A_CIM_IBQ_DBG_CFG,
4444 F_IBQDBGBUSY, 0, 2, 1);
4452 * t3_prep_adapter - prepare SW and HW for operation
4453 * @adapter: the adapter
4454 * @ai: contains information about the adapter type and properties
4456 * Initialize adapter SW state for the various HW modules, set initial
4457 * values for some adapter tunables, take PHYs out of reset, and
4458 * initialize the MDIO interface.
4460 int __devinit t3_prep_adapter(adapter_t *adapter,
4461 const struct adapter_info *ai, int reset)
4464 unsigned int i, j = 0;
4466 get_pci_mode(adapter, &adapter->params.pci);
4468 adapter->params.info = ai;
4469 adapter->params.nports = ai->nports0 + ai->nports1;
4470 adapter->params.chan_map = (!!ai->nports0) | (!!ai->nports1 << 1);
4471 adapter->params.rev = t3_read_reg(adapter, A_PL_REV);
4474 * We used to only run the "adapter check task" once a second if
4475 * we had PHYs which didn't support interrupts (we would check
4476 * their link status once a second). Now we check other conditions
4477 * in that routine which would [potentially] impose a very high
4478 * interrupt load on the system. As such, we now always scan the
4479 * adapter state once a second ...
4481 adapter->params.linkpoll_period = 10;
4483 if (adapter->params.nports > 2)
4484 adapter->params.stats_update_period = VSC_STATS_ACCUM_SECS;
4486 adapter->params.stats_update_period = is_10G(adapter) ?
4487 MAC_STATS_ACCUM_SECS : (MAC_STATS_ACCUM_SECS * 10);
4488 adapter->params.pci.vpd_cap_addr =
4489 t3_os_find_pci_capability(adapter, PCI_CAP_ID_VPD);
4491 ret = get_vpd_params(adapter, &adapter->params.vpd);
4495 if (reset && t3_reset_adapter(adapter))
4498 if (adapter->params.vpd.mclk) {
4499 struct tp_params *p = &adapter->params.tp;
4501 mc7_prep(adapter, &adapter->pmrx, MC7_PMRX_BASE_ADDR, "PMRX");
4502 mc7_prep(adapter, &adapter->pmtx, MC7_PMTX_BASE_ADDR, "PMTX");
4503 mc7_prep(adapter, &adapter->cm, MC7_CM_BASE_ADDR, "CM");
4505 p->nchan = adapter->params.chan_map == 3 ? 2 : 1;
4506 p->pmrx_size = t3_mc7_size(&adapter->pmrx);
4507 p->pmtx_size = t3_mc7_size(&adapter->pmtx);
4508 p->cm_size = t3_mc7_size(&adapter->cm);
4509 p->chan_rx_size = p->pmrx_size / 2; /* only 1 Rx channel */
4510 p->chan_tx_size = p->pmtx_size / p->nchan;
4511 p->rx_pg_size = 64 * 1024;
4512 p->tx_pg_size = is_10G(adapter) ? 64 * 1024 : 16 * 1024;
4513 p->rx_num_pgs = pm_num_pages(p->chan_rx_size, p->rx_pg_size);
4514 p->tx_num_pgs = pm_num_pages(p->chan_tx_size, p->tx_pg_size);
4515 p->ntimer_qs = p->cm_size >= (128 << 20) ||
4516 adapter->params.rev > 0 ? 12 : 6;
4517 p->tre = fls(adapter->params.vpd.cclk / (1000 / TP_TMR_RES)) -
4519 p->dack_re = fls(adapter->params.vpd.cclk / 10) - 1; /* 100us */
4522 adapter->params.offload = t3_mc7_size(&adapter->pmrx) &&
4523 t3_mc7_size(&adapter->pmtx) &&
4524 t3_mc7_size(&adapter->cm);
4526 t3_sge_prep(adapter, &adapter->params.sge);
4528 if (is_offload(adapter)) {
4529 adapter->params.mc5.nservers = DEFAULT_NSERVERS;
4530 /* PR 6487. TOE and filtering are mutually exclusive */
4531 adapter->params.mc5.nfilters = 0;
4532 adapter->params.mc5.nroutes = 0;
4533 t3_mc5_prep(adapter, &adapter->mc5, MC5_MODE_144_BIT);
4535 init_mtus(adapter->params.mtus);
4536 init_cong_ctrl(adapter->params.a_wnd, adapter->params.b_wnd);
4539 early_hw_init(adapter, ai);
4540 ret = init_parity(adapter);
4544 if (adapter->params.nports > 2 &&
4545 (ret = t3_vsc7323_init(adapter, adapter->params.nports)))
4548 for_each_port(adapter, i) {
4550 const struct port_type_info *pti;
4551 struct port_info *p = adap2pinfo(adapter, i);
4554 unsigned port_type = adapter->params.vpd.port_type[j];
4556 if (port_type < ARRAY_SIZE(port_types)) {
4557 pti = &port_types[port_type];
4563 if (j >= ARRAY_SIZE(adapter->params.vpd.port_type))
4566 ret = pti->phy_prep(p, ai->phy_base_addr + j,
4570 mac_prep(&p->mac, adapter, j);
4574 * The VPD EEPROM stores the base Ethernet address for the
4575 * card. A port's address is derived from the base by adding
4576 * the port's index to the base's low octet.
