Ramkrishna Vepa | 1132413 | 2009-04-01 18:14:58 +0000 | [diff] [blame] | 1 | /****************************************************************************** |
| 2 | * This software may be used and distributed according to the terms of |
| 3 | * the GNU General Public License (GPL), incorporated herein by reference. |
| 4 | * Drivers based on or derived from this code fall under the GPL and must |
| 5 | * retain the authorship, copyright and license notice. This file is not |
| 6 | * a complete program and may only be used when the entire operating |
| 7 | * system is licensed under the GPL. |
| 8 | * See the file COPYING in this distribution for more information. |
| 9 | * |
Jon Mason | 926bd90 | 2010-07-15 08:47:26 +0000 | [diff] [blame] | 10 | * vxge-traffic.c: Driver for Exar Corp's X3100 Series 10GbE PCIe I/O |
Ramkrishna Vepa | 1132413 | 2009-04-01 18:14:58 +0000 | [diff] [blame] | 11 | * Virtualized Server Adapter. |
Jon Mason | 926bd90 | 2010-07-15 08:47:26 +0000 | [diff] [blame] | 12 | * Copyright(c) 2002-2010 Exar Corp. |
Ramkrishna Vepa | 1132413 | 2009-04-01 18:14:58 +0000 | [diff] [blame] | 13 | ******************************************************************************/ |
| 14 | #include <linux/etherdevice.h> |
Paul Gortmaker | 70c7160 | 2011-05-22 16:47:17 -0400 | [diff] [blame] | 15 | #include <linux/prefetch.h> |
Ramkrishna Vepa | 1132413 | 2009-04-01 18:14:58 +0000 | [diff] [blame] | 16 | |
| 17 | #include "vxge-traffic.h" |
| 18 | #include "vxge-config.h" |
| 19 | #include "vxge-main.h" |
| 20 | |
| 21 | /* |
| 22 | * vxge_hw_vpath_intr_enable - Enable vpath interrupts. |
| 23 | * @vp: Virtual Path handle. |
| 24 | * |
| 25 | * Enable vpath interrupts. The function is to be executed the last in |
| 26 | * vpath initialization sequence. |
| 27 | * |
| 28 | * See also: vxge_hw_vpath_intr_disable() |
| 29 | */ |
| 30 | enum vxge_hw_status vxge_hw_vpath_intr_enable(struct __vxge_hw_vpath_handle *vp) |
| 31 | { |
| 32 | u64 val64; |
| 33 | |
| 34 | struct __vxge_hw_virtualpath *vpath; |
| 35 | struct vxge_hw_vpath_reg __iomem *vp_reg; |
| 36 | enum vxge_hw_status status = VXGE_HW_OK; |
| 37 | if (vp == NULL) { |
| 38 | status = VXGE_HW_ERR_INVALID_HANDLE; |
| 39 | goto exit; |
| 40 | } |
| 41 | |
| 42 | vpath = vp->vpath; |
| 43 | |
| 44 | if (vpath->vp_open == VXGE_HW_VP_NOT_OPEN) { |
| 45 | status = VXGE_HW_ERR_VPATH_NOT_OPEN; |
| 46 | goto exit; |
| 47 | } |
| 48 | |
| 49 | vp_reg = vpath->vp_reg; |
| 50 | |
| 51 | writeq(VXGE_HW_INTR_MASK_ALL, &vp_reg->kdfcctl_errors_reg); |
| 52 | |
| 53 | __vxge_hw_pio_mem_write32_upper((u32)VXGE_HW_INTR_MASK_ALL, |
| 54 | &vp_reg->general_errors_reg); |
| 55 | |
| 56 | __vxge_hw_pio_mem_write32_upper((u32)VXGE_HW_INTR_MASK_ALL, |
| 57 | &vp_reg->pci_config_errors_reg); |
| 58 | |
| 59 | __vxge_hw_pio_mem_write32_upper((u32)VXGE_HW_INTR_MASK_ALL, |
| 60 | &vp_reg->mrpcim_to_vpath_alarm_reg); |
| 61 | |
| 62 | __vxge_hw_pio_mem_write32_upper((u32)VXGE_HW_INTR_MASK_ALL, |
| 63 | &vp_reg->srpcim_to_vpath_alarm_reg); |
| 64 | |
| 65 | __vxge_hw_pio_mem_write32_upper((u32)VXGE_HW_INTR_MASK_ALL, |
| 66 | &vp_reg->vpath_ppif_int_status); |
| 67 | |
| 68 | __vxge_hw_pio_mem_write32_upper((u32)VXGE_HW_INTR_MASK_ALL, |
| 69 | &vp_reg->srpcim_msg_to_vpath_reg); |
| 70 | |
| 71 | __vxge_hw_pio_mem_write32_upper((u32)VXGE_HW_INTR_MASK_ALL, |
| 72 | &vp_reg->vpath_pcipif_int_status); |
| 73 | |
| 74 | __vxge_hw_pio_mem_write32_upper((u32)VXGE_HW_INTR_MASK_ALL, |
| 75 | &vp_reg->prc_alarm_reg); |
| 76 | |
| 77 | __vxge_hw_pio_mem_write32_upper((u32)VXGE_HW_INTR_MASK_ALL, |
| 78 | &vp_reg->wrdma_alarm_status); |
| 79 | |
| 80 | __vxge_hw_pio_mem_write32_upper((u32)VXGE_HW_INTR_MASK_ALL, |
| 81 | &vp_reg->asic_ntwk_vp_err_reg); |
| 82 | |
| 83 | __vxge_hw_pio_mem_write32_upper((u32)VXGE_HW_INTR_MASK_ALL, |
| 84 | &vp_reg->xgmac_vp_int_status); |
| 85 | |
| 86 | val64 = readq(&vp_reg->vpath_general_int_status); |
| 87 | |
| 88 | /* Mask unwanted interrupts */ |
| 89 | |
| 90 | __vxge_hw_pio_mem_write32_upper((u32)VXGE_HW_INTR_MASK_ALL, |
| 91 | &vp_reg->vpath_pcipif_int_mask); |
| 92 | |
| 93 | __vxge_hw_pio_mem_write32_upper((u32)VXGE_HW_INTR_MASK_ALL, |
| 94 | &vp_reg->srpcim_msg_to_vpath_mask); |
| 95 | |
| 96 | __vxge_hw_pio_mem_write32_upper((u32)VXGE_HW_INTR_MASK_ALL, |
| 97 | &vp_reg->srpcim_to_vpath_alarm_mask); |
| 98 | |
| 99 | __vxge_hw_pio_mem_write32_upper((u32)VXGE_HW_INTR_MASK_ALL, |
| 100 | &vp_reg->mrpcim_to_vpath_alarm_mask); |
| 101 | |
| 102 | __vxge_hw_pio_mem_write32_upper((u32)VXGE_HW_INTR_MASK_ALL, |
| 103 | &vp_reg->pci_config_errors_mask); |
| 104 | |
| 105 | /* Unmask the individual interrupts */ |
| 106 | |
| 107 | writeq((u32)vxge_bVALn((VXGE_HW_GENERAL_ERRORS_REG_DBLGEN_FIFO1_OVRFLOW| |
| 108 | VXGE_HW_GENERAL_ERRORS_REG_DBLGEN_FIFO2_OVRFLOW| |
| 109 | VXGE_HW_GENERAL_ERRORS_REG_STATSB_DROP_TIMEOUT_REQ| |
| 110 | VXGE_HW_GENERAL_ERRORS_REG_STATSB_PIF_CHAIN_ERR), 0, 32), |
| 111 | &vp_reg->general_errors_mask); |
| 112 | |
| 113 | __vxge_hw_pio_mem_write32_upper( |
| 114 | (u32)vxge_bVALn((VXGE_HW_KDFCCTL_ERRORS_REG_KDFCCTL_FIFO1_OVRWR| |
| 115 | VXGE_HW_KDFCCTL_ERRORS_REG_KDFCCTL_FIFO2_OVRWR| |
| 116 | VXGE_HW_KDFCCTL_ERRORS_REG_KDFCCTL_FIFO1_POISON| |
| 117 | VXGE_HW_KDFCCTL_ERRORS_REG_KDFCCTL_FIFO2_POISON| |
| 118 | VXGE_HW_KDFCCTL_ERRORS_REG_KDFCCTL_FIFO1_DMA_ERR| |
roel kluin | d77dd8d | 2009-05-15 10:19:51 +0000 | [diff] [blame] | 119 | VXGE_HW_KDFCCTL_ERRORS_REG_KDFCCTL_FIFO2_DMA_ERR), 0, 32), |
Ramkrishna Vepa | 1132413 | 2009-04-01 18:14:58 +0000 | [diff] [blame] | 120 | &vp_reg->kdfcctl_errors_mask); |
| 121 | |
| 122 | __vxge_hw_pio_mem_write32_upper(0, &vp_reg->vpath_ppif_int_mask); |
| 123 | |
| 124 | __vxge_hw_pio_mem_write32_upper( |
| 125 | (u32)vxge_bVALn(VXGE_HW_PRC_ALARM_REG_PRC_RING_BUMP, 0, 32), |
| 126 | &vp_reg->prc_alarm_mask); |
| 127 | |
| 128 | __vxge_hw_pio_mem_write32_upper(0, &vp_reg->wrdma_alarm_mask); |
| 129 | __vxge_hw_pio_mem_write32_upper(0, &vp_reg->xgmac_vp_int_mask); |
| 130 | |
| 131 | if (vpath->hldev->first_vp_id != vpath->vp_id) |
| 132 | __vxge_hw_pio_mem_write32_upper((u32)VXGE_HW_INTR_MASK_ALL, |
| 133 | &vp_reg->asic_ntwk_vp_err_mask); |
| 134 | else |
| 135 | __vxge_hw_pio_mem_write32_upper((u32)vxge_bVALn(( |
| 136 | VXGE_HW_ASIC_NTWK_VP_ERR_REG_XMACJ_NTWK_REAFFIRMED_FAULT | |
| 137 | VXGE_HW_ASIC_NTWK_VP_ERR_REG_XMACJ_NTWK_REAFFIRMED_OK), 0, 32), |
| 138 | &vp_reg->asic_ntwk_vp_err_mask); |
| 139 | |
| 140 | __vxge_hw_pio_mem_write32_upper(0, |
| 141 | &vp_reg->vpath_general_int_mask); |
| 142 | exit: |
| 143 | return status; |
| 144 | |
| 145 | } |
| 146 | |
| 147 | /* |
| 148 | * vxge_hw_vpath_intr_disable - Disable vpath interrupts. |
| 149 | * @vp: Virtual Path handle. |
| 150 | * |
| 151 | * Disable vpath interrupts. The function is to be executed the last in |
| 152 | * vpath initialization sequence. |
| 153 | * |
| 154 | * See also: vxge_hw_vpath_intr_enable() |
| 155 | */ |
| 156 | enum vxge_hw_status vxge_hw_vpath_intr_disable( |
| 157 | struct __vxge_hw_vpath_handle *vp) |
| 158 | { |
| 159 | u64 val64; |
| 160 | |
| 161 | struct __vxge_hw_virtualpath *vpath; |
| 162 | enum vxge_hw_status status = VXGE_HW_OK; |
| 163 | struct vxge_hw_vpath_reg __iomem *vp_reg; |
| 164 | if (vp == NULL) { |
| 165 | status = VXGE_HW_ERR_INVALID_HANDLE; |
| 166 | goto exit; |
| 167 | } |
| 168 | |
| 169 | vpath = vp->vpath; |
| 170 | |
| 171 | if (vpath->vp_open == VXGE_HW_VP_NOT_OPEN) { |
| 172 | status = VXGE_HW_ERR_VPATH_NOT_OPEN; |
| 173 | goto exit; |
| 174 | } |
| 175 | vp_reg = vpath->vp_reg; |
| 176 | |
| 177 | __vxge_hw_pio_mem_write32_upper( |
| 178 | (u32)VXGE_HW_INTR_MASK_ALL, |
| 179 | &vp_reg->vpath_general_int_mask); |
| 180 | |
| 181 | val64 = VXGE_HW_TIM_CLR_INT_EN_VP(1 << (16 - vpath->vp_id)); |
| 182 | |
| 183 | writeq(VXGE_HW_INTR_MASK_ALL, &vp_reg->kdfcctl_errors_mask); |
| 184 | |
| 185 | __vxge_hw_pio_mem_write32_upper((u32)VXGE_HW_INTR_MASK_ALL, |
| 186 | &vp_reg->general_errors_mask); |
| 187 | |
| 188 | __vxge_hw_pio_mem_write32_upper((u32)VXGE_HW_INTR_MASK_ALL, |
| 189 | &vp_reg->pci_config_errors_mask); |
| 190 | |
| 191 | __vxge_hw_pio_mem_write32_upper((u32)VXGE_HW_INTR_MASK_ALL, |
| 192 | &vp_reg->mrpcim_to_vpath_alarm_mask); |
| 193 | |
| 194 | __vxge_hw_pio_mem_write32_upper((u32)VXGE_HW_INTR_MASK_ALL, |
| 195 | &vp_reg->srpcim_to_vpath_alarm_mask); |
| 196 | |
| 197 | __vxge_hw_pio_mem_write32_upper((u32)VXGE_HW_INTR_MASK_ALL, |
| 198 | &vp_reg->vpath_ppif_int_mask); |
| 199 | |
| 200 | __vxge_hw_pio_mem_write32_upper((u32)VXGE_HW_INTR_MASK_ALL, |
| 201 | &vp_reg->srpcim_msg_to_vpath_mask); |
| 202 | |
| 203 | __vxge_hw_pio_mem_write32_upper((u32)VXGE_HW_INTR_MASK_ALL, |
| 204 | &vp_reg->vpath_pcipif_int_mask); |
| 205 | |
| 206 | __vxge_hw_pio_mem_write32_upper((u32)VXGE_HW_INTR_MASK_ALL, |
| 207 | &vp_reg->wrdma_alarm_mask); |
| 208 | |
| 209 | __vxge_hw_pio_mem_write32_upper((u32)VXGE_HW_INTR_MASK_ALL, |
| 210 | &vp_reg->prc_alarm_mask); |
| 211 | |
| 212 | __vxge_hw_pio_mem_write32_upper((u32)VXGE_HW_INTR_MASK_ALL, |
| 213 | &vp_reg->xgmac_vp_int_mask); |
| 214 | |
| 215 | __vxge_hw_pio_mem_write32_upper((u32)VXGE_HW_INTR_MASK_ALL, |
| 216 | &vp_reg->asic_ntwk_vp_err_mask); |
| 217 | |
| 218 | exit: |
| 219 | return status; |
| 220 | } |
| 221 | |
Jon Mason | 16fded7 | 2011-01-18 15:02:21 +0000 | [diff] [blame] | 222 | void vxge_hw_vpath_tti_ci_set(struct __vxge_hw_fifo *fifo) |
| 223 | { |
| 224 | struct vxge_hw_vpath_reg __iomem *vp_reg; |
| 225 | struct vxge_hw_vp_config *config; |
| 226 | u64 val64; |
| 227 | |
| 228 | if (fifo->config->enable != VXGE_HW_FIFO_ENABLE) |
| 229 | return; |
| 230 | |
| 231 | vp_reg = fifo->vp_reg; |
| 232 | config = container_of(fifo->config, struct vxge_hw_vp_config, fifo); |
| 233 | |
| 234 | if (config->tti.timer_ci_en != VXGE_HW_TIM_TIMER_CI_ENABLE) { |
| 235 | config->tti.timer_ci_en = VXGE_HW_TIM_TIMER_CI_ENABLE; |
| 236 | val64 = readq(&vp_reg->tim_cfg1_int_num[VXGE_HW_VPATH_INTR_TX]); |
| 237 | val64 |= VXGE_HW_TIM_CFG1_INT_NUM_TIMER_CI; |
| 238 | fifo->tim_tti_cfg1_saved = val64; |
| 239 | writeq(val64, &vp_reg->tim_cfg1_int_num[VXGE_HW_VPATH_INTR_TX]); |
| 240 | } |
| 241 | } |
| 242 | |
| 243 | void vxge_hw_vpath_dynamic_rti_ci_set(struct __vxge_hw_ring *ring) |
| 244 | { |
| 245 | u64 val64 = ring->tim_rti_cfg1_saved; |
| 246 | |
| 247 | val64 |= VXGE_HW_TIM_CFG1_INT_NUM_TIMER_CI; |
| 248 | ring->tim_rti_cfg1_saved = val64; |
| 249 | writeq(val64, &ring->vp_reg->tim_cfg1_int_num[VXGE_HW_VPATH_INTR_RX]); |
| 250 | } |
| 251 | |
| 252 | void vxge_hw_vpath_dynamic_tti_rtimer_set(struct __vxge_hw_fifo *fifo) |
| 253 | { |
| 254 | u64 val64 = fifo->tim_tti_cfg3_saved; |
| 255 | u64 timer = (fifo->rtimer * 1000) / 272; |
| 256 | |
| 257 | val64 &= ~VXGE_HW_TIM_CFG3_INT_NUM_RTIMER_VAL(0x3ffffff); |
| 258 | if (timer) |
| 259 | val64 |= VXGE_HW_TIM_CFG3_INT_NUM_RTIMER_VAL(timer) | |
| 260 | VXGE_HW_TIM_CFG3_INT_NUM_RTIMER_EVENT_SF(5); |
| 261 | |
| 262 | writeq(val64, &fifo->vp_reg->tim_cfg3_int_num[VXGE_HW_VPATH_INTR_TX]); |
| 263 | /* tti_cfg3_saved is not updated again because it is |
| 264 | * initialized at one place only - init time. |
| 265 | */ |
| 266 | } |
| 267 | |
| 268 | void vxge_hw_vpath_dynamic_rti_rtimer_set(struct __vxge_hw_ring *ring) |
| 269 | { |
| 270 | u64 val64 = ring->tim_rti_cfg3_saved; |
| 271 | u64 timer = (ring->rtimer * 1000) / 272; |
| 272 | |
| 273 | val64 &= ~VXGE_HW_TIM_CFG3_INT_NUM_RTIMER_VAL(0x3ffffff); |
| 274 | if (timer) |
| 275 | val64 |= VXGE_HW_TIM_CFG3_INT_NUM_RTIMER_VAL(timer) | |
| 276 | VXGE_HW_TIM_CFG3_INT_NUM_RTIMER_EVENT_SF(4); |
| 277 | |
| 278 | writeq(val64, &ring->vp_reg->tim_cfg3_int_num[VXGE_HW_VPATH_INTR_RX]); |
| 279 | /* rti_cfg3_saved is not updated again because it is |
| 280 | * initialized at one place only - init time. |
| 281 | */ |
| 282 | } |
| 283 | |
Ramkrishna Vepa | 1132413 | 2009-04-01 18:14:58 +0000 | [diff] [blame] | 284 | /** |
| 285 | * vxge_hw_channel_msix_mask - Mask MSIX Vector. |
| 286 | * @channeh: Channel for rx or tx handle |
| 287 | * @msix_id: MSIX ID |
| 288 | * |
| 289 | * The function masks the msix interrupt for the given msix_id |
| 290 | * |
| 291 | * Returns: 0 |
| 292 | */ |
| 293 | void vxge_hw_channel_msix_mask(struct __vxge_hw_channel *channel, int msix_id) |
| 294 | { |
