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Commit f89439bc authored by Stephen M. Cameron's avatar Stephen M. Cameron Committed by Christoph Hellwig
Browse files

hpsa: choose number of reply queues more intelligently. 



No sense having 8 or 16 reply queues if you only have 4 cpus,
and likewise no sense limiting to 8 reply queues if you have
many more cpus.

Signed-off-by: default avatarStephen M. Cameron <scameron@beardog.cce.hp.com>
Reviewed-by: default avatarMike Miller <michael.miller@canonical.com>
Reviewed-by: default avatarScott Teel <scott.teel@hp.com>
Signed-off-by: default avatarChristoph Hellwig <hch@lst.de>
parent 7b9235ee

drivers/scsi/hpsa.c

+2 −0
Original line number Diff line number Diff line
@@ -6164,6 +6164,8 @@ static void hpsa_interrupt_mode(struct ctlr_info *h) 
	if (pci_find_capability(h->pdev, PCI_CAP_ID_MSIX)) {

		dev_info(&h->pdev->dev, "MSIX\n");

		h->msix_vector = MAX_REPLY_QUEUES;

		if (h->msix_vector > num_online_cpus())

			h->msix_vector = num_online_cpus();

		err = pci_enable_msix(h->pdev, hpsa_msix_entries,

				      h->msix_vector);

		if (err > 0) {

drivers/scsi/hpsa_cmd.h

+1 −1
Original line number Diff line number Diff line
@@ -615,7 +615,7 @@ struct TransTable_struct { 
	u32            RepQCount;

	u32            RepQCtrAddrLow32;

	u32            RepQCtrAddrHigh32;

#define MAX_REPLY_QUEUES 8

#define MAX_REPLY_QUEUES 64

	struct vals32  RepQAddr[MAX_REPLY_QUEUES];

};