bnx2x: Adding restriction on sge_buf_size

sge_buff_size may not be more than 0xffff.
Reported-by: NBjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: NVladislav Zolotarov <vladz@broadcom.com>
Tested-by: NBjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: NEilon Greenstein <eilong@broadcom.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/net/bnx2x_main.c

@@ -4518,7 +4518,8 @@ static void bnx2x_init_context(struct bnx2x *bp)
 				(USTORM_ETH_ST_CONTEXT_CONFIG_ENABLE_TPA |
 				 USTORM_ETH_ST_CONTEXT_CONFIG_ENABLE_SGE_RING);
 			context->ustorm_st_context.common.sge_buff_size =
-					(u16)(BCM_PAGE_SIZE*PAGES_PER_SGE);
+				(u16)min((u32)SGE_PAGE_SIZE*PAGES_PER_SGE,
+					 (u32)0xffff);
 			context->ustorm_st_context.common.sge_page_base_hi =
 						U64_HI(fp->rx_sge_mapping);
 			context->ustorm_st_context.common.sge_page_base_lo =