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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-11-26 17:30:59 +07:00
atp870u: Improve _probe()
Move scsi_host_alloc() to the top of _probe() to remove code duplication, *p and unneeded atpdev (de)allocation and copying. While at it, fix the error paths to return real error codes and also add missing pci_disble_device() call. Signed-off-by: Ondrej Zary <linux@rainbow-software.org> Reviewed-by: Hannes Reinicke <hare@suse.de> Acked-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Ondrej Zary
Martin K. Petersen
parent
e1e9a70642
commit
bdd5ac4065
@ -1248,29 +1248,41 @@ static int atp870u_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
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unsigned int base_io, error,n;
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unsigned char host_id;
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struct Scsi_Host *shpnt = NULL;
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struct atp_unit *atpdev, *p;
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struct atp_unit *atpdev;
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unsigned char setupdata[2][16];
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int err;
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atpdev = kzalloc(sizeof(*atpdev), GFP_KERNEL);
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if (!atpdev)
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return -ENOMEM;
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if (pci_enable_device(pdev))
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goto err_eio;
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err = pci_enable_device(pdev);
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if (err)
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goto fail;
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if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32))) {
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printk(KERN_ERR "atp870u: DMA mask required but not available.\n");
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goto err_eio;
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err = -EIO;
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goto disable_device;
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}
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err = -ENOMEM;
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shpnt = scsi_host_alloc(&atp870u_template, sizeof(struct atp_unit));
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if (!shpnt)
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goto disable_device;
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atpdev = shost_priv(shpnt);
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atpdev->host = shpnt;
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atpdev->pdev = pdev;
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pci_set_drvdata(pdev, atpdev);
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/*
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* It's probably easier to weed out some revisions like
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* this than via the PCI device table
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*/
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if (ent->device == PCI_DEVICE_ID_ARTOP_AEC7610) {
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atpdev->chip_ver = pdev->revision;
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if (atpdev->chip_ver < 2)
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goto err_eio;
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if (atpdev->chip_ver < 2) {
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err = -ENODEV;
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goto unregister;
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}
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}
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switch (ent->device) {
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@ -1358,41 +1370,33 @@ static int atp870u_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
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atpdev->async[0] = ~(atpdev->async[0]);
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atp_writeb_base(atpdev, 0x35, atpdev->global_map[0]);
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shpnt = scsi_host_alloc(&atp870u_template, sizeof(struct atp_unit));
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if (!shpnt)
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goto err_nomem;
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p = (struct atp_unit *)&shpnt->hostdata;
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atpdev->host = shpnt;
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atpdev->pdev = pdev;
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pci_set_drvdata(pdev, p);
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memcpy(p, atpdev, sizeof(*atpdev));
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if (atp870u_init_tables(shpnt) < 0) {
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printk(KERN_ERR "Unable to allocate tables for Acard controller\n");
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err = -ENOMEM;
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goto unregister;
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}
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if (request_irq(pdev->irq, atp870u_intr_handle, IRQF_SHARED, "atp880i", shpnt)) {
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err = request_irq(pdev->irq, atp870u_intr_handle, IRQF_SHARED, "atp880i", shpnt);
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if (err) {
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printk(KERN_ERR "Unable to allocate IRQ%d for Acard controller.\n", pdev->irq);
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goto free_tables;
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}
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spin_lock_irqsave(shpnt->host_lock, flags);
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k = atp_readb_base(p, 0x38) & 0x80;
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atp_writeb_base(p, 0x38, k);
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atp_writeb_base(p, 0x3b, 0x20);
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k = atp_readb_base(atpdev, 0x38) & 0x80;
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atp_writeb_base(atpdev, 0x38, k);
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atp_writeb_base(atpdev, 0x3b, 0x20);
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mdelay(32);
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atp_writeb_base(p, 0x3b, 0);
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atp_writeb_base(atpdev, 0x3b, 0);
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mdelay(32);
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atp_readb_io(p, 0, 0x1b);
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atp_readb_io(p, 0, 0x17);
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atp_readb_io(atpdev, 0, 0x1b);
