1 /**************************************************************************
2 SPDX-License-Identifier: BSD-2-Clause-FreeBSD
4 Copyright (c) 2007-2009, Chelsio Inc.
7 Redistribution and use in source and binary forms, with or without
8 modification, are permitted provided that the following conditions are met:
10 1. Redistributions of source code must retain the above copyright notice,
11 this list of conditions and the following disclaimer.
13 2. Neither the name of the Chelsio Corporation nor the names of its
14 contributors may be used to endorse or promote products derived from
15 this software without specific prior written permission.
17 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
18 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
21 LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
22 CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
23 SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
24 INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
25 CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
26 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
27 POSSIBILITY OF SUCH DAMAGE.
29 ***************************************************************************/
31 #include <sys/cdefs.h>
32 __FBSDID("$FreeBSD$");
35 #include <cxgb_include.h>
38 #define msleep t3_os_sleep
41 * t3_wait_op_done_val - wait until an operation is completed
42 * @adapter: the adapter performing the operation
43 * @reg: the register to check for completion
44 * @mask: a single-bit field within @reg that indicates completion
45 * @polarity: the value of the field when the operation is completed
46 * @attempts: number of check iterations
47 * @delay: delay in usecs between iterations
48 * @valp: where to store the value of the register at completion time
50 * Wait until an operation is completed by checking a bit in a register
51 * up to @attempts times. If @valp is not NULL the value of the register
52 * at the time it indicated completion is stored there. Returns 0 if the
53 * operation completes and -EAGAIN otherwise.
55 int t3_wait_op_done_val(adapter_t *adapter, int reg, u32 mask, int polarity,
56 int attempts, int delay, u32 *valp)
59 u32 val = t3_read_reg(adapter, reg);
61 if (!!(val & mask) == polarity) {
74 * t3_write_regs - write a bunch of registers
75 * @adapter: the adapter to program
76 * @p: an array of register address/register value pairs
77 * @n: the number of address/value pairs
78 * @offset: register address offset
80 * Takes an array of register address/register value pairs and writes each
81 * value to the corresponding register. Register addresses are adjusted
82 * by the supplied offset.
84 void t3_write_regs(adapter_t *adapter, const struct addr_val_pair *p, int n,
88 t3_write_reg(adapter, p->reg_addr + offset, p->val);
94 * t3_set_reg_field - set a register field to a value
95 * @adapter: the adapter to program
96 * @addr: the register address
97 * @mask: specifies the portion of the register to modify
98 * @val: the new value for the register field
100 * Sets a register field specified by the supplied mask to the
103 void t3_set_reg_field(adapter_t *adapter, unsigned int addr, u32 mask, u32 val)
105 u32 v = t3_read_reg(adapter, addr) & ~mask;
107 t3_write_reg(adapter, addr, v | val);
108 (void) t3_read_reg(adapter, addr); /* flush */
112 * t3_read_indirect - read indirectly addressed registers
114 * @addr_reg: register holding the indirect address
115 * @data_reg: register holding the value of the indirect register
116 * @vals: where the read register values are stored
117 * @start_idx: index of first indirect register to read
118 * @nregs: how many indirect registers to read
120 * Reads registers that are accessed indirectly through an address/data
123 static void t3_read_indirect(adapter_t *adap, unsigned int addr_reg,
124 unsigned int data_reg, u32 *vals, unsigned int nregs,
125 unsigned int start_idx)
128 t3_write_reg(adap, addr_reg, start_idx);
129 *vals++ = t3_read_reg(adap, data_reg);
135 * t3_mc7_bd_read - read from MC7 through backdoor accesses
136 * @mc7: identifies MC7 to read from
137 * @start: index of first 64-bit word to read
138 * @n: number of 64-bit words to read
139 * @buf: where to store the read result
141 * Read n 64-bit words from MC7 starting at word start, using backdoor
144 int t3_mc7_bd_read(struct mc7 *mc7, unsigned int start, unsigned int n,
147 static int shift[] = { 0, 0, 16, 24 };
148 static int step[] = { 0, 32, 16, 8 };
150 unsigned int size64 = mc7->size / 8; /* # of 64-bit words */
151 adapter_t *adap = mc7->adapter;
153 if (start >= size64 || start + n > size64)
156 start *= (8 << mc7->width);
161 for (i = (1 << mc7->width) - 1; i >= 0; --i) {
165 t3_write_reg(adap, mc7->offset + A_MC7_BD_ADDR,
167 t3_write_reg(adap, mc7->offset + A_MC7_BD_OP, 0);
168 val = t3_read_reg(adap, mc7->offset + A_MC7_BD_OP);
169 while ((val & F_BUSY) && attempts--)
170 val = t3_read_reg(adap,
171 mc7->offset + A_MC7_BD_OP);
175 val = t3_read_reg(adap, mc7->offset + A_MC7_BD_DATA1);
176 if (mc7->width == 0) {
177 val64 = t3_read_reg(adap,
178 mc7->offset + A_MC7_BD_DATA0);
179 val64 |= (u64)val << 32;
182 val >>= shift[mc7->width];
183 val64 |= (u64)val << (step[mc7->width] * i);
193 * Low-level I2C read and write routines. These simply read and write a
194 * single byte with the option of indicating a "continue" if another operation
195 * is to be chained. Generally most code will use higher-level routines to
196 * read and write to I2C Slave Devices.
198 #define I2C_ATTEMPTS 100
201 * Read an 8-bit value from the I2C bus. If the "chained" parameter is
202 * non-zero then a STOP bit will not be written after the read command. On
203 * error (the read timed out, etc.), a negative errno will be returned (e.g.
204 * -EAGAIN, etc.). On success, the 8-bit value read from the I2C bus is
205 * stored into the buffer *valp and the value of the I2C ACK bit is returned
208 int t3_i2c_read8(adapter_t *adapter, int chained, u8 *valp)
213 t3_write_reg(adapter, A_I2C_OP,
214 F_I2C_READ | (chained ? F_I2C_CONT : 0));
215 ret = t3_wait_op_done_val(adapter, A_I2C_OP, F_I2C_BUSY, 0,
216 I2C_ATTEMPTS, 10, &opval);
218 ret = ((opval & F_I2C_ACK) == F_I2C_ACK);
219 *valp = G_I2C_DATA(t3_read_reg(adapter, A_I2C_DATA));
221 MDIO_UNLOCK(adapter);
226 * Write an 8-bit value to the I2C bus. If the "chained" parameter is
227 * non-zero, then a STOP bit will not be written after the write command. On
228 * error (the write timed out, etc.), a negative errno will be returned (e.g.
229 * -EAGAIN, etc.). On success, the value of the I2C ACK bit is returned as a
232 int t3_i2c_write8(adapter_t *adapter, int chained, u8 val)
237 t3_write_reg(adapter, A_I2C_DATA, V_I2C_DATA(val));
238 t3_write_reg(adapter, A_I2C_OP,
239 F_I2C_WRITE | (chained ? F_I2C_CONT : 0));
240 ret = t3_wait_op_done_val(adapter, A_I2C_OP, F_I2C_BUSY, 0,
241 I2C_ATTEMPTS, 10, &opval);
243 ret = ((opval & F_I2C_ACK) == F_I2C_ACK);
244 MDIO_UNLOCK(adapter);
251 static void mi1_init(adapter_t *adap, const struct adapter_info *ai)
253 u32 clkdiv = adap->params.vpd.cclk / (2 * adap->params.vpd.mdc) - 1;
254 u32 val = F_PREEN | V_CLKDIV(clkdiv);
256 t3_write_reg(adap, A_MI1_CFG, val);
259 #define MDIO_ATTEMPTS 20
262 * MI1 read/write operations for clause 22 PHYs.
264 int t3_mi1_read(adapter_t *adapter, int phy_addr, int mmd_addr,
265 int reg_addr, unsigned int *valp)
268 u32 addr = V_REGADDR(reg_addr) | V_PHYADDR(phy_addr);
274 t3_set_reg_field(adapter, A_MI1_CFG, V_ST(M_ST), V_ST(1));
275 t3_write_reg(adapter, A_MI1_ADDR, addr);
276 t3_write_reg(adapter, A_MI1_OP, V_MDI_OP(2));
277 ret = t3_wait_op_done(adapter, A_MI1_OP, F_BUSY, 0, MDIO_ATTEMPTS, 10);
279 *valp = t3_read_reg(adapter, A_MI1_DATA);
280 MDIO_UNLOCK(adapter);
284 int t3_mi1_write(adapter_t *adapter, int phy_addr, int mmd_addr,
285 int reg_addr, unsigned int val)
288 u32 addr = V_REGADDR(reg_addr) | V_PHYADDR(phy_addr);
294 t3_set_reg_field(adapter, A_MI1_CFG, V_ST(M_ST), V_ST(1));
295 t3_write_reg(adapter, A_MI1_ADDR, addr);
296 t3_write_reg(adapter, A_MI1_DATA, val);
297 t3_write_reg(adapter, A_MI1_OP, V_MDI_OP(1));
298 ret = t3_wait_op_done(adapter, A_MI1_OP, F_BUSY, 0, MDIO_ATTEMPTS, 10);
299 MDIO_UNLOCK(adapter);
303 static struct mdio_ops mi1_mdio_ops = {
309 * MI1 read/write operations for clause 45 PHYs.
311 static int mi1_ext_read(adapter_t *adapter, int phy_addr, int mmd_addr,
312 int reg_addr, unsigned int *valp)
315 u32 addr = V_REGADDR(mmd_addr) | V_PHYADDR(phy_addr);
318 t3_set_reg_field(adapter, A_MI1_CFG, V_ST(M_ST), 0);
319 t3_write_reg(adapter, A_MI1_ADDR, addr);
320 t3_write_reg(adapter, A_MI1_DATA, reg_addr);
321 t3_write_reg(adapter, A_MI1_OP, V_MDI_OP(0));
322 ret = t3_wait_op_done(adapter, A_MI1_OP, F_BUSY, 0, MDIO_ATTEMPTS, 10);
324 t3_write_reg(adapter, A_MI1_OP, V_MDI_OP(3));
325 ret = t3_wait_op_done(adapter, A_MI1_OP, F_BUSY, 0,
328 *valp = t3_read_reg(adapter, A_MI1_DATA);
330 MDIO_UNLOCK(adapter);
334 static int mi1_ext_write(adapter_t *adapter, int phy_addr, int mmd_addr,
335 int reg_addr, unsigned int val)
338 u32 addr = V_REGADDR(mmd_addr) | V_PHYADDR(phy_addr);
341 t3_set_reg_field(adapter, A_MI1_CFG, V_ST(M_ST), 0);
342 t3_write_reg(adapter, A_MI1_ADDR, addr);
343 t3_write_reg(adapter, A_MI1_DATA, reg_addr);
344 t3_write_reg(adapter, A_MI1_OP, V_MDI_OP(0));
345 ret = t3_wait_op_done(adapter, A_MI1_OP, F_BUSY, 0, MDIO_ATTEMPTS, 10);
347 t3_write_reg(adapter, A_MI1_DATA, val);
348 t3_write_reg(adapter, A_MI1_OP, V_MDI_OP(1));
349 ret = t3_wait_op_done(adapter, A_MI1_OP, F_BUSY, 0,
352 MDIO_UNLOCK(adapter);
356 static struct mdio_ops mi1_mdio_ext_ops = {
362 * t3_mdio_change_bits - modify the value of a PHY register
363 * @phy: the PHY to operate on
364 * @mmd: the device address
365 * @reg: the register address
366 * @clear: what part of the register value to mask off
367 * @set: what part of the register value to set
369 * Changes the value of a PHY register by applying a mask to its current
370 * value and ORing the result with a new value.
372 int t3_mdio_change_bits(struct cphy *phy, int mmd, int reg, unsigned int clear,
378 ret = mdio_read(phy, mmd, reg, &val);
381 ret = mdio_write(phy, mmd, reg, val | set);
387 * t3_phy_reset - reset a PHY block
388 * @phy: the PHY to operate on
389 * @mmd: the device address of the PHY block to reset
390 * @wait: how long to wait for the reset to complete in 1ms increments
392 * Resets a PHY block and optionally waits for the reset to complete.
393 * @mmd should be 0 for 10/100/1000 PHYs and the device address to reset
396 int t3_phy_reset(struct cphy *phy, int mmd, int wait)
401 err = t3_mdio_change_bits(phy, mmd, MII_BMCR, BMCR_PDOWN, BMCR_RESET);
406 err = mdio_read(phy, mmd, MII_BMCR, &ctl);
412 } while (ctl && --wait);
418 * t3_phy_advertise - set the PHY advertisement registers for autoneg
419 * @phy: the PHY to operate on
420 * @advert: bitmap of capabilities the PHY should advertise
422 * Sets a 10/100/1000 PHY's advertisement registers to advertise the
423 * requested capabilities.
425 int t3_phy_advertise(struct cphy *phy, unsigned int advert)
428 unsigned int val = 0;
430 err = mdio_read(phy, 0, MII_CTRL1000, &val);
434 val &= ~(ADVERTISE_1000HALF | ADVERTISE_1000FULL);
435 if (advert & ADVERTISED_1000baseT_Half)
436 val |= ADVERTISE_1000HALF;
437 if (advert & ADVERTISED_1000baseT_Full)
438 val |= ADVERTISE_1000FULL;
440 err = mdio_write(phy, 0, MII_CTRL1000, val);
445 if (advert & ADVERTISED_10baseT_Half)
446 val |= ADVERTISE_10HALF;
447 if (advert & ADVERTISED_10baseT_Full)
448 val |= ADVERTISE_10FULL;
449 if (advert & ADVERTISED_100baseT_Half)
450 val |= ADVERTISE_100HALF;
451 if (advert & ADVERTISED_100baseT_Full)
452 val |= ADVERTISE_100FULL;
453 if (advert & ADVERTISED_Pause)
454 val |= ADVERTISE_PAUSE_CAP;
455 if (advert & ADVERTISED_Asym_Pause)
456 val |= ADVERTISE_PAUSE_ASYM;
457 return mdio_write(phy, 0, MII_ADVERTISE, val);
461 * t3_phy_advertise_fiber - set fiber PHY advertisement register
462 * @phy: the PHY to operate on
463 * @advert: bitmap of capabilities the PHY should advertise
465 * Sets a fiber PHY's advertisement register to advertise the
466 * requested capabilities.
468 int t3_phy_advertise_fiber(struct cphy *phy, unsigned int advert)
470 unsigned int val = 0;
472 if (advert & ADVERTISED_1000baseT_Half)
473 val |= ADVERTISE_1000XHALF;
474 if (advert & ADVERTISED_1000baseT_Full)
475 val |= ADVERTISE_1000XFULL;
476 if (advert & ADVERTISED_Pause)
477 val |= ADVERTISE_1000XPAUSE;
478 if (advert & ADVERTISED_Asym_Pause)
479 val |= ADVERTISE_1000XPSE_ASYM;
480 return mdio_write(phy, 0, MII_ADVERTISE, val);
484 * t3_set_phy_speed_duplex - force PHY speed and duplex
485 * @phy: the PHY to operate on
486 * @speed: requested PHY speed
487 * @duplex: requested PHY duplex
489 * Force a 10/100/1000 PHY's speed and duplex. This also disables
490 * auto-negotiation except for GigE, where auto-negotiation is mandatory.
492 int t3_set_phy_speed_duplex(struct cphy *phy, int speed, int duplex)
497 err = mdio_read(phy, 0, MII_BMCR, &ctl);
502 ctl &= ~(BMCR_SPEED100 | BMCR_SPEED1000 | BMCR_ANENABLE);
503 if (speed == SPEED_100)
504 ctl |= BMCR_SPEED100;
505 else if (speed == SPEED_1000)
506 ctl |= BMCR_SPEED1000;
509 ctl &= ~(BMCR_FULLDPLX | BMCR_ANENABLE);
510 if (duplex == DUPLEX_FULL)
511 ctl |= BMCR_FULLDPLX;
513 if (ctl & BMCR_SPEED1000) /* auto-negotiation required for GigE */
514 ctl |= BMCR_ANENABLE;
515 return mdio_write(phy, 0, MII_BMCR, ctl);
518 int t3_phy_lasi_intr_enable(struct cphy *phy)
520 return mdio_write(phy, MDIO_DEV_PMA_PMD, LASI_CTRL, 1);
523 int t3_phy_lasi_intr_disable(struct cphy *phy)
525 return mdio_write(phy, MDIO_DEV_PMA_PMD, LASI_CTRL, 0);
528 int t3_phy_lasi_intr_clear(struct cphy *phy)
532 return mdio_read(phy, MDIO_DEV_PMA_PMD, LASI_STAT, &val);
535 int t3_phy_lasi_intr_handler(struct cphy *phy)
538 int err = mdio_read(phy, MDIO_DEV_PMA_PMD, LASI_STAT, &status);
542 return (status & 1) ? cphy_cause_link_change : 0;
545 static struct adapter_info t3_adap_info[] = {
547 F_GPIO2_OEN | F_GPIO4_OEN |
548 F_GPIO2_OUT_VAL | F_GPIO4_OUT_VAL, { S_GPIO3, S_GPIO5 }, 0,
549 &mi1_mdio_ops, "Chelsio PE9000" },
551 F_GPIO2_OEN | F_GPIO4_OEN |
552 F_GPIO2_OUT_VAL | F_GPIO4_OUT_VAL, { S_GPIO3, S_GPIO5 }, 0,
553 &mi1_mdio_ops, "Chelsio T302" },
555 F_GPIO1_OEN | F_GPIO6_OEN | F_GPIO7_OEN | F_GPIO10_OEN |
556 F_GPIO11_OEN | F_GPIO1_OUT_VAL | F_GPIO6_OUT_VAL | F_GPIO10_OUT_VAL,
557 { 0 }, SUPPORTED_10000baseT_Full | SUPPORTED_AUI,
558 &mi1_mdio_ext_ops, "Chelsio T310" },
560 F_GPIO1_OEN | F_GPIO2_OEN | F_GPIO4_OEN | F_GPIO5_OEN | F_GPIO6_OEN |
561 F_GPIO7_OEN | F_GPIO10_OEN | F_GPIO11_OEN | F_GPIO1_OUT_VAL |
562 F_GPIO5_OUT_VAL | F_GPIO6_OUT_VAL | F_GPIO10_OUT_VAL,
563 { S_GPIO9, S_GPIO3 }, SUPPORTED_10000baseT_Full | SUPPORTED_AUI,
564 &mi1_mdio_ext_ops, "Chelsio T320" },
566 F_GPIO5_OEN | F_GPIO6_OEN | F_GPIO7_OEN | F_GPIO5_OUT_VAL |
567 F_GPIO6_OUT_VAL | F_GPIO7_OUT_VAL,
568 { S_GPIO1, S_GPIO2, S_GPIO3, S_GPIO4 }, SUPPORTED_AUI,
569 &mi1_mdio_ops, "Chelsio T304" },
572 F_GPIO1_OEN | F_GPIO2_OEN | F_GPIO4_OEN | F_GPIO6_OEN | F_GPIO7_OEN |
573 F_GPIO10_OEN | F_GPIO1_OUT_VAL | F_GPIO6_OUT_VAL | F_GPIO10_OUT_VAL,
574 { S_GPIO9 }, SUPPORTED_10000baseT_Full | SUPPORTED_AUI,
575 &mi1_mdio_ext_ops, "Chelsio T310" },
577 F_GPIO1_OEN | F_GPIO6_OEN | F_GPIO7_OEN |
578 F_GPIO1_OUT_VAL | F_GPIO6_OUT_VAL,
579 { S_GPIO9 }, SUPPORTED_10000baseT_Full | SUPPORTED_AUI,
580 &mi1_mdio_ext_ops, "Chelsio N320E-G2" },
584 * Return the adapter_info structure with a given index. Out-of-range indices
587 const struct adapter_info *t3_get_adapter_info(unsigned int id)
589 return id < ARRAY_SIZE(t3_adap_info) ? &t3_adap_info[id] : NULL;
592 struct port_type_info {
593 int (*phy_prep)(pinfo_t *pinfo, int phy_addr,
594 const struct mdio_ops *ops);
597 static struct port_type_info port_types[] = {
599 { t3_ael1002_phy_prep },
600 { t3_vsc8211_phy_prep },
601 { t3_mv88e1xxx_phy_prep },
602 { t3_xaui_direct_phy_prep },
603 { t3_ael2005_phy_prep },
604 { t3_qt2045_phy_prep },
605 { t3_ael1006_phy_prep },
606 { t3_tn1010_phy_prep },
607 { t3_aq100x_phy_prep },
608 { t3_ael2020_phy_prep },
611 #define VPD_ENTRY(name, len) \
612 u8 name##_kword[2]; u8 name##_len; u8 name##_data[len]
615 * Partial EEPROM Vital Product Data structure. Includes only the ID and
624 VPD_ENTRY(pn, 16); /* part number */
625 VPD_ENTRY(ec, ECNUM_LEN); /* EC level */
626 VPD_ENTRY(sn, SERNUM_LEN); /* serial number */
627 VPD_ENTRY(na, 12); /* MAC address base */
628 VPD_ENTRY(cclk, 6); /* core clock */
629 VPD_ENTRY(mclk, 6); /* mem clock */
630 VPD_ENTRY(uclk, 6); /* uP clk */
631 VPD_ENTRY(mdc, 6); /* MDIO clk */
632 VPD_ENTRY(mt, 2); /* mem timing */
633 VPD_ENTRY(xaui0cfg, 6); /* XAUI0 config */
634 VPD_ENTRY(xaui1cfg, 6); /* XAUI1 config */
635 VPD_ENTRY(port0, 2); /* PHY0 complex */
636 VPD_ENTRY(port1, 2); /* PHY1 complex */
637 VPD_ENTRY(port2, 2); /* PHY2 complex */
638 VPD_ENTRY(port3, 2); /* PHY3 complex */
639 VPD_ENTRY(rv, 1); /* csum */
640 u32 pad; /* for multiple-of-4 sizing and alignment */
643 #define EEPROM_MAX_POLL 40
644 #define EEPROM_STAT_ADDR 0x4000
645 #define VPD_BASE 0xc00
648 * t3_seeprom_read - read a VPD EEPROM location
649 * @adapter: adapter to read
650 * @addr: EEPROM address
651 * @data: where to store the read data
653 * Read a 32-bit word from a location in VPD EEPROM using the card's PCI
654 * VPD ROM capability. A zero is written to the flag bit when the
655 * address is written to the control register. The hardware device will
656 * set the flag to 1 when 4 bytes have been read into the data register.
658 int t3_seeprom_read(adapter_t *adapter, u32 addr, u32 *data)
661 int attempts = EEPROM_MAX_POLL;
662 unsigned int base = adapter->params.pci.vpd_cap_addr;
664 if ((addr >= EEPROMSIZE && addr != EEPROM_STAT_ADDR) || (addr & 3))
667 t3_os_pci_write_config_2(adapter, base + PCI_VPD_ADDR, (u16)addr);
670 t3_os_pci_read_config_2(adapter, base + PCI_VPD_ADDR, &val);
671 } while (!(val & PCI_VPD_ADDR_F) && --attempts);
673 if (!(val & PCI_VPD_ADDR_F)) {
674 CH_ERR(adapter, "reading EEPROM address 0x%x failed\n", addr);
677 t3_os_pci_read_config_4(adapter, base + PCI_VPD_DATA, data);
678 *data = le32_to_cpu(*data);
683 * t3_seeprom_write - write a VPD EEPROM location
684 * @adapter: adapter to write
685 * @addr: EEPROM address
686 * @data: value to write
688 * Write a 32-bit word to a location in VPD EEPROM using the card's PCI
689 * VPD ROM capability.
