hisi_sas: add v2 SATA interrupt handler
Signed-off-by: John Garry <john.garry@huawei.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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@ -861,6 +861,86 @@ static irqreturn_t int_chnl_int_v2_hw(int irq_no, void *p)
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return IRQ_HANDLED;
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}
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static irqreturn_t sata_int_v2_hw(int irq_no, void *p)
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{
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struct hisi_sas_phy *phy = p;
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struct hisi_hba *hisi_hba = phy->hisi_hba;
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struct asd_sas_phy *sas_phy = &phy->sas_phy;
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struct device *dev = &hisi_hba->pdev->dev;
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struct hisi_sas_initial_fis *initial_fis;
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struct dev_to_host_fis *fis;
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u32 ent_tmp, ent_msk, ent_int, port_id, link_rate, hard_phy_linkrate;
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irqreturn_t res = IRQ_HANDLED;
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u8 attached_sas_addr[SAS_ADDR_SIZE] = {0};
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int phy_no;
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phy_no = sas_phy->id;
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initial_fis = &hisi_hba->initial_fis[phy_no];
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fis = &initial_fis->fis;
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ent_msk = hisi_sas_read32(hisi_hba, ENT_INT_SRC_MSK1);
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hisi_sas_write32(hisi_hba, ENT_INT_SRC_MSK1, ent_msk | 1 << phy_no);
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ent_int = hisi_sas_read32(hisi_hba, ENT_INT_SRC1);
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ent_tmp = ent_int;
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ent_int >>= ENT_INT_SRC1_D2H_FIS_CH1_OFF * (phy_no % 4);
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if ((ent_int & ENT_INT_SRC1_D2H_FIS_CH0_MSK) == 0) {
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dev_warn(dev, "sata int: phy%d did not receive FIS\n", phy_no);
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hisi_sas_write32(hisi_hba, ENT_INT_SRC1, ent_tmp);
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hisi_sas_write32(hisi_hba, ENT_INT_SRC_MSK1, ent_msk);
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res = IRQ_NONE;
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goto end;
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}
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if (unlikely(phy_no == 8)) {
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u32 port_state = hisi_sas_read32(hisi_hba, PORT_STATE);
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port_id = (port_state & PORT_STATE_PHY8_PORT_NUM_MSK) >>
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PORT_STATE_PHY8_PORT_NUM_OFF;
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link_rate = (port_state & PORT_STATE_PHY8_CONN_RATE_MSK) >>
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PORT_STATE_PHY8_CONN_RATE_OFF;
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} else {
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port_id = hisi_sas_read32(hisi_hba, PHY_PORT_NUM_MA);
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port_id = (port_id >> (4 * phy_no)) & 0xf;
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link_rate = hisi_sas_read32(hisi_hba, PHY_CONN_RATE);
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link_rate = (link_rate >> (phy_no * 4)) & 0xf;
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}
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if (port_id == 0xf) {
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dev_err(dev, "sata int: phy%d invalid portid\n", phy_no);
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res = IRQ_NONE;
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goto end;
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}
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sas_phy->linkrate = link_rate;
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hard_phy_linkrate = hisi_sas_phy_read32(hisi_hba, phy_no,
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HARD_PHY_LINKRATE);
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phy->maximum_linkrate = hard_phy_linkrate & 0xf;
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phy->minimum_linkrate = (hard_phy_linkrate >> 4) & 0xf;
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sas_phy->oob_mode = SATA_OOB_MODE;
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/* Make up some unique SAS address */
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attached_sas_addr[0] = 0x50;
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attached_sas_addr[7] = phy_no;
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memcpy(sas_phy->attached_sas_addr, attached_sas_addr, SAS_ADDR_SIZE);
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memcpy(sas_phy->frame_rcvd, fis, sizeof(struct dev_to_host_fis));
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dev_info(dev, "sata int phyup: phy%d link_rate=%d\n", phy_no, link_rate);
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phy->phy_type &= ~(PORT_TYPE_SAS | PORT_TYPE_SATA);
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phy->port_id = port_id;
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phy->phy_type |= PORT_TYPE_SATA;
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phy->phy_attached = 1;
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phy->identify.device_type = SAS_SATA_DEV;
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phy->frame_rcvd_size = sizeof(struct dev_to_host_fis);
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phy->identify.target_port_protocols = SAS_PROTOCOL_SATA;
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queue_work(hisi_hba->wq, &phy->phyup_ws);
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end:
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hisi_sas_write32(hisi_hba, ENT_INT_SRC1, ent_tmp);
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hisi_sas_write32(hisi_hba, ENT_INT_SRC_MSK1, ent_msk);
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return res;
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}
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static irq_handler_t phy_interrupts[HISI_SAS_PHY_INT_NR] = {
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int_phy_updown_v2_hw,
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int_chnl_int_v2_hw,
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@ -900,6 +980,26 @@ static int interrupt_init_v2_hw(struct hisi_hba *hisi_hba)
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}
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}
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for (i = 0; i < hisi_hba->n_phy; i++) {
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struct hisi_sas_phy *phy = &hisi_hba->phy[i];
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int idx = i + 72; /* First SATA interrupt is irq72 */
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irq = irq_map[idx];
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if (!irq) {
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dev_err(dev, "irq init: fail map phy interrupt %d\n",
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idx);
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return -ENOENT;
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}
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rc = devm_request_irq(dev, irq, sata_int_v2_hw, 0,
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DRV_NAME " sata", phy);
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if (rc) {
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dev_err(dev, "irq init: could not request "
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"sata interrupt %d, rc=%d\n",
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irq, rc);
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return -ENOENT;
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}
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}
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return 0;
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}
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