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atp_readb_io(atpdev, 0, 0x17);
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atp_set_host_id(p, 0, host_id);
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atp_set_host_id(atpdev, 0, host_id);
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tscam(shpnt);
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atp_is(p, 0, true, atp_readb_base(p, 0x3f) & 0x40);
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atp_writeb_base(p, 0x38, 0xb0);
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atp_is(atpdev, 0, true, atp_readb_base(atpdev, 0x3f) & 0x40);
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atp_writeb_base(atpdev, 0x38, 0xb0);
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shpnt->max_id = 16;
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shpnt->this_id = host_id;
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shpnt->unique_id = base_io;
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@ -1410,50 +1414,43 @@ static int atp870u_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
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atpdev->pciport[0] = base_io + 0x40;
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atpdev->pciport[1] = base_io + 0x50;
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shpnt = scsi_host_alloc(&atp870u_template, sizeof(struct atp_unit));
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if (!shpnt)
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goto err_nomem;
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p = (struct atp_unit *)&shpnt->hostdata;
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atpdev->host = shpnt;
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atpdev->pdev = pdev;
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pci_set_drvdata(pdev, p);
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memcpy(p, atpdev, sizeof(struct atp_unit));
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if (atp870u_init_tables(shpnt) < 0)
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if (atp870u_init_tables(shpnt) < 0) {
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err = -ENOMEM;
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goto unregister;
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}
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#ifdef ED_DBGP
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printk("request_irq() shpnt %p hostdata %p\n", shpnt, p);
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printk("request_irq() shpnt %p hostdata %p\n", shpnt, atpdev);
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#endif
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if (request_irq(pdev->irq, atp870u_intr_handle, IRQF_SHARED, "atp870u", shpnt)) {
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err = request_irq(pdev->irq, atp870u_intr_handle, IRQF_SHARED, "atp870u", shpnt);
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if (err) {
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printk(KERN_ERR "Unable to allocate IRQ for Acard controller.\n");
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goto free_tables;
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}
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spin_lock_irqsave(shpnt->host_lock, flags);
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c = atp_readb_base(p, 0x29);
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atp_writeb_base(p, 0x29, c | 0x04);
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c = atp_readb_base(atpdev, 0x29);
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atp_writeb_base(atpdev, 0x29, c | 0x04);
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n=0x1f80;
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next_fblk_885:
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if (n >= 0x2000) {
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goto flash_ok_885;
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}
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atp_writew_base(p, 0x3c, n);
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if (atp_readl_base(p, 0x38) == 0xffffffff) {
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atp_writew_base(atpdev, 0x3c, n);
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if (atp_readl_base(atpdev, 0x38) == 0xffffffff) {
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goto flash_ok_885;
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}
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for (m=0; m < 2; m++) {
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p->global_map[m]= 0;
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atpdev->global_map[m]= 0;
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for (k=0; k < 4; k++) {
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atp_writew_base(p, 0x3c, n++);
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((unsigned long *)&setupdata[m][0])[k] = atp_readl_base(p, 0x38);
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atp_writew_base(atpdev, 0x3c, n++);
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((unsigned long *)&setupdata[m][0])[k] = atp_readl_base(atpdev, 0x38);
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}
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for (k=0; k < 4; k++) {
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atp_writew_base(p, 0x3c, n++);
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((unsigned long *)&p->sp[m][0])[k] = atp_readl_base(p, 0x38);
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atp_writew_base(atpdev, 0x3c, n++);
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((unsigned long *)&atpdev->sp[m][0])[k] = atp_readl_base(atpdev, 0x38);
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}
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n += 8;
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}
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@ -1462,81 +1459,81 @@ static int atp870u_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
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#ifdef ED_DBGP
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printk( "Flash Read OK\n");
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#endif
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c = atp_readb_base(p, 0x29);
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atp_writeb_base(p, 0x29, c & 0xfb);
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c = atp_readb_base(atpdev, 0x29);
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atp_writeb_base(atpdev, 0x29, c & 0xfb);
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for (c=0;c < 2;c++) {
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p->ultra_map[c]=0;
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p->async[c] = 0;
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atpdev->ultra_map[c]=0;
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atpdev->async[c] = 0;
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for (k=0; k < 16; k++) {
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n=1;
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n = n << k;