691 int t3_seeprom_write(adapter_t *adapter, u32 addr, u32 data)
694 int attempts = EEPROM_MAX_POLL;
695 unsigned int base = adapter->params.pci.vpd_cap_addr;
697 if ((addr >= EEPROMSIZE && addr != EEPROM_STAT_ADDR) || (addr & 3))
700 t3_os_pci_write_config_4(adapter, base + PCI_VPD_DATA,
702 t3_os_pci_write_config_2(adapter, base + PCI_VPD_ADDR,
703 (u16)addr | PCI_VPD_ADDR_F);
706 t3_os_pci_read_config_2(adapter, base + PCI_VPD_ADDR, &val);
707 } while ((val & PCI_VPD_ADDR_F) && --attempts);
709 if (val & PCI_VPD_ADDR_F) {
710 CH_ERR(adapter, "write to EEPROM address 0x%x failed\n", addr);
717 * t3_seeprom_wp - enable/disable EEPROM write protection
718 * @adapter: the adapter
719 * @enable: 1 to enable write protection, 0 to disable it
721 * Enables or disables write protection on the serial EEPROM.
723 int t3_seeprom_wp(adapter_t *adapter, int enable)
725 return t3_seeprom_write(adapter, EEPROM_STAT_ADDR, enable ? 0xc : 0);
729 * Convert a character holding a hex digit to a number.
731 static unsigned int hex2int(unsigned char c)
733 return isdigit(c) ? c - '0' : toupper(c) - 'A' + 10;
737 * get_desc_len - get the length of a vpd descriptor.
738 * @adapter: the adapter
739 * @offset: first byte offset of the vpd descriptor
741 * Retrieves the length of the small/large resource
742 * data type starting at offset.
744 static int get_desc_len(adapter_t *adapter, u32 offset)
746 u32 read_offset, tmp, shift, len = 0;
750 read_offset = offset & 0xfffffffc;
751 shift = offset & 0x03;
753 ret = t3_seeprom_read(adapter, read_offset, &tmp);
757 *((u32 *)buf) = cpu_to_le32(tmp);
761 ret = t3_seeprom_read(adapter, read_offset + 4, &tmp);
765 *((u32 *)(&buf[4])) = cpu_to_le32(tmp);
766 len = (buf[shift + 1] & 0xff) +
767 ((buf[shift+2] << 8) & 0xff00) + 3;
769 len = (tag & 0x07) + 1;
775 * is_end_tag - Check if a vpd tag is the end tag.
776 * @adapter: the adapter
777 * @offset: first byte offset of the tag
779 * Checks if the tag located at offset is the end tag.
781 static int is_end_tag(adapter_t * adapter, u32 offset)
783 u32 read_offset, shift, ret, tmp;
786 read_offset = offset & 0xfffffffc;
787 shift = offset & 0x03;
789 ret = t3_seeprom_read(adapter, read_offset, &tmp);
792 *((u32 *)buf) = cpu_to_le32(tmp);
794 if (buf[shift] == 0x78)
801 * t3_get_vpd_len - computes the length of a vpd structure
802 * @adapter: the adapter
803 * @vpd: contains the offset of first byte of vpd
805 * Computes the lentgh of the vpd structure starting at vpd->offset.
808 int t3_get_vpd_len(adapter_t * adapter, struct generic_vpd *vpd)
813 offset = vpd->offset;
815 while (offset < (vpd->offset + MAX_VPD_BYTES)) {
816 ret = is_end_tag(adapter, offset);
822 inc = get_desc_len(adapter, offset);
832 * t3_read_vpd - reads the stream of bytes containing a vpd structure
833 * @adapter: the adapter
834 * @vpd: contains a buffer that would hold the stream of bytes
836 * Reads the vpd structure starting at vpd->offset into vpd->data,
837 * the length of the byte stream to read is vpd->len.
840 int t3_read_vpd(adapter_t *adapter, struct generic_vpd *vpd)
844 for (i = 0; i < vpd->len; i += 4) {
845 ret = t3_seeprom_read(adapter, vpd->offset + i,
846 (u32 *) &(vpd->data[i]));
856 * get_vpd_params - read VPD parameters from VPD EEPROM
857 * @adapter: adapter to read
858 * @p: where to store the parameters
860 * Reads card parameters stored in VPD EEPROM.
862 static int get_vpd_params(adapter_t *adapter, struct vpd_params *p)
868 * Card information is normally at VPD_BASE but some early cards had
871 ret = t3_seeprom_read(adapter, VPD_BASE, (u32 *)&vpd);
874 addr = vpd.id_tag == 0x82 ? VPD_BASE : 0;
876 for (i = 0; i < sizeof(vpd); i += 4) {
877 ret = t3_seeprom_read(adapter, addr + i,
878 (u32 *)((u8 *)&vpd + i));
883 p->cclk = simple_strtoul(vpd.cclk_data, NULL, 10);
884 p->mclk = simple_strtoul(vpd.mclk_data, NULL, 10);
885 p->uclk = simple_strtoul(vpd.uclk_data, NULL, 10);
886 p->mdc = simple_strtoul(vpd.mdc_data, NULL, 10);
887 p->mem_timing = simple_strtoul(vpd.mt_data, NULL, 10);
888 memcpy(p->sn, vpd.sn_data, SERNUM_LEN);
889 memcpy(p->ec, vpd.ec_data, ECNUM_LEN);
891 /* Old eeproms didn't have port information */
892 if (adapter->params.rev == 0 && !vpd.port0_data[0]) {
893 p->port_type[0] = uses_xaui(adapter) ? 1 : 2;
894 p->port_type[1] = uses_xaui(adapter) ? 6 : 2;
896 p->port_type[0] = (u8)hex2int(vpd.port0_data[0]);
897 p->port_type[1] = (u8)hex2int(vpd.port1_data[0]);
898 p->port_type[2] = (u8)hex2int(vpd.port2_data[0]);
899 p->port_type[3] = (u8)hex2int(vpd.port3_data[0]);
900 p->xauicfg[0] = simple_strtoul(vpd.xaui0cfg_data, NULL, 16);
901 p->xauicfg[1] = simple_strtoul(vpd.xaui1cfg_data, NULL, 16);
904 for (i = 0; i < 6; i++)
905 p->eth_base[i] = hex2int(vpd.na_data[2 * i]) * 16 +
906 hex2int(vpd.na_data[2 * i + 1]);
910 /* BIOS boot header */
911 typedef struct boot_header_s {
912 u8 signature[2]; /* signature */
913 u8 length; /* image length (include header) */
914 u8 offset[4]; /* initialization vector */
915 u8 reserved[19]; /* reserved */
916 u8 exheader[2]; /* offset to expansion header */
919 /* serial flash and firmware constants */
921 SF_ATTEMPTS = 5, /* max retries for SF1 operations */
922 SF_SEC_SIZE = 64 * 1024, /* serial flash sector size */
923 SF_SIZE = SF_SEC_SIZE * 8, /* serial flash size */
925 /* flash command opcodes */
926 SF_PROG_PAGE = 2, /* program page */
927 SF_WR_DISABLE = 4, /* disable writes */
928 SF_RD_STATUS = 5, /* read status register */
929 SF_WR_ENABLE = 6, /* enable writes */
930 SF_RD_DATA_FAST = 0xb, /* read flash */
931 SF_ERASE_SECTOR = 0xd8, /* erase sector */
933 FW_FLASH_BOOT_ADDR = 0x70000, /* start address of FW in flash */
934 FW_VERS_ADDR = 0x7fffc, /* flash address holding FW version */
935 FW_VERS_ADDR_PRE8 = 0x77ffc,/* flash address holding FW version pre8 */
936 FW_MIN_SIZE = 8, /* at least version and csum */
937 FW_MAX_SIZE = FW_VERS_ADDR - FW_FLASH_BOOT_ADDR,
938 FW_MAX_SIZE_PRE8 = FW_VERS_ADDR_PRE8 - FW_FLASH_BOOT_ADDR,
940 BOOT_FLASH_BOOT_ADDR = 0x0,/* start address of boot image in flash */
941 BOOT_SIGNATURE = 0xaa55, /* signature of BIOS boot ROM */
942 BOOT_SIZE_INC = 512, /* image size measured in 512B chunks */
943 BOOT_MIN_SIZE = sizeof(boot_header_t), /* at least basic header */
944 BOOT_MAX_SIZE = 1024*BOOT_SIZE_INC /* 1 byte * length increment */
948 * sf1_read - read data from the serial flash
949 * @adapter: the adapter
950 * @byte_cnt: number of bytes to read
951 * @cont: whether another operation will be chained
952 * @valp: where to store the read data
954 * Reads up to 4 bytes of data from the serial flash. The location of
955 * the read needs to be specified prior to calling this by issuing the
956 * appropriate commands to the serial flash.
958 static int sf1_read(adapter_t *adapter, unsigned int byte_cnt, int cont,
963 if (!byte_cnt || byte_cnt > 4)
965 if (t3_read_reg(adapter, A_SF_OP) & F_BUSY)
967 t3_write_reg(adapter, A_SF_OP, V_CONT(cont) | V_BYTECNT(byte_cnt - 1));
968 ret = t3_wait_op_done(adapter, A_SF_OP, F_BUSY, 0, SF_ATTEMPTS, 10);
970 *valp = t3_read_reg(adapter, A_SF_DATA);
975 * sf1_write - write data to the serial flash
976 * @adapter: the adapter
977 * @byte_cnt: number of bytes to write
978 * @cont: whether another operation will be chained
979 * @val: value to write
981 * Writes up to 4 bytes of data to the serial flash. The location of
982 * the write needs to be specified prior to calling this by issuing the
983 * appropriate commands to the serial flash.
985 static int sf1_write(adapter_t *adapter, unsigned int byte_cnt, int cont,
988 if (!byte_cnt || byte_cnt > 4)
990 if (t3_read_reg(adapter, A_SF_OP) & F_BUSY)
992 t3_write_reg(adapter, A_SF_DATA, val);
993 t3_write_reg(adapter, A_SF_OP,
994 V_CONT(cont) | V_BYTECNT(byte_cnt - 1) | V_OP(1));
995 return t3_wait_op_done(adapter, A_SF_OP, F_BUSY, 0, SF_ATTEMPTS, 10);
999 * flash_wait_op - wait for a flash operation to complete
1000 * @adapter: the adapter
1001 * @attempts: max number of polls of the status register
1002 * @delay: delay between polls in ms
1004 * Wait for a flash operation to complete by polling the status register.
1006 static int flash_wait_op(adapter_t *adapter, int attempts, int delay)
1012 if ((ret = sf1_write(adapter, 1, 1, SF_RD_STATUS)) != 0 ||
1013 (ret = sf1_read(adapter, 1, 0, &status)) != 0)
1017 if (--attempts == 0)
1025 * t3_read_flash - read words from serial flash
1026 * @adapter: the adapter
1027 * @addr: the start address for the read
1028 * @nwords: how many 32-bit words to read
1029 * @data: where to store the read data
1030 * @byte_oriented: whether to store data as bytes or as words
1032 * Read the specified number of 32-bit words from the serial flash.
1033 * If @byte_oriented is set the read data is stored as a byte array
1034 * (i.e., big-endian), otherwise as 32-bit words in the platform's
1035 * natural endianness.
1037 int t3_read_flash(adapter_t *adapter, unsigned int addr, unsigned int nwords,
1038 u32 *data, int byte_oriented)
1042 if (addr + nwords * sizeof(u32) > SF_SIZE || (addr & 3))
1045 addr = swab32(addr) | SF_RD_DATA_FAST;
1047 if ((ret = sf1_write(adapter, 4, 1, addr)) != 0 ||
1048 (ret = sf1_read(adapter, 1, 1, data)) != 0)
1051 for ( ; nwords; nwords--, data++) {
1052 ret = sf1_read(adapter, 4, nwords > 1, data);
1056 *data = htonl(*data);
1062 * t3_write_flash - write up to a page of data to the serial flash
1063 * @adapter: the adapter
1064 * @addr: the start address to write
1065 * @n: length of data to write
1066 * @data: the data to write
1067 * @byte_oriented: whether to store data as bytes or as words
1069 * Writes up to a page of data (256 bytes) to the serial flash starting
1070 * at the given address.
1071 * If @byte_oriented is set the write data is stored as a 32-bit
1072 * big-endian array, otherwise in the processor's native endianness.
1075 static int t3_write_flash(adapter_t *adapter, unsigned int addr,
1076 unsigned int n, const u8 *data,
1081 unsigned int c, left, val, offset = addr & 0xff;
1083 if (addr + n > SF_SIZE || offset + n > 256)
1086 val = swab32(addr) | SF_PROG_PAGE;
1088 if ((ret = sf1_write(adapter, 1, 0, SF_WR_ENABLE)) != 0 ||
1089 (ret = sf1_write(adapter, 4, 1, val)) != 0)
1092 for (left = n; left; left -= c) {
1094 val = *(const u32*)data;
1099 ret = sf1_write(adapter, c, c != left, val);
1103 if ((ret = flash_wait_op(adapter, 5, 1)) != 0)
1106 /* Read the page to verify the write succeeded */
1107 ret = t3_read_flash(adapter, addr & ~0xff, ARRAY_SIZE(buf), buf,
1112 if (memcmp(data - n, (u8 *)buf + offset, n))
1118 * t3_get_tp_version - read the tp sram version
1119 * @adapter: the adapter
1120 * @vers: where to place the version
1122 * Reads the protocol sram version from sram.
1124 int t3_get_tp_version(adapter_t *adapter, u32 *vers)
1128 /* Get version loaded in SRAM */
1129 t3_write_reg(adapter, A_TP_EMBED_OP_FIELD0, 0);
1130 ret = t3_wait_op_done(adapter, A_TP_EMBED_OP_FIELD0,
1135 *vers = t3_read_reg(adapter, A_TP_EMBED_OP_FIELD1);
1141 * t3_check_tpsram_version - read the tp sram version
1142 * @adapter: the adapter
1145 int t3_check_tpsram_version(adapter_t *adapter)
1149 unsigned int major, minor;
1151 if (adapter->params.rev == T3_REV_A)
1155 ret = t3_get_tp_version(adapter, &vers);
1159 vers = t3_read_reg(adapter, A_TP_EMBED_OP_FIELD1);
1161 major = G_TP_VERSION_MAJOR(vers);
1162 minor = G_TP_VERSION_MINOR(vers);
1164 if (major == TP_VERSION_MAJOR && minor == TP_VERSION_MINOR)
1167 CH_ERR(adapter, "found wrong TP version (%u.%u), "
1168 "driver compiled for version %d.%d\n", major, minor,
1169 TP_VERSION_MAJOR, TP_VERSION_MINOR);
1175 * t3_check_tpsram - check if provided protocol SRAM
1176 * is compatible with this driver
1177 * @adapter: the adapter
1178 * @tp_sram: the firmware image to write
1181 * Checks if an adapter's tp sram is compatible with the driver.
1182 * Returns 0 if the versions are compatible, a negative error otherwise.
1184 int t3_check_tpsram(adapter_t *adapter, const u8 *tp_sram, unsigned int size)
1188 const u32 *p = (const u32 *)tp_sram;
1190 /* Verify checksum */
1191 for (csum = 0, i = 0; i < size / sizeof(csum); i++)
1192 csum += ntohl(p[i]);
1193 if (csum != 0xffffffff) {
1194 CH_ERR(adapter, "corrupted protocol SRAM image, checksum %u\n",
1202 enum fw_version_type {
1208 * t3_get_fw_version - read the firmware version
1209 * @adapter: the adapter
1210 * @vers: where to place the version
1212 * Reads the FW version from flash. Note that we had to move the version
1213 * due to FW size. If we don't find a valid FW version in the new location
1214 * we fall back and read the old location.
1216 int t3_get_fw_version(adapter_t *adapter, u32 *vers)
1218 int ret = t3_read_flash(adapter, FW_VERS_ADDR, 1, vers, 0);
1219 if (!ret && *vers != 0xffffffff)
1222 return t3_read_flash(adapter, FW_VERS_ADDR_PRE8, 1, vers, 0);
1226 * t3_check_fw_version - check if the FW is compatible with this driver
1227 * @adapter: the adapter
1229 * Checks if an adapter's FW is compatible with the driver. Returns 0
1230 * if the versions are compatible, a negative error otherwise.
1232 int t3_check_fw_version(adapter_t *adapter)
1236 unsigned int type, major, minor;
1238 ret = t3_get_fw_version(adapter, &vers);
1242 type = G_FW_VERSION_TYPE(vers);
1243 major = G_FW_VERSION_MAJOR(vers);
1244 minor = G_FW_VERSION_MINOR(vers);
1246 if (type == FW_VERSION_T3 && major == FW_VERSION_MAJOR &&
1247 minor == FW_VERSION_MINOR)
1250 else if (major != FW_VERSION_MAJOR || minor < FW_VERSION_MINOR)
1251 CH_WARN(adapter, "found old FW minor version(%u.%u), "
1252 "driver compiled for version %u.%u\n", major, minor,
1253 FW_VERSION_MAJOR, FW_VERSION_MINOR);
1255 CH_WARN(adapter, "found newer FW version(%u.%u), "
1256 "driver compiled for version %u.%u\n", major, minor,
1257 FW_VERSION_MAJOR, FW_VERSION_MINOR);
1264 * t3_flash_erase_sectors - erase a range of flash sectors
1265 * @adapter: the adapter
1266 * @start: the first sector to erase
1267 * @end: the last sector to erase
1269 * Erases the sectors in the given range.
1271 static int t3_flash_erase_sectors(adapter_t *adapter, int start, int end)
1273 while (start <= end) {
1276 if ((ret = sf1_write(adapter, 1, 0, SF_WR_ENABLE)) != 0 ||
1277 (ret = sf1_write(adapter, 4, 0,
1278 SF_ERASE_SECTOR | (start << 8))) != 0 ||
1279 (ret = flash_wait_op(adapter, 5, 500)) != 0)
1287 * t3_load_fw - download firmware
1288 * @adapter: the adapter
1289 * @fw_data: the firmware image to write
1292 * Write the supplied firmware image to the card's serial flash.
1293 * The FW image has the following sections: @size - 8 bytes of code and
1294 * data, followed by 4 bytes of FW version, followed by the 32-bit
1295 * 1's complement checksum of the whole image.
1297 int t3_load_fw(adapter_t *adapter, const u8 *fw_data, unsigned int size)
1299 u32 version, csum, fw_version_addr;
1301 const u32 *p = (const u32 *)fw_data;
1302 int ret, addr, fw_sector = FW_FLASH_BOOT_ADDR >> 16;
1304 if ((size & 3) || size < FW_MIN_SIZE)
1306 if (size - 8 > FW_MAX_SIZE)
1309 version = ntohl(*(const u32 *)(fw_data + size - 8));
1310 if (G_FW_VERSION_MAJOR(version) < 8) {
1312 fw_version_addr = FW_VERS_ADDR_PRE8;
1314 if (size - 8 > FW_MAX_SIZE_PRE8)
1317 fw_version_addr = FW_VERS_ADDR;
1319 for (csum = 0, i = 0; i < size / sizeof(csum); i++)
1320 csum += ntohl(p[i]);
1321 if (csum != 0xffffffff) {
1322 CH_ERR(adapter, "corrupted firmware image, checksum %u\n",
1327 ret = t3_flash_erase_sectors(adapter, fw_sector, fw_sector);
1331 size -= 8; /* trim off version and checksum */
1332 for (addr = FW_FLASH_BOOT_ADDR; size; ) {
1333 unsigned int chunk_size = min(size, 256U);
1335 ret = t3_write_flash(adapter, addr, chunk_size, fw_data, 1);
1340 fw_data += chunk_size;
1344 ret = t3_write_flash(adapter, fw_version_addr, 4, fw_data, 1);
1347 CH_ERR(adapter, "firmware download failed, error %d\n", ret);
1352 * t3_load_boot - download boot flash
1353 * @adapter: the adapter
1354 * @boot_data: the boot image to write
1357 * Write the supplied boot image to the card's serial flash.
1358 * The boot image has the following sections: a 28-byte header and the
1361 int t3_load_boot(adapter_t *adapter, u8 *boot_data, unsigned int size)
1363 boot_header_t *header = (boot_header_t *)boot_data;
1366 unsigned int boot_sector = BOOT_FLASH_BOOT_ADDR >> 16;
1367 unsigned int boot_end = (BOOT_FLASH_BOOT_ADDR + size - 1) >> 16;
1370 * Perform some primitive sanity testing to avoid accidentally
1371 * writing garbage over the boot sectors. We ought to check for
1372 * more but it's not worth it for now ...
1374 if (size < BOOT_MIN_SIZE || size > BOOT_MAX_SIZE) {
1375 CH_ERR(adapter, "boot image too small/large\n");
1378 if (le16_to_cpu(*(u16*)header->signature) != BOOT_SIGNATURE) {
1379 CH_ERR(adapter, "boot image missing signature\n");
1382 if (header->length * BOOT_SIZE_INC != size) {
1383 CH_ERR(adapter, "boot image header length != image length\n");
1387 ret = t3_flash_erase_sectors(adapter, boot_sector, boot_end);
1391 for (addr = BOOT_FLASH_BOOT_ADDR; size; ) {
1392 unsigned int chunk_size = min(size, 256U);
1394 ret = t3_write_flash(adapter, addr, chunk_size, boot_data, 0);
1399 boot_data += chunk_size;
1405 CH_ERR(adapter, "boot image download failed, error %d\n", ret);
1409 #define CIM_CTL_BASE 0x2000
1412 * t3_cim_ctl_blk_read - read a block from CIM control region
1413 * @adap: the adapter
1414 * @addr: the start address within the CIM control region
1415 * @n: number of words to read
1416 * @valp: where to store the result
1418 * Reads a block of 4-byte words from the CIM control region.
