2 mvsas.c - Marvell 88SE6440 SAS/SATA support
4 Copyright 2007 Red Hat, Inc.
5 Copyright 2008 Marvell. <kewei@marvell.com>
7 This program is free software; you can redistribute it and/or
8 modify it under the terms of the GNU General Public License as
9 published by the Free Software Foundation; either version 2,
10 or (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty
14 of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
15 See the GNU General Public License for more details.
17 You should have received a copy of the GNU General Public
18 License along with this program; see the file COPYING. If not,
19 write to the Free Software Foundation, 675 Mass Ave, Cambridge,
22 ---------------------------------------------------------------
25 * hardware supports controlling the endian-ness of data
26 structures. this permits elimination of all the le32_to_cpu()
27 and cpu_to_le32() conversions.
31 #include <linux/kernel.h>
32 #include <linux/module.h>
33 #include <linux/pci.h>
34 #include <linux/interrupt.h>
35 #include <linux/spinlock.h>
36 #include <linux/delay.h>
37 #include <linux/dma-mapping.h>
38 #include <scsi/libsas.h>
41 #define DRV_NAME "mvsas"
42 #define DRV_VERSION "0.5"
44 #define MVS_DISABLE_NVRAM
45 #define MVS_DISABLE_MSI
47 #define mr32(reg) readl(regs + MVS_##reg)
48 #define mw32(reg,val) writel((val), regs + MVS_##reg)
49 #define mw32_f(reg,val) do { \
50 writel((val), regs + MVS_##reg); \
51 readl(regs + MVS_##reg); \
54 #define MVS_ID_NOT_MAPPED 0xff
55 #define MVS_CHIP_SLOT_SZ (1U << mvi->chip->slot_width)
57 /* offset for D2H FIS in the Received FIS List Structure */
58 #define SATA_RECEIVED_D2H_FIS(reg_set) \
59 ((void *) mvi->rx_fis + 0x400 + 0x100 * reg_set + 0x40)
60 #define SATA_RECEIVED_PIO_FIS(reg_set) \
61 ((void *) mvi->rx_fis + 0x400 + 0x100 * reg_set + 0x20)
62 #define UNASSOC_D2H_FIS(id) \
63 ((void *) mvi->rx_fis + 0x100 * id)
65 #define for_each_phy(__lseq_mask, __mc, __lseq, __rest) \
66 for ((__mc) = (__lseq_mask), (__lseq) = 0; \
67 (__mc) != 0 && __rest; \
68 (++__lseq), (__mc) >>= 1)
70 /* driver compile-time configuration */
71 enum driver_configuration {
72 MVS_TX_RING_SZ = 1024, /* TX ring size (12-bit) */
73 MVS_RX_RING_SZ = 1024, /* RX ring size (12-bit) */
74 /* software requires power-of-2
77 MVS_SLOTS = 512, /* command slots */
78 MVS_SLOT_BUF_SZ = 8192, /* cmd tbl + IU + status + PRD */
79 MVS_SSP_CMD_SZ = 64, /* SSP command table buffer size */
80 MVS_ATA_CMD_SZ = 96, /* SATA command table buffer size */
81 MVS_OAF_SZ = 64, /* Open address frame buffer size */
83 MVS_RX_FIS_COUNT = 17, /* Optional rx'd FISs (max 17) */
85 MVS_QUEUE_SIZE = 30, /* Support Queue depth */
88 /* unchangeable hardware details */
89 enum hardware_details {
90 MVS_MAX_PHYS = 8, /* max. possible phys */
91 MVS_MAX_PORTS = 8, /* max. possible ports */
92 MVS_RX_FISL_SZ = 0x400 + (MVS_RX_FIS_COUNT * 0x100),
95 /* peripheral registers (BAR2) */
96 enum peripheral_registers {
97 SPI_CTL = 0x10, /* EEPROM control */
98 SPI_CMD = 0x14, /* EEPROM command */
99 SPI_DATA = 0x18, /* EEPROM data */
102 enum peripheral_register_bits {
103 TWSI_RDY = (1U << 7), /* EEPROM interface ready */
104 TWSI_RD = (1U << 4), /* EEPROM read access */
106 SPI_ADDR_MASK = 0x3ffff, /* bits 17:0 */
109 /* enhanced mode registers (BAR4) */
111 MVS_GBL_CTL = 0x04, /* global control */
112 MVS_GBL_INT_STAT = 0x08, /* global irq status */
113 MVS_GBL_PI = 0x0C, /* ports implemented bitmask */
114 MVS_GBL_PORT_TYPE = 0xa0, /* port type */
116 MVS_CTL = 0x100, /* SAS/SATA port configuration */
117 MVS_PCS = 0x104, /* SAS/SATA port control/status */
118 MVS_CMD_LIST_LO = 0x108, /* cmd list addr */
119 MVS_CMD_LIST_HI = 0x10C,
120 MVS_RX_FIS_LO = 0x110, /* RX FIS list addr */
121 MVS_RX_FIS_HI = 0x114,
123 MVS_TX_CFG = 0x120, /* TX configuration */
124 MVS_TX_LO = 0x124, /* TX (delivery) ring addr */
127 MVS_TX_PROD_IDX = 0x12C, /* TX producer pointer */
128 MVS_TX_CONS_IDX = 0x130, /* TX consumer pointer (RO) */
129 MVS_RX_CFG = 0x134, /* RX configuration */
130 MVS_RX_LO = 0x138, /* RX (completion) ring addr */
132 MVS_RX_CONS_IDX = 0x140, /* RX consumer pointer (RO) */
134 MVS_INT_COAL = 0x148, /* Int coalescing config */
135 MVS_INT_COAL_TMOUT = 0x14C, /* Int coalescing timeout */
136 MVS_INT_STAT = 0x150, /* Central int status */
137 MVS_INT_MASK = 0x154, /* Central int enable */
138 MVS_INT_STAT_SRS = 0x158, /* SATA register set status */
139 MVS_INT_MASK_SRS = 0x15C,
141 /* ports 1-3 follow after this */
142 MVS_P0_INT_STAT = 0x160, /* port0 interrupt status */
143 MVS_P0_INT_MASK = 0x164, /* port0 interrupt mask */
144 MVS_P4_INT_STAT = 0x200, /* Port 4 interrupt status */
145 MVS_P4_INT_MASK = 0x204, /* Port 4 interrupt enable mask */
147 /* ports 1-3 follow after this */
148 MVS_P0_SER_CTLSTAT = 0x180, /* port0 serial control/status */
149 MVS_P4_SER_CTLSTAT = 0x220, /* port4 serial control/status */
151 MVS_CMD_ADDR = 0x1B8, /* Command register port (addr) */
152 MVS_CMD_DATA = 0x1BC, /* Command register port (data) */
154 /* ports 1-3 follow after this */
155 MVS_P0_CFG_ADDR = 0x1C0, /* port0 phy register address */
156 MVS_P0_CFG_DATA = 0x1C4, /* port0 phy register data */
157 MVS_P4_CFG_ADDR = 0x230, /* Port 4 config address */
158 MVS_P4_CFG_DATA = 0x234, /* Port 4 config data */
160 /* ports 1-3 follow after this */
161 MVS_P0_VSR_ADDR = 0x1E0, /* port0 VSR address */
162 MVS_P0_VSR_DATA = 0x1E4, /* port0 VSR data */
163 MVS_P4_VSR_ADDR = 0x250, /* port 4 VSR addr */
164 MVS_P4_VSR_DATA = 0x254, /* port 4 VSR data */
167 enum hw_register_bits {
169 INT_EN = (1U << 1), /* Global int enable */
170 HBA_RST = (1U << 0), /* HBA reset */
172 /* MVS_GBL_INT_STAT */
173 INT_XOR = (1U << 4), /* XOR engine event */
174 INT_SAS_SATA = (1U << 0), /* SAS/SATA event */
176 /* MVS_GBL_PORT_TYPE */ /* shl for ports 1-3 */
177 SATA_TARGET = (1U << 16), /* port0 SATA target enable */
178 MODE_AUTO_DET_PORT7 = (1U << 15), /* port0 SAS/SATA autodetect */
179 MODE_AUTO_DET_PORT6 = (1U << 14),
180 MODE_AUTO_DET_PORT5 = (1U << 13),
181 MODE_AUTO_DET_PORT4 = (1U << 12),
182 MODE_AUTO_DET_PORT3 = (1U << 11),
183 MODE_AUTO_DET_PORT2 = (1U << 10),
184 MODE_AUTO_DET_PORT1 = (1U << 9),
185 MODE_AUTO_DET_PORT0 = (1U << 8),
186 MODE_AUTO_DET_EN = MODE_AUTO_DET_PORT0 | MODE_AUTO_DET_PORT1 |
187 MODE_AUTO_DET_PORT2 | MODE_AUTO_DET_PORT3 |
188 MODE_AUTO_DET_PORT4 | MODE_AUTO_DET_PORT5 |
189 MODE_AUTO_DET_PORT6 | MODE_AUTO_DET_PORT7,
190 MODE_SAS_PORT7_MASK = (1U << 7), /* port0 SAS(1), SATA(0) mode */
191 MODE_SAS_PORT6_MASK = (1U << 6),
192 MODE_SAS_PORT5_MASK = (1U << 5),
193 MODE_SAS_PORT4_MASK = (1U << 4),
194 MODE_SAS_PORT3_MASK = (1U << 3),
195 MODE_SAS_PORT2_MASK = (1U << 2),
196 MODE_SAS_PORT1_MASK = (1U << 1),
197 MODE_SAS_PORT0_MASK = (1U << 0),
198 MODE_SAS_SATA = MODE_SAS_PORT0_MASK | MODE_SAS_PORT1_MASK |
199 MODE_SAS_PORT2_MASK | MODE_SAS_PORT3_MASK |
200 MODE_SAS_PORT4_MASK | MODE_SAS_PORT5_MASK |
201 MODE_SAS_PORT6_MASK | MODE_SAS_PORT7_MASK,
203 /* SAS_MODE value may be
204 * dictated (in hw) by values
205 * of SATA_TARGET & AUTO_DET
209 TX_EN = (1U << 16), /* Enable TX */
210 TX_RING_SZ_MASK = 0xfff, /* TX ring size, bits 11:0 */
213 RX_EN = (1U << 16), /* Enable RX */
214 RX_RING_SZ_MASK = 0xfff, /* RX ring size, bits 11:0 */
217 COAL_EN = (1U << 16), /* Enable int coalescing */
219 /* MVS_INT_STAT, MVS_INT_MASK */
220 CINT_I2C = (1U << 31), /* I2C event */
221 CINT_SW0 = (1U << 30), /* software event 0 */
222 CINT_SW1 = (1U << 29), /* software event 1 */
223 CINT_PRD_BC = (1U << 28), /* PRD BC err for read cmd */
224 CINT_DMA_PCIE = (1U << 27), /* DMA to PCIE timeout */
225 CINT_MEM = (1U << 26), /* int mem parity err */
226 CINT_I2C_SLAVE = (1U << 25), /* slave I2C event */
227 CINT_SRS = (1U << 3), /* SRS event */
228 CINT_CI_STOP = (1U << 1), /* cmd issue stopped */
229 CINT_DONE = (1U << 0), /* cmd completion */
231 /* shl for ports 1-3 */
232 CINT_PORT_STOPPED = (1U << 16), /* port0 stopped */
233 CINT_PORT = (1U << 8), /* port0 event */
234 CINT_PORT_MASK_OFFSET = 8,
235 CINT_PORT_MASK = (0xFF << CINT_PORT_MASK_OFFSET),
237 /* TX (delivery) ring bits */
239 TXQ_CMD_SSP = 1, /* SSP protocol */
240 TXQ_CMD_SMP = 2, /* SMP protocol */
241 TXQ_CMD_STP = 3, /* STP/SATA protocol */
242 TXQ_CMD_SSP_FREE_LIST = 4, /* add to SSP targ free list */
243 TXQ_CMD_SLOT_RESET = 7, /* reset command slot */
244 TXQ_MODE_I = (1U << 28), /* mode: 0=target,1=initiator */
245 TXQ_PRIO_HI = (1U << 27), /* priority: 0=normal, 1=high */
246 TXQ_SRS_SHIFT = 20, /* SATA register set */
248 TXQ_PHY_SHIFT = 12, /* PHY bitmap */
250 TXQ_SLOT_MASK = 0xfff, /* slot number */
252 /* RX (completion) ring bits */
253 RXQ_GOOD = (1U << 23), /* Response good */
254 RXQ_SLOT_RESET = (1U << 21), /* Slot reset complete */
255 RXQ_CMD_RX = (1U << 20), /* target cmd received */
256 RXQ_ATTN = (1U << 19), /* attention */
257 RXQ_RSP = (1U << 18), /* response frame xfer'd */
258 RXQ_ERR = (1U << 17), /* err info rec xfer'd */
259 RXQ_DONE = (1U << 16), /* cmd complete */
260 RXQ_SLOT_MASK = 0xfff, /* slot number */
262 /* mvs_cmd_hdr bits */
263 MCH_PRD_LEN_SHIFT = 16, /* 16-bit PRD table len */
264 MCH_SSP_FR_TYPE_SHIFT = 13, /* SSP frame type */
266 /* SSP initiator only */
267 MCH_SSP_FR_CMD = 0x0, /* COMMAND frame */
269 /* SSP initiator or target */
270 MCH_SSP_FR_TASK = 0x1, /* TASK frame */
272 /* SSP target only */
273 MCH_SSP_FR_XFER_RDY = 0x4, /* XFER_RDY frame */
274 MCH_SSP_FR_RESP = 0x5, /* RESPONSE frame */
275 MCH_SSP_FR_READ = 0x6, /* Read DATA frame(s) */
276 MCH_SSP_FR_READ_RESP = 0x7, /* ditto, plus RESPONSE */
278 MCH_PASSTHRU = (1U << 12), /* pass-through (SSP) */
279 MCH_FBURST = (1U << 11), /* first burst (SSP) */
280 MCH_CHK_LEN = (1U << 10), /* chk xfer len (SSP) */
281 MCH_RETRY = (1U << 9), /* tport layer retry (SSP) */
282 MCH_PROTECTION = (1U << 8), /* protection info rec (SSP) */
283 MCH_RESET = (1U << 7), /* Reset (STP/SATA) */
284 MCH_FPDMA = (1U << 6), /* First party DMA (STP/SATA) */
285 MCH_ATAPI = (1U << 5), /* ATAPI (STP/SATA) */
286 MCH_BIST = (1U << 4), /* BIST activate (STP/SATA) */
287 MCH_PMP_MASK = 0xf, /* PMP from cmd FIS (STP/SATA)*/
289 CCTL_RST = (1U << 5), /* port logic reset */
291 /* 0(LSB first), 1(MSB first) */
292 CCTL_ENDIAN_DATA = (1U << 3), /* PRD data */
293 CCTL_ENDIAN_RSP = (1U << 2), /* response frame */