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if (p->sp[c][k] > 1) {
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p->ultra_map[c] |= n;
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if (atpdev->sp[c][k] > 1) {
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atpdev->ultra_map[c] |= n;
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} else {
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if (p->sp[c][k] == 0) {
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p->async[c] |= n;
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if (atpdev->sp[c][k] == 0) {
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atpdev->async[c] |= n;
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}
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}
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}
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p->async[c] = ~(p->async[c]);
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atpdev->async[c] = ~(atpdev->async[c]);
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if (p->global_map[c] == 0) {
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if (atpdev->global_map[c] == 0) {
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k=setupdata[c][1];
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if ((k & 0x40) != 0)
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p->global_map[c] |= 0x20;
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atpdev->global_map[c] |= 0x20;
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k &= 0x07;
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p->global_map[c] |= k;
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atpdev->global_map[c] |= k;
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if ((setupdata[c][2] & 0x04) != 0)
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p->global_map[c] |= 0x08;
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p->host_id[c] = setupdata[c][0] & 0x07;
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atpdev->global_map[c] |= 0x08;
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atpdev->host_id[c] = setupdata[c][0] & 0x07;
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}
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}
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k = atp_readb_base(p, 0x28) & 0x8f;
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k = atp_readb_base(atpdev, 0x28) & 0x8f;
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k |= 0x10;
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atp_writeb_base(p, 0x28, k);
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atp_writeb_pci(p, 0, 1, 0x80);
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atp_writeb_pci(p, 1, 1, 0x80);
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atp_writeb_base(atpdev, 0x28, k);
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atp_writeb_pci(atpdev, 0, 1, 0x80);
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atp_writeb_pci(atpdev, 1, 1, 0x80);
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mdelay(100);
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atp_writeb_pci(p, 0, 1, 0);
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atp_writeb_pci(p, 1, 1, 0);
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atp_writeb_pci(atpdev, 0, 1, 0);
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atp_writeb_pci(atpdev, 1, 1, 0);
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mdelay(1000);
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atp_readb_io(p, 0, 0x1b);
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atp_readb_io(p, 0, 0x17);
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atp_readb_io(p, 1, 0x1b);
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atp_readb_io(p, 1, 0x17);
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atp_readb_io(atpdev, 0, 0x1b);
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atp_readb_io(atpdev, 0, 0x17);
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atp_readb_io(atpdev, 1, 0x1b);
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atp_readb_io(atpdev, 1, 0x17);
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k=p->host_id[0];
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k=atpdev->host_id[0];
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if (k > 7)
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k = (k & 0x07) | 0x40;
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atp_set_host_id(p, 0, k);
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atp_set_host_id(atpdev, 0, k);
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k=p->host_id[1];
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k=atpdev->host_id[1];
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if (k > 7)
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k = (k & 0x07) | 0x40;
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atp_set_host_id(p, 1, k);
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atp_set_host_id(atpdev, 1, k);
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mdelay(600); /* this delay used to be called tscam_885() */
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printk(KERN_INFO " Scanning Channel A SCSI Device ...\n");
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atp_is(p, 0, true, atp_readb_io(p, 0, 0x1b) >> 7);
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atp_writeb_io(p, 0, 0x16, 0x80);
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atp_is(atpdev, 0, true, atp_readb_io(atpdev, 0, 0x1b) >> 7);
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atp_writeb_io(atpdev, 0, 0x16, 0x80);
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printk(KERN_INFO " Scanning Channel B SCSI Device ...\n");
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atp_is(p, 1, true, atp_readb_io(p, 1, 0x1b) >> 7);
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atp_writeb_io(p, 1, 0x16, 0x80);
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k = atp_readb_base(p, 0x28) & 0xcf;
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atp_is(atpdev, 1, true, atp_readb_io(atpdev, 1, 0x1b) >> 7);
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atp_writeb_io(atpdev, 1, 0x16, 0x80);
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k = atp_readb_base(atpdev, 0x28) & 0xcf;
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k |= 0xc0;
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atp_writeb_base(p, 0x28, k);
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k = atp_readb_base(p, 0x1f) | 0x80;
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atp_writeb_base(p, 0x1f, k);
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k = atp_readb_base(p, 0x29) | 0x01;
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atp_writeb_base(p, 0x29, k);
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atp_writeb_base(atpdev, 0x28, k);
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k = atp_readb_base(atpdev, 0x1f) | 0x80;
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atp_writeb_base(atpdev, 0x1f, k);
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k = atp_readb_base(atpdev, 0x29) | 0x01;