1420 int t3_cim_ctl_blk_read(adapter_t *adap, unsigned int addr, unsigned int n,
1425 if (t3_read_reg(adap, A_CIM_HOST_ACC_CTRL) & F_HOSTBUSY)
1428 for ( ; !ret && n--; addr += 4) {
1429 t3_write_reg(adap, A_CIM_HOST_ACC_CTRL, CIM_CTL_BASE + addr);
1430 ret = t3_wait_op_done(adap, A_CIM_HOST_ACC_CTRL, F_HOSTBUSY,
1433 *valp++ = t3_read_reg(adap, A_CIM_HOST_ACC_DATA);
1438 static void t3_gate_rx_traffic(struct cmac *mac, u32 *rx_cfg,
1439 u32 *rx_hash_high, u32 *rx_hash_low)
1441 /* stop Rx unicast traffic */
1442 t3_mac_disable_exact_filters(mac);
1444 /* stop broadcast, multicast, promiscuous mode traffic */
1445 *rx_cfg = t3_read_reg(mac->adapter, A_XGM_RX_CFG + mac->offset);
1446 t3_set_reg_field(mac->adapter, A_XGM_RX_CFG + mac->offset,
1447 F_ENHASHMCAST | F_DISBCAST | F_COPYALLFRAMES,
1450 *rx_hash_high = t3_read_reg(mac->adapter, A_XGM_RX_HASH_HIGH +
1452 t3_write_reg(mac->adapter, A_XGM_RX_HASH_HIGH + mac->offset, 0);
1454 *rx_hash_low = t3_read_reg(mac->adapter, A_XGM_RX_HASH_LOW +
1456 t3_write_reg(mac->adapter, A_XGM_RX_HASH_LOW + mac->offset, 0);
1458 /* Leave time to drain max RX fifo */
1462 static void t3_open_rx_traffic(struct cmac *mac, u32 rx_cfg,
1463 u32 rx_hash_high, u32 rx_hash_low)
1465 t3_mac_enable_exact_filters(mac);
1466 t3_set_reg_field(mac->adapter, A_XGM_RX_CFG + mac->offset,
1467 F_ENHASHMCAST | F_DISBCAST | F_COPYALLFRAMES,
1469 t3_write_reg(mac->adapter, A_XGM_RX_HASH_HIGH + mac->offset,
1471 t3_write_reg(mac->adapter, A_XGM_RX_HASH_LOW + mac->offset,
1475 static int t3_detect_link_fault(adapter_t *adapter, int port_id)
1477 struct port_info *pi = adap2pinfo(adapter, port_id);
1478 struct cmac *mac = &pi->mac;
1479 uint32_t rx_cfg, rx_hash_high, rx_hash_low;
1483 t3_gate_rx_traffic(mac, &rx_cfg, &rx_hash_high, &rx_hash_low);
1484 t3_write_reg(adapter, A_XGM_RX_CTRL + mac->offset, 0);
1486 /* clear status and make sure intr is enabled */
1487 (void) t3_read_reg(adapter, A_XGM_INT_STATUS + mac->offset);
1488 t3_xgm_intr_enable(adapter, port_id);
1491 t3_write_reg(adapter, A_XGM_RX_CTRL + mac->offset, F_RXEN);
1492 t3_open_rx_traffic(mac, rx_cfg, rx_hash_high, rx_hash_low);
1494 link_fault = t3_read_reg(adapter, A_XGM_INT_STATUS + mac->offset);
1495 return (link_fault & F_LINKFAULTCHANGE ? 1 : 0);
1498 static void t3_clear_faults(adapter_t *adapter, int port_id)
1500 struct port_info *pi = adap2pinfo(adapter, port_id);
1501 struct cmac *mac = &pi->mac;
1503 if (adapter->params.nports <= 2) {
1504 t3_xgm_intr_disable(adapter, pi->port_id);
1505 t3_read_reg(adapter, A_XGM_INT_STATUS + mac->offset);
1506 t3_write_reg(adapter, A_XGM_INT_CAUSE + mac->offset, F_XGM_INT);
1507 t3_set_reg_field(adapter, A_XGM_INT_ENABLE + mac->offset,
1508 F_XGM_INT, F_XGM_INT);
1509 t3_xgm_intr_enable(adapter, pi->port_id);
1514 * t3_link_changed - handle interface link changes
1515 * @adapter: the adapter
1516 * @port_id: the port index that changed link state
1518 * Called when a port's link settings change to propagate the new values
1519 * to the associated PHY and MAC. After performing the common tasks it
1520 * invokes an OS-specific handler.
1522 void t3_link_changed(adapter_t *adapter, int port_id)
1524 int link_ok, speed, duplex, fc, link_fault, link_state;
1525 struct port_info *pi = adap2pinfo(adapter, port_id);
1526 struct cphy *phy = &pi->phy;
1527 struct cmac *mac = &pi->mac;
1528 struct link_config *lc = &pi->link_config;
1530 link_ok = lc->link_ok;
1532 duplex = lc->duplex;
1536 phy->ops->get_link_status(phy, &link_state, &speed, &duplex, &fc);
1537 link_ok = (link_state == PHY_LINK_UP);
1538 if (link_state != PHY_LINK_PARTIAL)
1540 else if (++phy->rst == 3) {
1541 phy->ops->reset(phy, 0);
1546 pi->link_fault = LF_NO;
1548 if (lc->requested_fc & PAUSE_AUTONEG)
1549 fc &= lc->requested_fc;
1551 fc = lc->requested_fc & (PAUSE_RX | PAUSE_TX);
1553 /* Update mac speed before checking for link fault. */
1554 if (link_ok && speed >= 0 && lc->autoneg == AUTONEG_ENABLE &&
1555 (speed != lc->speed || duplex != lc->duplex || fc != lc->fc))
1556 t3_mac_set_speed_duplex_fc(mac, speed, duplex, fc);
1559 * Check for link faults if any of these is true:
1560 * a) A link fault is suspected, and PHY says link ok
1561 * b) PHY link transitioned from down -> up
1563 if (adapter->params.nports <= 2 &&
1564 ((pi->link_fault && link_ok) || (!lc->link_ok && link_ok))) {
1566 link_fault = t3_detect_link_fault(adapter, port_id);
1568 if (pi->link_fault != LF_YES) {
1569 mac->stats.link_faults++;
1570 pi->link_fault = LF_YES;
1573 if (uses_xaui(adapter)) {
1574 if (adapter->params.rev >= T3_REV_C)
1575 t3c_pcs_force_los(mac);
1580 /* Don't report link up */
1583 /* clear faults here if this was a false alarm. */
1584 if (pi->link_fault == LF_MAYBE &&
1585 link_ok && lc->link_ok)
1586 t3_clear_faults(adapter, port_id);
1588 pi->link_fault = LF_NO;
1592 if (link_ok == lc->link_ok && speed == lc->speed &&
1593 duplex == lc->duplex && fc == lc->fc)
1594 return; /* nothing changed */
1596 lc->link_ok = (unsigned char)link_ok;
1597 lc->speed = speed < 0 ? SPEED_INVALID : speed;
1598 lc->duplex = duplex < 0 ? DUPLEX_INVALID : duplex;
1603 /* down -> up, or up -> up with changed settings */
1605 if (adapter->params.rev > 0 && uses_xaui(adapter)) {
1607 if (adapter->params.rev >= T3_REV_C)
1608 t3c_pcs_force_los(mac);
1612 t3_write_reg(adapter, A_XGM_XAUI_ACT_CTRL + mac->offset,
1613 F_TXACTENABLE | F_RXEN);
1616 /* disable TX FIFO drain */
1617 t3_set_reg_field(adapter, A_XGM_TXFIFO_CFG + mac->offset,
1620 t3_mac_enable(mac, MAC_DIRECTION_TX | MAC_DIRECTION_RX);
1621 t3_set_reg_field(adapter, A_XGM_STAT_CTRL + mac->offset,
1623 t3_clear_faults(adapter, port_id);
1629 if (adapter->params.rev > 0 && uses_xaui(adapter)) {
1630 t3_write_reg(adapter,
1631 A_XGM_XAUI_ACT_CTRL + mac->offset, 0);
1634 t3_xgm_intr_disable(adapter, pi->port_id);
1635 if (adapter->params.nports <= 2) {
1636 t3_set_reg_field(adapter,
1637 A_XGM_INT_ENABLE + mac->offset,
1640 t3_mac_disable(mac, MAC_DIRECTION_RX);
1643 * Make sure Tx FIFO continues to drain, even as rxen is
1644 * left high to help detect and indicate remote faults.
1646 t3_set_reg_field(adapter,
1647 A_XGM_TXFIFO_CFG + mac->offset, 0, F_ENDROPPKT);
1648 t3_write_reg(adapter, A_XGM_RX_CTRL + mac->offset, 0);
1649 t3_write_reg(adapter,
1650 A_XGM_TX_CTRL + mac->offset, F_TXEN);
1651 t3_write_reg(adapter,
1652 A_XGM_RX_CTRL + mac->offset, F_RXEN);
1656 t3_os_link_changed(adapter, port_id, link_ok, speed, duplex, fc,
1662 * t3_link_start - apply link configuration to MAC/PHY
1663 * @phy: the PHY to setup
1664 * @mac: the MAC to setup
1665 * @lc: the requested link configuration
1667 * Set up a port's MAC and PHY according to a desired link configuration.
1668 * - If the PHY can auto-negotiate first decide what to advertise, then
1669 * enable/disable auto-negotiation as desired, and reset.
1670 * - If the PHY does not auto-negotiate just reset it.
1671 * - If auto-negotiation is off set the MAC to the proper speed/duplex/FC,
1672 * otherwise do it later based on the outcome of auto-negotiation.
1674 int t3_link_start(struct cphy *phy, struct cmac *mac, struct link_config *lc)
1676 unsigned int fc = lc->requested_fc & (PAUSE_RX | PAUSE_TX);
1679 if (lc->supported & SUPPORTED_Autoneg) {
1680 lc->advertising &= ~(ADVERTISED_Asym_Pause | ADVERTISED_Pause);
1682 lc->advertising |= ADVERTISED_Asym_Pause;
1684 lc->advertising |= ADVERTISED_Pause;
1687 phy->ops->advertise(phy, lc->advertising);
1689 if (lc->autoneg == AUTONEG_DISABLE) {
1690 lc->speed = lc->requested_speed;
1691 lc->duplex = lc->requested_duplex;
1692 lc->fc = (unsigned char)fc;
1693 t3_mac_set_speed_duplex_fc(mac, lc->speed, lc->duplex,
1695 /* Also disables autoneg */
1696 phy->ops->set_speed_duplex(phy, lc->speed, lc->duplex);
1697 /* PR 5666. Power phy up when doing an ifup */
1698 if (!is_10G(phy->adapter))
1699 phy->ops->power_down(phy, 0);
1701 phy->ops->autoneg_enable(phy);
1703 t3_mac_set_speed_duplex_fc(mac, -1, -1, fc);
1704 lc->fc = (unsigned char)fc;
1705 phy->ops->reset(phy, 0);
1711 * t3_set_vlan_accel - control HW VLAN extraction
1712 * @adapter: the adapter
1713 * @ports: bitmap of adapter ports to operate on
1714 * @on: enable (1) or disable (0) HW VLAN extraction
1716 * Enables or disables HW extraction of VLAN tags for the given port.
1718 void t3_set_vlan_accel(adapter_t *adapter, unsigned int ports, int on)
1720 t3_set_reg_field(adapter, A_TP_OUT_CONFIG,
1721 ports << S_VLANEXTRACTIONENABLE,
1722 on ? (ports << S_VLANEXTRACTIONENABLE) : 0);
1726 unsigned int mask; /* bits to check in interrupt status */
1727 const char *msg; /* message to print or NULL */
1728 short stat_idx; /* stat counter to increment or -1 */
1729 unsigned short fatal; /* whether the condition reported is fatal */
1733 * t3_handle_intr_status - table driven interrupt handler
1734 * @adapter: the adapter that generated the interrupt
1735 * @reg: the interrupt status register to process
1736 * @mask: a mask to apply to the interrupt status
1737 * @acts: table of interrupt actions
1738 * @stats: statistics counters tracking interrupt occurrences
1740 * A table driven interrupt handler that applies a set of masks to an
1741 * interrupt status word and performs the corresponding actions if the
1742 * interrupts described by the mask have occurred. The actions include
1743 * optionally printing a warning or alert message, and optionally
1744 * incrementing a stat counter. The table is terminated by an entry
1745 * specifying mask 0. Returns the number of fatal interrupt conditions.
1747 static int t3_handle_intr_status(adapter_t *adapter, unsigned int reg,
1749 const struct intr_info *acts,
1750 unsigned long *stats)
1753 unsigned int status = t3_read_reg(adapter, reg) & mask;
1755 for ( ; acts->mask; ++acts) {
1756 if (!(status & acts->mask)) continue;
1759 CH_ALERT(adapter, "%s (0x%x)\n",
1760 acts->msg, status & acts->mask);
1761 status &= ~acts->mask;
1762 } else if (acts->msg)
1763 CH_WARN(adapter, "%s (0x%x)\n",
1764 acts->msg, status & acts->mask);
1765 if (acts->stat_idx >= 0)
1766 stats[acts->stat_idx]++;
1768 if (status) /* clear processed interrupts */
1769 t3_write_reg(adapter, reg, status);
1773 #define SGE_INTR_MASK (F_RSPQDISABLED | \
1774 F_UC_REQ_FRAMINGERROR | F_R_REQ_FRAMINGERROR | \
1775 F_CPPARITYERROR | F_OCPARITYERROR | F_RCPARITYERROR | \
1776 F_IRPARITYERROR | V_ITPARITYERROR(M_ITPARITYERROR) | \
1777 V_FLPARITYERROR(M_FLPARITYERROR) | F_LODRBPARITYERROR | \
1778 F_HIDRBPARITYERROR | F_LORCQPARITYERROR | \
1780 #define MC5_INTR_MASK (F_PARITYERR | F_ACTRGNFULL | F_UNKNOWNCMD | \
1781 F_REQQPARERR | F_DISPQPARERR | F_DELACTEMPTY | \
1783 #define MC7_INTR_MASK (F_AE | F_UE | F_CE | V_PE(M_PE))
1784 #define XGM_INTR_MASK (V_TXFIFO_PRTY_ERR(M_TXFIFO_PRTY_ERR) | \
1785 V_RXFIFO_PRTY_ERR(M_RXFIFO_PRTY_ERR) | \
1787 #define PCIX_INTR_MASK (F_MSTDETPARERR | F_SIGTARABT | F_RCVTARABT | \
1788 F_RCVMSTABT | F_SIGSYSERR | F_DETPARERR | \
1789 F_SPLCMPDIS | F_UNXSPLCMP | F_RCVSPLCMPERR | \
1790 F_DETCORECCERR | F_DETUNCECCERR | F_PIOPARERR | \
1791 V_WFPARERR(M_WFPARERR) | V_RFPARERR(M_RFPARERR) | \
1792 V_CFPARERR(M_CFPARERR) /* | V_MSIXPARERR(M_MSIXPARERR) */)
1793 #define PCIE_INTR_MASK (F_UNXSPLCPLERRR | F_UNXSPLCPLERRC | F_PCIE_PIOPARERR |\
1794 F_PCIE_WFPARERR | F_PCIE_RFPARERR | F_PCIE_CFPARERR | \
1795 /* V_PCIE_MSIXPARERR(M_PCIE_MSIXPARERR) | */ \
1796 F_RETRYBUFPARERR | F_RETRYLUTPARERR | F_RXPARERR | \
1797 F_TXPARERR | V_BISTERR(M_BISTERR))
1798 #define ULPRX_INTR_MASK (F_PARERRDATA | F_PARERRPCMD | F_ARBPF1PERR | \
1799 F_ARBPF0PERR | F_ARBFPERR | F_PCMDMUXPERR | \
1800 F_DATASELFRAMEERR1 | F_DATASELFRAMEERR0)
1801 #define ULPTX_INTR_MASK 0xfc
1802 #define CPLSW_INTR_MASK (F_CIM_OP_MAP_PERR | F_TP_FRAMING_ERROR | \
1803 F_SGE_FRAMING_ERROR | F_CIM_FRAMING_ERROR | \
1804 F_ZERO_SWITCH_ERROR)
1805 #define CIM_INTR_MASK (F_BLKWRPLINT | F_BLKRDPLINT | F_BLKWRCTLINT | \
1806 F_BLKRDCTLINT | F_BLKWRFLASHINT | F_BLKRDFLASHINT | \
1807 F_SGLWRFLASHINT | F_WRBLKFLASHINT | F_BLKWRBOOTINT | \
1808 F_FLASHRANGEINT | F_SDRAMRANGEINT | F_RSVDSPACEINT | \
1809 F_DRAMPARERR | F_ICACHEPARERR | F_DCACHEPARERR | \
1810 F_OBQSGEPARERR | F_OBQULPHIPARERR | F_OBQULPLOPARERR | \
1811 F_IBQSGELOPARERR | F_IBQSGEHIPARERR | F_IBQULPPARERR | \
1812 F_IBQTPPARERR | F_ITAGPARERR | F_DTAGPARERR)
1813 #define PMTX_INTR_MASK (F_ZERO_C_CMD_ERROR | ICSPI_FRM_ERR | OESPI_FRM_ERR | \
1814 V_ICSPI_PAR_ERROR(M_ICSPI_PAR_ERROR) | \
1815 V_OESPI_PAR_ERROR(M_OESPI_PAR_ERROR))
1816 #define PMRX_INTR_MASK (F_ZERO_E_CMD_ERROR | IESPI_FRM_ERR | OCSPI_FRM_ERR | \
1817 V_IESPI_PAR_ERROR(M_IESPI_PAR_ERROR) | \
1818 V_OCSPI_PAR_ERROR(M_OCSPI_PAR_ERROR))
1819 #define MPS_INTR_MASK (V_TX0TPPARERRENB(M_TX0TPPARERRENB) | \
1820 V_TX1TPPARERRENB(M_TX1TPPARERRENB) | \
1821 V_RXTPPARERRENB(M_RXTPPARERRENB) | \
1822 V_MCAPARERRENB(M_MCAPARERRENB))
1823 #define XGM_EXTRA_INTR_MASK (F_LINKFAULTCHANGE)
1824 #define PL_INTR_MASK (F_T3DBG | F_XGMAC0_0 | F_XGMAC0_1 | F_MC5A | F_PM1_TX | \
1825 F_PM1_RX | F_ULP2_TX | F_ULP2_RX | F_TP1 | F_CIM | \
1826 F_MC7_CM | F_MC7_PMTX | F_MC7_PMRX | F_SGE3 | F_PCIM0 | \
1827 F_MPS0 | F_CPL_SWITCH)
1829 * Interrupt handler for the PCIX1 module.
1831 static void pci_intr_handler(adapter_t *adapter)
1833 static struct intr_info pcix1_intr_info[] = {
1834 { F_MSTDETPARERR, "PCI master detected parity error", -1, 1 },
1835 { F_SIGTARABT, "PCI signaled target abort", -1, 1 },
1836 { F_RCVTARABT, "PCI received target abort", -1, 1 },
1837 { F_RCVMSTABT, "PCI received master abort", -1, 1 },
1838 { F_SIGSYSERR, "PCI signaled system error", -1, 1 },
1839 { F_DETPARERR, "PCI detected parity error", -1, 1 },
1840 { F_SPLCMPDIS, "PCI split completion discarded", -1, 1 },
1841 { F_UNXSPLCMP, "PCI unexpected split completion error", -1, 1 },
1842 { F_RCVSPLCMPERR, "PCI received split completion error", -1,
1844 { F_DETCORECCERR, "PCI correctable ECC error",
1845 STAT_PCI_CORR_ECC, 0 },
1846 { F_DETUNCECCERR, "PCI uncorrectable ECC error", -1, 1 },
1847 { F_PIOPARERR, "PCI PIO FIFO parity error", -1, 1 },
1848 { V_WFPARERR(M_WFPARERR), "PCI write FIFO parity error", -1,
1850 { V_RFPARERR(M_RFPARERR), "PCI read FIFO parity error", -1,
1852 { V_CFPARERR(M_CFPARERR), "PCI command FIFO parity error", -1,
1854 { V_MSIXPARERR(M_MSIXPARERR), "PCI MSI-X table/PBA parity "
1859 if (t3_handle_intr_status(adapter, A_PCIX_INT_CAUSE, PCIX_INTR_MASK,
1860 pcix1_intr_info, adapter->irq_stats))
1861 t3_fatal_err(adapter);
1865 * Interrupt handler for the PCIE module.
1867 static void pcie_intr_handler(adapter_t *adapter)
1869 static struct intr_info pcie_intr_info[] = {
1870 { F_PEXERR, "PCI PEX error", -1, 1 },
1872 "PCI unexpected split completion DMA read error", -1, 1 },
1874 "PCI unexpected split completion DMA command error", -1, 1 },
1875 { F_PCIE_PIOPARERR, "PCI PIO FIFO parity error", -1, 1 },
1876 { F_PCIE_WFPARERR, "PCI write FIFO parity error", -1, 1 },
1877 { F_PCIE_RFPARERR, "PCI read FIFO parity error", -1, 1 },
1878 { F_PCIE_CFPARERR, "PCI command FIFO parity error", -1, 1 },
1879 { V_PCIE_MSIXPARERR(M_PCIE_MSIXPARERR),
1880 "PCI MSI-X table/PBA parity error", -1, 1 },
1881 { F_RETRYBUFPARERR, "PCI retry buffer parity error", -1, 1 },
1882 { F_RETRYLUTPARERR, "PCI retry LUT parity error", -1, 1 },
1883 { F_RXPARERR, "PCI Rx parity error", -1, 1 },
1884 { F_TXPARERR, "PCI Tx parity error", -1, 1 },
1885 { V_BISTERR(M_BISTERR), "PCI BIST error", -1, 1 },
1889 if (t3_read_reg(adapter, A_PCIE_INT_CAUSE) & F_PEXERR)
1890 CH_ALERT(adapter, "PEX error code 0x%x\n",
1891 t3_read_reg(adapter, A_PCIE_PEX_ERR));
1893 if (t3_handle_intr_status(adapter, A_PCIE_INT_CAUSE, PCIE_INTR_MASK,
1894 pcie_intr_info, adapter->irq_stats))
1895 t3_fatal_err(adapter);
1899 * TP interrupt handler.
1901 static void tp_intr_handler(adapter_t *adapter)
1903 static struct intr_info tp_intr_info[] = {
1904 { 0xffffff, "TP parity error", -1, 1 },
1905 { 0x1000000, "TP out of Rx pages", -1, 1 },
1906 { 0x2000000, "TP out of Tx pages", -1, 1 },
1909 static struct intr_info tp_intr_info_t3c[] = {
1910 { 0x1fffffff, "TP parity error", -1, 1 },
1911 { F_FLMRXFLSTEMPTY, "TP out of Rx pages", -1, 1 },
1912 { F_FLMTXFLSTEMPTY, "TP out of Tx pages", -1, 1 },
1916 if (t3_handle_intr_status(adapter, A_TP_INT_CAUSE, 0xffffffff,
1917 adapter->params.rev < T3_REV_C ?
1918 tp_intr_info : tp_intr_info_t3c, NULL))
1919 t3_fatal_err(adapter);
1923 * CIM interrupt handler.
1925 static void cim_intr_handler(adapter_t *adapter)
1927 static struct intr_info cim_intr_info[] = {
1928 { F_RSVDSPACEINT, "CIM reserved space write", -1, 1 },
1929 { F_SDRAMRANGEINT, "CIM SDRAM address out of range", -1, 1 },
1930 { F_FLASHRANGEINT, "CIM flash address out of range", -1, 1 },
1931 { F_BLKWRBOOTINT, "CIM block write to boot space", -1, 1 },
1932 { F_WRBLKFLASHINT, "CIM write to cached flash space", -1, 1 },
1933 { F_SGLWRFLASHINT, "CIM single write to flash space", -1, 1 },
1934 { F_BLKRDFLASHINT, "CIM block read from flash space", -1, 1 },
1935 { F_BLKWRFLASHINT, "CIM block write to flash space", -1, 1 },
1936 { F_BLKRDCTLINT, "CIM block read from CTL space", -1, 1 },
1937 { F_BLKWRCTLINT, "CIM block write to CTL space", -1, 1 },
1938 { F_BLKRDPLINT, "CIM block read from PL space", -1, 1 },
1939 { F_BLKWRPLINT, "CIM block write to PL space", -1, 1 },
1940 { F_DRAMPARERR, "CIM DRAM parity error", -1, 1 },
1941 { F_ICACHEPARERR, "CIM icache parity error", -1, 1 },
1942 { F_DCACHEPARERR, "CIM dcache parity error", -1, 1 },
1943 { F_OBQSGEPARERR, "CIM OBQ SGE parity error", -1, 1 },
1944 { F_OBQULPHIPARERR, "CIM OBQ ULPHI parity error", -1, 1 },
1945 { F_OBQULPLOPARERR, "CIM OBQ ULPLO parity error", -1, 1 },
1946 { F_IBQSGELOPARERR, "CIM IBQ SGELO parity error", -1, 1 },
1947 { F_IBQSGEHIPARERR, "CIM IBQ SGEHI parity error", -1, 1 },
1948 { F_IBQULPPARERR, "CIM IBQ ULP parity error", -1, 1 },
1949 { F_IBQTPPARERR, "CIM IBQ TP parity error", -1, 1 },
1950 { F_ITAGPARERR, "CIM itag parity error", -1, 1 },
1951 { F_DTAGPARERR, "CIM dtag parity error", -1, 1 },
1955 if (t3_handle_intr_status(adapter, A_CIM_HOST_INT_CAUSE, CIM_INTR_MASK,
1956 cim_intr_info, NULL))
1957 t3_fatal_err(adapter);
1961 * ULP RX interrupt handler.