| 295 | |
| 296 | __vxge_hw_pio_mem_write32_upper( |
Sreenivasa Honnur | b59c9457 | 2010-03-28 22:11:41 +0000 | [diff] [blame] | 297 | (u32)vxge_bVALn(vxge_mBIT(msix_id >> 2), 0, 32), |
Ramkrishna Vepa | 1132413 | 2009-04-01 18:14:58 +0000 | [diff] [blame] | 298 | &channel->common_reg->set_msix_mask_vect[msix_id%4]); |
Ramkrishna Vepa | 1132413 | 2009-04-01 18:14:58 +0000 | [diff] [blame] | 299 | } |
| 300 | |
| 301 | /** |
| 302 | * vxge_hw_channel_msix_unmask - Unmask the MSIX Vector. |
| 303 | * @channeh: Channel for rx or tx handle |
| 304 | * @msix_id: MSI ID |
| 305 | * |
| 306 | * The function unmasks the msix interrupt for the given msix_id |
| 307 | * |
| 308 | * Returns: 0 |
| 309 | */ |
| 310 | void |
| 311 | vxge_hw_channel_msix_unmask(struct __vxge_hw_channel *channel, int msix_id) |
| 312 | { |
| 313 | |
| 314 | __vxge_hw_pio_mem_write32_upper( |
Sreenivasa Honnur | b59c9457 | 2010-03-28 22:11:41 +0000 | [diff] [blame] | 315 | (u32)vxge_bVALn(vxge_mBIT(msix_id >> 2), 0, 32), |
Ramkrishna Vepa | 1132413 | 2009-04-01 18:14:58 +0000 | [diff] [blame] | 316 | &channel->common_reg->clear_msix_mask_vect[msix_id%4]); |
Ramkrishna Vepa | 1132413 | 2009-04-01 18:14:58 +0000 | [diff] [blame] | 317 | } |
| 318 | |
| 319 | /** |
Jon Mason | 16fded7 | 2011-01-18 15:02:21 +0000 | [diff] [blame] | 320 | * vxge_hw_channel_msix_clear - Unmask the MSIX Vector. |
| 321 | * @channel: Channel for rx or tx handle |
| 322 | * @msix_id: MSI ID |
| 323 | * |
| 324 | * The function unmasks the msix interrupt for the given msix_id |
| 325 | * if configured in MSIX oneshot mode |
| 326 | * |
| 327 | * Returns: 0 |
| 328 | */ |
| 329 | void vxge_hw_channel_msix_clear(struct __vxge_hw_channel *channel, int msix_id) |
| 330 | { |
| 331 | __vxge_hw_pio_mem_write32_upper( |
| 332 | (u32) vxge_bVALn(vxge_mBIT(msix_id >> 2), 0, 32), |
| 333 | &channel->common_reg->clr_msix_one_shot_vec[msix_id % 4]); |
| 334 | } |
| 335 | |
| 336 | /** |
Ramkrishna Vepa | 1132413 | 2009-04-01 18:14:58 +0000 | [diff] [blame] | 337 | * vxge_hw_device_set_intr_type - Updates the configuration |
| 338 | * with new interrupt type. |
| 339 | * @hldev: HW device handle. |
| 340 | * @intr_mode: New interrupt type |
| 341 | */ |
| 342 | u32 vxge_hw_device_set_intr_type(struct __vxge_hw_device *hldev, u32 intr_mode) |
| 343 | { |
| 344 | |
| 345 | if ((intr_mode != VXGE_HW_INTR_MODE_IRQLINE) && |
| 346 | (intr_mode != VXGE_HW_INTR_MODE_MSIX) && |
| 347 | (intr_mode != VXGE_HW_INTR_MODE_MSIX_ONE_SHOT) && |
| 348 | (intr_mode != VXGE_HW_INTR_MODE_DEF)) |
| 349 | intr_mode = VXGE_HW_INTR_MODE_IRQLINE; |
| 350 | |
| 351 | hldev->config.intr_mode = intr_mode; |
| 352 | return intr_mode; |
| 353 | } |
| 354 | |
| 355 | /** |
| 356 | * vxge_hw_device_intr_enable - Enable interrupts. |
| 357 | * @hldev: HW device handle. |
| 358 | * @op: One of the enum vxge_hw_device_intr enumerated values specifying |
| 359 | * the type(s) of interrupts to enable. |
| 360 | * |
| 361 | * Enable Titan interrupts. The function is to be executed the last in |
| 362 | * Titan initialization sequence. |
| 363 | * |
| 364 | * See also: vxge_hw_device_intr_disable() |
| 365 | */ |
| 366 | void vxge_hw_device_intr_enable(struct __vxge_hw_device *hldev) |
| 367 | { |
| 368 | u32 i; |
| 369 | u64 val64; |
| 370 | u32 val32; |
| 371 | |
Sreenivasa Honnur | eb5f10c | 2009-10-05 01:57:29 +0000 | [diff] [blame] | 372 | vxge_hw_device_mask_all(hldev); |
| 373 | |
Ramkrishna Vepa | 1132413 | 2009-04-01 18:14:58 +0000 | [diff] [blame] | 374 | for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++) { |
| 375 | |
| 376 | if (!(hldev->vpaths_deployed & vxge_mBIT(i))) |
| 377 | continue; |
| 378 | |
| 379 | vxge_hw_vpath_intr_enable( |
| 380 | VXGE_HW_VIRTUAL_PATH_HANDLE(&hldev->virtual_paths[i])); |
| 381 | } |
| 382 | |
| 383 | if (hldev->config.intr_mode == VXGE_HW_INTR_MODE_IRQLINE) { |
| 384 | val64 = hldev->tim_int_mask0[VXGE_HW_VPATH_INTR_TX] | |
| 385 | hldev->tim_int_mask0[VXGE_HW_VPATH_INTR_RX]; |
| 386 | |
| 387 | if (val64 != 0) { |
| 388 | writeq(val64, &hldev->common_reg->tim_int_status0); |
| 389 | |
| 390 | writeq(~val64, &hldev->common_reg->tim_int_mask0); |
| 391 | } |
| 392 | |
| 393 | val32 = hldev->tim_int_mask1[VXGE_HW_VPATH_INTR_TX] | |
| 394 | hldev->tim_int_mask1[VXGE_HW_VPATH_INTR_RX]; |
| 395 | |
| 396 | if (val32 != 0) { |
| 397 | __vxge_hw_pio_mem_write32_upper(val32, |
| 398 | &hldev->common_reg->tim_int_status1); |
| 399 | |
| 400 | __vxge_hw_pio_mem_write32_upper(~val32, |
| 401 | &hldev->common_reg->tim_int_mask1); |
| 402 | } |
| 403 | } |
| 404 | |
| 405 | val64 = readq(&hldev->common_reg->titan_general_int_status); |
| 406 | |
| 407 | vxge_hw_device_unmask_all(hldev); |
Ramkrishna Vepa | 1132413 | 2009-04-01 18:14:58 +0000 | [diff] [blame] | 408 | } |
| 409 | |
| 410 | /** |
| 411 | * vxge_hw_device_intr_disable - Disable Titan interrupts. |
| 412 | * @hldev: HW device handle. |
| 413 | * @op: One of the enum vxge_hw_device_intr enumerated values specifying |
| 414 | * the type(s) of interrupts to disable. |
| 415 | * |
| 416 | * Disable Titan interrupts. |
| 417 | * |
| 418 | * See also: vxge_hw_device_intr_enable() |
| 419 | */ |
| 420 | void vxge_hw_device_intr_disable(struct __vxge_hw_device *hldev) |
| 421 | { |
| 422 | u32 i; |
| 423 | |
| 424 | vxge_hw_device_mask_all(hldev); |
| 425 | |
| 426 | /* mask all the tim interrupts */ |
| 427 | writeq(VXGE_HW_INTR_MASK_ALL, &hldev->common_reg->tim_int_mask0); |
| 428 | __vxge_hw_pio_mem_write32_upper(VXGE_HW_DEFAULT_32, |
| 429 | &hldev->common_reg->tim_int_mask1); |
| 430 | |
| 431 | for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++) { |
| 432 | |
| 433 | if (!(hldev->vpaths_deployed & vxge_mBIT(i))) |
| 434 | continue; |
| 435 | |
| 436 | vxge_hw_vpath_intr_disable( |
| 437 | VXGE_HW_VIRTUAL_PATH_HANDLE(&hldev->virtual_paths[i])); |
| 438 | } |
Ramkrishna Vepa | 1132413 | 2009-04-01 18:14:58 +0000 | [diff] [blame] | 439 | } |
| 440 | |
| 441 | /** |
| 442 | * vxge_hw_device_mask_all - Mask all device interrupts. |
| 443 | * @hldev: HW device handle. |
| 444 | * |
| 445 | * Mask all device interrupts. |
| 446 | * |
| 447 | * See also: vxge_hw_device_unmask_all() |
| 448 | */ |
| 449 | void vxge_hw_device_mask_all(struct __vxge_hw_device *hldev) |
| 450 | { |
| 451 | u64 val64; |
| 452 | |
| 453 | val64 = VXGE_HW_TITAN_MASK_ALL_INT_ALARM | |
| 454 | VXGE_HW_TITAN_MASK_ALL_INT_TRAFFIC; |
| 455 | |
| 456 | __vxge_hw_pio_mem_write32_upper((u32)vxge_bVALn(val64, 0, 32), |
| 457 | &hldev->common_reg->titan_mask_all_int); |
Ramkrishna Vepa | 1132413 | 2009-04-01 18:14:58 +0000 | [diff] [blame] | 458 | } |
| 459 | |
| 460 | /** |
| 461 | * vxge_hw_device_unmask_all - Unmask all device interrupts. |
| 462 | * @hldev: HW device handle. |
| 463 | * |
| 464 | * Unmask all device interrupts. |
| 465 | * |
| 466 | * See also: vxge_hw_device_mask_all() |
| 467 | */ |
| 468 | void vxge_hw_device_unmask_all(struct __vxge_hw_device *hldev) |
| 469 | { |
| 470 | u64 val64 = 0; |
| 471 | |
| 472 | if (hldev->config.intr_mode == VXGE_HW_INTR_MODE_IRQLINE) |
| 473 | val64 = VXGE_HW_TITAN_MASK_ALL_INT_TRAFFIC; |
| 474 | |
| 475 | __vxge_hw_pio_mem_write32_upper((u32)vxge_bVALn(val64, 0, 32), |
| 476 | &hldev->common_reg->titan_mask_all_int); |
Ramkrishna Vepa | 1132413 | 2009-04-01 18:14:58 +0000 | [diff] [blame] | 477 | } |
| 478 | |
| 479 | /** |
| 480 | * vxge_hw_device_flush_io - Flush io writes. |
| 481 | * @hldev: HW device handle. |
| 482 | * |
| 483 | * The function performs a read operation to flush io writes. |
| 484 | * |
| 485 | * Returns: void |
| 486 | */ |
| 487 | void vxge_hw_device_flush_io(struct __vxge_hw_device *hldev) |
| 488 | { |
| 489 | u32 val32; |
| 490 | |
| 491 | val32 = readl(&hldev->common_reg->titan_general_int_status); |
| 492 | } |
| 493 | |
| 494 | /** |
Jon Mason | 528f727 | 2010-12-10 14:02:56 +0000 | [diff] [blame] | 495 | * __vxge_hw_device_handle_error - Handle error |
| 496 | * @hldev: HW device |
| 497 | * @vp_id: Vpath Id |
| 498 | * @type: Error type. Please see enum vxge_hw_event{} |
| 499 | * |
| 500 | * Handle error. |
| 501 | */ |
| 502 | static enum vxge_hw_status |
| 503 | __vxge_hw_device_handle_error(struct __vxge_hw_device *hldev, u32 vp_id, |
| 504 | enum vxge_hw_event type) |
| 505 | { |
| 506 | switch (type) { |
| 507 | case VXGE_HW_EVENT_UNKNOWN: |
| 508 | break; |
| 509 | case VXGE_HW_EVENT_RESET_START: |
| 510 | case VXGE_HW_EVENT_RESET_COMPLETE: |
| 511 | case VXGE_HW_EVENT_LINK_DOWN: |
| 512 | case VXGE_HW_EVENT_LINK_UP: |
| 513 | goto out; |
| 514 | case VXGE_HW_EVENT_ALARM_CLEARED: |
| 515 | goto out; |
| 516 | case VXGE_HW_EVENT_ECCERR: |
| 517 | case VXGE_HW_EVENT_MRPCIM_ECCERR: |
| 518 | goto out; |
| 519 | case VXGE_HW_EVENT_FIFO_ERR: |
| 520 | case VXGE_HW_EVENT_VPATH_ERR: |
| 521 | case VXGE_HW_EVENT_CRITICAL_ERR: |
| 522 | case VXGE_HW_EVENT_SERR: |
| 523 | break; |
| 524 | case VXGE_HW_EVENT_SRPCIM_SERR: |
| 525 | case VXGE_HW_EVENT_MRPCIM_SERR: |
| 526 | goto out; |
| 527 | case VXGE_HW_EVENT_SLOT_FREEZE: |
| 528 | break; |
| 529 | default: |
| 530 | vxge_assert(0); |
| 531 | goto out; |
| 532 | } |
| 533 | |
| 534 | /* notify driver */ |
stephen hemminger | 956a206 | 2011-09-16 11:10:01 +0000 | [diff] [blame] | 535 | if (hldev->uld_callbacks->crit_err) |
Joe Perches | 6469933 | 2012-06-04 12:44:16 +0000 | [diff] [blame] | 536 | hldev->uld_callbacks->crit_err(hldev, |
Jon Mason | 528f727 | 2010-12-10 14:02:56 +0000 | [diff] [blame] | 537 | type, vp_id); |
| 538 | out: |
| 539 | |
| 540 | return VXGE_HW_OK; |
| 541 | } |
| 542 | |
| 543 | /* |
| 544 | * __vxge_hw_device_handle_link_down_ind |
| 545 | * @hldev: HW device handle. |
| 546 | * |
| 547 | * Link down indication handler. The function is invoked by HW when |
| 548 | * Titan indicates that the link is down. |
| 549 | */ |
| 550 | static enum vxge_hw_status |
| 551 | __vxge_hw_device_handle_link_down_ind(struct __vxge_hw_device *hldev) |
| 552 | { |
| 553 | /* |
| 554 | * If the previous link state is not down, return. |
| 555 | */ |
| 556 | if (hldev->link_state == VXGE_HW_LINK_DOWN) |
| 557 | goto exit; |
| 558 | |
| 559 | hldev->link_state = VXGE_HW_LINK_DOWN; |
| 560 | |
| 561 | /* notify driver */ |
stephen hemminger | 956a206 | 2011-09-16 11:10:01 +0000 | [diff] [blame] | 562 | if (hldev->uld_callbacks->link_down) |
| 563 | hldev->uld_callbacks->link_down(hldev); |
Jon Mason | 528f727 | 2010-12-10 14:02:56 +0000 | [diff] [blame] | 564 | exit: |
| 565 | return VXGE_HW_OK; |
| 566 | } |
| 567 | |
| 568 | /* |
| 569 | * __vxge_hw_device_handle_link_up_ind |
| 570 | * @hldev: HW device handle. |
| 571 | * |
| 572 | * Link up indication handler. The function is invoked by HW when |
| 573 | * Titan indicates that the link is up for programmable amount of time. |
| 574 | */ |
| 575 | static enum vxge_hw_status |
| 576 | __vxge_hw_device_handle_link_up_ind(struct __vxge_hw_device *hldev) |
| 577 | { |
| 578 | /* |
| 579 | * If the previous link state is not down, return. |
| 580 | */ |
| 581 | if (hldev->link_state == VXGE_HW_LINK_UP) |
| 582 | goto exit; |
| 583 | |
| 584 | hldev->link_state = VXGE_HW_LINK_UP; |
| 585 | |
| 586 | /* notify driver */ |
stephen hemminger | 956a206 | 2011-09-16 11:10:01 +0000 | [diff] [blame] | 587 | if (hldev->uld_callbacks->link_up) |
| 588 | hldev->uld_callbacks->link_up(hldev); |
Jon Mason | 528f727 | 2010-12-10 14:02:56 +0000 | [diff] [blame] | 589 | exit: |
| 590 | return VXGE_HW_OK; |
| 591 | } |
| 592 | |
| 593 | /* |
| 594 | * __vxge_hw_vpath_alarm_process - Process Alarms. |
| 595 | * @vpath: Virtual Path. |
| 596 | * @skip_alarms: Do not clear the alarms |
| 597 | * |
| 598 | * Process vpath alarms. |
| 599 | * |
| 600 | */ |
| 601 | static enum vxge_hw_status |
| 602 | __vxge_hw_vpath_alarm_process(struct __vxge_hw_virtualpath *vpath, |
| 603 | u32 skip_alarms) |
| 604 | { |
| 605 | u64 val64; |
| 606 | u64 alarm_status; |
| 607 | u64 pic_status; |
| 608 | struct __vxge_hw_device *hldev = NULL; |
| 609 | enum vxge_hw_event alarm_event = VXGE_HW_EVENT_UNKNOWN; |
| 610 | u64 mask64; |
| 611 | struct vxge_hw_vpath_stats_sw_info *sw_stats; |
| 612 | struct vxge_hw_vpath_reg __iomem *vp_reg; |
| 613 | |
| 614 | if (vpath == NULL) { |
| 615 | alarm_event = VXGE_HW_SET_LEVEL(VXGE_HW_EVENT_UNKNOWN, |