294 CCTL_ENDIAN_OPEN = (1U << 1), /* open address frame */
295 CCTL_ENDIAN_CMD = (1U << 0), /* command table */
297 /* MVS_Px_SER_CTLSTAT (per-phy control) */
298 PHY_SSP_RST = (1U << 3), /* reset SSP link layer */
299 PHY_BCAST_CHG = (1U << 2), /* broadcast(change) notif */
300 PHY_RST_HARD = (1U << 1), /* hard reset + phy reset */
301 PHY_RST = (1U << 0), /* phy reset */
302 PHY_MIN_SPP_PHYS_LINK_RATE_MASK = (0xF << 8),
303 PHY_MAX_SPP_PHYS_LINK_RATE_MASK = (0xF << 12),
304 PHY_NEG_SPP_PHYS_LINK_RATE_MASK_OFFSET = (16),
305 PHY_NEG_SPP_PHYS_LINK_RATE_MASK =
306 (0xF << PHY_NEG_SPP_PHYS_LINK_RATE_MASK_OFFSET),
307 PHY_READY_MASK = (1U << 20),
309 /* MVS_Px_INT_STAT, MVS_Px_INT_MASK (per-phy events) */
310 PHYEV_DEC_ERR = (1U << 24), /* Phy Decoding Error */
311 PHYEV_UNASSOC_FIS = (1U << 19), /* unassociated FIS rx'd */
312 PHYEV_AN = (1U << 18), /* SATA async notification */
313 PHYEV_BIST_ACT = (1U << 17), /* BIST activate FIS */
314 PHYEV_SIG_FIS = (1U << 16), /* signature FIS */
315 PHYEV_POOF = (1U << 12), /* phy ready from 1 -> 0 */
316 PHYEV_IU_BIG = (1U << 11), /* IU too long err */
317 PHYEV_IU_SMALL = (1U << 10), /* IU too short err */
318 PHYEV_UNK_TAG = (1U << 9), /* unknown tag */
319 PHYEV_BROAD_CH = (1U << 8), /* broadcast(CHANGE) */
320 PHYEV_COMWAKE = (1U << 7), /* COMWAKE rx'd */
321 PHYEV_PORT_SEL = (1U << 6), /* port selector present */
322 PHYEV_HARD_RST = (1U << 5), /* hard reset rx'd */
323 PHYEV_ID_TMOUT = (1U << 4), /* identify timeout */
324 PHYEV_ID_FAIL = (1U << 3), /* identify failed */
325 PHYEV_ID_DONE = (1U << 2), /* identify done */
326 PHYEV_HARD_RST_DONE = (1U << 1), /* hard reset done */
327 PHYEV_RDY_CH = (1U << 0), /* phy ready changed state */
330 PCS_EN_SATA_REG_SHIFT = (16), /* Enable SATA Register Set */
331 PCS_EN_PORT_XMT_SHIFT = (12), /* Enable Port Transmit */
332 PCS_EN_PORT_XMT_SHIFT2 = (8), /* For 6480 */
333 PCS_SATA_RETRY = (1U << 8), /* retry ctl FIS on R_ERR */
334 PCS_RSP_RX_EN = (1U << 7), /* raw response rx */
335 PCS_SELF_CLEAR = (1U << 5), /* self-clearing int mode */
336 PCS_FIS_RX_EN = (1U << 4), /* FIS rx enable */
337 PCS_CMD_STOP_ERR = (1U << 3), /* cmd stop-on-err enable */
338 PCS_CMD_RST = (1U << 1), /* reset cmd issue */
339 PCS_CMD_EN = (1U << 0), /* enable cmd issue */
341 /* Port n Attached Device Info */
342 PORT_DEV_SSP_TRGT = (1U << 19),
343 PORT_DEV_SMP_TRGT = (1U << 18),
344 PORT_DEV_STP_TRGT = (1U << 17),
345 PORT_DEV_SSP_INIT = (1U << 11),
346 PORT_DEV_SMP_INIT = (1U << 10),
347 PORT_DEV_STP_INIT = (1U << 9),
348 PORT_PHY_ID_MASK = (0xFFU << 24),
349 PORT_DEV_TRGT_MASK = (0x7U << 17),
350 PORT_DEV_INIT_MASK = (0x7U << 9),
351 PORT_DEV_TYPE_MASK = (0x7U << 0),
353 /* Port n PHY Status */
355 PHY_DW_SYNC = (1U << 1),
356 PHY_OOB_DTCTD = (1U << 0),
359 /* PHYMODE 6 (CDB) */
360 PHY_MODE6_DTL_SPEED = (1U << 27),
363 enum mvs_info_flags {
364 MVF_MSI = (1U << 0), /* MSI is enabled */
365 MVF_PHY_PWR_FIX = (1U << 1), /* bug workaround */
368 enum sas_cmd_port_registers {
369 CMD_CMRST_OOB_DET = 0x100, /* COMRESET OOB detect register */
370 CMD_CMWK_OOB_DET = 0x104, /* COMWAKE OOB detect register */
371 CMD_CMSAS_OOB_DET = 0x108, /* COMSAS OOB detect register */
372 CMD_BRST_OOB_DET = 0x10c, /* burst OOB detect register */
373 CMD_OOB_SPACE = 0x110, /* OOB space control register */
374 CMD_OOB_BURST = 0x114, /* OOB burst control register */
375 CMD_PHY_TIMER = 0x118, /* PHY timer control register */
376 CMD_PHY_CONFIG0 = 0x11c, /* PHY config register 0 */
377 CMD_PHY_CONFIG1 = 0x120, /* PHY config register 1 */
378 CMD_SAS_CTL0 = 0x124, /* SAS control register 0 */
379 CMD_SAS_CTL1 = 0x128, /* SAS control register 1 */
380 CMD_SAS_CTL2 = 0x12c, /* SAS control register 2 */
381 CMD_SAS_CTL3 = 0x130, /* SAS control register 3 */
382 CMD_ID_TEST = 0x134, /* ID test register */
383 CMD_PL_TIMER = 0x138, /* PL timer register */
384 CMD_WD_TIMER = 0x13c, /* WD timer register */
385 CMD_PORT_SEL_COUNT = 0x140, /* port selector count register */
386 CMD_APP_MEM_CTL = 0x144, /* Application Memory Control */
387 CMD_XOR_MEM_CTL = 0x148, /* XOR Block Memory Control */
388 CMD_DMA_MEM_CTL = 0x14c, /* DMA Block Memory Control */
389 CMD_PORT_MEM_CTL0 = 0x150, /* Port Memory Control 0 */
390 CMD_PORT_MEM_CTL1 = 0x154, /* Port Memory Control 1 */
391 CMD_SATA_PORT_MEM_CTL0 = 0x158, /* SATA Port Memory Control 0 */
392 CMD_SATA_PORT_MEM_CTL1 = 0x15c, /* SATA Port Memory Control 1 */
393 CMD_XOR_MEM_BIST_CTL = 0x160, /* XOR Memory BIST Control */
394 CMD_XOR_MEM_BIST_STAT = 0x164, /* XOR Memroy BIST Status */
395 CMD_DMA_MEM_BIST_CTL = 0x168, /* DMA Memory BIST Control */
396 CMD_DMA_MEM_BIST_STAT = 0x16c, /* DMA Memory BIST Status */
397 CMD_PORT_MEM_BIST_CTL = 0x170, /* Port Memory BIST Control */
398 CMD_PORT_MEM_BIST_STAT0 = 0x174, /* Port Memory BIST Status 0 */
399 CMD_PORT_MEM_BIST_STAT1 = 0x178, /* Port Memory BIST Status 1 */
400 CMD_STP_MEM_BIST_CTL = 0x17c, /* STP Memory BIST Control */
401 CMD_STP_MEM_BIST_STAT0 = 0x180, /* STP Memory BIST Status 0 */
402 CMD_STP_MEM_BIST_STAT1 = 0x184, /* STP Memory BIST Status 1 */
403 CMD_RESET_COUNT = 0x188, /* Reset Count */
404 CMD_MONTR_DATA_SEL = 0x18C, /* Monitor Data/Select */
405 CMD_PLL_PHY_CONFIG = 0x190, /* PLL/PHY Configuration */
406 CMD_PHY_CTL = 0x194, /* PHY Control and Status */
407 CMD_PHY_TEST_COUNT0 = 0x198, /* Phy Test Count 0 */
408 CMD_PHY_TEST_COUNT1 = 0x19C, /* Phy Test Count 1 */
409 CMD_PHY_TEST_COUNT2 = 0x1A0, /* Phy Test Count 2 */
410 CMD_APP_ERR_CONFIG = 0x1A4, /* Application Error Configuration */
411 CMD_PND_FIFO_CTL0 = 0x1A8, /* Pending FIFO Control 0 */
412 CMD_HOST_CTL = 0x1AC, /* Host Control Status */
413 CMD_HOST_WR_DATA = 0x1B0, /* Host Write Data */
414 CMD_HOST_RD_DATA = 0x1B4, /* Host Read Data */
415 CMD_PHY_MODE_21 = 0x1B8, /* Phy Mode 21 */
416 CMD_SL_MODE0 = 0x1BC, /* SL Mode 0 */
417 CMD_SL_MODE1 = 0x1C0, /* SL Mode 1 */
418 CMD_PND_FIFO_CTL1 = 0x1C4, /* Pending FIFO Control 1 */
421 /* SAS/SATA configuration port registers, aka phy registers */
422 enum sas_sata_config_port_regs {
423 PHYR_IDENTIFY = 0x00, /* info for IDENTIFY frame */
424 PHYR_ADDR_LO = 0x04, /* my SAS address (low) */
425 PHYR_ADDR_HI = 0x08, /* my SAS address (high) */
426 PHYR_ATT_DEV_INFO = 0x0C, /* attached device info */
427 PHYR_ATT_ADDR_LO = 0x10, /* attached dev SAS addr (low) */
428 PHYR_ATT_ADDR_HI = 0x14, /* attached dev SAS addr (high) */
429 PHYR_SATA_CTL = 0x18, /* SATA control */
430 PHYR_PHY_STAT = 0x1C, /* PHY status */
431 PHYR_SATA_SIG0 = 0x20, /*port SATA signature FIS(Byte 0-3) */
432 PHYR_SATA_SIG1 = 0x24, /*port SATA signature FIS(Byte 4-7) */
433 PHYR_SATA_SIG2 = 0x28, /*port SATA signature FIS(Byte 8-11) */
434 PHYR_SATA_SIG3 = 0x2c, /*port SATA signature FIS(Byte 12-15) */
435 PHYR_R_ERR_COUNT = 0x30, /* port R_ERR count register */
436 PHYR_CRC_ERR_COUNT = 0x34, /* port CRC error count register */
437 PHYR_WIDE_PORT = 0x38, /* wide port participating */
438 PHYR_CURRENT0 = 0x80, /* current connection info 0 */
439 PHYR_CURRENT1 = 0x84, /* current connection info 1 */
440 PHYR_CURRENT2 = 0x88, /* current connection info 2 */
443 /* SAS/SATA Vendor Specific Port Registers */
444 enum sas_sata_vsp_regs {
445 VSR_PHY_STAT = 0x00, /* Phy Status */
446 VSR_PHY_MODE1 = 0x01, /* phy tx */
447 VSR_PHY_MODE2 = 0x02, /* tx scc */
448 VSR_PHY_MODE3 = 0x03, /* pll */
449 VSR_PHY_MODE4 = 0x04, /* VCO */
450 VSR_PHY_MODE5 = 0x05, /* Rx */
451 VSR_PHY_MODE6 = 0x06, /* CDR */
452 VSR_PHY_MODE7 = 0x07, /* Impedance */
453 VSR_PHY_MODE8 = 0x08, /* Voltage */
454 VSR_PHY_MODE9 = 0x09, /* Test */
455 VSR_PHY_MODE10 = 0x0A, /* Power */
456 VSR_PHY_MODE11 = 0x0B, /* Phy Mode */
457 VSR_PHY_VS0 = 0x0C, /* Vednor Specific 0 */
458 VSR_PHY_VS1 = 0x0D, /* Vednor Specific 1 */
461 enum pci_cfg_registers {
467 enum pci_cfg_register_bits {
468 PCTL_PWR_ON = (0xFU << 24),
469 PCTL_OFF = (0xFU << 12),
470 PRD_REQ_SIZE = (0x4000),
471 PRD_REQ_MASK = (0x00007000),
474 enum nvram_layout_offsets {
475 NVR_SIG = 0x00, /* 0xAA, 0x55 */
476 NVR_SAS_ADDR = 0x02, /* 8-byte SAS address */
486 PORT_TYPE_SAS = (1L << 1),
487 PORT_TYPE_SATA = (1L << 0),
490 /* Command Table Format */
498 STP_ATAPI_CMD = 0x40,
507 SB_EIR_OFF = 0x00, /* Error Information Record */
508 SB_RFB_OFF = 0x08, /* Response Frame Buffer */
509 SB_RFB_MAX = 0x400, /* RFB size*/
512 enum error_info_rec {
513 CMD_ISS_STPD = (1U << 31), /* Cmd Issue Stopped */
516 struct mvs_chip_info {
522 struct mvs_err_info {
528 __le64 addr; /* 64-bit buffer address */
530 __le32 len; /* 16-bit length */
534 __le32 flags; /* PRD tbl len; SAS, SATA ctl */
535 __le32 lens; /* cmd, max resp frame len */
536 __le32 tags; /* targ port xfer tag; tag */
537 __le32 data_len; /* data xfer len */
538 __le64 cmd_tbl; /* command table address */
539 __le64 open_frame; /* open addr frame address */
540 __le64 status_buf; /* status buffer address */
541 __le64 prd_tbl; /* PRD tbl address */
545 struct mvs_slot_info {
546 struct sas_task *task;
550 /* DMA buffer for storing cmd tbl, open addr frame, status buffer,
563 struct asd_sas_port sas_port;
570 struct mvs_port *port;
571 struct asd_sas_phy sas_phy;
572 struct sas_identify identify;
573 struct scsi_device *sdev;
575 u64 att_dev_sas_addr;
589 spinlock_t lock; /* host-wide lock */
590 struct pci_dev *pdev; /* our device */
591 void __iomem *regs; /* enhanced mode registers */
592 void __iomem *peri_regs; /* peripheral registers */
594 u8 sas_addr[SAS_ADDR_SIZE];
595 struct sas_ha_struct sas; /* SCSI/SAS glue */
596 struct Scsi_Host *shost;
598 __le32 *tx; /* TX (delivery) DMA ring */
600 u32 tx_prod; /* cached next-producer idx */
602 __le32 *rx; /* RX (completion) DMA ring */
604 u32 rx_cons; /* RX consumer idx */
606 __le32 *rx_fis; /* RX'd FIS area */
607 dma_addr_t rx_fis_dma;
609 struct mvs_cmd_hdr *slot; /* DMA command header slots */
612 const struct mvs_chip_info *chip;
614 unsigned long tags[MVS_SLOTS];
615 struct mvs_slot_info slot_info[MVS_SLOTS];
616 /* further per-slot information */
617 struct mvs_phy phy[MVS_MAX_PHYS];
618 struct mvs_port port[MVS_MAX_PHYS];
620 u32 can_queue; /* per adapter */
625 struct mvs_queue_task {
626 struct list_head list;
631 static int mvs_phy_control(struct asd_sas_phy *sas_phy, enum phy_func func,
633 static u32 mvs_read_phy_ctl(struct mvs_info *mvi, u32 port);
634 static void mvs_write_phy_ctl(struct mvs_info *mvi, u32 port, u32 val);