1963 static void ulprx_intr_handler(adapter_t *adapter)
1965 static struct intr_info ulprx_intr_info[] = {
1966 { F_PARERRDATA, "ULP RX data parity error", -1, 1 },
1967 { F_PARERRPCMD, "ULP RX command parity error", -1, 1 },
1968 { F_ARBPF1PERR, "ULP RX ArbPF1 parity error", -1, 1 },
1969 { F_ARBPF0PERR, "ULP RX ArbPF0 parity error", -1, 1 },
1970 { F_ARBFPERR, "ULP RX ArbF parity error", -1, 1 },
1971 { F_PCMDMUXPERR, "ULP RX PCMDMUX parity error", -1, 1 },
1972 { F_DATASELFRAMEERR1, "ULP RX frame error", -1, 1 },
1973 { F_DATASELFRAMEERR0, "ULP RX frame error", -1, 1 },
1977 if (t3_handle_intr_status(adapter, A_ULPRX_INT_CAUSE, 0xffffffff,
1978 ulprx_intr_info, NULL))
1979 t3_fatal_err(adapter);
1983 * ULP TX interrupt handler.
1985 static void ulptx_intr_handler(adapter_t *adapter)
1987 static struct intr_info ulptx_intr_info[] = {
1988 { F_PBL_BOUND_ERR_CH0, "ULP TX channel 0 PBL out of bounds",
1989 STAT_ULP_CH0_PBL_OOB, 0 },
1990 { F_PBL_BOUND_ERR_CH1, "ULP TX channel 1 PBL out of bounds",
1991 STAT_ULP_CH1_PBL_OOB, 0 },
1992 { 0xfc, "ULP TX parity error", -1, 1 },
1996 if (t3_handle_intr_status(adapter, A_ULPTX_INT_CAUSE, 0xffffffff,
1997 ulptx_intr_info, adapter->irq_stats))
1998 t3_fatal_err(adapter);
2001 #define ICSPI_FRM_ERR (F_ICSPI0_FIFO2X_RX_FRAMING_ERROR | \
2002 F_ICSPI1_FIFO2X_RX_FRAMING_ERROR | F_ICSPI0_RX_FRAMING_ERROR | \
2003 F_ICSPI1_RX_FRAMING_ERROR | F_ICSPI0_TX_FRAMING_ERROR | \
2004 F_ICSPI1_TX_FRAMING_ERROR)
2005 #define OESPI_FRM_ERR (F_OESPI0_RX_FRAMING_ERROR | \
2006 F_OESPI1_RX_FRAMING_ERROR | F_OESPI0_TX_FRAMING_ERROR | \
2007 F_OESPI1_TX_FRAMING_ERROR | F_OESPI0_OFIFO2X_TX_FRAMING_ERROR | \
2008 F_OESPI1_OFIFO2X_TX_FRAMING_ERROR)
2011 * PM TX interrupt handler.
2013 static void pmtx_intr_handler(adapter_t *adapter)
2015 static struct intr_info pmtx_intr_info[] = {
2016 { F_ZERO_C_CMD_ERROR, "PMTX 0-length pcmd", -1, 1 },
2017 { ICSPI_FRM_ERR, "PMTX ispi framing error", -1, 1 },
2018 { OESPI_FRM_ERR, "PMTX ospi framing error", -1, 1 },
2019 { V_ICSPI_PAR_ERROR(M_ICSPI_PAR_ERROR),
2020 "PMTX ispi parity error", -1, 1 },
2021 { V_OESPI_PAR_ERROR(M_OESPI_PAR_ERROR),
2022 "PMTX ospi parity error", -1, 1 },
2026 if (t3_handle_intr_status(adapter, A_PM1_TX_INT_CAUSE, 0xffffffff,
2027 pmtx_intr_info, NULL))
2028 t3_fatal_err(adapter);
2031 #define IESPI_FRM_ERR (F_IESPI0_FIFO2X_RX_FRAMING_ERROR | \
2032 F_IESPI1_FIFO2X_RX_FRAMING_ERROR | F_IESPI0_RX_FRAMING_ERROR | \
2033 F_IESPI1_RX_FRAMING_ERROR | F_IESPI0_TX_FRAMING_ERROR | \
2034 F_IESPI1_TX_FRAMING_ERROR)
2035 #define OCSPI_FRM_ERR (F_OCSPI0_RX_FRAMING_ERROR | \
2036 F_OCSPI1_RX_FRAMING_ERROR | F_OCSPI0_TX_FRAMING_ERROR | \
2037 F_OCSPI1_TX_FRAMING_ERROR | F_OCSPI0_OFIFO2X_TX_FRAMING_ERROR | \
2038 F_OCSPI1_OFIFO2X_TX_FRAMING_ERROR)
2041 * PM RX interrupt handler.
2043 static void pmrx_intr_handler(adapter_t *adapter)
2045 static struct intr_info pmrx_intr_info[] = {
2046 { F_ZERO_E_CMD_ERROR, "PMRX 0-length pcmd", -1, 1 },
2047 { IESPI_FRM_ERR, "PMRX ispi framing error", -1, 1 },
2048 { OCSPI_FRM_ERR, "PMRX ospi framing error", -1, 1 },
2049 { V_IESPI_PAR_ERROR(M_IESPI_PAR_ERROR),
2050 "PMRX ispi parity error", -1, 1 },
2051 { V_OCSPI_PAR_ERROR(M_OCSPI_PAR_ERROR),
2052 "PMRX ospi parity error", -1, 1 },
2056 if (t3_handle_intr_status(adapter, A_PM1_RX_INT_CAUSE, 0xffffffff,
2057 pmrx_intr_info, NULL))
2058 t3_fatal_err(adapter);
2062 * CPL switch interrupt handler.
2064 static void cplsw_intr_handler(adapter_t *adapter)
2066 static struct intr_info cplsw_intr_info[] = {
2067 { F_CIM_OP_MAP_PERR, "CPL switch CIM parity error", -1, 1 },
2068 { F_CIM_OVFL_ERROR, "CPL switch CIM overflow", -1, 1 },
2069 { F_TP_FRAMING_ERROR, "CPL switch TP framing error", -1, 1 },
2070 { F_SGE_FRAMING_ERROR, "CPL switch SGE framing error", -1, 1 },
2071 { F_CIM_FRAMING_ERROR, "CPL switch CIM framing error", -1, 1 },
2072 { F_ZERO_SWITCH_ERROR, "CPL switch no-switch error", -1, 1 },
2076 if (t3_handle_intr_status(adapter, A_CPL_INTR_CAUSE, 0xffffffff,
2077 cplsw_intr_info, NULL))
2078 t3_fatal_err(adapter);
2082 * MPS interrupt handler.
2084 static void mps_intr_handler(adapter_t *adapter)
2086 static struct intr_info mps_intr_info[] = {
2087 { 0x1ff, "MPS parity error", -1, 1 },
2091 if (t3_handle_intr_status(adapter, A_MPS_INT_CAUSE, 0xffffffff,
2092 mps_intr_info, NULL))
2093 t3_fatal_err(adapter);
2096 #define MC7_INTR_FATAL (F_UE | V_PE(M_PE) | F_AE)
2099 * MC7 interrupt handler.
2101 static void mc7_intr_handler(struct mc7 *mc7)
2103 adapter_t *adapter = mc7->adapter;
2104 u32 cause = t3_read_reg(adapter, mc7->offset + A_MC7_INT_CAUSE);
2107 mc7->stats.corr_err++;
2108 CH_WARN(adapter, "%s MC7 correctable error at addr 0x%x, "
2109 "data 0x%x 0x%x 0x%x\n", mc7->name,
2110 t3_read_reg(adapter, mc7->offset + A_MC7_CE_ADDR),
2111 t3_read_reg(adapter, mc7->offset + A_MC7_CE_DATA0),
2112 t3_read_reg(adapter, mc7->offset + A_MC7_CE_DATA1),
2113 t3_read_reg(adapter, mc7->offset + A_MC7_CE_DATA2));
2117 mc7->stats.uncorr_err++;
2118 CH_ALERT(adapter, "%s MC7 uncorrectable error at addr 0x%x, "
2119 "data 0x%x 0x%x 0x%x\n", mc7->name,
2120 t3_read_reg(adapter, mc7->offset + A_MC7_UE_ADDR),
2121 t3_read_reg(adapter, mc7->offset + A_MC7_UE_DATA0),
2122 t3_read_reg(adapter, mc7->offset + A_MC7_UE_DATA1),
2123 t3_read_reg(adapter, mc7->offset + A_MC7_UE_DATA2));
2127 mc7->stats.parity_err++;
2128 CH_ALERT(adapter, "%s MC7 parity error 0x%x\n",
2129 mc7->name, G_PE(cause));
2135 if (adapter->params.rev > 0)
2136 addr = t3_read_reg(adapter,
2137 mc7->offset + A_MC7_ERR_ADDR);
2138 mc7->stats.addr_err++;
2139 CH_ALERT(adapter, "%s MC7 address error: 0x%x\n",
2143 if (cause & MC7_INTR_FATAL)
2144 t3_fatal_err(adapter);
2146 t3_write_reg(adapter, mc7->offset + A_MC7_INT_CAUSE, cause);
2149 #define XGM_INTR_FATAL (V_TXFIFO_PRTY_ERR(M_TXFIFO_PRTY_ERR) | \
2150 V_RXFIFO_PRTY_ERR(M_RXFIFO_PRTY_ERR))
2152 * XGMAC interrupt handler.
2154 static int mac_intr_handler(adapter_t *adap, unsigned int idx)
2157 struct port_info *pi;
2160 idx = idx == 0 ? 0 : adapter_info(adap)->nports0; /* MAC idx -> port */
2161 pi = adap2pinfo(adap, idx);
2165 * We mask out interrupt causes for which we're not taking interrupts.
2166 * This allows us to use polling logic to monitor some of the other
2167 * conditions when taking interrupts would impose too much load on the
2170 cause = (t3_read_reg(adap, A_XGM_INT_CAUSE + mac->offset)
2171 & ~(F_RXFIFO_OVERFLOW));
2173 if (cause & V_TXFIFO_PRTY_ERR(M_TXFIFO_PRTY_ERR)) {
2174 mac->stats.tx_fifo_parity_err++;
2175 CH_ALERT(adap, "port%d: MAC TX FIFO parity error\n", idx);
2177 if (cause & V_RXFIFO_PRTY_ERR(M_RXFIFO_PRTY_ERR)) {
2178 mac->stats.rx_fifo_parity_err++;
2179 CH_ALERT(adap, "port%d: MAC RX FIFO parity error\n", idx);
2181 if (cause & F_TXFIFO_UNDERRUN)
2182 mac->stats.tx_fifo_urun++;
2183 if (cause & F_RXFIFO_OVERFLOW)
2184 mac->stats.rx_fifo_ovfl++;
2185 if (cause & V_SERDES_LOS(M_SERDES_LOS))
2186 mac->stats.serdes_signal_loss++;
2187 if (cause & F_XAUIPCSCTCERR)
2188 mac->stats.xaui_pcs_ctc_err++;
2189 if (cause & F_XAUIPCSALIGNCHANGE)
2190 mac->stats.xaui_pcs_align_change++;
2191 if (cause & F_XGM_INT &
2192 t3_read_reg(adap, A_XGM_INT_ENABLE + mac->offset)) {
2193 t3_set_reg_field(adap, A_XGM_INT_ENABLE + mac->offset,
2196 /* link fault suspected */
2197 pi->link_fault = LF_MAYBE;
2198 t3_os_link_intr(pi);
2201 if (cause & XGM_INTR_FATAL)
2204 t3_write_reg(adap, A_XGM_INT_CAUSE + mac->offset, cause);
2209 * Interrupt handler for PHY events.
2211 static int phy_intr_handler(adapter_t *adapter)
2213 u32 i, cause = t3_read_reg(adapter, A_T3DBG_INT_CAUSE);
2215 for_each_port(adapter, i) {
2216 struct port_info *p = adap2pinfo(adapter, i);
2218 if (!(p->phy.caps & SUPPORTED_IRQ))
2221 if (cause & (1 << adapter_info(adapter)->gpio_intr[i])) {
2222 int phy_cause = p->phy.ops->intr_handler(&p->phy);
2224 if (phy_cause & cphy_cause_link_change)
2226 if (phy_cause & cphy_cause_fifo_error)
2227 p->phy.fifo_errors++;
2228 if (phy_cause & cphy_cause_module_change)
2229 t3_os_phymod_changed(adapter, i);
2230 if (phy_cause & cphy_cause_alarm)
2231 CH_WARN(adapter, "Operation affected due to "
2232 "adverse environment. Check the spec "
2233 "sheet for corrective action.");
2237 t3_write_reg(adapter, A_T3DBG_INT_CAUSE, cause);
2242 * t3_slow_intr_handler - control path interrupt handler
2243 * @adapter: the adapter
2245 * T3 interrupt handler for non-data interrupt events, e.g., errors.
2246 * The designation 'slow' is because it involves register reads, while
2247 * data interrupts typically don't involve any MMIOs.
2249 int t3_slow_intr_handler(adapter_t *adapter)
2251 u32 cause = t3_read_reg(adapter, A_PL_INT_CAUSE0);
2253 cause &= adapter->slow_intr_mask;
2256 if (cause & F_PCIM0) {
2257 if (is_pcie(adapter))
2258 pcie_intr_handler(adapter);
2260 pci_intr_handler(adapter);
2263 t3_sge_err_intr_handler(adapter);
2264 if (cause & F_MC7_PMRX)
2265 mc7_intr_handler(&adapter->pmrx);
2266 if (cause & F_MC7_PMTX)
2267 mc7_intr_handler(&adapter->pmtx);
2268 if (cause & F_MC7_CM)
2269 mc7_intr_handler(&adapter->cm);
2271 cim_intr_handler(adapter);
2273 tp_intr_handler(adapter);
2274 if (cause & F_ULP2_RX)
2275 ulprx_intr_handler(adapter);
2276 if (cause & F_ULP2_TX)
2277 ulptx_intr_handler(adapter);
2278 if (cause & F_PM1_RX)
2279 pmrx_intr_handler(adapter);
2280 if (cause & F_PM1_TX)
2281 pmtx_intr_handler(adapter);
2282 if (cause & F_CPL_SWITCH)
2283 cplsw_intr_handler(adapter);
2285 mps_intr_handler(adapter);
2287 t3_mc5_intr_handler(&adapter->mc5);
2288 if (cause & F_XGMAC0_0)
2289 mac_intr_handler(adapter, 0);
2290 if (cause & F_XGMAC0_1)
2291 mac_intr_handler(adapter, 1);
2292 if (cause & F_T3DBG)
2293 phy_intr_handler(adapter);
2295 /* Clear the interrupts just processed. */
2296 t3_write_reg(adapter, A_PL_INT_CAUSE0, cause);
2297 (void) t3_read_reg(adapter, A_PL_INT_CAUSE0); /* flush */
2301 static unsigned int calc_gpio_intr(adapter_t *adap)
2303 unsigned int i, gpi_intr = 0;
2305 for_each_port(adap, i)
2306 if ((adap2pinfo(adap, i)->phy.caps & SUPPORTED_IRQ) &&
2307 adapter_info(adap)->gpio_intr[i])
2308 gpi_intr |= 1 << adapter_info(adap)->gpio_intr[i];
2313 * t3_intr_enable - enable interrupts
2314 * @adapter: the adapter whose interrupts should be enabled
2316 * Enable interrupts by setting the interrupt enable registers of the
2317 * various HW modules and then enabling the top-level interrupt
2320 void t3_intr_enable(adapter_t *adapter)
2322 static struct addr_val_pair intr_en_avp[] = {
2323 { A_MC7_INT_ENABLE, MC7_INTR_MASK },
2324 { A_MC7_INT_ENABLE - MC7_PMRX_BASE_ADDR + MC7_PMTX_BASE_ADDR,
2326 { A_MC7_INT_ENABLE - MC7_PMRX_BASE_ADDR + MC7_CM_BASE_ADDR,
2328 { A_MC5_DB_INT_ENABLE, MC5_INTR_MASK },
2329 { A_ULPRX_INT_ENABLE, ULPRX_INTR_MASK },
2330 { A_PM1_TX_INT_ENABLE, PMTX_INTR_MASK },
2331 { A_PM1_RX_INT_ENABLE, PMRX_INTR_MASK },
2332 { A_CIM_HOST_INT_ENABLE, CIM_INTR_MASK },
2333 { A_MPS_INT_ENABLE, MPS_INTR_MASK },
2336 adapter->slow_intr_mask = PL_INTR_MASK;
2338 t3_write_regs(adapter, intr_en_avp, ARRAY_SIZE(intr_en_avp), 0);
2339 t3_write_reg(adapter, A_TP_INT_ENABLE,
2340 adapter->params.rev >= T3_REV_C ? 0x2bfffff : 0x3bfffff);
2341 t3_write_reg(adapter, A_SG_INT_ENABLE, SGE_INTR_MASK);
2343 if (adapter->params.rev > 0) {
2344 t3_write_reg(adapter, A_CPL_INTR_ENABLE,
2345 CPLSW_INTR_MASK | F_CIM_OVFL_ERROR);
2346 t3_write_reg(adapter, A_ULPTX_INT_ENABLE,
2347 ULPTX_INTR_MASK | F_PBL_BOUND_ERR_CH0 |
2348 F_PBL_BOUND_ERR_CH1);
2350 t3_write_reg(adapter, A_CPL_INTR_ENABLE, CPLSW_INTR_MASK);
2351 t3_write_reg(adapter, A_ULPTX_INT_ENABLE, ULPTX_INTR_MASK);
2354 t3_write_reg(adapter, A_T3DBG_INT_ENABLE, calc_gpio_intr(adapter));
2356 if (is_pcie(adapter))
2357 t3_write_reg(adapter, A_PCIE_INT_ENABLE, PCIE_INTR_MASK);
2359 t3_write_reg(adapter, A_PCIX_INT_ENABLE, PCIX_INTR_MASK);
2360 t3_write_reg(adapter, A_PL_INT_ENABLE0, adapter->slow_intr_mask);
2361 (void) t3_read_reg(adapter, A_PL_INT_ENABLE0); /* flush */
2365 * t3_intr_disable - disable a card's interrupts
2366 * @adapter: the adapter whose interrupts should be disabled
2368 * Disable interrupts. We only disable the top-level interrupt
2369 * concentrator and the SGE data interrupts.
2371 void t3_intr_disable(adapter_t *adapter)
2373 t3_write_reg(adapter, A_PL_INT_ENABLE0, 0);
2374 (void) t3_read_reg(adapter, A_PL_INT_ENABLE0); /* flush */
2375 adapter->slow_intr_mask = 0;
2379 * t3_intr_clear - clear all interrupts
2380 * @adapter: the adapter whose interrupts should be cleared
2382 * Clears all interrupts.
2384 void t3_intr_clear(adapter_t *adapter)
2386 static const unsigned int cause_reg_addr[] = {
2388 A_SG_RSPQ_FL_STATUS,
2391 A_MC7_INT_CAUSE - MC7_PMRX_BASE_ADDR + MC7_PMTX_BASE_ADDR,
2392 A_MC7_INT_CAUSE - MC7_PMRX_BASE_ADDR + MC7_CM_BASE_ADDR,
2393 A_CIM_HOST_INT_CAUSE,
2406 /* Clear PHY and MAC interrupts for each port. */
2407 for_each_port(adapter, i)
2408 t3_port_intr_clear(adapter, i);
2410 for (i = 0; i < ARRAY_SIZE(cause_reg_addr); ++i)
2411 t3_write_reg(adapter, cause_reg_addr[i], 0xffffffff);
2413 if (is_pcie(adapter))
2414 t3_write_reg(adapter, A_PCIE_PEX_ERR, 0xffffffff);
2415 t3_write_reg(adapter, A_PL_INT_CAUSE0, 0xffffffff);
2416 (void) t3_read_reg(adapter, A_PL_INT_CAUSE0); /* flush */
2419 void t3_xgm_intr_enable(adapter_t *adapter, int idx)
2421 struct port_info *pi = adap2pinfo(adapter, idx);
2423 t3_write_reg(adapter, A_XGM_XGM_INT_ENABLE + pi->mac.offset,
2424 XGM_EXTRA_INTR_MASK);
2427 void t3_xgm_intr_disable(adapter_t *adapter, int idx)
2429 struct port_info *pi = adap2pinfo(adapter, idx);
2431 t3_write_reg(adapter, A_XGM_XGM_INT_DISABLE + pi->mac.offset,
2436 * t3_port_intr_enable - enable port-specific interrupts
2437 * @adapter: associated adapter
2438 * @idx: index of port whose interrupts should be enabled
2440 * Enable port-specific (i.e., MAC and PHY) interrupts for the given
2443 void t3_port_intr_enable(adapter_t *adapter, int idx)
2445 struct port_info *pi = adap2pinfo(adapter, idx);
2447 t3_write_reg(adapter, A_XGM_INT_ENABLE + pi->mac.offset, XGM_INTR_MASK);
2448 pi->phy.ops->intr_enable(&pi->phy);
2452 * t3_port_intr_disable - disable port-specific interrupts
2453 * @adapter: associated adapter
2454 * @idx: index of port whose interrupts should be disabled
2456 * Disable port-specific (i.e., MAC and PHY) interrupts for the given
2459 void t3_port_intr_disable(adapter_t *adapter, int idx)
2461 struct port_info *pi = adap2pinfo(adapter, idx);
2463 t3_write_reg(adapter, A_XGM_INT_ENABLE + pi->mac.offset, 0);
2464 pi->phy.ops->intr_disable(&pi->phy);
2468 * t3_port_intr_clear - clear port-specific interrupts
2469 * @adapter: associated adapter
2470 * @idx: index of port whose interrupts to clear
2472 * Clear port-specific (i.e., MAC and PHY) interrupts for the given
2475 void t3_port_intr_clear(adapter_t *adapter, int idx)
2477 struct port_info *pi = adap2pinfo(adapter, idx);
2479 t3_write_reg(adapter, A_XGM_INT_CAUSE + pi->mac.offset, 0xffffffff);
2480 pi->phy.ops->intr_clear(&pi->phy);
2483 #define SG_CONTEXT_CMD_ATTEMPTS 100
2486 * t3_sge_write_context - write an SGE context
2487 * @adapter: the adapter
2488 * @id: the context id
2489 * @type: the context type
2491 * Program an SGE context with the values already loaded in the
2492 * CONTEXT_DATA? registers.
2494 static int t3_sge_write_context(adapter_t *adapter, unsigned int id,
2497 if (type == F_RESPONSEQ) {
2499 * Can't write the Response Queue Context bits for
2500 * Interrupt Armed or the Reserve bits after the chip
2501 * has been initialized out of reset. Writing to these
2502 * bits can confuse the hardware.