| 616 | alarm_event); |
| 617 | goto out2; |
| 618 | } |
| 619 | |
| 620 | hldev = vpath->hldev; |
| 621 | vp_reg = vpath->vp_reg; |
| 622 | alarm_status = readq(&vp_reg->vpath_general_int_status); |
| 623 | |
| 624 | if (alarm_status == VXGE_HW_ALL_FOXES) { |
| 625 | alarm_event = VXGE_HW_SET_LEVEL(VXGE_HW_EVENT_SLOT_FREEZE, |
| 626 | alarm_event); |
| 627 | goto out; |
| 628 | } |
| 629 | |
| 630 | sw_stats = vpath->sw_stats; |
| 631 | |
| 632 | if (alarm_status & ~( |
| 633 | VXGE_HW_VPATH_GENERAL_INT_STATUS_PIC_INT | |
| 634 | VXGE_HW_VPATH_GENERAL_INT_STATUS_PCI_INT | |
| 635 | VXGE_HW_VPATH_GENERAL_INT_STATUS_WRDMA_INT | |
| 636 | VXGE_HW_VPATH_GENERAL_INT_STATUS_XMAC_INT)) { |
| 637 | sw_stats->error_stats.unknown_alarms++; |
| 638 | |
| 639 | alarm_event = VXGE_HW_SET_LEVEL(VXGE_HW_EVENT_UNKNOWN, |
| 640 | alarm_event); |
| 641 | goto out; |
| 642 | } |
| 643 | |
| 644 | if (alarm_status & VXGE_HW_VPATH_GENERAL_INT_STATUS_XMAC_INT) { |
| 645 | |
| 646 | val64 = readq(&vp_reg->xgmac_vp_int_status); |
| 647 | |
| 648 | if (val64 & |
| 649 | VXGE_HW_XGMAC_VP_INT_STATUS_ASIC_NTWK_VP_ERR_ASIC_NTWK_VP_INT) { |
| 650 | |
| 651 | val64 = readq(&vp_reg->asic_ntwk_vp_err_reg); |
| 652 | |
| 653 | if (((val64 & |
| 654 | VXGE_HW_ASIC_NW_VP_ERR_REG_XMACJ_STN_FLT) && |
| 655 | (!(val64 & |
| 656 | VXGE_HW_ASIC_NW_VP_ERR_REG_XMACJ_STN_OK))) || |
| 657 | ((val64 & |
| 658 | VXGE_HW_ASIC_NW_VP_ERR_REG_XMACJ_STN_FLT_OCCURR) && |
| 659 | (!(val64 & |
| 660 | VXGE_HW_ASIC_NW_VP_ERR_REG_XMACJ_STN_OK_OCCURR) |
| 661 | ))) { |
| 662 | sw_stats->error_stats.network_sustained_fault++; |
| 663 | |
| 664 | writeq( |
| 665 | VXGE_HW_ASIC_NW_VP_ERR_REG_XMACJ_STN_FLT, |
| 666 | &vp_reg->asic_ntwk_vp_err_mask); |
| 667 | |
| 668 | __vxge_hw_device_handle_link_down_ind(hldev); |
| 669 | alarm_event = VXGE_HW_SET_LEVEL( |
| 670 | VXGE_HW_EVENT_LINK_DOWN, alarm_event); |
| 671 | } |
| 672 | |
| 673 | if (((val64 & |
| 674 | VXGE_HW_ASIC_NW_VP_ERR_REG_XMACJ_STN_OK) && |
| 675 | (!(val64 & |
| 676 | VXGE_HW_ASIC_NW_VP_ERR_REG_XMACJ_STN_FLT))) || |
| 677 | ((val64 & |
| 678 | VXGE_HW_ASIC_NW_VP_ERR_REG_XMACJ_STN_OK_OCCURR) && |
| 679 | (!(val64 & |
| 680 | VXGE_HW_ASIC_NW_VP_ERR_REG_XMACJ_STN_FLT_OCCURR) |
| 681 | ))) { |
| 682 | |
| 683 | sw_stats->error_stats.network_sustained_ok++; |
| 684 | |
| 685 | writeq( |
| 686 | VXGE_HW_ASIC_NW_VP_ERR_REG_XMACJ_STN_OK, |
| 687 | &vp_reg->asic_ntwk_vp_err_mask); |
| 688 | |
| 689 | __vxge_hw_device_handle_link_up_ind(hldev); |
| 690 | alarm_event = VXGE_HW_SET_LEVEL( |
| 691 | VXGE_HW_EVENT_LINK_UP, alarm_event); |
| 692 | } |
| 693 | |
| 694 | writeq(VXGE_HW_INTR_MASK_ALL, |
| 695 | &vp_reg->asic_ntwk_vp_err_reg); |
| 696 | |
| 697 | alarm_event = VXGE_HW_SET_LEVEL( |
| 698 | VXGE_HW_EVENT_ALARM_CLEARED, alarm_event); |
| 699 | |
| 700 | if (skip_alarms) |
| 701 | return VXGE_HW_OK; |
| 702 | } |
| 703 | } |
| 704 | |
| 705 | if (alarm_status & VXGE_HW_VPATH_GENERAL_INT_STATUS_PIC_INT) { |
| 706 | |
| 707 | pic_status = readq(&vp_reg->vpath_ppif_int_status); |
| 708 | |
| 709 | if (pic_status & |
| 710 | VXGE_HW_VPATH_PPIF_INT_STATUS_GENERAL_ERRORS_GENERAL_INT) { |
| 711 | |
| 712 | val64 = readq(&vp_reg->general_errors_reg); |
| 713 | mask64 = readq(&vp_reg->general_errors_mask); |
| 714 | |
| 715 | if ((val64 & |
| 716 | VXGE_HW_GENERAL_ERRORS_REG_INI_SERR_DET) & |
| 717 | ~mask64) { |
| 718 | sw_stats->error_stats.ini_serr_det++; |
| 719 | |
| 720 | alarm_event = VXGE_HW_SET_LEVEL( |
| 721 | VXGE_HW_EVENT_SERR, alarm_event); |
| 722 | } |
| 723 | |
| 724 | if ((val64 & |
| 725 | VXGE_HW_GENERAL_ERRORS_REG_DBLGEN_FIFO0_OVRFLOW) & |
| 726 | ~mask64) { |
| 727 | sw_stats->error_stats.dblgen_fifo0_overflow++; |
| 728 | |
| 729 | alarm_event = VXGE_HW_SET_LEVEL( |
| 730 | VXGE_HW_EVENT_FIFO_ERR, alarm_event); |
| 731 | } |
| 732 | |
| 733 | if ((val64 & |
| 734 | VXGE_HW_GENERAL_ERRORS_REG_STATSB_PIF_CHAIN_ERR) & |
| 735 | ~mask64) |
| 736 | sw_stats->error_stats.statsb_pif_chain_error++; |
| 737 | |
| 738 | if ((val64 & |
| 739 | VXGE_HW_GENERAL_ERRORS_REG_STATSB_DROP_TIMEOUT_REQ) & |
| 740 | ~mask64) |
| 741 | sw_stats->error_stats.statsb_drop_timeout++; |
| 742 | |
| 743 | if ((val64 & |
| 744 | VXGE_HW_GENERAL_ERRORS_REG_TGT_ILLEGAL_ACCESS) & |
| 745 | ~mask64) |
| 746 | sw_stats->error_stats.target_illegal_access++; |
| 747 | |
| 748 | if (!skip_alarms) { |
| 749 | writeq(VXGE_HW_INTR_MASK_ALL, |
| 750 | &vp_reg->general_errors_reg); |
| 751 | alarm_event = VXGE_HW_SET_LEVEL( |
| 752 | VXGE_HW_EVENT_ALARM_CLEARED, |
| 753 | alarm_event); |
| 754 | } |
| 755 | } |
| 756 | |
| 757 | if (pic_status & |
| 758 | VXGE_HW_VPATH_PPIF_INT_STATUS_KDFCCTL_ERRORS_KDFCCTL_INT) { |
| 759 | |
| 760 | val64 = readq(&vp_reg->kdfcctl_errors_reg); |
| 761 | mask64 = readq(&vp_reg->kdfcctl_errors_mask); |
| 762 | |
| 763 | if ((val64 & |
| 764 | VXGE_HW_KDFCCTL_ERRORS_REG_KDFCCTL_FIFO0_OVRWR) & |
| 765 | ~mask64) { |
| 766 | sw_stats->error_stats.kdfcctl_fifo0_overwrite++; |
| 767 | |
| 768 | alarm_event = VXGE_HW_SET_LEVEL( |
| 769 | VXGE_HW_EVENT_FIFO_ERR, |
| 770 | alarm_event); |
| 771 | } |
| 772 | |
| 773 | if ((val64 & |
| 774 | VXGE_HW_KDFCCTL_ERRORS_REG_KDFCCTL_FIFO0_POISON) & |
| 775 | ~mask64) { |
| 776 | sw_stats->error_stats.kdfcctl_fifo0_poison++; |
| 777 | |
| 778 | alarm_event = VXGE_HW_SET_LEVEL( |
| 779 | VXGE_HW_EVENT_FIFO_ERR, |
| 780 | alarm_event); |
| 781 | } |
| 782 | |
| 783 | if ((val64 & |
| 784 | VXGE_HW_KDFCCTL_ERRORS_REG_KDFCCTL_FIFO0_DMA_ERR) & |
| 785 | ~mask64) { |
| 786 | sw_stats->error_stats.kdfcctl_fifo0_dma_error++; |
| 787 | |
| 788 | alarm_event = VXGE_HW_SET_LEVEL( |
| 789 | VXGE_HW_EVENT_FIFO_ERR, |
| 790 | alarm_event); |
| 791 | } |
| 792 | |
| 793 | if (!skip_alarms) { |
| 794 | writeq(VXGE_HW_INTR_MASK_ALL, |
| 795 | &vp_reg->kdfcctl_errors_reg); |
| 796 | alarm_event = VXGE_HW_SET_LEVEL( |
| 797 | VXGE_HW_EVENT_ALARM_CLEARED, |
| 798 | alarm_event); |
| 799 | } |
| 800 | } |
| 801 | |
| 802 | } |
| 803 | |
| 804 | if (alarm_status & VXGE_HW_VPATH_GENERAL_INT_STATUS_WRDMA_INT) { |
| 805 | |
| 806 | val64 = readq(&vp_reg->wrdma_alarm_status); |
| 807 | |
| 808 | if (val64 & VXGE_HW_WRDMA_ALARM_STATUS_PRC_ALARM_PRC_INT) { |
| 809 | |
| 810 | val64 = readq(&vp_reg->prc_alarm_reg); |
| 811 | mask64 = readq(&vp_reg->prc_alarm_mask); |
| 812 | |
| 813 | if ((val64 & VXGE_HW_PRC_ALARM_REG_PRC_RING_BUMP)& |
| 814 | ~mask64) |
| 815 | sw_stats->error_stats.prc_ring_bumps++; |
| 816 | |
| 817 | if ((val64 & VXGE_HW_PRC_ALARM_REG_PRC_RXDCM_SC_ERR) & |
| 818 | ~mask64) { |
| 819 | sw_stats->error_stats.prc_rxdcm_sc_err++; |
| 820 | |
| 821 | alarm_event = VXGE_HW_SET_LEVEL( |
| 822 | VXGE_HW_EVENT_VPATH_ERR, |
| 823 | alarm_event); |
| 824 | } |
| 825 | |
| 826 | if ((val64 & VXGE_HW_PRC_ALARM_REG_PRC_RXDCM_SC_ABORT) |
| 827 | & ~mask64) { |
| 828 | sw_stats->error_stats.prc_rxdcm_sc_abort++; |
| 829 | |
| 830 | alarm_event = VXGE_HW_SET_LEVEL( |
| 831 | VXGE_HW_EVENT_VPATH_ERR, |
| 832 | alarm_event); |
| 833 | } |
| 834 | |
| 835 | if ((val64 & VXGE_HW_PRC_ALARM_REG_PRC_QUANTA_SIZE_ERR) |
| 836 | & ~mask64) { |
| 837 | sw_stats->error_stats.prc_quanta_size_err++; |
| 838 | |
| 839 | alarm_event = VXGE_HW_SET_LEVEL( |
| 840 | VXGE_HW_EVENT_VPATH_ERR, |
| 841 | alarm_event); |
| 842 | } |
| 843 | |
| 844 | if (!skip_alarms) { |
| 845 | writeq(VXGE_HW_INTR_MASK_ALL, |
| 846 | &vp_reg->prc_alarm_reg); |
| 847 | alarm_event = VXGE_HW_SET_LEVEL( |
| 848 | VXGE_HW_EVENT_ALARM_CLEARED, |
| 849 | alarm_event); |
| 850 | } |
| 851 | } |
| 852 | } |
| 853 | out: |
| 854 | hldev->stats.sw_dev_err_stats.vpath_alarms++; |
| 855 | out2: |
| 856 | if ((alarm_event == VXGE_HW_EVENT_ALARM_CLEARED) || |
| 857 | (alarm_event == VXGE_HW_EVENT_UNKNOWN)) |
| 858 | return VXGE_HW_OK; |
| 859 | |
| 860 | __vxge_hw_device_handle_error(hldev, vpath->vp_id, alarm_event); |
| 861 | |
| 862 | if (alarm_event == VXGE_HW_EVENT_SERR) |
| 863 | return VXGE_HW_ERR_CRITICAL; |
| 864 | |
| 865 | return (alarm_event == VXGE_HW_EVENT_SLOT_FREEZE) ? |
| 866 | VXGE_HW_ERR_SLOT_FREEZE : |
| 867 | (alarm_event == VXGE_HW_EVENT_FIFO_ERR) ? VXGE_HW_ERR_FIFO : |
| 868 | VXGE_HW_ERR_VPATH; |
| 869 | } |
| 870 | |
| 871 | /** |
Ramkrishna Vepa | 1132413 | 2009-04-01 18:14:58 +0000 | [diff] [blame] | 872 | * vxge_hw_device_begin_irq - Begin IRQ processing. |
| 873 | * @hldev: HW device handle. |
| 874 | * @skip_alarms: Do not clear the alarms |
| 875 | * @reason: "Reason" for the interrupt, the value of Titan's |
| 876 | * general_int_status register. |
| 877 | * |
| 878 | * The function performs two actions, It first checks whether (shared IRQ) the |
| 879 | * interrupt was raised by the device. Next, it masks the device interrupts. |
| 880 | * |
| 881 | * Note: |
| 882 | * vxge_hw_device_begin_irq() does not flush MMIO writes through the |
| 883 | * bridge. Therefore, two back-to-back interrupts are potentially possible. |
| 884 | * |
| 885 | * Returns: 0, if the interrupt is not "ours" (note that in this case the |
| 886 | * device remain enabled). |
| 887 | * Otherwise, vxge_hw_device_begin_irq() returns 64bit general adapter |
| 888 | * status. |
| 889 | */ |
| 890 | enum vxge_hw_status vxge_hw_device_begin_irq(struct __vxge_hw_device *hldev, |
| 891 | u32 skip_alarms, u64 *reason) |
| 892 | { |
| 893 | u32 i; |
| 894 | u64 val64; |
| 895 | u64 adapter_status; |
| 896 | u64 vpath_mask; |
| 897 | enum vxge_hw_status ret = VXGE_HW_OK; |
| 898 | |
| 899 | val64 = readq(&hldev->common_reg->titan_general_int_status); |
| 900 | |
| 901 | if (unlikely(!val64)) { |
| 902 | /* not Titan interrupt */ |
| 903 | *reason = 0; |
| 904 | ret = VXGE_HW_ERR_WRONG_IRQ; |
| 905 | goto exit; |
| 906 | } |
| 907 | |
| 908 | if (unlikely(val64 == VXGE_HW_ALL_FOXES)) { |
| 909 | |
| 910 | adapter_status = readq(&hldev->common_reg->adapter_status); |
| 911 | |
| 912 | if (adapter_status == VXGE_HW_ALL_FOXES) { |
| 913 | |
| 914 | __vxge_hw_device_handle_error(hldev, |
| 915 | NULL_VPID, VXGE_HW_EVENT_SLOT_FREEZE); |
| 916 | *reason = 0; |
| 917 | ret = VXGE_HW_ERR_SLOT_FREEZE; |
| 918 | goto exit; |
| 919 | } |
| 920 | } |
| 921 | |
| 922 | hldev->stats.sw_dev_info_stats.total_intr_cnt++; |
| 923 | |
| 924 | *reason = val64; |
| 925 | |
| 926 | vpath_mask = hldev->vpaths_deployed >> |
| 927 | (64 - VXGE_HW_MAX_VIRTUAL_PATHS); |
| 928 | |
| 929 | if (val64 & |
| 930 | VXGE_HW_TITAN_GENERAL_INT_STATUS_VPATH_TRAFFIC_INT(vpath_mask)) { |
| 931 | hldev->stats.sw_dev_info_stats.traffic_intr_cnt++; |
| 932 | |
| 933 | return VXGE_HW_OK; |
| 934 | } |
| 935 | |
| 936 | hldev->stats.sw_dev_info_stats.not_traffic_intr_cnt++; |
| 937 | |
| 938 | if (unlikely(val64 & |
| 939 | VXGE_HW_TITAN_GENERAL_INT_STATUS_VPATH_ALARM_INT)) { |
| 940 | |
| 941 | enum vxge_hw_status error_level = VXGE_HW_OK; |
| 942 | |
| 943 | hldev->stats.sw_dev_err_stats.vpath_alarms++; |
| 944 | |
| 945 | for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++) { |
| 946 | |
| 947 | if (!(hldev->vpaths_deployed & vxge_mBIT(i))) |
| 948 | continue; |
| 949 | |
| 950 | ret = __vxge_hw_vpath_alarm_process( |
| 951 | &hldev->virtual_paths[i], skip_alarms); |
| 952 | |
David S. Miller | a4fe91e | 2009-04-29 17:53:20 -0700 | [diff] [blame] | 953 | error_level = VXGE_HW_SET_LEVEL(ret, error_level); |
Ramkrishna Vepa | 1132413 | 2009-04-01 18:14:58 +0000 | [diff] [blame] | 954 | |
| 955 | if (unlikely((ret == VXGE_HW_ERR_CRITICAL) || |
| 956 | (ret == VXGE_HW_ERR_SLOT_FREEZE))) |
| 957 | break; |
| 958 | } |
| 959 | |
| 960 | ret = error_level; |
| 961 | } |
| 962 | exit: |
| 963 | return ret; |
| 964 | } |
| 965 | |
Ramkrishna Vepa | 1132413 | 2009-04-01 18:14:58 +0000 | [diff] [blame] | 966 | /** |
| 967 | * vxge_hw_device_clear_tx_rx - Acknowledge (that is, clear) the |
| 968 | * condition that has caused the Tx and RX interrupt. |
| 969 | * @hldev: HW device. |
| 970 | * |
| 971 | * Acknowledge (that is, clear) the condition that has caused |
| 972 | * the Tx and Rx interrupt. |
| 973 | * See also: vxge_hw_device_begin_irq(), |
| 974 | * vxge_hw_device_mask_tx_rx(), vxge_hw_device_unmask_tx_rx(). |
| 975 | */ |
| 976 | void vxge_hw_device_clear_tx_rx(struct __vxge_hw_device *hldev) |
| 977 | { |
| 978 | |
| 979 | if ((hldev->tim_int_mask0[VXGE_HW_VPATH_INTR_TX] != 0) || |