635 static u32 mvs_read_port(struct mvs_info *mvi, u32 off, u32 off2, u32 port);
636 static void mvs_write_port(struct mvs_info *mvi, u32 off, u32 off2,
638 static u32 mvs_read_port_cfg_data(struct mvs_info *mvi, u32 port);
639 static void mvs_write_port_cfg_data(struct mvs_info *mvi, u32 port, u32 val);
640 static void mvs_write_port_cfg_addr(struct mvs_info *mvi, u32 port, u32 addr);
641 static u32 mvs_read_port_vsr_data(struct mvs_info *mvi, u32 port);
642 static void mvs_write_port_vsr_data(struct mvs_info *mvi, u32 port, u32 val);
643 static void mvs_write_port_vsr_addr(struct mvs_info *mvi, u32 port, u32 addr);
644 static u32 mvs_read_port_irq_stat(struct mvs_info *mvi, u32 port);
645 static void mvs_write_port_irq_stat(struct mvs_info *mvi, u32 port, u32 val);
646 static void mvs_write_port_irq_mask(struct mvs_info *mvi, u32 port, u32 val);
647 static u32 mvs_read_port_irq_mask(struct mvs_info *mvi, u32 port);
649 static u32 mvs_is_phy_ready(struct mvs_info *mvi, int i);
650 static void mvs_detect_porttype(struct mvs_info *mvi, int i);
651 static void mvs_update_phyinfo(struct mvs_info *mvi, int i, int get_st);
652 static void mvs_free_reg_set(struct mvs_info *mvi, struct mvs_port *port);
653 static u8 mvs_assign_reg_set(struct mvs_info *mvi, struct mvs_port *port);
654 static u32 mvs_is_sig_fis_received(u32 irq_status);
656 static int mvs_scan_finished(struct Scsi_Host *, unsigned long);
657 static void mvs_scan_start(struct Scsi_Host *);
658 static int mvs_sas_slave_alloc(struct scsi_device *scsi_dev);
660 static struct scsi_transport_template *mvs_stt;
662 static const struct mvs_chip_info mvs_chips[] = {
663 [chip_6320] = { 2, 16, 9 },
664 [chip_6440] = { 4, 16, 9 },
665 [chip_6480] = { 8, 32, 10 },
668 static struct scsi_host_template mvs_sht = {
669 .module = THIS_MODULE,
671 .queuecommand = sas_queuecommand,
672 .target_alloc = sas_target_alloc,
673 .slave_configure = sas_slave_configure,
674 .slave_destroy = sas_slave_destroy,
675 .scan_finished = mvs_scan_finished,
676 .scan_start = mvs_scan_start,
677 .change_queue_depth = sas_change_queue_depth,
678 .change_queue_type = sas_change_queue_type,
679 .bios_param = sas_bios_param,
683 .sg_tablesize = SG_ALL,
684 .max_sectors = SCSI_DEFAULT_MAX_SECTORS,
685 .use_clustering = ENABLE_CLUSTERING,
686 .eh_device_reset_handler = sas_eh_device_reset_handler,
687 .eh_bus_reset_handler = sas_eh_bus_reset_handler,
688 .slave_alloc = mvs_sas_slave_alloc,
689 .target_destroy = sas_target_destroy,
693 static void mvs_hexdump(u32 size, u8 *data, u32 baseaddr)
701 printk("%08X : ", baseaddr + offset);
707 for (i = 0; i < 16; i++) {
709 printk("%02X ", (u32)data[i]);
714 for (i = 0; i < run; i++)
715 printk("%c", isalnum(data[i]) ? data[i] : '.');
723 static void mvs_hba_sb_dump(struct mvs_info *mvi, u32 tag,
724 enum sas_protocol proto)
728 struct pci_dev *pdev = mvi->pdev;
729 struct mvs_slot_info *slot = &mvi->slot_info[tag];
731 offset = slot->cmd_size + MVS_OAF_SZ +
732 sizeof(struct mvs_prd) * slot->n_elem;
733 dev_printk(KERN_DEBUG, &pdev->dev, "+---->Status buffer[%d] :\n",
735 mvs_hexdump(32, (u8 *) slot->response,
736 (u32) slot->buf_dma + offset);
740 static void mvs_hba_memory_dump(struct mvs_info *mvi, u32 tag,
741 enum sas_protocol proto)
744 u32 sz, w_ptr, r_ptr;
746 void __iomem *regs = mvi->regs;
747 struct pci_dev *pdev = mvi->pdev;
748 struct mvs_slot_info *slot = &mvi->slot_info[tag];
751 sz = mr32(TX_CFG) & TX_RING_SZ_MASK;
752 w_ptr = mr32(TX_PROD_IDX) & TX_RING_SZ_MASK;
753 r_ptr = mr32(TX_CONS_IDX) & TX_RING_SZ_MASK;
754 addr = mr32(TX_HI) << 16 << 16 | mr32(TX_LO);
755 dev_printk(KERN_DEBUG, &pdev->dev,
756 "Delivery Queue Size=%04d , WRT_PTR=%04X , RD_PTR=%04X\n",
758 dev_printk(KERN_DEBUG, &pdev->dev,
759 "Delivery Queue Base Address=0x%llX (PA)"
760 "(tx_dma=0x%llX), Entry=%04d\n",
761 addr, mvi->tx_dma, w_ptr);
762 mvs_hexdump(sizeof(u32), (u8 *)(&mvi->tx[mvi->tx_prod]),
763 (u32) mvi->tx_dma + sizeof(u32) * w_ptr);
765 addr = mr32(CMD_LIST_HI) << 16 << 16 | mr32(CMD_LIST_LO);
766 dev_printk(KERN_DEBUG, &pdev->dev,
767 "Command List Base Address=0x%llX (PA)"
768 "(slot_dma=0x%llX), Header=%03d\n",
769 addr, mvi->slot_dma, tag);
770 dev_printk(KERN_DEBUG, &pdev->dev, "Command Header[%03d]:\n", tag);
772 mvs_hexdump(sizeof(struct mvs_cmd_hdr), (u8 *)(&mvi->slot[tag]),
773 (u32) mvi->slot_dma + tag * sizeof(struct mvs_cmd_hdr));
774 /*1.command table area */
775 dev_printk(KERN_DEBUG, &pdev->dev, "+---->Command Table :\n");
776 mvs_hexdump(slot->cmd_size, (u8 *) slot->buf, (u32) slot->buf_dma);
777 /*2.open address frame area */
778 dev_printk(KERN_DEBUG, &pdev->dev, "+---->Open Address Frame :\n");
779 mvs_hexdump(MVS_OAF_SZ, (u8 *) slot->buf + slot->cmd_size,
780 (u32) slot->buf_dma + slot->cmd_size);
782 mvs_hba_sb_dump(mvi, tag, proto);
784 dev_printk(KERN_DEBUG, &pdev->dev, "+---->PRD table :\n");
785 mvs_hexdump(sizeof(struct mvs_prd) * slot->n_elem,
786 (u8 *) slot->buf + slot->cmd_size + MVS_OAF_SZ,
787 (u32) slot->buf_dma + slot->cmd_size + MVS_OAF_SZ);
791 static void mvs_hba_cq_dump(struct mvs_info *mvi)
795 void __iomem *regs = mvi->regs;
796 struct pci_dev *pdev = mvi->pdev;
797 u32 entry = mvi->rx_cons + 1;
798 u32 rx_desc = le32_to_cpu(mvi->rx[entry]);
800 /*Completion Queue */
801 addr = mr32(RX_HI) << 16 << 16 | mr32(RX_LO);
802 dev_printk(KERN_DEBUG, &pdev->dev, "Completion Task = 0x%08X\n",
803 (u32) mvi->slot_info[rx_desc & RXQ_SLOT_MASK].task);
804 dev_printk(KERN_DEBUG, &pdev->dev,
805 "Completion List Base Address=0x%llX (PA), "
806 "CQ_Entry=%04d, CQ_WP=0x%08X\n",
807 addr, entry - 1, mvi->rx[0]);
808 mvs_hexdump(sizeof(u32), (u8 *)(&rx_desc),
809 mvi->rx_dma + sizeof(u32) * entry);
813 static void mvs_hba_interrupt_enable(struct mvs_info *mvi)
815 void __iomem *regs = mvi->regs;
820 mw32(GBL_CTL, tmp | INT_EN);
823 static void mvs_hba_interrupt_disable(struct mvs_info *mvi)
825 void __iomem *regs = mvi->regs;
830 mw32(GBL_CTL, tmp & ~INT_EN);
833 static int mvs_int_rx(struct mvs_info *mvi, bool self_clear);
835 /* move to PCI layer or libata core? */
836 static int pci_go_64(struct pci_dev *pdev)
840 if (!pci_set_dma_mask(pdev, DMA_64BIT_MASK)) {
841 rc = pci_set_consistent_dma_mask(pdev, DMA_64BIT_MASK);
843 rc = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK);
845 dev_printk(KERN_ERR, &pdev->dev,
846 "64-bit DMA enable failed\n");
851 rc = pci_set_dma_mask(pdev, DMA_32BIT_MASK);
853 dev_printk(KERN_ERR, &pdev->dev,
854 "32-bit DMA enable failed\n");
857 rc = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK);
859 dev_printk(KERN_ERR, &pdev->dev,
860 "32-bit consistent DMA enable failed\n");
868 static void mvs_tag_clear(struct mvs_info *mvi, u32 tag)
870 mvi->tag_in = (mvi->tag_in + 1) & (MVS_SLOTS - 1);
871 mvi->tags[mvi->tag_in] = tag;
874 static void mvs_tag_free(struct mvs_info *mvi, u32 tag)
876 mvi->tag_out = (mvi->tag_out - 1) & (MVS_SLOTS - 1);
879 static int mvs_tag_alloc(struct mvs_info *mvi, u32 *tag_out)
881 if (mvi->tag_out != mvi->tag_in) {
882 *tag_out = mvi->tags[mvi->tag_out];
883 mvi->tag_out = (mvi->tag_out + 1) & (MVS_SLOTS - 1);
889 static void mvs_tag_init(struct mvs_info *mvi)
892 for (i = 0; i < MVS_SLOTS; ++i)
895 mvi->tag_in = MVS_SLOTS - 1;
898 #ifndef MVS_DISABLE_NVRAM
899 static int mvs_eep_read(void __iomem *regs, u32 addr, u32 *data)
903 if (addr & ~SPI_ADDR_MASK)
906 writel(addr, regs + SPI_CMD);
907 writel(TWSI_RD, regs + SPI_CTL);
909 while (timeout-- > 0) {
910 if (readl(regs + SPI_CTL) & TWSI_RDY) {
911 *data = readl(regs + SPI_DATA);
921 static int mvs_eep_read_buf(void __iomem *regs, u32 addr,
922 void *buf, u32 buflen)
924 u32 addr_end, tmp_addr, i, j;
927 u8 *tmp8, *buf8 = buf;
929 addr_end = addr + buflen;
930 tmp_addr = ALIGN(addr, 4);
936 rc = mvs_eep_read(regs, tmp_addr, &tmp);
941 for (i = j; i < 4; i++)
947 for (j = ALIGN(addr_end, 4); tmp_addr < j; tmp_addr += 4) {
948 rc = mvs_eep_read(regs, tmp_addr, &tmp);
952 memcpy(buf8, &tmp, 4);
956 if (tmp_addr < addr_end) {
957 rc = mvs_eep_read(regs, tmp_addr, &tmp);
962 j = addr_end - tmp_addr;
963 for (i = 0; i < j; i++)
973 static int mvs_nvram_read(struct mvs_info *mvi, u32 addr,
974 void *buf, u32 buflen)
976 #ifndef MVS_DISABLE_NVRAM
977 void __iomem *regs = mvi->regs;
983 rc = mvs_eep_read_buf(regs, addr, &hdr, 2);
985 msg = "nvram hdr read failed";
988 rc = mvs_eep_read_buf(regs, addr + 2, buf, buflen);
990 msg = "nvram read failed";
994 if (hdr[0] != 0x5A) {
996 msg = "invalid nvram entry id";
1002 sum = ((u32)hdr[0]) + ((u32)hdr[1]);
1003 for (i = 0; i < buflen; i++)
1004 sum += ((u32)tmp[i]);
1007 msg = "nvram checksum failure";
1015 dev_printk(KERN_ERR, &mvi->pdev->dev, "%s", msg);
1018 /* FIXME , For SAS target mode */
1019 memcpy(buf, "\x00\x00\xab\x11\x30\x04\x05\x50", 8);
1024 static void mvs_bytes_dmaed(struct mvs_info *mvi, int i)
1026 struct mvs_phy *phy = &mvi->phy[i];
1028 if (!phy->phy_attached)
1031 if (phy->phy_type & PORT_TYPE_SAS) {
1032 struct sas_identify_frame *id;
1034 id = (struct sas_identify_frame *)phy->frame_rcvd;
1035 id->dev_type = phy->identify.device_type;
1036 id->initiator_bits = SAS_PROTOCOL_ALL;
1037 id->target_bits = phy->identify.target_port_protocols;
1038 } else if (phy->phy_type & PORT_TYPE_SATA) {
1041 mvi->sas.sas_phy[i]->frame_rcvd_size = phy->frame_rcvd_size;
1042 mvi->sas.notify_port_event(mvi->sas.sas_phy[i],
1046 static int mvs_scan_finished(struct Scsi_Host *shost, unsigned long time)
1048 /* give the phy enabling interrupt event time to come in (1s
1049 * is empirically about all it takes) */
1052 /* Wait for discovery to finish */
1053 scsi_flush_work(shost);
1057 static void mvs_scan_start(struct Scsi_Host *shost)
1060 struct mvs_info *mvi = SHOST_TO_SAS_HA(shost)->lldd_ha;
1062 for (i = 0; i < mvi->chip->n_phy; ++i) {
1063 mvs_bytes_dmaed(mvi, i);
1067 static int mvs_sas_slave_alloc(struct scsi_device *scsi_dev)
1071 rc = sas_slave_alloc(scsi_dev);
1076 static void mvs_int_port(struct mvs_info *mvi, int port_no, u32 events)
1078 struct pci_dev *pdev = mvi->pdev;
1079 struct sas_ha_struct *sas_ha = &mvi->sas;
1080 struct mvs_phy *phy = &mvi->phy[port_no];
1081 struct asd_sas_phy *sas_phy = &phy->sas_phy;
1083 phy->irq_status = mvs_read_port_irq_stat(mvi, port_no);
1085 * events is port event now ,
1086 * we need check the interrupt status which belongs to per port.