2504 t3_write_reg(adapter, A_SG_CONTEXT_MASK0, 0xffffffff);
2505 t3_write_reg(adapter, A_SG_CONTEXT_MASK1, 0xffffffff);
2506 t3_write_reg(adapter, A_SG_CONTEXT_MASK2, 0x17ffffff);
2507 t3_write_reg(adapter, A_SG_CONTEXT_MASK3, 0xffffffff);
2509 t3_write_reg(adapter, A_SG_CONTEXT_MASK0, 0xffffffff);
2510 t3_write_reg(adapter, A_SG_CONTEXT_MASK1, 0xffffffff);
2511 t3_write_reg(adapter, A_SG_CONTEXT_MASK2, 0xffffffff);
2512 t3_write_reg(adapter, A_SG_CONTEXT_MASK3, 0xffffffff);
2514 t3_write_reg(adapter, A_SG_CONTEXT_CMD,
2515 V_CONTEXT_CMD_OPCODE(1) | type | V_CONTEXT(id));
2516 return t3_wait_op_done(adapter, A_SG_CONTEXT_CMD, F_CONTEXT_CMD_BUSY,
2517 0, SG_CONTEXT_CMD_ATTEMPTS, 1);
2521 * clear_sge_ctxt - completely clear an SGE context
2522 * @adapter: the adapter
2523 * @id: the context id
2524 * @type: the context type
2526 * Completely clear an SGE context. Used predominantly at post-reset
2527 * initialization. Note in particular that we don't skip writing to any
2528 * "sensitive bits" in the contexts the way that t3_sge_write_context()
2531 static int clear_sge_ctxt(adapter_t *adap, unsigned int id, unsigned int type)
2533 t3_write_reg(adap, A_SG_CONTEXT_DATA0, 0);
2534 t3_write_reg(adap, A_SG_CONTEXT_DATA1, 0);
2535 t3_write_reg(adap, A_SG_CONTEXT_DATA2, 0);
2536 t3_write_reg(adap, A_SG_CONTEXT_DATA3, 0);
2537 t3_write_reg(adap, A_SG_CONTEXT_MASK0, 0xffffffff);
2538 t3_write_reg(adap, A_SG_CONTEXT_MASK1, 0xffffffff);
2539 t3_write_reg(adap, A_SG_CONTEXT_MASK2, 0xffffffff);
2540 t3_write_reg(adap, A_SG_CONTEXT_MASK3, 0xffffffff);
2541 t3_write_reg(adap, A_SG_CONTEXT_CMD,
2542 V_CONTEXT_CMD_OPCODE(1) | type | V_CONTEXT(id));
2543 return t3_wait_op_done(adap, A_SG_CONTEXT_CMD, F_CONTEXT_CMD_BUSY,
2544 0, SG_CONTEXT_CMD_ATTEMPTS, 1);
2548 * t3_sge_init_ecntxt - initialize an SGE egress context
2549 * @adapter: the adapter to configure
2550 * @id: the context id
2551 * @gts_enable: whether to enable GTS for the context
2552 * @type: the egress context type
2553 * @respq: associated response queue
2554 * @base_addr: base address of queue
2555 * @size: number of queue entries
2557 * @gen: initial generation value for the context
2558 * @cidx: consumer pointer
2560 * Initialize an SGE egress context and make it ready for use. If the
2561 * platform allows concurrent context operations, the caller is
2562 * responsible for appropriate locking.
2564 int t3_sge_init_ecntxt(adapter_t *adapter, unsigned int id, int gts_enable,
2565 enum sge_context_type type, int respq, u64 base_addr,
2566 unsigned int size, unsigned int token, int gen,
2569 unsigned int credits = type == SGE_CNTXT_OFLD ? 0 : FW_WR_NUM;
2571 if (base_addr & 0xfff) /* must be 4K aligned */
2573 if (t3_read_reg(adapter, A_SG_CONTEXT_CMD) & F_CONTEXT_CMD_BUSY)
2577 t3_write_reg(adapter, A_SG_CONTEXT_DATA0, V_EC_INDEX(cidx) |
2578 V_EC_CREDITS(credits) | V_EC_GTS(gts_enable));
2579 t3_write_reg(adapter, A_SG_CONTEXT_DATA1, V_EC_SIZE(size) |
2580 V_EC_BASE_LO((u32)base_addr & 0xffff));
2582 t3_write_reg(adapter, A_SG_CONTEXT_DATA2, (u32)base_addr);
2584 t3_write_reg(adapter, A_SG_CONTEXT_DATA3,
2585 V_EC_BASE_HI((u32)base_addr & 0xf) | V_EC_RESPQ(respq) |
2586 V_EC_TYPE(type) | V_EC_GEN(gen) | V_EC_UP_TOKEN(token) |
2588 return t3_sge_write_context(adapter, id, F_EGRESS);
2592 * t3_sge_init_flcntxt - initialize an SGE free-buffer list context
2593 * @adapter: the adapter to configure
2594 * @id: the context id
2595 * @gts_enable: whether to enable GTS for the context
2596 * @base_addr: base address of queue
2597 * @size: number of queue entries
2598 * @bsize: size of each buffer for this queue
2599 * @cong_thres: threshold to signal congestion to upstream producers
2600 * @gen: initial generation value for the context
2601 * @cidx: consumer pointer
2603 * Initialize an SGE free list context and make it ready for use. The
2604 * caller is responsible for ensuring only one context operation occurs
2607 int t3_sge_init_flcntxt(adapter_t *adapter, unsigned int id, int gts_enable,
2608 u64 base_addr, unsigned int size, unsigned int bsize,
2609 unsigned int cong_thres, int gen, unsigned int cidx)
2611 if (base_addr & 0xfff) /* must be 4K aligned */
2613 if (t3_read_reg(adapter, A_SG_CONTEXT_CMD) & F_CONTEXT_CMD_BUSY)
2617 t3_write_reg(adapter, A_SG_CONTEXT_DATA0, (u32)base_addr);
2619 t3_write_reg(adapter, A_SG_CONTEXT_DATA1,
2620 V_FL_BASE_HI((u32)base_addr) |
2621 V_FL_INDEX_LO(cidx & M_FL_INDEX_LO));
2622 t3_write_reg(adapter, A_SG_CONTEXT_DATA2, V_FL_SIZE(size) |
2623 V_FL_GEN(gen) | V_FL_INDEX_HI(cidx >> 12) |
2624 V_FL_ENTRY_SIZE_LO(bsize & M_FL_ENTRY_SIZE_LO));
2625 t3_write_reg(adapter, A_SG_CONTEXT_DATA3,
2626 V_FL_ENTRY_SIZE_HI(bsize >> (32 - S_FL_ENTRY_SIZE_LO)) |
2627 V_FL_CONG_THRES(cong_thres) | V_FL_GTS(gts_enable));
2628 return t3_sge_write_context(adapter, id, F_FREELIST);
2632 * t3_sge_init_rspcntxt - initialize an SGE response queue context
2633 * @adapter: the adapter to configure
2634 * @id: the context id
2635 * @irq_vec_idx: MSI-X interrupt vector index, 0 if no MSI-X, -1 if no IRQ
2636 * @base_addr: base address of queue
2637 * @size: number of queue entries
2638 * @fl_thres: threshold for selecting the normal or jumbo free list
2639 * @gen: initial generation value for the context
2640 * @cidx: consumer pointer
2642 * Initialize an SGE response queue context and make it ready for use.
2643 * The caller is responsible for ensuring only one context operation
2646 int t3_sge_init_rspcntxt(adapter_t *adapter, unsigned int id, int irq_vec_idx,
2647 u64 base_addr, unsigned int size,
2648 unsigned int fl_thres, int gen, unsigned int cidx)
2650 unsigned int ctrl, intr = 0;
2652 if (base_addr & 0xfff) /* must be 4K aligned */
2654 if (t3_read_reg(adapter, A_SG_CONTEXT_CMD) & F_CONTEXT_CMD_BUSY)
2658 t3_write_reg(adapter, A_SG_CONTEXT_DATA0, V_CQ_SIZE(size) |
2660 t3_write_reg(adapter, A_SG_CONTEXT_DATA1, (u32)base_addr);
2662 ctrl = t3_read_reg(adapter, A_SG_CONTROL);
2663 if ((irq_vec_idx > 0) ||
2664 ((irq_vec_idx == 0) && !(ctrl & F_ONEINTMULTQ)))
2665 intr = F_RQ_INTR_EN;
2666 if (irq_vec_idx >= 0)
2667 intr |= V_RQ_MSI_VEC(irq_vec_idx);
2668 t3_write_reg(adapter, A_SG_CONTEXT_DATA2,
2669 V_CQ_BASE_HI((u32)base_addr) | intr | V_RQ_GEN(gen));
2670 t3_write_reg(adapter, A_SG_CONTEXT_DATA3, fl_thres);
2671 return t3_sge_write_context(adapter, id, F_RESPONSEQ);
2675 * t3_sge_init_cqcntxt - initialize an SGE completion queue context
2676 * @adapter: the adapter to configure
2677 * @id: the context id
2678 * @base_addr: base address of queue
2679 * @size: number of queue entries
2680 * @rspq: response queue for async notifications
2681 * @ovfl_mode: CQ overflow mode
2682 * @credits: completion queue credits
2683 * @credit_thres: the credit threshold
2685 * Initialize an SGE completion queue context and make it ready for use.
2686 * The caller is responsible for ensuring only one context operation
2689 int t3_sge_init_cqcntxt(adapter_t *adapter, unsigned int id, u64 base_addr,
2690 unsigned int size, int rspq, int ovfl_mode,
2691 unsigned int credits, unsigned int credit_thres)
2693 if (base_addr & 0xfff) /* must be 4K aligned */
2695 if (t3_read_reg(adapter, A_SG_CONTEXT_CMD) & F_CONTEXT_CMD_BUSY)
2699 t3_write_reg(adapter, A_SG_CONTEXT_DATA0, V_CQ_SIZE(size));
2700 t3_write_reg(adapter, A_SG_CONTEXT_DATA1, (u32)base_addr);
2702 t3_write_reg(adapter, A_SG_CONTEXT_DATA2,
2703 V_CQ_BASE_HI((u32)base_addr) | V_CQ_RSPQ(rspq) |
2704 V_CQ_GEN(1) | V_CQ_OVERFLOW_MODE(ovfl_mode) |
2705 V_CQ_ERR(ovfl_mode));
2706 t3_write_reg(adapter, A_SG_CONTEXT_DATA3, V_CQ_CREDITS(credits) |
2707 V_CQ_CREDIT_THRES(credit_thres));
2708 return t3_sge_write_context(adapter, id, F_CQ);
2712 * t3_sge_enable_ecntxt - enable/disable an SGE egress context
2713 * @adapter: the adapter
2714 * @id: the egress context id
2715 * @enable: enable (1) or disable (0) the context
2717 * Enable or disable an SGE egress context. The caller is responsible for
2718 * ensuring only one context operation occurs at a time.
2720 int t3_sge_enable_ecntxt(adapter_t *adapter, unsigned int id, int enable)
2722 if (t3_read_reg(adapter, A_SG_CONTEXT_CMD) & F_CONTEXT_CMD_BUSY)
2725 t3_write_reg(adapter, A_SG_CONTEXT_MASK0, 0);
2726 t3_write_reg(adapter, A_SG_CONTEXT_MASK1, 0);
2727 t3_write_reg(adapter, A_SG_CONTEXT_MASK2, 0);
2728 t3_write_reg(adapter, A_SG_CONTEXT_MASK3, F_EC_VALID);
2729 t3_write_reg(adapter, A_SG_CONTEXT_DATA3, V_EC_VALID(enable));
2730 t3_write_reg(adapter, A_SG_CONTEXT_CMD,
2731 V_CONTEXT_CMD_OPCODE(1) | F_EGRESS | V_CONTEXT(id));
2732 return t3_wait_op_done(adapter, A_SG_CONTEXT_CMD, F_CONTEXT_CMD_BUSY,
2733 0, SG_CONTEXT_CMD_ATTEMPTS, 1);
2737 * t3_sge_disable_fl - disable an SGE free-buffer list
2738 * @adapter: the adapter
2739 * @id: the free list context id
2741 * Disable an SGE free-buffer list. The caller is responsible for
2742 * ensuring only one context operation occurs at a time.
2744 int t3_sge_disable_fl(adapter_t *adapter, unsigned int id)
2746 if (t3_read_reg(adapter, A_SG_CONTEXT_CMD) & F_CONTEXT_CMD_BUSY)
2749 t3_write_reg(adapter, A_SG_CONTEXT_MASK0, 0);
2750 t3_write_reg(adapter, A_SG_CONTEXT_MASK1, 0);
2751 t3_write_reg(adapter, A_SG_CONTEXT_MASK2, V_FL_SIZE(M_FL_SIZE));
2752 t3_write_reg(adapter, A_SG_CONTEXT_MASK3, 0);
2753 t3_write_reg(adapter, A_SG_CONTEXT_DATA2, 0);
2754 t3_write_reg(adapter, A_SG_CONTEXT_CMD,
2755 V_CONTEXT_CMD_OPCODE(1) | F_FREELIST | V_CONTEXT(id));
2756 return t3_wait_op_done(adapter, A_SG_CONTEXT_CMD, F_CONTEXT_CMD_BUSY,
2757 0, SG_CONTEXT_CMD_ATTEMPTS, 1);
2761 * t3_sge_disable_rspcntxt - disable an SGE response queue
2762 * @adapter: the adapter
2763 * @id: the response queue context id
2765 * Disable an SGE response queue. The caller is responsible for
2766 * ensuring only one context operation occurs at a time.
2768 int t3_sge_disable_rspcntxt(adapter_t *adapter, unsigned int id)
2770 if (t3_read_reg(adapter, A_SG_CONTEXT_CMD) & F_CONTEXT_CMD_BUSY)
2773 t3_write_reg(adapter, A_SG_CONTEXT_MASK0, V_CQ_SIZE(M_CQ_SIZE));
2774 t3_write_reg(adapter, A_SG_CONTEXT_MASK1, 0);
2775 t3_write_reg(adapter, A_SG_CONTEXT_MASK2, 0);
2776 t3_write_reg(adapter, A_SG_CONTEXT_MASK3, 0);
2777 t3_write_reg(adapter, A_SG_CONTEXT_DATA0, 0);
2778 t3_write_reg(adapter, A_SG_CONTEXT_CMD,
2779 V_CONTEXT_CMD_OPCODE(1) | F_RESPONSEQ | V_CONTEXT(id));
2780 return t3_wait_op_done(adapter, A_SG_CONTEXT_CMD, F_CONTEXT_CMD_BUSY,
2781 0, SG_CONTEXT_CMD_ATTEMPTS, 1);
2785 * t3_sge_disable_cqcntxt - disable an SGE completion queue
2786 * @adapter: the adapter
2787 * @id: the completion queue context id
2789 * Disable an SGE completion queue. The caller is responsible for
2790 * ensuring only one context operation occurs at a time.
2792 int t3_sge_disable_cqcntxt(adapter_t *adapter, unsigned int id)
2794 if (t3_read_reg(adapter, A_SG_CONTEXT_CMD) & F_CONTEXT_CMD_BUSY)
2797 t3_write_reg(adapter, A_SG_CONTEXT_MASK0, V_CQ_SIZE(M_CQ_SIZE));
2798 t3_write_reg(adapter, A_SG_CONTEXT_MASK1, 0);
2799 t3_write_reg(adapter, A_SG_CONTEXT_MASK2, 0);
2800 t3_write_reg(adapter, A_SG_CONTEXT_MASK3, 0);
2801 t3_write_reg(adapter, A_SG_CONTEXT_DATA0, 0);
2802 t3_write_reg(adapter, A_SG_CONTEXT_CMD,
2803 V_CONTEXT_CMD_OPCODE(1) | F_CQ | V_CONTEXT(id));
2804 return t3_wait_op_done(adapter, A_SG_CONTEXT_CMD, F_CONTEXT_CMD_BUSY,
2805 0, SG_CONTEXT_CMD_ATTEMPTS, 1);
2809 * t3_sge_cqcntxt_op - perform an operation on a completion queue context
2810 * @adapter: the adapter
2811 * @id: the context id
2812 * @op: the operation to perform
2813 * @credits: credits to return to the CQ
2815 * Perform the selected operation on an SGE completion queue context.
2816 * The caller is responsible for ensuring only one context operation
2819 * For most operations the function returns the current HW position in
2820 * the completion queue.
2822 int t3_sge_cqcntxt_op(adapter_t *adapter, unsigned int id, unsigned int op,
2823 unsigned int credits)
2827 if (t3_read_reg(adapter, A_SG_CONTEXT_CMD) & F_CONTEXT_CMD_BUSY)
2830 t3_write_reg(adapter, A_SG_CONTEXT_DATA0, credits << 16);
2831 t3_write_reg(adapter, A_SG_CONTEXT_CMD, V_CONTEXT_CMD_OPCODE(op) |
2832 V_CONTEXT(id) | F_CQ);
2833 if (t3_wait_op_done_val(adapter, A_SG_CONTEXT_CMD, F_CONTEXT_CMD_BUSY,
2834 0, SG_CONTEXT_CMD_ATTEMPTS, 1, &val))
2837 if (op >= 2 && op < 7) {
2838 if (adapter->params.rev > 0)
2839 return G_CQ_INDEX(val);
2841 t3_write_reg(adapter, A_SG_CONTEXT_CMD,
2842 V_CONTEXT_CMD_OPCODE(0) | F_CQ | V_CONTEXT(id));
2843 if (t3_wait_op_done(adapter, A_SG_CONTEXT_CMD,
2844 F_CONTEXT_CMD_BUSY, 0,
2845 SG_CONTEXT_CMD_ATTEMPTS, 1))
2847 return G_CQ_INDEX(t3_read_reg(adapter, A_SG_CONTEXT_DATA0));
2853 * t3_sge_read_context - read an SGE context
2854 * @type: the context type
2855 * @adapter: the adapter
2856 * @id: the context id
2857 * @data: holds the retrieved context
2859 * Read an SGE egress context. The caller is responsible for ensuring
2860 * only one context operation occurs at a time.
2862 static int t3_sge_read_context(unsigned int type, adapter_t *adapter,
2863 unsigned int id, u32 data[4])
2865 if (t3_read_reg(adapter, A_SG_CONTEXT_CMD) & F_CONTEXT_CMD_BUSY)
2868 t3_write_reg(adapter, A_SG_CONTEXT_CMD,
2869 V_CONTEXT_CMD_OPCODE(0) | type | V_CONTEXT(id));
2870 if (t3_wait_op_done(adapter, A_SG_CONTEXT_CMD, F_CONTEXT_CMD_BUSY, 0,
2871 SG_CONTEXT_CMD_ATTEMPTS, 1))
2873 data[0] = t3_read_reg(adapter, A_SG_CONTEXT_DATA0);
2874 data[1] = t3_read_reg(adapter, A_SG_CONTEXT_DATA1);
2875 data[2] = t3_read_reg(adapter, A_SG_CONTEXT_DATA2);
2876 data[3] = t3_read_reg(adapter, A_SG_CONTEXT_DATA3);
2881 * t3_sge_read_ecntxt - read an SGE egress context
2882 * @adapter: the adapter
2883 * @id: the context id
2884 * @data: holds the retrieved context
2886 * Read an SGE egress context. The caller is responsible for ensuring
2887 * only one context operation occurs at a time.
2889 int t3_sge_read_ecntxt(adapter_t *adapter, unsigned int id, u32 data[4])
2893 return t3_sge_read_context(F_EGRESS, adapter, id, data);
2897 * t3_sge_read_cq - read an SGE CQ context
2898 * @adapter: the adapter
2899 * @id: the context id
2900 * @data: holds the retrieved context
2902 * Read an SGE CQ context. The caller is responsible for ensuring
2903 * only one context operation occurs at a time.
2905 int t3_sge_read_cq(adapter_t *adapter, unsigned int id, u32 data[4])
2909 return t3_sge_read_context(F_CQ, adapter, id, data);
2913 * t3_sge_read_fl - read an SGE free-list context
2914 * @adapter: the adapter
2915 * @id: the context id
2916 * @data: holds the retrieved context
2918 * Read an SGE free-list context. The caller is responsible for ensuring
2919 * only one context operation occurs at a time.
2921 int t3_sge_read_fl(adapter_t *adapter, unsigned int id, u32 data[4])
2923 if (id >= SGE_QSETS * 2)
2925 return t3_sge_read_context(F_FREELIST, adapter, id, data);
2929 * t3_sge_read_rspq - read an SGE response queue context
2930 * @adapter: the adapter
2931 * @id: the context id
2932 * @data: holds the retrieved context
2934 * Read an SGE response queue context. The caller is responsible for
2935 * ensuring only one context operation occurs at a time.
2937 int t3_sge_read_rspq(adapter_t *adapter, unsigned int id, u32 data[4])
2939 if (id >= SGE_QSETS)
2941 return t3_sge_read_context(F_RESPONSEQ, adapter, id, data);
2945 * t3_config_rss - configure Rx packet steering
2946 * @adapter: the adapter
2947 * @rss_config: RSS settings (written to TP_RSS_CONFIG)
2948 * @cpus: values for the CPU lookup table (0xff terminated)
2949 * @rspq: values for the response queue lookup table (0xffff terminated)
2951 * Programs the receive packet steering logic. @cpus and @rspq provide
2952 * the values for the CPU and response queue lookup tables. If they
2953 * provide fewer values than the size of the tables the supplied values
2954 * are used repeatedly until the tables are fully populated.
2956 void t3_config_rss(adapter_t *adapter, unsigned int rss_config, const u8 *cpus,
2959 int i, j, cpu_idx = 0, q_idx = 0;
2962 for (i = 0; i < RSS_TABLE_SIZE; ++i) {
2965 for (j = 0; j < 2; ++j) {
2966 val |= (cpus[cpu_idx++] & 0x3f) << (8 * j);
2967 if (cpus[cpu_idx] == 0xff)
2970 t3_write_reg(adapter, A_TP_RSS_LKP_TABLE, val);
2974 for (i = 0; i < RSS_TABLE_SIZE; ++i) {
2975 t3_write_reg(adapter, A_TP_RSS_MAP_TABLE,
2976 (i << 16) | rspq[q_idx++]);
2977 if (rspq[q_idx] == 0xffff)
2981 t3_write_reg(adapter, A_TP_RSS_CONFIG, rss_config);
2985 * t3_read_rss - read the contents of the RSS tables
2986 * @adapter: the adapter
2987 * @lkup: holds the contents of the RSS lookup table
2988 * @map: holds the contents of the RSS map table
2990 * Reads the contents of the receive packet steering tables.
2992 int t3_read_rss(adapter_t *adapter, u8 *lkup, u16 *map)
2998 for (i = 0; i < RSS_TABLE_SIZE; ++i) {
2999 t3_write_reg(adapter, A_TP_RSS_LKP_TABLE,
3001 val = t3_read_reg(adapter, A_TP_RSS_LKP_TABLE);
3002 if (!(val & 0x80000000))
3005 *lkup++ = (u8)(val >> 8);
3009 for (i = 0; i < RSS_TABLE_SIZE; ++i) {
3010 t3_write_reg(adapter, A_TP_RSS_MAP_TABLE,
3012 val = t3_read_reg(adapter, A_TP_RSS_MAP_TABLE);
3013 if (!(val & 0x80000000))
3021 * t3_tp_set_offload_mode - put TP in NIC/offload mode
3022 * @adap: the adapter
3023 * @enable: 1 to select offload mode, 0 for regular NIC
3025 * Switches TP to NIC/offload mode.