| 980 | (hldev->tim_int_mask0[VXGE_HW_VPATH_INTR_RX] != 0)) { |
| 981 | writeq((hldev->tim_int_mask0[VXGE_HW_VPATH_INTR_TX] | |
| 982 | hldev->tim_int_mask0[VXGE_HW_VPATH_INTR_RX]), |
| 983 | &hldev->common_reg->tim_int_status0); |
| 984 | } |
| 985 | |
| 986 | if ((hldev->tim_int_mask1[VXGE_HW_VPATH_INTR_TX] != 0) || |
| 987 | (hldev->tim_int_mask1[VXGE_HW_VPATH_INTR_RX] != 0)) { |
| 988 | __vxge_hw_pio_mem_write32_upper( |
| 989 | (hldev->tim_int_mask1[VXGE_HW_VPATH_INTR_TX] | |
| 990 | hldev->tim_int_mask1[VXGE_HW_VPATH_INTR_RX]), |
| 991 | &hldev->common_reg->tim_int_status1); |
| 992 | } |
Ramkrishna Vepa | 1132413 | 2009-04-01 18:14:58 +0000 | [diff] [blame] | 993 | } |
| 994 | |
| 995 | /* |
| 996 | * vxge_hw_channel_dtr_alloc - Allocate a dtr from the channel |
| 997 | * @channel: Channel |
| 998 | * @dtrh: Buffer to return the DTR pointer |
| 999 | * |
| 1000 | * Allocates a dtr from the reserve array. If the reserve array is empty, |
| 1001 | * it swaps the reserve and free arrays. |
| 1002 | * |
| 1003 | */ |
stephen hemminger | 42821a5 | 2010-10-21 07:50:53 +0000 | [diff] [blame] | 1004 | static enum vxge_hw_status |
Ramkrishna Vepa | 1132413 | 2009-04-01 18:14:58 +0000 | [diff] [blame] | 1005 | vxge_hw_channel_dtr_alloc(struct __vxge_hw_channel *channel, void **dtrh) |
| 1006 | { |
Ramkrishna Vepa | 1132413 | 2009-04-01 18:14:58 +0000 | [diff] [blame] | 1007 | if (channel->reserve_ptr - channel->reserve_top > 0) { |
| 1008 | _alloc_after_swap: |
| 1009 | *dtrh = channel->reserve_arr[--channel->reserve_ptr]; |
| 1010 | |
| 1011 | return VXGE_HW_OK; |
| 1012 | } |
| 1013 | |
| 1014 | /* switch between empty and full arrays */ |
| 1015 | |
| 1016 | /* the idea behind such a design is that by having free and reserved |
| 1017 | * arrays separated we basically separated irq and non-irq parts. |
| 1018 | * i.e. no additional lock need to be done when we free a resource */ |
| 1019 | |
| 1020 | if (channel->length - channel->free_ptr > 0) { |
Fabian Frederick | f60a8b3 | 2015-06-10 18:33:26 +0200 | [diff] [blame] | 1021 | swap(channel->reserve_arr, channel->free_arr); |
Ramkrishna Vepa | 1132413 | 2009-04-01 18:14:58 +0000 | [diff] [blame] | 1022 | channel->reserve_ptr = channel->length; |
| 1023 | channel->reserve_top = channel->free_ptr; |
| 1024 | channel->free_ptr = channel->length; |
| 1025 | |
| 1026 | channel->stats->reserve_free_swaps_cnt++; |
| 1027 | |
| 1028 | goto _alloc_after_swap; |
| 1029 | } |
| 1030 | |
| 1031 | channel->stats->full_cnt++; |
| 1032 | |
| 1033 | *dtrh = NULL; |
| 1034 | return VXGE_HW_INF_OUT_OF_DESCRIPTORS; |
| 1035 | } |
| 1036 | |
| 1037 | /* |
| 1038 | * vxge_hw_channel_dtr_post - Post a dtr to the channel |
| 1039 | * @channelh: Channel |
| 1040 | * @dtrh: DTR pointer |
| 1041 | * |
| 1042 | * Posts a dtr to work array. |
| 1043 | * |
| 1044 | */ |
Jon Mason | 528f727 | 2010-12-10 14:02:56 +0000 | [diff] [blame] | 1045 | static void |
| 1046 | vxge_hw_channel_dtr_post(struct __vxge_hw_channel *channel, void *dtrh) |
Ramkrishna Vepa | 1132413 | 2009-04-01 18:14:58 +0000 | [diff] [blame] | 1047 | { |
| 1048 | vxge_assert(channel->work_arr[channel->post_index] == NULL); |
| 1049 | |
| 1050 | channel->work_arr[channel->post_index++] = dtrh; |
| 1051 | |
| 1052 | /* wrap-around */ |
| 1053 | if (channel->post_index == channel->length) |
| 1054 | channel->post_index = 0; |
| 1055 | } |
| 1056 | |
| 1057 | /* |
| 1058 | * vxge_hw_channel_dtr_try_complete - Returns next completed dtr |
| 1059 | * @channel: Channel |
| 1060 | * @dtr: Buffer to return the next completed DTR pointer |
| 1061 | * |
| 1062 | * Returns the next completed dtr with out removing it from work array |
| 1063 | * |
| 1064 | */ |
| 1065 | void |
| 1066 | vxge_hw_channel_dtr_try_complete(struct __vxge_hw_channel *channel, void **dtrh) |
| 1067 | { |
| 1068 | vxge_assert(channel->compl_index < channel->length); |
| 1069 | |
| 1070 | *dtrh = channel->work_arr[channel->compl_index]; |
Benjamin LaHaise | 3f23e43 | 2009-08-04 10:21:39 +0000 | [diff] [blame] | 1071 | prefetch(*dtrh); |
Ramkrishna Vepa | 1132413 | 2009-04-01 18:14:58 +0000 | [diff] [blame] | 1072 | } |
| 1073 | |
| 1074 | /* |
| 1075 | * vxge_hw_channel_dtr_complete - Removes next completed dtr from the work array |
| 1076 | * @channel: Channel handle |
| 1077 | * |
| 1078 | * Removes the next completed dtr from work array |
| 1079 | * |
| 1080 | */ |
| 1081 | void vxge_hw_channel_dtr_complete(struct __vxge_hw_channel *channel) |
| 1082 | { |
| 1083 | channel->work_arr[channel->compl_index] = NULL; |
| 1084 | |
| 1085 | /* wrap-around */ |
| 1086 | if (++channel->compl_index == channel->length) |
| 1087 | channel->compl_index = 0; |
| 1088 | |
| 1089 | channel->stats->total_compl_cnt++; |
| 1090 | } |
| 1091 | |
| 1092 | /* |
| 1093 | * vxge_hw_channel_dtr_free - Frees a dtr |
| 1094 | * @channel: Channel handle |
| 1095 | * @dtr: DTR pointer |
| 1096 | * |
| 1097 | * Returns the dtr to free array |
| 1098 | * |
| 1099 | */ |
| 1100 | void vxge_hw_channel_dtr_free(struct __vxge_hw_channel *channel, void *dtrh) |
| 1101 | { |
| 1102 | channel->free_arr[--channel->free_ptr] = dtrh; |
| 1103 | } |
| 1104 | |
| 1105 | /* |
| 1106 | * vxge_hw_channel_dtr_count |
| 1107 | * @channel: Channel handle. Obtained via vxge_hw_channel_open(). |
| 1108 | * |
Lucas De Marchi | 25985ed | 2011-03-30 22:57:33 -0300 | [diff] [blame] | 1109 | * Retrieve number of DTRs available. This function can not be called |
Ramkrishna Vepa | 1132413 | 2009-04-01 18:14:58 +0000 | [diff] [blame] | 1110 | * from data path. ring_initial_replenishi() is the only user. |
| 1111 | */ |
| 1112 | int vxge_hw_channel_dtr_count(struct __vxge_hw_channel *channel) |
| 1113 | { |
| 1114 | return (channel->reserve_ptr - channel->reserve_top) + |
| 1115 | (channel->length - channel->free_ptr); |
| 1116 | } |
| 1117 | |
| 1118 | /** |
| 1119 | * vxge_hw_ring_rxd_reserve - Reserve ring descriptor. |
| 1120 | * @ring: Handle to the ring object used for receive |
| 1121 | * @rxdh: Reserved descriptor. On success HW fills this "out" parameter |
| 1122 | * with a valid handle. |
| 1123 | * |
| 1124 | * Reserve Rx descriptor for the subsequent filling-in driver |
| 1125 | * and posting on the corresponding channel (@channelh) |
| 1126 | * via vxge_hw_ring_rxd_post(). |
| 1127 | * |
| 1128 | * Returns: VXGE_HW_OK - success. |
| 1129 | * VXGE_HW_INF_OUT_OF_DESCRIPTORS - Currently no descriptors available. |
| 1130 | * |
| 1131 | */ |
| 1132 | enum vxge_hw_status vxge_hw_ring_rxd_reserve(struct __vxge_hw_ring *ring, |
| 1133 | void **rxdh) |
| 1134 | { |
| 1135 | enum vxge_hw_status status; |
| 1136 | struct __vxge_hw_channel *channel; |
| 1137 | |
| 1138 | channel = &ring->channel; |
| 1139 | |
| 1140 | status = vxge_hw_channel_dtr_alloc(channel, rxdh); |
| 1141 | |
| 1142 | if (status == VXGE_HW_OK) { |
| 1143 | struct vxge_hw_ring_rxd_1 *rxdp = |
| 1144 | (struct vxge_hw_ring_rxd_1 *)*rxdh; |
| 1145 | |
| 1146 | rxdp->control_0 = rxdp->control_1 = 0; |
| 1147 | } |
| 1148 | |
| 1149 | return status; |
| 1150 | } |
| 1151 | |
| 1152 | /** |
| 1153 | * vxge_hw_ring_rxd_free - Free descriptor. |
| 1154 | * @ring: Handle to the ring object used for receive |
| 1155 | * @rxdh: Descriptor handle. |
| 1156 | * |
| 1157 | * Free the reserved descriptor. This operation is "symmetrical" to |
| 1158 | * vxge_hw_ring_rxd_reserve. The "free-ing" completes the descriptor's |
| 1159 | * lifecycle. |
| 1160 | * |
| 1161 | * After free-ing (see vxge_hw_ring_rxd_free()) the descriptor again can |
| 1162 | * be: |
| 1163 | * |
| 1164 | * - reserved (vxge_hw_ring_rxd_reserve); |
| 1165 | * |
| 1166 | * - posted (vxge_hw_ring_rxd_post); |
| 1167 | * |
| 1168 | * - completed (vxge_hw_ring_rxd_next_completed); |
| 1169 | * |
| 1170 | * - and recycled again (vxge_hw_ring_rxd_free). |
| 1171 | * |
| 1172 | * For alternative state transitions and more details please refer to |
| 1173 | * the design doc. |
| 1174 | * |
| 1175 | */ |
| 1176 | void vxge_hw_ring_rxd_free(struct __vxge_hw_ring *ring, void *rxdh) |
| 1177 | { |
| 1178 | struct __vxge_hw_channel *channel; |
| 1179 | |
| 1180 | channel = &ring->channel; |
| 1181 | |
| 1182 | vxge_hw_channel_dtr_free(channel, rxdh); |
| 1183 | |
| 1184 | } |
| 1185 | |
| 1186 | /** |
| 1187 | * vxge_hw_ring_rxd_pre_post - Prepare rxd and post |
| 1188 | * @ring: Handle to the ring object used for receive |
| 1189 | * @rxdh: Descriptor handle. |
| 1190 | * |
| 1191 | * This routine prepares a rxd and posts |
| 1192 | */ |
| 1193 | void vxge_hw_ring_rxd_pre_post(struct __vxge_hw_ring *ring, void *rxdh) |
| 1194 | { |
| 1195 | struct __vxge_hw_channel *channel; |
| 1196 | |
| 1197 | channel = &ring->channel; |
| 1198 | |
| 1199 | vxge_hw_channel_dtr_post(channel, rxdh); |
| 1200 | } |
| 1201 | |
| 1202 | /** |
| 1203 | * vxge_hw_ring_rxd_post_post - Process rxd after post. |
| 1204 | * @ring: Handle to the ring object used for receive |
| 1205 | * @rxdh: Descriptor handle. |
| 1206 | * |
| 1207 | * Processes rxd after post |
| 1208 | */ |
| 1209 | void vxge_hw_ring_rxd_post_post(struct __vxge_hw_ring *ring, void *rxdh) |
| 1210 | { |
| 1211 | struct vxge_hw_ring_rxd_1 *rxdp = (struct vxge_hw_ring_rxd_1 *)rxdh; |
| 1212 | struct __vxge_hw_channel *channel; |
| 1213 | |
| 1214 | channel = &ring->channel; |
| 1215 | |
Sreenivasa Honnur | 18dec74 | 2010-03-28 22:07:34 +0000 | [diff] [blame] | 1216 | rxdp->control_0 = VXGE_HW_RING_RXD_LIST_OWN_ADAPTER; |
Ramkrishna Vepa | 1132413 | 2009-04-01 18:14:58 +0000 | [diff] [blame] | 1217 | |
| 1218 | if (ring->stats->common_stats.usage_cnt > 0) |
| 1219 | ring->stats->common_stats.usage_cnt--; |
| 1220 | } |
| 1221 | |
| 1222 | /** |
| 1223 | * vxge_hw_ring_rxd_post - Post descriptor on the ring. |
| 1224 | * @ring: Handle to the ring object used for receive |
| 1225 | * @rxdh: Descriptor obtained via vxge_hw_ring_rxd_reserve(). |
| 1226 | * |
| 1227 | * Post descriptor on the ring. |
| 1228 | * Prior to posting the descriptor should be filled in accordance with |
| 1229 | * Host/Titan interface specification for a given service (LL, etc.). |
| 1230 | * |
| 1231 | */ |
| 1232 | void vxge_hw_ring_rxd_post(struct __vxge_hw_ring *ring, void *rxdh) |
| 1233 | { |
| 1234 | struct vxge_hw_ring_rxd_1 *rxdp = (struct vxge_hw_ring_rxd_1 *)rxdh; |
| 1235 | struct __vxge_hw_channel *channel; |
| 1236 | |
| 1237 | channel = &ring->channel; |
| 1238 | |
| 1239 | wmb(); |
Sreenivasa Honnur | 18dec74 | 2010-03-28 22:07:34 +0000 | [diff] [blame] | 1240 | rxdp->control_0 = VXGE_HW_RING_RXD_LIST_OWN_ADAPTER; |
Ramkrishna Vepa | 1132413 | 2009-04-01 18:14:58 +0000 | [diff] [blame] | 1241 | |
| 1242 | vxge_hw_channel_dtr_post(channel, rxdh); |
| 1243 | |
| 1244 | if (ring->stats->common_stats.usage_cnt > 0) |
| 1245 | ring->stats->common_stats.usage_cnt--; |
| 1246 | } |
| 1247 | |
| 1248 | /** |
| 1249 | * vxge_hw_ring_rxd_post_post_wmb - Process rxd after post with memory barrier. |
| 1250 | * @ring: Handle to the ring object used for receive |
| 1251 | * @rxdh: Descriptor handle. |
| 1252 | * |
| 1253 | * Processes rxd after post with memory barrier. |
| 1254 | */ |
| 1255 | void vxge_hw_ring_rxd_post_post_wmb(struct __vxge_hw_ring *ring, void *rxdh) |
| 1256 | { |
Ramkrishna Vepa | 1132413 | 2009-04-01 18:14:58 +0000 | [diff] [blame] | 1257 | wmb(); |
| 1258 | vxge_hw_ring_rxd_post_post(ring, rxdh); |
| 1259 | } |
| 1260 | |
| 1261 | /** |
| 1262 | * vxge_hw_ring_rxd_next_completed - Get the _next_ completed descriptor. |
| 1263 | * @ring: Handle to the ring object used for receive |
| 1264 | * @rxdh: Descriptor handle. Returned by HW. |
| 1265 | * @t_code: Transfer code, as per Titan User Guide, |
| 1266 | * Receive Descriptor Format. Returned by HW. |
| 1267 | * |
| 1268 | * Retrieve the _next_ completed descriptor. |
| 1269 | * HW uses ring callback (*vxge_hw_ring_callback_f) to notifiy |
| 1270 | * driver of new completed descriptors. After that |
| 1271 | * the driver can use vxge_hw_ring_rxd_next_completed to retrieve the rest |
| 1272 | * completions (the very first completion is passed by HW via |
| 1273 | * vxge_hw_ring_callback_f). |
| 1274 | * |
| 1275 | * Implementation-wise, the driver is free to call |
| 1276 | * vxge_hw_ring_rxd_next_completed either immediately from inside the |