1088 dev_printk(KERN_DEBUG, &pdev->dev,
1089 "Port %d Event = %X\n",
1090 port_no, phy->irq_status);
1092 if (phy->irq_status & (PHYEV_POOF | PHYEV_DEC_ERR)) {
1093 if (!mvs_is_phy_ready(mvi, port_no)) {
1094 sas_phy_disconnected(sas_phy);
1095 sas_ha->notify_phy_event(sas_phy, PHYE_LOSS_OF_SIGNAL);
1097 mvs_phy_control(sas_phy, PHY_FUNC_LINK_RESET, NULL);
1099 if (!(phy->irq_status & PHYEV_DEC_ERR)) {
1100 if (phy->irq_status & PHYEV_COMWAKE) {
1101 u32 tmp = mvs_read_port_irq_mask(mvi, port_no);
1102 mvs_write_port_irq_mask(mvi, port_no,
1103 tmp | PHYEV_SIG_FIS);
1105 if (phy->irq_status & (PHYEV_SIG_FIS | PHYEV_ID_DONE)) {
1106 phy->phy_status = mvs_is_phy_ready(mvi, port_no);
1107 if (phy->phy_status) {
1108 mvs_detect_porttype(mvi, port_no);
1110 if (phy->phy_type & PORT_TYPE_SATA) {
1111 u32 tmp = mvs_read_port_irq_mask(mvi,
1113 tmp &= ~PHYEV_SIG_FIS;
1114 mvs_write_port_irq_mask(mvi,
1118 mvs_update_phyinfo(mvi, port_no, 0);
1119 sas_ha->notify_phy_event(sas_phy,
1121 mvs_bytes_dmaed(mvi, port_no);
1123 dev_printk(KERN_DEBUG, &pdev->dev,
1124 "plugin interrupt but phy is gone\n");
1125 mvs_phy_control(sas_phy, PHY_FUNC_LINK_RESET,
1128 } else if (phy->irq_status & PHYEV_BROAD_CH)
1129 sas_ha->notify_port_event(sas_phy,
1130 PORTE_BROADCAST_RCVD);
1132 mvs_write_port_irq_stat(mvi, port_no, phy->irq_status);
1135 static void mvs_int_sata(struct mvs_info *mvi)
1140 static void mvs_slot_free(struct mvs_info *mvi, struct sas_task *task,
1141 struct mvs_slot_info *slot, u32 slot_idx)
1143 if (!sas_protocol_ata(task->task_proto))
1145 pci_unmap_sg(mvi->pdev, task->scatter,
1146 slot->n_elem, task->data_dir);
1148 switch (task->task_proto) {
1149 case SAS_PROTOCOL_SMP:
1150 pci_unmap_sg(mvi->pdev, &task->smp_task.smp_resp, 1,
1151 PCI_DMA_FROMDEVICE);
1152 pci_unmap_sg(mvi->pdev, &task->smp_task.smp_req, 1,
1156 case SAS_PROTOCOL_SATA:
1157 case SAS_PROTOCOL_STP:
1158 case SAS_PROTOCOL_SSP:
1165 mvs_tag_clear(mvi, slot_idx);
1168 static void mvs_slot_err(struct mvs_info *mvi, struct sas_task *task,
1171 struct mvs_slot_info *slot = &mvi->slot_info[slot_idx];
1172 u64 err_dw0 = *(u32 *) slot->response;
1173 void __iomem *regs = mvi->regs;
1176 if (err_dw0 & CMD_ISS_STPD)
1177 if (sas_protocol_ata(task->task_proto)) {
1178 tmp = mr32(INT_STAT_SRS);
1179 mw32(INT_STAT_SRS, tmp & 0xFFFF);
1182 mvs_hba_sb_dump(mvi, slot_idx, task->task_proto);
1185 static int mvs_slot_complete(struct mvs_info *mvi, u32 rx_desc)
1187 u32 slot_idx = rx_desc & RXQ_SLOT_MASK;
1188 struct mvs_slot_info *slot = &mvi->slot_info[slot_idx];
1189 struct sas_task *task = slot->task;
1190 struct task_status_struct *tstat = &task->task_status;
1191 struct mvs_port *port = &mvi->port[task->dev->port->id];
1195 spin_lock(&task->task_state_lock);
1196 aborted = task->task_state_flags & SAS_TASK_STATE_ABORTED;
1198 task->task_state_flags &=
1199 ~(SAS_TASK_STATE_PENDING | SAS_TASK_AT_INITIATOR);
1200 task->task_state_flags |= SAS_TASK_STATE_DONE;
1202 spin_unlock(&task->task_state_lock);
1207 memset(tstat, 0, sizeof(*tstat));
1208 tstat->resp = SAS_TASK_COMPLETE;
1211 if (unlikely(!port->port_attached)) {
1212 tstat->stat = SAS_PHY_DOWN;
1216 /* error info record present */
1217 if ((rx_desc & RXQ_ERR) && (*(u64 *) slot->response)) {
1218 tstat->stat = SAM_CHECK_COND;
1219 mvs_slot_err(mvi, task, slot_idx);
1223 switch (task->task_proto) {
1224 case SAS_PROTOCOL_SSP:
1225 /* hw says status == 0, datapres == 0 */
1226 if (rx_desc & RXQ_GOOD) {
1227 tstat->stat = SAM_GOOD;
1228 tstat->resp = SAS_TASK_COMPLETE;
1230 /* response frame present */
1231 else if (rx_desc & RXQ_RSP) {
1232 struct ssp_response_iu *iu =
1233 slot->response + sizeof(struct mvs_err_info);
1234 sas_ssp_task_response(&mvi->pdev->dev, task, iu);
1237 /* should never happen? */
1239 tstat->stat = SAM_CHECK_COND;
1242 case SAS_PROTOCOL_SMP: {
1243 struct scatterlist *sg_resp = &task->smp_task.smp_resp;
1244 tstat->stat = SAM_GOOD;
1245 to = kmap_atomic(sg_page(sg_resp), KM_IRQ0);
1246 memcpy(to + sg_resp->offset,
1247 slot->response + sizeof(struct mvs_err_info),
1248 sg_dma_len(sg_resp));
1249 kunmap_atomic(to, KM_IRQ0);
1253 case SAS_PROTOCOL_SATA:
1254 case SAS_PROTOCOL_STP:
1255 case SAS_PROTOCOL_SATA | SAS_PROTOCOL_STP: {
1256 struct ata_task_resp *resp =
1257 (struct ata_task_resp *)tstat->buf;
1259 if ((rx_desc & (RXQ_DONE | RXQ_ERR | RXQ_ATTN)) ==
1261 tstat->stat = SAM_GOOD;
1263 tstat->stat = SAM_CHECK_COND;
1265 resp->frame_len = sizeof(struct dev_to_host_fis);
1266 memcpy(&resp->ending_fis[0],
1267 SATA_RECEIVED_D2H_FIS(port->taskfileset),
1268 sizeof(struct dev_to_host_fis));
1269 if (resp->ending_fis[2] & ATA_ERR)
1270 mvs_hexdump(16, resp->ending_fis, 0);
1275 tstat->stat = SAM_CHECK_COND;
1280 mvs_slot_free(mvi, task, slot, slot_idx);
1281 task->task_done(task);
1285 static void mvs_int_full(struct mvs_info *mvi)
1287 void __iomem *regs = mvi->regs;
1291 stat = mr32(INT_STAT);
1293 mvs_int_rx(mvi, false);
1295 for (i = 0; i < MVS_MAX_PORTS; i++) {
1296 tmp = (stat >> i) & (CINT_PORT | CINT_PORT_STOPPED);
1298 mvs_int_port(mvi, i, tmp);
1301 if (stat & CINT_SRS)
1304 mw32(INT_STAT, stat);
1307 static int mvs_int_rx(struct mvs_info *mvi, bool self_clear)
1309 void __iomem *regs = mvi->regs;
1310 u32 rx_prod_idx, rx_desc;
1312 struct pci_dev *pdev = mvi->pdev;
1314 /* the first dword in the RX ring is special: it contains
1315 * a mirror of the hardware's RX producer index, so that
1316 * we don't have to stall the CPU reading that register.
1317 * The actual RX ring is offset by one dword, due to this.