4578 memcpy(hw_addr, adapter->params.vpd.eth_base, 5);
4579 hw_addr[5] = adapter->params.vpd.eth_base[5] + i;
4581 t3_os_set_hw_addr(adapter, i, hw_addr);
4582 init_link_config(&p->link_config, p->phy.caps);
4583 p->phy.ops->power_down(&p->phy, 1);
4586 * If the PHY doesn't support interrupts for link status
4587 * changes, schedule a scan of the adapter links at least
4590 if (!(p->phy.caps & SUPPORTED_IRQ) &&
4591 adapter->params.linkpoll_period > 10)
4592 adapter->params.linkpoll_period = 10;
4599 * t3_reinit_adapter - prepare HW for operation again
4600 * @adapter: the adapter
4602 * Put HW in the same state as @t3_prep_adapter without any changes to
4603 * SW state. This is a cut down version of @t3_prep_adapter intended
4604 * to be used after events that wipe out HW state but preserve SW state,
4605 * e.g., EEH. The device must be reset before calling this.
4607 int t3_reinit_adapter(adapter_t *adap)
4612 early_hw_init(adap, adap->params.info);
4613 ret = init_parity(adap);
4617 if (adap->params.nports > 2 &&
4618 (ret = t3_vsc7323_init(adap, adap->params.nports)))
4621 for_each_port(adap, i) {
4622 const struct port_type_info *pti;
4623 struct port_info *p = adap2pinfo(adap, i);
4626 unsigned port_type = adap->params.vpd.port_type[j];
4628 if (port_type < ARRAY_SIZE(port_types)) {
4629 pti = &port_types[port_type];
4635 if (j >= ARRAY_SIZE(adap->params.vpd.port_type))
4638 ret = pti->phy_prep(p, p->phy.addr, NULL);
4641 p->phy.ops->power_down(&p->phy, 1);
4646 void t3_led_ready(adapter_t *adapter)
4648 t3_set_reg_field(adapter, A_T3DBG_GPIO_EN, F_GPIO0_OUT_VAL,
4652 void t3_port_failover(adapter_t *adapter, int port)
4656 val = port ? F_PORT1ACTIVE : F_PORT0ACTIVE;
4657 t3_set_reg_field(adapter, A_MPS_CFG, F_PORT0ACTIVE | F_PORT1ACTIVE,
4661 void t3_failover_done(adapter_t *adapter, int port)
4663 t3_set_reg_field(adapter, A_MPS_CFG, F_PORT0ACTIVE | F_PORT1ACTIVE,
4664 F_PORT0ACTIVE | F_PORT1ACTIVE);
4667 void t3_failover_clear(adapter_t *adapter)
4669 t3_set_reg_field(adapter, A_MPS_CFG, F_PORT0ACTIVE | F_PORT1ACTIVE,
4670 F_PORT0ACTIVE | F_PORT1ACTIVE);
4673 static int t3_cim_hac_read(adapter_t *adapter, u32 addr, u32 *val)
4677 t3_write_reg(adapter, A_CIM_HOST_ACC_CTRL, addr);
4678 if (t3_wait_op_done_val(adapter, A_CIM_HOST_ACC_CTRL,
4679 F_HOSTBUSY, 0, 10, 10, &v))
4682 *val = t3_read_reg(adapter, A_CIM_HOST_ACC_DATA);
4687 static int t3_cim_hac_write(adapter_t *adapter, u32 addr, u32 val)
4691 t3_write_reg(adapter, A_CIM_HOST_ACC_DATA, val);
4693 addr |= F_HOSTWRITE;
4694 t3_write_reg(adapter, A_CIM_HOST_ACC_CTRL, addr);
4696 if (t3_wait_op_done_val(adapter, A_CIM_HOST_ACC_CTRL,
4697 F_HOSTBUSY, 0, 10, 5, &v))
4702 int t3_get_up_la(adapter_t *adapter, u32 *stopped, u32 *index,
4703 u32 *size, void *data)
4708 if (*size < LA_ENTRIES * 4)
4711 ret = t3_cim_hac_read(adapter, LA_CTRL, &v);
4715 *stopped = !(v & 1);
4719 ret = t3_cim_hac_write(adapter, LA_CTRL, 0);
4724 for (i = 0; i < LA_ENTRIES; i++) {
4725 v = (i << 2) | (1 << 1);
4726 ret = t3_cim_hac_write(adapter, LA_CTRL, v);
4730 ret = t3_cim_hac_read(adapter, LA_CTRL, &v);
4735 while ((v & (1 << 1)) && cnt) {
4738 ret = t3_cim_hac_read(adapter, LA_CTRL, &v);
4746 ret = t3_cim_hac_read(adapter, LA_DATA, &v);
4753 ret = t3_cim_hac_read(adapter, LA_CTRL, &v);
4757 *index = (v >> 16) + 4;
4758 *size = LA_ENTRIES * 4;
4761 t3_cim_hac_write(adapter, LA_CTRL, 1);
4765 int t3_get_up_ioqs(adapter_t *adapter, u32 *size, void *data)
4770 if (*size < IOQ_ENTRIES * sizeof(struct t3_ioq_entry))
4773 for (i = 0; i < 4; i++) {
4774 ret = t3_cim_hac_read(adapter, (4 * i), &v);
4781 for (i = 0; i < IOQ_ENTRIES; i++) {
4782 u32 base_addr = 0x10 * (i + 1);
4784 for (j = 0; j < 4; j++) {
4785 ret = t3_cim_hac_read(adapter, base_addr + 4 * j, &v);
4793 *size = IOQ_ENTRIES * sizeof(struct t3_ioq_entry);