| 1277 | * ring callback, or in a deferred fashion and separate (from HW) |
| 1278 | * context. |
| 1279 | * |
| 1280 | * Non-zero @t_code means failure to fill-in receive buffer(s) |
| 1281 | * of the descriptor. |
| 1282 | * For instance, parity error detected during the data transfer. |
| 1283 | * In this case Titan will complete the descriptor and indicate |
| 1284 | * for the host that the received data is not to be used. |
| 1285 | * For details please refer to Titan User Guide. |
| 1286 | * |
| 1287 | * Returns: VXGE_HW_OK - success. |
| 1288 | * VXGE_HW_INF_NO_MORE_COMPLETED_DESCRIPTORS - No completed descriptors |
| 1289 | * are currently available for processing. |
| 1290 | * |
| 1291 | * See also: vxge_hw_ring_callback_f{}, |
| 1292 | * vxge_hw_fifo_rxd_next_completed(), enum vxge_hw_status{}. |
| 1293 | */ |
| 1294 | enum vxge_hw_status vxge_hw_ring_rxd_next_completed( |
| 1295 | struct __vxge_hw_ring *ring, void **rxdh, u8 *t_code) |
| 1296 | { |
| 1297 | struct __vxge_hw_channel *channel; |
| 1298 | struct vxge_hw_ring_rxd_1 *rxdp; |
| 1299 | enum vxge_hw_status status = VXGE_HW_OK; |
Sreenivasa Honnur | 18dec74 | 2010-03-28 22:07:34 +0000 | [diff] [blame] | 1300 | u64 control_0, own; |
Ramkrishna Vepa | 1132413 | 2009-04-01 18:14:58 +0000 | [diff] [blame] | 1301 | |
| 1302 | channel = &ring->channel; |
| 1303 | |
| 1304 | vxge_hw_channel_dtr_try_complete(channel, rxdh); |
| 1305 | |
Joe Perches | 43d620c | 2011-06-16 19:08:06 +0000 | [diff] [blame] | 1306 | rxdp = *rxdh; |
Ramkrishna Vepa | 1132413 | 2009-04-01 18:14:58 +0000 | [diff] [blame] | 1307 | if (rxdp == NULL) { |
| 1308 | status = VXGE_HW_INF_NO_MORE_COMPLETED_DESCRIPTORS; |
| 1309 | goto exit; |
| 1310 | } |
| 1311 | |
Sreenivasa Honnur | 18dec74 | 2010-03-28 22:07:34 +0000 | [diff] [blame] | 1312 | control_0 = rxdp->control_0; |
| 1313 | own = control_0 & VXGE_HW_RING_RXD_LIST_OWN_ADAPTER; |
| 1314 | *t_code = (u8)VXGE_HW_RING_RXD_T_CODE_GET(control_0); |
| 1315 | |
Ramkrishna Vepa | 1132413 | 2009-04-01 18:14:58 +0000 | [diff] [blame] | 1316 | /* check whether it is not the end */ |
Dan Carpenter | a7dd602 | 2010-12-23 20:15:39 +0000 | [diff] [blame] | 1317 | if (!own || *t_code == VXGE_HW_RING_T_CODE_FRM_DROP) { |
Ramkrishna Vepa | 1132413 | 2009-04-01 18:14:58 +0000 | [diff] [blame] | 1318 | |
Joe Perches | 6469933 | 2012-06-04 12:44:16 +0000 | [diff] [blame] | 1319 | vxge_assert((rxdp)->host_control != |
Ramkrishna Vepa | 1132413 | 2009-04-01 18:14:58 +0000 | [diff] [blame] | 1320 | 0); |
| 1321 | |
| 1322 | ++ring->cmpl_cnt; |
| 1323 | vxge_hw_channel_dtr_complete(channel); |
| 1324 | |
Ramkrishna Vepa | 1132413 | 2009-04-01 18:14:58 +0000 | [diff] [blame] | 1325 | vxge_assert(*t_code != VXGE_HW_RING_RXD_T_CODE_UNUSED); |
| 1326 | |
| 1327 | ring->stats->common_stats.usage_cnt++; |
| 1328 | if (ring->stats->common_stats.usage_max < |
| 1329 | ring->stats->common_stats.usage_cnt) |
| 1330 | ring->stats->common_stats.usage_max = |
| 1331 | ring->stats->common_stats.usage_cnt; |
| 1332 | |
| 1333 | status = VXGE_HW_OK; |
| 1334 | goto exit; |
| 1335 | } |
| 1336 | |
| 1337 | /* reset it. since we don't want to return |
| 1338 | * garbage to the driver */ |
| 1339 | *rxdh = NULL; |
| 1340 | status = VXGE_HW_INF_NO_MORE_COMPLETED_DESCRIPTORS; |
| 1341 | exit: |
| 1342 | return status; |
| 1343 | } |
| 1344 | |
| 1345 | /** |
| 1346 | * vxge_hw_ring_handle_tcode - Handle transfer code. |
| 1347 | * @ring: Handle to the ring object used for receive |
| 1348 | * @rxdh: Descriptor handle. |
| 1349 | * @t_code: One of the enumerated (and documented in the Titan user guide) |
| 1350 | * "transfer codes". |
| 1351 | * |
| 1352 | * Handle descriptor's transfer code. The latter comes with each completed |
| 1353 | * descriptor. |
| 1354 | * |
| 1355 | * Returns: one of the enum vxge_hw_status{} enumerated types. |
| 1356 | * VXGE_HW_OK - for success. |
| 1357 | * VXGE_HW_ERR_CRITICAL - when encounters critical error. |
| 1358 | */ |
| 1359 | enum vxge_hw_status vxge_hw_ring_handle_tcode( |
| 1360 | struct __vxge_hw_ring *ring, void *rxdh, u8 t_code) |
| 1361 | { |
| 1362 | struct __vxge_hw_channel *channel; |
| 1363 | enum vxge_hw_status status = VXGE_HW_OK; |
| 1364 | |
| 1365 | channel = &ring->channel; |
| 1366 | |
| 1367 | /* If the t_code is not supported and if the |
| 1368 | * t_code is other than 0x5 (unparseable packet |
| 1369 | * such as unknown UPV6 header), Drop it !!! |
| 1370 | */ |
| 1371 | |
Sreenivasa Honnur | 18dec74 | 2010-03-28 22:07:34 +0000 | [diff] [blame] | 1372 | if (t_code == VXGE_HW_RING_T_CODE_OK || |
| 1373 | t_code == VXGE_HW_RING_T_CODE_L3_PKT_ERR) { |
Ramkrishna Vepa | 1132413 | 2009-04-01 18:14:58 +0000 | [diff] [blame] | 1374 | status = VXGE_HW_OK; |
| 1375 | goto exit; |
| 1376 | } |
| 1377 | |
Sreenivasa Honnur | 18dec74 | 2010-03-28 22:07:34 +0000 | [diff] [blame] | 1378 | if (t_code > VXGE_HW_RING_T_CODE_MULTI_ERR) { |
Ramkrishna Vepa | 1132413 | 2009-04-01 18:14:58 +0000 | [diff] [blame] | 1379 | status = VXGE_HW_ERR_INVALID_TCODE; |
| 1380 | goto exit; |
| 1381 | } |
| 1382 | |
| 1383 | ring->stats->rxd_t_code_err_cnt[t_code]++; |
| 1384 | exit: |
| 1385 | return status; |
| 1386 | } |
| 1387 | |
| 1388 | /** |
| 1389 | * __vxge_hw_non_offload_db_post - Post non offload doorbell |
| 1390 | * |
| 1391 | * @fifo: fifohandle |
| 1392 | * @txdl_ptr: The starting location of the TxDL in host memory |
| 1393 | * @num_txds: The highest TxD in this TxDL (0 to 255 means 1 to 256) |
| 1394 | * @no_snoop: No snoop flags |
| 1395 | * |
| 1396 | * This function posts a non-offload doorbell to doorbell FIFO |
| 1397 | * |
| 1398 | */ |
| 1399 | static void __vxge_hw_non_offload_db_post(struct __vxge_hw_fifo *fifo, |
| 1400 | u64 txdl_ptr, u32 num_txds, u32 no_snoop) |
| 1401 | { |
| 1402 | struct __vxge_hw_channel *channel; |
| 1403 | |
| 1404 | channel = &fifo->channel; |
| 1405 | |
| 1406 | writeq(VXGE_HW_NODBW_TYPE(VXGE_HW_NODBW_TYPE_NODBW) | |
| 1407 | VXGE_HW_NODBW_LAST_TXD_NUMBER(num_txds) | |
| 1408 | VXGE_HW_NODBW_GET_NO_SNOOP(no_snoop), |
| 1409 | &fifo->nofl_db->control_0); |
| 1410 | |
Benjamin LaHaise | ff1b974 | 2009-08-04 10:21:21 +0000 | [diff] [blame] | 1411 | mmiowb(); |
Ramkrishna Vepa | 1132413 | 2009-04-01 18:14:58 +0000 | [diff] [blame] | 1412 | |
| 1413 | writeq(txdl_ptr, &fifo->nofl_db->txdl_ptr); |
Ramkrishna Vepa | 1132413 | 2009-04-01 18:14:58 +0000 | [diff] [blame] | 1414 | |
Benjamin LaHaise | ff1b974 | 2009-08-04 10:21:21 +0000 | [diff] [blame] | 1415 | mmiowb(); |
Ramkrishna Vepa | 1132413 | 2009-04-01 18:14:58 +0000 | [diff] [blame] | 1416 | } |
| 1417 | |
| 1418 | /** |
| 1419 | * vxge_hw_fifo_free_txdl_count_get - returns the number of txdls available in |
| 1420 | * the fifo |
| 1421 | * @fifoh: Handle to the fifo object used for non offload send |
| 1422 | */ |
| 1423 | u32 vxge_hw_fifo_free_txdl_count_get(struct __vxge_hw_fifo *fifoh) |
| 1424 | { |
| 1425 | return vxge_hw_channel_dtr_count(&fifoh->channel); |
| 1426 | } |
| 1427 | |
| 1428 | /** |
| 1429 | * vxge_hw_fifo_txdl_reserve - Reserve fifo descriptor. |
| 1430 | * @fifoh: Handle to the fifo object used for non offload send |
| 1431 | * @txdlh: Reserved descriptor. On success HW fills this "out" parameter |
| 1432 | * with a valid handle. |
| 1433 | * @txdl_priv: Buffer to return the pointer to per txdl space |
| 1434 | * |
| 1435 | * Reserve a single TxDL (that is, fifo descriptor) |
| 1436 | * for the subsequent filling-in by driver) |
| 1437 | * and posting on the corresponding channel (@channelh) |
| 1438 | * via vxge_hw_fifo_txdl_post(). |
| 1439 | * |
| 1440 | * Note: it is the responsibility of driver to reserve multiple descriptors |
| 1441 | * for lengthy (e.g., LSO) transmit operation. A single fifo descriptor |
| 1442 | * carries up to configured number (fifo.max_frags) of contiguous buffers. |
| 1443 | * |
| 1444 | * Returns: VXGE_HW_OK - success; |
| 1445 | * VXGE_HW_INF_OUT_OF_DESCRIPTORS - Currently no descriptors available |
| 1446 | * |
| 1447 | */ |
| 1448 | enum vxge_hw_status vxge_hw_fifo_txdl_reserve( |
| 1449 | struct __vxge_hw_fifo *fifo, |
| 1450 | void **txdlh, void **txdl_priv) |
| 1451 | { |
| 1452 | struct __vxge_hw_channel *channel; |
| 1453 | enum vxge_hw_status status; |
| 1454 | int i; |
| 1455 | |
| 1456 | channel = &fifo->channel; |
| 1457 | |
| 1458 | status = vxge_hw_channel_dtr_alloc(channel, txdlh); |
| 1459 | |
| 1460 | if (status == VXGE_HW_OK) { |
| 1461 | struct vxge_hw_fifo_txd *txdp = |
| 1462 | (struct vxge_hw_fifo_txd *)*txdlh; |
| 1463 | struct __vxge_hw_fifo_txdl_priv *priv; |
| 1464 | |
| 1465 | priv = __vxge_hw_fifo_txdl_priv(fifo, txdp); |
| 1466 | |
| 1467 | /* reset the TxDL's private */ |
| 1468 | priv->align_dma_offset = 0; |
| 1469 | priv->align_vaddr_start = priv->align_vaddr; |
| 1470 | priv->align_used_frags = 0; |
| 1471 | priv->frags = 0; |
| 1472 | priv->alloc_frags = fifo->config->max_frags; |
| 1473 | priv->next_txdl_priv = NULL; |
| 1474 | |
| 1475 | *txdl_priv = (void *)(size_t)txdp->host_control; |
| 1476 | |
| 1477 | for (i = 0; i < fifo->config->max_frags; i++) { |
| 1478 | txdp = ((struct vxge_hw_fifo_txd *)*txdlh) + i; |
| 1479 | txdp->control_0 = txdp->control_1 = 0; |
| 1480 | } |
| 1481 | } |
| 1482 | |
| 1483 | return status; |
| 1484 | } |
| 1485 | |
| 1486 | /** |
| 1487 | * vxge_hw_fifo_txdl_buffer_set - Set transmit buffer pointer in the |
| 1488 | * descriptor. |
| 1489 | * @fifo: Handle to the fifo object used for non offload send |
| 1490 | * @txdlh: Descriptor handle. |
| 1491 | * @frag_idx: Index of the data buffer in the caller's scatter-gather list |
| 1492 | * (of buffers). |
| 1493 | * @dma_pointer: DMA address of the data buffer referenced by @frag_idx. |
| 1494 | * @size: Size of the data buffer (in bytes). |
| 1495 | * |
| 1496 | * This API is part of the preparation of the transmit descriptor for posting |
| 1497 | * (via vxge_hw_fifo_txdl_post()). The related "preparation" APIs include |
| 1498 | * vxge_hw_fifo_txdl_mss_set() and vxge_hw_fifo_txdl_cksum_set_bits(). |
| 1499 | * All three APIs fill in the fields of the fifo descriptor, |
| 1500 | * in accordance with the Titan specification. |
| 1501 | * |
| 1502 | */ |
| 1503 | void vxge_hw_fifo_txdl_buffer_set(struct __vxge_hw_fifo *fifo, |
| 1504 | void *txdlh, u32 frag_idx, |
| 1505 | dma_addr_t dma_pointer, u32 size) |
| 1506 | { |
| 1507 | struct __vxge_hw_fifo_txdl_priv *txdl_priv; |
| 1508 | struct vxge_hw_fifo_txd *txdp, *txdp_last; |
| 1509 | struct __vxge_hw_channel *channel; |
| 1510 | |
| 1511 | channel = &fifo->channel; |
| 1512 | |
| 1513 | txdl_priv = __vxge_hw_fifo_txdl_priv(fifo, txdlh); |
| 1514 | txdp = (struct vxge_hw_fifo_txd *)txdlh + txdl_priv->frags; |
| 1515 | |
| 1516 | if (frag_idx != 0) |
| 1517 | txdp->control_0 = txdp->control_1 = 0; |
| 1518 | else { |
| 1519 | txdp->control_0 |= VXGE_HW_FIFO_TXD_GATHER_CODE( |
| 1520 | VXGE_HW_FIFO_TXD_GATHER_CODE_FIRST); |
| 1521 | txdp->control_1 |= fifo->interrupt_type; |
| 1522 | txdp->control_1 |= VXGE_HW_FIFO_TXD_INT_NUMBER( |
| 1523 | fifo->tx_intr_num); |
| 1524 | if (txdl_priv->frags) { |
| 1525 | txdp_last = (struct vxge_hw_fifo_txd *)txdlh + |
| 1526 | (txdl_priv->frags - 1); |
| 1527 | txdp_last->control_0 |= VXGE_HW_FIFO_TXD_GATHER_CODE( |
| 1528 | VXGE_HW_FIFO_TXD_GATHER_CODE_LAST); |
| 1529 | } |
| 1530 | } |
| 1531 | |
| 1532 | vxge_assert(frag_idx < txdl_priv->alloc_frags); |
| 1533 | |
| 1534 | txdp->buffer_pointer = (u64)dma_pointer; |
| 1535 | txdp->control_0 |= VXGE_HW_FIFO_TXD_BUFFER_SIZE(size); |
| 1536 | fifo->stats->total_buffers++; |
| 1537 | txdl_priv->frags++; |
| 1538 | } |
| 1539 | |
| 1540 | /** |
| 1541 | * vxge_hw_fifo_txdl_post - Post descriptor on the fifo channel. |
| 1542 | * @fifo: Handle to the fifo object used for non offload send |
| 1543 | * @txdlh: Descriptor obtained via vxge_hw_fifo_txdl_reserve() |
| 1544 | * @frags: Number of contiguous buffers that are part of a single |
| 1545 | * transmit operation. |
| 1546 | * |
| 1547 | * Post descriptor on the 'fifo' type channel for transmission. |
| 1548 | * Prior to posting the descriptor should be filled in accordance with |
| 1549 | * Host/Titan interface specification for a given service (LL, etc.). |
| 1550 | * |
| 1551 | */ |
| 1552 | void vxge_hw_fifo_txdl_post(struct __vxge_hw_fifo *fifo, void *txdlh) |