1319 rx_prod_idx = mr32(RX_CONS_IDX) & RX_RING_SZ_MASK;
1320 if (rx_prod_idx == 0xfff) { /* h/w hasn't touched RX ring yet */
1321 mvi->rx_cons = 0xfff;
1325 /* The CMPL_Q may come late, read from register and try again
1326 * note: if coalescing is enabled,
1327 * it will need to read from register every time for sure
1329 if (mvi->rx_cons == rx_prod_idx)
1332 if (mvi->rx_cons == 0xfff)
1333 mvi->rx_cons = MVS_RX_RING_SZ - 1;
1335 while (mvi->rx_cons != rx_prod_idx) {
1337 /* increment our internal RX consumer pointer */
1338 mvi->rx_cons = (mvi->rx_cons + 1) & (MVS_RX_RING_SZ - 1);
1340 rx_desc = le32_to_cpu(mvi->rx[mvi->rx_cons + 1]);
1342 mvs_hba_cq_dump(mvi);
1344 if (unlikely(rx_desc & RXQ_DONE))
1345 mvs_slot_complete(mvi, rx_desc);
1346 if (rx_desc & RXQ_ATTN) {
1348 dev_printk(KERN_DEBUG, &pdev->dev, "ATTN %X\n",
1350 } else if (rx_desc & RXQ_ERR) {
1351 dev_printk(KERN_DEBUG, &pdev->dev, "RXQ_ERR %X\n",
1356 if (attn && self_clear)
1362 static irqreturn_t mvs_interrupt(int irq, void *opaque)
1364 struct mvs_info *mvi = opaque;
1365 void __iomem *regs = mvi->regs;
1368 stat = mr32(GBL_INT_STAT);
1370 /* clear CMD_CMPLT ASAP */
1371 mw32_f(INT_STAT, CINT_DONE);
1373 if (stat == 0 || stat == 0xffffffff)
1376 spin_lock(&mvi->lock);
1380 spin_unlock(&mvi->lock);
1385 #ifndef MVS_DISABLE_MSI
1386 static irqreturn_t mvs_msi_interrupt(int irq, void *opaque)
1388 struct mvs_info *mvi = opaque;
1390 spin_lock(&mvi->lock);
1392 mvs_int_rx(mvi, true);
1394 spin_unlock(&mvi->lock);
1400 struct mvs_task_exec_info {
1401 struct sas_task *task;
1402 struct mvs_cmd_hdr *hdr;
1403 struct mvs_port *port;
1408 static int mvs_task_prep_smp(struct mvs_info *mvi,
1409 struct mvs_task_exec_info *tei)
1412 struct sas_task *task = tei->task;
1413 struct mvs_cmd_hdr *hdr = tei->hdr;
1414 struct scatterlist *sg_req, *sg_resp;
1415 u32 req_len, resp_len, tag = tei->tag;
1418 dma_addr_t buf_tmp_dma;
1419 struct mvs_prd *buf_prd;
1420 struct scatterlist *sg;
1421 struct mvs_slot_info *slot = &mvi->slot_info[tag];
1422 struct asd_sas_port *sas_port = task->dev->port;
1423 u32 flags = (tei->n_elem << MCH_PRD_LEN_SHIFT);
1429 * DMA-map SMP request, response buffers
1431 sg_req = &task->smp_task.smp_req;
1432 elem = pci_map_sg(mvi->pdev, sg_req, 1, PCI_DMA_TODEVICE);
1435 req_len = sg_dma_len(sg_req);
1437 sg_resp = &task->smp_task.smp_resp;
1438 elem = pci_map_sg(mvi->pdev, sg_resp, 1, PCI_DMA_FROMDEVICE);
1443 resp_len = sg_dma_len(sg_resp);
1445 /* must be in dwords */
1446 if ((req_len & 0x3) || (resp_len & 0x3)) {
1452 * arrange MVS_SLOT_BUF_SZ-sized DMA buffer according to our needs
1455 /* region 1: command table area (MVS_SSP_CMD_SZ bytes) ************** */
1456 buf_tmp = slot->buf;
1457 buf_tmp_dma = slot->buf_dma;
1461 hdr->cmd_tbl = cpu_to_le64(buf_tmp_dma);
1463 buf_tmp_dma += req_len;
1464 slot->cmd_size = req_len;
1466 hdr->cmd_tbl = cpu_to_le64(sg_dma_address(sg_req));
1469 /* region 2: open address frame area (MVS_OAF_SZ bytes) ********* */
1471 hdr->open_frame = cpu_to_le64(buf_tmp_dma);
1473 buf_tmp += MVS_OAF_SZ;
1474 buf_tmp_dma += MVS_OAF_SZ;
1476 /* region 3: PRD table ********************************************* */
1479 hdr->prd_tbl = cpu_to_le64(buf_tmp_dma);
1483 i = sizeof(struct mvs_prd) * tei->n_elem;
1487 /* region 4: status buffer (larger the PRD, smaller this buf) ****** */
1488 slot->response = buf_tmp;
1489 hdr->status_buf = cpu_to_le64(buf_tmp_dma);
1492 * Fill in TX ring and command slot header
1494 slot->tx = mvi->tx_prod;
1495 mvi->tx[mvi->tx_prod] = cpu_to_le32((TXQ_CMD_SMP << TXQ_CMD_SHIFT) |
1497 (sas_port->phy_mask << TXQ_PHY_SHIFT));
1499 hdr->flags |= flags;
1500 hdr->lens = cpu_to_le32(((resp_len / 4) << 16) | ((req_len - 4) / 4));
1501 hdr->tags = cpu_to_le32(tag);
1504 /* generate open address frame hdr (first 12 bytes) */
1505 buf_oaf[0] = (1 << 7) | (0 << 4) | 0x01; /* initiator, SMP, ftype 1h */
1506 buf_oaf[1] = task->dev->linkrate & 0xf;
1507 *(u16 *)(buf_oaf + 2) = 0xFFFF; /* SAS SPEC */
1508 memcpy(buf_oaf + 4, task->dev->sas_addr, SAS_ADDR_SIZE);
1510 /* fill in PRD (scatter/gather) table, if any */
1511 for_each_sg(task->scatter, sg, tei->n_elem, i) {
1512 buf_prd->addr = cpu_to_le64(sg_dma_address(sg));
1513 buf_prd->len = cpu_to_le32(sg_dma_len(sg));
1518 /* copy cmd table */
1519 from = kmap_atomic(sg_page(sg_req), KM_IRQ0);
1520 memcpy(buf_cmd, from + sg_req->offset, req_len);
1521 kunmap_atomic(from, KM_IRQ0);
1526 pci_unmap_sg(mvi->pdev, &tei->task->smp_task.smp_resp, 1,
1527 PCI_DMA_FROMDEVICE);
1529 pci_unmap_sg(mvi->pdev, &tei->task->smp_task.smp_req, 1,
1534 static void mvs_free_reg_set(struct mvs_info *mvi, struct mvs_port *port)
1536 void __iomem *regs = mvi->regs;
1538 u8 *tfs = &port->taskfileset;
1540 if (*tfs == MVS_ID_NOT_MAPPED)
1543 offs = 1U << ((*tfs & 0x0f) + PCS_EN_SATA_REG_SHIFT);
1546 mw32(PCS, tmp & ~offs);
1549 mw32(CTL, tmp & ~offs);
1552 tmp = mr32(INT_STAT_SRS) & (1U << *tfs);
1554 mw32(INT_STAT_SRS, tmp);
1556 *tfs = MVS_ID_NOT_MAPPED;
1559 static u8 mvs_assign_reg_set(struct mvs_info *mvi, struct mvs_port *port)
1563 void __iomem *regs = mvi->regs;
1565 if (port->taskfileset != MVS_ID_NOT_MAPPED)
1570 for (i = 0; i < mvi->chip->srs_sz; i++) {
1573 offs = 1U << ((i & 0x0f) + PCS_EN_SATA_REG_SHIFT);
1574 if (!(tmp & offs)) {
1575 port->taskfileset = i;
1578 mw32(PCS, tmp | offs);
1580 mw32(CTL, tmp | offs);
1581 tmp = mr32(INT_STAT_SRS) & (1U << i);
1583 mw32(INT_STAT_SRS, tmp);
1587 return MVS_ID_NOT_MAPPED;
1590 static u32 mvs_get_ncq_tag(struct sas_task *task)
1593 struct ata_queued_cmd *qc = task->uldd_task;
1601 static int mvs_task_prep_ata(struct mvs_info *mvi,
1602 struct mvs_task_exec_info *tei)
1604 struct sas_task *task = tei->task;
1605 struct domain_device *dev = task->dev;
1606 struct mvs_cmd_hdr *hdr = tei->hdr;
1607 struct asd_sas_port *sas_port = dev->port;
1608 struct mvs_slot_info *slot;
1609 struct scatterlist *sg;
1610 struct mvs_prd *buf_prd;
1611 struct mvs_port *port = tei->port;
1613 u32 flags = (tei->n_elem << MCH_PRD_LEN_SHIFT);
1615 u8 *buf_cmd, *buf_oaf;
1616 dma_addr_t buf_tmp_dma;
1617 u32 i, req_len, resp_len;
1618 const u32 max_resp_len = SB_RFB_MAX;
1620 if (mvs_assign_reg_set(mvi, port) == MVS_ID_NOT_MAPPED)
1623 slot = &mvi->slot_info[tag];
1624 slot->tx = mvi->tx_prod;
1625 mvi->tx[mvi->tx_prod] = cpu_to_le32(TXQ_MODE_I | tag |
1626 (TXQ_CMD_STP << TXQ_CMD_SHIFT) |
1627 (sas_port->phy_mask << TXQ_PHY_SHIFT) |
1628 (port->taskfileset << TXQ_SRS_SHIFT));
1630 if (task->ata_task.use_ncq)
1632 if (dev->sata_dev.command_set == ATAPI_COMMAND_SET) {
1633 if (task->ata_task.fis.command != ATA_CMD_ID_ATAPI)
1637 /* FIXME: fill in port multiplier number */
1639 hdr->flags = cpu_to_le32(flags);
1641 /* FIXME: the low order order 5 bits for the TAG if enable NCQ */
1642 if (task->ata_task.use_ncq) {
1643 hdr->tags = cpu_to_le32(mvs_get_ncq_tag(task));
1644 /*Fill in task file */
1645 task->ata_task.fis.sector_count = hdr->tags << 3;
1647 hdr->tags = cpu_to_le32(tag);
1648 hdr->data_len = cpu_to_le32(task->total_xfer_len);
1651 * arrange MVS_SLOT_BUF_SZ-sized DMA buffer according to our needs
1654 /* region 1: command table area (MVS_ATA_CMD_SZ bytes) ************** */
1655 buf_cmd = buf_tmp = slot->buf;
1656 buf_tmp_dma = slot->buf_dma;
1658 hdr->cmd_tbl = cpu_to_le64(buf_tmp_dma);
1660 buf_tmp += MVS_ATA_CMD_SZ;
1661 buf_tmp_dma += MVS_ATA_CMD_SZ;
1663 slot->cmd_size = MVS_ATA_CMD_SZ;
1666 /* region 2: open address frame area (MVS_OAF_SZ bytes) ********* */
1667 /* used for STP. unused for SATA? */
1669 hdr->open_frame = cpu_to_le64(buf_tmp_dma);
1671 buf_tmp += MVS_OAF_SZ;
1672 buf_tmp_dma += MVS_OAF_SZ;
1674 /* region 3: PRD table ********************************************* */
1677 hdr->prd_tbl = cpu_to_le64(buf_tmp_dma);
1681 i = sizeof(struct mvs_prd) * tei->n_elem;
1685 /* region 4: status buffer (larger the PRD, smaller this buf) ****** */
1686 /* FIXME: probably unused, for SATA. kept here just in case
1687 * we get a STP/SATA error information record
1689 slot->response = buf_tmp;
1690 hdr->status_buf = cpu_to_le64(buf_tmp_dma);
1692 req_len = sizeof(struct host_to_dev_fis);
1693 resp_len = MVS_SLOT_BUF_SZ - MVS_ATA_CMD_SZ -
1694 sizeof(struct mvs_err_info) - i;
1696 /* request, response lengths */
1697 resp_len = min(resp_len, max_resp_len);
1698 hdr->lens = cpu_to_le32(((resp_len / 4) << 16) | (req_len / 4));
1700 task->ata_task.fis.flags |= 0x80; /* C=1: update ATA cmd reg */
1701 /* fill in command FIS and ATAPI CDB */
1702 memcpy(buf_cmd, &task->ata_task.fis, sizeof(struct host_to_dev_fis));
1703 if (dev->sata_dev.command_set == ATAPI_COMMAND_SET)
1704 memcpy(buf_cmd + STP_ATAPI_CMD,
1705 task->ata_task.atapi_packet, 16);
1707 /* generate open address frame hdr (first 12 bytes) */
1708 buf_oaf[0] = (1 << 7) | (2 << 4) | 0x1; /* initiator, STP, ftype 1h */
1709 buf_oaf[1] = task->dev->linkrate & 0xf;
1710 *(u16 *)(buf_oaf + 2) = cpu_to_be16(tag);
1711 memcpy(buf_oaf + 4, task->dev->sas_addr, SAS_ADDR_SIZE);
1713 /* fill in PRD (scatter/gather) table, if any */
1714 for_each_sg(task->scatter, sg, tei->n_elem, i) {
1715 buf_prd->addr = cpu_to_le64(sg_dma_address(sg));
1716 buf_prd->len = cpu_to_le32(sg_dma_len(sg));
1723 static int mvs_task_prep_ssp(struct mvs_info *mvi,
1724 struct mvs_task_exec_info *tei)
1726 struct sas_task *task = tei->task;
1727 struct mvs_cmd_hdr *hdr = tei->hdr;
1728 struct mvs_port *port = tei->port;
1729 struct mvs_slot_info *slot;
1730 struct scatterlist *sg;
1731 struct mvs_prd *buf_prd;
1732 struct ssp_frame_hdr *ssp_hdr;
1734 u8 *buf_cmd, *buf_oaf, fburst = 0;
1735 dma_addr_t buf_tmp_dma;
1737 u32 resp_len, req_len, i, tag = tei->tag;
1738 const u32 max_resp_len = SB_RFB_MAX;