3027 void t3_tp_set_offload_mode(adapter_t *adap, int enable)
3029 if (is_offload(adap) || !enable)
3030 t3_set_reg_field(adap, A_TP_IN_CONFIG, F_NICMODE,
3031 V_NICMODE(!enable));
3035 * tp_wr_bits_indirect - set/clear bits in an indirect TP register
3036 * @adap: the adapter
3037 * @addr: the indirect TP register address
3038 * @mask: specifies the field within the register to modify
3039 * @val: new value for the field
3041 * Sets a field of an indirect TP register to the given value.
3043 static void tp_wr_bits_indirect(adapter_t *adap, unsigned int addr,
3044 unsigned int mask, unsigned int val)
3046 t3_write_reg(adap, A_TP_PIO_ADDR, addr);
3047 val |= t3_read_reg(adap, A_TP_PIO_DATA) & ~mask;
3048 t3_write_reg(adap, A_TP_PIO_DATA, val);
3052 * t3_enable_filters - enable the HW filters
3053 * @adap: the adapter
3055 * Enables the HW filters for NIC traffic.
3057 void t3_enable_filters(adapter_t *adap)
3059 t3_set_reg_field(adap, A_TP_IN_CONFIG, F_NICMODE, 0);
3060 t3_set_reg_field(adap, A_MC5_DB_CONFIG, 0, F_FILTEREN);
3061 t3_set_reg_field(adap, A_TP_GLOBAL_CONFIG, 0, V_FIVETUPLELOOKUP(3));
3062 tp_wr_bits_indirect(adap, A_TP_INGRESS_CONFIG, 0, F_LOOKUPEVERYPKT);
3066 * t3_disable_filters - disable the HW filters
3067 * @adap: the adapter
3069 * Disables the HW filters for NIC traffic.
3071 void t3_disable_filters(adapter_t *adap)
3073 /* note that we don't want to revert to NIC-only mode */
3074 t3_set_reg_field(adap, A_MC5_DB_CONFIG, F_FILTEREN, 0);
3075 t3_set_reg_field(adap, A_TP_GLOBAL_CONFIG,
3076 V_FIVETUPLELOOKUP(M_FIVETUPLELOOKUP), 0);
3077 tp_wr_bits_indirect(adap, A_TP_INGRESS_CONFIG, F_LOOKUPEVERYPKT, 0);
3081 * pm_num_pages - calculate the number of pages of the payload memory
3082 * @mem_size: the size of the payload memory
3083 * @pg_size: the size of each payload memory page
3085 * Calculate the number of pages, each of the given size, that fit in a
3086 * memory of the specified size, respecting the HW requirement that the
3087 * number of pages must be a multiple of 24.
3089 static inline unsigned int pm_num_pages(unsigned int mem_size,
3090 unsigned int pg_size)
3092 unsigned int n = mem_size / pg_size;
3097 #define mem_region(adap, start, size, reg) \
3098 t3_write_reg((adap), A_ ## reg, (start)); \
3102 * partition_mem - partition memory and configure TP memory settings
3103 * @adap: the adapter
3104 * @p: the TP parameters
3106 * Partitions context and payload memory and configures TP's memory
3109 static void partition_mem(adapter_t *adap, const struct tp_params *p)
3111 unsigned int m, pstructs, tids = t3_mc5_size(&adap->mc5);
3112 unsigned int timers = 0, timers_shift = 22;
3114 if (adap->params.rev > 0) {
3115 if (tids <= 16 * 1024) {
3118 } else if (tids <= 64 * 1024) {
3121 } else if (tids <= 256 * 1024) {
3127 t3_write_reg(adap, A_TP_PMM_SIZE,
3128 p->chan_rx_size | (p->chan_tx_size >> 16));
3130 t3_write_reg(adap, A_TP_PMM_TX_BASE, 0);
3131 t3_write_reg(adap, A_TP_PMM_TX_PAGE_SIZE, p->tx_pg_size);
3132 t3_write_reg(adap, A_TP_PMM_TX_MAX_PAGE, p->tx_num_pgs);
3133 t3_set_reg_field(adap, A_TP_PARA_REG3, V_TXDATAACKIDX(M_TXDATAACKIDX),
3134 V_TXDATAACKIDX(fls(p->tx_pg_size) - 12));
3136 t3_write_reg(adap, A_TP_PMM_RX_BASE, 0);
3137 t3_write_reg(adap, A_TP_PMM_RX_PAGE_SIZE, p->rx_pg_size);
3138 t3_write_reg(adap, A_TP_PMM_RX_MAX_PAGE, p->rx_num_pgs);
3140 pstructs = p->rx_num_pgs + p->tx_num_pgs;
3141 /* Add a bit of headroom and make multiple of 24 */
3143 pstructs -= pstructs % 24;
3144 t3_write_reg(adap, A_TP_CMM_MM_MAX_PSTRUCT, pstructs);
3146 m = tids * TCB_SIZE;
3147 mem_region(adap, m, (64 << 10) * 64, SG_EGR_CNTX_BADDR);
3148 mem_region(adap, m, (64 << 10) * 64, SG_CQ_CONTEXT_BADDR);
3149 t3_write_reg(adap, A_TP_CMM_TIMER_BASE, V_CMTIMERMAXNUM(timers) | m);
3150 m += ((p->ntimer_qs - 1) << timers_shift) + (1 << 22);
3151 mem_region(adap, m, pstructs * 64, TP_CMM_MM_BASE);
3152 mem_region(adap, m, 64 * (pstructs / 24), TP_CMM_MM_PS_FLST_BASE);
3153 mem_region(adap, m, 64 * (p->rx_num_pgs / 24), TP_CMM_MM_RX_FLST_BASE);
3154 mem_region(adap, m, 64 * (p->tx_num_pgs / 24), TP_CMM_MM_TX_FLST_BASE);
3156 m = (m + 4095) & ~0xfff;
3157 t3_write_reg(adap, A_CIM_SDRAM_BASE_ADDR, m);
3158 t3_write_reg(adap, A_CIM_SDRAM_ADDR_SIZE, p->cm_size - m);
3160 tids = (p->cm_size - m - (3 << 20)) / 3072 - 32;
3161 m = t3_mc5_size(&adap->mc5) - adap->params.mc5.nservers -
3162 adap->params.mc5.nfilters - adap->params.mc5.nroutes;
3164 adap->params.mc5.nservers += m - tids;
3167 static inline void tp_wr_indirect(adapter_t *adap, unsigned int addr, u32 val)
3169 t3_write_reg(adap, A_TP_PIO_ADDR, addr);
3170 t3_write_reg(adap, A_TP_PIO_DATA, val);
3173 static inline u32 tp_rd_indirect(adapter_t *adap, unsigned int addr)
3175 t3_write_reg(adap, A_TP_PIO_ADDR, addr);
3176 return t3_read_reg(adap, A_TP_PIO_DATA);
3179 static void tp_config(adapter_t *adap, const struct tp_params *p)
3181 t3_write_reg(adap, A_TP_GLOBAL_CONFIG, F_TXPACINGENABLE | F_PATHMTU |
3182 F_IPCHECKSUMOFFLOAD | F_UDPCHECKSUMOFFLOAD |
3183 F_TCPCHECKSUMOFFLOAD | V_IPTTL(64));
3184 t3_write_reg(adap, A_TP_TCP_OPTIONS, V_MTUDEFAULT(576) |
3185 F_MTUENABLE | V_WINDOWSCALEMODE(1) |
3186 V_TIMESTAMPSMODE(1) | V_SACKMODE(1) | V_SACKRX(1));
3187 t3_write_reg(adap, A_TP_DACK_CONFIG, V_AUTOSTATE3(1) |
3188 V_AUTOSTATE2(1) | V_AUTOSTATE1(0) |
3189 V_BYTETHRESHOLD(26880) | V_MSSTHRESHOLD(2) |
3190 F_AUTOCAREFUL | F_AUTOENABLE | V_DACK_MODE(1));
3191 t3_set_reg_field(adap, A_TP_IN_CONFIG, F_RXFBARBPRIO | F_TXFBARBPRIO,
3192 F_IPV6ENABLE | F_NICMODE);
3193 t3_write_reg(adap, A_TP_TX_RESOURCE_LIMIT, 0x18141814);
3194 t3_write_reg(adap, A_TP_PARA_REG4, 0x5050105);
3195 t3_set_reg_field(adap, A_TP_PARA_REG6, 0,
3196 adap->params.rev > 0 ? F_ENABLEESND :
3198 t3_set_reg_field(adap, A_TP_PC_CONFIG,
3200 F_ENABLEOCSPIFULL |F_TXDEFERENABLE | F_HEARBEATDACK |
3201 F_TXCONGESTIONMODE | F_RXCONGESTIONMODE);
3202 t3_set_reg_field(adap, A_TP_PC_CONFIG2, F_CHDRAFULL,
3203 F_ENABLEIPV6RSS | F_ENABLENONOFDTNLSYN |
3204 F_ENABLEARPMISS | F_DISBLEDAPARBIT0);
3205 t3_write_reg(adap, A_TP_PROXY_FLOW_CNTL, 1080);
3206 t3_write_reg(adap, A_TP_PROXY_FLOW_CNTL, 1000);
3208 if (adap->params.rev > 0) {
3209 tp_wr_indirect(adap, A_TP_EGRESS_CONFIG, F_REWRITEFORCETOSIZE);
3210 t3_set_reg_field(adap, A_TP_PARA_REG3, 0,
3211 F_TXPACEAUTO | F_TXPACEAUTOSTRICT);
3212 t3_set_reg_field(adap, A_TP_PC_CONFIG, F_LOCKTID, F_LOCKTID);
3213 tp_wr_indirect(adap, A_TP_VLAN_PRI_MAP, 0xfa50);
3214 tp_wr_indirect(adap, A_TP_MAC_MATCH_MAP0, 0xfac688);
3215 tp_wr_indirect(adap, A_TP_MAC_MATCH_MAP1, 0xfac688);
3217 t3_set_reg_field(adap, A_TP_PARA_REG3, 0, F_TXPACEFIXED);
3219 if (adap->params.rev == T3_REV_C)
3220 t3_set_reg_field(adap, A_TP_PC_CONFIG,
3221 V_TABLELATENCYDELTA(M_TABLELATENCYDELTA),
3222 V_TABLELATENCYDELTA(4));
3224 t3_write_reg(adap, A_TP_TX_MOD_QUEUE_WEIGHT1, 0);
3225 t3_write_reg(adap, A_TP_TX_MOD_QUEUE_WEIGHT0, 0);
3226 t3_write_reg(adap, A_TP_MOD_CHANNEL_WEIGHT, 0);
3227 t3_write_reg(adap, A_TP_MOD_RATE_LIMIT, 0xf2200000);
3229 if (adap->params.nports > 2) {
3230 t3_set_reg_field(adap, A_TP_PC_CONFIG2, 0,
3231 F_ENABLETXPORTFROMDA2 | F_ENABLETXPORTFROMDA |
3232 F_ENABLERXPORTFROMADDR);
3233 tp_wr_bits_indirect(adap, A_TP_QOS_RX_MAP_MODE,
3234 V_RXMAPMODE(M_RXMAPMODE), 0);
3235 tp_wr_indirect(adap, A_TP_INGRESS_CONFIG, V_BITPOS0(48) |
3236 V_BITPOS1(49) | V_BITPOS2(50) | V_BITPOS3(51) |
3237 F_ENABLEEXTRACT | F_ENABLEEXTRACTIONSFD |
3238 F_ENABLEINSERTION | F_ENABLEINSERTIONSFD);
3239 tp_wr_indirect(adap, A_TP_PREAMBLE_MSB, 0xfb000000);
3240 tp_wr_indirect(adap, A_TP_PREAMBLE_LSB, 0xd5);
3241 tp_wr_indirect(adap, A_TP_INTF_FROM_TX_PKT, F_INTFFROMTXPKT);
3245 /* TCP timer values in ms */
3246 #define TP_DACK_TIMER 50
3247 #define TP_RTO_MIN 250
3250 * tp_set_timers - set TP timing parameters
3251 * @adap: the adapter to set
3252 * @core_clk: the core clock frequency in Hz
3254 * Set TP's timing parameters, such as the various timer resolutions and
3255 * the TCP timer values.
3257 static void tp_set_timers(adapter_t *adap, unsigned int core_clk)
3259 unsigned int tre = adap->params.tp.tre;
3260 unsigned int dack_re = adap->params.tp.dack_re;
3261 unsigned int tstamp_re = fls(core_clk / 1000); /* 1ms, at least */
3262 unsigned int tps = core_clk >> tre;
3264 t3_write_reg(adap, A_TP_TIMER_RESOLUTION, V_TIMERRESOLUTION(tre) |
3265 V_DELAYEDACKRESOLUTION(dack_re) |
3266 V_TIMESTAMPRESOLUTION(tstamp_re));
3267 t3_write_reg(adap, A_TP_DACK_TIMER,
3268 (core_clk >> dack_re) / (1000 / TP_DACK_TIMER));
3269 t3_write_reg(adap, A_TP_TCP_BACKOFF_REG0, 0x3020100);
3270 t3_write_reg(adap, A_TP_TCP_BACKOFF_REG1, 0x7060504);
3271 t3_write_reg(adap, A_TP_TCP_BACKOFF_REG2, 0xb0a0908);
3272 t3_write_reg(adap, A_TP_TCP_BACKOFF_REG3, 0xf0e0d0c);
3273 t3_write_reg(adap, A_TP_SHIFT_CNT, V_SYNSHIFTMAX(6) |
3274 V_RXTSHIFTMAXR1(4) | V_RXTSHIFTMAXR2(15) |
3275 V_PERSHIFTBACKOFFMAX(8) | V_PERSHIFTMAX(8) |
3278 #define SECONDS * tps
3280 t3_write_reg(adap, A_TP_MSL,
3281 adap->params.rev > 0 ? 0 : 2 SECONDS);
3282 t3_write_reg(adap, A_TP_RXT_MIN, tps / (1000 / TP_RTO_MIN));
3283 t3_write_reg(adap, A_TP_RXT_MAX, 64 SECONDS);
3284 t3_write_reg(adap, A_TP_PERS_MIN, 5 SECONDS);
3285 t3_write_reg(adap, A_TP_PERS_MAX, 64 SECONDS);
3286 t3_write_reg(adap, A_TP_KEEP_IDLE, 7200 SECONDS);
3287 t3_write_reg(adap, A_TP_KEEP_INTVL, 75 SECONDS);
3288 t3_write_reg(adap, A_TP_INIT_SRTT, 3 SECONDS);
3289 t3_write_reg(adap, A_TP_FINWAIT2_TIMER, 600 SECONDS);
3295 * t3_tp_set_coalescing_size - set receive coalescing size
3296 * @adap: the adapter
3297 * @size: the receive coalescing size
3298 * @psh: whether a set PSH bit should deliver coalesced data
3300 * Set the receive coalescing size and PSH bit handling.
3302 int t3_tp_set_coalescing_size(adapter_t *adap, unsigned int size, int psh)
3306 if (size > MAX_RX_COALESCING_LEN)
3309 val = t3_read_reg(adap, A_TP_PARA_REG3);
3310 val &= ~(F_RXCOALESCEENABLE | F_RXCOALESCEPSHEN);
3313 val |= F_RXCOALESCEENABLE;
3315 val |= F_RXCOALESCEPSHEN;
3316 size = min(MAX_RX_COALESCING_LEN, size);
3317 t3_write_reg(adap, A_TP_PARA_REG2, V_RXCOALESCESIZE(size) |
3318 V_MAXRXDATA(MAX_RX_COALESCING_LEN));
3320 t3_write_reg(adap, A_TP_PARA_REG3, val);
3325 * t3_tp_set_max_rxsize - set the max receive size
3326 * @adap: the adapter
3327 * @size: the max receive size
3329 * Set TP's max receive size. This is the limit that applies when
3330 * receive coalescing is disabled.
3332 void t3_tp_set_max_rxsize(adapter_t *adap, unsigned int size)
3334 t3_write_reg(adap, A_TP_PARA_REG7,
3335 V_PMMAXXFERLEN0(size) | V_PMMAXXFERLEN1(size));
3338 static void __devinit init_mtus(unsigned short mtus[])
3341 * See draft-mathis-plpmtud-00.txt for the values. The min is 88 so
3342 * it can accommodate max size TCP/IP headers when SACK and timestamps
3343 * are enabled and still have at least 8 bytes of payload.
3364 * init_cong_ctrl - initialize congestion control parameters
3365 * @a: the alpha values for congestion control
3366 * @b: the beta values for congestion control
3368 * Initialize the congestion control parameters.
3370 static void __devinit init_cong_ctrl(unsigned short *a, unsigned short *b)
3372 a[0] = a[1] = a[2] = a[3] = a[4] = a[5] = a[6] = a[7] = a[8] = 1;
3397 b[0] = b[1] = b[2] = b[3] = b[4] = b[5] = b[6] = b[7] = b[8] = 0;
3400 b[13] = b[14] = b[15] = b[16] = 3;
3401 b[17] = b[18] = b[19] = b[20] = b[21] = 4;
3402 b[22] = b[23] = b[24] = b[25] = b[26] = b[27] = 5;
3407 /* The minimum additive increment value for the congestion control table */
3408 #define CC_MIN_INCR 2U
3411 * t3_load_mtus - write the MTU and congestion control HW tables
3412 * @adap: the adapter
3413 * @mtus: the unrestricted values for the MTU table
3414 * @alpha: the values for the congestion control alpha parameter
3415 * @beta: the values for the congestion control beta parameter
3416 * @mtu_cap: the maximum permitted effective MTU
3418 * Write the MTU table with the supplied MTUs capping each at &mtu_cap.
3419 * Update the high-speed congestion control table with the supplied alpha,
3422 void t3_load_mtus(adapter_t *adap, unsigned short mtus[NMTUS],
3423 unsigned short alpha[NCCTRL_WIN],
3424 unsigned short beta[NCCTRL_WIN], unsigned short mtu_cap)
3426 static const unsigned int avg_pkts[NCCTRL_WIN] = {
3427 2, 6, 10, 14, 20, 28, 40, 56, 80, 112, 160, 224, 320, 448, 640,
3428 896, 1281, 1792, 2560, 3584, 5120, 7168, 10240, 14336, 20480,
3429 28672, 40960, 57344, 81920, 114688, 163840, 229376 };
3433 for (i = 0; i < NMTUS; ++i) {
3434 unsigned int mtu = min(mtus[i], mtu_cap);
3435 unsigned int log2 = fls(mtu);
3437 if (!(mtu & ((1 << log2) >> 2))) /* round */
3439 t3_write_reg(adap, A_TP_MTU_TABLE,
3440 (i << 24) | (log2 << 16) | mtu);
3442 for (w = 0; w < NCCTRL_WIN; ++w) {
3445 inc = max(((mtu - 40) * alpha[w]) / avg_pkts[w],
3448 t3_write_reg(adap, A_TP_CCTRL_TABLE, (i << 21) |
3449 (w << 16) | (beta[w] << 13) | inc);
3455 * t3_read_hw_mtus - returns the values in the HW MTU table
3456 * @adap: the adapter
3457 * @mtus: where to store the HW MTU values
3459 * Reads the HW MTU table.
3461 void t3_read_hw_mtus(adapter_t *adap, unsigned short mtus[NMTUS])
3465 for (i = 0; i < NMTUS; ++i) {
3468 t3_write_reg(adap, A_TP_MTU_TABLE, 0xff000000 | i);
3469 val = t3_read_reg(adap, A_TP_MTU_TABLE);
3470 mtus[i] = val & 0x3fff;
3475 * t3_get_cong_cntl_tab - reads the congestion control table
3476 * @adap: the adapter
3477 * @incr: where to store the alpha values
3479 * Reads the additive increments programmed into the HW congestion
3482 void t3_get_cong_cntl_tab(adapter_t *adap,
3483 unsigned short incr[NMTUS][NCCTRL_WIN])
3485 unsigned int mtu, w;
3487 for (mtu = 0; mtu < NMTUS; ++mtu)
3488 for (w = 0; w < NCCTRL_WIN; ++w) {
3489 t3_write_reg(adap, A_TP_CCTRL_TABLE,
3490 0xffff0000 | (mtu << 5) | w);
3491 incr[mtu][w] = (unsigned short)t3_read_reg(adap,
3492 A_TP_CCTRL_TABLE) & 0x1fff;
3497 * t3_tp_get_mib_stats - read TP's MIB counters
3498 * @adap: the adapter
3499 * @tps: holds the returned counter values
3501 * Returns the values of TP's MIB counters.
3503 void t3_tp_get_mib_stats(adapter_t *adap, struct tp_mib_stats *tps)
3505 t3_read_indirect(adap, A_TP_MIB_INDEX, A_TP_MIB_RDATA, (u32 *)tps,
3506 sizeof(*tps) / sizeof(u32), 0);
3510 * t3_read_pace_tbl - read the pace table
3511 * @adap: the adapter
3512 * @pace_vals: holds the returned values
3514 * Returns the values of TP's pace table in nanoseconds.
3516 void t3_read_pace_tbl(adapter_t *adap, unsigned int pace_vals[NTX_SCHED])
3518 unsigned int i, tick_ns = dack_ticks_to_usec(adap, 1000);
3520 for (i = 0; i < NTX_SCHED; i++) {
3521 t3_write_reg(adap, A_TP_PACE_TABLE, 0xffff0000 + i);
3522 pace_vals[i] = t3_read_reg(adap, A_TP_PACE_TABLE) * tick_ns;
3527 * t3_set_pace_tbl - set the pace table
3528 * @adap: the adapter
3529 * @pace_vals: the pace values in nanoseconds
3530 * @start: index of the first entry in the HW pace table to set
3531 * @n: how many entries to set
3533 * Sets (a subset of the) HW pace table.
3535 void t3_set_pace_tbl(adapter_t *adap, unsigned int *pace_vals,
3536 unsigned int start, unsigned int n)
3538 unsigned int tick_ns = dack_ticks_to_usec(adap, 1000);
3540 for ( ; n; n--, start++, pace_vals++)
3541 t3_write_reg(adap, A_TP_PACE_TABLE, (start << 16) |
3542 ((*pace_vals + tick_ns / 2) / tick_ns));
3545 #define ulp_region(adap, name, start, len) \
3546 t3_write_reg((adap), A_ULPRX_ ## name ## _LLIMIT, (start)); \
3547 t3_write_reg((adap), A_ULPRX_ ## name ## _ULIMIT, \
3548 (start) + (len) - 1); \
3551 #define ulptx_region(adap, name, start, len) \
3552 t3_write_reg((adap), A_ULPTX_ ## name ## _LLIMIT, (start)); \
3553 t3_write_reg((adap), A_ULPTX_ ## name ## _ULIMIT, \
3554 (start) + (len) - 1)
3556 static void ulp_config(adapter_t *adap, const struct tp_params *p)
3558 unsigned int m = p->chan_rx_size;
3560 ulp_region(adap, ISCSI, m, p->chan_rx_size / 8);
3561 ulp_region(adap, TDDP, m, p->chan_rx_size / 8);
3562 ulptx_region(adap, TPT, m, p->chan_rx_size / 4);
3563 ulp_region(adap, STAG, m, p->chan_rx_size / 4);
3564 ulp_region(adap, RQ, m, p->chan_rx_size / 4);
3565 ulptx_region(adap, PBL, m, p->chan_rx_size / 4);
3566 ulp_region(adap, PBL, m, p->chan_rx_size / 4);
3567 t3_write_reg(adap, A_ULPRX_TDDP_TAGMASK, 0xffffffff);
3572 * t3_set_proto_sram - set the contents of the protocol sram
3573 * @adapter: the adapter
3574 * @data: the protocol image
3576 * Write the contents of the protocol SRAM.