| 1553 | { |
| 1554 | struct __vxge_hw_fifo_txdl_priv *txdl_priv; |
| 1555 | struct vxge_hw_fifo_txd *txdp_last; |
| 1556 | struct vxge_hw_fifo_txd *txdp_first; |
| 1557 | struct __vxge_hw_channel *channel; |
| 1558 | |
| 1559 | channel = &fifo->channel; |
| 1560 | |
| 1561 | txdl_priv = __vxge_hw_fifo_txdl_priv(fifo, txdlh); |
Joe Perches | 43d620c | 2011-06-16 19:08:06 +0000 | [diff] [blame] | 1562 | txdp_first = txdlh; |
Ramkrishna Vepa | 1132413 | 2009-04-01 18:14:58 +0000 | [diff] [blame] | 1563 | |
| 1564 | txdp_last = (struct vxge_hw_fifo_txd *)txdlh + (txdl_priv->frags - 1); |
| 1565 | txdp_last->control_0 |= |
| 1566 | VXGE_HW_FIFO_TXD_GATHER_CODE(VXGE_HW_FIFO_TXD_GATHER_CODE_LAST); |
| 1567 | txdp_first->control_0 |= VXGE_HW_FIFO_TXD_LIST_OWN_ADAPTER; |
| 1568 | |
| 1569 | vxge_hw_channel_dtr_post(&fifo->channel, txdlh); |
| 1570 | |
| 1571 | __vxge_hw_non_offload_db_post(fifo, |
Sreenivasa Honnur | a4a987d8 | 2009-10-05 01:54:42 +0000 | [diff] [blame] | 1572 | (u64)txdl_priv->dma_addr, |
Ramkrishna Vepa | 1132413 | 2009-04-01 18:14:58 +0000 | [diff] [blame] | 1573 | txdl_priv->frags - 1, |
| 1574 | fifo->no_snoop_bits); |
| 1575 | |
| 1576 | fifo->stats->total_posts++; |
| 1577 | fifo->stats->common_stats.usage_cnt++; |
| 1578 | if (fifo->stats->common_stats.usage_max < |
| 1579 | fifo->stats->common_stats.usage_cnt) |
| 1580 | fifo->stats->common_stats.usage_max = |
| 1581 | fifo->stats->common_stats.usage_cnt; |
| 1582 | } |
| 1583 | |
| 1584 | /** |
| 1585 | * vxge_hw_fifo_txdl_next_completed - Retrieve next completed descriptor. |
| 1586 | * @fifo: Handle to the fifo object used for non offload send |
| 1587 | * @txdlh: Descriptor handle. Returned by HW. |
| 1588 | * @t_code: Transfer code, as per Titan User Guide, |
| 1589 | * Transmit Descriptor Format. |
| 1590 | * Returned by HW. |
| 1591 | * |
| 1592 | * Retrieve the _next_ completed descriptor. |
| 1593 | * HW uses channel callback (*vxge_hw_channel_callback_f) to notifiy |
| 1594 | * driver of new completed descriptors. After that |
| 1595 | * the driver can use vxge_hw_fifo_txdl_next_completed to retrieve the rest |
| 1596 | * completions (the very first completion is passed by HW via |
| 1597 | * vxge_hw_channel_callback_f). |
| 1598 | * |
| 1599 | * Implementation-wise, the driver is free to call |
| 1600 | * vxge_hw_fifo_txdl_next_completed either immediately from inside the |
| 1601 | * channel callback, or in a deferred fashion and separate (from HW) |
| 1602 | * context. |
| 1603 | * |
| 1604 | * Non-zero @t_code means failure to process the descriptor. |
| 1605 | * The failure could happen, for instance, when the link is |
| 1606 | * down, in which case Titan completes the descriptor because it |
| 1607 | * is not able to send the data out. |
| 1608 | * |
| 1609 | * For details please refer to Titan User Guide. |
| 1610 | * |
| 1611 | * Returns: VXGE_HW_OK - success. |
| 1612 | * VXGE_HW_INF_NO_MORE_COMPLETED_DESCRIPTORS - No completed descriptors |
| 1613 | * are currently available for processing. |
| 1614 | * |
| 1615 | */ |
| 1616 | enum vxge_hw_status vxge_hw_fifo_txdl_next_completed( |
| 1617 | struct __vxge_hw_fifo *fifo, void **txdlh, |
| 1618 | enum vxge_hw_fifo_tcode *t_code) |
| 1619 | { |
| 1620 | struct __vxge_hw_channel *channel; |
| 1621 | struct vxge_hw_fifo_txd *txdp; |
| 1622 | enum vxge_hw_status status = VXGE_HW_OK; |
| 1623 | |
| 1624 | channel = &fifo->channel; |
| 1625 | |
| 1626 | vxge_hw_channel_dtr_try_complete(channel, txdlh); |
| 1627 | |
Joe Perches | 43d620c | 2011-06-16 19:08:06 +0000 | [diff] [blame] | 1628 | txdp = *txdlh; |
Ramkrishna Vepa | 1132413 | 2009-04-01 18:14:58 +0000 | [diff] [blame] | 1629 | if (txdp == NULL) { |
| 1630 | status = VXGE_HW_INF_NO_MORE_COMPLETED_DESCRIPTORS; |
| 1631 | goto exit; |
| 1632 | } |
| 1633 | |
| 1634 | /* check whether host owns it */ |
| 1635 | if (!(txdp->control_0 & VXGE_HW_FIFO_TXD_LIST_OWN_ADAPTER)) { |
| 1636 | |
| 1637 | vxge_assert(txdp->host_control != 0); |
| 1638 | |
| 1639 | vxge_hw_channel_dtr_complete(channel); |
| 1640 | |
| 1641 | *t_code = (u8)VXGE_HW_FIFO_TXD_T_CODE_GET(txdp->control_0); |
| 1642 | |
| 1643 | if (fifo->stats->common_stats.usage_cnt > 0) |
| 1644 | fifo->stats->common_stats.usage_cnt--; |
| 1645 | |
| 1646 | status = VXGE_HW_OK; |
| 1647 | goto exit; |
| 1648 | } |
| 1649 | |
| 1650 | /* no more completions */ |
| 1651 | *txdlh = NULL; |
| 1652 | status = VXGE_HW_INF_NO_MORE_COMPLETED_DESCRIPTORS; |
| 1653 | exit: |
| 1654 | return status; |
| 1655 | } |
| 1656 | |
| 1657 | /** |
| 1658 | * vxge_hw_fifo_handle_tcode - Handle transfer code. |
| 1659 | * @fifo: Handle to the fifo object used for non offload send |
| 1660 | * @txdlh: Descriptor handle. |
| 1661 | * @t_code: One of the enumerated (and documented in the Titan user guide) |
| 1662 | * "transfer codes". |
| 1663 | * |
| 1664 | * Handle descriptor's transfer code. The latter comes with each completed |
| 1665 | * descriptor. |
| 1666 | * |
| 1667 | * Returns: one of the enum vxge_hw_status{} enumerated types. |
| 1668 | * VXGE_HW_OK - for success. |
| 1669 | * VXGE_HW_ERR_CRITICAL - when encounters critical error. |
| 1670 | */ |
| 1671 | enum vxge_hw_status vxge_hw_fifo_handle_tcode(struct __vxge_hw_fifo *fifo, |
| 1672 | void *txdlh, |
| 1673 | enum vxge_hw_fifo_tcode t_code) |
| 1674 | { |
| 1675 | struct __vxge_hw_channel *channel; |
| 1676 | |
| 1677 | enum vxge_hw_status status = VXGE_HW_OK; |
| 1678 | channel = &fifo->channel; |
| 1679 | |
| 1680 | if (((t_code & 0x7) < 0) || ((t_code & 0x7) > 0x4)) { |
| 1681 | status = VXGE_HW_ERR_INVALID_TCODE; |
| 1682 | goto exit; |
| 1683 | } |
| 1684 | |
| 1685 | fifo->stats->txd_t_code_err_cnt[t_code]++; |
| 1686 | exit: |
| 1687 | return status; |
| 1688 | } |
| 1689 | |
| 1690 | /** |
| 1691 | * vxge_hw_fifo_txdl_free - Free descriptor. |
| 1692 | * @fifo: Handle to the fifo object used for non offload send |
| 1693 | * @txdlh: Descriptor handle. |
| 1694 | * |
| 1695 | * Free the reserved descriptor. This operation is "symmetrical" to |
| 1696 | * vxge_hw_fifo_txdl_reserve. The "free-ing" completes the descriptor's |
| 1697 | * lifecycle. |
| 1698 | * |
| 1699 | * After free-ing (see vxge_hw_fifo_txdl_free()) the descriptor again can |
| 1700 | * be: |
| 1701 | * |
| 1702 | * - reserved (vxge_hw_fifo_txdl_reserve); |
| 1703 | * |
| 1704 | * - posted (vxge_hw_fifo_txdl_post); |
| 1705 | * |
| 1706 | * - completed (vxge_hw_fifo_txdl_next_completed); |
| 1707 | * |
| 1708 | * - and recycled again (vxge_hw_fifo_txdl_free). |
| 1709 | * |
| 1710 | * For alternative state transitions and more details please refer to |
| 1711 | * the design doc. |
| 1712 | * |
| 1713 | */ |
| 1714 | void vxge_hw_fifo_txdl_free(struct __vxge_hw_fifo *fifo, void *txdlh) |
| 1715 | { |
| 1716 | struct __vxge_hw_fifo_txdl_priv *txdl_priv; |
| 1717 | u32 max_frags; |
| 1718 | struct __vxge_hw_channel *channel; |
| 1719 | |
| 1720 | channel = &fifo->channel; |
| 1721 | |
| 1722 | txdl_priv = __vxge_hw_fifo_txdl_priv(fifo, |
| 1723 | (struct vxge_hw_fifo_txd *)txdlh); |
| 1724 | |
| 1725 | max_frags = fifo->config->max_frags; |
| 1726 | |
| 1727 | vxge_hw_channel_dtr_free(channel, txdlh); |
| 1728 | } |
| 1729 | |
| 1730 | /** |
| 1731 | * vxge_hw_vpath_mac_addr_add - Add the mac address entry for this vpath |
| 1732 | * to MAC address table. |
| 1733 | * @vp: Vpath handle. |
| 1734 | * @macaddr: MAC address to be added for this vpath into the list |
| 1735 | * @macaddr_mask: MAC address mask for macaddr |
| 1736 | * @duplicate_mode: Duplicate MAC address add mode. Please see |
| 1737 | * enum vxge_hw_vpath_mac_addr_add_mode{} |
| 1738 | * |
| 1739 | * Adds the given mac address and mac address mask into the list for this |
| 1740 | * vpath. |
| 1741 | * see also: vxge_hw_vpath_mac_addr_delete, vxge_hw_vpath_mac_addr_get and |
| 1742 | * vxge_hw_vpath_mac_addr_get_next |
| 1743 | * |
| 1744 | */ |
| 1745 | enum vxge_hw_status |
| 1746 | vxge_hw_vpath_mac_addr_add( |
| 1747 | struct __vxge_hw_vpath_handle *vp, |
| 1748 | u8 (macaddr)[ETH_ALEN], |
| 1749 | u8 (macaddr_mask)[ETH_ALEN], |
| 1750 | enum vxge_hw_vpath_mac_addr_add_mode duplicate_mode) |
| 1751 | { |
| 1752 | u32 i; |
| 1753 | u64 data1 = 0ULL; |
| 1754 | u64 data2 = 0ULL; |
| 1755 | enum vxge_hw_status status = VXGE_HW_OK; |
| 1756 | |
| 1757 | if (vp == NULL) { |
| 1758 | status = VXGE_HW_ERR_INVALID_HANDLE; |
| 1759 | goto exit; |
| 1760 | } |
| 1761 | |
| 1762 | for (i = 0; i < ETH_ALEN; i++) { |
| 1763 | data1 <<= 8; |
| 1764 | data1 |= (u8)macaddr[i]; |
| 1765 | |
| 1766 | data2 <<= 8; |
| 1767 | data2 |= (u8)macaddr_mask[i]; |
| 1768 | } |
| 1769 | |
| 1770 | switch (duplicate_mode) { |
| 1771 | case VXGE_HW_VPATH_MAC_ADDR_ADD_DUPLICATE: |
| 1772 | i = 0; |
| 1773 | break; |
| 1774 | case VXGE_HW_VPATH_MAC_ADDR_DISCARD_DUPLICATE: |
| 1775 | i = 1; |
| 1776 | break; |
| 1777 | case VXGE_HW_VPATH_MAC_ADDR_REPLACE_DUPLICATE: |
| 1778 | i = 2; |
| 1779 | break; |
| 1780 | default: |
| 1781 | i = 0; |
| 1782 | break; |
| 1783 | } |
| 1784 | |
| 1785 | status = __vxge_hw_vpath_rts_table_set(vp, |
| 1786 | VXGE_HW_RTS_ACCESS_STEER_CTRL_ACTION_ADD_ENTRY, |
| 1787 | VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL_DA, |
| 1788 | 0, |
| 1789 | VXGE_HW_RTS_ACCESS_STEER_DATA0_DA_MAC_ADDR(data1), |
| 1790 | VXGE_HW_RTS_ACCESS_STEER_DATA1_DA_MAC_ADDR_MASK(data2)| |
| 1791 | VXGE_HW_RTS_ACCESS_STEER_DATA1_DA_MAC_ADDR_MODE(i)); |
| 1792 | exit: |
| 1793 | return status; |
| 1794 | } |
| 1795 | |
| 1796 | /** |
| 1797 | * vxge_hw_vpath_mac_addr_get - Get the first mac address entry for this vpath |
| 1798 | * from MAC address table. |
| 1799 | * @vp: Vpath handle. |
| 1800 | * @macaddr: First MAC address entry for this vpath in the list |
| 1801 | * @macaddr_mask: MAC address mask for macaddr |
| 1802 | * |
| 1803 | * Returns the first mac address and mac address mask in the list for this |
| 1804 | * vpath. |
| 1805 | * see also: vxge_hw_vpath_mac_addr_get_next |
| 1806 | * |
| 1807 | */ |
| 1808 | enum vxge_hw_status |
| 1809 | vxge_hw_vpath_mac_addr_get( |
| 1810 | struct __vxge_hw_vpath_handle *vp, |
| 1811 | u8 (macaddr)[ETH_ALEN], |
| 1812 | u8 (macaddr_mask)[ETH_ALEN]) |
| 1813 | { |
| 1814 | u32 i; |
| 1815 | u64 data1 = 0ULL; |
| 1816 | u64 data2 = 0ULL; |
| 1817 | enum vxge_hw_status status = VXGE_HW_OK; |
| 1818 | |
| 1819 | if (vp == NULL) { |
| 1820 | status = VXGE_HW_ERR_INVALID_HANDLE; |
| 1821 | goto exit; |
| 1822 | } |
| 1823 | |
| 1824 | status = __vxge_hw_vpath_rts_table_get(vp, |
| 1825 | VXGE_HW_RTS_ACCESS_STEER_CTRL_ACTION_LIST_FIRST_ENTRY, |
| 1826 | VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL_DA, |
| 1827 | 0, &data1, &data2); |
| 1828 | |
| 1829 | if (status != VXGE_HW_OK) |
| 1830 | goto exit; |
| 1831 | |
| 1832 | data1 = VXGE_HW_RTS_ACCESS_STEER_DATA0_GET_DA_MAC_ADDR(data1); |
| 1833 | |
| 1834 | data2 = VXGE_HW_RTS_ACCESS_STEER_DATA1_GET_DA_MAC_ADDR_MASK(data2); |
| 1835 | |
| 1836 | for (i = ETH_ALEN; i > 0; i--) { |
| 1837 | macaddr[i-1] = (u8)(data1 & 0xFF); |
| 1838 | data1 >>= 8; |
| 1839 | |
| 1840 | macaddr_mask[i-1] = (u8)(data2 & 0xFF); |
| 1841 | data2 >>= 8; |
| 1842 | } |
| 1843 | exit: |
| 1844 | return status; |
| 1845 | } |
| 1846 | |
| 1847 | /** |
| 1848 | * vxge_hw_vpath_mac_addr_get_next - Get the next mac address entry for this |
| 1849 | * vpath |
| 1850 | * from MAC address table. |
| 1851 | * @vp: Vpath handle. |
| 1852 | * @macaddr: Next MAC address entry for this vpath in the list |
| 1853 | * @macaddr_mask: MAC address mask for macaddr |
| 1854 | * |
| 1855 | * Returns the next mac address and mac address mask in the list for this |
| 1856 | * vpath. |
| 1857 | * see also: vxge_hw_vpath_mac_addr_get |
| 1858 | * |
| 1859 | */ |
| 1860 | enum vxge_hw_status |
| 1861 | vxge_hw_vpath_mac_addr_get_next( |
| 1862 | struct __vxge_hw_vpath_handle *vp, |
| 1863 | u8 (macaddr)[ETH_ALEN], |
| 1864 | u8 (macaddr_mask)[ETH_ALEN]) |
| 1865 | { |
| 1866 | u32 i; |
| 1867 | u64 data1 = 0ULL; |
| 1868 | u64 data2 = 0ULL; |
| 1869 | enum vxge_hw_status status = VXGE_HW_OK; |
| 1870 | |
| 1871 | if (vp == NULL) { |
| 1872 | status = VXGE_HW_ERR_INVALID_HANDLE; |
| 1873 | goto exit; |
| 1874 | } |
| 1875 | |
| 1876 | status = __vxge_hw_vpath_rts_table_get(vp, |