1740 slot = &mvi->slot_info[tag];
1742 slot->tx = mvi->tx_prod;
1743 mvi->tx[mvi->tx_prod] = cpu_to_le32(TXQ_MODE_I | tag |
1744 (TXQ_CMD_SSP << TXQ_CMD_SHIFT) |
1745 (port->wide_port_phymap << TXQ_PHY_SHIFT));
1748 if (task->ssp_task.enable_first_burst) {
1749 flags |= MCH_FBURST;
1752 hdr->flags = cpu_to_le32(flags |
1753 (tei->n_elem << MCH_PRD_LEN_SHIFT) |
1754 (MCH_SSP_FR_CMD << MCH_SSP_FR_TYPE_SHIFT));
1756 hdr->tags = cpu_to_le32(tag);
1757 hdr->data_len = cpu_to_le32(task->total_xfer_len);
1760 * arrange MVS_SLOT_BUF_SZ-sized DMA buffer according to our needs
1763 /* region 1: command table area (MVS_SSP_CMD_SZ bytes) ************** */
1764 buf_cmd = buf_tmp = slot->buf;
1765 buf_tmp_dma = slot->buf_dma;
1767 hdr->cmd_tbl = cpu_to_le64(buf_tmp_dma);
1769 buf_tmp += MVS_SSP_CMD_SZ;
1770 buf_tmp_dma += MVS_SSP_CMD_SZ;
1772 slot->cmd_size = MVS_SSP_CMD_SZ;
1775 /* region 2: open address frame area (MVS_OAF_SZ bytes) ********* */
1777 hdr->open_frame = cpu_to_le64(buf_tmp_dma);
1779 buf_tmp += MVS_OAF_SZ;
1780 buf_tmp_dma += MVS_OAF_SZ;
1782 /* region 3: PRD table ********************************************* */
1785 hdr->prd_tbl = cpu_to_le64(buf_tmp_dma);
1789 i = sizeof(struct mvs_prd) * tei->n_elem;
1793 /* region 4: status buffer (larger the PRD, smaller this buf) ****** */
1794 slot->response = buf_tmp;
1795 hdr->status_buf = cpu_to_le64(buf_tmp_dma);
1797 resp_len = MVS_SLOT_BUF_SZ - MVS_SSP_CMD_SZ - MVS_OAF_SZ -
1798 sizeof(struct mvs_err_info) - i;
1799 resp_len = min(resp_len, max_resp_len);
1801 req_len = sizeof(struct ssp_frame_hdr) + 28;
1803 /* request, response lengths */
1804 hdr->lens = cpu_to_le32(((resp_len / 4) << 16) | (req_len / 4));
1806 /* generate open address frame hdr (first 12 bytes) */
1807 buf_oaf[0] = (1 << 7) | (1 << 4) | 0x1; /* initiator, SSP, ftype 1h */
1808 buf_oaf[1] = task->dev->linkrate & 0xf;
1809 *(u16 *)(buf_oaf + 2) = cpu_to_be16(tag);
1810 memcpy(buf_oaf + 4, task->dev->sas_addr, SAS_ADDR_SIZE);
1812 /* fill in SSP frame header (Command Table.SSP frame header) */
1813 ssp_hdr = (struct ssp_frame_hdr *)buf_cmd;
1814 ssp_hdr->frame_type = SSP_COMMAND;
1815 memcpy(ssp_hdr->hashed_dest_addr, task->dev->hashed_sas_addr,
1816 HASHED_SAS_ADDR_SIZE);
1817 memcpy(ssp_hdr->hashed_src_addr,
1818 task->dev->port->ha->hashed_sas_addr, HASHED_SAS_ADDR_SIZE);
1819 ssp_hdr->tag = cpu_to_be16(tag);
1821 /* fill in command frame IU */
1822 buf_cmd += sizeof(*ssp_hdr);
1823 memcpy(buf_cmd, &task->ssp_task.LUN, 8);
1824 buf_cmd[9] = fburst | task->ssp_task.task_attr |
1825 (task->ssp_task.task_prio << 3);
1826 memcpy(buf_cmd + 12, &task->ssp_task.cdb, 16);
1828 /* fill in PRD (scatter/gather) table, if any */
1829 for_each_sg(task->scatter, sg, tei->n_elem, i) {
1830 buf_prd->addr = cpu_to_le64(sg_dma_address(sg));
1831 buf_prd->len = cpu_to_le32(sg_dma_len(sg));
1838 static int mvs_task_exec(struct sas_task *task, const int num, gfp_t gfp_flags)
1840 struct domain_device *dev = task->dev;
1841 struct mvs_info *mvi = dev->port->ha->lldd_ha;
1842 struct pci_dev *pdev = mvi->pdev;
1843 void __iomem *regs = mvi->regs;
1844 struct mvs_task_exec_info tei;
1845 struct sas_task *t = task;
1846 u32 tag = 0xdeadbeef, rc, n_elem = 0;
1847 unsigned long flags;
1848 u32 n = num, pass = 0;
1850 spin_lock_irqsave(&mvi->lock, flags);
1853 tei.port = &mvi->port[dev->port->id];
1855 if (!tei.port->port_attached) {
1856 struct task_status_struct *ts = &t->task_status;
1857 ts->stat = SAS_PHY_DOWN;
1862 if (!sas_protocol_ata(t->task_proto)) {
1863 if (t->num_scatter) {
1864 n_elem = pci_map_sg(mvi->pdev, t->scatter,
1873 n_elem = t->num_scatter;
1876 rc = mvs_tag_alloc(mvi, &tag);
1880 mvi->slot_info[tag].task = t;
1881 mvi->slot_info[tag].n_elem = n_elem;
1882 memset(mvi->slot_info[tag].buf, 0, MVS_SLOT_BUF_SZ);
1884 tei.hdr = &mvi->slot[tag];
1886 tei.n_elem = n_elem;
1888 switch (t->task_proto) {
1889 case SAS_PROTOCOL_SMP:
1890 rc = mvs_task_prep_smp(mvi, &tei);
1892 case SAS_PROTOCOL_SSP:
1893 rc = mvs_task_prep_ssp(mvi, &tei);
1895 case SAS_PROTOCOL_SATA:
1896 case SAS_PROTOCOL_STP:
1897 case SAS_PROTOCOL_SATA | SAS_PROTOCOL_STP:
1898 rc = mvs_task_prep_ata(mvi, &tei);
1901 dev_printk(KERN_ERR, &pdev->dev,
1902 "unknown sas_task proto: 0x%x\n",
1911 /* TODO: select normal or high priority */
1913 spin_lock(&t->task_state_lock);
1914 t->task_state_flags |= SAS_TASK_AT_INITIATOR;
1915 spin_unlock(&t->task_state_lock);
1918 spin_unlock_irqrestore(&mvi->lock, flags);
1919 mw32(TX_PROD_IDX, mvi->tx_prod);
1921 mvs_hba_memory_dump(mvi, tag, t->task_proto);
1924 mvi->tx_prod = (mvi->tx_prod + 1) & (MVS_CHIP_SLOT_SZ - 1);
1929 t = list_entry(t->list.next, struct sas_task, list);
1935 mvs_tag_free(mvi, tag);
1937 dev_printk(KERN_ERR, &pdev->dev, "mvsas exec failed[%d]!\n", rc);
1938 if (!sas_protocol_ata(t->task_proto))
1940 pci_unmap_sg(mvi->pdev, t->scatter, n_elem,
1944 mw32(TX_PROD_IDX, (mvi->tx_prod - 1) & (MVS_CHIP_SLOT_SZ - 1));
1945 spin_unlock_irqrestore(&mvi->lock, flags);
1949 static int mvs_task_abort(struct sas_task *task)
1952 unsigned long flags;
1953 struct mvs_info *mvi = task->dev->port->ha->lldd_ha;
1954 struct pci_dev *pdev = mvi->pdev;
1956 spin_lock_irqsave(&task->task_state_lock, flags);
1957 if (task->task_state_flags & SAS_TASK_STATE_DONE) {
1958 rc = TMF_RESP_FUNC_COMPLETE;
1961 spin_unlock_irqrestore(&task->task_state_lock, flags);
1964 rc = TMF_RESP_FUNC_COMPLETE;
1966 switch (task->task_proto) {
1967 case SAS_PROTOCOL_SMP:
1968 dev_printk(KERN_DEBUG, &pdev->dev, "SMP Abort! ");
1970 case SAS_PROTOCOL_SSP:
1971 dev_printk(KERN_DEBUG, &pdev->dev, "SSP Abort! ");
1973 case SAS_PROTOCOL_SATA:
1974 case SAS_PROTOCOL_STP:
1975 case SAS_PROTOCOL_SATA | SAS_PROTOCOL_STP:{
1976 dev_printk(KERN_DEBUG, &pdev->dev, "STP Abort! "
1977 "Dump D2H FIS: \n");
1978 mvs_hexdump(sizeof(struct host_to_dev_fis),
1979 (void *)&task->ata_task.fis, 0);
1980 dev_printk(KERN_DEBUG, &pdev->dev, "Dump ATAPI Cmd : \n");
1981 mvs_hexdump(16, task->ata_task.atapi_packet, 0);
1991 static void mvs_free(struct mvs_info *mvi)
1998 for (i = 0; i < MVS_SLOTS; i++) {
1999 struct mvs_slot_info *slot = &mvi->slot_info[i];
2002 dma_free_coherent(&mvi->pdev->dev, MVS_SLOT_BUF_SZ,
2003 slot->buf, slot->buf_dma);
2007 dma_free_coherent(&mvi->pdev->dev,
2008 sizeof(*mvi->tx) * MVS_CHIP_SLOT_SZ,
2009 mvi->tx, mvi->tx_dma);
2011 dma_free_coherent(&mvi->pdev->dev, MVS_RX_FISL_SZ,
2012 mvi->rx_fis, mvi->rx_fis_dma);
2014 dma_free_coherent(&mvi->pdev->dev,
2015 sizeof(*mvi->rx) * MVS_RX_RING_SZ,
2016 mvi->rx, mvi->rx_dma);
2018 dma_free_coherent(&mvi->pdev->dev,
2019 sizeof(*mvi->slot) * MVS_SLOTS,
2020 mvi->slot, mvi->slot_dma);
2021 #ifdef MVS_ENABLE_PERI
2023 iounmap(mvi->peri_regs);
2028 scsi_host_put(mvi->shost);
2029 kfree(mvi->sas.sas_port);
2030 kfree(mvi->sas.sas_phy);
2034 /* FIXME: locking? */
2035 static int mvs_phy_control(struct asd_sas_phy *sas_phy, enum phy_func func,
2038 struct mvs_info *mvi = sas_phy->ha->lldd_ha;
2039 int rc = 0, phy_id = sas_phy->id;
2042 tmp = mvs_read_phy_ctl(mvi, phy_id);
2045 case PHY_FUNC_SET_LINK_RATE:{
2046 struct sas_phy_linkrates *rates = funcdata;
2047 u32 lrmin = 0, lrmax = 0;
2049 lrmin = (rates->minimum_linkrate << 8);
2050 lrmax = (rates->maximum_linkrate << 12);
2057 tmp &= ~(0xf << 12);
2060 mvs_write_phy_ctl(mvi, phy_id, tmp);
2064 case PHY_FUNC_HARD_RESET:
2065 if (tmp & PHY_RST_HARD)
2067 mvs_write_phy_ctl(mvi, phy_id, tmp | PHY_RST_HARD);
2070 case PHY_FUNC_LINK_RESET:
2071 mvs_write_phy_ctl(mvi, phy_id, tmp | PHY_RST);
2074 case PHY_FUNC_DISABLE:
2075 case PHY_FUNC_RELEASE_SPINUP_HOLD:
2083 static void __devinit mvs_phy_init(struct mvs_info *mvi, int phy_id)
2085 struct mvs_phy *phy = &mvi->phy[phy_id];
2086 struct asd_sas_phy *sas_phy = &phy->sas_phy;
2088 sas_phy->enabled = (phy_id < mvi->chip->n_phy) ? 1 : 0;
2089 sas_phy->class = SAS;
2090 sas_phy->iproto = SAS_PROTOCOL_ALL;
2091 sas_phy->tproto = 0;
2092 sas_phy->type = PHY_TYPE_PHYSICAL;
2093 sas_phy->role = PHY_ROLE_INITIATOR;
2094 sas_phy->oob_mode = OOB_NOT_CONNECTED;
2095 sas_phy->linkrate = SAS_LINK_RATE_UNKNOWN;
2097 sas_phy->id = phy_id;
2098 sas_phy->sas_addr = &mvi->sas_addr[0];
2099 sas_phy->frame_rcvd = &phy->frame_rcvd[0];
2100 sas_phy->ha = &mvi->sas;
2101 sas_phy->lldd_phy = phy;
2104 static struct mvs_info *__devinit mvs_alloc(struct pci_dev *pdev,
2105 const struct pci_device_id *ent)
2107 struct mvs_info *mvi;
2108 unsigned long res_start, res_len, res_flag;
2109 struct asd_sas_phy **arr_phy;
2110 struct asd_sas_port **arr_port;
2111 const struct mvs_chip_info *chip = &mvs_chips[ent->driver_data];
2115 * alloc and init our per-HBA mvs_info struct
2118 mvi = kzalloc(sizeof(*mvi), GFP_KERNEL);
2122 spin_lock_init(&mvi->lock);
2126 if (pdev->device == 0x6440 && pdev->revision == 0)
2127 mvi->flags |= MVF_PHY_PWR_FIX;
2130 * alloc and init SCSI, SAS glue
2133 mvi->shost = scsi_host_alloc(&mvs_sht, sizeof(void *));
2137 arr_phy = kcalloc(MVS_MAX_PHYS, sizeof(void *), GFP_KERNEL);
2138 arr_port = kcalloc(MVS_MAX_PHYS, sizeof(void *), GFP_KERNEL);
2139 if (!arr_phy || !arr_port)
2142 for (i = 0; i < MVS_MAX_PHYS; i++) {
2143 mvs_phy_init(mvi, i);
2144 arr_phy[i] = &mvi->phy[i].sas_phy;
2145 arr_port[i] = &mvi->port[i].sas_port;
2148 SHOST_TO_SAS_HA(mvi->shost) = &mvi->sas;
2149 mvi->shost->transportt = mvs_stt;
2150 mvi->shost->max_id = 21;
2151 mvi->shost->max_lun = ~0;
2152 mvi->shost->max_channel = 0;
2153 mvi->shost->max_cmd_len = 16;
2155 mvi->sas.sas_ha_name = DRV_NAME;
2156 mvi->sas.dev = &pdev->dev;
2157 mvi->sas.lldd_module = THIS_MODULE;
2158 mvi->sas.sas_addr = &mvi->sas_addr[0];
2159 mvi->sas.sas_phy = arr_phy;
2160 mvi->sas.sas_port = arr_port;
2161 mvi->sas.num_phys = chip->n_phy;