3578 int t3_set_proto_sram(adapter_t *adap, const u8 *data)
3581 const u32 *buf = (const u32 *)data;
3583 for (i = 0; i < PROTO_SRAM_LINES; i++) {
3584 t3_write_reg(adap, A_TP_EMBED_OP_FIELD5, cpu_to_be32(*buf++));
3585 t3_write_reg(adap, A_TP_EMBED_OP_FIELD4, cpu_to_be32(*buf++));
3586 t3_write_reg(adap, A_TP_EMBED_OP_FIELD3, cpu_to_be32(*buf++));
3587 t3_write_reg(adap, A_TP_EMBED_OP_FIELD2, cpu_to_be32(*buf++));
3588 t3_write_reg(adap, A_TP_EMBED_OP_FIELD1, cpu_to_be32(*buf++));
3590 t3_write_reg(adap, A_TP_EMBED_OP_FIELD0, i << 1 | 1 << 31);
3591 if (t3_wait_op_done(adap, A_TP_EMBED_OP_FIELD0, 1, 1, 5, 1))
3598 * t3_config_trace_filter - configure one of the tracing filters
3599 * @adapter: the adapter
3600 * @tp: the desired trace filter parameters
3601 * @filter_index: which filter to configure
3602 * @invert: if set non-matching packets are traced instead of matching ones
3603 * @enable: whether to enable or disable the filter
3605 * Configures one of the tracing filters available in HW.
3607 void t3_config_trace_filter(adapter_t *adapter, const struct trace_params *tp,
3608 int filter_index, int invert, int enable)
3610 u32 addr, key[4], mask[4];
3612 key[0] = tp->sport | (tp->sip << 16);
3613 key[1] = (tp->sip >> 16) | (tp->dport << 16);
3615 key[3] = tp->proto | (tp->vlan << 8) | (tp->intf << 20);
3617 mask[0] = tp->sport_mask | (tp->sip_mask << 16);
3618 mask[1] = (tp->sip_mask >> 16) | (tp->dport_mask << 16);
3619 mask[2] = tp->dip_mask;
3620 mask[3] = tp->proto_mask | (tp->vlan_mask << 8) | (tp->intf_mask << 20);
3623 key[3] |= (1 << 29);
3625 key[3] |= (1 << 28);
3627 addr = filter_index ? A_TP_RX_TRC_KEY0 : A_TP_TX_TRC_KEY0;
3628 tp_wr_indirect(adapter, addr++, key[0]);
3629 tp_wr_indirect(adapter, addr++, mask[0]);
3630 tp_wr_indirect(adapter, addr++, key[1]);
3631 tp_wr_indirect(adapter, addr++, mask[1]);
3632 tp_wr_indirect(adapter, addr++, key[2]);
3633 tp_wr_indirect(adapter, addr++, mask[2]);
3634 tp_wr_indirect(adapter, addr++, key[3]);
3635 tp_wr_indirect(adapter, addr, mask[3]);
3636 (void) t3_read_reg(adapter, A_TP_PIO_DATA);
3640 * t3_query_trace_filter - query a tracing filter
3641 * @adapter: the adapter
3642 * @tp: the current trace filter parameters
3643 * @filter_index: which filter to query
3644 * @inverted: non-zero if the filter is inverted
3645 * @enabled: non-zero if the filter is enabled
3647 * Returns the current settings of the specified HW tracing filter.
3649 void t3_query_trace_filter(adapter_t *adapter, struct trace_params *tp,
3650 int filter_index, int *inverted, int *enabled)
3652 u32 addr, key[4], mask[4];
3654 addr = filter_index ? A_TP_RX_TRC_KEY0 : A_TP_TX_TRC_KEY0;
3655 key[0] = tp_rd_indirect(adapter, addr++);
3656 mask[0] = tp_rd_indirect(adapter, addr++);
3657 key[1] = tp_rd_indirect(adapter, addr++);
3658 mask[1] = tp_rd_indirect(adapter, addr++);
3659 key[2] = tp_rd_indirect(adapter, addr++);
3660 mask[2] = tp_rd_indirect(adapter, addr++);
3661 key[3] = tp_rd_indirect(adapter, addr++);
3662 mask[3] = tp_rd_indirect(adapter, addr);
3664 tp->sport = key[0] & 0xffff;
3665 tp->sip = (key[0] >> 16) | ((key[1] & 0xffff) << 16);
3666 tp->dport = key[1] >> 16;
3668 tp->proto = key[3] & 0xff;
3669 tp->vlan = key[3] >> 8;
3670 tp->intf = key[3] >> 20;
3672 tp->sport_mask = mask[0] & 0xffff;
3673 tp->sip_mask = (mask[0] >> 16) | ((mask[1] & 0xffff) << 16);
3674 tp->dport_mask = mask[1] >> 16;
3675 tp->dip_mask = mask[2];
3676 tp->proto_mask = mask[3] & 0xff;
3677 tp->vlan_mask = mask[3] >> 8;
3678 tp->intf_mask = mask[3] >> 20;
3680 *inverted = key[3] & (1 << 29);
3681 *enabled = key[3] & (1 << 28);
3685 * t3_config_sched - configure a HW traffic scheduler
3686 * @adap: the adapter
3687 * @kbps: target rate in Kbps
3688 * @sched: the scheduler index
3690 * Configure a Tx HW scheduler for the target rate.
3692 int t3_config_sched(adapter_t *adap, unsigned int kbps, int sched)
3694 unsigned int v, tps, cpt, bpt, delta, mindelta = ~0;
3695 unsigned int clk = adap->params.vpd.cclk * 1000;
3696 unsigned int selected_cpt = 0, selected_bpt = 0;
3699 kbps *= 125; /* -> bytes */
3700 for (cpt = 1; cpt <= 255; cpt++) {
3702 bpt = (kbps + tps / 2) / tps;
3703 if (bpt > 0 && bpt <= 255) {
3705 delta = v >= kbps ? v - kbps : kbps - v;
3706 if (delta < mindelta) {
3711 } else if (selected_cpt)
3717 t3_write_reg(adap, A_TP_TM_PIO_ADDR,
3718 A_TP_TX_MOD_Q1_Q0_RATE_LIMIT - sched / 2);
3719 v = t3_read_reg(adap, A_TP_TM_PIO_DATA);
3721 v = (v & 0xffff) | (selected_cpt << 16) | (selected_bpt << 24);
3723 v = (v & 0xffff0000) | selected_cpt | (selected_bpt << 8);
3724 t3_write_reg(adap, A_TP_TM_PIO_DATA, v);
3729 * t3_set_sched_ipg - set the IPG for a Tx HW packet rate scheduler
3730 * @adap: the adapter
3731 * @sched: the scheduler index
3732 * @ipg: the interpacket delay in tenths of nanoseconds
3734 * Set the interpacket delay for a HW packet rate scheduler.
3736 int t3_set_sched_ipg(adapter_t *adap, int sched, unsigned int ipg)
3738 unsigned int v, addr = A_TP_TX_MOD_Q1_Q0_TIMER_SEPARATOR - sched / 2;
3740 /* convert ipg to nearest number of core clocks */
3741 ipg *= core_ticks_per_usec(adap);
3742 ipg = (ipg + 5000) / 10000;
3746 t3_write_reg(adap, A_TP_TM_PIO_ADDR, addr);
3747 v = t3_read_reg(adap, A_TP_TM_PIO_DATA);
3749 v = (v & 0xffff) | (ipg << 16);
3751 v = (v & 0xffff0000) | ipg;
3752 t3_write_reg(adap, A_TP_TM_PIO_DATA, v);
3753 t3_read_reg(adap, A_TP_TM_PIO_DATA);
3758 * t3_get_tx_sched - get the configuration of a Tx HW traffic scheduler
3759 * @adap: the adapter
3760 * @sched: the scheduler index
3761 * @kbps: the byte rate in Kbps
3762 * @ipg: the interpacket delay in tenths of nanoseconds
3764 * Return the current configuration of a HW Tx scheduler.
3766 void t3_get_tx_sched(adapter_t *adap, unsigned int sched, unsigned int *kbps,
3769 unsigned int v, addr, bpt, cpt;
3772 addr = A_TP_TX_MOD_Q1_Q0_RATE_LIMIT - sched / 2;
3773 t3_write_reg(adap, A_TP_TM_PIO_ADDR, addr);
3774 v = t3_read_reg(adap, A_TP_TM_PIO_DATA);
3777 bpt = (v >> 8) & 0xff;
3780 *kbps = 0; /* scheduler disabled */
3782 v = (adap->params.vpd.cclk * 1000) / cpt;
3783 *kbps = (v * bpt) / 125;
3787 addr = A_TP_TX_MOD_Q1_Q0_TIMER_SEPARATOR - sched / 2;
3788 t3_write_reg(adap, A_TP_TM_PIO_ADDR, addr);
3789 v = t3_read_reg(adap, A_TP_TM_PIO_DATA);
3793 *ipg = (10000 * v) / core_ticks_per_usec(adap);
3798 * tp_init - configure TP
3799 * @adap: the adapter
3800 * @p: TP configuration parameters
3802 * Initializes the TP HW module.
3804 static int tp_init(adapter_t *adap, const struct tp_params *p)
3809 t3_set_vlan_accel(adap, 3, 0);
3811 if (is_offload(adap)) {
3812 tp_set_timers(adap, adap->params.vpd.cclk * 1000);
3813 t3_write_reg(adap, A_TP_RESET, F_FLSTINITENABLE);
3814 busy = t3_wait_op_done(adap, A_TP_RESET, F_FLSTINITENABLE,
3817 CH_ERR(adap, "TP initialization timed out\n");
3821 t3_write_reg(adap, A_TP_RESET, F_TPRESET);
3826 * t3_mps_set_active_ports - configure port failover
3827 * @adap: the adapter
3828 * @port_mask: bitmap of active ports
3830 * Sets the active ports according to the supplied bitmap.
3832 int t3_mps_set_active_ports(adapter_t *adap, unsigned int port_mask)
3834 if (port_mask & ~((1 << adap->params.nports) - 1))
3836 t3_set_reg_field(adap, A_MPS_CFG, F_PORT1ACTIVE | F_PORT0ACTIVE,
3837 port_mask << S_PORT0ACTIVE);
3842 * chan_init_hw - channel-dependent HW initialization
3843 * @adap: the adapter
3844 * @chan_map: bitmap of Tx channels being used
3846 * Perform the bits of HW initialization that are dependent on the Tx
3847 * channels being used.
3849 static void chan_init_hw(adapter_t *adap, unsigned int chan_map)
3853 if (chan_map != 3) { /* one channel */
3854 t3_set_reg_field(adap, A_ULPRX_CTL, F_ROUND_ROBIN, 0);
3855 t3_set_reg_field(adap, A_ULPTX_CONFIG, F_CFG_RR_ARB, 0);
3856 t3_write_reg(adap, A_MPS_CFG, F_TPRXPORTEN | F_ENFORCEPKT |
3857 (chan_map == 1 ? F_TPTXPORT0EN | F_PORT0ACTIVE :
3858 F_TPTXPORT1EN | F_PORT1ACTIVE));
3859 t3_write_reg(adap, A_PM1_TX_CFG,
3860 chan_map == 1 ? 0xffffffff : 0);
3862 t3_write_reg(adap, A_TP_TX_MOD_QUEUE_REQ_MAP,
3863 V_TX_MOD_QUEUE_REQ_MAP(0xff));
3864 t3_write_reg(adap, A_TP_TX_MOD_QUE_TABLE, (12 << 16) | 0xd9c8);
3865 t3_write_reg(adap, A_TP_TX_MOD_QUE_TABLE, (13 << 16) | 0xfbea);
3866 } else { /* two channels */
3867 t3_set_reg_field(adap, A_ULPRX_CTL, 0, F_ROUND_ROBIN);
3868 t3_set_reg_field(adap, A_ULPTX_CONFIG, 0, F_CFG_RR_ARB);
3869 t3_write_reg(adap, A_ULPTX_DMA_WEIGHT,
3870 V_D1_WEIGHT(16) | V_D0_WEIGHT(16));
3871 t3_write_reg(adap, A_MPS_CFG, F_TPTXPORT0EN | F_TPTXPORT1EN |
3872 F_TPRXPORTEN | F_PORT0ACTIVE | F_PORT1ACTIVE |
3874 t3_write_reg(adap, A_PM1_TX_CFG, 0x80008000);
3875 t3_set_reg_field(adap, A_TP_PC_CONFIG, 0, F_TXTOSQUEUEMAPMODE);
3876 t3_write_reg(adap, A_TP_TX_MOD_QUEUE_REQ_MAP,
3877 V_TX_MOD_QUEUE_REQ_MAP(0xaa));
3878 for (i = 0; i < 16; i++)
3879 t3_write_reg(adap, A_TP_TX_MOD_QUE_TABLE,
3880 (i << 16) | 0x1010);
3881 t3_write_reg(adap, A_TP_TX_MOD_QUE_TABLE, (12 << 16) | 0xba98);
3882 t3_write_reg(adap, A_TP_TX_MOD_QUE_TABLE, (13 << 16) | 0xfedc);
3886 static int calibrate_xgm(adapter_t *adapter)
3888 if (uses_xaui(adapter)) {
3891 for (i = 0; i < 5; ++i) {
3892 t3_write_reg(adapter, A_XGM_XAUI_IMP, 0);
3893 (void) t3_read_reg(adapter, A_XGM_XAUI_IMP);
3895 v = t3_read_reg(adapter, A_XGM_XAUI_IMP);
3896 if (!(v & (F_XGM_CALFAULT | F_CALBUSY))) {
3897 t3_write_reg(adapter, A_XGM_XAUI_IMP,
3898 V_XAUIIMP(G_CALIMP(v) >> 2));
3902 CH_ERR(adapter, "MAC calibration failed\n");
3905 t3_write_reg(adapter, A_XGM_RGMII_IMP,
3906 V_RGMIIIMPPD(2) | V_RGMIIIMPPU(3));
3907 t3_set_reg_field(adapter, A_XGM_RGMII_IMP, F_XGM_IMPSETUPDATE,
3908 F_XGM_IMPSETUPDATE);
3913 static void calibrate_xgm_t3b(adapter_t *adapter)
3915 if (!uses_xaui(adapter)) {
3916 t3_write_reg(adapter, A_XGM_RGMII_IMP, F_CALRESET |
3917 F_CALUPDATE | V_RGMIIIMPPD(2) | V_RGMIIIMPPU(3));
3918 t3_set_reg_field(adapter, A_XGM_RGMII_IMP, F_CALRESET, 0);
3919 t3_set_reg_field(adapter, A_XGM_RGMII_IMP, 0,
3920 F_XGM_IMPSETUPDATE);
3921 t3_set_reg_field(adapter, A_XGM_RGMII_IMP, F_XGM_IMPSETUPDATE,
3923 t3_set_reg_field(adapter, A_XGM_RGMII_IMP, F_CALUPDATE, 0);
3924 t3_set_reg_field(adapter, A_XGM_RGMII_IMP, 0, F_CALUPDATE);
3928 struct mc7_timing_params {
3929 unsigned char ActToPreDly;
3930 unsigned char ActToRdWrDly;
3931 unsigned char PreCyc;
3932 unsigned char RefCyc[5];
3933 unsigned char BkCyc;
3934 unsigned char WrToRdDly;
3935 unsigned char RdToWrDly;
3939 * Write a value to a register and check that the write completed. These
3940 * writes normally complete in a cycle or two, so one read should suffice.
3941 * The very first read exists to flush the posted write to the device.
3943 static int wrreg_wait(adapter_t *adapter, unsigned int addr, u32 val)
3945 t3_write_reg(adapter, addr, val);
3946 (void) t3_read_reg(adapter, addr); /* flush */
3947 if (!(t3_read_reg(adapter, addr) & F_BUSY))
3949 CH_ERR(adapter, "write to MC7 register 0x%x timed out\n", addr);
3953 static int mc7_init(struct mc7 *mc7, unsigned int mc7_clock, int mem_type)
3955 static const unsigned int mc7_mode[] = {
3956 0x632, 0x642, 0x652, 0x432, 0x442
3958 static const struct mc7_timing_params mc7_timings[] = {
3959 { 12, 3, 4, { 20, 28, 34, 52, 0 }, 15, 6, 4 },
3960 { 12, 4, 5, { 20, 28, 34, 52, 0 }, 16, 7, 4 },
3961 { 12, 5, 6, { 20, 28, 34, 52, 0 }, 17, 8, 4 },
3962 { 9, 3, 4, { 15, 21, 26, 39, 0 }, 12, 6, 4 },
3963 { 9, 4, 5, { 15, 21, 26, 39, 0 }, 13, 7, 4 }
3967 unsigned int width, density, slow, attempts;
3968 adapter_t *adapter = mc7->adapter;
3969 const struct mc7_timing_params *p = &mc7_timings[mem_type];
3974 val = t3_read_reg(adapter, mc7->offset + A_MC7_CFG);
3975 slow = val & F_SLOW;
3976 width = G_WIDTH(val);
3977 density = G_DEN(val);
3979 t3_write_reg(adapter, mc7->offset + A_MC7_CFG, val | F_IFEN);
3980 val = t3_read_reg(adapter, mc7->offset + A_MC7_CFG); /* flush */
3984 t3_write_reg(adapter, mc7->offset + A_MC7_CAL, F_SGL_CAL_EN);
3985 (void) t3_read_reg(adapter, mc7->offset + A_MC7_CAL);
3987 if (t3_read_reg(adapter, mc7->offset + A_MC7_CAL) &
3988 (F_BUSY | F_SGL_CAL_EN | F_CAL_FAULT)) {
3989 CH_ERR(adapter, "%s MC7 calibration timed out\n",
3995 t3_write_reg(adapter, mc7->offset + A_MC7_PARM,
3996 V_ACTTOPREDLY(p->ActToPreDly) |
3997 V_ACTTORDWRDLY(p->ActToRdWrDly) | V_PRECYC(p->PreCyc) |
3998 V_REFCYC(p->RefCyc[density]) | V_BKCYC(p->BkCyc) |
3999 V_WRTORDDLY(p->WrToRdDly) | V_RDTOWRDLY(p->RdToWrDly));
4001 t3_write_reg(adapter, mc7->offset + A_MC7_CFG,
4002 val | F_CLKEN | F_TERM150);
4003 (void) t3_read_reg(adapter, mc7->offset + A_MC7_CFG); /* flush */
4006 t3_set_reg_field(adapter, mc7->offset + A_MC7_DLL, F_DLLENB,
4011 if (wrreg_wait(adapter, mc7->offset + A_MC7_PRE, 0) ||
4012 wrreg_wait(adapter, mc7->offset + A_MC7_EXT_MODE2, 0) ||
4013 wrreg_wait(adapter, mc7->offset + A_MC7_EXT_MODE3, 0) ||
4014 wrreg_wait(adapter, mc7->offset + A_MC7_EXT_MODE1, val))
4018 t3_write_reg(adapter, mc7->offset + A_MC7_MODE, 0x100);
4019 t3_set_reg_field(adapter, mc7->offset + A_MC7_DLL,
4024 if (wrreg_wait(adapter, mc7->offset + A_MC7_PRE, 0) ||
4025 wrreg_wait(adapter, mc7->offset + A_MC7_REF, 0) ||
4026 wrreg_wait(adapter, mc7->offset + A_MC7_REF, 0) ||
4027 wrreg_wait(adapter, mc7->offset + A_MC7_MODE,
4028 mc7_mode[mem_type]) ||
4029 wrreg_wait(adapter, mc7->offset + A_MC7_EXT_MODE1, val | 0x380) ||
4030 wrreg_wait(adapter, mc7->offset + A_MC7_EXT_MODE1, val))
4033 /* clock value is in KHz */
4034 mc7_clock = mc7_clock * 7812 + mc7_clock / 2; /* ns */
4035 mc7_clock /= 1000000; /* KHz->MHz, ns->us */
4037 t3_write_reg(adapter, mc7->offset + A_MC7_REF,
4038 F_PERREFEN | V_PREREFDIV(mc7_clock));
4039 (void) t3_read_reg(adapter, mc7->offset + A_MC7_REF); /* flush */
4041 t3_write_reg(adapter, mc7->offset + A_MC7_ECC,
4042 F_ECCGENEN | F_ECCCHKEN);
4043 t3_write_reg(adapter, mc7->offset + A_MC7_BIST_DATA, 0);
4044 t3_write_reg(adapter, mc7->offset + A_MC7_BIST_ADDR_BEG, 0);
4045 t3_write_reg(adapter, mc7->offset + A_MC7_BIST_ADDR_END,
4046 (mc7->size << width) - 1);
4047 t3_write_reg(adapter, mc7->offset + A_MC7_BIST_OP, V_OP(1));
4048 (void) t3_read_reg(adapter, mc7->offset + A_MC7_BIST_OP); /* flush */
4053 val = t3_read_reg(adapter, mc7->offset + A_MC7_BIST_OP);
4054 } while ((val & F_BUSY) && --attempts);
4056 CH_ERR(adapter, "%s MC7 BIST timed out\n", mc7->name);
4060 /* Enable normal memory accesses. */
4061 t3_set_reg_field(adapter, mc7->offset + A_MC7_CFG, 0, F_RDY);
4068 static void config_pcie(adapter_t *adap)
4070 static const u16 ack_lat[4][6] = {
4071 { 237, 416, 559, 1071, 2095, 4143 },
4072 { 128, 217, 289, 545, 1057, 2081 },
4073 { 73, 118, 154, 282, 538, 1050 },
4074 { 67, 107, 86, 150, 278, 534 }
4076 static const u16 rpl_tmr[4][6] = {
4077 { 711, 1248, 1677, 3213, 6285, 12429 },
4078 { 384, 651, 867, 1635, 3171, 6243 },
4079 { 219, 354, 462, 846, 1614, 3150 },
4080 { 201, 321, 258, 450, 834, 1602 }
4084 unsigned int log2_width, pldsize;
4085 unsigned int fst_trn_rx, fst_trn_tx, acklat, rpllmt;
4087 t3_os_pci_read_config_2(adap,
4088 adap->params.pci.pcie_cap_addr + PCI_EXP_DEVCTL,
4090 pldsize = (val & PCI_EXP_DEVCTL_PAYLOAD) >> 5;
4093 * Gen2 adapter pcie bridge compatibility requires minimum
4094 * Max_Read_Request_size
4096 t3_os_pci_read_config_2(adap, 0x2, &devid);
4097 if (devid == 0x37) {
4098 t3_os_pci_write_config_2(adap,
4099 adap->params.pci.pcie_cap_addr + PCI_EXP_DEVCTL,
4100 val & ~PCI_EXP_DEVCTL_READRQ & ~PCI_EXP_DEVCTL_PAYLOAD);
4104 t3_os_pci_read_config_2(adap,
4105 adap->params.pci.pcie_cap_addr + PCI_EXP_LNKCTL,
4108 fst_trn_tx = G_NUMFSTTRNSEQ(t3_read_reg(adap, A_PCIE_PEX_CTRL0));
4109 fst_trn_rx = adap->params.rev == 0 ? fst_trn_tx :
4110 G_NUMFSTTRNSEQRX(t3_read_reg(adap, A_PCIE_MODE));
4111 log2_width = fls(adap->params.pci.width) - 1;
4112 acklat = ack_lat[log2_width][pldsize];
4113 if (val & 1) /* check LOsEnable */
4114 acklat += fst_trn_tx * 4;
4115 rpllmt = rpl_tmr[log2_width][pldsize] + fst_trn_rx * 4;
4117 if (adap->params.rev == 0)
4118 t3_set_reg_field(adap, A_PCIE_PEX_CTRL1,
4119 V_T3A_ACKLAT(M_T3A_ACKLAT),
4120 V_T3A_ACKLAT(acklat));
4122 t3_set_reg_field(adap, A_PCIE_PEX_CTRL1, V_ACKLAT(M_ACKLAT),
4125 t3_set_reg_field(adap, A_PCIE_PEX_CTRL0, V_REPLAYLMT(M_REPLAYLMT),
4126 V_REPLAYLMT(rpllmt));
4128 t3_write_reg(adap, A_PCIE_PEX_ERR, 0xffffffff);
4129 t3_set_reg_field(adap, A_PCIE_CFG, 0,
4130 F_ENABLELINKDWNDRST | F_ENABLELINKDOWNRST |
4131 F_PCIE_DMASTOPEN | F_PCIE_CLIDECEN);
4135 * t3_init_hw - initialize and configure T3 HW modules
4136 * @adapter: the adapter
4137 * @fw_params: initial parameters to pass to firmware (optional)
4139 * Initialize and configure T3 HW modules. This performs the
4140 * initialization steps that need to be done once after a card is reset.