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atp_writeb_base(atpdev, 0x29, k);
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#ifdef ED_DBGP
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//printk("atp885: atp_host[0] 0x%p\n", atp_host[0]);
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#endif
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shpnt->max_id = 16;
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shpnt->max_lun = (p->global_map[0] & 0x07) + 1;
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shpnt->max_lun = (atpdev->global_map[0] & 0x07) + 1;
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shpnt->max_channel = 1;
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shpnt->this_id = p->host_id[0];
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shpnt->this_id = atpdev->host_id[0];
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shpnt->unique_id = base_io;
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shpnt->io_port = base_io;
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shpnt->n_io_port = 0xff; /* Number of bytes of I/O space used */
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@ -1563,41 +1560,35 @@ static int atp870u_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
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atpdev->ultra_map[0] = 0xffff;
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}
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shpnt = scsi_host_alloc(&atp870u_template, sizeof(struct atp_unit));
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if (!shpnt)
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goto err_nomem;
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p = (struct atp_unit *)&shpnt->hostdata;
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atpdev->host = shpnt;
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atpdev->pdev = pdev;
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pci_set_drvdata(pdev, p);
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memcpy(p, atpdev, sizeof(*atpdev));
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if (atp870u_init_tables(shpnt) < 0)
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if (atp870u_init_tables(shpnt) < 0) {
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err = -ENOMEM;
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goto unregister;
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}
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if (request_irq(pdev->irq, atp870u_intr_handle, IRQF_SHARED, "atp870i", shpnt)) {
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err = request_irq(pdev->irq, atp870u_intr_handle, IRQF_SHARED, "atp870i", shpnt);
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if (err) {
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printk(KERN_ERR "Unable to allocate IRQ%d for Acard controller.\n", pdev->irq);
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goto free_tables;
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}
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spin_lock_irqsave(shpnt->host_lock, flags);
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if (atpdev->chip_ver > 0x07) /* check if atp876 chip then enable terminator */
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atp_writeb_base(p, 0x3e, 0x00);
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atp_writeb_base(atpdev, 0x3e, 0x00);
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k = (atp_readb_base(p, 0x3a) & 0xf3) | 0x10;
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atp_writeb_base(p, 0x3a, k);
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atp_writeb_base(p, 0x3a, k & 0xdf);
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k = (atp_readb_base(atpdev, 0x3a) & 0xf3) | 0x10;
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atp_writeb_base(atpdev, 0x3a, k);
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atp_writeb_base(atpdev, 0x3a, k & 0xdf);
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mdelay(32);
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atp_writeb_base(p, 0x3a, k);
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atp_writeb_base(atpdev, 0x3a, k);
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mdelay(32);
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atp_set_host_id(p, 0, host_id);
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atp_set_host_id(atpdev, 0, host_id);
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tscam(shpnt);
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atp_writeb_base(p, 0x3a, atp_readb_base(p, 0x3a) | 0x10);
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atp_is(p, 0, p->chip_ver == 4, 0);
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atp_writeb_base(p, 0x3a, atp_readb_base(p, 0x3a) & 0xef);
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atp_writeb_base(p, 0x3b, atp_readb_base(p, 0x3b) | 0x20);
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atp_writeb_base(atpdev, 0x3a, atp_readb_base(atpdev, 0x3a) | 0x10);
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atp_is(atpdev, 0, atpdev->chip_ver == 4, 0);
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atp_writeb_base(atpdev, 0x3a, atp_readb_base(atpdev, 0x3a) & 0xef);
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atp_writeb_base(atpdev, 0x3b, atp_readb_base(atpdev, 0x3b) | 0x20);
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if (atpdev->chip_ver == 4)
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shpnt->max_id = 16;
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else
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@ -1609,9 +1600,12 @@ static int atp870u_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
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shpnt->irq = pdev->irq;
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}
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spin_unlock_irqrestore(shpnt->host_lock, flags);
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if (!request_region(base_io, shpnt->n_io_port, "atp870u"))
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if (!request_region(base_io, shpnt->n_io_port, "atp870u")) {
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err = -EBUSY;
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goto request_io_fail;
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if (scsi_add_host(shpnt, &pdev->dev))
|
||||
}
|
||||
err = scsi_add_host(shpnt, &pdev->dev);
|
||||
if (err)
|
||||
goto scsi_add_fail;
|
||||
scsi_scan_host(shpnt);
|
||||
#ifdef ED_DBGP
|
||||
@ -1629,15 +1623,11 @@ static int atp870u_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
|
||||
printk("atp870u_prob:free_table\n");
|
||||
atp870u_free_tables(shpnt);
|
||||
unregister:
|
||||
printk("atp870u_prob:unregister\n");
|
||||
scsi_host_put(shpnt);
|
||||
return -1;
|
||||
err_eio:
|
||||
kfree(atpdev);
|
||||
return -EIO;
|
||||
err_nomem:
|
||||
kfree(atpdev);
|
||||
return -ENOMEM;
|
||||
disable_device:
|
||||
pci_disable_device(pdev);
|
||||
fail:
|
||||
return err;
|
||||
}
|
||||
|
||||
/* The abort command does not leave the device in a clean state where
|
||||
|
||||
Loading…
Reference in New Issue
Block a user