2162 mvi->sas.lldd_max_execute_num = MVS_CHIP_SLOT_SZ - 1;
2163 mvi->sas.lldd_queue_size = MVS_QUEUE_SIZE;
2164 mvi->can_queue = (MVS_CHIP_SLOT_SZ >> 1) - 1;
2165 mvi->sas.lldd_ha = mvi;
2166 mvi->sas.core.shost = mvi->shost;
2171 * ioremap main and peripheral registers
2174 #ifdef MVS_ENABLE_PERI
2175 res_start = pci_resource_start(pdev, 2);
2176 res_len = pci_resource_len(pdev, 2);
2177 if (!res_start || !res_len)
2180 mvi->peri_regs = ioremap_nocache(res_start, res_len);
2181 if (!mvi->peri_regs)
2185 res_start = pci_resource_start(pdev, 4);
2186 res_len = pci_resource_len(pdev, 4);
2187 if (!res_start || !res_len)
2190 res_flag = pci_resource_flags(pdev, 4);
2191 if (res_flag & IORESOURCE_CACHEABLE)
2192 mvi->regs = ioremap(res_start, res_len);
2194 mvi->regs = ioremap_nocache(res_start, res_len);
2200 * alloc and init our DMA areas
2203 mvi->tx = dma_alloc_coherent(&pdev->dev,
2204 sizeof(*mvi->tx) * MVS_CHIP_SLOT_SZ,
2205 &mvi->tx_dma, GFP_KERNEL);
2208 memset(mvi->tx, 0, sizeof(*mvi->tx) * MVS_CHIP_SLOT_SZ);
2210 mvi->rx_fis = dma_alloc_coherent(&pdev->dev, MVS_RX_FISL_SZ,
2211 &mvi->rx_fis_dma, GFP_KERNEL);
2214 memset(mvi->rx_fis, 0, MVS_RX_FISL_SZ);
2216 mvi->rx = dma_alloc_coherent(&pdev->dev,
2217 sizeof(*mvi->rx) * MVS_RX_RING_SZ,
2218 &mvi->rx_dma, GFP_KERNEL);
2221 memset(mvi->rx, 0, sizeof(*mvi->rx) * MVS_RX_RING_SZ);
2223 mvi->rx[0] = cpu_to_le32(0xfff);
2224 mvi->rx_cons = 0xfff;
2226 mvi->slot = dma_alloc_coherent(&pdev->dev,
2227 sizeof(*mvi->slot) * MVS_SLOTS,
2228 &mvi->slot_dma, GFP_KERNEL);
2231 memset(mvi->slot, 0, sizeof(*mvi->slot) * MVS_SLOTS);
2233 for (i = 0; i < MVS_SLOTS; i++) {
2234 struct mvs_slot_info *slot = &mvi->slot_info[i];
2236 slot->buf = dma_alloc_coherent(&pdev->dev, MVS_SLOT_BUF_SZ,
2237 &slot->buf_dma, GFP_KERNEL);
2240 memset(slot->buf, 0, MVS_SLOT_BUF_SZ);
2243 /* finally, read NVRAM to get our SAS address */
2244 if (mvs_nvram_read(mvi, NVR_SAS_ADDR, &mvi->sas_addr, 8))
2253 static u32 mvs_cr32(void __iomem *regs, u32 addr)
2255 mw32(CMD_ADDR, addr);
2256 return mr32(CMD_DATA);
2259 static void mvs_cw32(void __iomem *regs, u32 addr, u32 val)
2261 mw32(CMD_ADDR, addr);
2262 mw32(CMD_DATA, val);
2265 static u32 mvs_read_phy_ctl(struct mvs_info *mvi, u32 port)
2267 void __iomem *regs = mvi->regs;
2268 return (port < 4)?mr32(P0_SER_CTLSTAT + port * 4):
2269 mr32(P4_SER_CTLSTAT + (port - 4) * 4);
2272 static void mvs_write_phy_ctl(struct mvs_info *mvi, u32 port, u32 val)
2274 void __iomem *regs = mvi->regs;
2276 mw32(P0_SER_CTLSTAT + port * 4, val);
2278 mw32(P4_SER_CTLSTAT + (port - 4) * 4, val);
2281 static u32 mvs_read_port(struct mvs_info *mvi, u32 off, u32 off2, u32 port)
2283 void __iomem *regs = mvi->regs + off;
2284 void __iomem *regs2 = mvi->regs + off2;
2285 return (port < 4)?readl(regs + port * 8):
2286 readl(regs2 + (port - 4) * 8);
2289 static void mvs_write_port(struct mvs_info *mvi, u32 off, u32 off2,
2292 void __iomem *regs = mvi->regs + off;
2293 void __iomem *regs2 = mvi->regs + off2;
2295 writel(val, regs + port * 8);
2297 writel(val, regs2 + (port - 4) * 8);
2300 static u32 mvs_read_port_cfg_data(struct mvs_info *mvi, u32 port)
2302 return mvs_read_port(mvi, MVS_P0_CFG_DATA, MVS_P4_CFG_DATA, port);
2305 static void mvs_write_port_cfg_data(struct mvs_info *mvi, u32 port, u32 val)
2307 mvs_write_port(mvi, MVS_P0_CFG_DATA, MVS_P4_CFG_DATA, port, val);
2310 static void mvs_write_port_cfg_addr(struct mvs_info *mvi, u32 port, u32 addr)
2312 mvs_write_port(mvi, MVS_P0_CFG_ADDR, MVS_P4_CFG_ADDR, port, addr);
2315 static u32 mvs_read_port_vsr_data(struct mvs_info *mvi, u32 port)
2317 return mvs_read_port(mvi, MVS_P0_VSR_DATA, MVS_P4_VSR_DATA, port);
2320 static void mvs_write_port_vsr_data(struct mvs_info *mvi, u32 port, u32 val)
2322 mvs_write_port(mvi, MVS_P0_VSR_DATA, MVS_P4_VSR_DATA, port, val);
2325 static void mvs_write_port_vsr_addr(struct mvs_info *mvi, u32 port, u32 addr)
2327 mvs_write_port(mvi, MVS_P0_VSR_ADDR, MVS_P4_VSR_ADDR, port, addr);
2330 static u32 mvs_read_port_irq_stat(struct mvs_info *mvi, u32 port)
2332 return mvs_read_port(mvi, MVS_P0_INT_STAT, MVS_P4_INT_STAT, port);
2335 static void mvs_write_port_irq_stat(struct mvs_info *mvi, u32 port, u32 val)
2337 mvs_write_port(mvi, MVS_P0_INT_STAT, MVS_P4_INT_STAT, port, val);
2340 static u32 mvs_read_port_irq_mask(struct mvs_info *mvi, u32 port)
2342 return mvs_read_port(mvi, MVS_P0_INT_MASK, MVS_P4_INT_MASK, port);
2345 static void mvs_write_port_irq_mask(struct mvs_info *mvi, u32 port, u32 val)
2347 mvs_write_port(mvi, MVS_P0_INT_MASK, MVS_P4_INT_MASK, port, val);
2350 static void __devinit mvs_phy_hacks(struct mvs_info *mvi)
2352 void __iomem *regs = mvi->regs;
2355 /* workaround for SATA R-ERR, to ignore phy glitch */
2356 tmp = mvs_cr32(regs, CMD_PHY_TIMER);
2359 mvs_cw32(regs, CMD_PHY_TIMER, tmp);
2361 /* enable retry 127 times */
2362 mvs_cw32(regs, CMD_SAS_CTL1, 0x7f7f);
2364 /* extend open frame timeout to max */
2365 tmp = mvs_cr32(regs, CMD_SAS_CTL0);
2368 mvs_cw32(regs, CMD_SAS_CTL0, tmp);
2370 /* workaround for WDTIMEOUT , set to 550 ms */
2371 mvs_cw32(regs, CMD_WD_TIMER, 0xffffff);
2373 /* not to halt for different port op during wideport link change */
2374 mvs_cw32(regs, CMD_APP_ERR_CONFIG, 0xffefbf7d);
2376 /* workaround for Seagate disk not-found OOB sequence, recv
2377 * COMINIT before sending out COMWAKE */
2378 tmp = mvs_cr32(regs, CMD_PHY_MODE_21);
2381 mvs_cw32(regs, CMD_PHY_MODE_21, tmp);
2383 tmp = mvs_cr32(regs, CMD_PHY_TIMER);
2385 tmp |= (2U << 29); /* 8 ms retry */
2386 mvs_cw32(regs, CMD_PHY_TIMER, tmp);
2388 /* TEST - for phy decoding error, adjust voltage levels */
2389 mw32(P0_VSR_ADDR + 0, 0x8);
2390 mw32(P0_VSR_DATA + 0, 0x2F0);
2392 mw32(P0_VSR_ADDR + 8, 0x8);
2393 mw32(P0_VSR_DATA + 8, 0x2F0);
2395 mw32(P0_VSR_ADDR + 16, 0x8);
2396 mw32(P0_VSR_DATA + 16, 0x2F0);
2398 mw32(P0_VSR_ADDR + 24, 0x8);
2399 mw32(P0_VSR_DATA + 24, 0x2F0);
2403 static void mvs_enable_xmt(struct mvs_info *mvi, int PhyId)
2405 void __iomem *regs = mvi->regs;
2409 if (mvi->chip->n_phy <= 4)
2410 tmp |= 1 << (PhyId + PCS_EN_PORT_XMT_SHIFT);
2412 tmp |= 1 << (PhyId + PCS_EN_PORT_XMT_SHIFT2);
2416 static void mvs_detect_porttype(struct mvs_info *mvi, int i)
2418 void __iomem *regs = mvi->regs;
2420 struct mvs_phy *phy = &mvi->phy[i];
2422 /* TODO check & save device type */
2423 reg = mr32(GBL_PORT_TYPE);
2425 if (reg & MODE_SAS_SATA & (1 << i))
2426 phy->phy_type |= PORT_TYPE_SAS;
2428 phy->phy_type |= PORT_TYPE_SATA;
2431 static void *mvs_get_d2h_reg(struct mvs_info *mvi, int i, void *buf)
2433 u32 *s = (u32 *) buf;
2438 mvs_write_port_cfg_addr(mvi, i, PHYR_SATA_SIG3);
2439 s[3] = mvs_read_port_cfg_data(mvi, i);
2441 mvs_write_port_cfg_addr(mvi, i, PHYR_SATA_SIG2);
2442 s[2] = mvs_read_port_cfg_data(mvi, i);
2444 mvs_write_port_cfg_addr(mvi, i, PHYR_SATA_SIG1);
2445 s[1] = mvs_read_port_cfg_data(mvi, i);
2447 mvs_write_port_cfg_addr(mvi, i, PHYR_SATA_SIG0);
2448 s[0] = mvs_read_port_cfg_data(mvi, i);
2453 static u32 mvs_is_sig_fis_received(u32 irq_status)
2455 return irq_status & PHYEV_SIG_FIS;
2458 static void mvs_update_wideport(struct mvs_info *mvi, int i)
2460 struct mvs_phy *phy = &mvi->phy[i];
2461 struct mvs_port *port = phy->port;
2464 for_each_phy(port->wide_port_phymap, no, j, mvi->chip->n_phy)
2466 mvs_write_port_cfg_addr(mvi, no, PHYR_WIDE_PORT);
2467 mvs_write_port_cfg_data(mvi, no,
2468 port->wide_port_phymap);
2470 mvs_write_port_cfg_addr(mvi, no, PHYR_WIDE_PORT);
2471 mvs_write_port_cfg_data(mvi, no, 0);
2475 static u32 mvs_is_phy_ready(struct mvs_info *mvi, int i)
2478 struct mvs_phy *phy = &mvi->phy[i];
2479 struct mvs_port *port;
2481 tmp = mvs_read_phy_ctl(mvi, i);
2483 if ((tmp & PHY_READY_MASK) && !(phy->irq_status & PHYEV_POOF)) {
2485 phy->phy_attached = 1;
2491 if (phy->phy_type & PORT_TYPE_SAS) {
2492 port->wide_port_phymap &= ~(1U << i);
2493 if (!port->wide_port_phymap)
2494 port->port_attached = 0;
2495 mvs_update_wideport(mvi, i);
2496 } else if (phy->phy_type & PORT_TYPE_SATA)
2497 port->port_attached = 0;
2498 mvs_free_reg_set(mvi, phy->port);
2500 phy->phy_attached = 0;
2501 phy->phy_type &= ~(PORT_TYPE_SAS | PORT_TYPE_SATA);
2506 static void mvs_update_phyinfo(struct mvs_info *mvi, int i,
2509 struct mvs_phy *phy = &mvi->phy[i];
2510 struct pci_dev *pdev = mvi->pdev;
2514 mvs_write_port_cfg_addr(mvi, i, PHYR_IDENTIFY);
2515 phy->dev_info = mvs_read_port_cfg_data(mvi, i);
2517 mvs_write_port_cfg_addr(mvi, i, PHYR_ADDR_HI);
2518 phy->dev_sas_addr = (u64) mvs_read_port_cfg_data(mvi, i) << 32;
2520 mvs_write_port_cfg_addr(mvi, i, PHYR_ADDR_LO);
2521 phy->dev_sas_addr |= mvs_read_port_cfg_data(mvi, i);
2524 phy->irq_status = mvs_read_port_irq_stat(mvi, i);
2525 phy->phy_status = mvs_is_phy_ready(mvi, i);
2528 if (phy->phy_status) {
2530 struct asd_sas_phy *sas_phy = mvi->sas.sas_phy[i];
2532 mvs_write_port_cfg_addr(mvi, i, PHYR_PHY_STAT);
2533 phy_st = mvs_read_port_cfg_data(mvi, i);
2536 (phy->phy_status & PHY_NEG_SPP_PHYS_LINK_RATE_MASK) >>
2537 PHY_NEG_SPP_PHYS_LINK_RATE_MASK_OFFSET;
2539 /* Updated attached_sas_addr */
2540 mvs_write_port_cfg_addr(mvi, i, PHYR_ATT_ADDR_HI);
2541 phy->att_dev_sas_addr =
2542 (u64) mvs_read_port_cfg_data(mvi, i) << 32;
2544 mvs_write_port_cfg_addr(mvi, i, PHYR_ATT_ADDR_LO);
2545 phy->att_dev_sas_addr |= mvs_read_port_cfg_data(mvi, i);
2547 dev_printk(KERN_DEBUG, &pdev->dev,
2548 "phy[%d] Get Attached Address 0x%llX ,"
2549 " SAS Address 0x%llX\n",
2550 i, phy->att_dev_sas_addr, phy->dev_sas_addr);
2551 dev_printk(KERN_DEBUG, &pdev->dev,
2552 "Rate = %x , type = %d\n",
2553 sas_phy->linkrate, phy->phy_type);
2557 * If the device is capable of supporting a wide port
2558 * on its phys, it may configure the phys as a wide port.