4141 * MAC and PHY initialization is handled separarely whenever a port is
4144 * @fw_params are passed to FW and their value is platform dependent.
4145 * Only the top 8 bits are available for use, the rest must be 0.
4147 int t3_init_hw(adapter_t *adapter, u32 fw_params)
4149 int err = -EIO, attempts, i;
4150 const struct vpd_params *vpd = &adapter->params.vpd;
4152 if (adapter->params.rev > 0)
4153 calibrate_xgm_t3b(adapter);
4154 else if (calibrate_xgm(adapter))
4157 if (adapter->params.nports > 2)
4158 t3_mac_init(&adap2pinfo(adapter, 0)->mac);
4161 partition_mem(adapter, &adapter->params.tp);
4163 if (mc7_init(&adapter->pmrx, vpd->mclk, vpd->mem_timing) ||
4164 mc7_init(&adapter->pmtx, vpd->mclk, vpd->mem_timing) ||
4165 mc7_init(&adapter->cm, vpd->mclk, vpd->mem_timing) ||
4166 t3_mc5_init(&adapter->mc5, adapter->params.mc5.nservers,
4167 adapter->params.mc5.nfilters,
4168 adapter->params.mc5.nroutes))
4171 for (i = 0; i < 32; i++)
4172 if (clear_sge_ctxt(adapter, i, F_CQ))
4176 if (tp_init(adapter, &adapter->params.tp))
4179 t3_tp_set_coalescing_size(adapter,
4180 min(adapter->params.sge.max_pkt_size,
4181 MAX_RX_COALESCING_LEN), 1);
4182 t3_tp_set_max_rxsize(adapter,
4183 min(adapter->params.sge.max_pkt_size, 16384U));
4184 ulp_config(adapter, &adapter->params.tp);
4185 if (is_pcie(adapter))
4186 config_pcie(adapter);
4188 t3_set_reg_field(adapter, A_PCIX_CFG, 0,
4189 F_DMASTOPEN | F_CLIDECEN);
4191 if (adapter->params.rev == T3_REV_C)
4192 t3_set_reg_field(adapter, A_ULPTX_CONFIG, 0,
4193 F_CFG_CQE_SOP_MASK);
4195 t3_write_reg(adapter, A_PM1_RX_CFG, 0xffffffff);
4196 t3_write_reg(adapter, A_PM1_RX_MODE, 0);
4197 t3_write_reg(adapter, A_PM1_TX_MODE, 0);
4198 chan_init_hw(adapter, adapter->params.chan_map);
4199 t3_sge_init(adapter, &adapter->params.sge);
4200 t3_set_reg_field(adapter, A_PL_RST, 0, F_FATALPERREN);
4202 t3_write_reg(adapter, A_T3DBG_GPIO_ACT_LOW, calc_gpio_intr(adapter));
4204 t3_write_reg(adapter, A_CIM_HOST_ACC_DATA, vpd->uclk | fw_params);
4205 t3_write_reg(adapter, A_CIM_BOOT_CFG,
4206 V_BOOTADDR(FW_FLASH_BOOT_ADDR >> 2));
4207 (void) t3_read_reg(adapter, A_CIM_BOOT_CFG); /* flush */
4210 do { /* wait for uP to initialize */
4212 } while (t3_read_reg(adapter, A_CIM_HOST_ACC_DATA) && --attempts);
4214 CH_ERR(adapter, "uP initialization timed out\n");
4224 * get_pci_mode - determine a card's PCI mode
4225 * @adapter: the adapter
4226 * @p: where to store the PCI settings
4228 * Determines a card's PCI mode and associated parameters, such as speed
4231 static void __devinit get_pci_mode(adapter_t *adapter, struct pci_params *p)
4233 static unsigned short speed_map[] = { 33, 66, 100, 133 };
4234 u32 pci_mode, pcie_cap;
4236 pcie_cap = t3_os_find_pci_capability(adapter, PCI_CAP_ID_EXP);
4240 p->variant = PCI_VARIANT_PCIE;
4241 p->pcie_cap_addr = pcie_cap;
4242 t3_os_pci_read_config_2(adapter, pcie_cap + PCI_EXP_LNKSTA,
4244 p->width = (val >> 4) & 0x3f;
4248 pci_mode = t3_read_reg(adapter, A_PCIX_MODE);
4249 p->speed = speed_map[G_PCLKRANGE(pci_mode)];
4250 p->width = (pci_mode & F_64BIT) ? 64 : 32;
4251 pci_mode = G_PCIXINITPAT(pci_mode);
4253 p->variant = PCI_VARIANT_PCI;
4254 else if (pci_mode < 4)
4255 p->variant = PCI_VARIANT_PCIX_MODE1_PARITY;
4256 else if (pci_mode < 8)
4257 p->variant = PCI_VARIANT_PCIX_MODE1_ECC;
4259 p->variant = PCI_VARIANT_PCIX_266_MODE2;
4263 * init_link_config - initialize a link's SW state
4264 * @lc: structure holding the link state
4265 * @caps: link capabilities
4267 * Initializes the SW state maintained for each link, including the link's
4268 * capabilities and default speed/duplex/flow-control/autonegotiation
4271 static void __devinit init_link_config(struct link_config *lc,
4274 lc->supported = caps;
4275 lc->requested_speed = lc->speed = SPEED_INVALID;
4276 lc->requested_duplex = lc->duplex = DUPLEX_INVALID;
4277 lc->requested_fc = lc->fc = PAUSE_RX | PAUSE_TX;
4278 if (lc->supported & SUPPORTED_Autoneg) {
4279 lc->advertising = lc->supported;
4280 lc->autoneg = AUTONEG_ENABLE;
4281 lc->requested_fc |= PAUSE_AUTONEG;
4283 lc->advertising = 0;
4284 lc->autoneg = AUTONEG_DISABLE;
4289 * mc7_calc_size - calculate MC7 memory size
4290 * @cfg: the MC7 configuration
4292 * Calculates the size of an MC7 memory in bytes from the value of its
4293 * configuration register.
4295 static unsigned int __devinit mc7_calc_size(u32 cfg)
4297 unsigned int width = G_WIDTH(cfg);
4298 unsigned int banks = !!(cfg & F_BKS) + 1;
4299 unsigned int org = !!(cfg & F_ORG) + 1;
4300 unsigned int density = G_DEN(cfg);
4301 unsigned int MBs = ((256 << density) * banks) / (org << width);
4306 static void __devinit mc7_prep(adapter_t *adapter, struct mc7 *mc7,
4307 unsigned int base_addr, const char *name)
4311 mc7->adapter = adapter;
4313 mc7->offset = base_addr - MC7_PMRX_BASE_ADDR;
4314 cfg = t3_read_reg(adapter, mc7->offset + A_MC7_CFG);
4315 mc7->size = G_DEN(cfg) == M_DEN ? 0 : mc7_calc_size(cfg);
4316 mc7->width = G_WIDTH(cfg);
4319 void mac_prep(struct cmac *mac, adapter_t *adapter, int index)
4323 mac->adapter = adapter;
4324 mac->multiport = adapter->params.nports > 2;
4325 if (mac->multiport) {
4326 mac->ext_port = (unsigned char)index;
4331 /* Gen2 adapter uses VPD xauicfg[] to notify driver which MAC
4332 is connected to each port, its suppose to be using xgmac0 for both ports
4334 t3_os_pci_read_config_2(adapter, 0x2, &devid);
4336 if (mac->multiport ||
4337 (!adapter->params.vpd.xauicfg[1] && (devid==0x37)))
4340 mac->offset = (XGMAC0_1_BASE_ADDR - XGMAC0_0_BASE_ADDR) * index;
4342 if (adapter->params.rev == 0 && uses_xaui(adapter)) {
4343 t3_write_reg(adapter, A_XGM_SERDES_CTRL + mac->offset,
4344 is_10G(adapter) ? 0x2901c04 : 0x2301c04);
4345 t3_set_reg_field(adapter, A_XGM_PORT_CFG + mac->offset,
4351 * early_hw_init - HW initialization done at card detection time
4352 * @adapter: the adapter
4353 * @ai: contains information about the adapter type and properties
4355 * Perfoms the part of HW initialization that is done early on when the
4356 * driver first detecs the card. Most of the HW state is initialized
4357 * lazily later on when a port or an offload function are first used.
4359 void early_hw_init(adapter_t *adapter, const struct adapter_info *ai)
4361 u32 val = V_PORTSPEED(is_10G(adapter) || adapter->params.nports > 2 ?
4363 u32 gpio_out = ai->gpio_out;
4365 mi1_init(adapter, ai);
4366 t3_write_reg(adapter, A_I2C_CFG, /* set for 80KHz */
4367 V_I2C_CLKDIV(adapter->params.vpd.cclk / 80 - 1));
4368 t3_write_reg(adapter, A_T3DBG_GPIO_EN,
4369 gpio_out | F_GPIO0_OEN | F_GPIO0_OUT_VAL);
4370 t3_write_reg(adapter, A_MC5_DB_SERVER_INDEX, 0);
4371 t3_write_reg(adapter, A_SG_OCO_BASE, V_BASE1(0xfff));
4373 if (adapter->params.rev == 0 || !uses_xaui(adapter))
4376 /* Enable MAC clocks so we can access the registers */
4377 t3_write_reg(adapter, A_XGM_PORT_CFG, val);
4378 (void) t3_read_reg(adapter, A_XGM_PORT_CFG);
4380 val |= F_CLKDIVRESET_;
4381 t3_write_reg(adapter, A_XGM_PORT_CFG, val);
4382 (void) t3_read_reg(adapter, A_XGM_PORT_CFG);
4383 t3_write_reg(adapter, XGM_REG(A_XGM_PORT_CFG, 1), val);
4384 (void) t3_read_reg(adapter, A_XGM_PORT_CFG);
4388 * t3_reset_adapter - reset the adapter
4389 * @adapter: the adapter
4391 * Reset the adapter.
4393 int t3_reset_adapter(adapter_t *adapter)
4395 int i, save_and_restore_pcie =
4396 adapter->params.rev < T3_REV_B2 && is_pcie(adapter);
4399 if (save_and_restore_pcie)
4400 t3_os_pci_save_state(adapter);
4401 t3_write_reg(adapter, A_PL_RST, F_CRSTWRM | F_CRSTWRMMODE);
4404 * Delay. Give Some time to device to reset fully.
4405 * XXX The delay time should be modified.
4407 for (i = 0; i < 10; i++) {
4409 t3_os_pci_read_config_2(adapter, 0x00, &devid);
4410 if (devid == 0x1425)
4414 if (devid != 0x1425)
4417 if (save_and_restore_pcie)
4418 t3_os_pci_restore_state(adapter);
4422 static int init_parity(adapter_t *adap)
4426 if (t3_read_reg(adap, A_SG_CONTEXT_CMD) & F_CONTEXT_CMD_BUSY)
4429 for (err = i = 0; !err && i < 16; i++)
4430 err = clear_sge_ctxt(adap, i, F_EGRESS);
4431 for (i = 0xfff0; !err && i <= 0xffff; i++)
4432 err = clear_sge_ctxt(adap, i, F_EGRESS);
4433 for (i = 0; !err && i < SGE_QSETS; i++)
4434 err = clear_sge_ctxt(adap, i, F_RESPONSEQ);
4438 t3_write_reg(adap, A_CIM_IBQ_DBG_DATA, 0);
4439 for (i = 0; i < 4; i++)
4440 for (addr = 0; addr <= M_IBQDBGADDR; addr++) {
4441 t3_write_reg(adap, A_CIM_IBQ_DBG_CFG, F_IBQDBGEN |
4442 F_IBQDBGWR | V_IBQDBGQID(i) |
4443 V_IBQDBGADDR(addr));
4444 err = t3_wait_op_done(adap, A_CIM_IBQ_DBG_CFG,
4445 F_IBQDBGBUSY, 0, 2, 1);
4453 * t3_prep_adapter - prepare SW and HW for operation
4454 * @adapter: the adapter
4455 * @ai: contains information about the adapter type and properties
4457 * Initialize adapter SW state for the various HW modules, set initial
4458 * values for some adapter tunables, take PHYs out of reset, and
4459 * initialize the MDIO interface.
4461 int __devinit t3_prep_adapter(adapter_t *adapter,
4462 const struct adapter_info *ai, int reset)
4465 unsigned int i, j = 0;
4467 get_pci_mode(adapter, &adapter->params.pci);
4469 adapter->params.info = ai;
4470 adapter->params.nports = ai->nports0 + ai->nports1;
4471 adapter->params.chan_map = (!!ai->nports0) | (!!ai->nports1 << 1);
4472 adapter->params.rev = t3_read_reg(adapter, A_PL_REV);
4475 * We used to only run the "adapter check task" once a second if
4476 * we had PHYs which didn't support interrupts (we would check
4477 * their link status once a second). Now we check other conditions
4478 * in that routine which would [potentially] impose a very high
4479 * interrupt load on the system. As such, we now always scan the
4480 * adapter state once a second ...
4482 adapter->params.linkpoll_period = 10;
4484 if (adapter->params.nports > 2)
4485 adapter->params.stats_update_period = VSC_STATS_ACCUM_SECS;
4487 adapter->params.stats_update_period = is_10G(adapter) ?
4488 MAC_STATS_ACCUM_SECS : (MAC_STATS_ACCUM_SECS * 10);
4489 adapter->params.pci.vpd_cap_addr =
4490 t3_os_find_pci_capability(adapter, PCI_CAP_ID_VPD);
4492 ret = get_vpd_params(adapter, &adapter->params.vpd);
4496 if (reset && t3_reset_adapter(adapter))
4499 if (adapter->params.vpd.mclk) {
4500 struct tp_params *p = &adapter->params.tp;
4502 mc7_prep(adapter, &adapter->pmrx, MC7_PMRX_BASE_ADDR, "PMRX");
4503 mc7_prep(adapter, &adapter->pmtx, MC7_PMTX_BASE_ADDR, "PMTX");
4504 mc7_prep(adapter, &adapter->cm, MC7_CM_BASE_ADDR, "CM");
4506 p->nchan = adapter->params.chan_map == 3 ? 2 : 1;
4507 p->pmrx_size = t3_mc7_size(&adapter->pmrx);
4508 p->pmtx_size = t3_mc7_size(&adapter->pmtx);
4509 p->cm_size = t3_mc7_size(&adapter->cm);
4510 p->chan_rx_size = p->pmrx_size / 2; /* only 1 Rx channel */
4511 p->chan_tx_size = p->pmtx_size / p->nchan;
4512 p->rx_pg_size = 64 * 1024;
4513 p->tx_pg_size = is_10G(adapter) ? 64 * 1024 : 16 * 1024;
4514 p->rx_num_pgs = pm_num_pages(p->chan_rx_size, p->rx_pg_size);
4515 p->tx_num_pgs = pm_num_pages(p->chan_tx_size, p->tx_pg_size);
4516 p->ntimer_qs = p->cm_size >= (128 << 20) ||
4517 adapter->params.rev > 0 ? 12 : 6;
4518 p->tre = fls(adapter->params.vpd.cclk / (1000 / TP_TMR_RES)) -
4520 p->dack_re = fls(adapter->params.vpd.cclk / 10) - 1; /* 100us */
4523 adapter->params.offload = t3_mc7_size(&adapter->pmrx) &&
4524 t3_mc7_size(&adapter->pmtx) &&
4525 t3_mc7_size(&adapter->cm);
4527 t3_sge_prep(adapter, &adapter->params.sge);
4529 if (is_offload(adapter)) {
4530 adapter->params.mc5.nservers = DEFAULT_NSERVERS;
4531 /* PR 6487. TOE and filtering are mutually exclusive */
4532 adapter->params.mc5.nfilters = 0;
4533 adapter->params.mc5.nroutes = 0;
4534 t3_mc5_prep(adapter, &adapter->mc5, MC5_MODE_144_BIT);
4536 init_mtus(adapter->params.mtus);
4537 init_cong_ctrl(adapter->params.a_wnd, adapter->params.b_wnd);
4540 early_hw_init(adapter, ai);
4541 ret = init_parity(adapter);
4545 if (adapter->params.nports > 2 &&
4546 (ret = t3_vsc7323_init(adapter, adapter->params.nports)))
4549 for_each_port(adapter, i) {
4551 const struct port_type_info *pti;
4552 struct port_info *p = adap2pinfo(adapter, i);
4555 unsigned port_type = adapter->params.vpd.port_type[j];
4557 if (port_type < ARRAY_SIZE(port_types)) {
4558 pti = &port_types[port_type];
4564 if (j >= ARRAY_SIZE(adapter->params.vpd.port_type))
4567 ret = pti->phy_prep(p, ai->phy_base_addr + j,
4571 mac_prep(&p->mac, adapter, j);
4575 * The VPD EEPROM stores the base Ethernet address for the
4576 * card. A port's address is derived from the base by adding
4577 * the port's index to the base's low octet.
4579 memcpy(hw_addr, adapter->params.vpd.eth_base, 5);
4580 hw_addr[5] = adapter->params.vpd.eth_base[5] + i;
4582 t3_os_set_hw_addr(adapter, i, hw_addr);
4583 init_link_config(&p->link_config, p->phy.caps);
4584 p->phy.ops->power_down(&p->phy, 1);
4587 * If the PHY doesn't support interrupts for link status
4588 * changes, schedule a scan of the adapter links at least
4591 if (!(p->phy.caps & SUPPORTED_IRQ) &&
4592 adapter->params.linkpoll_period > 10)
4593 adapter->params.linkpoll_period = 10;
4600 * t3_reinit_adapter - prepare HW for operation again
4601 * @adapter: the adapter
4603 * Put HW in the same state as @t3_prep_adapter without any changes to
4604 * SW state. This is a cut down version of @t3_prep_adapter intended
4605 * to be used after events that wipe out HW state but preserve SW state,
4606 * e.g., EEH. The device must be reset before calling this.
4608 int t3_reinit_adapter(adapter_t *adap)
4613 early_hw_init(adap, adap->params.info);
4614 ret = init_parity(adap);
4618 if (adap->params.nports > 2 &&
4619 (ret = t3_vsc7323_init(adap, adap->params.nports)))
4622 for_each_port(adap, i) {
4623 const struct port_type_info *pti;
4624 struct port_info *p = adap2pinfo(adap, i);
4627 unsigned port_type = adap->params.vpd.port_type[j];
4629 if (port_type < ARRAY_SIZE(port_types)) {
4630 pti = &port_types[port_type];
4636 if (j >= ARRAY_SIZE(adap->params.vpd.port_type))
4639 ret = pti->phy_prep(p, p->phy.addr, NULL);
4642 p->phy.ops->power_down(&p->phy, 1);
4647 void t3_led_ready(adapter_t *adapter)
4649 t3_set_reg_field(adapter, A_T3DBG_GPIO_EN, F_GPIO0_OUT_VAL,
4653 void t3_port_failover(adapter_t *adapter, int port)
4657 val = port ? F_PORT1ACTIVE : F_PORT0ACTIVE;
4658 t3_set_reg_field(adapter, A_MPS_CFG, F_PORT0ACTIVE | F_PORT1ACTIVE,
4662 void t3_failover_done(adapter_t *adapter, int port)
4664 t3_set_reg_field(adapter, A_MPS_CFG, F_PORT0ACTIVE | F_PORT1ACTIVE,
4665 F_PORT0ACTIVE | F_PORT1ACTIVE);
4668 void t3_failover_clear(adapter_t *adapter)
4670 t3_set_reg_field(adapter, A_MPS_CFG, F_PORT0ACTIVE | F_PORT1ACTIVE,
4671 F_PORT0ACTIVE | F_PORT1ACTIVE);
4674 static int t3_cim_hac_read(adapter_t *adapter, u32 addr, u32 *val)
4678 t3_write_reg(adapter, A_CIM_HOST_ACC_CTRL, addr);
4679 if (t3_wait_op_done_val(adapter, A_CIM_HOST_ACC_CTRL,
4680 F_HOSTBUSY, 0, 10, 10, &v))
4683 *val = t3_read_reg(adapter, A_CIM_HOST_ACC_DATA);
4688 static int t3_cim_hac_write(adapter_t *adapter, u32 addr, u32 val)
4692 t3_write_reg(adapter, A_CIM_HOST_ACC_DATA, val);
4694 addr |= F_HOSTWRITE;
4695 t3_write_reg(adapter, A_CIM_HOST_ACC_CTRL, addr);
4697 if (t3_wait_op_done_val(adapter, A_CIM_HOST_ACC_CTRL,
4698 F_HOSTBUSY, 0, 10, 5, &v))
4703 int t3_get_up_la(adapter_t *adapter, u32 *stopped, u32 *index,
4704 u32 *size, void *data)
4709 if (*size < LA_ENTRIES * 4)
4712 ret = t3_cim_hac_read(adapter, LA_CTRL, &v);
4716 *stopped = !(v & 1);
4720 ret = t3_cim_hac_write(adapter, LA_CTRL, 0);
4725 for (i = 0; i < LA_ENTRIES; i++) {
4726 v = (i << 2) | (1 << 1);
4727 ret = t3_cim_hac_write(adapter, LA_CTRL, v);
4731 ret = t3_cim_hac_read(adapter, LA_CTRL, &v);
4736 while ((v & (1 << 1)) && cnt) {
4739 ret = t3_cim_hac_read(adapter, LA_CTRL, &v);
4747 ret = t3_cim_hac_read(adapter, LA_DATA, &v);
4754 ret = t3_cim_hac_read(adapter, LA_CTRL, &v);
4758 *index = (v >> 16) + 4;
4759 *size = LA_ENTRIES * 4;
4762 t3_cim_hac_write(adapter, LA_CTRL, 1);
4766 int t3_get_up_ioqs(adapter_t *adapter, u32 *size, void *data)
4771 if (*size < IOQ_ENTRIES * sizeof(struct t3_ioq_entry))
4774 for (i = 0; i < 4; i++) {
4775 ret = t3_cim_hac_read(adapter, (4 * i), &v);
4782 for (i = 0; i < IOQ_ENTRIES; i++) {
4783 u32 base_addr = 0x10 * (i + 1);
4785 for (j = 0; j < 4; j++) {
4786 ret = t3_cim_hac_read(adapter, base_addr + 4 * j, &v);
4794 *size = IOQ_ENTRIES * sizeof(struct t3_ioq_entry);