| 1877 | VXGE_HW_RTS_ACCESS_STEER_CTRL_ACTION_LIST_NEXT_ENTRY, |
| 1878 | VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL_DA, |
| 1879 | 0, &data1, &data2); |
| 1880 | |
| 1881 | if (status != VXGE_HW_OK) |
| 1882 | goto exit; |
| 1883 | |
| 1884 | data1 = VXGE_HW_RTS_ACCESS_STEER_DATA0_GET_DA_MAC_ADDR(data1); |
| 1885 | |
| 1886 | data2 = VXGE_HW_RTS_ACCESS_STEER_DATA1_GET_DA_MAC_ADDR_MASK(data2); |
| 1887 | |
| 1888 | for (i = ETH_ALEN; i > 0; i--) { |
| 1889 | macaddr[i-1] = (u8)(data1 & 0xFF); |
| 1890 | data1 >>= 8; |
| 1891 | |
| 1892 | macaddr_mask[i-1] = (u8)(data2 & 0xFF); |
| 1893 | data2 >>= 8; |
| 1894 | } |
| 1895 | |
| 1896 | exit: |
| 1897 | return status; |
| 1898 | } |
| 1899 | |
| 1900 | /** |
| 1901 | * vxge_hw_vpath_mac_addr_delete - Delete the mac address entry for this vpath |
| 1902 | * to MAC address table. |
| 1903 | * @vp: Vpath handle. |
| 1904 | * @macaddr: MAC address to be added for this vpath into the list |
| 1905 | * @macaddr_mask: MAC address mask for macaddr |
| 1906 | * |
| 1907 | * Delete the given mac address and mac address mask into the list for this |
| 1908 | * vpath. |
| 1909 | * see also: vxge_hw_vpath_mac_addr_add, vxge_hw_vpath_mac_addr_get and |
| 1910 | * vxge_hw_vpath_mac_addr_get_next |
| 1911 | * |
| 1912 | */ |
| 1913 | enum vxge_hw_status |
| 1914 | vxge_hw_vpath_mac_addr_delete( |
| 1915 | struct __vxge_hw_vpath_handle *vp, |
| 1916 | u8 (macaddr)[ETH_ALEN], |
| 1917 | u8 (macaddr_mask)[ETH_ALEN]) |
| 1918 | { |
| 1919 | u32 i; |
| 1920 | u64 data1 = 0ULL; |
| 1921 | u64 data2 = 0ULL; |
| 1922 | enum vxge_hw_status status = VXGE_HW_OK; |
| 1923 | |
| 1924 | if (vp == NULL) { |
| 1925 | status = VXGE_HW_ERR_INVALID_HANDLE; |
| 1926 | goto exit; |
| 1927 | } |
| 1928 | |
| 1929 | for (i = 0; i < ETH_ALEN; i++) { |
| 1930 | data1 <<= 8; |
| 1931 | data1 |= (u8)macaddr[i]; |
| 1932 | |
| 1933 | data2 <<= 8; |
| 1934 | data2 |= (u8)macaddr_mask[i]; |
| 1935 | } |
| 1936 | |
| 1937 | status = __vxge_hw_vpath_rts_table_set(vp, |
| 1938 | VXGE_HW_RTS_ACCESS_STEER_CTRL_ACTION_DELETE_ENTRY, |
| 1939 | VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL_DA, |
| 1940 | 0, |
| 1941 | VXGE_HW_RTS_ACCESS_STEER_DATA0_DA_MAC_ADDR(data1), |
| 1942 | VXGE_HW_RTS_ACCESS_STEER_DATA1_DA_MAC_ADDR_MASK(data2)); |
| 1943 | exit: |
| 1944 | return status; |
| 1945 | } |
| 1946 | |
| 1947 | /** |
| 1948 | * vxge_hw_vpath_vid_add - Add the vlan id entry for this vpath |
| 1949 | * to vlan id table. |
| 1950 | * @vp: Vpath handle. |
| 1951 | * @vid: vlan id to be added for this vpath into the list |
| 1952 | * |
| 1953 | * Adds the given vlan id into the list for this vpath. |
stephen hemminger | e40c10f | 2014-01-15 08:28:54 -0800 | [diff] [blame] | 1954 | * see also: vxge_hw_vpath_vid_delete |
Ramkrishna Vepa | 1132413 | 2009-04-01 18:14:58 +0000 | [diff] [blame] | 1955 | * |
| 1956 | */ |
| 1957 | enum vxge_hw_status |
| 1958 | vxge_hw_vpath_vid_add(struct __vxge_hw_vpath_handle *vp, u64 vid) |
| 1959 | { |
| 1960 | enum vxge_hw_status status = VXGE_HW_OK; |
| 1961 | |
| 1962 | if (vp == NULL) { |
| 1963 | status = VXGE_HW_ERR_INVALID_HANDLE; |
| 1964 | goto exit; |
| 1965 | } |
| 1966 | |
| 1967 | status = __vxge_hw_vpath_rts_table_set(vp, |
| 1968 | VXGE_HW_RTS_ACCESS_STEER_CTRL_ACTION_ADD_ENTRY, |
| 1969 | VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL_VID, |
| 1970 | 0, VXGE_HW_RTS_ACCESS_STEER_DATA0_VLAN_ID(vid), 0); |
| 1971 | exit: |
| 1972 | return status; |
| 1973 | } |
| 1974 | |
| 1975 | /** |
Ramkrishna Vepa | 1132413 | 2009-04-01 18:14:58 +0000 | [diff] [blame] | 1976 | * vxge_hw_vpath_vid_delete - Delete the vlan id entry for this vpath |
| 1977 | * to vlan id table. |
| 1978 | * @vp: Vpath handle. |
| 1979 | * @vid: vlan id to be added for this vpath into the list |
| 1980 | * |
| 1981 | * Adds the given vlan id into the list for this vpath. |
stephen hemminger | e40c10f | 2014-01-15 08:28:54 -0800 | [diff] [blame] | 1982 | * see also: vxge_hw_vpath_vid_add |
Ramkrishna Vepa | 1132413 | 2009-04-01 18:14:58 +0000 | [diff] [blame] | 1983 | * |
| 1984 | */ |
| 1985 | enum vxge_hw_status |
| 1986 | vxge_hw_vpath_vid_delete(struct __vxge_hw_vpath_handle *vp, u64 vid) |
| 1987 | { |
| 1988 | enum vxge_hw_status status = VXGE_HW_OK; |
| 1989 | |
| 1990 | if (vp == NULL) { |
| 1991 | status = VXGE_HW_ERR_INVALID_HANDLE; |
| 1992 | goto exit; |
| 1993 | } |
| 1994 | |
| 1995 | status = __vxge_hw_vpath_rts_table_set(vp, |
| 1996 | VXGE_HW_RTS_ACCESS_STEER_CTRL_ACTION_DELETE_ENTRY, |
| 1997 | VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL_VID, |
| 1998 | 0, VXGE_HW_RTS_ACCESS_STEER_DATA0_VLAN_ID(vid), 0); |
| 1999 | exit: |
| 2000 | return status; |
| 2001 | } |
| 2002 | |
| 2003 | /** |
| 2004 | * vxge_hw_vpath_promisc_enable - Enable promiscuous mode. |
| 2005 | * @vp: Vpath handle. |
| 2006 | * |
| 2007 | * Enable promiscuous mode of Titan-e operation. |
| 2008 | * |
| 2009 | * See also: vxge_hw_vpath_promisc_disable(). |
| 2010 | */ |
| 2011 | enum vxge_hw_status vxge_hw_vpath_promisc_enable( |
| 2012 | struct __vxge_hw_vpath_handle *vp) |
| 2013 | { |
| 2014 | u64 val64; |
| 2015 | struct __vxge_hw_virtualpath *vpath; |
| 2016 | enum vxge_hw_status status = VXGE_HW_OK; |
| 2017 | |
| 2018 | if ((vp == NULL) || (vp->vpath->ringh == NULL)) { |
| 2019 | status = VXGE_HW_ERR_INVALID_HANDLE; |
| 2020 | goto exit; |
| 2021 | } |
| 2022 | |
| 2023 | vpath = vp->vpath; |
| 2024 | |
Lucas De Marchi | 25985ed | 2011-03-30 22:57:33 -0300 | [diff] [blame] | 2025 | /* Enable promiscuous mode for function 0 only */ |
Ramkrishna Vepa | 1132413 | 2009-04-01 18:14:58 +0000 | [diff] [blame] | 2026 | if (!(vpath->hldev->access_rights & |
| 2027 | VXGE_HW_DEVICE_ACCESS_RIGHT_MRPCIM)) |
| 2028 | return VXGE_HW_OK; |
| 2029 | |
| 2030 | val64 = readq(&vpath->vp_reg->rxmac_vcfg0); |
| 2031 | |
| 2032 | if (!(val64 & VXGE_HW_RXMAC_VCFG0_UCAST_ALL_ADDR_EN)) { |
| 2033 | |
| 2034 | val64 |= VXGE_HW_RXMAC_VCFG0_UCAST_ALL_ADDR_EN | |
| 2035 | VXGE_HW_RXMAC_VCFG0_MCAST_ALL_ADDR_EN | |
| 2036 | VXGE_HW_RXMAC_VCFG0_BCAST_EN | |
| 2037 | VXGE_HW_RXMAC_VCFG0_ALL_VID_EN; |
| 2038 | |
| 2039 | writeq(val64, &vpath->vp_reg->rxmac_vcfg0); |
| 2040 | } |
| 2041 | exit: |
| 2042 | return status; |
| 2043 | } |
| 2044 | |
| 2045 | /** |
| 2046 | * vxge_hw_vpath_promisc_disable - Disable promiscuous mode. |
| 2047 | * @vp: Vpath handle. |
| 2048 | * |
| 2049 | * Disable promiscuous mode of Titan-e operation. |
| 2050 | * |
| 2051 | * See also: vxge_hw_vpath_promisc_enable(). |
| 2052 | */ |
| 2053 | enum vxge_hw_status vxge_hw_vpath_promisc_disable( |
| 2054 | struct __vxge_hw_vpath_handle *vp) |
| 2055 | { |
| 2056 | u64 val64; |
| 2057 | struct __vxge_hw_virtualpath *vpath; |
| 2058 | enum vxge_hw_status status = VXGE_HW_OK; |
| 2059 | |
| 2060 | if ((vp == NULL) || (vp->vpath->ringh == NULL)) { |
| 2061 | status = VXGE_HW_ERR_INVALID_HANDLE; |
| 2062 | goto exit; |
| 2063 | } |
| 2064 | |
| 2065 | vpath = vp->vpath; |
| 2066 | |
| 2067 | val64 = readq(&vpath->vp_reg->rxmac_vcfg0); |
| 2068 | |
| 2069 | if (val64 & VXGE_HW_RXMAC_VCFG0_UCAST_ALL_ADDR_EN) { |
| 2070 | |
| 2071 | val64 &= ~(VXGE_HW_RXMAC_VCFG0_UCAST_ALL_ADDR_EN | |
| 2072 | VXGE_HW_RXMAC_VCFG0_MCAST_ALL_ADDR_EN | |
| 2073 | VXGE_HW_RXMAC_VCFG0_ALL_VID_EN); |
| 2074 | |
| 2075 | writeq(val64, &vpath->vp_reg->rxmac_vcfg0); |
| 2076 | } |
| 2077 | exit: |
| 2078 | return status; |
| 2079 | } |
| 2080 | |
| 2081 | /* |
| 2082 | * vxge_hw_vpath_bcast_enable - Enable broadcast |
| 2083 | * @vp: Vpath handle. |
| 2084 | * |
| 2085 | * Enable receiving broadcasts. |
| 2086 | */ |
| 2087 | enum vxge_hw_status vxge_hw_vpath_bcast_enable( |
| 2088 | struct __vxge_hw_vpath_handle *vp) |
| 2089 | { |
| 2090 | u64 val64; |
| 2091 | struct __vxge_hw_virtualpath *vpath; |
| 2092 | enum vxge_hw_status status = VXGE_HW_OK; |
| 2093 | |
| 2094 | if ((vp == NULL) || (vp->vpath->ringh == NULL)) { |
| 2095 | status = VXGE_HW_ERR_INVALID_HANDLE; |
| 2096 | goto exit; |
| 2097 | } |
| 2098 | |
| 2099 | vpath = vp->vpath; |
| 2100 | |
| 2101 | val64 = readq(&vpath->vp_reg->rxmac_vcfg0); |
| 2102 | |
| 2103 | if (!(val64 & VXGE_HW_RXMAC_VCFG0_BCAST_EN)) { |
| 2104 | val64 |= VXGE_HW_RXMAC_VCFG0_BCAST_EN; |
| 2105 | writeq(val64, &vpath->vp_reg->rxmac_vcfg0); |
| 2106 | } |
| 2107 | exit: |
| 2108 | return status; |
| 2109 | } |
| 2110 | |
| 2111 | /** |
| 2112 | * vxge_hw_vpath_mcast_enable - Enable multicast addresses. |
| 2113 | * @vp: Vpath handle. |
| 2114 | * |
| 2115 | * Enable Titan-e multicast addresses. |
| 2116 | * Returns: VXGE_HW_OK on success. |
| 2117 | * |
| 2118 | */ |
| 2119 | enum vxge_hw_status vxge_hw_vpath_mcast_enable( |
| 2120 | struct __vxge_hw_vpath_handle *vp) |
| 2121 | { |
| 2122 | u64 val64; |
| 2123 | struct __vxge_hw_virtualpath *vpath; |
| 2124 | enum vxge_hw_status status = VXGE_HW_OK; |
| 2125 | |
| 2126 | if ((vp == NULL) || (vp->vpath->ringh == NULL)) { |
| 2127 | status = VXGE_HW_ERR_INVALID_HANDLE; |
| 2128 | goto exit; |
| 2129 | } |
| 2130 | |
| 2131 | vpath = vp->vpath; |
| 2132 | |
| 2133 | val64 = readq(&vpath->vp_reg->rxmac_vcfg0); |
| 2134 | |
| 2135 | if (!(val64 & VXGE_HW_RXMAC_VCFG0_MCAST_ALL_ADDR_EN)) { |
| 2136 | val64 |= VXGE_HW_RXMAC_VCFG0_MCAST_ALL_ADDR_EN; |
| 2137 | writeq(val64, &vpath->vp_reg->rxmac_vcfg0); |
| 2138 | } |
| 2139 | exit: |
| 2140 | return status; |
| 2141 | } |
| 2142 | |
| 2143 | /** |
| 2144 | * vxge_hw_vpath_mcast_disable - Disable multicast addresses. |
| 2145 | * @vp: Vpath handle. |
| 2146 | * |
| 2147 | * Disable Titan-e multicast addresses. |
| 2148 | * Returns: VXGE_HW_OK - success. |
| 2149 | * VXGE_HW_ERR_INVALID_HANDLE - Invalid handle |
| 2150 | * |
| 2151 | */ |
| 2152 | enum vxge_hw_status |
| 2153 | vxge_hw_vpath_mcast_disable(struct __vxge_hw_vpath_handle *vp) |
| 2154 | { |
| 2155 | u64 val64; |
| 2156 | struct __vxge_hw_virtualpath *vpath; |
| 2157 | enum vxge_hw_status status = VXGE_HW_OK; |
| 2158 | |
| 2159 | if ((vp == NULL) || (vp->vpath->ringh == NULL)) { |
| 2160 | status = VXGE_HW_ERR_INVALID_HANDLE; |
| 2161 | goto exit; |
| 2162 | } |
| 2163 | |
| 2164 | vpath = vp->vpath; |
| 2165 | |
| 2166 | val64 = readq(&vpath->vp_reg->rxmac_vcfg0); |
| 2167 | |
| 2168 | if (val64 & VXGE_HW_RXMAC_VCFG0_MCAST_ALL_ADDR_EN) { |
| 2169 | val64 &= ~VXGE_HW_RXMAC_VCFG0_MCAST_ALL_ADDR_EN; |
| 2170 | writeq(val64, &vpath->vp_reg->rxmac_vcfg0); |
| 2171 | } |
| 2172 | exit: |
| 2173 | return status; |
| 2174 | } |
| 2175 | |
| 2176 | /* |
Ramkrishna Vepa | 1132413 | 2009-04-01 18:14:58 +0000 | [diff] [blame] | 2177 | * vxge_hw_vpath_alarm_process - Process Alarms. |
| 2178 | * @vpath: Virtual Path. |
| 2179 | * @skip_alarms: Do not clear the alarms |
| 2180 | * |
| 2181 | * Process vpath alarms. |
| 2182 | * |
| 2183 | */ |
| 2184 | enum vxge_hw_status vxge_hw_vpath_alarm_process( |
| 2185 | struct __vxge_hw_vpath_handle *vp, |
| 2186 | u32 skip_alarms) |
| 2187 | { |
| 2188 | enum vxge_hw_status status = VXGE_HW_OK; |
| 2189 | |
| 2190 | if (vp == NULL) { |
| 2191 | status = VXGE_HW_ERR_INVALID_HANDLE; |
| 2192 | goto exit; |
| 2193 | } |
| 2194 | |
| 2195 | status = __vxge_hw_vpath_alarm_process(vp->vpath, skip_alarms); |
| 2196 | exit: |
| 2197 | return status; |
| 2198 | } |
| 2199 | |
| 2200 | /** |
| 2201 | * vxge_hw_vpath_msix_set - Associate MSIX vectors with TIM interrupts and |
| 2202 | * alrms |
| 2203 | * @vp: Virtual Path handle. |
| 2204 | * @tim_msix_id: MSIX vectors associated with VXGE_HW_MAX_INTR_PER_VP number of |
| 2205 | * interrupts(Can be repeated). If fifo or ring are not enabled |
| 2206 | * the MSIX vector for that should be set to 0 |
| 2207 | * @alarm_msix_id: MSIX vector for alarm. |
| 2208 | * |
| 2209 | * This API will associate a given MSIX vector numbers with the four TIM |
| 2210 | * interrupts and alarm interrupt. |
| 2211 | */ |
Sreenivasa Honnur | b59c9457 | 2010-03-28 22:11:41 +0000 | [diff] [blame] | 2212 | void |
Ramkrishna Vepa | 1132413 | 2009-04-01 18:14:58 +0000 | [diff] [blame] | 2213 | vxge_hw_vpath_msix_set(struct __vxge_hw_vpath_handle *vp, int *tim_msix_id, |
| 2214 | int alarm_msix_id) |
| 2215 | { |
| 2216 | u64 val64; |
| 2217 | struct __vxge_hw_virtualpath *vpath = vp->vpath; |
| 2218 | struct vxge_hw_vpath_reg __iomem *vp_reg = vpath->vp_reg; |