2560 if (phy->phy_type & PORT_TYPE_SAS)
2561 for (j = 0; j < mvi->chip->n_phy && j != i; ++j) {
2562 if ((mvi->phy[j].phy_attached) &&
2563 (mvi->phy[j].phy_type & PORT_TYPE_SAS))
2564 if (phy->att_dev_sas_addr ==
2565 mvi->phy[j].att_dev_sas_addr - 1) {
2566 phy->att_dev_sas_addr =
2567 mvi->phy[j].att_dev_sas_addr;
2574 tmp64 = cpu_to_be64(phy->att_dev_sas_addr);
2575 memcpy(sas_phy->attached_sas_addr, &tmp64, SAS_ADDR_SIZE);
2577 if (phy->phy_type & PORT_TYPE_SAS) {
2578 mvs_write_port_cfg_addr(mvi, i, PHYR_ATT_DEV_INFO);
2579 phy->att_dev_info = mvs_read_port_cfg_data(mvi, i);
2580 phy->identify.device_type =
2581 phy->att_dev_info & PORT_DEV_TYPE_MASK;
2583 if (phy->identify.device_type == SAS_END_DEV)
2584 phy->identify.target_port_protocols =
2586 else if (phy->identify.device_type != NO_DEVICE)
2587 phy->identify.target_port_protocols =
2589 if (phy_st & PHY_OOB_DTCTD)
2590 sas_phy->oob_mode = SAS_OOB_MODE;
2591 phy->frame_rcvd_size =
2592 sizeof(struct sas_identify_frame);
2593 } else if (phy->phy_type & PORT_TYPE_SATA) {
2594 phy->identify.target_port_protocols = SAS_PROTOCOL_STP;
2595 if (mvs_is_sig_fis_received(phy->irq_status)) {
2596 if (phy_st & PHY_OOB_DTCTD)
2597 sas_phy->oob_mode = SATA_OOB_MODE;
2598 phy->frame_rcvd_size =
2599 sizeof(struct dev_to_host_fis);
2600 mvs_get_d2h_reg(mvi, i,
2601 (void *)sas_phy->frame_rcvd);
2603 dev_printk(KERN_DEBUG, &pdev->dev,
2607 /* workaround for HW phy decoding error on 1.5g disk drive */
2608 mvs_write_port_vsr_addr(mvi, i, VSR_PHY_MODE6);
2609 tmp = mvs_read_port_vsr_data(mvi, i);
2610 if (((phy->phy_status & PHY_NEG_SPP_PHYS_LINK_RATE_MASK) >>
2611 PHY_NEG_SPP_PHYS_LINK_RATE_MASK_OFFSET) ==
2612 SAS_LINK_RATE_1_5_GBPS)
2613 tmp &= ~PHY_MODE6_DTL_SPEED;
2615 tmp |= PHY_MODE6_DTL_SPEED;
2616 mvs_write_port_vsr_data(mvi, i, tmp);
2620 mvs_write_port_irq_stat(mvi, i, phy->irq_status);
2623 static void mvs_port_formed(struct asd_sas_phy *sas_phy)
2625 struct sas_ha_struct *sas_ha = sas_phy->ha;
2626 struct mvs_info *mvi = sas_ha->lldd_ha;
2627 struct asd_sas_port *sas_port = sas_phy->port;
2628 struct mvs_phy *phy = sas_phy->lldd_phy;
2629 struct mvs_port *port = &mvi->port[sas_port->id];
2630 unsigned long flags;
2632 spin_lock_irqsave(&mvi->lock, flags);
2633 port->port_attached = 1;
2635 port->taskfileset = MVS_ID_NOT_MAPPED;
2636 if (phy->phy_type & PORT_TYPE_SAS) {
2637 port->wide_port_phymap = sas_port->phy_mask;
2638 mvs_update_wideport(mvi, sas_phy->id);
2640 spin_unlock_irqrestore(&mvi->lock, flags);
2643 static int __devinit mvs_hw_init(struct mvs_info *mvi)
2645 void __iomem *regs = mvi->regs;
2649 /* make sure interrupts are masked immediately (paranoia) */
2651 tmp = mr32(GBL_CTL);
2653 /* Reset Controller */
2654 if (!(tmp & HBA_RST)) {
2655 if (mvi->flags & MVF_PHY_PWR_FIX) {
2656 pci_read_config_dword(mvi->pdev, PCR_PHY_CTL, &tmp);
2657 tmp &= ~PCTL_PWR_ON;
2659 pci_write_config_dword(mvi->pdev, PCR_PHY_CTL, tmp);
2661 pci_read_config_dword(mvi->pdev, PCR_PHY_CTL2, &tmp);
2662 tmp &= ~PCTL_PWR_ON;
2664 pci_write_config_dword(mvi->pdev, PCR_PHY_CTL2, tmp);
2667 /* global reset, incl. COMRESET/H_RESET_N (self-clearing) */
2668 mw32_f(GBL_CTL, HBA_RST);
2671 /* wait for reset to finish; timeout is just a guess */
2676 if (!(mr32(GBL_CTL) & HBA_RST))
2679 if (mr32(GBL_CTL) & HBA_RST) {
2680 dev_printk(KERN_ERR, &mvi->pdev->dev, "HBA reset failed\n");
2685 /* make sure RST is set; HBA_RST /should/ have done that for us */
2687 if (cctl & CCTL_RST)
2690 mw32_f(CTL, cctl | CCTL_RST);
2692 /* write to device control _AND_ device status register? - A.C. */
2693 pci_read_config_dword(mvi->pdev, PCR_DEV_CTRL, &tmp);
2694 tmp &= ~PRD_REQ_MASK;
2695 tmp |= PRD_REQ_SIZE;
2696 pci_write_config_dword(mvi->pdev, PCR_DEV_CTRL, tmp);
2698 pci_read_config_dword(mvi->pdev, PCR_PHY_CTL, &tmp);
2701 pci_write_config_dword(mvi->pdev, PCR_PHY_CTL, tmp);
2703 pci_read_config_dword(mvi->pdev, PCR_PHY_CTL2, &tmp);
2706 pci_write_config_dword(mvi->pdev, PCR_PHY_CTL2, tmp);
2711 mw32(PCS, 0); /*MVS_PCS */
2715 mw32(CMD_LIST_LO, mvi->slot_dma);
2716 mw32(CMD_LIST_HI, (mvi->slot_dma >> 16) >> 16);
2718 mw32(RX_FIS_LO, mvi->rx_fis_dma);
2719 mw32(RX_FIS_HI, (mvi->rx_fis_dma >> 16) >> 16);
2721 mw32(TX_CFG, MVS_CHIP_SLOT_SZ);
2722 mw32(TX_LO, mvi->tx_dma);
2723 mw32(TX_HI, (mvi->tx_dma >> 16) >> 16);
2725 mw32(RX_CFG, MVS_RX_RING_SZ);
2726 mw32(RX_LO, mvi->rx_dma);
2727 mw32(RX_HI, (mvi->rx_dma >> 16) >> 16);
2729 /* enable auto port detection */
2730 mw32(GBL_PORT_TYPE, MODE_AUTO_DET_EN);
2732 /* init and reset phys */
2733 for (i = 0; i < mvi->chip->n_phy; i++) {
2734 /* FIXME: is this the correct dword order? */
2735 u32 lo = *((u32 *)&mvi->sas_addr[0]);
2736 u32 hi = *((u32 *)&mvi->sas_addr[4]);
2738 mvs_detect_porttype(mvi, i);
2740 /* set phy local SAS address */
2741 mvs_write_port_cfg_addr(mvi, i, PHYR_ADDR_LO);
2742 mvs_write_port_cfg_data(mvi, i, lo);
2743 mvs_write_port_cfg_addr(mvi, i, PHYR_ADDR_HI);
2744 mvs_write_port_cfg_data(mvi, i, hi);
2747 tmp = mvs_read_phy_ctl(mvi, i);
2749 mvs_write_phy_ctl(mvi, i, tmp);
2754 for (i = 0; i < mvi->chip->n_phy; i++) {
2755 /* clear phy int status */
2756 tmp = mvs_read_port_irq_stat(mvi, i);
2757 tmp &= ~PHYEV_SIG_FIS;
2758 mvs_write_port_irq_stat(mvi, i, tmp);
2760 /* set phy int mask */
2761 tmp = PHYEV_RDY_CH | PHYEV_BROAD_CH | PHYEV_UNASSOC_FIS |
2762 PHYEV_ID_DONE | PHYEV_DEC_ERR;
2763 mvs_write_port_irq_mask(mvi, i, tmp);
2766 mvs_update_phyinfo(mvi, i, 1);
2767 mvs_enable_xmt(mvi, i);
2770 /* FIXME: update wide port bitmaps */
2772 /* little endian for open address and command table, etc. */
2774 * it seems that ( from the spec ) turning on big-endian won't
2775 * do us any good on big-endian machines, need further confirmation
2778 cctl |= CCTL_ENDIAN_CMD;
2779 cctl |= CCTL_ENDIAN_DATA;
2780 cctl &= ~CCTL_ENDIAN_OPEN;
2781 cctl |= CCTL_ENDIAN_RSP;
2784 /* reset CMD queue */
2788 /* interrupt coalescing may cause missing HW interrput in some case,
2789 * and the max count is 0x1ff, while our max slot is 0x200,
2790 * it will make count 0.
2793 mw32(INT_COAL, tmp);
2796 mw32(INT_COAL_TMOUT, tmp);
2798 /* ladies and gentlemen, start your engines */
2800 mw32(TX_CFG, MVS_CHIP_SLOT_SZ | TX_EN);
2801 mw32(RX_CFG, MVS_RX_RING_SZ | RX_EN);
2802 /* enable CMD/CMPL_Q/RESP mode */
2803 mw32(PCS, PCS_SATA_RETRY | PCS_FIS_RX_EN | PCS_CMD_EN);
2805 /* re-enable interrupts globally */
2806 mvs_hba_interrupt_enable(mvi);
2808 /* enable completion queue interrupt */
2809 tmp = (CINT_PORT_MASK | CINT_DONE | CINT_MEM);
2810 mw32(INT_MASK, tmp);
2815 static void __devinit mvs_print_info(struct mvs_info *mvi)
2817 struct pci_dev *pdev = mvi->pdev;
2818 static int printed_version;
2820 if (!printed_version++)
2821 dev_printk(KERN_INFO, &pdev->dev, "version " DRV_VERSION "\n");
2823 dev_printk(KERN_INFO, &pdev->dev, "%u phys, addr %llx\n",
2824 mvi->chip->n_phy, SAS_ADDR(mvi->sas_addr));
2827 static int __devinit mvs_pci_init(struct pci_dev *pdev,
2828 const struct pci_device_id *ent)
2831 struct mvs_info *mvi;
2832 irq_handler_t irq_handler = mvs_interrupt;
2834 rc = pci_enable_device(pdev);
2838 pci_set_master(pdev);
2840 rc = pci_request_regions(pdev, DRV_NAME);
2842 goto err_out_disable;
2844 rc = pci_go_64(pdev);
2846 goto err_out_regions;
2848 mvi = mvs_alloc(pdev, ent);
2851 goto err_out_regions;
2854 rc = mvs_hw_init(mvi);
2858 #ifndef MVS_DISABLE_MSI
2859 if (!pci_enable_msi(pdev)) {
2861 void __iomem *regs = mvi->regs;
2862 mvi->flags |= MVF_MSI;
2863 irq_handler = mvs_msi_interrupt;
2865 mw32(PCS, tmp | PCS_SELF_CLEAR);
2869 rc = request_irq(pdev->irq, irq_handler, IRQF_SHARED, DRV_NAME, mvi);
2873 rc = scsi_add_host(mvi->shost, &pdev->dev);
2877 rc = sas_register_ha(&mvi->sas);
2881 pci_set_drvdata(pdev, mvi);
2883 mvs_print_info(mvi);
2885 scsi_scan_host(mvi->shost);
2890 scsi_remove_host(mvi->shost);
2892 free_irq(pdev->irq, mvi);
2894 if (mvi->flags |= MVF_MSI)
2895 pci_disable_msi(pdev);
2899 pci_release_regions(pdev);
2901 pci_disable_device(pdev);
2905 static void __devexit mvs_pci_remove(struct pci_dev *pdev)
2907 struct mvs_info *mvi = pci_get_drvdata(pdev);
2909 pci_set_drvdata(pdev, NULL);
2912 sas_unregister_ha(&mvi->sas);
2913 mvs_hba_interrupt_disable(mvi);
2914 sas_remove_host(mvi->shost);
2915 scsi_remove_host(mvi->shost);
2917 free_irq(pdev->irq, mvi);
2918 if (mvi->flags & MVF_MSI)
2919 pci_disable_msi(pdev);
2921 pci_release_regions(pdev);
2923 pci_disable_device(pdev);
2926 static struct sas_domain_function_template mvs_transport_ops = {
2927 .lldd_execute_task = mvs_task_exec,
2928 .lldd_control_phy = mvs_phy_control,
2929 .lldd_abort_task = mvs_task_abort,
2930 .lldd_port_formed = mvs_port_formed
2933 static struct pci_device_id __devinitdata mvs_pci_table[] = {
2934 { PCI_VDEVICE(MARVELL, 0x6320), chip_6320 },
2935 { PCI_VDEVICE(MARVELL, 0x6340), chip_6440 },
2936 { PCI_VDEVICE(MARVELL, 0x6440), chip_6440 },
2937 { PCI_VDEVICE(MARVELL, 0x6480), chip_6480 },
2939 { } /* terminate list */
2942 static struct pci_driver mvs_pci_driver = {
2944 .id_table = mvs_pci_table,
2945 .probe = mvs_pci_init,
2946 .remove = __devexit_p(mvs_pci_remove),
2949 static int __init mvs_init(void)
2953 mvs_stt = sas_domain_attach_transport(&mvs_transport_ops);
2957 rc = pci_register_driver(&mvs_pci_driver);
2964 sas_release_transport(mvs_stt);
2968 static void __exit mvs_exit(void)
2970 pci_unregister_driver(&mvs_pci_driver);
2971 sas_release_transport(mvs_stt);
2974 module_init(mvs_init);
2975 module_exit(mvs_exit);
2977 MODULE_AUTHOR("Jeff Garzik <jgarzik@pobox.com>");
2978 MODULE_DESCRIPTION("Marvell 88SE6440 SAS/SATA controller driver");
2979 MODULE_VERSION(DRV_VERSION);
2980 MODULE_LICENSE("GPL");
2981 MODULE_DEVICE_TABLE(pci, mvs_pci_table);