Sreenivasa Honnur | b59c9457 | 2010-03-28 22:11:41 +0000 | [diff] [blame] | 2219 | u32 vp_id = vp->vpath->vp_id; |
Ramkrishna Vepa | 1132413 | 2009-04-01 18:14:58 +0000 | [diff] [blame] | 2220 | |
| 2221 | val64 = VXGE_HW_INTERRUPT_CFG0_GROUP0_MSIX_FOR_TXTI( |
Sreenivasa Honnur | b59c9457 | 2010-03-28 22:11:41 +0000 | [diff] [blame] | 2222 | (vp_id * 4) + tim_msix_id[0]) | |
Ramkrishna Vepa | 1132413 | 2009-04-01 18:14:58 +0000 | [diff] [blame] | 2223 | VXGE_HW_INTERRUPT_CFG0_GROUP1_MSIX_FOR_TXTI( |
Sreenivasa Honnur | b59c9457 | 2010-03-28 22:11:41 +0000 | [diff] [blame] | 2224 | (vp_id * 4) + tim_msix_id[1]); |
Ramkrishna Vepa | 1132413 | 2009-04-01 18:14:58 +0000 | [diff] [blame] | 2225 | |
| 2226 | writeq(val64, &vp_reg->interrupt_cfg0); |
| 2227 | |
| 2228 | writeq(VXGE_HW_INTERRUPT_CFG2_ALARM_MAP_TO_MSG( |
Sreenivasa Honnur | b59c9457 | 2010-03-28 22:11:41 +0000 | [diff] [blame] | 2229 | (vpath->hldev->first_vp_id * 4) + alarm_msix_id), |
Ramkrishna Vepa | 1132413 | 2009-04-01 18:14:58 +0000 | [diff] [blame] | 2230 | &vp_reg->interrupt_cfg2); |
| 2231 | |
| 2232 | if (vpath->hldev->config.intr_mode == |
| 2233 | VXGE_HW_INTR_MODE_MSIX_ONE_SHOT) { |
| 2234 | __vxge_hw_pio_mem_write32_upper((u32)vxge_bVALn( |
Jon Mason | 16fded7 | 2011-01-18 15:02:21 +0000 | [diff] [blame] | 2235 | VXGE_HW_ONE_SHOT_VECT0_EN_ONE_SHOT_VECT0_EN, |
| 2236 | 0, 32), &vp_reg->one_shot_vect0_en); |
| 2237 | __vxge_hw_pio_mem_write32_upper((u32)vxge_bVALn( |
Ramkrishna Vepa | 1132413 | 2009-04-01 18:14:58 +0000 | [diff] [blame] | 2238 | VXGE_HW_ONE_SHOT_VECT1_EN_ONE_SHOT_VECT1_EN, |
| 2239 | 0, 32), &vp_reg->one_shot_vect1_en); |
Ramkrishna Vepa | 1132413 | 2009-04-01 18:14:58 +0000 | [diff] [blame] | 2240 | __vxge_hw_pio_mem_write32_upper((u32)vxge_bVALn( |
| 2241 | VXGE_HW_ONE_SHOT_VECT2_EN_ONE_SHOT_VECT2_EN, |
| 2242 | 0, 32), &vp_reg->one_shot_vect2_en); |
Ramkrishna Vepa | 1132413 | 2009-04-01 18:14:58 +0000 | [diff] [blame] | 2243 | } |
Ramkrishna Vepa | 1132413 | 2009-04-01 18:14:58 +0000 | [diff] [blame] | 2244 | } |
| 2245 | |
| 2246 | /** |
| 2247 | * vxge_hw_vpath_msix_mask - Mask MSIX Vector. |
| 2248 | * @vp: Virtual Path handle. |
| 2249 | * @msix_id: MSIX ID |
| 2250 | * |
| 2251 | * The function masks the msix interrupt for the given msix_id |
| 2252 | * |
| 2253 | * Returns: 0, |
| 2254 | * Otherwise, VXGE_HW_ERR_WRONG_IRQ if the msix index is out of range |
| 2255 | * status. |
| 2256 | * See also: |
| 2257 | */ |
| 2258 | void |
| 2259 | vxge_hw_vpath_msix_mask(struct __vxge_hw_vpath_handle *vp, int msix_id) |
| 2260 | { |
| 2261 | struct __vxge_hw_device *hldev = vp->vpath->hldev; |
| 2262 | __vxge_hw_pio_mem_write32_upper( |
Sreenivasa Honnur | b59c9457 | 2010-03-28 22:11:41 +0000 | [diff] [blame] | 2263 | (u32) vxge_bVALn(vxge_mBIT(msix_id >> 2), 0, 32), |
Ramkrishna Vepa | 1132413 | 2009-04-01 18:14:58 +0000 | [diff] [blame] | 2264 | &hldev->common_reg->set_msix_mask_vect[msix_id % 4]); |
Ramkrishna Vepa | 1132413 | 2009-04-01 18:14:58 +0000 | [diff] [blame] | 2265 | } |
| 2266 | |
| 2267 | /** |
Jon Mason | 16fded7 | 2011-01-18 15:02:21 +0000 | [diff] [blame] | 2268 | * vxge_hw_vpath_msix_clear - Clear MSIX Vector. |
| 2269 | * @vp: Virtual Path handle. |
| 2270 | * @msix_id: MSI ID |
| 2271 | * |
| 2272 | * The function clears the msix interrupt for the given msix_id |
| 2273 | * |
| 2274 | * Returns: 0, |
| 2275 | * Otherwise, VXGE_HW_ERR_WRONG_IRQ if the msix index is out of range |
| 2276 | * status. |
| 2277 | * See also: |
| 2278 | */ |
| 2279 | void vxge_hw_vpath_msix_clear(struct __vxge_hw_vpath_handle *vp, int msix_id) |
| 2280 | { |
| 2281 | struct __vxge_hw_device *hldev = vp->vpath->hldev; |
| 2282 | |
| 2283 | if ((hldev->config.intr_mode == VXGE_HW_INTR_MODE_MSIX_ONE_SHOT)) |
| 2284 | __vxge_hw_pio_mem_write32_upper( |
| 2285 | (u32) vxge_bVALn(vxge_mBIT((msix_id >> 2)), 0, 32), |
| 2286 | &hldev->common_reg->clr_msix_one_shot_vec[msix_id % 4]); |
| 2287 | else |
| 2288 | __vxge_hw_pio_mem_write32_upper( |
| 2289 | (u32) vxge_bVALn(vxge_mBIT((msix_id >> 2)), 0, 32), |
| 2290 | &hldev->common_reg->clear_msix_mask_vect[msix_id % 4]); |
| 2291 | } |
| 2292 | |
| 2293 | /** |
Ramkrishna Vepa | 1132413 | 2009-04-01 18:14:58 +0000 | [diff] [blame] | 2294 | * vxge_hw_vpath_msix_unmask - Unmask the MSIX Vector. |
| 2295 | * @vp: Virtual Path handle. |
| 2296 | * @msix_id: MSI ID |
| 2297 | * |
| 2298 | * The function unmasks the msix interrupt for the given msix_id |
| 2299 | * |
| 2300 | * Returns: 0, |
| 2301 | * Otherwise, VXGE_HW_ERR_WRONG_IRQ if the msix index is out of range |
| 2302 | * status. |
| 2303 | * See also: |
| 2304 | */ |
| 2305 | void |
| 2306 | vxge_hw_vpath_msix_unmask(struct __vxge_hw_vpath_handle *vp, int msix_id) |
| 2307 | { |
| 2308 | struct __vxge_hw_device *hldev = vp->vpath->hldev; |
| 2309 | __vxge_hw_pio_mem_write32_upper( |
Sreenivasa Honnur | b59c9457 | 2010-03-28 22:11:41 +0000 | [diff] [blame] | 2310 | (u32)vxge_bVALn(vxge_mBIT(msix_id >> 2), 0, 32), |
Ramkrishna Vepa | 1132413 | 2009-04-01 18:14:58 +0000 | [diff] [blame] | 2311 | &hldev->common_reg->clear_msix_mask_vect[msix_id%4]); |
Ramkrishna Vepa | 1132413 | 2009-04-01 18:14:58 +0000 | [diff] [blame] | 2312 | } |
| 2313 | |
| 2314 | /** |
Ramkrishna Vepa | 1132413 | 2009-04-01 18:14:58 +0000 | [diff] [blame] | 2315 | * vxge_hw_vpath_inta_mask_tx_rx - Mask Tx and Rx interrupts. |
| 2316 | * @vp: Virtual Path handle. |
| 2317 | * |
| 2318 | * Mask Tx and Rx vpath interrupts. |
| 2319 | * |
| 2320 | * See also: vxge_hw_vpath_inta_mask_tx_rx() |
| 2321 | */ |
| 2322 | void vxge_hw_vpath_inta_mask_tx_rx(struct __vxge_hw_vpath_handle *vp) |
| 2323 | { |
| 2324 | u64 tim_int_mask0[4] = {[0 ...3] = 0}; |
| 2325 | u32 tim_int_mask1[4] = {[0 ...3] = 0}; |
| 2326 | u64 val64; |
| 2327 | struct __vxge_hw_device *hldev = vp->vpath->hldev; |
| 2328 | |
| 2329 | VXGE_HW_DEVICE_TIM_INT_MASK_SET(tim_int_mask0, |
| 2330 | tim_int_mask1, vp->vpath->vp_id); |
| 2331 | |
| 2332 | val64 = readq(&hldev->common_reg->tim_int_mask0); |
| 2333 | |
| 2334 | if ((tim_int_mask0[VXGE_HW_VPATH_INTR_TX] != 0) || |
| 2335 | (tim_int_mask0[VXGE_HW_VPATH_INTR_RX] != 0)) { |
| 2336 | writeq((tim_int_mask0[VXGE_HW_VPATH_INTR_TX] | |
| 2337 | tim_int_mask0[VXGE_HW_VPATH_INTR_RX] | val64), |
| 2338 | &hldev->common_reg->tim_int_mask0); |
| 2339 | } |
| 2340 | |
| 2341 | val64 = readl(&hldev->common_reg->tim_int_mask1); |
| 2342 | |
| 2343 | if ((tim_int_mask1[VXGE_HW_VPATH_INTR_TX] != 0) || |
| 2344 | (tim_int_mask1[VXGE_HW_VPATH_INTR_RX] != 0)) { |
| 2345 | __vxge_hw_pio_mem_write32_upper( |
| 2346 | (tim_int_mask1[VXGE_HW_VPATH_INTR_TX] | |
| 2347 | tim_int_mask1[VXGE_HW_VPATH_INTR_RX] | val64), |
| 2348 | &hldev->common_reg->tim_int_mask1); |
| 2349 | } |
Ramkrishna Vepa | 1132413 | 2009-04-01 18:14:58 +0000 | [diff] [blame] | 2350 | } |
| 2351 | |
| 2352 | /** |
| 2353 | * vxge_hw_vpath_inta_unmask_tx_rx - Unmask Tx and Rx interrupts. |
| 2354 | * @vp: Virtual Path handle. |
| 2355 | * |
| 2356 | * Unmask Tx and Rx vpath interrupts. |
| 2357 | * |
| 2358 | * See also: vxge_hw_vpath_inta_mask_tx_rx() |
| 2359 | */ |
| 2360 | void vxge_hw_vpath_inta_unmask_tx_rx(struct __vxge_hw_vpath_handle *vp) |
| 2361 | { |
| 2362 | u64 tim_int_mask0[4] = {[0 ...3] = 0}; |
| 2363 | u32 tim_int_mask1[4] = {[0 ...3] = 0}; |
| 2364 | u64 val64; |
| 2365 | struct __vxge_hw_device *hldev = vp->vpath->hldev; |
| 2366 | |
| 2367 | VXGE_HW_DEVICE_TIM_INT_MASK_SET(tim_int_mask0, |
| 2368 | tim_int_mask1, vp->vpath->vp_id); |
| 2369 | |
| 2370 | val64 = readq(&hldev->common_reg->tim_int_mask0); |
| 2371 | |
| 2372 | if ((tim_int_mask0[VXGE_HW_VPATH_INTR_TX] != 0) || |
| 2373 | (tim_int_mask0[VXGE_HW_VPATH_INTR_RX] != 0)) { |
| 2374 | writeq((~(tim_int_mask0[VXGE_HW_VPATH_INTR_TX] | |
| 2375 | tim_int_mask0[VXGE_HW_VPATH_INTR_RX])) & val64, |
| 2376 | &hldev->common_reg->tim_int_mask0); |
| 2377 | } |
| 2378 | |
| 2379 | if ((tim_int_mask1[VXGE_HW_VPATH_INTR_TX] != 0) || |
| 2380 | (tim_int_mask1[VXGE_HW_VPATH_INTR_RX] != 0)) { |
| 2381 | __vxge_hw_pio_mem_write32_upper( |
| 2382 | (~(tim_int_mask1[VXGE_HW_VPATH_INTR_TX] | |
| 2383 | tim_int_mask1[VXGE_HW_VPATH_INTR_RX])) & val64, |
| 2384 | &hldev->common_reg->tim_int_mask1); |
| 2385 | } |
Ramkrishna Vepa | 1132413 | 2009-04-01 18:14:58 +0000 | [diff] [blame] | 2386 | } |
| 2387 | |
| 2388 | /** |
| 2389 | * vxge_hw_vpath_poll_rx - Poll Rx Virtual Path for completed |
| 2390 | * descriptors and process the same. |
| 2391 | * @ring: Handle to the ring object used for receive |
| 2392 | * |
| 2393 | * The function polls the Rx for the completed descriptors and calls |
| 2394 | * the driver via supplied completion callback. |
| 2395 | * |
| 2396 | * Returns: VXGE_HW_OK, if the polling is completed successful. |
| 2397 | * VXGE_HW_COMPLETIONS_REMAIN: There are still more completed |
| 2398 | * descriptors available which are yet to be processed. |
| 2399 | * |
| 2400 | * See also: vxge_hw_vpath_poll_rx() |
| 2401 | */ |
| 2402 | enum vxge_hw_status vxge_hw_vpath_poll_rx(struct __vxge_hw_ring *ring) |
| 2403 | { |
| 2404 | u8 t_code; |
| 2405 | enum vxge_hw_status status = VXGE_HW_OK; |
| 2406 | void *first_rxdh; |
| 2407 | u64 val64 = 0; |
| 2408 | int new_count = 0; |
| 2409 | |
| 2410 | ring->cmpl_cnt = 0; |
| 2411 | |
| 2412 | status = vxge_hw_ring_rxd_next_completed(ring, &first_rxdh, &t_code); |
| 2413 | if (status == VXGE_HW_OK) |
| 2414 | ring->callback(ring, first_rxdh, |
| 2415 | t_code, ring->channel.userdata); |
| 2416 | |
| 2417 | if (ring->cmpl_cnt != 0) { |
| 2418 | ring->doorbell_cnt += ring->cmpl_cnt; |
| 2419 | if (ring->doorbell_cnt >= ring->rxds_limit) { |
| 2420 | /* |
| 2421 | * Each RxD is of 4 qwords, update the number of |
| 2422 | * qwords replenished |
| 2423 | */ |
| 2424 | new_count = (ring->doorbell_cnt * 4); |
| 2425 | |
| 2426 | /* For each block add 4 more qwords */ |
| 2427 | ring->total_db_cnt += ring->doorbell_cnt; |
| 2428 | if (ring->total_db_cnt >= ring->rxds_per_block) { |
| 2429 | new_count += 4; |
| 2430 | /* Reset total count */ |
| 2431 | ring->total_db_cnt %= ring->rxds_per_block; |
| 2432 | } |
| 2433 | writeq(VXGE_HW_PRC_RXD_DOORBELL_NEW_QW_CNT(new_count), |
| 2434 | &ring->vp_reg->prc_rxd_doorbell); |
| 2435 | val64 = |
| 2436 | readl(&ring->common_reg->titan_general_int_status); |
| 2437 | ring->doorbell_cnt = 0; |
| 2438 | } |
| 2439 | } |
| 2440 | |
| 2441 | return status; |
| 2442 | } |
| 2443 | |
| 2444 | /** |
| 2445 | * vxge_hw_vpath_poll_tx - Poll Tx for completed descriptors and process |
| 2446 | * the same. |
| 2447 | * @fifo: Handle to the fifo object used for non offload send |
| 2448 | * |
Jon Mason | 98f45da | 2010-07-15 08:47:25 +0000 | [diff] [blame] | 2449 | * The function polls the Tx for the completed descriptors and calls |
Ramkrishna Vepa | 1132413 | 2009-04-01 18:14:58 +0000 | [diff] [blame] | 2450 | * the driver via supplied completion callback. |
| 2451 | * |
| 2452 | * Returns: VXGE_HW_OK, if the polling is completed successful. |
| 2453 | * VXGE_HW_COMPLETIONS_REMAIN: There are still more completed |
| 2454 | * descriptors available which are yet to be processed. |
Ramkrishna Vepa | 1132413 | 2009-04-01 18:14:58 +0000 | [diff] [blame] | 2455 | */ |
| 2456 | enum vxge_hw_status vxge_hw_vpath_poll_tx(struct __vxge_hw_fifo *fifo, |
Benjamin LaHaise | ff67df5 | 2009-08-04 10:21:03 +0000 | [diff] [blame] | 2457 | struct sk_buff ***skb_ptr, int nr_skb, |
| 2458 | int *more) |
Ramkrishna Vepa | 1132413 | 2009-04-01 18:14:58 +0000 | [diff] [blame] | 2459 | { |
| 2460 | enum vxge_hw_fifo_tcode t_code; |
| 2461 | void *first_txdlh; |
| 2462 | enum vxge_hw_status status = VXGE_HW_OK; |
| 2463 | struct __vxge_hw_channel *channel; |
| 2464 | |
| 2465 | channel = &fifo->channel; |
| 2466 | |
| 2467 | status = vxge_hw_fifo_txdl_next_completed(fifo, |
| 2468 | &first_txdlh, &t_code); |
| 2469 | if (status == VXGE_HW_OK) |
Benjamin LaHaise | ff67df5 | 2009-08-04 10:21:03 +0000 | [diff] [blame] | 2470 | if (fifo->callback(fifo, first_txdlh, t_code, |
| 2471 | channel->userdata, skb_ptr, nr_skb, more) != VXGE_HW_OK) |
Ramkrishna Vepa | 1132413 | 2009-04-01 18:14:58 +0000 | [diff] [blame] | 2472 | status = VXGE_HW_COMPLETIONS_REMAIN; |
| 2473 | |
| 2474 | return status; |
| 2475 | } |